LCOV - code coverage report
Current view: top level - ogr - ogrspatialreference.cpp (source / functions) Hit Total Coverage
Test: gdal_filtered.info Lines: 3474 4249 81.8 %
Date: 2026-04-17 12:28:51 Functions: 299 375 79.7 %

          Line data    Source code
       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  OpenGIS Simple Features Reference Implementation
       4             :  * Purpose:  The OGRSpatialReference class.
       5             :  * Author:   Frank Warmerdam, warmerdam@pobox.com
       6             :  *
       7             :  ******************************************************************************
       8             :  * Copyright (c) 1999,  Les Technologies SoftMap Inc.
       9             :  * Copyright (c) 2008-2018, Even Rouault <even.rouault at spatialys.com>
      10             :  *
      11             :  * SPDX-License-Identifier: MIT
      12             :  ****************************************************************************/
      13             : 
      14             : #include "cpl_port.h"
      15             : #include "ogr_spatialref.h"
      16             : 
      17             : #include <cmath>
      18             : #include <cstddef>
      19             : #include <cstdio>
      20             : #include <cstdlib>
      21             : #include <cstring>
      22             : #include <limits>
      23             : #include <string>
      24             : #include <mutex>
      25             : #include <set>
      26             : #include <vector>
      27             : 
      28             : #include "cpl_atomic_ops.h"
      29             : #include "cpl_conv.h"
      30             : #include "cpl_csv.h"
      31             : #include "cpl_error.h"
      32             : #include "cpl_error_internal.h"
      33             : #include "cpl_http.h"
      34             : #include "cpl_json.h"
      35             : #include "cpl_multiproc.h"
      36             : #include "cpl_string.h"
      37             : #include "cpl_vsi.h"
      38             : #include "ogr_core.h"
      39             : #include "ogr_p.h"
      40             : #include "ogr_proj_p.h"
      41             : #include "ogr_srs_api.h"
      42             : #include "ogrmitabspatialref.h"
      43             : 
      44             : #include "proj.h"
      45             : #include "proj_experimental.h"
      46             : #include "proj_constants.h"
      47             : 
      48             : bool GDALThreadLocalDatasetCacheIsInDestruction();
      49             : 
      50             : // Exists since 8.0.1
      51             : #ifndef PROJ_AT_LEAST_VERSION
      52             : #define PROJ_COMPUTE_VERSION(maj, min, patch)                                  \
      53             :     ((maj) * 10000 + (min) * 100 + (patch))
      54             : #define PROJ_VERSION_NUMBER                                                    \
      55             :     PROJ_COMPUTE_VERSION(PROJ_VERSION_MAJOR, PROJ_VERSION_MINOR,               \
      56             :                          PROJ_VERSION_PATCH)
      57             : #define PROJ_AT_LEAST_VERSION(maj, min, patch)                                 \
      58             :     (PROJ_VERSION_NUMBER >= PROJ_COMPUTE_VERSION(maj, min, patch))
      59             : #endif
      60             : 
      61             : #define STRINGIFY(s) #s
      62             : #define XSTRINGIFY(s) STRINGIFY(s)
      63             : 
      64             : struct OGRSpatialReference::Private
      65             : {
      66             :     struct Listener final : public OGR_SRSNode::Listener
      67             :     {
      68             :         OGRSpatialReference::Private *m_poObj = nullptr;
      69             : 
      70      268814 :         explicit Listener(OGRSpatialReference::Private *poObj) : m_poObj(poObj)
      71             :         {
      72      268814 :         }
      73             : 
      74             :         Listener(const Listener &) = delete;
      75             :         Listener &operator=(const Listener &) = delete;
      76             : 
      77             :         void notifyChange(OGR_SRSNode *) override;
      78             :     };
      79             : 
      80             :     OGRSpatialReference *m_poSelf = nullptr;
      81             :     PJ *m_pj_crs = nullptr;
      82             : 
      83             :     // Temporary state used for object construction
      84             :     PJ_TYPE m_pjType = PJ_TYPE_UNKNOWN;
      85             :     CPLString m_osPrimeMeridianName{};
      86             :     CPLString m_osAngularUnits{};
      87             :     CPLString m_osLinearUnits{};
      88             :     CPLString m_osAxisName[3]{};
      89             : 
      90             :     std::vector<std::string> m_wktImportWarnings{};
      91             :     std::vector<std::string> m_wktImportErrors{};
      92             :     CPLString m_osAreaName{};
      93             :     CPLString m_celestialBodyName{};
      94             : 
      95             :     bool m_bIsThreadSafe = false;
      96             :     bool m_bNodesChanged = false;
      97             :     bool m_bNodesWKT2 = false;
      98             :     OGR_SRSNode *m_poRoot = nullptr;
      99             : 
     100             :     double dfFromGreenwich = 0.0;
     101             :     double dfToMeter = 0.0;
     102             :     double dfToDegrees = 0.0;
     103             :     double m_dfAngularUnitToRadian = 0.0;
     104             : 
     105             :     int nRefCount = 1;
     106             :     int bNormInfoSet = FALSE;
     107             : 
     108             :     PJ *m_pj_geod_base_crs_temp = nullptr;
     109             :     PJ *m_pj_proj_crs_cs_temp = nullptr;
     110             : 
     111             :     bool m_pj_crs_modified_during_demote = false;
     112             :     PJ *m_pj_bound_crs_target = nullptr;
     113             :     PJ *m_pj_bound_crs_co = nullptr;
     114             :     PJ *m_pj_crs_backup = nullptr;
     115             :     OGR_SRSNode *m_poRootBackup = nullptr;
     116             : 
     117             :     bool m_bMorphToESRI = false;
     118             :     bool m_bHasCenterLong = false;
     119             : 
     120             :     std::shared_ptr<Listener> m_poListener{};
     121             : 
     122             :     std::recursive_mutex m_mutex{};
     123             : 
     124             :     OSRAxisMappingStrategy m_axisMappingStrategy = OAMS_AUTHORITY_COMPLIANT;
     125             :     std::vector<int> m_axisMapping{1, 2, 3};
     126             : 
     127             :     double m_coordinateEpoch = 0;  // as decimal year
     128             : 
     129             :     explicit Private(OGRSpatialReference *poSelf);
     130             :     ~Private();
     131             :     Private(const Private &) = delete;
     132             :     Private &operator=(const Private &) = delete;
     133             : 
     134           2 :     void SetThreadSafe()
     135             :     {
     136           2 :         m_bIsThreadSafe = true;
     137           2 :     }
     138             : 
     139             :     void clear();
     140             :     void setPjCRS(PJ *pj_crsIn, bool doRefreshAxisMapping = true);
     141             :     void setRoot(OGR_SRSNode *poRoot);
     142             :     void refreshProjObj();
     143             :     void nodesChanged();
     144             :     void refreshRootFromProjObj(bool bForceWKT2);
     145             :     void invalidateNodes();
     146             : 
     147             :     void setMorphToESRI(bool b);
     148             : 
     149             :     PJ *getGeodBaseCRS();
     150             :     PJ *getProjCRSCoordSys();
     151             : 
     152             :     const char *getProjCRSName();
     153             :     OGRErr replaceConversionAndUnref(PJ *conv);
     154             : 
     155             :     void demoteFromBoundCRS();
     156             :     void undoDemoteFromBoundCRS();
     157             : 
     158     1263710 :     PJ_CONTEXT *getPROJContext()
     159             :     {
     160     1263710 :         return OSRGetProjTLSContext();
     161             :     }
     162             : 
     163             :     const char *nullifyTargetKeyIfPossible(const char *pszTargetKey);
     164             : 
     165             :     void refreshAxisMapping();
     166             : 
     167             :     // This structures enables locking during calls to OGRSpatialReference
     168             :     // public methods. Locking is only needed for instances of
     169             :     // OGRSpatialReference that have been asked to be thread-safe at
     170             :     // construction.
     171             :     // The lock is not just for a single call to OGRSpatialReference::Private,
     172             :     // but for the series of calls done by a OGRSpatialReference method.
     173             :     // We need a recursive mutex, because some OGRSpatialReference methods
     174             :     // may call other ones.
     175             :     struct OptionalLockGuard
     176             :     {
     177             :         Private &m_private;
     178             : 
     179    18428200 :         explicit OptionalLockGuard(Private *p) : m_private(*p)
     180             :         {
     181    18428200 :             if (m_private.m_bIsThreadSafe)
     182        3798 :                 m_private.m_mutex.lock();
     183    18428200 :         }
     184             : 
     185    18428200 :         ~OptionalLockGuard()
     186    18428200 :         {
     187    18428200 :             if (m_private.m_bIsThreadSafe)
     188        3798 :                 m_private.m_mutex.unlock();
     189    18428200 :         }
     190             :     };
     191             : 
     192    18428200 :     inline OptionalLockGuard GetOptionalLockGuard()
     193             :     {
     194    18428200 :         return OptionalLockGuard(this);
     195             :     }
     196             : };
     197             : 
     198     2381310 : void OGRSpatialReference::Private::Listener::notifyChange(OGR_SRSNode *)
     199             : {
     200     2381310 :     m_poObj->nodesChanged();
     201     2381310 : }
     202             : 
     203             : #define TAKE_OPTIONAL_LOCK()                                                   \
     204             :     auto lock = d->GetOptionalLockGuard();                                     \
     205             :     CPL_IGNORE_RET_VAL(lock)
     206             : 
     207      268814 : static OSRAxisMappingStrategy GetDefaultAxisMappingStrategy()
     208             : {
     209             :     const char *pszDefaultAMS =
     210      268814 :         CPLGetConfigOption("OSR_DEFAULT_AXIS_MAPPING_STRATEGY", nullptr);
     211      268814 :     if (pszDefaultAMS)
     212             :     {
     213           1 :         if (EQUAL(pszDefaultAMS, "AUTHORITY_COMPLIANT"))
     214           0 :             return OAMS_AUTHORITY_COMPLIANT;
     215           1 :         else if (EQUAL(pszDefaultAMS, "TRADITIONAL_GIS_ORDER"))
     216           1 :             return OAMS_TRADITIONAL_GIS_ORDER;
     217             :         else
     218             :         {
     219           0 :             CPLError(CE_Failure, CPLE_AppDefined,
     220             :                      "Illegal value for OSR_DEFAULT_AXIS_MAPPING_STRATEGY = %s",
     221             :                      pszDefaultAMS);
     222             :         }
     223             :     }
     224      268813 :     return OAMS_AUTHORITY_COMPLIANT;
     225             : }
     226             : 
     227      268814 : OGRSpatialReference::Private::Private(OGRSpatialReference *poSelf)
     228      268814 :     : m_poSelf(poSelf), m_poListener(std::make_shared<Listener>(this))
     229             : {
     230             :     // Get the default value for m_axisMappingStrategy from the
     231             :     // OSR_DEFAULT_AXIS_MAPPING_STRATEGY configuration option, if set.
     232      268814 :     m_axisMappingStrategy = GetDefaultAxisMappingStrategy();
     233      268814 : }
     234             : 
     235     1069290 : OGRSpatialReference::Private::~Private()
     236             : {
     237             :     // In case we destroy the object not in the thread that created it,
     238             :     // we need to reassign the PROJ context. Having the context bundled inside
     239             :     // PJ* deeply sucks...
     240      267322 :     PJ_CONTEXT *pj_context_to_destroy = nullptr;
     241             :     PJ_CONTEXT *ctxt;
     242      267322 :     if (GDALThreadLocalDatasetCacheIsInDestruction())
     243             :     {
     244         181 :         pj_context_to_destroy = proj_context_create();
     245         181 :         ctxt = pj_context_to_destroy;
     246             :     }
     247             :     else
     248             :     {
     249      267141 :         ctxt = getPROJContext();
     250             :     }
     251             : 
     252      267322 :     proj_assign_context(m_pj_crs, ctxt);
     253      267322 :     proj_destroy(m_pj_crs);
     254             : 
     255      267322 :     proj_assign_context(m_pj_geod_base_crs_temp, ctxt);
     256      267322 :     proj_destroy(m_pj_geod_base_crs_temp);
     257             : 
     258      267322 :     proj_assign_context(m_pj_proj_crs_cs_temp, ctxt);
     259      267322 :     proj_destroy(m_pj_proj_crs_cs_temp);
     260             : 
     261      267322 :     proj_assign_context(m_pj_bound_crs_target, ctxt);
     262      267322 :     proj_destroy(m_pj_bound_crs_target);
     263             : 
     264      267322 :     proj_assign_context(m_pj_bound_crs_co, ctxt);
     265      267322 :     proj_destroy(m_pj_bound_crs_co);
     266             : 
     267      267322 :     proj_assign_context(m_pj_crs_backup, ctxt);
     268      267322 :     proj_destroy(m_pj_crs_backup);
     269             : 
     270      267322 :     delete m_poRootBackup;
     271      267322 :     delete m_poRoot;
     272      267322 :     proj_context_destroy(pj_context_to_destroy);
     273      267322 : }
     274             : 
     275      132702 : void OGRSpatialReference::Private::clear()
     276             : {
     277      132702 :     proj_assign_context(m_pj_crs, getPROJContext());
     278      132702 :     proj_destroy(m_pj_crs);
     279      132702 :     m_pj_crs = nullptr;
     280             : 
     281      132702 :     delete m_poRoot;
     282      132702 :     m_poRoot = nullptr;
     283      132702 :     m_bNodesChanged = false;
     284             : 
     285      132702 :     m_wktImportWarnings.clear();
     286      132702 :     m_wktImportErrors.clear();
     287             : 
     288      132702 :     m_pj_crs_modified_during_demote = false;
     289      132702 :     m_pjType = PJ_TYPE_UNKNOWN;
     290      132702 :     m_osPrimeMeridianName.clear();
     291      132702 :     m_osAngularUnits.clear();
     292      132702 :     m_osLinearUnits.clear();
     293             : 
     294      132702 :     bNormInfoSet = FALSE;
     295      132702 :     dfFromGreenwich = 1.0;
     296      132702 :     dfToMeter = 1.0;
     297      132702 :     dfToDegrees = 1.0;
     298      132702 :     m_dfAngularUnitToRadian = 0.0;
     299             : 
     300      132702 :     m_bMorphToESRI = false;
     301      132702 :     m_bHasCenterLong = false;
     302             : 
     303      132702 :     m_coordinateEpoch = 0.0;
     304      132702 : }
     305             : 
     306       29719 : void OGRSpatialReference::Private::setRoot(OGR_SRSNode *poRoot)
     307             : {
     308       29719 :     m_poRoot = poRoot;
     309       29719 :     if (m_poRoot)
     310             :     {
     311       29719 :         m_poRoot->RegisterListener(m_poListener);
     312             :     }
     313       29719 :     nodesChanged();
     314       29719 : }
     315             : 
     316      195274 : void OGRSpatialReference::Private::setPjCRS(PJ *pj_crsIn,
     317             :                                             bool doRefreshAxisMapping)
     318             : {
     319      195274 :     auto ctxt = getPROJContext();
     320             : 
     321             : #if PROJ_AT_LEAST_VERSION(9, 2, 0)
     322             :     if (proj_get_type(pj_crsIn) == PJ_TYPE_COORDINATE_METADATA)
     323             :     {
     324             :         const double dfEpoch =
     325             :             proj_coordinate_metadata_get_epoch(ctxt, pj_crsIn);
     326             :         if (!std::isnan(dfEpoch))
     327             :         {
     328             :             m_poSelf->SetCoordinateEpoch(dfEpoch);
     329             :         }
     330             :         auto crs = proj_get_source_crs(ctxt, pj_crsIn);
     331             :         proj_destroy(pj_crsIn);
     332             :         pj_crsIn = crs;
     333             :     }
     334             : #endif
     335             : 
     336      195274 :     proj_assign_context(m_pj_crs, ctxt);
     337      195274 :     proj_destroy(m_pj_crs);
     338      195274 :     m_pj_crs = pj_crsIn;
     339      195274 :     if (m_pj_crs)
     340             :     {
     341      195223 :         m_pjType = proj_get_type(m_pj_crs);
     342             :     }
     343      195274 :     if (m_pj_crs_backup)
     344             :     {
     345          21 :         m_pj_crs_modified_during_demote = true;
     346             :     }
     347      195274 :     invalidateNodes();
     348      195274 :     if (doRefreshAxisMapping)
     349             :     {
     350      195254 :         refreshAxisMapping();
     351             :     }
     352      195274 : }
     353             : 
     354      791889 : void OGRSpatialReference::Private::refreshProjObj()
     355             : {
     356      791889 :     if (m_bNodesChanged && m_poRoot)
     357             :     {
     358        8850 :         char *pszWKT = nullptr;
     359        8850 :         m_poRoot->exportToWkt(&pszWKT);
     360        8850 :         auto poRootBackup = m_poRoot;
     361        8850 :         m_poRoot = nullptr;
     362        8850 :         const double dfCoordinateEpochBackup = m_coordinateEpoch;
     363        8850 :         clear();
     364        8850 :         m_coordinateEpoch = dfCoordinateEpochBackup;
     365        8850 :         m_bHasCenterLong = strstr(pszWKT, "CENTER_LONG") != nullptr;
     366             : 
     367        8850 :         const char *const options[] = {
     368             :             "STRICT=NO",
     369             : #if PROJ_AT_LEAST_VERSION(9, 1, 0)
     370             :             "UNSET_IDENTIFIERS_IF_INCOMPATIBLE_DEF=NO",
     371             : #endif
     372             :             nullptr};
     373        8850 :         PROJ_STRING_LIST warnings = nullptr;
     374        8850 :         PROJ_STRING_LIST errors = nullptr;
     375        8850 :         setPjCRS(proj_create_from_wkt(getPROJContext(), pszWKT, options,
     376             :                                       &warnings, &errors));
     377       17316 :         for (auto iter = warnings; iter && *iter; ++iter)
     378             :         {
     379        8466 :             m_wktImportWarnings.push_back(*iter);
     380             :         }
     381        9066 :         for (auto iter = errors; iter && *iter; ++iter)
     382             :         {
     383         216 :             m_wktImportErrors.push_back(*iter);
     384             :         }
     385        8850 :         proj_string_list_destroy(warnings);
     386        8850 :         proj_string_list_destroy(errors);
     387             : 
     388        8850 :         CPLFree(pszWKT);
     389             : 
     390        8850 :         m_poRoot = poRootBackup;
     391        8850 :         m_bNodesChanged = false;
     392             :     }
     393      791889 : }
     394             : 
     395       31846 : void OGRSpatialReference::Private::refreshRootFromProjObj(bool bForceWKT2)
     396             : {
     397       31846 :     CPLAssert(m_poRoot == nullptr);
     398             : 
     399       31846 :     if (m_pj_crs)
     400             :     {
     401       59350 :         CPLStringList aosOptions;
     402       29675 :         if (!m_bMorphToESRI)
     403             :         {
     404       29671 :             aosOptions.SetNameValue("OUTPUT_AXIS", "YES");
     405       29671 :             aosOptions.SetNameValue("MULTILINE", "NO");
     406             :         }
     407       29675 :         aosOptions.SetNameValue("STRICT", "NO");
     408             : 
     409       29675 :         const char *pszWKT = nullptr;
     410       29675 :         if (!bForceWKT2)
     411             :         {
     412       29662 :             CPLErrorStateBackuper oErrorStateBackuper(CPLQuietErrorHandler);
     413       29662 :             pszWKT = proj_as_wkt(getPROJContext(), m_pj_crs,
     414       29662 :                                  m_bMorphToESRI ? PJ_WKT1_ESRI : PJ_WKT1_GDAL,
     415       29662 :                                  aosOptions.List());
     416       29662 :             m_bNodesWKT2 = false;
     417             :         }
     418       29675 :         if (!m_bMorphToESRI && pszWKT == nullptr)
     419             :         {
     420         109 :             pszWKT = proj_as_wkt(getPROJContext(), m_pj_crs, PJ_WKT2_2018,
     421         109 :                                  aosOptions.List());
     422         109 :             m_bNodesWKT2 = true;
     423             :         }
     424       29675 :         if (pszWKT)
     425             :         {
     426       29675 :             auto root = new OGR_SRSNode();
     427       29675 :             setRoot(root);
     428       29675 :             root->importFromWkt(&pszWKT);
     429       29675 :             m_bNodesChanged = false;
     430             :         }
     431             :     }
     432       31846 : }
     433             : 
     434      228252 : static bool isNorthEastAxisOrder(PJ_CONTEXT *ctx, PJ *cs)
     435             : {
     436      228252 :     const char *pszName1 = nullptr;
     437      228252 :     const char *pszDirection1 = nullptr;
     438      228252 :     proj_cs_get_axis_info(ctx, cs, 0, &pszName1, nullptr, &pszDirection1,
     439             :                           nullptr, nullptr, nullptr, nullptr);
     440      228252 :     const char *pszName2 = nullptr;
     441      228252 :     const char *pszDirection2 = nullptr;
     442      228252 :     proj_cs_get_axis_info(ctx, cs, 1, &pszName2, nullptr, &pszDirection2,
     443             :                           nullptr, nullptr, nullptr, nullptr);
     444      228252 :     if (pszDirection1 && EQUAL(pszDirection1, "north") && pszDirection2 &&
     445      100850 :         EQUAL(pszDirection2, "east"))
     446             :     {
     447       99271 :         return true;
     448             :     }
     449      128981 :     if (pszDirection1 && pszDirection2 &&
     450      128981 :         ((EQUAL(pszDirection1, "north") && EQUAL(pszDirection2, "north")) ||
     451      127419 :          (EQUAL(pszDirection1, "south") && EQUAL(pszDirection2, "south"))) &&
     452        3261 :         pszName1 && STARTS_WITH_CI(pszName1, "northing") && pszName2 &&
     453        1320 :         STARTS_WITH_CI(pszName2, "easting"))
     454             :     {
     455        1320 :         return true;
     456             :     }
     457      127661 :     return false;
     458             : }
     459             : 
     460      288200 : void OGRSpatialReference::Private::refreshAxisMapping()
     461             : {
     462      288200 :     if (!m_pj_crs || m_axisMappingStrategy == OAMS_CUSTOM)
     463       60601 :         return;
     464             : 
     465      227599 :     bool doUndoDemote = false;
     466      227599 :     if (m_pj_crs_backup == nullptr)
     467             :     {
     468      227578 :         doUndoDemote = true;
     469      227578 :         demoteFromBoundCRS();
     470             :     }
     471      227599 :     const auto ctxt = getPROJContext();
     472      227599 :     PJ *horizCRS = nullptr;
     473      227599 :     int axisCount = 0;
     474      227599 :     if (m_pjType == PJ_TYPE_VERTICAL_CRS)
     475             :     {
     476         218 :         axisCount = 1;
     477             :     }
     478      227381 :     else if (m_pjType == PJ_TYPE_COMPOUND_CRS)
     479             :     {
     480        1101 :         horizCRS = proj_crs_get_sub_crs(ctxt, m_pj_crs, 0);
     481        1101 :         if (horizCRS && proj_get_type(horizCRS) == PJ_TYPE_BOUND_CRS)
     482             :         {
     483         222 :             auto baseCRS = proj_get_source_crs(ctxt, horizCRS);
     484         222 :             if (baseCRS)
     485             :             {
     486         222 :                 proj_destroy(horizCRS);
     487         222 :                 horizCRS = baseCRS;
     488             :             }
     489             :         }
     490             : 
     491        1101 :         auto vertCRS = proj_crs_get_sub_crs(ctxt, m_pj_crs, 1);
     492        1101 :         if (vertCRS)
     493             :         {
     494        1098 :             if (proj_get_type(vertCRS) == PJ_TYPE_BOUND_CRS)
     495             :             {
     496         398 :                 auto baseCRS = proj_get_source_crs(ctxt, vertCRS);
     497         398 :                 if (baseCRS)
     498             :                 {
     499         398 :                     proj_destroy(vertCRS);
     500         398 :                     vertCRS = baseCRS;
     501             :                 }
     502             :             }
     503             : 
     504        1098 :             auto cs = proj_crs_get_coordinate_system(ctxt, vertCRS);
     505        1098 :             if (cs)
     506             :             {
     507        1098 :                 axisCount += proj_cs_get_axis_count(ctxt, cs);
     508        1098 :                 proj_destroy(cs);
     509             :             }
     510        1098 :             proj_destroy(vertCRS);
     511             :         }
     512             :     }
     513             :     else
     514             :     {
     515      226280 :         horizCRS = m_pj_crs;
     516             :     }
     517             : 
     518      227599 :     bool bSwitchForGisFriendlyOrder = false;
     519      227599 :     if (horizCRS)
     520             :     {
     521      227378 :         auto cs = proj_crs_get_coordinate_system(ctxt, horizCRS);
     522      227378 :         if (cs)
     523             :         {
     524      227378 :             int nHorizCSAxisCount = proj_cs_get_axis_count(ctxt, cs);
     525      227378 :             axisCount += nHorizCSAxisCount;
     526      227378 :             if (nHorizCSAxisCount >= 2)
     527             :             {
     528      227368 :                 bSwitchForGisFriendlyOrder = isNorthEastAxisOrder(ctxt, cs);
     529             :             }
     530      227378 :             proj_destroy(cs);
     531             :         }
     532             :     }
     533      227599 :     if (horizCRS != m_pj_crs)
     534             :     {
     535        1319 :         proj_destroy(horizCRS);
     536             :     }
     537      227599 :     if (doUndoDemote)
     538             :     {
     539      227578 :         undoDemoteFromBoundCRS();
     540             :     }
     541             : 
     542      227599 :     m_axisMapping.resize(axisCount);
     543      227599 :     if (m_axisMappingStrategy == OAMS_AUTHORITY_COMPLIANT ||
     544       68055 :         !bSwitchForGisFriendlyOrder)
     545             :     {
     546      590810 :         for (int i = 0; i < axisCount; i++)
     547             :         {
     548      394388 :             m_axisMapping[i] = i + 1;
     549      196422 :         }
     550             :     }
     551             :     else
     552             :     {
     553       31177 :         m_axisMapping[0] = 2;
     554       31177 :         m_axisMapping[1] = 1;
     555       31177 :         if (axisCount == 3)
     556             :         {
     557         415 :             m_axisMapping[2] = 3;
     558             :         }
     559             :     }
     560             : }
     561             : 
     562     2411030 : void OGRSpatialReference::Private::nodesChanged()
     563             : {
     564     2411030 :     m_bNodesChanged = true;
     565     2411030 : }
     566             : 
     567      195543 : void OGRSpatialReference::Private::invalidateNodes()
     568             : {
     569      195543 :     delete m_poRoot;
     570      195543 :     m_poRoot = nullptr;
     571      195543 :     m_bNodesChanged = false;
     572      195543 : }
     573             : 
     574         256 : void OGRSpatialReference::Private::setMorphToESRI(bool b)
     575             : {
     576         256 :     invalidateNodes();
     577         256 :     m_bMorphToESRI = b;
     578         256 : }
     579             : 
     580      670462 : void OGRSpatialReference::Private::demoteFromBoundCRS()
     581             : {
     582      670462 :     CPLAssert(m_pj_bound_crs_target == nullptr);
     583      670462 :     CPLAssert(m_pj_bound_crs_co == nullptr);
     584      670462 :     CPLAssert(m_poRootBackup == nullptr);
     585      670462 :     CPLAssert(m_pj_crs_backup == nullptr);
     586             : 
     587      670462 :     m_pj_crs_modified_during_demote = false;
     588             : 
     589      670462 :     if (m_pjType == PJ_TYPE_BOUND_CRS)
     590             :     {
     591        2752 :         auto baseCRS = proj_get_source_crs(getPROJContext(), m_pj_crs);
     592        2752 :         m_pj_bound_crs_target = proj_get_target_crs(getPROJContext(), m_pj_crs);
     593        2752 :         m_pj_bound_crs_co =
     594        2752 :             proj_crs_get_coordoperation(getPROJContext(), m_pj_crs);
     595             : 
     596        2752 :         m_poRootBackup = m_poRoot;
     597        2752 :         m_poRoot = nullptr;
     598        2752 :         m_pj_crs_backup = m_pj_crs;
     599        2752 :         m_pj_crs = baseCRS;
     600        2752 :         m_pjType = proj_get_type(m_pj_crs);
     601             :     }
     602      670462 : }
     603             : 
     604      670462 : void OGRSpatialReference::Private::undoDemoteFromBoundCRS()
     605             : {
     606      670462 :     if (m_pj_bound_crs_target)
     607             :     {
     608        2752 :         CPLAssert(m_poRoot == nullptr);
     609        2752 :         CPLAssert(m_pj_crs);
     610        2752 :         if (!m_pj_crs_modified_during_demote)
     611             :         {
     612        2732 :             proj_destroy(m_pj_crs);
     613        2732 :             m_pj_crs = m_pj_crs_backup;
     614        2732 :             m_pjType = proj_get_type(m_pj_crs);
     615        2732 :             m_poRoot = m_poRootBackup;
     616             :         }
     617             :         else
     618             :         {
     619          20 :             delete m_poRootBackup;
     620          20 :             m_poRootBackup = nullptr;
     621          20 :             proj_destroy(m_pj_crs_backup);
     622          20 :             m_pj_crs_backup = nullptr;
     623          20 :             setPjCRS(proj_crs_create_bound_crs(getPROJContext(), m_pj_crs,
     624          20 :                                                m_pj_bound_crs_target,
     625          20 :                                                m_pj_bound_crs_co),
     626             :                      false);
     627             :         }
     628             :     }
     629             : 
     630      670462 :     m_poRootBackup = nullptr;
     631      670462 :     m_pj_crs_backup = nullptr;
     632      670462 :     proj_destroy(m_pj_bound_crs_target);
     633      670462 :     m_pj_bound_crs_target = nullptr;
     634      670462 :     proj_destroy(m_pj_bound_crs_co);
     635      670462 :     m_pj_bound_crs_co = nullptr;
     636      670462 :     m_pj_crs_modified_during_demote = false;
     637      670462 : }
     638             : 
     639      170088 : const char *OGRSpatialReference::Private::nullifyTargetKeyIfPossible(
     640             :     const char *pszTargetKey)
     641             : {
     642      170088 :     if (pszTargetKey)
     643             :     {
     644       61471 :         demoteFromBoundCRS();
     645       61471 :         if ((m_pjType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
     646       32325 :              m_pjType == PJ_TYPE_GEOGRAPHIC_3D_CRS) &&
     647       29224 :             EQUAL(pszTargetKey, "GEOGCS"))
     648             :         {
     649        7190 :             pszTargetKey = nullptr;
     650             :         }
     651       54281 :         else if (m_pjType == PJ_TYPE_GEOCENTRIC_CRS &&
     652          20 :                  EQUAL(pszTargetKey, "GEOCCS"))
     653             :         {
     654           0 :             pszTargetKey = nullptr;
     655             :         }
     656       54281 :         else if (m_pjType == PJ_TYPE_PROJECTED_CRS &&
     657       30936 :                  EQUAL(pszTargetKey, "PROJCS"))
     658             :         {
     659        4538 :             pszTargetKey = nullptr;
     660             :         }
     661       49743 :         else if (m_pjType == PJ_TYPE_VERTICAL_CRS &&
     662           4 :                  EQUAL(pszTargetKey, "VERT_CS"))
     663             :         {
     664           2 :             pszTargetKey = nullptr;
     665             :         }
     666       61471 :         undoDemoteFromBoundCRS();
     667             :     }
     668      170088 :     return pszTargetKey;
     669             : }
     670             : 
     671        9876 : PJ *OGRSpatialReference::Private::getGeodBaseCRS()
     672             : {
     673        9876 :     if (m_pjType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
     674        9823 :         m_pjType == PJ_TYPE_GEOGRAPHIC_3D_CRS)
     675             :     {
     676          53 :         return m_pj_crs;
     677             :     }
     678             : 
     679        9823 :     auto ctxt = getPROJContext();
     680        9823 :     if (m_pjType == PJ_TYPE_PROJECTED_CRS)
     681             :     {
     682        4532 :         proj_assign_context(m_pj_geod_base_crs_temp, ctxt);
     683        4532 :         proj_destroy(m_pj_geod_base_crs_temp);
     684        4532 :         m_pj_geod_base_crs_temp = proj_crs_get_geodetic_crs(ctxt, m_pj_crs);
     685        4532 :         return m_pj_geod_base_crs_temp;
     686             :     }
     687             : 
     688        5291 :     proj_assign_context(m_pj_geod_base_crs_temp, ctxt);
     689        5291 :     proj_destroy(m_pj_geod_base_crs_temp);
     690        5291 :     auto cs = proj_create_ellipsoidal_2D_cs(ctxt, PJ_ELLPS2D_LATITUDE_LONGITUDE,
     691             :                                             nullptr, 0);
     692        5291 :     m_pj_geod_base_crs_temp = proj_create_geographic_crs(
     693             :         ctxt, "WGS 84", "World Geodetic System 1984", "WGS 84",
     694             :         SRS_WGS84_SEMIMAJOR, SRS_WGS84_INVFLATTENING, SRS_PM_GREENWICH, 0.0,
     695             :         SRS_UA_DEGREE, CPLAtof(SRS_UA_DEGREE_CONV), cs);
     696        5291 :     proj_destroy(cs);
     697             : 
     698        5291 :     return m_pj_geod_base_crs_temp;
     699             : }
     700             : 
     701        5493 : PJ *OGRSpatialReference::Private::getProjCRSCoordSys()
     702             : {
     703        5493 :     auto ctxt = getPROJContext();
     704        5493 :     if (m_pjType == PJ_TYPE_PROJECTED_CRS)
     705             :     {
     706        4518 :         proj_assign_context(m_pj_proj_crs_cs_temp, ctxt);
     707        4518 :         proj_destroy(m_pj_proj_crs_cs_temp);
     708        4518 :         m_pj_proj_crs_cs_temp =
     709        4518 :             proj_crs_get_coordinate_system(getPROJContext(), m_pj_crs);
     710        4518 :         return m_pj_proj_crs_cs_temp;
     711             :     }
     712             : 
     713         975 :     proj_assign_context(m_pj_proj_crs_cs_temp, ctxt);
     714         975 :     proj_destroy(m_pj_proj_crs_cs_temp);
     715         975 :     m_pj_proj_crs_cs_temp = proj_create_cartesian_2D_cs(
     716             :         ctxt, PJ_CART2D_EASTING_NORTHING, nullptr, 0);
     717         975 :     return m_pj_proj_crs_cs_temp;
     718             : }
     719             : 
     720        5544 : const char *OGRSpatialReference::Private::getProjCRSName()
     721             : {
     722        5544 :     if (m_pjType == PJ_TYPE_PROJECTED_CRS)
     723             :     {
     724        4533 :         return proj_get_name(m_pj_crs);
     725             :     }
     726             : 
     727        1011 :     return "unnamed";
     728             : }
     729             : 
     730        1384 : OGRErr OGRSpatialReference::Private::replaceConversionAndUnref(PJ *conv)
     731             : {
     732        1384 :     refreshProjObj();
     733             : 
     734        1384 :     demoteFromBoundCRS();
     735             : 
     736             :     auto projCRS =
     737        1384 :         proj_create_projected_crs(getPROJContext(), getProjCRSName(),
     738        1384 :                                   getGeodBaseCRS(), conv, getProjCRSCoordSys());
     739        1384 :     proj_destroy(conv);
     740             : 
     741        1384 :     setPjCRS(projCRS);
     742             : 
     743        1384 :     undoDemoteFromBoundCRS();
     744        1384 :     return OGRERR_NONE;
     745             : }
     746             : 
     747             : /************************************************************************/
     748             : /*                             ToPointer()                              */
     749             : /************************************************************************/
     750             : 
     751       27104 : static inline OGRSpatialReference *ToPointer(OGRSpatialReferenceH hSRS)
     752             : {
     753       27104 :     return OGRSpatialReference::FromHandle(hSRS);
     754             : }
     755             : 
     756             : /************************************************************************/
     757             : /*                              ToHandle()                              */
     758             : /************************************************************************/
     759             : 
     760        4823 : static inline OGRSpatialReferenceH ToHandle(OGRSpatialReference *poSRS)
     761             : {
     762        4823 :     return OGRSpatialReference::ToHandle(poSRS);
     763             : }
     764             : 
     765             : /************************************************************************/
     766             : /*                          OGRsnPrintDouble()                          */
     767             : /************************************************************************/
     768             : 
     769             : void OGRsnPrintDouble(char *pszStrBuf, size_t size, double dfValue);
     770             : 
     771         126 : void OGRsnPrintDouble(char *pszStrBuf, size_t size, double dfValue)
     772             : 
     773             : {
     774         126 :     CPLsnprintf(pszStrBuf, size, "%.16g", dfValue);
     775             : 
     776         126 :     const size_t nLen = strlen(pszStrBuf);
     777             : 
     778             :     // The following hack is intended to truncate some "precision" in cases
     779             :     // that appear to be roundoff error.
     780         126 :     if (nLen > 15 && (strcmp(pszStrBuf + nLen - 6, "999999") == 0 ||
     781           8 :                       strcmp(pszStrBuf + nLen - 6, "000001") == 0))
     782             :     {
     783           0 :         CPLsnprintf(pszStrBuf, size, "%.15g", dfValue);
     784             :     }
     785             : 
     786             :     // Force to user periods regardless of locale.
     787         126 :     if (strchr(pszStrBuf, ',') != nullptr)
     788             :     {
     789           0 :         char *const pszDelim = strchr(pszStrBuf, ',');
     790           0 :         *pszDelim = '.';
     791             :     }
     792         126 : }
     793             : 
     794             : /************************************************************************/
     795             : /*                        OGRSpatialReference()                         */
     796             : /************************************************************************/
     797             : 
     798             : /**
     799             :  * \brief Constructor.
     800             :  *
     801             :  * This constructor takes an optional string argument which if passed
     802             :  * should be a WKT representation of an SRS.  Passing this is equivalent
     803             :  * to not passing it, and then calling importFromWkt() with the WKT string.
     804             :  *
     805             :  * Note that newly created objects are given a reference count of one.
     806             :  *
     807             :  * Starting with GDAL 3.0, coordinates associated with a OGRSpatialReference
     808             :  * object are assumed to be in the order of the axis of the CRS definition
     809             :  (which
     810             :  * for example means latitude first, longitude second for geographic CRS
     811             :  belonging
     812             :  * to the EPSG authority). It is possible to define a data axis to CRS axis
     813             :  * mapping strategy with the SetAxisMappingStrategy() method.
     814             :  *
     815             :  * Starting with GDAL 3.5, the OSR_DEFAULT_AXIS_MAPPING_STRATEGY configuration
     816             :  * option can be set to "TRADITIONAL_GIS_ORDER" / "AUTHORITY_COMPLIANT" (the
     817             :  later
     818             :  * being the default value when the option is not set) to control the value of
     819             :  the
     820             :  * data axis to CRS axis mapping strategy when a OSRSpatialReference object is
     821             :  * created. Calling SetAxisMappingStrategy() will override this default value.
     822             : 
     823             :  * The C function OSRNewSpatialReference() does the same thing as this
     824             :  * constructor.
     825             :  *
     826             :  * @param pszWKT well known text definition to which the object should
     827             :  * be initialized, or NULL (the default).
     828             :  */
     829             : 
     830      266181 : OGRSpatialReference::OGRSpatialReference(const char *pszWKT)
     831      266181 :     : d(new Private(this))
     832             : {
     833      266181 :     if (pszWKT != nullptr)
     834        1101 :         importFromWkt(pszWKT);
     835      266181 : }
     836             : 
     837             : /************************************************************************/
     838             : /*                       OSRNewSpatialReference()                       */
     839             : /************************************************************************/
     840             : 
     841             : /**
     842             :  * \brief Constructor.
     843             :  *
     844             :  * Starting with GDAL 3.0, coordinates associated with a OGRSpatialReference
     845             :  * object are assumed to be in the order of the axis of the CRS definition
     846             :  * (which for example means latitude first, longitude second for geographic CRS
     847             :  * belonging to the EPSG authority). It is possible to define a data axis to CRS
     848             :  * axis mapping strategy with the SetAxisMappingStrategy() method.
     849             :  *
     850             :  * Starting with GDAL 3.5, the OSR_DEFAULT_AXIS_MAPPING_STRATEGY configuration
     851             :  * option can be set to "TRADITIONAL_GIS_ORDER" / "AUTHORITY_COMPLIANT" (the
     852             :  * later being the default value when the option is not set) to control the
     853             :  * value of the data axis to CRS axis mapping strategy when a
     854             :  * OSRSpatialReference object is created. Calling SetAxisMappingStrategy() will
     855             :  * override this default value.
     856             :  *
     857             :  * This function is the same as OGRSpatialReference::OGRSpatialReference()
     858             :  */
     859        3340 : OGRSpatialReferenceH CPL_STDCALL OSRNewSpatialReference(const char *pszWKT)
     860             : 
     861             : {
     862        3340 :     OGRSpatialReference *poSRS = new OGRSpatialReference();
     863             : 
     864        3340 :     if (pszWKT != nullptr && strlen(pszWKT) > 0)
     865             :     {
     866          65 :         if (poSRS->importFromWkt(pszWKT) != OGRERR_NONE)
     867             :         {
     868           0 :             delete poSRS;
     869           0 :             poSRS = nullptr;
     870             :         }
     871             :     }
     872             : 
     873        3340 :     return ToHandle(poSRS);
     874             : }
     875             : 
     876             : /************************************************************************/
     877             : /*                        OGRSpatialReference()                         */
     878             : /************************************************************************/
     879             : 
     880             : /** Copy constructor. See also Clone().
     881             :  * @param oOther other spatial reference
     882             :  */
     883        2633 : OGRSpatialReference::OGRSpatialReference(const OGRSpatialReference &oOther)
     884        2633 :     : d(new Private(this))
     885             : {
     886        2633 :     *this = oOther;
     887        2633 : }
     888             : 
     889             : /************************************************************************/
     890             : /*                        OGRSpatialReference()                         */
     891             : /************************************************************************/
     892             : 
     893             : /** Move constructor.
     894             :  * @param oOther other spatial reference
     895             :  */
     896           1 : OGRSpatialReference::OGRSpatialReference(OGRSpatialReference &&oOther)
     897           1 :     : d(std::move(oOther.d))
     898             : {
     899           1 : }
     900             : 
     901             : /************************************************************************/
     902             : /*                        ~OGRSpatialReference()                        */
     903             : /************************************************************************/
     904             : 
     905             : /**
     906             :  * \brief OGRSpatialReference destructor.
     907             :  *
     908             :  * The C function OSRDestroySpatialReference() does the same thing as this
     909             :  * method. Preferred C++ method : OGRSpatialReference::DestroySpatialReference()
     910             :  *
     911             :  * @deprecated
     912             :  */
     913             : 
     914      325551 : OGRSpatialReference::~OGRSpatialReference()
     915             : 
     916             : {
     917      325551 : }
     918             : 
     919             : /************************************************************************/
     920             : /*                      DestroySpatialReference()                       */
     921             : /************************************************************************/
     922             : 
     923             : /**
     924             :  * \brief OGRSpatialReference destructor.
     925             :  *
     926             :  * This static method will destroy a OGRSpatialReference.  It is
     927             :  * equivalent to calling delete on the object, but it ensures that the
     928             :  * deallocation is properly executed within the OGR libraries heap on
     929             :  * platforms where this can matter (win32).
     930             :  *
     931             :  * This function is the same as OSRDestroySpatialReference()
     932             :  *
     933             :  * @param poSRS the object to delete
     934             :  *
     935             :  */
     936             : 
     937           0 : void OGRSpatialReference::DestroySpatialReference(OGRSpatialReference *poSRS)
     938             : {
     939           0 :     delete poSRS;
     940           0 : }
     941             : 
     942             : /************************************************************************/
     943             : /*                     OSRDestroySpatialReference()                     */
     944             : /************************************************************************/
     945             : 
     946             : /**
     947             :  * \brief OGRSpatialReference destructor.
     948             :  *
     949             :  * This function is the same as OGRSpatialReference::~OGRSpatialReference()
     950             :  * and OGRSpatialReference::DestroySpatialReference()
     951             :  *
     952             :  * @param hSRS the object to delete
     953             :  */
     954        9681 : void CPL_STDCALL OSRDestroySpatialReference(OGRSpatialReferenceH hSRS)
     955             : 
     956             : {
     957        9681 :     delete ToPointer(hSRS);
     958        9681 : }
     959             : 
     960             : /************************************************************************/
     961             : /*                               Clear()                                */
     962             : /************************************************************************/
     963             : 
     964             : /**
     965             :  * \brief Wipe current definition.
     966             :  *
     967             :  * Returns OGRSpatialReference to a state with no definition, as it
     968             :  * exists when first created.  It does not affect reference counts.
     969             :  */
     970             : 
     971      123852 : void OGRSpatialReference::Clear()
     972             : 
     973             : {
     974      123852 :     d->clear();
     975      123852 : }
     976             : 
     977             : /************************************************************************/
     978             : /*                             operator=()                              */
     979             : /************************************************************************/
     980             : 
     981             : /** Assignment operator.
     982             :  * @param oSource SRS to assign to *this
     983             :  * @return *this
     984             :  */
     985             : OGRSpatialReference &
     986       28049 : OGRSpatialReference::operator=(const OGRSpatialReference &oSource)
     987             : 
     988             : {
     989       28049 :     if (&oSource != this)
     990             :     {
     991       28048 :         Clear();
     992             : #ifdef CPPCHECK
     993             :         // Otherwise cppcheck would protest that nRefCount isn't modified
     994             :         d->nRefCount = (d->nRefCount + 1) - 1;
     995             : #endif
     996             : 
     997       28048 :         oSource.d->refreshProjObj();
     998       28048 :         if (oSource.d->m_pj_crs)
     999       27603 :             d->setPjCRS(proj_clone(d->getPROJContext(), oSource.d->m_pj_crs));
    1000       28048 :         if (oSource.d->m_axisMappingStrategy == OAMS_TRADITIONAL_GIS_ORDER)
    1001       13264 :             SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
    1002       14784 :         else if (oSource.d->m_axisMappingStrategy == OAMS_CUSTOM)
    1003         124 :             SetDataAxisToSRSAxisMapping(oSource.d->m_axisMapping);
    1004             : 
    1005       28048 :         d->m_coordinateEpoch = oSource.d->m_coordinateEpoch;
    1006             :     }
    1007             : 
    1008       28049 :     return *this;
    1009             : }
    1010             : 
    1011             : /************************************************************************/
    1012             : /*                             operator=()                              */
    1013             : /************************************************************************/
    1014             : 
    1015             : /** Move assignment operator.
    1016             :  * @param oSource SRS to assign to *this
    1017             :  * @return *this
    1018             :  */
    1019             : OGRSpatialReference &
    1020        4857 : OGRSpatialReference::operator=(OGRSpatialReference &&oSource)
    1021             : 
    1022             : {
    1023        4857 :     if (&oSource != this)
    1024             :     {
    1025        4856 :         d = std::move(oSource.d);
    1026             :     }
    1027             : 
    1028        4857 :     return *this;
    1029             : }
    1030             : 
    1031             : /************************************************************************/
    1032             : /*                       AssignAndSetThreadSafe()                       */
    1033             : /************************************************************************/
    1034             : 
    1035             : /** Assignment method, with thread-safety.
    1036             :  *
    1037             :  * Same as an assignment operator, but asking also that the *this instance
    1038             :  * becomes thread-safe.
    1039             :  *
    1040             :  * @param oSource SRS to assign to *this
    1041             :  * @return *this
    1042             :  * @since 3.10
    1043             :  */
    1044             : 
    1045             : OGRSpatialReference &
    1046           2 : OGRSpatialReference::AssignAndSetThreadSafe(const OGRSpatialReference &oSource)
    1047             : {
    1048           2 :     *this = oSource;
    1049           2 :     d->SetThreadSafe();
    1050           2 :     return *this;
    1051             : }
    1052             : 
    1053             : /************************************************************************/
    1054             : /*                             Reference()                              */
    1055             : /************************************************************************/
    1056             : 
    1057             : /**
    1058             :  * \brief Increments the reference count by one.
    1059             :  *
    1060             :  * The reference count is used keep track of the number of OGRGeometry objects
    1061             :  * referencing this SRS.
    1062             :  *
    1063             :  * The method does the same thing as the C function OSRReference().
    1064             :  *
    1065             :  * @return the updated reference count.
    1066             :  */
    1067             : 
    1068     3647050 : int OGRSpatialReference::Reference()
    1069             : 
    1070             : {
    1071     3647050 :     return CPLAtomicInc(&d->nRefCount);
    1072             : }
    1073             : 
    1074             : /************************************************************************/
    1075             : /*                            OSRReference()                            */
    1076             : /************************************************************************/
    1077             : 
    1078             : /**
    1079             :  * \brief Increments the reference count by one.
    1080             :  *
    1081             :  * This function is the same as OGRSpatialReference::Reference()
    1082             :  */
    1083        1027 : int OSRReference(OGRSpatialReferenceH hSRS)
    1084             : 
    1085             : {
    1086        1027 :     VALIDATE_POINTER1(hSRS, "OSRReference", 0);
    1087             : 
    1088        1027 :     return ToPointer(hSRS)->Reference();
    1089             : }
    1090             : 
    1091             : /************************************************************************/
    1092             : /*                            Dereference()                             */
    1093             : /************************************************************************/
    1094             : 
    1095             : /**
    1096             :  * \brief Decrements the reference count by one.
    1097             :  *
    1098             :  * The method does the same thing as the C function OSRDereference().
    1099             :  *
    1100             :  * @return the updated reference count.
    1101             :  */
    1102             : 
    1103     3688420 : int OGRSpatialReference::Dereference()
    1104             : 
    1105             : {
    1106     3688420 :     if (d->nRefCount <= 0)
    1107           0 :         CPLDebug("OSR",
    1108             :                  "Dereference() called on an object with refcount %d,"
    1109             :                  "likely already destroyed!",
    1110           0 :                  d->nRefCount);
    1111     3688420 :     return CPLAtomicDec(&d->nRefCount);
    1112             : }
    1113             : 
    1114             : /************************************************************************/
    1115             : /*                           OSRDereference()                           */
    1116             : /************************************************************************/
    1117             : 
    1118             : /**
    1119             :  * \brief Decrements the reference count by one.
    1120             :  *
    1121             :  * This function is the same as OGRSpatialReference::Dereference()
    1122             :  */
    1123           0 : int OSRDereference(OGRSpatialReferenceH hSRS)
    1124             : 
    1125             : {
    1126           0 :     VALIDATE_POINTER1(hSRS, "OSRDereference", 0);
    1127             : 
    1128           0 :     return ToPointer(hSRS)->Dereference();
    1129             : }
    1130             : 
    1131             : /************************************************************************/
    1132             : /*                         GetReferenceCount()                          */
    1133             : /************************************************************************/
    1134             : 
    1135             : /**
    1136             :  * \brief Fetch current reference count.
    1137             :  *
    1138             :  * @return the current reference count.
    1139             :  */
    1140         180 : int OGRSpatialReference::GetReferenceCount() const
    1141             : {
    1142         180 :     return d->nRefCount;
    1143             : }
    1144             : 
    1145             : /************************************************************************/
    1146             : /*                              Release()                               */
    1147             : /************************************************************************/
    1148             : 
    1149             : /**
    1150             :  * \brief Decrements the reference count by one, and destroy if zero.
    1151             :  *
    1152             :  * The method does the same thing as the C function OSRRelease().
    1153             :  */
    1154             : 
    1155     3688160 : void OGRSpatialReference::Release()
    1156             : 
    1157             : {
    1158     3688160 :     if (Dereference() <= 0)
    1159       41311 :         delete this;
    1160     3688160 : }
    1161             : 
    1162             : /************************************************************************/
    1163             : /*                             OSRRelease()                             */
    1164             : /************************************************************************/
    1165             : 
    1166             : /**
    1167             :  * \brief Decrements the reference count by one, and destroy if zero.
    1168             :  *
    1169             :  * This function is the same as OGRSpatialReference::Release()
    1170             :  */
    1171        6772 : void OSRRelease(OGRSpatialReferenceH hSRS)
    1172             : 
    1173             : {
    1174        6772 :     VALIDATE_POINTER0(hSRS, "OSRRelease");
    1175             : 
    1176        6772 :     ToPointer(hSRS)->Release();
    1177             : }
    1178             : 
    1179       94011 : OGR_SRSNode *OGRSpatialReference::GetRoot()
    1180             : {
    1181       94011 :     TAKE_OPTIONAL_LOCK();
    1182             : 
    1183       94011 :     if (!d->m_poRoot)
    1184             :     {
    1185       28534 :         d->refreshRootFromProjObj(false);
    1186             :     }
    1187      188022 :     return d->m_poRoot;
    1188             : }
    1189             : 
    1190        8654 : const OGR_SRSNode *OGRSpatialReference::GetRoot() const
    1191             : {
    1192        8654 :     TAKE_OPTIONAL_LOCK();
    1193             : 
    1194        8654 :     if (!d->m_poRoot)
    1195             :     {
    1196        3299 :         d->refreshRootFromProjObj(false);
    1197             :     }
    1198       17308 :     return d->m_poRoot;
    1199             : }
    1200             : 
    1201             : /************************************************************************/
    1202             : /*                              SetRoot()                               */
    1203             : /************************************************************************/
    1204             : 
    1205             : /**
    1206             :  * \brief Set the root SRS node.
    1207             :  *
    1208             :  * If the object has an existing tree of OGR_SRSNodes, they are destroyed
    1209             :  * as part of assigning the new root.  Ownership of the passed OGR_SRSNode is
    1210             :  * is assumed by the OGRSpatialReference.
    1211             :  *
    1212             :  * @param poNewRoot object to assign as root.
    1213             :  */
    1214             : 
    1215          44 : void OGRSpatialReference::SetRoot(OGR_SRSNode *poNewRoot)
    1216             : 
    1217             : {
    1218          44 :     if (d->m_poRoot != poNewRoot)
    1219             :     {
    1220          44 :         delete d->m_poRoot;
    1221          44 :         d->setRoot(poNewRoot);
    1222             :     }
    1223          44 : }
    1224             : 
    1225             : /************************************************************************/
    1226             : /*                            GetAttrNode()                             */
    1227             : /************************************************************************/
    1228             : 
    1229             : /**
    1230             :  * \brief Find named node in tree.
    1231             :  *
    1232             :  * This method does a pre-order traversal of the node tree searching for
    1233             :  * a node with this exact value (case insensitive), and returns it.  Leaf
    1234             :  * nodes are not considered, under the assumption that they are just
    1235             :  * attribute value nodes.
    1236             :  *
    1237             :  * If a node appears more than once in the tree (such as UNIT for instance),
    1238             :  * the first encountered will be returned.  Use GetNode() on a subtree to be
    1239             :  * more specific.
    1240             :  *
    1241             :  * @param pszNodePath the name of the node to search for.  May contain multiple
    1242             :  * components such as "GEOGCS|UNIT".
    1243             :  *
    1244             :  * @return a pointer to the node found, or NULL if none.
    1245             :  */
    1246             : 
    1247       90877 : OGR_SRSNode *OGRSpatialReference::GetAttrNode(const char *pszNodePath)
    1248             : 
    1249             : {
    1250       90877 :     if (strstr(pszNodePath, "CONVERSION") && !d->m_bNodesWKT2)
    1251             :     {
    1252          13 :         d->invalidateNodes();
    1253          13 :         d->refreshRootFromProjObj(/* bForceWKT2 = */ true);
    1254             :     }
    1255             : 
    1256       90877 :     if (strchr(pszNodePath, '|') == nullptr)
    1257             :     {
    1258             :         // Fast path
    1259       50521 :         OGR_SRSNode *poNode = GetRoot();
    1260       50521 :         if (poNode)
    1261       49314 :             poNode = poNode->GetNode(pszNodePath);
    1262       50521 :         return poNode;
    1263             :     }
    1264             : 
    1265             :     char **papszPathTokens =
    1266       40356 :         CSLTokenizeStringComplex(pszNodePath, "|", TRUE, FALSE);
    1267             : 
    1268       40356 :     if (CSLCount(papszPathTokens) < 1)
    1269             :     {
    1270           0 :         CSLDestroy(papszPathTokens);
    1271           0 :         return nullptr;
    1272             :     }
    1273             : 
    1274       40356 :     OGR_SRSNode *poNode = GetRoot();
    1275      122740 :     for (int i = 0; poNode != nullptr && papszPathTokens[i] != nullptr; i++)
    1276             :     {
    1277       82384 :         poNode = poNode->GetNode(papszPathTokens[i]);
    1278             :     }
    1279             : 
    1280       40356 :     CSLDestroy(papszPathTokens);
    1281             : 
    1282       40356 :     return poNode;
    1283             : }
    1284             : 
    1285             : /**
    1286             :  * \brief Find named node in tree.
    1287             :  *
    1288             :  * This method does a pre-order traversal of the node tree searching for
    1289             :  * a node with this exact value (case insensitive), and returns it.  Leaf
    1290             :  * nodes are not considered, under the assumption that they are just
    1291             :  * attribute value nodes.
    1292             :  *
    1293             :  * If a node appears more than once in the tree (such as UNIT for instance),
    1294             :  * the first encountered will be returned.  Use GetNode() on a subtree to be
    1295             :  * more specific.
    1296             :  *
    1297             :  * @param pszNodePath the name of the node to search for.  May contain multiple
    1298             :  * components such as "GEOGCS|UNIT".
    1299             :  *
    1300             :  * @return a pointer to the node found, or NULL if none.
    1301             :  */
    1302             : 
    1303             : const OGR_SRSNode *
    1304       82276 : OGRSpatialReference::GetAttrNode(const char *pszNodePath) const
    1305             : 
    1306             : {
    1307             :     OGR_SRSNode *poNode =
    1308       82276 :         const_cast<OGRSpatialReference *>(this)->GetAttrNode(pszNodePath);
    1309             : 
    1310       82276 :     return poNode;
    1311             : }
    1312             : 
    1313             : /************************************************************************/
    1314             : /*                            GetAttrValue()                            */
    1315             : /************************************************************************/
    1316             : 
    1317             : /**
    1318             :  * \brief Fetch indicated attribute of named node.
    1319             :  *
    1320             :  * This method uses GetAttrNode() to find the named node, and then extracts
    1321             :  * the value of the indicated child.  Thus a call to GetAttrValue("UNIT",1)
    1322             :  * would return the second child of the UNIT node, which is normally the
    1323             :  * length of the linear unit in meters.
    1324             :  *
    1325             :  * This method does the same thing as the C function OSRGetAttrValue().
    1326             :  *
    1327             :  * @param pszNodeName the tree node to look for (case insensitive).
    1328             :  * @param iAttr the child of the node to fetch (zero based).
    1329             :  *
    1330             :  * @return the requested value, or NULL if it fails for any reason.
    1331             :  */
    1332             : 
    1333       24728 : const char *OGRSpatialReference::GetAttrValue(const char *pszNodeName,
    1334             :                                               int iAttr) const
    1335             : 
    1336             : {
    1337       24728 :     const OGR_SRSNode *poNode = GetAttrNode(pszNodeName);
    1338       24728 :     if (poNode == nullptr)
    1339             :     {
    1340       10564 :         if (d->m_bNodesWKT2 && EQUAL(pszNodeName, "PROJECTION"))
    1341             :         {
    1342          14 :             return GetAttrValue("METHOD", iAttr);
    1343             :         }
    1344       10550 :         else if (d->m_bNodesWKT2 && EQUAL(pszNodeName, "PROJCS|PROJECTION"))
    1345             :         {
    1346           0 :             return GetAttrValue("PROJCRS|METHOD", iAttr);
    1347             :         }
    1348       10550 :         else if (d->m_bNodesWKT2 && EQUAL(pszNodeName, "PROJCS"))
    1349             :         {
    1350           1 :             return GetAttrValue("PROJCRS", iAttr);
    1351             :         }
    1352       10549 :         return nullptr;
    1353             :     }
    1354             : 
    1355       14164 :     if (iAttr < 0 || iAttr >= poNode->GetChildCount())
    1356           0 :         return nullptr;
    1357             : 
    1358       14164 :     return poNode->GetChild(iAttr)->GetValue();
    1359             : }
    1360             : 
    1361             : /************************************************************************/
    1362             : /*                          OSRGetAttrValue()                           */
    1363             : /************************************************************************/
    1364             : 
    1365             : /**
    1366             :  * \brief Fetch indicated attribute of named node.
    1367             :  *
    1368             :  * This function is the same as OGRSpatialReference::GetAttrValue()
    1369             :  */
    1370          34 : const char *CPL_STDCALL OSRGetAttrValue(OGRSpatialReferenceH hSRS,
    1371             :                                         const char *pszKey, int iChild)
    1372             : 
    1373             : {
    1374          34 :     VALIDATE_POINTER1(hSRS, "OSRGetAttrValue", nullptr);
    1375             : 
    1376          34 :     return ToPointer(hSRS)->GetAttrValue(pszKey, iChild);
    1377             : }
    1378             : 
    1379             : /************************************************************************/
    1380             : /*                              GetName()                               */
    1381             : /************************************************************************/
    1382             : 
    1383             : /**
    1384             :  * \brief Return the CRS name.
    1385             :  *
    1386             :  * The returned value is only short lived and should not be used after other
    1387             :  * calls to methods on this object.
    1388             :  *
    1389             :  * @since GDAL 3.0
    1390             :  */
    1391             : 
    1392        8494 : const char *OGRSpatialReference::GetName() const
    1393             : {
    1394       16988 :     TAKE_OPTIONAL_LOCK();
    1395             : 
    1396        8494 :     d->refreshProjObj();
    1397        8494 :     if (!d->m_pj_crs)
    1398         113 :         return nullptr;
    1399        8381 :     const char *pszName = proj_get_name(d->m_pj_crs);
    1400             : #if PROJ_VERSION_NUMBER == PROJ_COMPUTE_VERSION(8, 2, 0)
    1401             :     if (d->m_pjType == PJ_TYPE_BOUND_CRS && EQUAL(pszName, "SOURCECRS"))
    1402             :     {
    1403             :         // Work around a bug of PROJ 8.2.0 (fixed in 8.2.1)
    1404             :         PJ *baseCRS = proj_get_source_crs(d->getPROJContext(), d->m_pj_crs);
    1405             :         if (baseCRS)
    1406             :         {
    1407             :             pszName = proj_get_name(baseCRS);
    1408             :             // pszName still remains valid after proj_destroy(), since
    1409             :             // d->m_pj_crs keeps a reference to the base CRS C++ object.
    1410             :             proj_destroy(baseCRS);
    1411             :         }
    1412             :     }
    1413             : #endif
    1414        8381 :     return pszName;
    1415             : }
    1416             : 
    1417             : /************************************************************************/
    1418             : /*                             OSRGetName()                             */
    1419             : /************************************************************************/
    1420             : 
    1421             : /**
    1422             :  * \brief Return the CRS name.
    1423             :  *
    1424             :  * The returned value is only short lived and should not be used after other
    1425             :  * calls to methods on this object.
    1426             :  *
    1427             :  * @since GDAL 3.0
    1428             :  */
    1429          46 : const char *OSRGetName(OGRSpatialReferenceH hSRS)
    1430             : 
    1431             : {
    1432          46 :     VALIDATE_POINTER1(hSRS, "OSRGetName", nullptr);
    1433             : 
    1434          46 :     return ToPointer(hSRS)->GetName();
    1435             : }
    1436             : 
    1437             : /************************************************************************/
    1438             : /*                        GetCelestialBodyName()                        */
    1439             : /************************************************************************/
    1440             : 
    1441             : /**
    1442             :  * \brief Return the name of the celestial body of this CRS.
    1443             :  *
    1444             :  * e.g. "Earth" for an Earth CRS
    1445             :  *
    1446             :  * The returned value is only short lived and should not be used after other
    1447             :  * calls to methods on this object.
    1448             :  *
    1449             :  * @since GDAL 3.12 and PROJ 8.1
    1450             :  */
    1451             : 
    1452           4 : const char *OGRSpatialReference::GetCelestialBodyName() const
    1453             : {
    1454             : #if PROJ_AT_LEAST_VERSION(8, 1, 0)
    1455             : 
    1456             :     TAKE_OPTIONAL_LOCK();
    1457             : 
    1458             :     d->refreshProjObj();
    1459             :     if (!d->m_pj_crs)
    1460             :         return nullptr;
    1461             :     d->demoteFromBoundCRS();
    1462             :     const char *name =
    1463             :         proj_get_celestial_body_name(d->getPROJContext(), d->m_pj_crs);
    1464             :     if (name)
    1465             :     {
    1466             :         d->m_celestialBodyName = name;
    1467             :     }
    1468             :     d->undoDemoteFromBoundCRS();
    1469             :     return d->m_celestialBodyName.c_str();
    1470             : #else
    1471           4 :     if (std::fabs(GetSemiMajor(nullptr) - SRS_WGS84_SEMIMAJOR) <=
    1472             :         0.05 * SRS_WGS84_SEMIMAJOR)
    1473           4 :         return "Earth";
    1474           0 :     const char *pszAuthName = GetAuthorityName(nullptr);
    1475           0 :     if (pszAuthName && EQUAL(pszAuthName, "EPSG"))
    1476           0 :         return "Earth";
    1477           0 :     return nullptr;
    1478             : #endif
    1479             : }
    1480             : 
    1481             : /************************************************************************/
    1482             : /*                      OSRGetCelestialBodyName()                       */
    1483             : /************************************************************************/
    1484             : 
    1485             : /**
    1486             :  * \brief Return the name of the celestial body of this CRS.
    1487             :  *
    1488             :  * e.g. "Earth" for an Earth CRS
    1489             :  *
    1490             :  * The returned value is only short lived and should not be used after other
    1491             :  * calls to methods on this object.
    1492             :  *
    1493             :  * @since GDAL 3.12 and PROJ 8.1
    1494             :  */
    1495             : 
    1496           1 : const char *OSRGetCelestialBodyName(OGRSpatialReferenceH hSRS)
    1497             : 
    1498             : {
    1499           1 :     VALIDATE_POINTER1(hSRS, "GetCelestialBodyName", nullptr);
    1500             : 
    1501           1 :     return ToPointer(hSRS)->GetCelestialBodyName();
    1502             : }
    1503             : 
    1504             : /************************************************************************/
    1505             : /*                               Clone()                                */
    1506             : /************************************************************************/
    1507             : 
    1508             : /**
    1509             :  * \brief Make a duplicate of this OGRSpatialReference.
    1510             :  *
    1511             :  * This method is the same as the C function OSRClone().
    1512             :  *
    1513             :  * @return a new SRS, which becomes the responsibility of the caller.
    1514             :  */
    1515             : 
    1516       31470 : OGRSpatialReference *OGRSpatialReference::Clone() const
    1517             : 
    1518             : {
    1519       31470 :     OGRSpatialReference *poNewRef = new OGRSpatialReference();
    1520             : 
    1521       31470 :     TAKE_OPTIONAL_LOCK();
    1522             : 
    1523       31470 :     d->refreshProjObj();
    1524       31470 :     if (d->m_pj_crs != nullptr)
    1525       31426 :         poNewRef->d->setPjCRS(proj_clone(d->getPROJContext(), d->m_pj_crs));
    1526       31470 :     if (d->m_bHasCenterLong && d->m_poRoot)
    1527             :     {
    1528           0 :         poNewRef->d->setRoot(d->m_poRoot->Clone());
    1529             :     }
    1530       31470 :     poNewRef->d->m_axisMapping = d->m_axisMapping;
    1531       31470 :     poNewRef->d->m_axisMappingStrategy = d->m_axisMappingStrategy;
    1532       31470 :     poNewRef->d->m_coordinateEpoch = d->m_coordinateEpoch;
    1533       62940 :     return poNewRef;
    1534             : }
    1535             : 
    1536             : /************************************************************************/
    1537             : /*                              OSRClone()                              */
    1538             : /************************************************************************/
    1539             : 
    1540             : /**
    1541             :  * \brief Make a duplicate of this OGRSpatialReference.
    1542             :  *
    1543             :  * This function is the same as OGRSpatialReference::Clone()
    1544             :  */
    1545        1329 : OGRSpatialReferenceH CPL_STDCALL OSRClone(OGRSpatialReferenceH hSRS)
    1546             : 
    1547             : {
    1548        1329 :     VALIDATE_POINTER1(hSRS, "OSRClone", nullptr);
    1549             : 
    1550        1329 :     return ToHandle(ToPointer(hSRS)->Clone());
    1551             : }
    1552             : 
    1553             : /************************************************************************/
    1554             : /*                            dumpReadable()                            */
    1555             : /************************************************************************/
    1556             : 
    1557             : /** Dump pretty wkt to stdout, mostly for debugging.
    1558             :  */
    1559           0 : void OGRSpatialReference::dumpReadable()
    1560             : 
    1561             : {
    1562           0 :     char *pszPrettyWkt = nullptr;
    1563             : 
    1564           0 :     const char *const apszOptions[] = {"FORMAT=WKT2", "MULTILINE=YES", nullptr};
    1565           0 :     exportToWkt(&pszPrettyWkt, apszOptions);
    1566           0 :     printf("%s\n", pszPrettyWkt); /*ok*/
    1567           0 :     CPLFree(pszPrettyWkt);
    1568           0 : }
    1569             : 
    1570             : /************************************************************************/
    1571             : /*                         exportToPrettyWkt()                          */
    1572             : /************************************************************************/
    1573             : 
    1574             : /**
    1575             :  * Convert this SRS into a nicely formatted WKT 1 string for display to a
    1576             :  * person.
    1577             :  *
    1578             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    1579             :  * Issues</a> page for implementation details of WKT 1 in OGR.
    1580             :  *
    1581             :  * Note that the returned WKT string should be freed with
    1582             :  * CPLFree() when no longer needed.  It is the responsibility of the caller.
    1583             :  *
    1584             :  * The WKT version can be overridden by using the OSR_WKT_FORMAT configuration
    1585             :  * option. Valid values are the one of the FORMAT option of
    1586             :  * exportToWkt( char ** ppszResult, const char* const* papszOptions ) const
    1587             :  *
    1588             :  * This method is the same as the C function OSRExportToPrettyWkt().
    1589             :  *
    1590             :  * @param ppszResult the resulting string is returned in this pointer.
    1591             :  * @param bSimplify TRUE if the AXIS, AUTHORITY and EXTENSION nodes should be
    1592             :  *   stripped off.
    1593             :  *
    1594             :  * @return OGRERR_NONE if successful.
    1595             :  */
    1596             : 
    1597          58 : OGRErr OGRSpatialReference::exportToPrettyWkt(char **ppszResult,
    1598             :                                               int bSimplify) const
    1599             : 
    1600             : {
    1601         116 :     CPLStringList aosOptions;
    1602          58 :     aosOptions.SetNameValue("MULTILINE", "YES");
    1603          58 :     if (bSimplify)
    1604             :     {
    1605           0 :         aosOptions.SetNameValue("FORMAT", "WKT1_SIMPLE");
    1606             :     }
    1607         116 :     return exportToWkt(ppszResult, aosOptions.List());
    1608             : }
    1609             : 
    1610             : /************************************************************************/
    1611             : /*                        OSRExportToPrettyWkt()                        */
    1612             : /************************************************************************/
    1613             : 
    1614             : /**
    1615             :  * \brief Convert this SRS into a nicely formatted WKT 1 string for display to a
    1616             :  * person.
    1617             :  *
    1618             :  * The WKT version can be overridden by using the OSR_WKT_FORMAT configuration
    1619             :  * option. Valid values are the one of the FORMAT option of
    1620             :  * exportToWkt( char ** ppszResult, const char* const* papszOptions ) const
    1621             :  *
    1622             :  * This function is the same as OGRSpatialReference::exportToPrettyWkt().
    1623             :  */
    1624             : 
    1625          56 : OGRErr CPL_STDCALL OSRExportToPrettyWkt(OGRSpatialReferenceH hSRS,
    1626             :                                         char **ppszReturn, int bSimplify)
    1627             : 
    1628             : {
    1629          56 :     VALIDATE_POINTER1(hSRS, "OSRExportToPrettyWkt", OGRERR_FAILURE);
    1630             : 
    1631          56 :     *ppszReturn = nullptr;
    1632             : 
    1633          56 :     return ToPointer(hSRS)->exportToPrettyWkt(ppszReturn, bSimplify);
    1634             : }
    1635             : 
    1636             : /************************************************************************/
    1637             : /*                            exportToWkt()                             */
    1638             : /************************************************************************/
    1639             : 
    1640             : /**
    1641             :  * \brief Convert this SRS into WKT 1 format.
    1642             :  *
    1643             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    1644             :  * Issues</a> page for implementation details of WKT 1 in OGR.
    1645             :  *
    1646             :  * Note that the returned WKT string should be freed with
    1647             :  * CPLFree() when no longer needed.  It is the responsibility of the caller.
    1648             :  *
    1649             :  * The WKT version can be overridden by using the OSR_WKT_FORMAT configuration
    1650             :  * option. Valid values are the one of the FORMAT option of
    1651             :  * exportToWkt( char ** ppszResult, const char* const* papszOptions ) const
    1652             :  *
    1653             :  * This method is the same as the C function OSRExportToWkt().
    1654             :  *
    1655             :  * @param ppszResult the resulting string is returned in this pointer.
    1656             :  *
    1657             :  * @return OGRERR_NONE if successful.
    1658             :  */
    1659             : 
    1660       12467 : OGRErr OGRSpatialReference::exportToWkt(char **ppszResult) const
    1661             : 
    1662             : {
    1663       12467 :     return exportToWkt(ppszResult, nullptr);
    1664             : }
    1665             : 
    1666             : /************************************************************************/
    1667             : /*              GDAL_proj_crs_create_bound_crs_to_WGS84()               */
    1668             : /************************************************************************/
    1669             : 
    1670         531 : static PJ *GDAL_proj_crs_create_bound_crs_to_WGS84(PJ_CONTEXT *ctx, PJ *pj,
    1671             :                                                    bool onlyIfEPSGCode,
    1672             :                                                    bool canModifyHorizPart)
    1673             : {
    1674         531 :     PJ *ret = nullptr;
    1675         531 :     if (proj_get_type(pj) == PJ_TYPE_COMPOUND_CRS)
    1676             :     {
    1677          13 :         auto horizCRS = proj_crs_get_sub_crs(ctx, pj, 0);
    1678          13 :         auto vertCRS = proj_crs_get_sub_crs(ctx, pj, 1);
    1679          13 :         if (horizCRS && proj_get_type(horizCRS) != PJ_TYPE_BOUND_CRS &&
    1680          26 :             vertCRS &&
    1681          10 :             (!onlyIfEPSGCode || proj_get_id_auth_name(horizCRS, 0) != nullptr))
    1682             :         {
    1683             :             auto boundHoriz =
    1684             :                 canModifyHorizPart
    1685           3 :                     ? proj_crs_create_bound_crs_to_WGS84(ctx, horizCRS, nullptr)
    1686           3 :                     : proj_clone(ctx, horizCRS);
    1687             :             auto boundVert =
    1688           3 :                 proj_crs_create_bound_crs_to_WGS84(ctx, vertCRS, nullptr);
    1689           3 :             if (boundHoriz && boundVert)
    1690             :             {
    1691           3 :                 ret = proj_create_compound_crs(ctx, proj_get_name(pj),
    1692             :                                                boundHoriz, boundVert);
    1693             :             }
    1694           3 :             proj_destroy(boundHoriz);
    1695           3 :             proj_destroy(boundVert);
    1696             :         }
    1697          13 :         proj_destroy(horizCRS);
    1698          13 :         proj_destroy(vertCRS);
    1699             :     }
    1700         996 :     else if (proj_get_type(pj) != PJ_TYPE_BOUND_CRS &&
    1701         478 :              (!onlyIfEPSGCode || proj_get_id_auth_name(pj, 0) != nullptr))
    1702             :     {
    1703         173 :         ret = proj_crs_create_bound_crs_to_WGS84(ctx, pj, nullptr);
    1704             :     }
    1705         531 :     return ret;
    1706             : }
    1707             : 
    1708             : /************************************************************************/
    1709             : /*                            exportToWkt()                             */
    1710             : /************************************************************************/
    1711             : 
    1712             : /**
    1713             :  * Convert this SRS into a WKT string.
    1714             :  *
    1715             :  * Note that the returned WKT string should be freed with
    1716             :  * CPLFree() when no longer needed.  It is the responsibility of the caller.
    1717             :  *
    1718             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    1719             :  * Issues</a> page for implementation details of WKT 1 in OGR.
    1720             :  *
    1721             :  * @param ppszResult the resulting string is returned in this pointer.
    1722             :  * @param papszOptions NULL terminated list of options, or NULL. Currently
    1723             :  * supported options are
    1724             :  * <ul>
    1725             :  * <li>MULTILINE=YES/NO. Defaults to NO.</li>
    1726             :  * <li>FORMAT=SFSQL/WKT1_SIMPLE/WKT1/WKT1_GDAL/WKT1_ESRI/WKT2_2015/WKT2_2018/WKT2/DEFAULT.
    1727             :  *     If SFSQL, a WKT1 string without AXIS, TOWGS84, AUTHORITY or EXTENSION
    1728             :  *     node is returned.
    1729             :  *     If WKT1_SIMPLE, a WKT1 string without AXIS, AUTHORITY or EXTENSION
    1730             :  *     node is returned.
    1731             :  *     WKT1 is an alias of WKT1_GDAL.
    1732             :  *     WKT2 will default to the latest revision implemented (currently
    1733             :  *     WKT2_2018) WKT2_2019 can be used as an alias of WKT2_2018 since GDAL 3.2
    1734             :  * </li>
    1735             :  * <li>ALLOW_ELLIPSOIDAL_HEIGHT_AS_VERTICAL_CRS=YES/NO. Default is NO. If set
    1736             :  * to YES and FORMAT=WKT1_GDAL, a Geographic 3D CRS or a Projected 3D CRS will
    1737             :  * be exported as a compound CRS whose vertical part represents an ellipsoidal
    1738             :  * height (for example for use with LAS 1.4 WKT1).
    1739             :  * Requires PROJ 7.2.1 and GDAL 3.2.1.</li>
    1740             :  * </ul>
    1741             :  *
    1742             :  * Starting with GDAL 3.0.3, if the OSR_ADD_TOWGS84_ON_EXPORT_TO_WKT1
    1743             :  * configuration option is set to YES, when exporting to WKT1_GDAL, this method
    1744             :  * will try to add a TOWGS84[] node, if there's none attached yet to the SRS and
    1745             :  * if the SRS has a EPSG code. See the AddGuessedTOWGS84() method for how this
    1746             :  * TOWGS84[] node may be added.
    1747             :  *
    1748             :  * @return OGRERR_NONE if successful.
    1749             :  * @since GDAL 3.0
    1750             :  */
    1751             : 
    1752       17408 : OGRErr OGRSpatialReference::exportToWkt(char **ppszResult,
    1753             :                                         const char *const *papszOptions) const
    1754             : {
    1755             :     // In the past calling this method was thread-safe, even if we never
    1756             :     // guaranteed it. Now proj_as_wkt() will cache the result internally,
    1757             :     // so this is no longer thread-safe.
    1758       34816 :     std::lock_guard oLock(d->m_mutex);
    1759             : 
    1760       17408 :     d->refreshProjObj();
    1761       17408 :     if (!d->m_pj_crs)
    1762             :     {
    1763          21 :         *ppszResult = CPLStrdup("");
    1764          21 :         return OGRERR_FAILURE;
    1765             :     }
    1766             : 
    1767       17387 :     if (d->m_bHasCenterLong && d->m_poRoot && !d->m_bMorphToESRI)
    1768             :     {
    1769           0 :         return d->m_poRoot->exportToWkt(ppszResult);
    1770             :     }
    1771             : 
    1772       17387 :     auto ctxt = d->getPROJContext();
    1773       17387 :     auto wktFormat = PJ_WKT1_GDAL;
    1774             :     const char *pszFormat =
    1775       17387 :         CSLFetchNameValueDef(papszOptions, "FORMAT",
    1776             :                              CPLGetConfigOption("OSR_WKT_FORMAT", "DEFAULT"));
    1777       17387 :     if (EQUAL(pszFormat, "DEFAULT"))
    1778       14608 :         pszFormat = "";
    1779             : 
    1780       17387 :     if (EQUAL(pszFormat, "WKT1_ESRI") || d->m_bMorphToESRI)
    1781             :     {
    1782         658 :         wktFormat = PJ_WKT1_ESRI;
    1783             :     }
    1784       16729 :     else if (EQUAL(pszFormat, "WKT1") || EQUAL(pszFormat, "WKT1_GDAL") ||
    1785       16026 :              EQUAL(pszFormat, "WKT1_SIMPLE") || EQUAL(pszFormat, "SFSQL"))
    1786             :     {
    1787         708 :         wktFormat = PJ_WKT1_GDAL;
    1788             :     }
    1789       16021 :     else if (EQUAL(pszFormat, "WKT2_2015"))
    1790             :     {
    1791         347 :         wktFormat = PJ_WKT2_2015;
    1792             :     }
    1793       15674 :     else if (EQUAL(pszFormat, "WKT2") || EQUAL(pszFormat, "WKT2_2018") ||
    1794       15287 :              EQUAL(pszFormat, "WKT2_2019"))
    1795             :     {
    1796        1295 :         wktFormat = PJ_WKT2_2018;
    1797             :     }
    1798       14379 :     else if (pszFormat[0] == '\0')
    1799             :     {
    1800             :         // cppcheck-suppress knownConditionTrueFalse
    1801       14379 :         if (IsDerivedGeographic())
    1802             :         {
    1803           2 :             wktFormat = PJ_WKT2_2018;
    1804             :         }
    1805       28121 :         else if ((IsGeographic() || IsProjected()) && !IsCompound() &&
    1806       13744 :                  GetAxesCount() == 3)
    1807             :         {
    1808          80 :             wktFormat = PJ_WKT2_2018;
    1809             :         }
    1810             :     }
    1811             :     else
    1812             :     {
    1813           0 :         CPLError(CE_Failure, CPLE_AppDefined, "Unsupported value for FORMAT");
    1814           0 :         *ppszResult = CPLStrdup("");
    1815           0 :         return OGRERR_FAILURE;
    1816             :     }
    1817             : 
    1818       34774 :     CPLStringList aosOptions;
    1819       17387 :     if (wktFormat != PJ_WKT1_ESRI)
    1820             :     {
    1821       16729 :         aosOptions.SetNameValue("OUTPUT_AXIS", "YES");
    1822             :     }
    1823             :     aosOptions.SetNameValue(
    1824       17387 :         "MULTILINE", CSLFetchNameValueDef(papszOptions, "MULTILINE", "NO"));
    1825             : 
    1826       17387 :     const char *pszAllowEllpsHeightAsVertCS = CSLFetchNameValue(
    1827             :         papszOptions, "ALLOW_ELLIPSOIDAL_HEIGHT_AS_VERTICAL_CRS");
    1828       17387 :     if (pszAllowEllpsHeightAsVertCS)
    1829             :     {
    1830             :         aosOptions.SetNameValue("ALLOW_ELLIPSOIDAL_HEIGHT_AS_VERTICAL_CRS",
    1831           0 :                                 pszAllowEllpsHeightAsVertCS);
    1832             :     }
    1833             : 
    1834       17387 :     PJ *boundCRS = nullptr;
    1835       32392 :     if (wktFormat == PJ_WKT1_GDAL &&
    1836       15005 :         CPLTestBool(CSLFetchNameValueDef(
    1837             :             papszOptions, "ADD_TOWGS84_ON_EXPORT_TO_WKT1",
    1838             :             CPLGetConfigOption("OSR_ADD_TOWGS84_ON_EXPORT_TO_WKT1", "NO"))))
    1839             :     {
    1840           0 :         boundCRS = GDAL_proj_crs_create_bound_crs_to_WGS84(
    1841           0 :             d->getPROJContext(), d->m_pj_crs, true, true);
    1842             :     }
    1843             : 
    1844       34774 :     CPLErrorAccumulator oErrorAccumulator;
    1845             :     const char *pszWKT;
    1846             :     {
    1847       17387 :         auto oAccumulator = oErrorAccumulator.InstallForCurrentScope();
    1848       17387 :         CPL_IGNORE_RET_VAL(oAccumulator);
    1849       17387 :         pszWKT = proj_as_wkt(ctxt, boundCRS ? boundCRS : d->m_pj_crs, wktFormat,
    1850       17387 :                              aosOptions.List());
    1851             :     }
    1852       17389 :     for (const auto &oError : oErrorAccumulator.GetErrors())
    1853             :     {
    1854          32 :         if (pszFormat[0] == '\0' &&
    1855          14 :             (oError.msg.find("Unsupported conversion method") !=
    1856           2 :                  std::string::npos ||
    1857           2 :              oError.msg.find("can only be exported to WKT2") !=
    1858           0 :                  std::string::npos ||
    1859           0 :              oError.msg.find("can only be exported since WKT2:2019") !=
    1860             :                  std::string::npos))
    1861             :         {
    1862          14 :             CPLErrorReset();
    1863             :             // If we cannot export in the default mode (WKT1), retry with WKT2
    1864          14 :             pszWKT = proj_as_wkt(ctxt, boundCRS ? boundCRS : d->m_pj_crs,
    1865          14 :                                  PJ_WKT2_2018, aosOptions.List());
    1866          14 :             break;
    1867             :         }
    1868           2 :         CPLError(oError.type, oError.no, "%s", oError.msg.c_str());
    1869             :     }
    1870             : 
    1871       17387 :     if (!pszWKT)
    1872             :     {
    1873           2 :         *ppszResult = CPLStrdup("");
    1874           2 :         proj_destroy(boundCRS);
    1875           2 :         return OGRERR_FAILURE;
    1876             :     }
    1877             : 
    1878       17385 :     if (EQUAL(pszFormat, "SFSQL") || EQUAL(pszFormat, "WKT1_SIMPLE"))
    1879             :     {
    1880           5 :         OGR_SRSNode oRoot;
    1881           5 :         oRoot.importFromWkt(&pszWKT);
    1882           5 :         oRoot.StripNodes("AXIS");
    1883           5 :         if (EQUAL(pszFormat, "SFSQL"))
    1884             :         {
    1885           3 :             oRoot.StripNodes("TOWGS84");
    1886             :         }
    1887           5 :         oRoot.StripNodes("AUTHORITY");
    1888           5 :         oRoot.StripNodes("EXTENSION");
    1889             :         OGRErr eErr;
    1890           5 :         if (CPLTestBool(CSLFetchNameValueDef(papszOptions, "MULTILINE", "NO")))
    1891           2 :             eErr = oRoot.exportToPrettyWkt(ppszResult, 1);
    1892             :         else
    1893           3 :             eErr = oRoot.exportToWkt(ppszResult);
    1894           5 :         proj_destroy(boundCRS);
    1895           5 :         return eErr;
    1896             :     }
    1897             : 
    1898       17380 :     *ppszResult = CPLStrdup(pszWKT);
    1899             : 
    1900             : #if !(PROJ_AT_LEAST_VERSION(9, 5, 0))
    1901       17380 :     if (wktFormat == PJ_WKT2_2018)
    1902             :     {
    1903             :         // Works around bug fixed per https://github.com/OSGeo/PROJ/pull/4166
    1904             :         // related to a wrong EPSG code assigned to UTM South conversions
    1905        1377 :         char *pszPtr = strstr(*ppszResult, "CONVERSION[\"UTM zone ");
    1906        1377 :         if (pszPtr)
    1907             :         {
    1908         337 :             pszPtr += strlen("CONVERSION[\"UTM zone ");
    1909         337 :             const int nZone = atoi(pszPtr);
    1910        1010 :             while (*pszPtr >= '0' && *pszPtr <= '9')
    1911         673 :                 ++pszPtr;
    1912         337 :             if (nZone >= 1 && nZone <= 60 && *pszPtr == 'S' &&
    1913           1 :                 pszPtr[1] == '"' && pszPtr[2] == ',')
    1914             :             {
    1915           1 :                 pszPtr += 3;
    1916           1 :                 int nLevel = 0;
    1917           1 :                 bool bInString = false;
    1918             :                 // Find the ID node corresponding to this CONVERSION node
    1919         480 :                 while (*pszPtr)
    1920             :                 {
    1921         480 :                     if (bInString)
    1922             :                     {
    1923         197 :                         if (*pszPtr == '"' && pszPtr[1] == '"')
    1924             :                         {
    1925           0 :                             ++pszPtr;
    1926             :                         }
    1927         197 :                         else if (*pszPtr == '"')
    1928             :                         {
    1929          17 :                             bInString = false;
    1930             :                         }
    1931             :                     }
    1932         283 :                     else if (nLevel == 0 && STARTS_WITH_CI(pszPtr, "ID["))
    1933             :                     {
    1934           1 :                         if (STARTS_WITH_CI(pszPtr, CPLSPrintf("ID[\"EPSG\",%d]",
    1935             :                                                               17000 + nZone)))
    1936             :                         {
    1937           1 :                             CPLAssert(pszPtr[11] == '7');
    1938           1 :                             CPLAssert(pszPtr[12] == '0');
    1939           1 :                             pszPtr[11] = '6';
    1940           1 :                             pszPtr[12] = '1';
    1941             :                         }
    1942           1 :                         break;
    1943             :                     }
    1944         282 :                     else if (*pszPtr == '"')
    1945             :                     {
    1946          17 :                         bInString = true;
    1947             :                     }
    1948         265 :                     else if (*pszPtr == '[')
    1949             :                     {
    1950          17 :                         ++nLevel;
    1951             :                     }
    1952         248 :                     else if (*pszPtr == ']')
    1953             :                     {
    1954          17 :                         --nLevel;
    1955             :                     }
    1956             : 
    1957         479 :                     ++pszPtr;
    1958             :                 }
    1959             :             }
    1960             :         }
    1961             :     }
    1962             : #endif
    1963             : 
    1964       17380 :     proj_destroy(boundCRS);
    1965       17380 :     return OGRERR_NONE;
    1966             : }
    1967             : 
    1968             : /************************************************************************/
    1969             : /*                            exportToWkt()                             */
    1970             : /************************************************************************/
    1971             : 
    1972             : /**
    1973             :  * Convert this SRS into a WKT string.
    1974             :  *
    1975             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    1976             :  * Issues</a> page for implementation details of WKT 1 in OGR.
    1977             :  *
    1978             :  * @param papszOptions NULL terminated list of options, or NULL. Currently
    1979             :  * supported options are
    1980             :  * <ul>
    1981             :  * <li>MULTILINE=YES/NO. Defaults to NO.</li>
    1982             :  * <li>FORMAT=SFSQL/WKT1_SIMPLE/WKT1/WKT1_GDAL/WKT1_ESRI/WKT2_2015/WKT2_2018/WKT2/DEFAULT.
    1983             :  *     If SFSQL, a WKT1 string without AXIS, TOWGS84, AUTHORITY or EXTENSION
    1984             :  *     node is returned.
    1985             :  *     If WKT1_SIMPLE, a WKT1 string without AXIS, AUTHORITY or EXTENSION
    1986             :  *     node is returned.
    1987             :  *     WKT1 is an alias of WKT1_GDAL.
    1988             :  *     WKT2 will default to the latest revision implemented (currently
    1989             :  *     WKT2_2019)
    1990             :  * </li>
    1991             :  * <li>ALLOW_ELLIPSOIDAL_HEIGHT_AS_VERTICAL_CRS=YES/NO. Default is NO. If set
    1992             :  * to YES and FORMAT=WKT1_GDAL, a Geographic 3D CRS or a Projected 3D CRS will
    1993             :  * be exported as a compound CRS whose vertical part represents an ellipsoidal
    1994             :  * height (for example for use with LAS 1.4 WKT1).
    1995             :  * Requires PROJ 7.2.1.</li>
    1996             :  * </ul>
    1997             :  *
    1998             :  * If the OSR_ADD_TOWGS84_ON_EXPORT_TO_WKT1
    1999             :  * configuration option is set to YES, when exporting to WKT1_GDAL, this method
    2000             :  * will try to add a TOWGS84[] node, if there's none attached yet to the SRS and
    2001             :  * if the SRS has a EPSG code. See the AddGuessedTOWGS84() method for how this
    2002             :  * TOWGS84[] node may be added.
    2003             :  *
    2004             :  * @return a non-empty string if successful.
    2005             :  * @since GDAL 3.9
    2006             :  */
    2007             : 
    2008             : std::string
    2009         531 : OGRSpatialReference::exportToWkt(const char *const *papszOptions) const
    2010             : {
    2011         531 :     std::string osWKT;
    2012         531 :     char *pszWKT = nullptr;
    2013         531 :     if (exportToWkt(&pszWKT, papszOptions) == OGRERR_NONE)
    2014         531 :         osWKT = pszWKT;
    2015         531 :     CPLFree(pszWKT);
    2016        1062 :     return osWKT;
    2017             : }
    2018             : 
    2019             : /************************************************************************/
    2020             : /*                           OSRExportToWkt()                           */
    2021             : /************************************************************************/
    2022             : 
    2023             : /**
    2024             :  * \brief Convert this SRS into WKT 1 format.
    2025             :  *
    2026             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    2027             :  * Issues</a> page for implementation details of WKT in OGR.
    2028             :  *
    2029             :  * The WKT version can be overridden by using the OSR_WKT_FORMAT configuration
    2030             :  * option. Valid values are the one of the FORMAT option of
    2031             :  * exportToWkt( char ** ppszResult, const char* const* papszOptions ) const
    2032             :  *
    2033             :  * This function is the same as OGRSpatialReference::exportToWkt().
    2034             :  */
    2035             : 
    2036        1048 : OGRErr CPL_STDCALL OSRExportToWkt(OGRSpatialReferenceH hSRS, char **ppszReturn)
    2037             : 
    2038             : {
    2039        1048 :     VALIDATE_POINTER1(hSRS, "OSRExportToWkt", OGRERR_FAILURE);
    2040             : 
    2041        1048 :     *ppszReturn = nullptr;
    2042             : 
    2043        1048 :     return ToPointer(hSRS)->exportToWkt(ppszReturn);
    2044             : }
    2045             : 
    2046             : /************************************************************************/
    2047             : /*                          OSRExportToWktEx()                          */
    2048             : /************************************************************************/
    2049             : 
    2050             : /**
    2051             :  * \brief Convert this SRS into WKT format.
    2052             :  *
    2053             :  * This function is the same as OGRSpatialReference::exportToWkt(char **
    2054             :  * ppszResult,const char* const* papszOptions ) const
    2055             :  *
    2056             :  * @since GDAL 3.0
    2057             :  */
    2058             : 
    2059        1308 : OGRErr OSRExportToWktEx(OGRSpatialReferenceH hSRS, char **ppszReturn,
    2060             :                         const char *const *papszOptions)
    2061             : {
    2062        1308 :     VALIDATE_POINTER1(hSRS, "OSRExportToWktEx", OGRERR_FAILURE);
    2063             : 
    2064        1308 :     *ppszReturn = nullptr;
    2065             : 
    2066        1308 :     return ToPointer(hSRS)->exportToWkt(ppszReturn, papszOptions);
    2067             : }
    2068             : 
    2069             : /************************************************************************/
    2070             : /*                          exportToPROJJSON()                          */
    2071             : /************************************************************************/
    2072             : 
    2073             : /**
    2074             :  * Convert this SRS into a PROJJSON string.
    2075             :  *
    2076             :  * Note that the returned JSON string should be freed with
    2077             :  * CPLFree() when no longer needed.  It is the responsibility of the caller.
    2078             :  *
    2079             :  * @param ppszResult the resulting string is returned in this pointer.
    2080             :  * @param papszOptions NULL terminated list of options, or NULL. Currently
    2081             :  * supported options are
    2082             :  * <ul>
    2083             :  * <li>MULTILINE=YES/NO. Defaults to YES</li>
    2084             :  * <li>INDENTATION_WIDTH=number. Defaults to 2 (when multiline output is
    2085             :  * on).</li>
    2086             :  * <li>SCHEMA=string. URL to PROJJSON schema. Can be set to empty string to
    2087             :  * disable it.</li>
    2088             :  * </ul>
    2089             :  *
    2090             :  * @return OGRERR_NONE if successful.
    2091             :  * @since GDAL 3.1 and PROJ 6.2
    2092             :  */
    2093             : 
    2094        2852 : OGRErr OGRSpatialReference::exportToPROJJSON(
    2095             :     char **ppszResult, CPL_UNUSED const char *const *papszOptions) const
    2096             : {
    2097        5704 :     TAKE_OPTIONAL_LOCK();
    2098             : 
    2099        2852 :     d->refreshProjObj();
    2100        2852 :     if (!d->m_pj_crs)
    2101             :     {
    2102           1 :         *ppszResult = nullptr;
    2103           1 :         return OGRERR_FAILURE;
    2104             :     }
    2105             : 
    2106             :     const char *pszPROJJSON =
    2107        2851 :         proj_as_projjson(d->getPROJContext(), d->m_pj_crs, papszOptions);
    2108             : 
    2109        2851 :     if (!pszPROJJSON)
    2110             :     {
    2111           0 :         *ppszResult = CPLStrdup("");
    2112           0 :         return OGRERR_FAILURE;
    2113             :     }
    2114             : 
    2115        2851 :     *ppszResult = CPLStrdup(pszPROJJSON);
    2116             : 
    2117             : #if !(PROJ_AT_LEAST_VERSION(9, 5, 0))
    2118             :     {
    2119             :         // Works around bug fixed per https://github.com/OSGeo/PROJ/pull/4166
    2120             :         // related to a wrong EPSG code assigned to UTM South conversions
    2121        2851 :         char *pszPtr = strstr(*ppszResult, "\"name\": \"UTM zone ");
    2122        2851 :         if (pszPtr)
    2123             :         {
    2124         257 :             pszPtr += strlen("\"name\": \"UTM zone ");
    2125         257 :             const int nZone = atoi(pszPtr);
    2126         770 :             while (*pszPtr >= '0' && *pszPtr <= '9')
    2127         513 :                 ++pszPtr;
    2128         257 :             if (nZone >= 1 && nZone <= 60 && *pszPtr == 'S' && pszPtr[1] == '"')
    2129             :             {
    2130           4 :                 pszPtr += 2;
    2131           4 :                 int nLevel = 0;
    2132           4 :                 bool bInString = false;
    2133             :                 // Find the id node corresponding to this conversion node
    2134        5299 :                 while (*pszPtr)
    2135             :                 {
    2136        5299 :                     if (bInString)
    2137             :                     {
    2138        1950 :                         if (*pszPtr == '\\')
    2139             :                         {
    2140           0 :                             ++pszPtr;
    2141             :                         }
    2142        1950 :                         else if (*pszPtr == '"')
    2143             :                         {
    2144         244 :                             bInString = false;
    2145             :                         }
    2146             :                     }
    2147        3349 :                     else if (nLevel == 0 && STARTS_WITH(pszPtr, "\"id\": {"))
    2148             :                     {
    2149           4 :                         const char *pszNextEndCurl = strchr(pszPtr, '}');
    2150             :                         const char *pszAuthEPSG =
    2151           4 :                             strstr(pszPtr, "\"authority\": \"EPSG\"");
    2152           4 :                         char *pszCode = strstr(
    2153             :                             pszPtr, CPLSPrintf("\"code\": %d", 17000 + nZone));
    2154           4 :                         if (pszAuthEPSG && pszCode && pszNextEndCurl &&
    2155           4 :                             pszNextEndCurl - pszAuthEPSG > 0 &&
    2156           4 :                             pszNextEndCurl - pszCode > 0)
    2157             :                         {
    2158           4 :                             CPLAssert(pszCode[9] == '7');
    2159           4 :                             CPLAssert(pszCode[10] == '0');
    2160           4 :                             pszCode[9] = '6';
    2161           4 :                             pszCode[10] = '1';
    2162             :                         }
    2163           4 :                         break;
    2164             :                     }
    2165        3345 :                     else if (*pszPtr == '"')
    2166             :                     {
    2167         244 :                         bInString = true;
    2168             :                     }
    2169        3101 :                     else if (*pszPtr == '{' || *pszPtr == '[')
    2170             :                     {
    2171          60 :                         ++nLevel;
    2172             :                     }
    2173        3041 :                     else if (*pszPtr == '}' || *pszPtr == ']')
    2174             :                     {
    2175          60 :                         --nLevel;
    2176             :                     }
    2177             : 
    2178        5295 :                     ++pszPtr;
    2179             :                 }
    2180             :             }
    2181             :         }
    2182             :     }
    2183             : #endif
    2184             : 
    2185        2851 :     return OGRERR_NONE;
    2186             : }
    2187             : 
    2188             : /************************************************************************/
    2189             : /*                        OSRExportToPROJJSON()                         */
    2190             : /************************************************************************/
    2191             : 
    2192             : /**
    2193             :  * \brief Convert this SRS into PROJJSON format.
    2194             :  *
    2195             :  * This function is the same as OGRSpatialReference::exportToPROJJSON() const
    2196             :  *
    2197             :  * @since GDAL 3.1 and PROJ 6.2
    2198             :  */
    2199             : 
    2200           2 : OGRErr OSRExportToPROJJSON(OGRSpatialReferenceH hSRS, char **ppszReturn,
    2201             :                            const char *const *papszOptions)
    2202             : {
    2203           2 :     VALIDATE_POINTER1(hSRS, "OSRExportToPROJJSON", OGRERR_FAILURE);
    2204             : 
    2205           2 :     *ppszReturn = nullptr;
    2206             : 
    2207           2 :     return ToPointer(hSRS)->exportToPROJJSON(ppszReturn, papszOptions);
    2208             : }
    2209             : 
    2210             : /************************************************************************/
    2211             : /*                           importFromWkt()                            */
    2212             : /************************************************************************/
    2213             : 
    2214             : /**
    2215             :  * \brief Import from WKT string.
    2216             :  *
    2217             :  * This method will wipe the existing SRS definition, and
    2218             :  * reassign it based on the contents of the passed WKT string.  Only as
    2219             :  * much of the input string as needed to construct this SRS is consumed from
    2220             :  * the input string, and the input string pointer
    2221             :  * is then updated to point to the remaining (unused) input.
    2222             :  *
    2223             :  * Starting with PROJ 9.2, if invoked on a COORDINATEMETADATA[] construct,
    2224             :  * the CRS contained in it will be used to fill the OGRSpatialReference object,
    2225             :  * and the coordinate epoch potentially present used as the coordinate epoch
    2226             :  * property of the OGRSpatialReference object.
    2227             :  *
    2228             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    2229             :  * Issues</a> page for implementation details of WKT in OGR.
    2230             :  *
    2231             :  * This method is the same as the C function OSRImportFromWkt().
    2232             :  *
    2233             :  * @param ppszInput Pointer to pointer to input.  The pointer is updated to
    2234             :  * point to remaining unused input text.
    2235             :  *
    2236             :  * @return OGRERR_NONE if import succeeds, or OGRERR_CORRUPT_DATA if it
    2237             :  * fails for any reason.
    2238             :  */
    2239             : 
    2240       20266 : OGRErr OGRSpatialReference::importFromWkt(const char **ppszInput)
    2241             : 
    2242             : {
    2243       20266 :     return importFromWkt(ppszInput, nullptr);
    2244             : }
    2245             : 
    2246             : /************************************************************************/
    2247             : /*                           importFromWkt()                            */
    2248             : /************************************************************************/
    2249             : 
    2250             : /*! @cond Doxygen_Suppress */
    2251             : 
    2252          21 : OGRErr OGRSpatialReference::importFromWkt(const char *pszInput,
    2253             :                                           CSLConstList papszOptions)
    2254             : 
    2255             : {
    2256          21 :     return importFromWkt(&pszInput, papszOptions);
    2257             : }
    2258             : 
    2259       20287 : OGRErr OGRSpatialReference::importFromWkt(const char **ppszInput,
    2260             :                                           CSLConstList papszOptions)
    2261             : 
    2262             : {
    2263       40574 :     TAKE_OPTIONAL_LOCK();
    2264             : 
    2265       20287 :     if (!ppszInput || !*ppszInput)
    2266           0 :         return OGRERR_FAILURE;
    2267             : 
    2268       20287 :     if (strlen(*ppszInput) > 100 * 1000 &&
    2269           0 :         CPLTestBool(CPLGetConfigOption("OSR_IMPORT_FROM_WKT_LIMIT", "YES")))
    2270             :     {
    2271           0 :         CPLError(CE_Failure, CPLE_NotSupported,
    2272             :                  "Suspiciously large input for importFromWkt(). Rejecting it. "
    2273             :                  "You can remove this limitation by definition the "
    2274             :                  "OSR_IMPORT_FROM_WKT_LIMIT configuration option to NO.");
    2275           0 :         return OGRERR_FAILURE;
    2276             :     }
    2277             : 
    2278       20287 :     Clear();
    2279             : 
    2280       20287 :     bool canCache = false;
    2281       20287 :     auto tlsCache = OSRGetProjTLSCache();
    2282       40574 :     std::string osWkt;
    2283       20287 :     if (**ppszInput)
    2284             :     {
    2285       19731 :         osWkt = *ppszInput;
    2286       19731 :         auto cachedObj = tlsCache->GetPJForWKT(osWkt);
    2287       19731 :         if (cachedObj)
    2288             :         {
    2289       17745 :             d->setPjCRS(cachedObj);
    2290             :         }
    2291             :         else
    2292             :         {
    2293        3972 :             CPLStringList aosOptions(papszOptions);
    2294        1986 :             if (aosOptions.FetchNameValue("STRICT") == nullptr)
    2295        1986 :                 aosOptions.SetNameValue("STRICT", "NO");
    2296        1986 :             PROJ_STRING_LIST warnings = nullptr;
    2297        1986 :             PROJ_STRING_LIST errors = nullptr;
    2298        1986 :             auto ctxt = d->getPROJContext();
    2299        1986 :             auto pj = proj_create_from_wkt(ctxt, *ppszInput, aosOptions.List(),
    2300             :                                            &warnings, &errors);
    2301        1986 :             d->setPjCRS(pj);
    2302             : 
    2303        2039 :             for (auto iter = warnings; iter && *iter; ++iter)
    2304             :             {
    2305          53 :                 d->m_wktImportWarnings.push_back(*iter);
    2306             :             }
    2307        2223 :             for (auto iter = errors; iter && *iter; ++iter)
    2308             :             {
    2309         237 :                 d->m_wktImportErrors.push_back(*iter);
    2310         237 :                 if (!d->m_pj_crs)
    2311             :                 {
    2312          34 :                     CPLError(CE_Failure, CPLE_AppDefined, "%s", *iter);
    2313             :                 }
    2314             :             }
    2315        1986 :             if (warnings == nullptr && errors == nullptr)
    2316             :             {
    2317        1705 :                 canCache = true;
    2318             :             }
    2319        1986 :             proj_string_list_destroy(warnings);
    2320        1986 :             proj_string_list_destroy(errors);
    2321             :         }
    2322             :     }
    2323       20287 :     if (!d->m_pj_crs)
    2324         590 :         return OGRERR_CORRUPT_DATA;
    2325             : 
    2326             :     // Only accept CRS objects
    2327       19697 :     if (!proj_is_crs(d->m_pj_crs))
    2328             :     {
    2329           0 :         Clear();
    2330           0 :         return OGRERR_CORRUPT_DATA;
    2331             :     }
    2332             : 
    2333       19697 :     if (canCache)
    2334             :     {
    2335        1705 :         tlsCache->CachePJForWKT(osWkt, d->m_pj_crs);
    2336             :     }
    2337             : 
    2338       19697 :     if (strstr(*ppszInput, "CENTER_LONG"))
    2339             :     {
    2340           0 :         auto poRoot = new OGR_SRSNode();
    2341           0 :         d->setRoot(poRoot);
    2342           0 :         const char *pszTmp = *ppszInput;
    2343           0 :         poRoot->importFromWkt(&pszTmp);
    2344           0 :         d->m_bHasCenterLong = true;
    2345             :     }
    2346             : 
    2347             :     // TODO? we don't really update correctly since we assume that the
    2348             :     // passed string is only WKT.
    2349       19697 :     *ppszInput += strlen(*ppszInput);
    2350       19697 :     return OGRERR_NONE;
    2351             : 
    2352             : #if no_longer_implemented_for_now
    2353             :     /* -------------------------------------------------------------------- */
    2354             :     /*      The following seems to try and detect and unconsumed            */
    2355             :     /*      VERTCS[] coordinate system definition (ESRI style) and to       */
    2356             :     /*      import and attach it to the existing root.  Likely we will      */
    2357             :     /*      need to extend this somewhat to bring it into an acceptable     */
    2358             :     /*      OGRSpatialReference organization at some point.                 */
    2359             :     /* -------------------------------------------------------------------- */
    2360             :     if (strlen(*ppszInput) > 0 && strstr(*ppszInput, "VERTCS"))
    2361             :     {
    2362             :         if (((*ppszInput)[0]) == ',')
    2363             :             (*ppszInput)++;
    2364             :         OGR_SRSNode *poNewChild = new OGR_SRSNode();
    2365             :         poRoot->AddChild(poNewChild);
    2366             :         return poNewChild->importFromWkt(ppszInput);
    2367             :     }
    2368             : #endif
    2369             : }
    2370             : 
    2371             : /*! @endcond */
    2372             : 
    2373             : /**
    2374             :  * \brief Import from WKT string.
    2375             :  *
    2376             :  * This method will wipe the existing SRS definition, and
    2377             :  * reassign it based on the contents of the passed WKT string.  Only as
    2378             :  * much of the input string as needed to construct this SRS is consumed from
    2379             :  * the input string, and the input string pointer
    2380             :  * is then updated to point to the remaining (unused) input.
    2381             :  *
    2382             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    2383             :  * Issues</a> page for implementation details of WKT in OGR.
    2384             :  *
    2385             :  * This method is the same as the C function OSRImportFromWkt().
    2386             :  *
    2387             :  * @param ppszInput Pointer to pointer to input.  The pointer is updated to
    2388             :  * point to remaining unused input text.
    2389             :  *
    2390             :  * @return OGRERR_NONE if import succeeds, or OGRERR_CORRUPT_DATA if it
    2391             :  * fails for any reason.
    2392             :  * @deprecated Use importFromWkt(const char**) or importFromWkt(const
    2393             :  * char*)
    2394             :  */
    2395             : 
    2396           0 : OGRErr OGRSpatialReference::importFromWkt(char **ppszInput)
    2397             : 
    2398             : {
    2399           0 :     return importFromWkt(const_cast<const char **>(ppszInput));
    2400             : }
    2401             : 
    2402             : /**
    2403             :  * \brief Import from WKT string.
    2404             :  *
    2405             :  * This method will wipe the existing SRS definition, and
    2406             :  * reassign it based on the contents of the passed WKT string.  Only as
    2407             :  * much of the input string as needed to construct this SRS is consumed from
    2408             :  * the input string, and the input string pointer
    2409             :  * is then updated to point to the remaining (unused) input.
    2410             :  *
    2411             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    2412             :  * Issues</a> page for implementation details of WKT in OGR.
    2413             :  *
    2414             :  * @param pszInput Input WKT
    2415             :  *
    2416             :  * @return OGRERR_NONE if import succeeds, or OGRERR_CORRUPT_DATA if it
    2417             :  * fails for any reason.
    2418             :  */
    2419             : 
    2420       20001 : OGRErr OGRSpatialReference::importFromWkt(const char *pszInput)
    2421             : {
    2422       20001 :     return importFromWkt(&pszInput);
    2423             : }
    2424             : 
    2425             : /************************************************************************/
    2426             : /*                              Validate()                              */
    2427             : /************************************************************************/
    2428             : 
    2429             : /**
    2430             :  * \brief Validate CRS imported with importFromWkt() or with modified with
    2431             :  * direct node manipulations. Otherwise the CRS should be always valid.
    2432             :  *
    2433             :  * This method attempts to verify that the spatial reference system is
    2434             :  * well formed, and consists of known tokens.  The validation is not
    2435             :  * comprehensive.
    2436             :  *
    2437             :  * This method is the same as the C function OSRValidate().
    2438             :  *
    2439             :  * @return OGRERR_NONE if all is fine, OGRERR_CORRUPT_DATA if the SRS is
    2440             :  * not well formed, and OGRERR_UNSUPPORTED_SRS if the SRS is well formed,
    2441             :  * but contains non-standard PROJECTION[] values.
    2442             :  */
    2443             : 
    2444         116 : OGRErr OGRSpatialReference::Validate() const
    2445             : 
    2446             : {
    2447         232 :     TAKE_OPTIONAL_LOCK();
    2448             : 
    2449         154 :     for (const auto &str : d->m_wktImportErrors)
    2450             :     {
    2451          38 :         CPLDebug("OGRSpatialReference::Validate", "%s", str.c_str());
    2452             :     }
    2453         116 :     for (const auto &str : d->m_wktImportWarnings)
    2454             :     {
    2455           0 :         CPLDebug("OGRSpatialReference::Validate", "%s", str.c_str());
    2456             :     }
    2457         116 :     if (!d->m_pj_crs || !d->m_wktImportErrors.empty())
    2458             :     {
    2459          37 :         return OGRERR_CORRUPT_DATA;
    2460             :     }
    2461          79 :     if (!d->m_wktImportWarnings.empty())
    2462             :     {
    2463           0 :         return OGRERR_UNSUPPORTED_SRS;
    2464             :     }
    2465          79 :     return OGRERR_NONE;
    2466             : }
    2467             : 
    2468             : /************************************************************************/
    2469             : /*                            OSRValidate()                             */
    2470             : /************************************************************************/
    2471             : /**
    2472             :  * \brief Validate SRS tokens.
    2473             :  *
    2474             :  * This function is the same as the C++ method OGRSpatialReference::Validate().
    2475             :  */
    2476         114 : OGRErr OSRValidate(OGRSpatialReferenceH hSRS)
    2477             : 
    2478             : {
    2479         114 :     VALIDATE_POINTER1(hSRS, "OSRValidate", OGRERR_FAILURE);
    2480             : 
    2481         114 :     return OGRSpatialReference::FromHandle(hSRS)->Validate();
    2482             : }
    2483             : 
    2484             : /************************************************************************/
    2485             : /*                          OSRImportFromWkt()                          */
    2486             : /************************************************************************/
    2487             : 
    2488             : /**
    2489             :  * \brief Import from WKT string.
    2490             :  *
    2491             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    2492             :  * Issues</a> page for implementation details of WKT in OGR.
    2493             :  *
    2494             :  * This function is the same as OGRSpatialReference::importFromWkt().
    2495             :  */
    2496             : 
    2497         265 : OGRErr OSRImportFromWkt(OGRSpatialReferenceH hSRS, char **ppszInput)
    2498             : 
    2499             : {
    2500         265 :     VALIDATE_POINTER1(hSRS, "OSRImportFromWkt", OGRERR_FAILURE);
    2501             : 
    2502         265 :     return ToPointer(hSRS)->importFromWkt(const_cast<const char **>(ppszInput));
    2503             : }
    2504             : 
    2505             : /************************************************************************/
    2506             : /*                              SetNode()                               */
    2507             : /************************************************************************/
    2508             : 
    2509             : /**
    2510             :  * \brief Set attribute value in spatial reference.
    2511             :  *
    2512             :  * Missing intermediate nodes in the path will be created if not already
    2513             :  * in existence.  If the attribute has no children one will be created and
    2514             :  * assigned the value otherwise the zeroth child will be assigned the value.
    2515             :  *
    2516             :  * This method does the same as the C function OSRSetAttrValue().
    2517             :  *
    2518             :  * @param pszNodePath full path to attribute to be set.  For instance
    2519             :  * "PROJCS|GEOGCS|UNIT".
    2520             :  *
    2521             :  * @param pszNewNodeValue value to be assigned to node, such as "meter".
    2522             :  * This may be NULL if you just want to force creation of the intermediate
    2523             :  * path.
    2524             :  *
    2525             :  * @return OGRERR_NONE on success.
    2526             :  */
    2527             : 
    2528         583 : OGRErr OGRSpatialReference::SetNode(const char *pszNodePath,
    2529             :                                     const char *pszNewNodeValue)
    2530             : 
    2531             : {
    2532        1166 :     TAKE_OPTIONAL_LOCK();
    2533             : 
    2534             :     char **papszPathTokens =
    2535         583 :         CSLTokenizeStringComplex(pszNodePath, "|", TRUE, FALSE);
    2536             : 
    2537         583 :     if (CSLCount(papszPathTokens) < 1)
    2538             :     {
    2539           0 :         CSLDestroy(papszPathTokens);
    2540           0 :         return OGRERR_FAILURE;
    2541             :     }
    2542             : 
    2543        1018 :     if (GetRoot() == nullptr ||
    2544         435 :         !EQUAL(papszPathTokens[0], GetRoot()->GetValue()))
    2545             :     {
    2546         268 :         if (EQUAL(papszPathTokens[0], "PROJCS") &&
    2547         116 :             CSLCount(papszPathTokens) == 1)
    2548             :         {
    2549         116 :             CSLDestroy(papszPathTokens);
    2550         116 :             return SetProjCS(pszNewNodeValue);
    2551             :         }
    2552             :         else
    2553             :         {
    2554          36 :             SetRoot(new OGR_SRSNode(papszPathTokens[0]));
    2555             :         }
    2556             :     }
    2557             : 
    2558         467 :     OGR_SRSNode *poNode = GetRoot();
    2559         725 :     for (int i = 1; papszPathTokens[i] != nullptr; i++)
    2560             :     {
    2561         258 :         int j = 0;  // Used after for.
    2562             : 
    2563         645 :         for (; j < poNode->GetChildCount(); j++)
    2564             :         {
    2565         585 :             if (EQUAL(poNode->GetChild(j)->GetValue(), papszPathTokens[i]))
    2566             :             {
    2567         198 :                 poNode = poNode->GetChild(j);
    2568         198 :                 j = -1;
    2569         198 :                 break;
    2570             :             }
    2571             :         }
    2572             : 
    2573         258 :         if (j != -1)
    2574             :         {
    2575          60 :             OGR_SRSNode *poNewNode = new OGR_SRSNode(papszPathTokens[i]);
    2576          60 :             poNode->AddChild(poNewNode);
    2577          60 :             poNode = poNewNode;
    2578             :         }
    2579             :     }
    2580             : 
    2581         467 :     CSLDestroy(papszPathTokens);
    2582             : 
    2583         467 :     if (pszNewNodeValue != nullptr)
    2584             :     {
    2585         467 :         if (poNode->GetChildCount() > 0)
    2586         371 :             poNode->GetChild(0)->SetValue(pszNewNodeValue);
    2587             :         else
    2588          96 :             poNode->AddChild(new OGR_SRSNode(pszNewNodeValue));
    2589             :     };
    2590         467 :     return OGRERR_NONE;
    2591             : }
    2592             : 
    2593             : /************************************************************************/
    2594             : /*                          OSRSetAttrValue()                           */
    2595             : /************************************************************************/
    2596             : 
    2597             : /**
    2598             :  * \brief Set attribute value in spatial reference.
    2599             :  *
    2600             :  * This function is the same as OGRSpatialReference::SetNode()
    2601             :  */
    2602           1 : OGRErr CPL_STDCALL OSRSetAttrValue(OGRSpatialReferenceH hSRS,
    2603             :                                    const char *pszPath, const char *pszValue)
    2604             : 
    2605             : {
    2606           1 :     VALIDATE_POINTER1(hSRS, "OSRSetAttrValue", OGRERR_FAILURE);
    2607             : 
    2608           1 :     return ToPointer(hSRS)->SetNode(pszPath, pszValue);
    2609             : }
    2610             : 
    2611             : /************************************************************************/
    2612             : /*                              SetNode()                               */
    2613             : /************************************************************************/
    2614             : 
    2615             : /**
    2616             :  * \brief Set attribute value in spatial reference.
    2617             :  *
    2618             :  * Missing intermediate nodes in the path will be created if not already
    2619             :  * in existence.  If the attribute has no children one will be created and
    2620             :  * assigned the value otherwise the zeroth child will be assigned the value.
    2621             :  *
    2622             :  * This method does the same as the C function OSRSetAttrValue().
    2623             :  *
    2624             :  * @param pszNodePath full path to attribute to be set.  For instance
    2625             :  * "PROJCS|GEOGCS|UNIT".
    2626             :  *
    2627             :  * @param dfValue value to be assigned to node.
    2628             :  *
    2629             :  * @return OGRERR_NONE on success.
    2630             :  */
    2631             : 
    2632           0 : OGRErr OGRSpatialReference::SetNode(const char *pszNodePath, double dfValue)
    2633             : 
    2634             : {
    2635           0 :     char szValue[64] = {'\0'};
    2636             : 
    2637           0 :     if (std::abs(dfValue - static_cast<int>(dfValue)) == 0.0)
    2638           0 :         snprintf(szValue, sizeof(szValue), "%d", static_cast<int>(dfValue));
    2639             :     else
    2640           0 :         OGRsnPrintDouble(szValue, sizeof(szValue), dfValue);
    2641             : 
    2642           0 :     return SetNode(pszNodePath, szValue);
    2643             : }
    2644             : 
    2645             : /************************************************************************/
    2646             : /*                          SetAngularUnits()                           */
    2647             : /************************************************************************/
    2648             : 
    2649             : /**
    2650             :  * \brief Set the angular units for the geographic coordinate system.
    2651             :  *
    2652             :  * This method creates a UNIT subnode with the specified values as a
    2653             :  * child of the GEOGCS node.
    2654             :  *
    2655             :  * This method does the same as the C function OSRSetAngularUnits().
    2656             :  *
    2657             :  * @param pszUnitsName the units name to be used.  Some preferred units
    2658             :  * names can be found in ogr_srs_api.h such as SRS_UA_DEGREE.
    2659             :  *
    2660             :  * @param dfInRadians the value to multiple by an angle in the indicated
    2661             :  * units to transform to radians.  Some standard conversion factors can
    2662             :  * be found in ogr_srs_api.h.
    2663             :  *
    2664             :  * @return OGRERR_NONE on success.
    2665             :  */
    2666             : 
    2667        1521 : OGRErr OGRSpatialReference::SetAngularUnits(const char *pszUnitsName,
    2668             :                                             double dfInRadians)
    2669             : 
    2670             : {
    2671        3042 :     TAKE_OPTIONAL_LOCK();
    2672             : 
    2673        1521 :     d->bNormInfoSet = FALSE;
    2674             : 
    2675        1521 :     d->refreshProjObj();
    2676        1521 :     if (!d->m_pj_crs)
    2677           0 :         return OGRERR_FAILURE;
    2678        1521 :     auto geodCRS = proj_crs_get_geodetic_crs(d->getPROJContext(), d->m_pj_crs);
    2679        1521 :     if (!geodCRS)
    2680           0 :         return OGRERR_FAILURE;
    2681        1521 :     proj_destroy(geodCRS);
    2682        1521 :     d->demoteFromBoundCRS();
    2683        1521 :     d->setPjCRS(proj_crs_alter_cs_angular_unit(d->getPROJContext(), d->m_pj_crs,
    2684             :                                                pszUnitsName, dfInRadians,
    2685             :                                                nullptr, nullptr));
    2686        1521 :     d->undoDemoteFromBoundCRS();
    2687             : 
    2688        1521 :     d->m_osAngularUnits = pszUnitsName;
    2689        1521 :     d->m_dfAngularUnitToRadian = dfInRadians;
    2690             : 
    2691        1521 :     return OGRERR_NONE;
    2692             : }
    2693             : 
    2694             : /************************************************************************/
    2695             : /*                         OSRSetAngularUnits()                         */
    2696             : /************************************************************************/
    2697             : 
    2698             : /**
    2699             :  * \brief Set the angular units for the geographic coordinate system.
    2700             :  *
    2701             :  * This function is the same as OGRSpatialReference::SetAngularUnits()
    2702             :  */
    2703          48 : OGRErr OSRSetAngularUnits(OGRSpatialReferenceH hSRS, const char *pszUnits,
    2704             :                           double dfInRadians)
    2705             : 
    2706             : {
    2707          48 :     VALIDATE_POINTER1(hSRS, "OSRSetAngularUnits", OGRERR_FAILURE);
    2708             : 
    2709          48 :     return ToPointer(hSRS)->SetAngularUnits(pszUnits, dfInRadians);
    2710             : }
    2711             : 
    2712             : /************************************************************************/
    2713             : /*                          GetAngularUnits()                           */
    2714             : /************************************************************************/
    2715             : 
    2716             : /**
    2717             :  * \brief Fetch angular geographic coordinate system units.
    2718             :  *
    2719             :  * If no units are available, a value of "degree" and SRS_UA_DEGREE_CONV
    2720             :  * will be assumed.  This method only checks directly under the GEOGCS node
    2721             :  * for units.
    2722             :  *
    2723             :  * This method does the same thing as the C function OSRGetAngularUnits().
    2724             :  *
    2725             :  * @param ppszName a pointer to be updated with the pointer to the units name.
    2726             :  * The returned value remains internal to the OGRSpatialReference and should
    2727             :  * not be freed, or modified.  It may be invalidated on the next
    2728             :  * OGRSpatialReference call.
    2729             :  *
    2730             :  * @return the value to multiply by angular distances to transform them to
    2731             :  * radians.
    2732             :  */
    2733             : 
    2734        8642 : double OGRSpatialReference::GetAngularUnits(const char **ppszName) const
    2735             : 
    2736             : {
    2737       17284 :     TAKE_OPTIONAL_LOCK();
    2738             : 
    2739        8642 :     d->refreshProjObj();
    2740             : 
    2741        8642 :     if (!d->m_osAngularUnits.empty())
    2742             :     {
    2743        2379 :         if (ppszName != nullptr)
    2744         182 :             *ppszName = d->m_osAngularUnits.c_str();
    2745        2379 :         return d->m_dfAngularUnitToRadian;
    2746             :     }
    2747             : 
    2748             :     do
    2749             :     {
    2750        6263 :         if (d->m_pj_crs == nullptr || d->m_pjType == PJ_TYPE_ENGINEERING_CRS)
    2751             :         {
    2752         113 :             break;
    2753             :         }
    2754             : 
    2755             :         auto geodCRS =
    2756        6152 :             proj_crs_get_geodetic_crs(d->getPROJContext(), d->m_pj_crs);
    2757        6152 :         if (!geodCRS)
    2758             :         {
    2759           0 :             break;
    2760             :         }
    2761             :         auto coordSys =
    2762        6152 :             proj_crs_get_coordinate_system(d->getPROJContext(), geodCRS);
    2763        6152 :         proj_destroy(geodCRS);
    2764        6152 :         if (!coordSys)
    2765             :         {
    2766           0 :             break;
    2767             :         }
    2768        6152 :         if (proj_cs_get_type(d->getPROJContext(), coordSys) !=
    2769             :             PJ_CS_TYPE_ELLIPSOIDAL)
    2770             :         {
    2771           2 :             proj_destroy(coordSys);
    2772           2 :             break;
    2773             :         }
    2774             : 
    2775        6150 :         double dfConvFactor = 0.0;
    2776        6150 :         const char *pszUnitName = nullptr;
    2777        6150 :         if (!proj_cs_get_axis_info(d->getPROJContext(), coordSys, 0, nullptr,
    2778             :                                    nullptr, nullptr, &dfConvFactor,
    2779             :                                    &pszUnitName, nullptr, nullptr))
    2780             :         {
    2781           0 :             proj_destroy(coordSys);
    2782           0 :             break;
    2783             :         }
    2784             : 
    2785        6150 :         d->m_osAngularUnits = pszUnitName;
    2786             : 
    2787        6150 :         proj_destroy(coordSys);
    2788        6150 :         d->m_dfAngularUnitToRadian = dfConvFactor;
    2789             :     } while (false);
    2790             : 
    2791        6263 :     if (d->m_osAngularUnits.empty())
    2792             :     {
    2793         113 :         d->m_osAngularUnits = "degree";
    2794         113 :         d->m_dfAngularUnitToRadian = CPLAtof(SRS_UA_DEGREE_CONV);
    2795             :     }
    2796             : 
    2797        6263 :     if (ppszName != nullptr)
    2798        3218 :         *ppszName = d->m_osAngularUnits.c_str();
    2799        6263 :     return d->m_dfAngularUnitToRadian;
    2800             : }
    2801             : 
    2802             : /**
    2803             :  * \brief Fetch angular geographic coordinate system units.
    2804             :  *
    2805             :  * If no units are available, a value of "degree" and SRS_UA_DEGREE_CONV
    2806             :  * will be assumed.  This method only checks directly under the GEOGCS node
    2807             :  * for units.
    2808             :  *
    2809             :  * This method does the same thing as the C function OSRGetAngularUnits().
    2810             :  *
    2811             :  * @param ppszName a pointer to be updated with the pointer to the units name.
    2812             :  * The returned value remains internal to the OGRSpatialReference and should
    2813             :  * not be freed, or modified.  It may be invalidated on the next
    2814             :  * OGRSpatialReference call.
    2815             :  *
    2816             :  * @return the value to multiply by angular distances to transform them to
    2817             :  * radians.
    2818             :  * @deprecated Use GetAngularUnits(const char**) const.
    2819             :  */
    2820             : 
    2821           0 : double OGRSpatialReference::GetAngularUnits(char **ppszName) const
    2822             : 
    2823             : {
    2824           0 :     return GetAngularUnits(const_cast<const char **>(ppszName));
    2825             : }
    2826             : 
    2827             : /************************************************************************/
    2828             : /*                         OSRGetAngularUnits()                         */
    2829             : /************************************************************************/
    2830             : 
    2831             : /**
    2832             :  * \brief Fetch angular geographic coordinate system units.
    2833             :  *
    2834             :  * This function is the same as OGRSpatialReference::GetAngularUnits()
    2835             :  */
    2836           1 : double OSRGetAngularUnits(OGRSpatialReferenceH hSRS, char **ppszName)
    2837             : 
    2838             : {
    2839           1 :     VALIDATE_POINTER1(hSRS, "OSRGetAngularUnits", 0);
    2840             : 
    2841           1 :     return ToPointer(hSRS)->GetAngularUnits(
    2842           1 :         const_cast<const char **>(ppszName));
    2843             : }
    2844             : 
    2845             : /************************************************************************/
    2846             : /*                 SetLinearUnitsAndUpdateParameters()                  */
    2847             : /************************************************************************/
    2848             : 
    2849             : /**
    2850             :  * \brief Set the linear units for the projection.
    2851             :  *
    2852             :  * This method creates a UNIT subnode with the specified values as a
    2853             :  * child of the PROJCS or LOCAL_CS node.   It works the same as the
    2854             :  * SetLinearUnits() method, but it also updates all existing linear
    2855             :  * projection parameter values from the old units to the new units.
    2856             :  *
    2857             :  * @param pszName the units name to be used.  Some preferred units
    2858             :  * names can be found in ogr_srs_api.h such as SRS_UL_METER, SRS_UL_FOOT
    2859             :  * and SRS_UL_US_FOOT.
    2860             :  *
    2861             :  * @param dfInMeters the value to multiple by a length in the indicated
    2862             :  * units to transform to meters.  Some standard conversion factors can
    2863             :  * be found in ogr_srs_api.h.
    2864             :  *
    2865             :  * @param pszUnitAuthority Unit authority name. Or nullptr
    2866             :  *
    2867             :  * @param pszUnitCode Unit code. Or nullptr
    2868             :  *
    2869             :  * @return OGRERR_NONE on success.
    2870             :  */
    2871             : 
    2872          39 : OGRErr OGRSpatialReference::SetLinearUnitsAndUpdateParameters(
    2873             :     const char *pszName, double dfInMeters, const char *pszUnitAuthority,
    2874             :     const char *pszUnitCode)
    2875             : 
    2876             : {
    2877          78 :     TAKE_OPTIONAL_LOCK();
    2878             : 
    2879          39 :     if (dfInMeters <= 0.0)
    2880           0 :         return OGRERR_FAILURE;
    2881             : 
    2882          39 :     d->refreshProjObj();
    2883          39 :     if (!d->m_pj_crs)
    2884           0 :         return OGRERR_FAILURE;
    2885             : 
    2886          39 :     d->demoteFromBoundCRS();
    2887          39 :     if (d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    2888             :     {
    2889          78 :         d->setPjCRS(proj_crs_alter_parameters_linear_unit(
    2890          39 :             d->getPROJContext(), d->m_pj_crs, pszName, dfInMeters,
    2891             :             pszUnitAuthority, pszUnitCode, true));
    2892             :     }
    2893          39 :     d->setPjCRS(proj_crs_alter_cs_linear_unit(d->getPROJContext(), d->m_pj_crs,
    2894             :                                               pszName, dfInMeters,
    2895             :                                               pszUnitAuthority, pszUnitCode));
    2896          39 :     d->undoDemoteFromBoundCRS();
    2897             : 
    2898          39 :     d->m_osLinearUnits = pszName;
    2899          39 :     d->dfToMeter = dfInMeters;
    2900             : 
    2901          39 :     return OGRERR_NONE;
    2902             : }
    2903             : 
    2904             : /************************************************************************/
    2905             : /*                OSRSetLinearUnitsAndUpdateParameters()                */
    2906             : /************************************************************************/
    2907             : 
    2908             : /**
    2909             :  * \brief Set the linear units for the projection.
    2910             :  *
    2911             :  * This function is the same as
    2912             :  *   OGRSpatialReference::SetLinearUnitsAndUpdateParameters()
    2913             :  */
    2914           1 : OGRErr OSRSetLinearUnitsAndUpdateParameters(OGRSpatialReferenceH hSRS,
    2915             :                                             const char *pszUnits,
    2916             :                                             double dfInMeters)
    2917             : 
    2918             : {
    2919           1 :     VALIDATE_POINTER1(hSRS, "OSRSetLinearUnitsAndUpdateParameters",
    2920             :                       OGRERR_FAILURE);
    2921             : 
    2922           1 :     return ToPointer(hSRS)->SetLinearUnitsAndUpdateParameters(pszUnits,
    2923           1 :                                                               dfInMeters);
    2924             : }
    2925             : 
    2926             : /************************************************************************/
    2927             : /*                           SetLinearUnits()                           */
    2928             : /************************************************************************/
    2929             : 
    2930             : /**
    2931             :  * \brief Set the linear units for the projection.
    2932             :  *
    2933             :  * This method creates a UNIT subnode with the specified values as a
    2934             :  * child of the PROJCS, GEOCCS, GEOGCS or LOCAL_CS node. When called on a
    2935             :  * Geographic 3D CRS the vertical axis units will be set.
    2936             :  *
    2937             :  * This method does the same as the C function OSRSetLinearUnits().
    2938             :  *
    2939             :  * @param pszUnitsName the units name to be used.  Some preferred units
    2940             :  * names can be found in ogr_srs_api.h such as SRS_UL_METER, SRS_UL_FOOT
    2941             :  * and SRS_UL_US_FOOT.
    2942             :  *
    2943             :  * @param dfInMeters the value to multiple by a length in the indicated
    2944             :  * units to transform to meters.  Some standard conversion factors can
    2945             :  * be found in ogr_srs_api.h.
    2946             :  *
    2947             :  * @return OGRERR_NONE on success.
    2948             :  */
    2949             : 
    2950        7404 : OGRErr OGRSpatialReference::SetLinearUnits(const char *pszUnitsName,
    2951             :                                            double dfInMeters)
    2952             : 
    2953             : {
    2954        7404 :     return SetTargetLinearUnits(nullptr, pszUnitsName, dfInMeters);
    2955             : }
    2956             : 
    2957             : /************************************************************************/
    2958             : /*                         OSRSetLinearUnits()                          */
    2959             : /************************************************************************/
    2960             : 
    2961             : /**
    2962             :  * \brief Set the linear units for the projection.
    2963             :  *
    2964             :  * This function is the same as OGRSpatialReference::SetLinearUnits()
    2965             :  */
    2966           7 : OGRErr OSRSetLinearUnits(OGRSpatialReferenceH hSRS, const char *pszUnits,
    2967             :                          double dfInMeters)
    2968             : 
    2969             : {
    2970           7 :     VALIDATE_POINTER1(hSRS, "OSRSetLinearUnits", OGRERR_FAILURE);
    2971             : 
    2972           7 :     return ToPointer(hSRS)->SetLinearUnits(pszUnits, dfInMeters);
    2973             : }
    2974             : 
    2975             : /************************************************************************/
    2976             : /*                        SetTargetLinearUnits()                        */
    2977             : /************************************************************************/
    2978             : 
    2979             : /**
    2980             :  * \brief Set the linear units for the projection.
    2981             :  *
    2982             :  * This method creates a UNIT subnode with the specified values as a
    2983             :  * child of the target node.
    2984             :  *
    2985             :  * This method does the same as the C function OSRSetTargetLinearUnits().
    2986             :  *
    2987             :  * @param pszTargetKey the keyword to set the linear units for.
    2988             :  * i.e. "PROJCS" or "VERT_CS"
    2989             :  *
    2990             :  * @param pszUnitsName the units name to be used.  Some preferred units
    2991             :  * names can be found in ogr_srs_api.h such as SRS_UL_METER, SRS_UL_FOOT
    2992             :  * and SRS_UL_US_FOOT.
    2993             :  *
    2994             :  * @param dfInMeters the value to multiple by a length in the indicated
    2995             :  * units to transform to meters.  Some standard conversion factors can
    2996             :  * be found in ogr_srs_api.h.
    2997             :  *
    2998             :  * @param pszUnitAuthority Unit authority name. Or nullptr
    2999             :  *
    3000             :  * @param pszUnitCode Unit code. Or nullptr
    3001             :  *
    3002             :  * @return OGRERR_NONE on success.
    3003             :  *
    3004             :  */
    3005             : 
    3006       11856 : OGRErr OGRSpatialReference::SetTargetLinearUnits(const char *pszTargetKey,
    3007             :                                                  const char *pszUnitsName,
    3008             :                                                  double dfInMeters,
    3009             :                                                  const char *pszUnitAuthority,
    3010             :                                                  const char *pszUnitCode)
    3011             : 
    3012             : {
    3013       23712 :     TAKE_OPTIONAL_LOCK();
    3014             : 
    3015       11856 :     if (dfInMeters <= 0.0)
    3016           0 :         return OGRERR_FAILURE;
    3017             : 
    3018       11856 :     d->refreshProjObj();
    3019       11856 :     pszTargetKey = d->nullifyTargetKeyIfPossible(pszTargetKey);
    3020       11856 :     if (pszTargetKey == nullptr)
    3021             :     {
    3022       11856 :         if (!d->m_pj_crs)
    3023           0 :             return OGRERR_FAILURE;
    3024             : 
    3025       11856 :         d->demoteFromBoundCRS();
    3026       11856 :         if (d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    3027             :         {
    3028       17914 :             d->setPjCRS(proj_crs_alter_parameters_linear_unit(
    3029        8957 :                 d->getPROJContext(), d->m_pj_crs, pszUnitsName, dfInMeters,
    3030             :                 pszUnitAuthority, pszUnitCode, false));
    3031             :         }
    3032       23712 :         d->setPjCRS(proj_crs_alter_cs_linear_unit(
    3033       11856 :             d->getPROJContext(), d->m_pj_crs, pszUnitsName, dfInMeters,
    3034             :             pszUnitAuthority, pszUnitCode));
    3035       11856 :         d->undoDemoteFromBoundCRS();
    3036             : 
    3037       11856 :         d->m_osLinearUnits = pszUnitsName;
    3038       11856 :         d->dfToMeter = dfInMeters;
    3039             : 
    3040       11856 :         return OGRERR_NONE;
    3041             :     }
    3042             : 
    3043           0 :     OGR_SRSNode *poCS = GetAttrNode(pszTargetKey);
    3044             : 
    3045           0 :     if (poCS == nullptr)
    3046           0 :         return OGRERR_FAILURE;
    3047             : 
    3048           0 :     char szValue[128] = {'\0'};
    3049           0 :     if (dfInMeters < std::numeric_limits<int>::max() &&
    3050           0 :         dfInMeters > std::numeric_limits<int>::min() &&
    3051           0 :         dfInMeters == static_cast<int>(dfInMeters))
    3052           0 :         snprintf(szValue, sizeof(szValue), "%d", static_cast<int>(dfInMeters));
    3053             :     else
    3054           0 :         OGRsnPrintDouble(szValue, sizeof(szValue), dfInMeters);
    3055             : 
    3056           0 :     OGR_SRSNode *poUnits = nullptr;
    3057           0 :     if (poCS->FindChild("UNIT") >= 0)
    3058             :     {
    3059           0 :         poUnits = poCS->GetChild(poCS->FindChild("UNIT"));
    3060           0 :         if (poUnits->GetChildCount() < 2)
    3061           0 :             return OGRERR_FAILURE;
    3062           0 :         poUnits->GetChild(0)->SetValue(pszUnitsName);
    3063           0 :         poUnits->GetChild(1)->SetValue(szValue);
    3064           0 :         if (poUnits->FindChild("AUTHORITY") != -1)
    3065           0 :             poUnits->DestroyChild(poUnits->FindChild("AUTHORITY"));
    3066             :     }
    3067             :     else
    3068             :     {
    3069           0 :         poUnits = new OGR_SRSNode("UNIT");
    3070           0 :         poUnits->AddChild(new OGR_SRSNode(pszUnitsName));
    3071           0 :         poUnits->AddChild(new OGR_SRSNode(szValue));
    3072             : 
    3073           0 :         poCS->AddChild(poUnits);
    3074             :     }
    3075             : 
    3076           0 :     return OGRERR_NONE;
    3077             : }
    3078             : 
    3079             : /************************************************************************/
    3080             : /*                         OSRSetLinearUnits()                          */
    3081             : /************************************************************************/
    3082             : 
    3083             : /**
    3084             :  * \brief Set the linear units for the target node.
    3085             :  *
    3086             :  * This function is the same as OGRSpatialReference::SetTargetLinearUnits()
    3087             :  *
    3088             :  */
    3089           1 : OGRErr OSRSetTargetLinearUnits(OGRSpatialReferenceH hSRS,
    3090             :                                const char *pszTargetKey, const char *pszUnits,
    3091             :                                double dfInMeters)
    3092             : 
    3093             : {
    3094           1 :     VALIDATE_POINTER1(hSRS, "OSRSetTargetLinearUnits", OGRERR_FAILURE);
    3095             : 
    3096           1 :     return ToPointer(hSRS)->SetTargetLinearUnits(pszTargetKey, pszUnits,
    3097           1 :                                                  dfInMeters);
    3098             : }
    3099             : 
    3100             : /************************************************************************/
    3101             : /*                           GetLinearUnits()                           */
    3102             : /************************************************************************/
    3103             : 
    3104             : /**
    3105             :  * \brief Fetch linear projection units.
    3106             :  *
    3107             :  * If no units are available, a value of "Meters" and 1.0 will be assumed.
    3108             :  * This method only checks directly under the PROJCS, GEOCCS, GEOGCS or
    3109             :  * LOCAL_CS node for units. When called on a Geographic 3D CRS the vertical
    3110             :  * axis units will be returned.
    3111             :  *
    3112             :  * This method does the same thing as the C function OSRGetLinearUnits()
    3113             :  *
    3114             :  * @param ppszName a pointer to be updated with the pointer to the units name.
    3115             :  * The returned value remains internal to the OGRSpatialReference and should
    3116             :  * not be freed, or modified.  It may be invalidated on the next
    3117             :  * OGRSpatialReference call.
    3118             :  *
    3119             :  * @return the value to multiply by linear distances to transform them to
    3120             :  * meters.
    3121             :  * @deprecated Use GetLinearUnits(const char**) const.
    3122             :  */
    3123             : 
    3124           0 : double OGRSpatialReference::GetLinearUnits(char **ppszName) const
    3125             : 
    3126             : {
    3127           0 :     return GetTargetLinearUnits(nullptr, const_cast<const char **>(ppszName));
    3128             : }
    3129             : 
    3130             : /**
    3131             :  * \brief Fetch linear projection units.
    3132             :  *
    3133             :  * If no units are available, a value of "Meters" and 1.0 will be assumed.
    3134             :  * This method only checks directly under the PROJCS, GEOCCS or LOCAL_CS node
    3135             :  * for units.
    3136             :  *
    3137             :  * This method does the same thing as the C function OSRGetLinearUnits()
    3138             :  *
    3139             :  * @param ppszName a pointer to be updated with the pointer to the units name.
    3140             :  * The returned value remains internal to the OGRSpatialReference and should
    3141             :  * not be freed, or modified.  It may be invalidated on the next
    3142             :  * OGRSpatialReference call.
    3143             :  *
    3144             :  * @return the value to multiply by linear distances to transform them to
    3145             :  * meters.
    3146             :  */
    3147             : 
    3148       21345 : double OGRSpatialReference::GetLinearUnits(const char **ppszName) const
    3149             : 
    3150             : {
    3151       21345 :     return GetTargetLinearUnits(nullptr, ppszName);
    3152             : }
    3153             : 
    3154             : /************************************************************************/
    3155             : /*                         OSRGetLinearUnits()                          */
    3156             : /************************************************************************/
    3157             : 
    3158             : /**
    3159             :  * \brief Fetch linear projection units.
    3160             :  *
    3161             :  * This function is the same as OGRSpatialReference::GetLinearUnits()
    3162             :  */
    3163         255 : double OSRGetLinearUnits(OGRSpatialReferenceH hSRS, char **ppszName)
    3164             : 
    3165             : {
    3166         255 :     VALIDATE_POINTER1(hSRS, "OSRGetLinearUnits", 0);
    3167             : 
    3168         255 :     return ToPointer(hSRS)->GetLinearUnits(const_cast<const char **>(ppszName));
    3169             : }
    3170             : 
    3171             : /************************************************************************/
    3172             : /*                        GetTargetLinearUnits()                        */
    3173             : /************************************************************************/
    3174             : 
    3175             : /**
    3176             :  * \brief Fetch linear units for target.
    3177             :  *
    3178             :  * If no units are available, a value of "Meters" and 1.0 will be assumed.
    3179             :  *
    3180             :  * This method does the same thing as the C function OSRGetTargetLinearUnits()
    3181             :  *
    3182             :  * @param pszTargetKey the key to look on. i.e. "PROJCS" or "VERT_CS". Might be
    3183             :  * NULL, in which case PROJCS will be implied (and if not found, LOCAL_CS,
    3184             :  * GEOCCS, GEOGCS and VERT_CS are looked up)
    3185             :  * @param ppszName a pointer to be updated with the pointer to the units name.
    3186             :  * The returned value remains internal to the OGRSpatialReference and should not
    3187             :  * be freed, or modified.  It may be invalidated on the next
    3188             :  * OGRSpatialReference call. ppszName can be set to NULL.
    3189             :  *
    3190             :  * @return the value to multiply by linear distances to transform them to
    3191             :  * meters.
    3192             :  *
    3193             :  * @deprecated Use GetTargetLinearUnits(const char*, const char**)
    3194             :  * const.
    3195             :  */
    3196             : 
    3197       21496 : double OGRSpatialReference::GetTargetLinearUnits(const char *pszTargetKey,
    3198             :                                                  const char **ppszName) const
    3199             : 
    3200             : {
    3201       42992 :     TAKE_OPTIONAL_LOCK();
    3202             : 
    3203       21496 :     d->refreshProjObj();
    3204             : 
    3205       21496 :     pszTargetKey = d->nullifyTargetKeyIfPossible(pszTargetKey);
    3206       21496 :     if (pszTargetKey == nullptr)
    3207             :     {
    3208             :         // Use cached result if available
    3209       21405 :         if (!d->m_osLinearUnits.empty())
    3210             :         {
    3211        9105 :             if (ppszName)
    3212        8248 :                 *ppszName = d->m_osLinearUnits.c_str();
    3213        9105 :             return d->dfToMeter;
    3214             :         }
    3215             : 
    3216             :         while (true)
    3217             :         {
    3218       12300 :             if (d->m_pj_crs == nullptr)
    3219             :             {
    3220         242 :                 break;
    3221             :             }
    3222             : 
    3223       12058 :             d->demoteFromBoundCRS();
    3224       12058 :             PJ *coordSys = nullptr;
    3225       12058 :             if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    3226             :             {
    3227          37 :                 for (int iComponent = 0; iComponent < 2; iComponent++)
    3228             :                 {
    3229          37 :                     auto subCRS = proj_crs_get_sub_crs(d->getPROJContext(),
    3230          37 :                                                        d->m_pj_crs, iComponent);
    3231          37 :                     if (subCRS && proj_get_type(subCRS) == PJ_TYPE_BOUND_CRS)
    3232             :                     {
    3233             :                         auto temp =
    3234           0 :                             proj_get_source_crs(d->getPROJContext(), subCRS);
    3235           0 :                         proj_destroy(subCRS);
    3236           0 :                         subCRS = temp;
    3237             :                     }
    3238          74 :                     if (subCRS &&
    3239          37 :                         (proj_get_type(subCRS) == PJ_TYPE_PROJECTED_CRS ||
    3240          16 :                          proj_get_type(subCRS) == PJ_TYPE_ENGINEERING_CRS ||
    3241          12 :                          proj_get_type(subCRS) == PJ_TYPE_VERTICAL_CRS))
    3242             :                     {
    3243          31 :                         coordSys = proj_crs_get_coordinate_system(
    3244             :                             d->getPROJContext(), subCRS);
    3245          31 :                         proj_destroy(subCRS);
    3246          31 :                         break;
    3247             :                     }
    3248           6 :                     else if (subCRS)
    3249             :                     {
    3250           6 :                         proj_destroy(subCRS);
    3251             :                     }
    3252             :                 }
    3253          31 :                 if (coordSys == nullptr)
    3254             :                 {
    3255           0 :                     d->undoDemoteFromBoundCRS();
    3256           0 :                     break;
    3257             :                 }
    3258             :             }
    3259             :             else
    3260             :             {
    3261       12027 :                 coordSys = proj_crs_get_coordinate_system(d->getPROJContext(),
    3262       12027 :                                                           d->m_pj_crs);
    3263             :             }
    3264             : 
    3265       12058 :             d->undoDemoteFromBoundCRS();
    3266       12058 :             if (!coordSys)
    3267             :             {
    3268           0 :                 break;
    3269             :             }
    3270       12058 :             auto csType = proj_cs_get_type(d->getPROJContext(), coordSys);
    3271             : 
    3272       12058 :             if (csType != PJ_CS_TYPE_CARTESIAN &&
    3273        2252 :                 csType != PJ_CS_TYPE_VERTICAL &&
    3274           0 :                 csType != PJ_CS_TYPE_ELLIPSOIDAL &&
    3275             :                 csType != PJ_CS_TYPE_SPHERICAL)
    3276             :             {
    3277           0 :                 proj_destroy(coordSys);
    3278           0 :                 break;
    3279             :             }
    3280             : 
    3281       12058 :             int axis = 0;
    3282             : 
    3283       12058 :             if (csType == PJ_CS_TYPE_ELLIPSOIDAL ||
    3284             :                 csType == PJ_CS_TYPE_SPHERICAL)
    3285             :             {
    3286             :                 const int axisCount =
    3287        2252 :                     proj_cs_get_axis_count(d->getPROJContext(), coordSys);
    3288             : 
    3289        2252 :                 if (axisCount == 3)
    3290             :                 {
    3291           4 :                     axis = 2;
    3292             :                 }
    3293             :                 else
    3294             :                 {
    3295        2248 :                     proj_destroy(coordSys);
    3296        2248 :                     break;
    3297             :                 }
    3298             :             }
    3299             : 
    3300        9810 :             double dfConvFactor = 0.0;
    3301        9810 :             const char *pszUnitName = nullptr;
    3302        9810 :             if (!proj_cs_get_axis_info(d->getPROJContext(), coordSys, axis,
    3303             :                                        nullptr, nullptr, nullptr, &dfConvFactor,
    3304             :                                        &pszUnitName, nullptr, nullptr))
    3305             :             {
    3306           0 :                 proj_destroy(coordSys);
    3307           0 :                 break;
    3308             :             }
    3309             : 
    3310        9810 :             d->m_osLinearUnits = pszUnitName;
    3311        9810 :             d->dfToMeter = dfConvFactor;
    3312        9810 :             if (ppszName)
    3313        1264 :                 *ppszName = d->m_osLinearUnits.c_str();
    3314             : 
    3315        9810 :             proj_destroy(coordSys);
    3316        9810 :             return dfConvFactor;
    3317             :         }
    3318             : 
    3319        2490 :         d->m_osLinearUnits = "unknown";
    3320        2490 :         d->dfToMeter = 1.0;
    3321             : 
    3322        2490 :         if (ppszName != nullptr)
    3323        2304 :             *ppszName = d->m_osLinearUnits.c_str();
    3324        2490 :         return 1.0;
    3325             :     }
    3326             : 
    3327          91 :     const OGR_SRSNode *poCS = GetAttrNode(pszTargetKey);
    3328             : 
    3329          91 :     if (ppszName != nullptr)
    3330          37 :         *ppszName = "unknown";
    3331             : 
    3332          91 :     if (poCS == nullptr)
    3333          53 :         return 1.0;
    3334             : 
    3335         114 :     for (int iChild = 0; iChild < poCS->GetChildCount(); iChild++)
    3336             :     {
    3337         114 :         const OGR_SRSNode *poChild = poCS->GetChild(iChild);
    3338             : 
    3339         114 :         if (EQUAL(poChild->GetValue(), "UNIT") && poChild->GetChildCount() >= 2)
    3340             :         {
    3341          38 :             if (ppszName != nullptr)
    3342          37 :                 *ppszName = poChild->GetChild(0)->GetValue();
    3343             : 
    3344          38 :             return CPLAtof(poChild->GetChild(1)->GetValue());
    3345             :         }
    3346             :     }
    3347             : 
    3348           0 :     return 1.0;
    3349             : }
    3350             : 
    3351             : /**
    3352             :  * \brief Fetch linear units for target.
    3353             :  *
    3354             :  * If no units are available, a value of "Meters" and 1.0 will be assumed.
    3355             :  *
    3356             :  * This method does the same thing as the C function OSRGetTargetLinearUnits()
    3357             :  *
    3358             :  * @param pszTargetKey the key to look on. i.e. "PROJCS" or "VERT_CS". Might be
    3359             :  * NULL, in which case PROJCS will be implied (and if not found, LOCAL_CS,
    3360             :  * GEOCCS and VERT_CS are looked up)
    3361             :  * @param ppszName a pointer to be updated with the pointer to the units name.
    3362             :  * The returned value remains internal to the OGRSpatialReference and should not
    3363             :  * be freed, or modified.  It may be invalidated on the next
    3364             :  * OGRSpatialReference call. ppszName can be set to NULL.
    3365             :  *
    3366             :  * @return the value to multiply by linear distances to transform them to
    3367             :  * meters.
    3368             :  *
    3369             :  */
    3370             : 
    3371           0 : double OGRSpatialReference::GetTargetLinearUnits(const char *pszTargetKey,
    3372             :                                                  char **ppszName) const
    3373             : 
    3374             : {
    3375           0 :     return GetTargetLinearUnits(pszTargetKey,
    3376           0 :                                 const_cast<const char **>(ppszName));
    3377             : }
    3378             : 
    3379             : /************************************************************************/
    3380             : /*                      OSRGetTargetLinearUnits()                       */
    3381             : /************************************************************************/
    3382             : 
    3383             : /**
    3384             :  * \brief Fetch linear projection units.
    3385             :  *
    3386             :  * This function is the same as OGRSpatialReference::GetTargetLinearUnits()
    3387             :  *
    3388             :  */
    3389           4 : double OSRGetTargetLinearUnits(OGRSpatialReferenceH hSRS,
    3390             :                                const char *pszTargetKey, char **ppszName)
    3391             : 
    3392             : {
    3393           4 :     VALIDATE_POINTER1(hSRS, "OSRGetTargetLinearUnits", 0);
    3394             : 
    3395           4 :     return ToPointer(hSRS)->GetTargetLinearUnits(
    3396           4 :         pszTargetKey, const_cast<const char **>(ppszName));
    3397             : }
    3398             : 
    3399             : /************************************************************************/
    3400             : /*                          GetPrimeMeridian()                          */
    3401             : /************************************************************************/
    3402             : 
    3403             : /**
    3404             :  * \brief Fetch prime meridian info.
    3405             :  *
    3406             :  * Returns the offset of the prime meridian from greenwich in degrees,
    3407             :  * and the prime meridian name (if requested).   If no PRIMEM value exists
    3408             :  * in the coordinate system definition a value of "Greenwich" and an
    3409             :  * offset of 0.0 is assumed.
    3410             :  *
    3411             :  * If the prime meridian name is returned, the pointer is to an internal
    3412             :  * copy of the name. It should not be freed, altered or depended on after
    3413             :  * the next OGR call.
    3414             :  *
    3415             :  * This method is the same as the C function OSRGetPrimeMeridian().
    3416             :  *
    3417             :  * @param ppszName return location for prime meridian name.  If NULL, name
    3418             :  * is not returned.
    3419             :  *
    3420             :  * @return the offset to the GEOGCS prime meridian from greenwich in decimal
    3421             :  * degrees.
    3422             :  * @deprecated Use GetPrimeMeridian(const char**) const.
    3423             :  */
    3424             : 
    3425        1536 : double OGRSpatialReference::GetPrimeMeridian(const char **ppszName) const
    3426             : 
    3427             : {
    3428        3072 :     TAKE_OPTIONAL_LOCK();
    3429             : 
    3430        1536 :     d->refreshProjObj();
    3431             : 
    3432        1536 :     if (!d->m_osPrimeMeridianName.empty())
    3433             :     {
    3434          87 :         if (ppszName != nullptr)
    3435          11 :             *ppszName = d->m_osPrimeMeridianName.c_str();
    3436          87 :         return d->dfFromGreenwich;
    3437             :     }
    3438             : 
    3439             :     while (true)
    3440             :     {
    3441        1449 :         if (!d->m_pj_crs)
    3442           0 :             break;
    3443             : 
    3444        1449 :         auto pm = proj_get_prime_meridian(d->getPROJContext(), d->m_pj_crs);
    3445        1449 :         if (!pm)
    3446           0 :             break;
    3447             : 
    3448        1449 :         d->m_osPrimeMeridianName = proj_get_name(pm);
    3449        1449 :         if (ppszName)
    3450          20 :             *ppszName = d->m_osPrimeMeridianName.c_str();
    3451        1449 :         double dfLongitude = 0.0;
    3452        1449 :         double dfConvFactor = 0.0;
    3453        1449 :         proj_prime_meridian_get_parameters(
    3454             :             d->getPROJContext(), pm, &dfLongitude, &dfConvFactor, nullptr);
    3455        1449 :         proj_destroy(pm);
    3456        2898 :         d->dfFromGreenwich =
    3457        1449 :             dfLongitude * dfConvFactor / CPLAtof(SRS_UA_DEGREE_CONV);
    3458        1449 :         return d->dfFromGreenwich;
    3459             :     }
    3460             : 
    3461           0 :     d->m_osPrimeMeridianName = SRS_PM_GREENWICH;
    3462           0 :     d->dfFromGreenwich = 0.0;
    3463           0 :     if (ppszName != nullptr)
    3464           0 :         *ppszName = d->m_osPrimeMeridianName.c_str();
    3465           0 :     return d->dfFromGreenwich;
    3466             : }
    3467             : 
    3468             : /**
    3469             :  * \brief Fetch prime meridian info.
    3470             :  *
    3471             :  * Returns the offset of the prime meridian from greenwich in degrees,
    3472             :  * and the prime meridian name (if requested).   If no PRIMEM value exists
    3473             :  * in the coordinate system definition a value of "Greenwich" and an
    3474             :  * offset of 0.0 is assumed.
    3475             :  *
    3476             :  * If the prime meridian name is returned, the pointer is to an internal
    3477             :  * copy of the name. It should not be freed, altered or depended on after
    3478             :  * the next OGR call.
    3479             :  *
    3480             :  * This method is the same as the C function OSRGetPrimeMeridian().
    3481             :  *
    3482             :  * @param ppszName return location for prime meridian name.  If NULL, name
    3483             :  * is not returned.
    3484             :  *
    3485             :  * @return the offset to the GEOGCS prime meridian from greenwich in decimal
    3486             :  * degrees.
    3487             :  */
    3488             : 
    3489           0 : double OGRSpatialReference::GetPrimeMeridian(char **ppszName) const
    3490             : 
    3491             : {
    3492           0 :     return GetPrimeMeridian(const_cast<const char **>(ppszName));
    3493             : }
    3494             : 
    3495             : /************************************************************************/
    3496             : /*                        OSRGetPrimeMeridian()                         */
    3497             : /************************************************************************/
    3498             : 
    3499             : /**
    3500             :  * \brief Fetch prime meridian info.
    3501             :  *
    3502             :  * This function is the same as OGRSpatialReference::GetPrimeMeridian()
    3503             :  */
    3504           0 : double OSRGetPrimeMeridian(OGRSpatialReferenceH hSRS, char **ppszName)
    3505             : 
    3506             : {
    3507           0 :     VALIDATE_POINTER1(hSRS, "OSRGetPrimeMeridian", 0);
    3508             : 
    3509           0 :     return ToPointer(hSRS)->GetPrimeMeridian(
    3510           0 :         const_cast<const char **>(ppszName));
    3511             : }
    3512             : 
    3513             : /************************************************************************/
    3514             : /*                             SetGeogCS()                              */
    3515             : /************************************************************************/
    3516             : 
    3517             : /**
    3518             :  * \brief Set geographic coordinate system.
    3519             :  *
    3520             :  * This method is used to set the datum, ellipsoid, prime meridian and
    3521             :  * angular units for a geographic coordinate system.  It can be used on its
    3522             :  * own to establish a geographic spatial reference, or applied to a
    3523             :  * projected coordinate system to establish the underlying geographic
    3524             :  * coordinate system.
    3525             :  *
    3526             :  * This method does the same as the C function OSRSetGeogCS().
    3527             :  *
    3528             :  * @param pszGeogName user visible name for the geographic coordinate system
    3529             :  * (not to serve as a key).
    3530             :  *
    3531             :  * @param pszDatumName key name for this datum.  The OpenGIS specification
    3532             :  * lists some known values, and otherwise EPSG datum names with a standard
    3533             :  * transformation are considered legal keys.
    3534             :  *
    3535             :  * @param pszSpheroidName user visible spheroid name (not to serve as a key)
    3536             :  *
    3537             :  * @param dfSemiMajor the semi major axis of the spheroid.
    3538             :  *
    3539             :  * @param dfInvFlattening the inverse flattening for the spheroid.
    3540             :  * This can be computed from the semi minor axis as
    3541             :  * 1/f = 1.0 / (1.0 - semiminor/semimajor).
    3542             :  *
    3543             :  * @param pszPMName the name of the prime meridian (not to serve as a key)
    3544             :  * If this is NULL a default value of "Greenwich" will be used.
    3545             :  *
    3546             :  * @param dfPMOffset the longitude of Greenwich relative to this prime
    3547             :  * meridian. Always in Degrees
    3548             :  *
    3549             :  * @param pszAngularUnits the angular units name (see ogr_srs_api.h for some
    3550             :  * standard names).  If NULL a value of "degrees" will be assumed.
    3551             :  *
    3552             :  * @param dfConvertToRadians value to multiply angular units by to transform
    3553             :  * them to radians.  A value of SRS_UA_DEGREE_CONV will be used if
    3554             :  * pszAngularUnits is NULL.
    3555             :  *
    3556             :  * @return OGRERR_NONE on success.
    3557             :  */
    3558             : 
    3559        9714 : OGRErr OGRSpatialReference::SetGeogCS(
    3560             :     const char *pszGeogName, const char *pszDatumName,
    3561             :     const char *pszSpheroidName, double dfSemiMajor, double dfInvFlattening,
    3562             :     const char *pszPMName, double dfPMOffset, const char *pszAngularUnits,
    3563             :     double dfConvertToRadians)
    3564             : 
    3565             : {
    3566       19428 :     TAKE_OPTIONAL_LOCK();
    3567             : 
    3568        9714 :     d->bNormInfoSet = FALSE;
    3569        9714 :     d->m_osAngularUnits.clear();
    3570        9714 :     d->m_dfAngularUnitToRadian = 0.0;
    3571        9714 :     d->m_osPrimeMeridianName.clear();
    3572        9714 :     d->dfFromGreenwich = 0.0;
    3573             : 
    3574             :     /* -------------------------------------------------------------------- */
    3575             :     /*      For a geocentric coordinate system we want to set the datum     */
    3576             :     /*      and ellipsoid based on the GEOGCS.  Create the GEOGCS in a      */
    3577             :     /*      temporary srs and use the copy method which has special         */
    3578             :     /*      handling for GEOCCS.                                            */
    3579             :     /* -------------------------------------------------------------------- */
    3580        9714 :     if (IsGeocentric())
    3581             :     {
    3582           4 :         OGRSpatialReference oGCS;
    3583             : 
    3584           2 :         oGCS.SetGeogCS(pszGeogName, pszDatumName, pszSpheroidName, dfSemiMajor,
    3585             :                        dfInvFlattening, pszPMName, dfPMOffset, pszAngularUnits,
    3586             :                        dfConvertToRadians);
    3587           2 :         return CopyGeogCSFrom(&oGCS);
    3588             :     }
    3589             : 
    3590        9712 :     auto cs = proj_create_ellipsoidal_2D_cs(
    3591             :         d->getPROJContext(), PJ_ELLPS2D_LATITUDE_LONGITUDE, pszAngularUnits,
    3592             :         dfConvertToRadians);
    3593             :     // Prime meridian expressed in Degree
    3594        9712 :     auto obj = proj_create_geographic_crs(
    3595             :         d->getPROJContext(), pszGeogName, pszDatumName, pszSpheroidName,
    3596             :         dfSemiMajor, dfInvFlattening, pszPMName, dfPMOffset, nullptr, 0.0, cs);
    3597        9712 :     proj_destroy(cs);
    3598             : 
    3599       14707 :     if (d->m_pj_crs == nullptr || d->m_pjType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    3600        4995 :         d->m_pjType == PJ_TYPE_GEOGRAPHIC_3D_CRS)
    3601             :     {
    3602        4717 :         d->setPjCRS(obj);
    3603             :     }
    3604        4995 :     else if (d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    3605             :     {
    3606        9990 :         d->setPjCRS(
    3607        4995 :             proj_crs_alter_geodetic_crs(d->getPROJContext(), d->m_pj_crs, obj));
    3608        4995 :         proj_destroy(obj);
    3609             :     }
    3610             :     else
    3611             :     {
    3612           0 :         proj_destroy(obj);
    3613             :     }
    3614             : 
    3615        9712 :     return OGRERR_NONE;
    3616             : }
    3617             : 
    3618             : /************************************************************************/
    3619             : /*                            OSRSetGeogCS()                            */
    3620             : /************************************************************************/
    3621             : 
    3622             : /**
    3623             :  * \brief Set geographic coordinate system.
    3624             :  *
    3625             :  * This function is the same as OGRSpatialReference::SetGeogCS()
    3626             :  */
    3627          18 : OGRErr OSRSetGeogCS(OGRSpatialReferenceH hSRS, const char *pszGeogName,
    3628             :                     const char *pszDatumName, const char *pszSpheroidName,
    3629             :                     double dfSemiMajor, double dfInvFlattening,
    3630             :                     const char *pszPMName, double dfPMOffset,
    3631             :                     const char *pszAngularUnits, double dfConvertToRadians)
    3632             : 
    3633             : {
    3634          18 :     VALIDATE_POINTER1(hSRS, "OSRSetGeogCS", OGRERR_FAILURE);
    3635             : 
    3636          18 :     return ToPointer(hSRS)->SetGeogCS(pszGeogName, pszDatumName,
    3637             :                                       pszSpheroidName, dfSemiMajor,
    3638             :                                       dfInvFlattening, pszPMName, dfPMOffset,
    3639          18 :                                       pszAngularUnits, dfConvertToRadians);
    3640             : }
    3641             : 
    3642             : /************************************************************************/
    3643             : /*                         SetWellKnownGeogCS()                         */
    3644             : /************************************************************************/
    3645             : 
    3646             : /**
    3647             :  * \brief Set a GeogCS based on well known name.
    3648             :  *
    3649             :  * This may be called on an empty OGRSpatialReference to make a geographic
    3650             :  * coordinate system, or on something with an existing PROJCS node to
    3651             :  * set the underlying geographic coordinate system of a projected coordinate
    3652             :  * system.
    3653             :  *
    3654             :  * The following well known text values are currently supported,
    3655             :  * Except for "EPSG:n", the others are without dependency on EPSG data files:
    3656             :  * <ul>
    3657             :  * <li> "EPSG:n": where n is the code a Geographic coordinate reference system.
    3658             :  * <li> "WGS84": same as "EPSG:4326" (axis order lat/long).
    3659             :  * <li> "WGS72": same as "EPSG:4322" (axis order lat/long).
    3660             :  * <li> "NAD83": same as "EPSG:4269" (axis order lat/long).
    3661             :  * <li> "NAD27": same as "EPSG:4267" (axis order lat/long).
    3662             :  * <li> "CRS84", "CRS:84": same as "WGS84" but with axis order long/lat.
    3663             :  * <li> "CRS72", "CRS:72": same as "WGS72" but with axis order long/lat.
    3664             :  * <li> "CRS27", "CRS:27": same as "NAD27" but with axis order long/lat.
    3665             :  * </ul>
    3666             :  *
    3667             :  * @param pszName name of well known geographic coordinate system.
    3668             :  * @return OGRERR_NONE on success, or OGRERR_FAILURE if the name isn't
    3669             :  * recognised, the target object is already initialized, or an EPSG value
    3670             :  * can't be successfully looked up.
    3671             :  */
    3672             : 
    3673        4579 : OGRErr OGRSpatialReference::SetWellKnownGeogCS(const char *pszName)
    3674             : 
    3675             : {
    3676        9158 :     TAKE_OPTIONAL_LOCK();
    3677             : 
    3678             :     /* -------------------------------------------------------------------- */
    3679             :     /*      Check for EPSG authority numbers.                               */
    3680             :     /* -------------------------------------------------------------------- */
    3681        4579 :     if (STARTS_WITH_CI(pszName, "EPSG:") || STARTS_WITH_CI(pszName, "EPSGA:"))
    3682             :     {
    3683          84 :         OGRSpatialReference oSRS2;
    3684          42 :         const OGRErr eErr = oSRS2.importFromEPSG(atoi(pszName + 5));
    3685          42 :         if (eErr != OGRERR_NONE)
    3686           0 :             return eErr;
    3687             : 
    3688          42 :         if (!oSRS2.IsGeographic())
    3689           0 :             return OGRERR_FAILURE;
    3690             : 
    3691          42 :         return CopyGeogCSFrom(&oSRS2);
    3692             :     }
    3693             : 
    3694             :     /* -------------------------------------------------------------------- */
    3695             :     /*      Check for simple names.                                         */
    3696             :     /* -------------------------------------------------------------------- */
    3697        4537 :     const char *pszWKT = nullptr;
    3698             : 
    3699        4537 :     if (EQUAL(pszName, "WGS84"))
    3700             :     {
    3701        2669 :         pszWKT = SRS_WKT_WGS84_LAT_LONG;
    3702             :     }
    3703        1868 :     else if (EQUAL(pszName, "CRS84") || EQUAL(pszName, "CRS:84"))
    3704             :     {
    3705        1072 :         pszWKT =
    3706             :             "GEOGCRS[\"WGS 84 (CRS84)\",DATUM[\"World Geodetic System 1984\","
    3707             :             "ELLIPSOID[\"WGS "
    3708             :             "84\",6378137,298.257223563,LENGTHUNIT[\"metre\",1]]],"
    3709             :             "PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433]],"
    3710             :             "CS[ellipsoidal,2],AXIS[\"geodetic longitude (Lon)\",east,ORDER[1],"
    3711             :             "ANGLEUNIT[\"degree\",0.0174532925199433]],"
    3712             :             "AXIS[\"geodetic latitude (Lat)\",north,ORDER[2],"
    3713             :             "ANGLEUNIT[\"degree\",0.0174532925199433]],"
    3714             :             "USAGE[SCOPE[\"unknown\"],AREA[\"World\"],BBOX[-90,-180,90,180]],"
    3715             :             "ID[\"OGC\",\"CRS84\"]]";
    3716             :     }
    3717         796 :     else if (EQUAL(pszName, "WGS72"))
    3718          19 :         pszWKT =
    3719             :             "GEOGCS[\"WGS 72\",DATUM[\"WGS_1972\","
    3720             :             "SPHEROID[\"WGS 72\",6378135,298.26,AUTHORITY[\"EPSG\",\"7043\"]],"
    3721             :             "AUTHORITY[\"EPSG\",\"6322\"]],"
    3722             :             "PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],"
    3723             :             "UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],"
    3724             :             "AXIS[\"Latitude\",NORTH],AXIS[\"Longitude\",EAST],"
    3725             :             "AUTHORITY[\"EPSG\",\"4322\"]]";
    3726             : 
    3727         777 :     else if (EQUAL(pszName, "NAD27"))
    3728         136 :         pszWKT =
    3729             :             "GEOGCS[\"NAD27\",DATUM[\"North_American_Datum_1927\","
    3730             :             "SPHEROID[\"Clarke 1866\",6378206.4,294.9786982138982,"
    3731             :             "AUTHORITY[\"EPSG\",\"7008\"]],AUTHORITY[\"EPSG\",\"6267\"]],"
    3732             :             "PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],"
    3733             :             "UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],"
    3734             :             "AXIS[\"Latitude\",NORTH],AXIS[\"Longitude\",EAST],"
    3735             :             "AUTHORITY[\"EPSG\",\"4267\"]]";
    3736             : 
    3737         641 :     else if (EQUAL(pszName, "CRS27") || EQUAL(pszName, "CRS:27"))
    3738           0 :         pszWKT =
    3739             :             "GEOGCS[\"NAD27\",DATUM[\"North_American_Datum_1927\","
    3740             :             "SPHEROID[\"Clarke 1866\",6378206.4,294.9786982138982,"
    3741             :             "AUTHORITY[\"EPSG\",\"7008\"]],AUTHORITY[\"EPSG\",\"6267\"]],"
    3742             :             "PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],"
    3743             :             "UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],"
    3744             :             "AXIS[\"Longitude\",EAST],AXIS[\"Latitude\",NORTH]]";
    3745             : 
    3746         641 :     else if (EQUAL(pszName, "NAD83"))
    3747         637 :         pszWKT =
    3748             :             "GEOGCS[\"NAD83\",DATUM[\"North_American_Datum_1983\","
    3749             :             "SPHEROID[\"GRS 1980\",6378137,298.257222101,"
    3750             :             "AUTHORITY[\"EPSG\",\"7019\"]],"
    3751             :             "AUTHORITY[\"EPSG\",\"6269\"]],"
    3752             :             "PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],"
    3753             :             "UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],"
    3754             :             "AXIS[\"Latitude\",NORTH],AXIS[\"Longitude\",EAST],AUTHORITY["
    3755             :             "\"EPSG\",\"4269\"]]";
    3756             : 
    3757           4 :     else if (EQUAL(pszName, "CRS83") || EQUAL(pszName, "CRS:83"))
    3758           0 :         pszWKT =
    3759             :             "GEOGCS[\"NAD83\",DATUM[\"North_American_Datum_1983\","
    3760             :             "SPHEROID[\"GRS 1980\",6378137,298.257222101,"
    3761             :             "AUTHORITY[\"EPSG\",\"7019\"]],"
    3762             :             "AUTHORITY[\"EPSG\",\"6269\"]],"
    3763             :             "PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],"
    3764             :             "UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],"
    3765             :             "AXIS[\"Longitude\",EAST],AXIS[\"Latitude\",NORTH]]";
    3766             : 
    3767             :     else
    3768           4 :         return OGRERR_FAILURE;
    3769             : 
    3770             :     /* -------------------------------------------------------------------- */
    3771             :     /*      Import the WKT                                                  */
    3772             :     /* -------------------------------------------------------------------- */
    3773        9066 :     OGRSpatialReference oSRS2;
    3774        4533 :     const OGRErr eErr = oSRS2.importFromWkt(pszWKT);
    3775        4533 :     if (eErr != OGRERR_NONE)
    3776           0 :         return eErr;
    3777             : 
    3778             :     /* -------------------------------------------------------------------- */
    3779             :     /*      Copy over.                                                      */
    3780             :     /* -------------------------------------------------------------------- */
    3781        4533 :     return CopyGeogCSFrom(&oSRS2);
    3782             : }
    3783             : 
    3784             : /************************************************************************/
    3785             : /*                       OSRSetWellKnownGeogCS()                        */
    3786             : /************************************************************************/
    3787             : 
    3788             : /**
    3789             :  * \brief Set a GeogCS based on well known name.
    3790             :  *
    3791             :  * This function is the same as OGRSpatialReference::SetWellKnownGeogCS()
    3792             :  */
    3793         155 : OGRErr OSRSetWellKnownGeogCS(OGRSpatialReferenceH hSRS, const char *pszName)
    3794             : 
    3795             : {
    3796         155 :     VALIDATE_POINTER1(hSRS, "OSRSetWellKnownGeogCS", OGRERR_FAILURE);
    3797             : 
    3798         155 :     return ToPointer(hSRS)->SetWellKnownGeogCS(pszName);
    3799             : }
    3800             : 
    3801             : /************************************************************************/
    3802             : /*                           CopyGeogCSFrom()                           */
    3803             : /************************************************************************/
    3804             : 
    3805             : /**
    3806             :  * \brief Copy GEOGCS from another OGRSpatialReference.
    3807             :  *
    3808             :  * The GEOGCS information is copied into this OGRSpatialReference from another.
    3809             :  * If this object has a PROJCS root already, the GEOGCS is installed within
    3810             :  * it, otherwise it is installed as the root.
    3811             :  *
    3812             :  * @param poSrcSRS the spatial reference to copy the GEOGCS information from.
    3813             :  *
    3814             :  * @return OGRERR_NONE on success or an error code.
    3815             :  */
    3816             : 
    3817        5187 : OGRErr OGRSpatialReference::CopyGeogCSFrom(const OGRSpatialReference *poSrcSRS)
    3818             : 
    3819             : {
    3820       10374 :     TAKE_OPTIONAL_LOCK();
    3821             : 
    3822        5187 :     d->bNormInfoSet = FALSE;
    3823        5187 :     d->m_osAngularUnits.clear();
    3824        5187 :     d->m_dfAngularUnitToRadian = 0.0;
    3825        5187 :     d->m_osPrimeMeridianName.clear();
    3826        5187 :     d->dfFromGreenwich = 0.0;
    3827             : 
    3828        5187 :     d->refreshProjObj();
    3829        5187 :     poSrcSRS->d->refreshProjObj();
    3830        5187 :     if (!poSrcSRS->d->m_pj_crs)
    3831             :     {
    3832           1 :         return OGRERR_FAILURE;
    3833             :     }
    3834             :     auto geodCRS =
    3835        5186 :         proj_crs_get_geodetic_crs(d->getPROJContext(), poSrcSRS->d->m_pj_crs);
    3836        5186 :     if (!geodCRS)
    3837             :     {
    3838           0 :         return OGRERR_FAILURE;
    3839             :     }
    3840             : 
    3841             :     /* -------------------------------------------------------------------- */
    3842             :     /*      Handle geocentric coordinate systems specially.  We just        */
    3843             :     /*      want to copy the DATUM.                                         */
    3844             :     /* -------------------------------------------------------------------- */
    3845        5186 :     if (d->m_pjType == PJ_TYPE_GEOCENTRIC_CRS)
    3846             :     {
    3847           3 :         auto datum = proj_crs_get_datum(d->getPROJContext(), geodCRS);
    3848             : #if PROJ_VERSION_MAJOR > 7 ||                                                  \
    3849             :     (PROJ_VERSION_MAJOR == 7 && PROJ_VERSION_MINOR >= 2)
    3850             :         if (datum == nullptr)
    3851             :         {
    3852             :             datum = proj_crs_get_datum_ensemble(d->getPROJContext(), geodCRS);
    3853             :         }
    3854             : #endif
    3855           3 :         if (datum == nullptr)
    3856             :         {
    3857           0 :             proj_destroy(geodCRS);
    3858           0 :             return OGRERR_FAILURE;
    3859             :         }
    3860             : 
    3861           3 :         const char *pszUnitName = nullptr;
    3862           3 :         double unitConvFactor = GetLinearUnits(&pszUnitName);
    3863             : 
    3864           3 :         auto pj_crs = proj_create_geocentric_crs_from_datum(
    3865           3 :             d->getPROJContext(), proj_get_name(d->m_pj_crs), datum, pszUnitName,
    3866             :             unitConvFactor);
    3867           3 :         proj_destroy(datum);
    3868             : 
    3869           3 :         d->setPjCRS(pj_crs);
    3870             :     }
    3871             : 
    3872        5183 :     else if (d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    3873             :     {
    3874         320 :         auto pj_crs = proj_crs_alter_geodetic_crs(d->getPROJContext(),
    3875         320 :                                                   d->m_pj_crs, geodCRS);
    3876         320 :         d->setPjCRS(pj_crs);
    3877             :     }
    3878             : 
    3879             :     else
    3880             :     {
    3881        4863 :         d->setPjCRS(proj_clone(d->getPROJContext(), geodCRS));
    3882             :     }
    3883             : 
    3884             :     // Apply TOWGS84 of source CRS
    3885        5186 :     if (poSrcSRS->d->m_pjType == PJ_TYPE_BOUND_CRS)
    3886             :     {
    3887             :         auto target =
    3888           1 :             proj_get_target_crs(d->getPROJContext(), poSrcSRS->d->m_pj_crs);
    3889           1 :         auto co = proj_crs_get_coordoperation(d->getPROJContext(),
    3890           1 :                                               poSrcSRS->d->m_pj_crs);
    3891           1 :         d->setPjCRS(proj_crs_create_bound_crs(d->getPROJContext(), d->m_pj_crs,
    3892             :                                               target, co));
    3893           1 :         proj_destroy(target);
    3894           1 :         proj_destroy(co);
    3895             :     }
    3896             : 
    3897        5186 :     proj_destroy(geodCRS);
    3898             : 
    3899        5186 :     return OGRERR_NONE;
    3900             : }
    3901             : 
    3902             : /************************************************************************/
    3903             : /*                         OSRCopyGeogCSFrom()                          */
    3904             : /************************************************************************/
    3905             : 
    3906             : /**
    3907             :  * \brief Copy GEOGCS from another OGRSpatialReference.
    3908             :  *
    3909             :  * This function is the same as OGRSpatialReference::CopyGeogCSFrom()
    3910             :  */
    3911           1 : OGRErr OSRCopyGeogCSFrom(OGRSpatialReferenceH hSRS,
    3912             :                          const OGRSpatialReferenceH hSrcSRS)
    3913             : 
    3914             : {
    3915           1 :     VALIDATE_POINTER1(hSRS, "OSRCopyGeogCSFrom", OGRERR_FAILURE);
    3916           1 :     VALIDATE_POINTER1(hSrcSRS, "OSRCopyGeogCSFrom", OGRERR_FAILURE);
    3917             : 
    3918           1 :     return ToPointer(hSRS)->CopyGeogCSFrom(ToPointer(hSrcSRS));
    3919             : }
    3920             : 
    3921             : /************************************************************************/
    3922             : /*                SET_FROM_USER_INPUT_LIMITATIONS_get()                 */
    3923             : /************************************************************************/
    3924             : 
    3925             : /** Limitations for OGRSpatialReference::SetFromUserInput().
    3926             :  *
    3927             :  * Currently ALLOW_NETWORK_ACCESS=NO and ALLOW_FILE_ACCESS=NO.
    3928             :  */
    3929             : const char *const OGRSpatialReference::SET_FROM_USER_INPUT_LIMITATIONS[] = {
    3930             :     "ALLOW_NETWORK_ACCESS=NO", "ALLOW_FILE_ACCESS=NO", nullptr};
    3931             : 
    3932             : /**
    3933             :  * \brief Return OGRSpatialReference::SET_FROM_USER_INPUT_LIMITATIONS
    3934             :  */
    3935        2755 : CSLConstList OGRSpatialReference::SET_FROM_USER_INPUT_LIMITATIONS_get()
    3936             : {
    3937        2755 :     return SET_FROM_USER_INPUT_LIMITATIONS;
    3938             : }
    3939             : 
    3940             : /************************************************************************/
    3941             : /*                   RemoveIDFromMemberOfEnsembles()                    */
    3942             : /************************************************************************/
    3943             : 
    3944             : // cppcheck-suppress constParameterReference
    3945         243 : static void RemoveIDFromMemberOfEnsembles(CPLJSONObject &obj)
    3946             : {
    3947             :     // Remove "id" from members of datum ensembles for compatibility with
    3948             :     // older PROJ versions
    3949             :     // Cf https://github.com/opengeospatial/geoparquet/discussions/110
    3950             :     // and https://github.com/OSGeo/PROJ/pull/3221
    3951         243 :     if (obj.GetType() == CPLJSONObject::Type::Object)
    3952             :     {
    3953         300 :         for (auto &subObj : obj.GetChildren())
    3954             :         {
    3955         235 :             RemoveIDFromMemberOfEnsembles(subObj);
    3956             :         }
    3957             :     }
    3958         198 :     else if (obj.GetType() == CPLJSONObject::Type::Array &&
    3959         198 :              obj.GetName() == "members")
    3960             :     {
    3961          60 :         for (auto &subObj : obj.ToArray())
    3962             :         {
    3963          52 :             if (subObj.GetType() == CPLJSONObject::Type::Object)
    3964             :             {
    3965          51 :                 subObj.Delete("id");
    3966             :             }
    3967             :         }
    3968             :     }
    3969         243 : }
    3970             : 
    3971             : /************************************************************************/
    3972             : /*                          SetFromUserInput()                          */
    3973             : /************************************************************************/
    3974             : 
    3975             : /**
    3976             :  * \brief Set spatial reference from various text formats.
    3977             :  *
    3978             :  * This method will examine the provided input, and try to deduce the
    3979             :  * format, and then use it to initialize the spatial reference system.  It
    3980             :  * may take the following forms:
    3981             :  *
    3982             :  * <ol>
    3983             :  * <li> Well Known Text definition - passed on to importFromWkt().
    3984             :  * <li> "EPSG:n" - number passed on to importFromEPSG().
    3985             :  * <li> "EPSGA:n" - number passed on to importFromEPSGA().
    3986             :  * <li> "AUTO:proj_id,unit_id,lon0,lat0" - WMS auto projections.
    3987             :  * <li> "urn:ogc:def:crs:EPSG::n" - ogc urns
    3988             :  * <li> PROJ.4 definitions - passed on to importFromProj4().
    3989             :  * <li> filename - file read for WKT, XML or PROJ.4 definition.
    3990             :  * <li> well known name accepted by SetWellKnownGeogCS(), such as NAD27, NAD83,
    3991             :  * WGS84 or WGS72.
    3992             :  * <li> "IGNF:xxxx", "ESRI:xxxx", etc. from definitions from the PROJ database;
    3993             :  * <li> PROJJSON (PROJ &gt;= 6.2)
    3994             :  * </ol>
    3995             :  *
    3996             :  * It is expected that this method will be extended in the future to support
    3997             :  * XML and perhaps a simplified "minilanguage" for indicating common UTM and
    3998             :  * State Plane definitions.
    3999             :  *
    4000             :  * This method is intended to be flexible, but by its nature it is
    4001             :  * imprecise as it must guess information about the format intended.  When
    4002             :  * possible applications should call the specific method appropriate if the
    4003             :  * input is known to be in a particular format.
    4004             :  *
    4005             :  * This method does the same thing as the OSRSetFromUserInput() function.
    4006             :  *
    4007             :  * @param pszDefinition text definition to try to deduce SRS from.
    4008             :  *
    4009             :  * @return OGRERR_NONE on success, or an error code if the name isn't
    4010             :  * recognised, the definition is corrupt, or an EPSG value can't be
    4011             :  * successfully looked up.
    4012             :  */
    4013             : 
    4014       22468 : OGRErr OGRSpatialReference::SetFromUserInput(const char *pszDefinition)
    4015             : {
    4016       22468 :     return SetFromUserInput(pszDefinition, nullptr);
    4017             : }
    4018             : 
    4019             : /**
    4020             :  * \brief Set spatial reference from various text formats.
    4021             :  *
    4022             :  * This method will examine the provided input, and try to deduce the
    4023             :  * format, and then use it to initialize the spatial reference system.  It
    4024             :  * may take the following forms:
    4025             :  *
    4026             :  * <ol>
    4027             :  * <li> Well Known Text definition - passed on to importFromWkt().
    4028             :  * <li> "EPSG:n" - number passed on to importFromEPSG().
    4029             :  * <li> "EPSGA:n" - number passed on to importFromEPSGA().
    4030             :  * <li> "AUTO:proj_id,unit_id,lon0,lat0" - WMS auto projections.
    4031             :  * <li> "urn:ogc:def:crs:EPSG::n" - ogc urns
    4032             :  * <li> PROJ.4 definitions - passed on to importFromProj4().
    4033             :  * <li> filename - file read for WKT, XML or PROJ.4 definition.
    4034             :  * <li> well known name accepted by SetWellKnownGeogCS(), such as NAD27, NAD83,
    4035             :  * WGS84 or WGS72.
    4036             :  * <li> "IGNF:xxxx", "ESRI:xxxx", etc. from definitions from the PROJ database;
    4037             :  * <li> PROJJSON (PROJ &gt;= 6.2)
    4038             :  * </ol>
    4039             :  *
    4040             :  * It is expected that this method will be extended in the future to support
    4041             :  * XML and perhaps a simplified "minilanguage" for indicating common UTM and
    4042             :  * State Plane definitions.
    4043             :  *
    4044             :  * This method is intended to be flexible, but by its nature it is
    4045             :  * imprecise as it must guess information about the format intended.  When
    4046             :  * possible applications should call the specific method appropriate if the
    4047             :  * input is known to be in a particular format.
    4048             :  *
    4049             :  * This method does the same thing as the OSRSetFromUserInput() and
    4050             :  * OSRSetFromUserInputEx() functions.
    4051             :  *
    4052             :  * @param pszDefinition text definition to try to deduce SRS from.
    4053             :  *
    4054             :  * @param papszOptions NULL terminated list of options, or NULL.
    4055             :  * <ol>
    4056             :  * <li> ALLOW_NETWORK_ACCESS=YES/NO.
    4057             :  *      Whether http:// or https:// access is allowed. Defaults to YES.
    4058             :  * <li> ALLOW_FILE_ACCESS=YES/NO.
    4059             :  *      Whether reading a file using the Virtual File System layer is allowed
    4060             :  *      (can also involve network access). Defaults to YES.
    4061             :  * </ol>
    4062             :  *
    4063             :  * @return OGRERR_NONE on success, or an error code if the name isn't
    4064             :  * recognised, the definition is corrupt, or an EPSG value can't be
    4065             :  * successfully looked up.
    4066             :  */
    4067             : 
    4068       29943 : OGRErr OGRSpatialReference::SetFromUserInput(const char *pszDefinition,
    4069             :                                              CSLConstList papszOptions)
    4070             : {
    4071       59886 :     TAKE_OPTIONAL_LOCK();
    4072             : 
    4073             :     // Skip leading white space
    4074       29945 :     while (isspace(static_cast<unsigned char>(*pszDefinition)))
    4075           2 :         pszDefinition++;
    4076             : 
    4077       29943 :     if (STARTS_WITH_CI(pszDefinition, "ESRI::"))
    4078             :     {
    4079           1 :         pszDefinition += 6;
    4080             :     }
    4081             : 
    4082             :     /* -------------------------------------------------------------------- */
    4083             :     /*      Is it a recognised syntax?                                      */
    4084             :     /* -------------------------------------------------------------------- */
    4085       29943 :     const char *const wktKeywords[] = {
    4086             :         // WKT1
    4087             :         "GEOGCS", "GEOCCS", "PROJCS", "VERT_CS", "COMPD_CS", "LOCAL_CS",
    4088             :         // WKT2"
    4089             :         "GEODCRS", "GEOGCRS", "GEODETICCRS", "GEOGRAPHICCRS", "PROJCRS",
    4090             :         "PROJECTEDCRS", "VERTCRS", "VERTICALCRS", "COMPOUNDCRS", "ENGCRS",
    4091             :         "ENGINEERINGCRS", "BOUNDCRS", "DERIVEDPROJCRS", "COORDINATEMETADATA"};
    4092      459337 :     for (const char *keyword : wktKeywords)
    4093             :     {
    4094      438545 :         if (STARTS_WITH_CI(pszDefinition, keyword))
    4095             :         {
    4096        9151 :             return importFromWkt(pszDefinition);
    4097             :         }
    4098             :     }
    4099             : 
    4100       20792 :     const bool bStartsWithEPSG = STARTS_WITH_CI(pszDefinition, "EPSG:");
    4101       20792 :     if (bStartsWithEPSG || STARTS_WITH_CI(pszDefinition, "EPSGA:"))
    4102             :     {
    4103       11756 :         OGRErr eStatus = OGRERR_NONE;
    4104             : 
    4105       11756 :         if (strchr(pszDefinition, '+') || strchr(pszDefinition, '@'))
    4106             :         {
    4107             :             // Use proj_create() as it allows things like EPSG:3157+4617
    4108             :             // that are not normally supported by the below code that
    4109             :             // builds manually a compound CRS
    4110          62 :             PJ *pj = proj_create(d->getPROJContext(), pszDefinition);
    4111          62 :             if (!pj)
    4112             :             {
    4113           1 :                 return OGRERR_FAILURE;
    4114             :             }
    4115          61 :             Clear();
    4116          61 :             d->setPjCRS(pj);
    4117          61 :             return OGRERR_NONE;
    4118             :         }
    4119             :         else
    4120             :         {
    4121             :             eStatus =
    4122       11694 :                 importFromEPSG(atoi(pszDefinition + (bStartsWithEPSG ? 5 : 6)));
    4123             :         }
    4124             : 
    4125       11694 :         return eStatus;
    4126             :     }
    4127             : 
    4128        9036 :     if (STARTS_WITH_CI(pszDefinition, "urn:ogc:def:crs:") ||
    4129        8311 :         STARTS_WITH_CI(pszDefinition, "urn:ogc:def:crs,crs:") ||
    4130        8310 :         STARTS_WITH_CI(pszDefinition, "urn:x-ogc:def:crs:") ||
    4131        8252 :         STARTS_WITH_CI(pszDefinition, "urn:opengis:crs:") ||
    4132        8252 :         STARTS_WITH_CI(pszDefinition, "urn:opengis:def:crs:") ||
    4133        8252 :         STARTS_WITH_CI(pszDefinition, "urn:ogc:def:coordinateMetadata:"))
    4134         784 :         return importFromURN(pszDefinition);
    4135             : 
    4136        8252 :     if (STARTS_WITH_CI(pszDefinition, "http://opengis.net/def/crs") ||
    4137        8250 :         STARTS_WITH_CI(pszDefinition, "https://opengis.net/def/crs") ||
    4138        8249 :         STARTS_WITH_CI(pszDefinition, "http://www.opengis.net/def/crs") ||
    4139        1649 :         STARTS_WITH_CI(pszDefinition, "https://www.opengis.net/def/crs") ||
    4140        1648 :         STARTS_WITH_CI(pszDefinition, "www.opengis.net/def/crs"))
    4141        6604 :         return importFromCRSURL(pszDefinition);
    4142             : 
    4143        1648 :     if (STARTS_WITH_CI(pszDefinition, "AUTO:"))
    4144           1 :         return importFromWMSAUTO(pszDefinition);
    4145             : 
    4146             :     // WMS/WCS OGC codes like OGC:CRS84.
    4147        1647 :     if (EQUAL(pszDefinition, "OGC:CRS84"))
    4148          79 :         return SetWellKnownGeogCS(pszDefinition + 4);
    4149             : 
    4150        1568 :     if (STARTS_WITH_CI(pszDefinition, "CRS:"))
    4151           1 :         return SetWellKnownGeogCS(pszDefinition);
    4152             : 
    4153        1567 :     if (STARTS_WITH_CI(pszDefinition, "DICT:") && strstr(pszDefinition, ","))
    4154             :     {
    4155           0 :         char *pszFile = CPLStrdup(pszDefinition + 5);
    4156           0 :         char *pszCode = strstr(pszFile, ",") + 1;
    4157             : 
    4158           0 :         pszCode[-1] = '\0';
    4159             : 
    4160           0 :         OGRErr err = importFromDict(pszFile, pszCode);
    4161           0 :         CPLFree(pszFile);
    4162             : 
    4163           0 :         return err;
    4164             :     }
    4165             : 
    4166        1567 :     if (EQUAL(pszDefinition, "NAD27") || EQUAL(pszDefinition, "NAD83") ||
    4167        1562 :         EQUAL(pszDefinition, "WGS84") || EQUAL(pszDefinition, "WGS72"))
    4168             :     {
    4169         521 :         Clear();
    4170         521 :         return SetWellKnownGeogCS(pszDefinition);
    4171             :     }
    4172             : 
    4173             :     // PROJJSON
    4174        1046 :     if (pszDefinition[0] == '{' && strstr(pszDefinition, "\"type\"") &&
    4175         179 :         (strstr(pszDefinition, "GeodeticCRS") ||
    4176         179 :          strstr(pszDefinition, "GeographicCRS") ||
    4177         129 :          strstr(pszDefinition, "ProjectedCRS") ||
    4178           0 :          strstr(pszDefinition, "VerticalCRS") ||
    4179           0 :          strstr(pszDefinition, "BoundCRS") ||
    4180           0 :          strstr(pszDefinition, "CompoundCRS") ||
    4181           0 :          strstr(pszDefinition, "DerivedGeodeticCRS") ||
    4182           0 :          strstr(pszDefinition, "DerivedGeographicCRS") ||
    4183           0 :          strstr(pszDefinition, "DerivedProjectedCRS") ||
    4184           0 :          strstr(pszDefinition, "DerivedVerticalCRS") ||
    4185           0 :          strstr(pszDefinition, "EngineeringCRS") ||
    4186           0 :          strstr(pszDefinition, "DerivedEngineeringCRS") ||
    4187           0 :          strstr(pszDefinition, "ParametricCRS") ||
    4188           0 :          strstr(pszDefinition, "DerivedParametricCRS") ||
    4189           0 :          strstr(pszDefinition, "TemporalCRS") ||
    4190           0 :          strstr(pszDefinition, "DerivedTemporalCRS")))
    4191             :     {
    4192             :         PJ *pj;
    4193         179 :         if (strstr(pszDefinition, "datum_ensemble") != nullptr)
    4194             :         {
    4195             :             // PROJ < 9.0.1 doesn't like a datum_ensemble whose member have
    4196             :             // a unknown id.
    4197           8 :             CPLJSONDocument oCRSDoc;
    4198           8 :             if (!oCRSDoc.LoadMemory(pszDefinition))
    4199           0 :                 return OGRERR_CORRUPT_DATA;
    4200           8 :             CPLJSONObject oCRSRoot = oCRSDoc.GetRoot();
    4201           8 :             RemoveIDFromMemberOfEnsembles(oCRSRoot);
    4202           8 :             pj = proj_create(d->getPROJContext(), oCRSRoot.ToString().c_str());
    4203             :         }
    4204             :         else
    4205             :         {
    4206         171 :             pj = proj_create(d->getPROJContext(), pszDefinition);
    4207             :         }
    4208         179 :         if (!pj)
    4209             :         {
    4210           2 :             return OGRERR_FAILURE;
    4211             :         }
    4212         177 :         Clear();
    4213         177 :         d->setPjCRS(pj);
    4214         177 :         return OGRERR_NONE;
    4215             :     }
    4216             : 
    4217         867 :     if (strstr(pszDefinition, "+proj") != nullptr ||
    4218         407 :         strstr(pszDefinition, "+init") != nullptr)
    4219         460 :         return importFromProj4(pszDefinition);
    4220             : 
    4221         407 :     if (STARTS_WITH_CI(pszDefinition, "http://") ||
    4222         382 :         STARTS_WITH_CI(pszDefinition, "https://"))
    4223             :     {
    4224          26 :         if (CPLTestBool(CSLFetchNameValueDef(papszOptions,
    4225             :                                              "ALLOW_NETWORK_ACCESS", "YES")))
    4226           0 :             return importFromUrl(pszDefinition);
    4227             : 
    4228          26 :         CPLError(CE_Failure, CPLE_AppDefined,
    4229             :                  "Cannot import %s due to ALLOW_NETWORK_ACCESS=NO",
    4230             :                  pszDefinition);
    4231          26 :         return OGRERR_FAILURE;
    4232             :     }
    4233             : 
    4234         381 :     if (EQUAL(pszDefinition, "osgb:BNG"))
    4235             :     {
    4236           8 :         return importFromEPSG(27700);
    4237             :     }
    4238             : 
    4239             :     // Used by German CityGML files
    4240         373 :     if (EQUAL(pszDefinition, "urn:adv:crs:ETRS89_UTM32*DE_DHHN92_NH"))
    4241             :     {
    4242             :         // "ETRS89 / UTM Zone 32N + DHHN92 height"
    4243           0 :         return SetFromUserInput("EPSG:25832+5783");
    4244             :     }
    4245         373 :     else if (EQUAL(pszDefinition, "urn:adv:crs:ETRS89_UTM32*DE_DHHN2016_NH"))
    4246             :     {
    4247             :         // "ETRS89 / UTM Zone 32N + DHHN2016 height"
    4248           3 :         return SetFromUserInput("EPSG:25832+7837");
    4249             :     }
    4250             : 
    4251             :     // Used by  Japan's Fundamental Geospatial Data (FGD) GML
    4252         370 :     if (EQUAL(pszDefinition, "fguuid:jgd2001.bl"))
    4253           0 :         return importFromEPSG(4612);  // JGD2000 (slight difference in years)
    4254         370 :     else if (EQUAL(pszDefinition, "fguuid:jgd2011.bl"))
    4255           8 :         return importFromEPSG(6668);  // JGD2011
    4256         362 :     else if (EQUAL(pszDefinition, "fguuid:jgd2024.bl"))
    4257             :     {
    4258             :         // FIXME when EPSG attributes a CRS code
    4259           3 :         return importFromWkt(
    4260             :             "GEOGCRS[\"JGD2024\",\n"
    4261             :             "    DATUM[\"Japanese Geodetic Datum 2024\",\n"
    4262             :             "        ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n"
    4263             :             "            LENGTHUNIT[\"metre\",1]]],\n"
    4264             :             "    PRIMEM[\"Greenwich\",0,\n"
    4265             :             "        ANGLEUNIT[\"degree\",0.0174532925199433]],\n"
    4266             :             "    CS[ellipsoidal,2],\n"
    4267             :             "        AXIS[\"geodetic latitude (Lat)\",north,\n"
    4268             :             "            ORDER[1],\n"
    4269             :             "            ANGLEUNIT[\"degree\",0.0174532925199433]],\n"
    4270             :             "        AXIS[\"geodetic longitude (Lon)\",east,\n"
    4271             :             "            ORDER[2],\n"
    4272             :             "            ANGLEUNIT[\"degree\",0.0174532925199433]],\n"
    4273             :             "    USAGE[\n"
    4274             :             "        SCOPE[\"Horizontal component of 3D system.\"],\n"
    4275             :             "        AREA[\"Japan - onshore and offshore.\"],\n"
    4276           3 :             "        BBOX[17.09,122.38,46.05,157.65]]]");
    4277             :     }
    4278             : 
    4279             :     // Deal with IGNF:xxx, ESRI:xxx, etc from the PROJ database
    4280         359 :     const char *pszDot = strrchr(pszDefinition, ':');
    4281         359 :     if (pszDot)
    4282             :     {
    4283         125 :         CPLString osPrefix(pszDefinition, pszDot - pszDefinition);
    4284             :         auto authorities =
    4285         125 :             proj_get_authorities_from_database(d->getPROJContext());
    4286         125 :         if (authorities)
    4287             :         {
    4288         125 :             std::set<std::string> aosCandidateAuthorities;
    4289         290 :             for (auto iter = authorities; *iter; ++iter)
    4290             :             {
    4291         288 :                 if (*iter == osPrefix)
    4292             :                 {
    4293         123 :                     aosCandidateAuthorities.clear();
    4294         123 :                     aosCandidateAuthorities.insert(*iter);
    4295         123 :                     break;
    4296             :                 }
    4297             :                 // Deal with "IAU_2015" as authority in the list and input
    4298             :                 // "IAU:code"
    4299         165 :                 else if (strncmp(*iter, osPrefix.c_str(), osPrefix.size()) ==
    4300         165 :                              0 &&
    4301           0 :                          (*iter)[osPrefix.size()] == '_')
    4302             :                 {
    4303           0 :                     aosCandidateAuthorities.insert(*iter);
    4304             :                 }
    4305             :                 // Deal with "IAU_2015" as authority in the list and input
    4306             :                 // "IAU:2015:code"
    4307         330 :                 else if (osPrefix.find(':') != std::string::npos &&
    4308         165 :                          osPrefix.size() == strlen(*iter) &&
    4309         165 :                          CPLString(osPrefix).replaceAll(':', '_') == *iter)
    4310             :                 {
    4311           0 :                     aosCandidateAuthorities.clear();
    4312           0 :                     aosCandidateAuthorities.insert(*iter);
    4313           0 :                     break;
    4314             :                 }
    4315             :             }
    4316             : 
    4317         125 :             proj_string_list_destroy(authorities);
    4318             : 
    4319         125 :             if (!aosCandidateAuthorities.empty())
    4320             :             {
    4321         123 :                 auto obj = proj_create_from_database(
    4322             :                     d->getPROJContext(),
    4323         123 :                     aosCandidateAuthorities.rbegin()->c_str(), pszDot + 1,
    4324             :                     PJ_CATEGORY_CRS, false, nullptr);
    4325         123 :                 if (!obj)
    4326             :                 {
    4327          16 :                     return OGRERR_FAILURE;
    4328             :                 }
    4329         107 :                 Clear();
    4330         107 :                 d->setPjCRS(obj);
    4331         107 :                 return OGRERR_NONE;
    4332             :             }
    4333             :         }
    4334             :     }
    4335             : 
    4336             :     /* -------------------------------------------------------------------- */
    4337             :     /*      Try to open it as a file.                                       */
    4338             :     /* -------------------------------------------------------------------- */
    4339         236 :     if (!CPLTestBool(
    4340             :             CSLFetchNameValueDef(papszOptions, "ALLOW_FILE_ACCESS", "YES")))
    4341             :     {
    4342             :         VSIStatBufL sStat;
    4343          40 :         if (STARTS_WITH(pszDefinition, "/vsi") ||
    4344          20 :             VSIStatExL(pszDefinition, &sStat, VSI_STAT_EXISTS_FLAG) == 0)
    4345             :         {
    4346           0 :             CPLError(CE_Failure, CPLE_AppDefined,
    4347             :                      "Cannot import %s due to ALLOW_FILE_ACCESS=NO",
    4348             :                      pszDefinition);
    4349           0 :             return OGRERR_FAILURE;
    4350             :         }
    4351             :         // We used to silently return an error without a CE_Failure message
    4352             :         // Cf https://github.com/Toblerity/Fiona/issues/1063
    4353          20 :         return OGRERR_CORRUPT_DATA;
    4354             :     }
    4355             : 
    4356         432 :     CPLConfigOptionSetter oSetter("CPL_ALLOW_VSISTDIN", "NO", true);
    4357         216 :     VSILFILE *const fp = VSIFOpenL(pszDefinition, "rt");
    4358         216 :     if (fp == nullptr)
    4359         213 :         return OGRERR_CORRUPT_DATA;
    4360             : 
    4361           3 :     const size_t nBufMax = 100000;
    4362           3 :     char *const pszBuffer = static_cast<char *>(CPLMalloc(nBufMax));
    4363           3 :     const size_t nBytes = VSIFReadL(pszBuffer, 1, nBufMax - 1, fp);
    4364           3 :     VSIFCloseL(fp);
    4365             : 
    4366           3 :     if (nBytes == nBufMax - 1)
    4367             :     {
    4368           0 :         CPLDebug("OGR",
    4369             :                  "OGRSpatialReference::SetFromUserInput(%s), opened file "
    4370             :                  "but it is to large for our generous buffer.  Is it really "
    4371             :                  "just a WKT definition?",
    4372             :                  pszDefinition);
    4373           0 :         CPLFree(pszBuffer);
    4374           0 :         return OGRERR_FAILURE;
    4375             :     }
    4376             : 
    4377           3 :     pszBuffer[nBytes] = '\0';
    4378             : 
    4379           3 :     char *pszBufPtr = pszBuffer;
    4380           3 :     while (pszBufPtr[0] == ' ' || pszBufPtr[0] == '\n')
    4381           0 :         pszBufPtr++;
    4382             : 
    4383           3 :     OGRErr err = OGRERR_NONE;
    4384           3 :     if (pszBufPtr[0] == '<')
    4385           0 :         err = importFromXML(pszBufPtr);
    4386           3 :     else if ((strstr(pszBuffer, "+proj") != nullptr ||
    4387           3 :               strstr(pszBuffer, "+init") != nullptr) &&
    4388           0 :              (strstr(pszBuffer, "EXTENSION") == nullptr &&
    4389           0 :               strstr(pszBuffer, "extension") == nullptr))
    4390           0 :         err = importFromProj4(pszBufPtr);
    4391             :     else
    4392             :     {
    4393           3 :         if (STARTS_WITH_CI(pszBufPtr, "ESRI::"))
    4394             :         {
    4395           0 :             pszBufPtr += 6;
    4396             :         }
    4397             : 
    4398             :         // coverity[tainted_data]
    4399           3 :         err = importFromWkt(pszBufPtr);
    4400             :     }
    4401             : 
    4402           3 :     CPLFree(pszBuffer);
    4403             : 
    4404           3 :     return err;
    4405             : }
    4406             : 
    4407             : /************************************************************************/
    4408             : /*                        OSRSetFromUserInput()                         */
    4409             : /************************************************************************/
    4410             : 
    4411             : /**
    4412             :  * \brief Set spatial reference from various text formats.
    4413             :  *
    4414             :  * This function is the same as OGRSpatialReference::SetFromUserInput()
    4415             :  *
    4416             :  * \see OSRSetFromUserInputEx() for a variant allowing to pass options.
    4417             :  */
    4418         365 : OGRErr CPL_STDCALL OSRSetFromUserInput(OGRSpatialReferenceH hSRS,
    4419             :                                        const char *pszDef)
    4420             : 
    4421             : {
    4422         365 :     VALIDATE_POINTER1(hSRS, "OSRSetFromUserInput", OGRERR_FAILURE);
    4423             : 
    4424         365 :     return ToPointer(hSRS)->SetFromUserInput(pszDef);
    4425             : }
    4426             : 
    4427             : /************************************************************************/
    4428             : /*                       OSRSetFromUserInputEx()                        */
    4429             : /************************************************************************/
    4430             : 
    4431             : /**
    4432             :  * \brief Set spatial reference from various text formats.
    4433             :  *
    4434             :  * This function is the same as OGRSpatialReference::SetFromUserInput().
    4435             :  *
    4436             :  * @since GDAL 3.9
    4437             :  */
    4438        1204 : OGRErr OSRSetFromUserInputEx(OGRSpatialReferenceH hSRS, const char *pszDef,
    4439             :                              CSLConstList papszOptions)
    4440             : 
    4441             : {
    4442        1204 :     VALIDATE_POINTER1(hSRS, "OSRSetFromUserInputEx", OGRERR_FAILURE);
    4443             : 
    4444        1204 :     return ToPointer(hSRS)->SetFromUserInput(pszDef, papszOptions);
    4445             : }
    4446             : 
    4447             : /************************************************************************/
    4448             : /*                           ImportFromUrl()                            */
    4449             : /************************************************************************/
    4450             : 
    4451             : /**
    4452             :  * \brief Set spatial reference from a URL.
    4453             :  *
    4454             :  * This method will download the spatial reference at a given URL and
    4455             :  * feed it into SetFromUserInput for you.
    4456             :  *
    4457             :  * This method does the same thing as the OSRImportFromUrl() function.
    4458             :  *
    4459             :  * @param pszUrl text definition to try to deduce SRS from.
    4460             :  *
    4461             :  * @return OGRERR_NONE on success, or an error code with the curl
    4462             :  * error message if it is unable to download data.
    4463             :  */
    4464             : 
    4465           5 : OGRErr OGRSpatialReference::importFromUrl(const char *pszUrl)
    4466             : 
    4467             : {
    4468          10 :     TAKE_OPTIONAL_LOCK();
    4469             : 
    4470           5 :     if (!STARTS_WITH_CI(pszUrl, "http://") &&
    4471           3 :         !STARTS_WITH_CI(pszUrl, "https://"))
    4472             :     {
    4473           2 :         CPLError(CE_Failure, CPLE_AppDefined,
    4474             :                  "The given string is not recognized as a URL"
    4475             :                  "starting with 'http://' -- %s",
    4476             :                  pszUrl);
    4477           2 :         return OGRERR_FAILURE;
    4478             :     }
    4479             : 
    4480             :     /* -------------------------------------------------------------------- */
    4481             :     /*      Fetch the result.                                               */
    4482             :     /* -------------------------------------------------------------------- */
    4483           3 :     CPLErrorReset();
    4484             : 
    4485           6 :     std::string osUrl(pszUrl);
    4486             :     // We have historically supported "http://spatialreference.org/ref/AUTHNAME/CODE/"
    4487             :     // as a valid URL since we used a "Accept: application/x-ogcwkt" header
    4488             :     // to query WKT. To allow a static server to be used, rather append a
    4489             :     // "ogcwkt/" suffix.
    4490           2 :     for (const char *pszPrefix : {"https://spatialreference.org/ref/",
    4491           5 :                                   "http://spatialreference.org/ref/"})
    4492             :     {
    4493           5 :         if (STARTS_WITH(pszUrl, pszPrefix))
    4494             :         {
    4495             :             const CPLStringList aosTokens(
    4496           6 :                 CSLTokenizeString2(pszUrl + strlen(pszPrefix), "/", 0));
    4497           3 :             if (aosTokens.size() == 2)
    4498             :             {
    4499           2 :                 osUrl = "https://spatialreference.org/ref/";
    4500           2 :                 osUrl += aosTokens[0];  // authority
    4501           2 :                 osUrl += '/';
    4502           2 :                 osUrl += aosTokens[1];  // code
    4503           2 :                 osUrl += "/ogcwkt/";
    4504             :             }
    4505           3 :             break;
    4506             :         }
    4507             :     }
    4508             : 
    4509           3 :     const char *pszTimeout = "TIMEOUT=10";
    4510           3 :     char *apszOptions[] = {const_cast<char *>(pszTimeout), nullptr};
    4511             : 
    4512           3 :     CPLHTTPResult *psResult = CPLHTTPFetch(osUrl.c_str(), apszOptions);
    4513             : 
    4514             :     /* -------------------------------------------------------------------- */
    4515             :     /*      Try to handle errors.                                           */
    4516             :     /* -------------------------------------------------------------------- */
    4517             : 
    4518           3 :     if (psResult == nullptr)
    4519           0 :         return OGRERR_FAILURE;
    4520           6 :     if (psResult->nDataLen == 0 || CPLGetLastErrorNo() != 0 ||
    4521           3 :         psResult->pabyData == nullptr)
    4522             :     {
    4523           0 :         if (CPLGetLastErrorNo() == 0)
    4524             :         {
    4525           0 :             CPLError(CE_Failure, CPLE_AppDefined,
    4526             :                      "No data was returned from the given URL");
    4527             :         }
    4528           0 :         CPLHTTPDestroyResult(psResult);
    4529           0 :         return OGRERR_FAILURE;
    4530             :     }
    4531             : 
    4532           3 :     if (psResult->nStatus != 0)
    4533             :     {
    4534           0 :         CPLError(CE_Failure, CPLE_AppDefined, "Curl reports error: %d: %s",
    4535             :                  psResult->nStatus, psResult->pszErrBuf);
    4536           0 :         CPLHTTPDestroyResult(psResult);
    4537           0 :         return OGRERR_FAILURE;
    4538             :     }
    4539             : 
    4540           3 :     const char *pszData = reinterpret_cast<const char *>(psResult->pabyData);
    4541           3 :     if (STARTS_WITH_CI(pszData, "http://") ||
    4542           3 :         STARTS_WITH_CI(pszData, "https://"))
    4543             :     {
    4544           0 :         CPLError(CE_Failure, CPLE_AppDefined,
    4545             :                  "The data that was downloaded also starts with 'http://' "
    4546             :                  "and cannot be passed into SetFromUserInput.  Is this "
    4547             :                  "really a spatial reference definition? ");
    4548           0 :         CPLHTTPDestroyResult(psResult);
    4549           0 :         return OGRERR_FAILURE;
    4550             :     }
    4551           3 :     if (OGRERR_NONE != SetFromUserInput(pszData))
    4552             :     {
    4553           0 :         CPLHTTPDestroyResult(psResult);
    4554           0 :         return OGRERR_FAILURE;
    4555             :     }
    4556             : 
    4557           3 :     CPLHTTPDestroyResult(psResult);
    4558           3 :     return OGRERR_NONE;
    4559             : }
    4560             : 
    4561             : /************************************************************************/
    4562             : /*                          OSRimportFromUrl()                          */
    4563             : /************************************************************************/
    4564             : 
    4565             : /**
    4566             :  * \brief Set spatial reference from a URL.
    4567             :  *
    4568             :  * This function is the same as OGRSpatialReference::importFromUrl()
    4569             :  */
    4570           3 : OGRErr OSRImportFromUrl(OGRSpatialReferenceH hSRS, const char *pszUrl)
    4571             : 
    4572             : {
    4573           3 :     VALIDATE_POINTER1(hSRS, "OSRImportFromUrl", OGRERR_FAILURE);
    4574             : 
    4575           3 :     return ToPointer(hSRS)->importFromUrl(pszUrl);
    4576             : }
    4577             : 
    4578             : /************************************************************************/
    4579             : /*                         importFromURNPart()                          */
    4580             : /************************************************************************/
    4581        6815 : OGRErr OGRSpatialReference::importFromURNPart(const char *pszAuthority,
    4582             :                                               const char *pszCode,
    4583             :                                               const char *pszURN)
    4584             : {
    4585             : #if PROJ_AT_LEAST_VERSION(8, 1, 0)
    4586             :     (void)this;
    4587             :     (void)pszAuthority;
    4588             :     (void)pszCode;
    4589             :     (void)pszURN;
    4590             :     return OGRERR_FAILURE;
    4591             : #else
    4592             :     /* -------------------------------------------------------------------- */
    4593             :     /*      Is this an EPSG code? Note that we import it with EPSG          */
    4594             :     /*      preferred axis ordering for geographic coordinate systems.      */
    4595             :     /* -------------------------------------------------------------------- */
    4596        6815 :     if (STARTS_WITH_CI(pszAuthority, "EPSG"))
    4597        5820 :         return importFromEPSGA(atoi(pszCode));
    4598             : 
    4599             :     /* -------------------------------------------------------------------- */
    4600             :     /*      Is this an IAU code?  Lets try for the IAU2000 dictionary.      */
    4601             :     /* -------------------------------------------------------------------- */
    4602         995 :     if (STARTS_WITH_CI(pszAuthority, "IAU"))
    4603           0 :         return importFromDict("IAU2000.wkt", pszCode);
    4604             : 
    4605             :     /* -------------------------------------------------------------------- */
    4606             :     /*      Is this an OGC code?                                            */
    4607             :     /* -------------------------------------------------------------------- */
    4608         995 :     if (!STARTS_WITH_CI(pszAuthority, "OGC"))
    4609             :     {
    4610           1 :         CPLError(CE_Failure, CPLE_AppDefined,
    4611             :                  "URN %s has unrecognized authority.", pszURN);
    4612           1 :         return OGRERR_FAILURE;
    4613             :     }
    4614             : 
    4615         994 :     if (STARTS_WITH_CI(pszCode, "CRS84"))
    4616         982 :         return SetWellKnownGeogCS(pszCode);
    4617          12 :     else if (STARTS_WITH_CI(pszCode, "CRS83"))
    4618           0 :         return SetWellKnownGeogCS(pszCode);
    4619          12 :     else if (STARTS_WITH_CI(pszCode, "CRS27"))
    4620           0 :         return SetWellKnownGeogCS(pszCode);
    4621          12 :     else if (STARTS_WITH_CI(pszCode, "84"))  // urn:ogc:def:crs:OGC:2:84
    4622          10 :         return SetWellKnownGeogCS("CRS84");
    4623             : 
    4624             :     /* -------------------------------------------------------------------- */
    4625             :     /*      Handle auto codes.  We need to convert from format              */
    4626             :     /*      AUTO42001:99:8888 to format AUTO:42001,99,8888.                 */
    4627             :     /* -------------------------------------------------------------------- */
    4628           2 :     else if (STARTS_WITH_CI(pszCode, "AUTO"))
    4629             :     {
    4630           2 :         char szWMSAuto[100] = {'\0'};
    4631             : 
    4632           2 :         if (strlen(pszCode) > sizeof(szWMSAuto) - 2)
    4633           0 :             return OGRERR_FAILURE;
    4634             : 
    4635           2 :         snprintf(szWMSAuto, sizeof(szWMSAuto), "AUTO:%s", pszCode + 4);
    4636          28 :         for (int i = 5; szWMSAuto[i] != '\0'; i++)
    4637             :         {
    4638          26 :             if (szWMSAuto[i] == ':')
    4639           4 :                 szWMSAuto[i] = ',';
    4640             :         }
    4641             : 
    4642           2 :         return importFromWMSAUTO(szWMSAuto);
    4643             :     }
    4644             : 
    4645             :     /* -------------------------------------------------------------------- */
    4646             :     /*      Not a recognise OGC item.                                       */
    4647             :     /* -------------------------------------------------------------------- */
    4648           0 :     CPLError(CE_Failure, CPLE_AppDefined, "URN %s value not supported.",
    4649             :              pszURN);
    4650             : 
    4651           0 :     return OGRERR_FAILURE;
    4652             : #endif
    4653             : }
    4654             : 
    4655             : /************************************************************************/
    4656             : /*                           importFromURN()                            */
    4657             : /*                                                                      */
    4658             : /*      See OGC recommendation paper 06-023r1 or later for details.     */
    4659             : /************************************************************************/
    4660             : 
    4661             : /**
    4662             :  * \brief Initialize from OGC URN.
    4663             :  *
    4664             :  * Initializes this spatial reference from a coordinate system defined
    4665             :  * by an OGC URN prefixed with "urn:ogc:def:crs:" per recommendation
    4666             :  * paper 06-023r1.  Currently EPSG and OGC authority values are supported,
    4667             :  * including OGC auto codes, but not including CRS1 or CRS88 (NAVD88).
    4668             :  *
    4669             :  * This method is also support through SetFromUserInput() which can
    4670             :  * normally be used for URNs.
    4671             :  *
    4672             :  * @param pszURN the urn string.
    4673             :  *
    4674             :  * @return OGRERR_NONE on success or an error code.
    4675             :  */
    4676             : 
    4677         845 : OGRErr OGRSpatialReference::importFromURN(const char *pszURN)
    4678             : 
    4679             : {
    4680         845 :     constexpr const char *EPSG_URN_CRS_PREFIX = "urn:ogc:def:crs:EPSG::";
    4681        1605 :     if (STARTS_WITH(pszURN, EPSG_URN_CRS_PREFIX) &&
    4682         760 :         CPLGetValueType(pszURN + strlen(EPSG_URN_CRS_PREFIX)) ==
    4683             :             CPL_VALUE_INTEGER)
    4684             :     {
    4685         757 :         return importFromEPSG(atoi(pszURN + strlen(EPSG_URN_CRS_PREFIX)));
    4686             :     }
    4687             : 
    4688         176 :     TAKE_OPTIONAL_LOCK();
    4689             : 
    4690             : #if PROJ_AT_LEAST_VERSION(8, 1, 0)
    4691             : 
    4692             :     // PROJ 8.2.0 has support for IAU codes now.
    4693             : #if !PROJ_AT_LEAST_VERSION(8, 2, 0)
    4694             :     /* -------------------------------------------------------------------- */
    4695             :     /*      Is this an IAU code?  Lets try for the IAU2000 dictionary.      */
    4696             :     /* -------------------------------------------------------------------- */
    4697             :     const char *pszIAU = strstr(pszURN, "IAU");
    4698             :     if (pszIAU)
    4699             :     {
    4700             :         const char *pszCode = strchr(pszIAU, ':');
    4701             :         if (pszCode)
    4702             :         {
    4703             :             ++pszCode;
    4704             :             if (*pszCode == ':')
    4705             :                 ++pszCode;
    4706             :             return importFromDict("IAU2000.wkt", pszCode);
    4707             :         }
    4708             :     }
    4709             : #endif
    4710             : 
    4711             :     if (strlen(pszURN) >= 1000)
    4712             :     {
    4713             :         CPLError(CE_Failure, CPLE_AppDefined, "Too long input string");
    4714             :         return OGRERR_CORRUPT_DATA;
    4715             :     }
    4716             :     auto obj = proj_create(d->getPROJContext(), pszURN);
    4717             :     if (!obj)
    4718             :     {
    4719             :         return OGRERR_FAILURE;
    4720             :     }
    4721             :     Clear();
    4722             :     d->setPjCRS(obj);
    4723             :     return OGRERR_NONE;
    4724             : #else
    4725          88 :     const char *pszCur = nullptr;
    4726             : 
    4727          88 :     if (STARTS_WITH_CI(pszURN, "urn:ogc:def:crs:"))
    4728          23 :         pszCur = pszURN + 16;
    4729          65 :     else if (STARTS_WITH_CI(pszURN, "urn:ogc:def:crs,crs:"))
    4730           1 :         pszCur = pszURN + 20;
    4731          64 :     else if (STARTS_WITH_CI(pszURN, "urn:x-ogc:def:crs:"))
    4732          62 :         pszCur = pszURN + 18;
    4733           2 :     else if (STARTS_WITH_CI(pszURN, "urn:opengis:crs:"))
    4734           0 :         pszCur = pszURN + 16;
    4735           2 :     else if (STARTS_WITH_CI(pszURN, "urn:opengis:def:crs:"))
    4736           0 :         pszCur = pszURN + 20;
    4737             :     else
    4738             :     {
    4739           2 :         CPLError(CE_Failure, CPLE_AppDefined, "URN %s not a supported format.",
    4740             :                  pszURN);
    4741           2 :         return OGRERR_FAILURE;
    4742             :     }
    4743             : 
    4744             :     /* -------------------------------------------------------------------- */
    4745             :     /*      Clear any existing definition.                                  */
    4746             :     /* -------------------------------------------------------------------- */
    4747          86 :     Clear();
    4748             : 
    4749             :     /* -------------------------------------------------------------------- */
    4750             :     /*      Find code (ignoring version) out of string like:                */
    4751             :     /*                                                                      */
    4752             :     /*      authority:[version]:code                                        */
    4753             :     /* -------------------------------------------------------------------- */
    4754          86 :     const char *pszAuthority = pszCur;
    4755             : 
    4756             :     // skip authority
    4757         414 :     while (*pszCur != ':' && *pszCur)
    4758         328 :         pszCur++;
    4759          86 :     if (*pszCur == ':')
    4760          86 :         pszCur++;
    4761             : 
    4762             :     // skip version
    4763          86 :     const char *pszBeforeVersion = pszCur;
    4764         387 :     while (*pszCur != ':' && *pszCur)
    4765         301 :         pszCur++;
    4766          86 :     if (*pszCur == ':')
    4767          58 :         pszCur++;
    4768             :     else
    4769             :         // We come here in the case, the content to parse is authority:code
    4770             :         // (instead of authority::code) which is probably illegal according to
    4771             :         // http://www.opengeospatial.org/ogcUrnPolicy but such content is found
    4772             :         // for example in what is returned by GeoServer.
    4773          28 :         pszCur = pszBeforeVersion;
    4774             : 
    4775          86 :     const char *pszCode = pszCur;
    4776             : 
    4777          86 :     const char *pszComma = strchr(pszCur, ',');
    4778          86 :     if (pszComma == nullptr)
    4779          85 :         return importFromURNPart(pszAuthority, pszCode, pszURN);
    4780             : 
    4781             :     // There's a second part with the vertical SRS.
    4782           1 :     pszCur = pszComma + 1;
    4783           1 :     if (!STARTS_WITH(pszCur, "crs:"))
    4784             :     {
    4785           0 :         CPLError(CE_Failure, CPLE_AppDefined, "URN %s not a supported format.",
    4786             :                  pszURN);
    4787           0 :         return OGRERR_FAILURE;
    4788             :     }
    4789             : 
    4790           1 :     pszCur += 4;
    4791             : 
    4792           1 :     char *pszFirstCode = CPLStrdup(pszCode);
    4793           1 :     pszFirstCode[pszComma - pszCode] = '\0';
    4794           1 :     OGRErr eStatus = importFromURNPart(pszAuthority, pszFirstCode, pszURN);
    4795           1 :     CPLFree(pszFirstCode);
    4796             : 
    4797             :     // Do we want to turn this into a compound definition
    4798             :     // with a vertical datum?
    4799           1 :     if (eStatus != OGRERR_NONE)
    4800           0 :         return eStatus;
    4801             : 
    4802             :     /* -------------------------------------------------------------------- */
    4803             :     /*      Find code (ignoring version) out of string like:                */
    4804             :     /*                                                                      */
    4805             :     /*      authority:[version]:code                                        */
    4806             :     /* -------------------------------------------------------------------- */
    4807           1 :     pszAuthority = pszCur;
    4808             : 
    4809             :     // skip authority
    4810           5 :     while (*pszCur != ':' && *pszCur)
    4811           4 :         pszCur++;
    4812           1 :     if (*pszCur == ':')
    4813           1 :         pszCur++;
    4814             : 
    4815             :     // skip version
    4816           1 :     pszBeforeVersion = pszCur;
    4817           1 :     while (*pszCur != ':' && *pszCur)
    4818           0 :         pszCur++;
    4819           1 :     if (*pszCur == ':')
    4820           1 :         pszCur++;
    4821             :     else
    4822           0 :         pszCur = pszBeforeVersion;
    4823             : 
    4824           1 :     pszCode = pszCur;
    4825             : 
    4826           2 :     OGRSpatialReference oVertSRS;
    4827           1 :     eStatus = oVertSRS.importFromURNPart(pszAuthority, pszCode, pszURN);
    4828           1 :     if (eStatus == OGRERR_NONE)
    4829             :     {
    4830           1 :         OGRSpatialReference oHorizSRS(*this);
    4831             : 
    4832           1 :         Clear();
    4833             : 
    4834           1 :         oHorizSRS.d->refreshProjObj();
    4835           1 :         oVertSRS.d->refreshProjObj();
    4836           1 :         if (!oHorizSRS.d->m_pj_crs || !oVertSRS.d->m_pj_crs)
    4837           0 :             return OGRERR_FAILURE;
    4838             : 
    4839           1 :         const char *pszHorizName = proj_get_name(oHorizSRS.d->m_pj_crs);
    4840           1 :         const char *pszVertName = proj_get_name(oVertSRS.d->m_pj_crs);
    4841             : 
    4842           2 :         CPLString osName = pszHorizName ? pszHorizName : "";
    4843           1 :         osName += " + ";
    4844           1 :         osName += pszVertName ? pszVertName : "";
    4845             : 
    4846           1 :         SetCompoundCS(osName, &oHorizSRS, &oVertSRS);
    4847             :     }
    4848             : 
    4849           1 :     return eStatus;
    4850             : #endif
    4851             : }
    4852             : 
    4853             : /************************************************************************/
    4854             : /*                           importFromCRSURL()                         */
    4855             : /*                                                                      */
    4856             : /*      See OGC Best Practice document 11-135 for details.              */
    4857             : /************************************************************************/
    4858             : 
    4859             : /**
    4860             :  * \brief Initialize from OGC URL.
    4861             :  *
    4862             :  * Initializes this spatial reference from a coordinate system defined
    4863             :  * by an OGC URL prefixed with "http://opengis.net/def/crs" per best practice
    4864             :  * paper 11-135.  Currently EPSG and OGC authority values are supported,
    4865             :  * including OGC auto codes, but not including CRS1 or CRS88 (NAVD88).
    4866             :  *
    4867             :  * This method is also supported through SetFromUserInput() which can
    4868             :  * normally be used for URLs.
    4869             :  *
    4870             :  * @param pszURL the URL string.
    4871             :  *
    4872             :  * @return OGRERR_NONE on success or an error code.
    4873             :  */
    4874             : 
    4875        6741 : OGRErr OGRSpatialReference::importFromCRSURL(const char *pszURL)
    4876             : 
    4877             : {
    4878       13482 :     TAKE_OPTIONAL_LOCK();
    4879             : 
    4880             : #if !PROJ_AT_LEAST_VERSION(9, 1, 0)
    4881        6741 :     if (strcmp(pszURL, "http://www.opengis.net/def/crs/OGC/0/CRS84h") == 0)
    4882             :     {
    4883          12 :         PJ *obj = proj_create(
    4884             :             d->getPROJContext(),
    4885             :             "GEOGCRS[\"WGS 84 longitude-latitude-height\",\n"
    4886             :             "    ENSEMBLE[\"World Geodetic System 1984 ensemble\",\n"
    4887             :             "        MEMBER[\"World Geodetic System 1984 (Transit)\"],\n"
    4888             :             "        MEMBER[\"World Geodetic System 1984 (G730)\"],\n"
    4889             :             "        MEMBER[\"World Geodetic System 1984 (G873)\"],\n"
    4890             :             "        MEMBER[\"World Geodetic System 1984 (G1150)\"],\n"
    4891             :             "        MEMBER[\"World Geodetic System 1984 (G1674)\"],\n"
    4892             :             "        MEMBER[\"World Geodetic System 1984 (G1762)\"],\n"
    4893             :             "        MEMBER[\"World Geodetic System 1984 (G2139)\"],\n"
    4894             :             "        MEMBER[\"World Geodetic System 1984 (G2296)\"],\n"
    4895             :             "        ELLIPSOID[\"WGS 84\",6378137,298.257223563,\n"
    4896             :             "            LENGTHUNIT[\"metre\",1]],\n"
    4897             :             "        ENSEMBLEACCURACY[2.0]],\n"
    4898             :             "    PRIMEM[\"Greenwich\",0,\n"
    4899             :             "        ANGLEUNIT[\"degree\",0.0174532925199433]],\n"
    4900             :             "    CS[ellipsoidal,3],\n"
    4901             :             "        AXIS[\"geodetic longitude (Lon)\",east,\n"
    4902             :             "            ORDER[1],\n"
    4903             :             "            ANGLEUNIT[\"degree\",0.0174532925199433]],\n"
    4904             :             "        AXIS[\"geodetic latitude (Lat)\",north,\n"
    4905             :             "            ORDER[2],\n"
    4906             :             "            ANGLEUNIT[\"degree\",0.0174532925199433]],\n"
    4907             :             "        AXIS[\"ellipsoidal height (h)\",up,\n"
    4908             :             "            ORDER[3],\n"
    4909             :             "            LENGTHUNIT[\"metre\",1]],\n"
    4910             :             "    USAGE[\n"
    4911             :             "        SCOPE[\"3D system frequently used in GIS, Web APIs and "
    4912             :             "Web applications\"],\n"
    4913             :             "        AREA[\"World.\"],\n"
    4914             :             "        BBOX[-90,-180,90,180]],\n"
    4915             :             "    ID[\"OGC\",\"CRS84h\"]]");
    4916          12 :         if (!obj)
    4917             :         {
    4918           0 :             return OGRERR_FAILURE;
    4919             :         }
    4920          12 :         Clear();
    4921          12 :         d->setPjCRS(obj);
    4922          12 :         return OGRERR_NONE;
    4923             :     }
    4924             : #endif
    4925             : 
    4926             : #if PROJ_AT_LEAST_VERSION(8, 1, 0)
    4927             :     if (strlen(pszURL) >= 10000)
    4928             :     {
    4929             :         CPLError(CE_Failure, CPLE_AppDefined, "Too long input string");
    4930             :         return OGRERR_CORRUPT_DATA;
    4931             :     }
    4932             : 
    4933             :     PJ *obj;
    4934             : #if !PROJ_AT_LEAST_VERSION(9, 2, 0)
    4935             :     if (STARTS_WITH(pszURL, "http://www.opengis.net/def/crs/IAU/0/"))
    4936             :     {
    4937             :         obj = proj_create(
    4938             :             d->getPROJContext(),
    4939             :             CPLSPrintf("IAU:%s",
    4940             :                        pszURL +
    4941             :                            strlen("http://www.opengis.net/def/crs/IAU/0/")));
    4942             :     }
    4943             :     else
    4944             : #endif
    4945             :     {
    4946             :         obj = proj_create(d->getPROJContext(), pszURL);
    4947             :     }
    4948             :     if (!obj)
    4949             :     {
    4950             :         return OGRERR_FAILURE;
    4951             :     }
    4952             :     Clear();
    4953             :     d->setPjCRS(obj);
    4954             :     return OGRERR_NONE;
    4955             : #else
    4956        6729 :     const char *pszCur = nullptr;
    4957             : 
    4958        6729 :     if (STARTS_WITH_CI(pszURL, "http://opengis.net/def/crs"))
    4959           2 :         pszCur = pszURL + 26;
    4960        6727 :     else if (STARTS_WITH_CI(pszURL, "https://opengis.net/def/crs"))
    4961           1 :         pszCur = pszURL + 27;
    4962        6726 :     else if (STARTS_WITH_CI(pszURL, "http://www.opengis.net/def/crs"))
    4963        6725 :         pszCur = pszURL + 30;
    4964           1 :     else if (STARTS_WITH_CI(pszURL, "https://www.opengis.net/def/crs"))
    4965           1 :         pszCur = pszURL + 31;
    4966           0 :     else if (STARTS_WITH_CI(pszURL, "www.opengis.net/def/crs"))
    4967           0 :         pszCur = pszURL + 23;
    4968             :     else
    4969             :     {
    4970           0 :         CPLError(CE_Failure, CPLE_AppDefined, "URL %s not a supported format.",
    4971             :                  pszURL);
    4972           0 :         return OGRERR_FAILURE;
    4973             :     }
    4974             : 
    4975        6729 :     if (*pszCur == '\0')
    4976             :     {
    4977           0 :         CPLError(CE_Failure, CPLE_AppDefined, "URL %s malformed.", pszURL);
    4978           0 :         return OGRERR_FAILURE;
    4979             :     }
    4980             : 
    4981             :     /* -------------------------------------------------------------------- */
    4982             :     /*      Clear any existing definition.                                  */
    4983             :     /* -------------------------------------------------------------------- */
    4984        6729 :     Clear();
    4985             : 
    4986        6729 :     if (STARTS_WITH_CI(pszCur, "-compound?1="))
    4987             :     {
    4988             :         /* --------------------------------------------------------------------
    4989             :          */
    4990             :         /*      It's a compound CRS, of the form: */
    4991             :         /*                                                                      */
    4992             :         /*      http://opengis.net/def/crs-compound?1=URL1&2=URL2&3=URL3&.. */
    4993             :         /* --------------------------------------------------------------------
    4994             :          */
    4995           1 :         pszCur += 12;
    4996             : 
    4997             :         // Extract each component CRS URL.
    4998           1 :         int iComponentUrl = 2;
    4999             : 
    5000           2 :         CPLString osName = "";
    5001           1 :         Clear();
    5002             : 
    5003           3 :         while (iComponentUrl != -1)
    5004             :         {
    5005           2 :             char searchStr[15] = {};
    5006           2 :             snprintf(searchStr, sizeof(searchStr), "&%d=", iComponentUrl);
    5007             : 
    5008           2 :             const char *pszUrlEnd = strstr(pszCur, searchStr);
    5009             : 
    5010             :             // Figure out the next component URL.
    5011           2 :             char *pszComponentUrl = nullptr;
    5012             : 
    5013           2 :             if (pszUrlEnd)
    5014             :             {
    5015           1 :                 size_t nLen = pszUrlEnd - pszCur;
    5016           1 :                 pszComponentUrl = static_cast<char *>(CPLMalloc(nLen + 1));
    5017           1 :                 strncpy(pszComponentUrl, pszCur, nLen);
    5018           1 :                 pszComponentUrl[nLen] = '\0';
    5019             : 
    5020           1 :                 ++iComponentUrl;
    5021           1 :                 pszCur += nLen + strlen(searchStr);
    5022             :             }
    5023             :             else
    5024             :             {
    5025           1 :                 if (iComponentUrl == 2)
    5026             :                 {
    5027           0 :                     CPLError(CE_Failure, CPLE_AppDefined,
    5028             :                              "Compound CRS URLs must have at least two "
    5029             :                              "component CRSs.");
    5030           0 :                     return OGRERR_FAILURE;
    5031             :                 }
    5032             :                 else
    5033             :                 {
    5034           1 :                     pszComponentUrl = CPLStrdup(pszCur);
    5035             :                     // no more components
    5036           1 :                     iComponentUrl = -1;
    5037             :                 }
    5038             :             }
    5039             : 
    5040           2 :             OGRSpatialReference oComponentSRS;
    5041           2 :             OGRErr eStatus = oComponentSRS.importFromCRSURL(pszComponentUrl);
    5042             : 
    5043           2 :             CPLFree(pszComponentUrl);
    5044           2 :             pszComponentUrl = nullptr;
    5045             : 
    5046           2 :             if (eStatus == OGRERR_NONE)
    5047             :             {
    5048           2 :                 if (osName.length() != 0)
    5049             :                 {
    5050           1 :                     osName += " + ";
    5051             :                 }
    5052           2 :                 osName += oComponentSRS.GetRoot()->GetValue();
    5053           2 :                 SetNode("COMPD_CS", osName);
    5054           2 :                 GetRoot()->AddChild(oComponentSRS.GetRoot()->Clone());
    5055             :             }
    5056             :             else
    5057           0 :                 return eStatus;
    5058             :         }
    5059             : 
    5060           1 :         return OGRERR_NONE;
    5061             :     }
    5062             : 
    5063             :     /* -------------------------------------------------------------------- */
    5064             :     /*      It's a normal CRS URL, of the form:                             */
    5065             :     /*                                                                      */
    5066             :     /*      http://opengis.net/def/crs/AUTHORITY/VERSION/CODE               */
    5067             :     /* -------------------------------------------------------------------- */
    5068        6728 :     ++pszCur;
    5069        6728 :     const char *pszAuthority = pszCur;
    5070             : 
    5071             :     // skip authority
    5072      132658 :     while (*pszCur != '/' && *pszCur)
    5073      125930 :         pszCur++;
    5074        6728 :     if (*pszCur == '/')
    5075        6727 :         pszCur++;
    5076             : 
    5077             :     // skip version
    5078       15383 :     while (*pszCur != '/' && *pszCur)
    5079        8655 :         pszCur++;
    5080        6728 :     if (*pszCur == '/')
    5081        6727 :         pszCur++;
    5082             : 
    5083        6728 :     const char *pszCode = pszCur;
    5084             : 
    5085        6728 :     return importFromURNPart(pszAuthority, pszCode, pszURL);
    5086             : #endif
    5087             : }
    5088             : 
    5089             : /************************************************************************/
    5090             : /*                         importFromWMSAUTO()                          */
    5091             : /************************************************************************/
    5092             : 
    5093             : /**
    5094             :  * \brief Initialize from WMSAUTO string.
    5095             :  *
    5096             :  * Note that the WMS 1.3 specification does not include the
    5097             :  * units code, while apparently earlier specs do.  We try to
    5098             :  * guess around this.
    5099             :  *
    5100             :  * @param pszDefinition the WMSAUTO string
    5101             :  *
    5102             :  * @return OGRERR_NONE on success or an error code.
    5103             :  */
    5104           3 : OGRErr OGRSpatialReference::importFromWMSAUTO(const char *pszDefinition)
    5105             : 
    5106             : {
    5107           6 :     TAKE_OPTIONAL_LOCK();
    5108             : 
    5109             : #if PROJ_AT_LEAST_VERSION(8, 1, 0)
    5110             :     if (strlen(pszDefinition) >= 10000)
    5111             :     {
    5112             :         CPLError(CE_Failure, CPLE_AppDefined, "Too long input string");
    5113             :         return OGRERR_CORRUPT_DATA;
    5114             :     }
    5115             : 
    5116             :     auto obj = proj_create(d->getPROJContext(), pszDefinition);
    5117             :     if (!obj)
    5118             :     {
    5119             :         return OGRERR_FAILURE;
    5120             :     }
    5121             :     Clear();
    5122             :     d->setPjCRS(obj);
    5123             :     return OGRERR_NONE;
    5124             : #else
    5125             :     int nProjId, nUnitsId;
    5126           3 :     double dfRefLong, dfRefLat = 0.0;
    5127             : 
    5128             :     /* -------------------------------------------------------------------- */
    5129             :     /*      Tokenize                                                        */
    5130             :     /* -------------------------------------------------------------------- */
    5131           3 :     if (STARTS_WITH_CI(pszDefinition, "AUTO:"))
    5132           3 :         pszDefinition += 5;
    5133             : 
    5134             :     char **papszTokens =
    5135           3 :         CSLTokenizeStringComplex(pszDefinition, ",", FALSE, TRUE);
    5136             : 
    5137           3 :     if (CSLCount(papszTokens) == 4)
    5138             :     {
    5139           0 :         nProjId = atoi(papszTokens[0]);
    5140           0 :         nUnitsId = atoi(papszTokens[1]);
    5141           0 :         dfRefLong = CPLAtof(papszTokens[2]);
    5142           0 :         dfRefLat = CPLAtof(papszTokens[3]);
    5143             :     }
    5144           3 :     else if (CSLCount(papszTokens) == 3 && atoi(papszTokens[0]) == 42005)
    5145             :     {
    5146           0 :         nProjId = atoi(papszTokens[0]);
    5147           0 :         nUnitsId = atoi(papszTokens[1]);
    5148           0 :         dfRefLong = CPLAtof(papszTokens[2]);
    5149           0 :         dfRefLat = 0.0;
    5150             :     }
    5151           3 :     else if (CSLCount(papszTokens) == 3)
    5152             :     {
    5153           2 :         nProjId = atoi(papszTokens[0]);
    5154           2 :         nUnitsId = 9001;
    5155           2 :         dfRefLong = CPLAtof(papszTokens[1]);
    5156           2 :         dfRefLat = CPLAtof(papszTokens[2]);
    5157             :     }
    5158           1 :     else if (CSLCount(papszTokens) == 2 && atoi(papszTokens[0]) == 42005)
    5159             :     {
    5160           0 :         nProjId = atoi(papszTokens[0]);
    5161           0 :         nUnitsId = 9001;
    5162           0 :         dfRefLong = CPLAtof(papszTokens[1]);
    5163             :     }
    5164             :     else
    5165             :     {
    5166           1 :         CSLDestroy(papszTokens);
    5167           1 :         CPLError(CE_Failure, CPLE_AppDefined,
    5168             :                  "AUTO projection has wrong number of arguments, expected\n"
    5169             :                  "AUTO:proj_id,units_id,ref_long,ref_lat or"
    5170             :                  "AUTO:proj_id,ref_long,ref_lat");
    5171           1 :         return OGRERR_FAILURE;
    5172             :     }
    5173             : 
    5174           2 :     CSLDestroy(papszTokens);
    5175           2 :     papszTokens = nullptr;
    5176             : 
    5177             :     /* -------------------------------------------------------------------- */
    5178             :     /*      Build coordsys.                                                 */
    5179             :     /* -------------------------------------------------------------------- */
    5180           2 :     Clear();
    5181             : 
    5182             :     /* -------------------------------------------------------------------- */
    5183             :     /*      Set WGS84.                                                      */
    5184             :     /* -------------------------------------------------------------------- */
    5185           2 :     SetWellKnownGeogCS("WGS84");
    5186             : 
    5187           2 :     switch (nProjId)
    5188             :     {
    5189           2 :         case 42001:  // Auto UTM
    5190           2 :             SetUTM(static_cast<int>(floor((dfRefLong + 180.0) / 6.0)) + 1,
    5191             :                    dfRefLat >= 0.0);
    5192           2 :             break;
    5193             : 
    5194           0 :         case 42002:  // Auto TM (strangely very UTM-like).
    5195           0 :             SetTM(0, dfRefLong, 0.9996, 500000.0,
    5196             :                   (dfRefLat >= 0.0) ? 0.0 : 10000000.0);
    5197           0 :             break;
    5198             : 
    5199           0 :         case 42003:  // Auto Orthographic.
    5200           0 :             SetOrthographic(dfRefLat, dfRefLong, 0.0, 0.0);
    5201           0 :             break;
    5202             : 
    5203           0 :         case 42004:  // Auto Equirectangular
    5204           0 :             SetEquirectangular(dfRefLat, dfRefLong, 0.0, 0.0);
    5205           0 :             break;
    5206             : 
    5207           0 :         case 42005:
    5208           0 :             SetMollweide(dfRefLong, 0.0, 0.0);
    5209           0 :             break;
    5210             : 
    5211           0 :         default:
    5212           0 :             CPLError(CE_Failure, CPLE_AppDefined,
    5213             :                      "Unsupported projection id in importFromWMSAUTO(): %d",
    5214             :                      nProjId);
    5215           0 :             return OGRERR_FAILURE;
    5216             :     }
    5217             : 
    5218             :     /* -------------------------------------------------------------------- */
    5219             :     /*      Set units.                                                      */
    5220             :     /* -------------------------------------------------------------------- */
    5221             : 
    5222           2 :     switch (nUnitsId)
    5223             :     {
    5224           2 :         case 9001:
    5225           2 :             SetTargetLinearUnits(nullptr, SRS_UL_METER, 1.0, "EPSG", "9001");
    5226           2 :             break;
    5227             : 
    5228           0 :         case 9002:
    5229           0 :             SetTargetLinearUnits(nullptr, "Foot", 0.3048, "EPSG", "9002");
    5230           0 :             break;
    5231             : 
    5232           0 :         case 9003:
    5233           0 :             SetTargetLinearUnits(nullptr, "US survey foot",
    5234             :                                  CPLAtof(SRS_UL_US_FOOT_CONV), "EPSG", "9003");
    5235           0 :             break;
    5236             : 
    5237           0 :         default:
    5238           0 :             CPLError(CE_Failure, CPLE_AppDefined,
    5239             :                      "Unsupported units code (%d).", nUnitsId);
    5240           0 :             return OGRERR_FAILURE;
    5241             :             break;
    5242             :     }
    5243             : 
    5244           2 :     return OGRERR_NONE;
    5245             : #endif
    5246             : }
    5247             : 
    5248             : /************************************************************************/
    5249             : /*                            GetSemiMajor()                            */
    5250             : /************************************************************************/
    5251             : 
    5252             : /**
    5253             :  * \brief Get spheroid semi major axis (in metres starting with GDAL 3.0)
    5254             :  *
    5255             :  * This method does the same thing as the C function OSRGetSemiMajor().
    5256             :  *
    5257             :  * @param pnErr if non-NULL set to OGRERR_FAILURE if semi major axis
    5258             :  * can be found.
    5259             :  *
    5260             :  * @return semi-major axis, or SRS_WGS84_SEMIMAJOR if it can't be found.
    5261             :  */
    5262             : 
    5263        6855 : double OGRSpatialReference::GetSemiMajor(OGRErr *pnErr) const
    5264             : 
    5265             : {
    5266       13710 :     TAKE_OPTIONAL_LOCK();
    5267             : 
    5268        6855 :     if (pnErr != nullptr)
    5269        3558 :         *pnErr = OGRERR_FAILURE;
    5270             : 
    5271        6855 :     d->refreshProjObj();
    5272        6855 :     if (!d->m_pj_crs)
    5273         111 :         return SRS_WGS84_SEMIMAJOR;
    5274             : 
    5275        6744 :     auto ellps = proj_get_ellipsoid(d->getPROJContext(), d->m_pj_crs);
    5276        6744 :     if (!ellps)
    5277           5 :         return SRS_WGS84_SEMIMAJOR;
    5278             : 
    5279        6739 :     double dfSemiMajor = 0.0;
    5280        6739 :     proj_ellipsoid_get_parameters(d->getPROJContext(), ellps, &dfSemiMajor,
    5281             :                                   nullptr, nullptr, nullptr);
    5282        6739 :     proj_destroy(ellps);
    5283             : 
    5284        6739 :     if (dfSemiMajor > 0)
    5285             :     {
    5286        6739 :         if (pnErr != nullptr)
    5287        3444 :             *pnErr = OGRERR_NONE;
    5288        6739 :         return dfSemiMajor;
    5289             :     }
    5290             : 
    5291           0 :     return SRS_WGS84_SEMIMAJOR;
    5292             : }
    5293             : 
    5294             : /************************************************************************/
    5295             : /*                          OSRGetSemiMajor()                           */
    5296             : /************************************************************************/
    5297             : 
    5298             : /**
    5299             :  * \brief Get spheroid semi major axis.
    5300             :  *
    5301             :  * This function is the same as OGRSpatialReference::GetSemiMajor()
    5302             :  */
    5303          87 : double OSRGetSemiMajor(OGRSpatialReferenceH hSRS, OGRErr *pnErr)
    5304             : 
    5305             : {
    5306          87 :     VALIDATE_POINTER1(hSRS, "OSRGetSemiMajor", 0);
    5307             : 
    5308          87 :     return ToPointer(hSRS)->GetSemiMajor(pnErr);
    5309             : }
    5310             : 
    5311             : /************************************************************************/
    5312             : /*                          GetInvFlattening()                          */
    5313             : /************************************************************************/
    5314             : 
    5315             : /**
    5316             :  * \brief Get spheroid inverse flattening.
    5317             :  *
    5318             :  * This method does the same thing as the C function OSRGetInvFlattening().
    5319             :  *
    5320             :  * @param pnErr if non-NULL set to OGRERR_FAILURE if no inverse flattening
    5321             :  * can be found.
    5322             :  *
    5323             :  * @return inverse flattening, or SRS_WGS84_INVFLATTENING if it can't be found.
    5324             :  */
    5325             : 
    5326        4528 : double OGRSpatialReference::GetInvFlattening(OGRErr *pnErr) const
    5327             : 
    5328             : {
    5329        9056 :     TAKE_OPTIONAL_LOCK();
    5330             : 
    5331        4528 :     if (pnErr != nullptr)
    5332        3448 :         *pnErr = OGRERR_FAILURE;
    5333             : 
    5334        4528 :     d->refreshProjObj();
    5335        4528 :     if (!d->m_pj_crs)
    5336         111 :         return SRS_WGS84_INVFLATTENING;
    5337             : 
    5338        4417 :     auto ellps = proj_get_ellipsoid(d->getPROJContext(), d->m_pj_crs);
    5339        4417 :     if (!ellps)
    5340           2 :         return SRS_WGS84_INVFLATTENING;
    5341             : 
    5342        4415 :     double dfInvFlattening = -1.0;
    5343        4415 :     proj_ellipsoid_get_parameters(d->getPROJContext(), ellps, nullptr, nullptr,
    5344             :                                   nullptr, &dfInvFlattening);
    5345        4415 :     proj_destroy(ellps);
    5346             : 
    5347        4415 :     if (dfInvFlattening >= 0.0)
    5348             :     {
    5349        4415 :         if (pnErr != nullptr)
    5350        3337 :             *pnErr = OGRERR_NONE;
    5351        4415 :         return dfInvFlattening;
    5352             :     }
    5353             : 
    5354           0 :     return SRS_WGS84_INVFLATTENING;
    5355             : }
    5356             : 
    5357             : /************************************************************************/
    5358             : /*                        OSRGetInvFlattening()                         */
    5359             : /************************************************************************/
    5360             : 
    5361             : /**
    5362             :  * \brief Get spheroid inverse flattening.
    5363             :  *
    5364             :  * This function is the same as OGRSpatialReference::GetInvFlattening()
    5365             :  */
    5366          10 : double OSRGetInvFlattening(OGRSpatialReferenceH hSRS, OGRErr *pnErr)
    5367             : 
    5368             : {
    5369          10 :     VALIDATE_POINTER1(hSRS, "OSRGetInvFlattening", 0);
    5370             : 
    5371          10 :     return ToPointer(hSRS)->GetInvFlattening(pnErr);
    5372             : }
    5373             : 
    5374             : /************************************************************************/
    5375             : /*                          GetEccentricity()                           */
    5376             : /************************************************************************/
    5377             : 
    5378             : /**
    5379             :  * \brief Get spheroid eccentricity
    5380             :  *
    5381             :  * @return eccentricity (or -1 in case of error)
    5382             :  */
    5383             : 
    5384           0 : double OGRSpatialReference::GetEccentricity() const
    5385             : 
    5386             : {
    5387           0 :     OGRErr eErr = OGRERR_NONE;
    5388           0 :     const double dfInvFlattening = GetInvFlattening(&eErr);
    5389           0 :     if (eErr != OGRERR_NONE)
    5390             :     {
    5391           0 :         return -1.0;
    5392             :     }
    5393           0 :     if (dfInvFlattening == 0.0)
    5394           0 :         return 0.0;
    5395           0 :     if (dfInvFlattening < 0.5)
    5396           0 :         return -1.0;
    5397           0 :     return sqrt(2.0 / dfInvFlattening -
    5398           0 :                 1.0 / (dfInvFlattening * dfInvFlattening));
    5399             : }
    5400             : 
    5401             : /************************************************************************/
    5402             : /*                       GetSquaredEccentricity()                       */
    5403             : /************************************************************************/
    5404             : 
    5405             : /**
    5406             :  * \brief Get spheroid squared eccentricity
    5407             :  *
    5408             :  * @return squared eccentricity (or -1 in case of error)
    5409             :  */
    5410             : 
    5411           0 : double OGRSpatialReference::GetSquaredEccentricity() const
    5412             : 
    5413             : {
    5414           0 :     OGRErr eErr = OGRERR_NONE;
    5415           0 :     const double dfInvFlattening = GetInvFlattening(&eErr);
    5416           0 :     if (eErr != OGRERR_NONE)
    5417             :     {
    5418           0 :         return -1.0;
    5419             :     }
    5420           0 :     if (dfInvFlattening == 0.0)
    5421           0 :         return 0.0;
    5422           0 :     if (dfInvFlattening < 0.5)
    5423           0 :         return -1.0;
    5424           0 :     return 2.0 / dfInvFlattening - 1.0 / (dfInvFlattening * dfInvFlattening);
    5425             : }
    5426             : 
    5427             : /************************************************************************/
    5428             : /*                            GetSemiMinor()                            */
    5429             : /************************************************************************/
    5430             : 
    5431             : /**
    5432             :  * \brief Get spheroid semi minor axis.
    5433             :  *
    5434             :  * This method does the same thing as the C function OSRGetSemiMinor().
    5435             :  *
    5436             :  * @param pnErr if non-NULL set to OGRERR_FAILURE if semi minor axis
    5437             :  * can be found.
    5438             :  *
    5439             :  * @return semi-minor axis, or WGS84 semi minor if it can't be found.
    5440             :  */
    5441             : 
    5442         651 : double OGRSpatialReference::GetSemiMinor(OGRErr *pnErr) const
    5443             : 
    5444             : {
    5445         651 :     const double dfSemiMajor = GetSemiMajor(pnErr);
    5446         651 :     const double dfInvFlattening = GetInvFlattening(pnErr);
    5447             : 
    5448         651 :     return OSRCalcSemiMinorFromInvFlattening(dfSemiMajor, dfInvFlattening);
    5449             : }
    5450             : 
    5451             : /************************************************************************/
    5452             : /*                          OSRGetSemiMinor()                           */
    5453             : /************************************************************************/
    5454             : 
    5455             : /**
    5456             :  * \brief Get spheroid semi minor axis.
    5457             :  *
    5458             :  * This function is the same as OGRSpatialReference::GetSemiMinor()
    5459             :  */
    5460           4 : double OSRGetSemiMinor(OGRSpatialReferenceH hSRS, OGRErr *pnErr)
    5461             : 
    5462             : {
    5463           4 :     VALIDATE_POINTER1(hSRS, "OSRGetSemiMinor", 0);
    5464             : 
    5465           4 :     return ToPointer(hSRS)->GetSemiMinor(pnErr);
    5466             : }
    5467             : 
    5468             : /************************************************************************/
    5469             : /*                             SetLocalCS()                             */
    5470             : /************************************************************************/
    5471             : 
    5472             : /**
    5473             :  * \brief Set the user visible LOCAL_CS name.
    5474             :  *
    5475             :  * This method is the same as the C function OSRSetLocalCS().
    5476             :  *
    5477             :  * This method will ensure a LOCAL_CS node is created as the root,
    5478             :  * and set the provided name on it.  It must be used before SetLinearUnits().
    5479             :  *
    5480             :  * @param pszName the user visible name to assign.  Not used as a key.
    5481             :  *
    5482             :  * @return OGRERR_NONE on success.
    5483             :  */
    5484             : 
    5485        2898 : OGRErr OGRSpatialReference::SetLocalCS(const char *pszName)
    5486             : 
    5487             : {
    5488        5796 :     TAKE_OPTIONAL_LOCK();
    5489             : 
    5490        2898 :     if (d->m_pjType == PJ_TYPE_UNKNOWN ||
    5491           0 :         d->m_pjType == PJ_TYPE_ENGINEERING_CRS)
    5492             :     {
    5493        2898 :         d->setPjCRS(proj_create_engineering_crs(d->getPROJContext(), pszName));
    5494             :     }
    5495             :     else
    5496             :     {
    5497           0 :         CPLDebug("OGR",
    5498             :                  "OGRSpatialReference::SetLocalCS(%s) failed.  "
    5499             :                  "It appears an incompatible object already exists.",
    5500             :                  pszName);
    5501           0 :         return OGRERR_FAILURE;
    5502             :     }
    5503             : 
    5504        2898 :     return OGRERR_NONE;
    5505             : }
    5506             : 
    5507             : /************************************************************************/
    5508             : /*                           OSRSetLocalCS()                            */
    5509             : /************************************************************************/
    5510             : 
    5511             : /**
    5512             :  * \brief Set the user visible LOCAL_CS name.
    5513             :  *
    5514             :  * This function is the same as OGRSpatialReference::SetLocalCS()
    5515             :  */
    5516           1 : OGRErr OSRSetLocalCS(OGRSpatialReferenceH hSRS, const char *pszName)
    5517             : 
    5518             : {
    5519           1 :     VALIDATE_POINTER1(hSRS, "OSRSetLocalCS", OGRERR_FAILURE);
    5520             : 
    5521           1 :     return ToPointer(hSRS)->SetLocalCS(pszName);
    5522             : }
    5523             : 
    5524             : /************************************************************************/
    5525             : /*                             SetGeocCS()                              */
    5526             : /************************************************************************/
    5527             : 
    5528             : /**
    5529             :  * \brief Set the user visible GEOCCS name.
    5530             :  *
    5531             :  * This method is the same as the C function OSRSetGeocCS().
    5532             : 
    5533             :  * This method will ensure a GEOCCS node is created as the root,
    5534             :  * and set the provided name on it.  If used on a GEOGCS coordinate system,
    5535             :  * the DATUM and PRIMEM nodes from the GEOGCS will be transferred over to
    5536             :  * the GEOGCS.
    5537             :  *
    5538             :  * @param pszName the user visible name to assign.  Not used as a key.
    5539             :  *
    5540             :  * @return OGRERR_NONE on success.
    5541             :  *
    5542             :  */
    5543             : 
    5544           6 : OGRErr OGRSpatialReference::SetGeocCS(const char *pszName)
    5545             : 
    5546             : {
    5547          12 :     TAKE_OPTIONAL_LOCK();
    5548             : 
    5549           6 :     OGRErr eErr = OGRERR_NONE;
    5550           6 :     d->refreshProjObj();
    5551           6 :     d->demoteFromBoundCRS();
    5552           6 :     if (d->m_pjType == PJ_TYPE_UNKNOWN)
    5553             :     {
    5554           3 :         d->setPjCRS(proj_create_geocentric_crs(
    5555             :             d->getPROJContext(), pszName, "World Geodetic System 1984",
    5556             :             "WGS 84", SRS_WGS84_SEMIMAJOR, SRS_WGS84_INVFLATTENING,
    5557             :             SRS_PM_GREENWICH, 0.0, SRS_UA_DEGREE, CPLAtof(SRS_UA_DEGREE_CONV),
    5558             :             "Metre", 1.0));
    5559             :     }
    5560           3 :     else if (d->m_pjType == PJ_TYPE_GEOCENTRIC_CRS)
    5561             :     {
    5562           1 :         d->setPjCRS(proj_alter_name(d->getPROJContext(), d->m_pj_crs, pszName));
    5563             :     }
    5564           3 :     else if (d->m_pjType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    5565           1 :              d->m_pjType == PJ_TYPE_GEOGRAPHIC_3D_CRS)
    5566             :     {
    5567           1 :         auto datum = proj_crs_get_datum(d->getPROJContext(), d->m_pj_crs);
    5568             : #if PROJ_VERSION_MAJOR > 7 ||                                                  \
    5569             :     (PROJ_VERSION_MAJOR == 7 && PROJ_VERSION_MINOR >= 2)
    5570             :         if (datum == nullptr)
    5571             :         {
    5572             :             datum =
    5573             :                 proj_crs_get_datum_ensemble(d->getPROJContext(), d->m_pj_crs);
    5574             :         }
    5575             : #endif
    5576           1 :         if (datum == nullptr)
    5577             :         {
    5578           0 :             d->undoDemoteFromBoundCRS();
    5579           0 :             return OGRERR_FAILURE;
    5580             :         }
    5581             : 
    5582           1 :         auto pj_crs = proj_create_geocentric_crs_from_datum(
    5583           1 :             d->getPROJContext(), proj_get_name(d->m_pj_crs), datum, nullptr,
    5584             :             0.0);
    5585           1 :         d->setPjCRS(pj_crs);
    5586             : 
    5587           1 :         proj_destroy(datum);
    5588             :     }
    5589             :     else
    5590             :     {
    5591           1 :         CPLDebug("OGR",
    5592             :                  "OGRSpatialReference::SetGeocCS(%s) failed.  "
    5593             :                  "It appears an incompatible object already exists.",
    5594             :                  pszName);
    5595           1 :         eErr = OGRERR_FAILURE;
    5596             :     }
    5597           6 :     d->undoDemoteFromBoundCRS();
    5598             : 
    5599           6 :     return eErr;
    5600             : }
    5601             : 
    5602             : /************************************************************************/
    5603             : /*                            OSRSetGeocCS()                            */
    5604             : /************************************************************************/
    5605             : 
    5606             : /**
    5607             :  * \brief Set the user visible PROJCS name.
    5608             :  *
    5609             :  * This function is the same as OGRSpatialReference::SetGeocCS()
    5610             :  *
    5611             :  */
    5612           4 : OGRErr OSRSetGeocCS(OGRSpatialReferenceH hSRS, const char *pszName)
    5613             : 
    5614             : {
    5615           4 :     VALIDATE_POINTER1(hSRS, "OSRSetGeocCS", OGRERR_FAILURE);
    5616             : 
    5617           4 :     return ToPointer(hSRS)->SetGeocCS(pszName);
    5618             : }
    5619             : 
    5620             : /************************************************************************/
    5621             : /*                             SetVertCS()                              */
    5622             : /************************************************************************/
    5623             : 
    5624             : /**
    5625             :  * \brief Set the user visible VERT_CS name.
    5626             :  *
    5627             :  * This method is the same as the C function OSRSetVertCS().
    5628             : 
    5629             :  * This method will ensure a VERT_CS node is created if needed.  If the
    5630             :  * existing coordinate system is GEOGCS or PROJCS rooted, then it will be
    5631             :  * turned into a COMPD_CS.
    5632             :  *
    5633             :  * @param pszVertCSName the user visible name of the vertical coordinate
    5634             :  * system. Not used as a key.
    5635             :  *
    5636             :  * @param pszVertDatumName the user visible name of the vertical datum.  It
    5637             :  * is helpful if this matches the EPSG name.
    5638             :  *
    5639             :  * @param nVertDatumType the OGC vertical datum type. Ignored
    5640             :  *
    5641             :  * @return OGRERR_NONE on success.
    5642             :  *
    5643             :  */
    5644             : 
    5645           1 : OGRErr OGRSpatialReference::SetVertCS(const char *pszVertCSName,
    5646             :                                       const char *pszVertDatumName,
    5647             :                                       int nVertDatumType)
    5648             : 
    5649             : {
    5650           1 :     TAKE_OPTIONAL_LOCK();
    5651             : 
    5652           1 :     CPL_IGNORE_RET_VAL(nVertDatumType);
    5653             : 
    5654           1 :     d->refreshProjObj();
    5655             : 
    5656           1 :     auto vertCRS = proj_create_vertical_crs(d->getPROJContext(), pszVertCSName,
    5657             :                                             pszVertDatumName, nullptr, 0.0);
    5658             : 
    5659             :     /* -------------------------------------------------------------------- */
    5660             :     /*      Handle the case where we want to make a compound coordinate     */
    5661             :     /*      system.                                                         */
    5662             :     /* -------------------------------------------------------------------- */
    5663           1 :     if (IsProjected() || IsGeographic())
    5664             :     {
    5665           1 :         auto compoundCRS = proj_create_compound_crs(
    5666           1 :             d->getPROJContext(), nullptr, d->m_pj_crs, vertCRS);
    5667           1 :         proj_destroy(vertCRS);
    5668           1 :         d->setPjCRS(compoundCRS);
    5669             :     }
    5670             :     else
    5671             :     {
    5672           0 :         d->setPjCRS(vertCRS);
    5673             :     }
    5674           2 :     return OGRERR_NONE;
    5675             : }
    5676             : 
    5677             : /************************************************************************/
    5678             : /*                            OSRSetVertCS()                            */
    5679             : /************************************************************************/
    5680             : 
    5681             : /**
    5682             :  * \brief Setup the vertical coordinate system.
    5683             :  *
    5684             :  * This function is the same as OGRSpatialReference::SetVertCS()
    5685             :  *
    5686             :  */
    5687           0 : OGRErr OSRSetVertCS(OGRSpatialReferenceH hSRS, const char *pszVertCSName,
    5688             :                     const char *pszVertDatumName, int nVertDatumType)
    5689             : 
    5690             : {
    5691           0 :     VALIDATE_POINTER1(hSRS, "OSRSetVertCS", OGRERR_FAILURE);
    5692             : 
    5693           0 :     return ToPointer(hSRS)->SetVertCS(pszVertCSName, pszVertDatumName,
    5694           0 :                                       nVertDatumType);
    5695             : }
    5696             : 
    5697             : /************************************************************************/
    5698             : /*                           SetCompoundCS()                            */
    5699             : /************************************************************************/
    5700             : 
    5701             : /**
    5702             :  * \brief Setup a compound coordinate system.
    5703             :  *
    5704             :  * This method is the same as the C function OSRSetCompoundCS().
    5705             : 
    5706             :  * This method is replace the current SRS with a COMPD_CS coordinate system
    5707             :  * consisting of the passed in horizontal and vertical coordinate systems.
    5708             :  *
    5709             :  * @param pszName the name of the compound coordinate system.
    5710             :  *
    5711             :  * @param poHorizSRS the horizontal SRS (PROJCS or GEOGCS).
    5712             :  *
    5713             :  * @param poVertSRS the vertical SRS (VERT_CS).
    5714             :  *
    5715             :  * @return OGRERR_NONE on success.
    5716             :  */
    5717             : 
    5718          92 : OGRErr OGRSpatialReference::SetCompoundCS(const char *pszName,
    5719             :                                           const OGRSpatialReference *poHorizSRS,
    5720             :                                           const OGRSpatialReference *poVertSRS)
    5721             : 
    5722             : {
    5723         184 :     TAKE_OPTIONAL_LOCK();
    5724             : 
    5725             :     /* -------------------------------------------------------------------- */
    5726             :     /*      Verify these are legal horizontal and vertical coordinate       */
    5727             :     /*      systems.                                                        */
    5728             :     /* -------------------------------------------------------------------- */
    5729          92 :     if (!poVertSRS->IsVertical())
    5730             :     {
    5731           0 :         CPLError(CE_Failure, CPLE_AppDefined,
    5732             :                  "SetCompoundCS() fails, vertical component is not VERT_CS.");
    5733           0 :         return OGRERR_FAILURE;
    5734             :     }
    5735          92 :     if (!poHorizSRS->IsProjected() && !poHorizSRS->IsGeographic())
    5736             :     {
    5737           0 :         CPLError(CE_Failure, CPLE_AppDefined,
    5738             :                  "SetCompoundCS() fails, horizontal component is not PROJCS or "
    5739             :                  "GEOGCS.");
    5740           0 :         return OGRERR_FAILURE;
    5741             :     }
    5742             : 
    5743             :     /* -------------------------------------------------------------------- */
    5744             :     /*      Replace with compound srs.                                      */
    5745             :     /* -------------------------------------------------------------------- */
    5746          92 :     Clear();
    5747             : 
    5748          92 :     auto compoundCRS = proj_create_compound_crs(d->getPROJContext(), pszName,
    5749          92 :                                                 poHorizSRS->d->m_pj_crs,
    5750          92 :                                                 poVertSRS->d->m_pj_crs);
    5751          92 :     d->setPjCRS(compoundCRS);
    5752             : 
    5753          92 :     return OGRERR_NONE;
    5754             : }
    5755             : 
    5756             : /************************************************************************/
    5757             : /*                          OSRSetCompoundCS()                          */
    5758             : /************************************************************************/
    5759             : 
    5760             : /**
    5761             :  * \brief Setup a compound coordinate system.
    5762             :  *
    5763             :  * This function is the same as OGRSpatialReference::SetCompoundCS()
    5764             :  */
    5765           8 : OGRErr OSRSetCompoundCS(OGRSpatialReferenceH hSRS, const char *pszName,
    5766             :                         OGRSpatialReferenceH hHorizSRS,
    5767             :                         OGRSpatialReferenceH hVertSRS)
    5768             : 
    5769             : {
    5770           8 :     VALIDATE_POINTER1(hSRS, "OSRSetCompoundCS", OGRERR_FAILURE);
    5771           8 :     VALIDATE_POINTER1(hHorizSRS, "OSRSetCompoundCS", OGRERR_FAILURE);
    5772           8 :     VALIDATE_POINTER1(hVertSRS, "OSRSetCompoundCS", OGRERR_FAILURE);
    5773             : 
    5774          16 :     return ToPointer(hSRS)->SetCompoundCS(pszName, ToPointer(hHorizSRS),
    5775          16 :                                           ToPointer(hVertSRS));
    5776             : }
    5777             : 
    5778             : /************************************************************************/
    5779             : /*                             SetProjCS()                              */
    5780             : /************************************************************************/
    5781             : 
    5782             : /**
    5783             :  * \brief Set the user visible PROJCS name.
    5784             :  *
    5785             :  * This method is the same as the C function OSRSetProjCS().
    5786             :  *
    5787             :  * This method will ensure a PROJCS node is created as the root,
    5788             :  * and set the provided name on it.  If used on a GEOGCS coordinate system,
    5789             :  * the GEOGCS node will be demoted to be a child of the new PROJCS root.
    5790             :  *
    5791             :  * @param pszName the user visible name to assign.  Not used as a key.
    5792             :  *
    5793             :  * @return OGRERR_NONE on success.
    5794             :  */
    5795             : 
    5796        4822 : OGRErr OGRSpatialReference::SetProjCS(const char *pszName)
    5797             : 
    5798             : {
    5799        4822 :     TAKE_OPTIONAL_LOCK();
    5800             : 
    5801        4822 :     d->refreshProjObj();
    5802        4822 :     d->demoteFromBoundCRS();
    5803        4822 :     if (d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    5804             :     {
    5805         489 :         d->setPjCRS(proj_alter_name(d->getPROJContext(), d->m_pj_crs, pszName));
    5806             :     }
    5807             :     else
    5808             :     {
    5809        4333 :         auto dummyConv = proj_create_conversion(d->getPROJContext(), nullptr,
    5810             :                                                 nullptr, nullptr, nullptr,
    5811             :                                                 nullptr, nullptr, 0, nullptr);
    5812        4333 :         auto cs = proj_create_cartesian_2D_cs(
    5813             :             d->getPROJContext(), PJ_CART2D_EASTING_NORTHING, nullptr, 0);
    5814             : 
    5815        4333 :         auto projCRS = proj_create_projected_crs(
    5816        4333 :             d->getPROJContext(), pszName, d->getGeodBaseCRS(), dummyConv, cs);
    5817        4333 :         proj_destroy(dummyConv);
    5818        4333 :         proj_destroy(cs);
    5819             : 
    5820        4333 :         d->setPjCRS(projCRS);
    5821             :     }
    5822        4822 :     d->undoDemoteFromBoundCRS();
    5823        9644 :     return OGRERR_NONE;
    5824             : }
    5825             : 
    5826             : /************************************************************************/
    5827             : /*                            OSRSetProjCS()                            */
    5828             : /************************************************************************/
    5829             : 
    5830             : /**
    5831             :  * \brief Set the user visible PROJCS name.
    5832             :  *
    5833             :  * This function is the same as OGRSpatialReference::SetProjCS()
    5834             :  */
    5835           1 : OGRErr OSRSetProjCS(OGRSpatialReferenceH hSRS, const char *pszName)
    5836             : 
    5837             : {
    5838           1 :     VALIDATE_POINTER1(hSRS, "OSRSetProjCS", OGRERR_FAILURE);
    5839             : 
    5840           1 :     return ToPointer(hSRS)->SetProjCS(pszName);
    5841             : }
    5842             : 
    5843             : /************************************************************************/
    5844             : /*                           SetProjection()                            */
    5845             : /************************************************************************/
    5846             : 
    5847             : /**
    5848             :  * \brief Set a projection name.
    5849             :  *
    5850             :  * This method is the same as the C function OSRSetProjection().
    5851             :  *
    5852             :  * @param pszProjection the projection name, which should be selected from
    5853             :  * the macros in ogr_srs_api.h, such as SRS_PT_TRANSVERSE_MERCATOR.
    5854             :  *
    5855             :  * @return OGRERR_NONE on success.
    5856             :  */
    5857             : 
    5858          23 : OGRErr OGRSpatialReference::SetProjection(const char *pszProjection)
    5859             : 
    5860             : {
    5861          46 :     TAKE_OPTIONAL_LOCK();
    5862             : 
    5863          23 :     OGR_SRSNode *poGeogCS = nullptr;
    5864             : 
    5865          23 :     if (GetRoot() != nullptr && EQUAL(d->m_poRoot->GetValue(), "GEOGCS"))
    5866             :     {
    5867           4 :         poGeogCS = d->m_poRoot;
    5868           4 :         d->m_poRoot = nullptr;
    5869             :     }
    5870             : 
    5871          23 :     if (!GetAttrNode("PROJCS"))
    5872             :     {
    5873          11 :         SetNode("PROJCS", "unnamed");
    5874             :     }
    5875             : 
    5876          23 :     const OGRErr eErr = SetNode("PROJCS|PROJECTION", pszProjection);
    5877          23 :     if (eErr != OGRERR_NONE)
    5878           0 :         return eErr;
    5879             : 
    5880          23 :     if (poGeogCS != nullptr)
    5881           4 :         d->m_poRoot->InsertChild(poGeogCS, 1);
    5882             : 
    5883          23 :     return OGRERR_NONE;
    5884             : }
    5885             : 
    5886             : /************************************************************************/
    5887             : /*                          OSRSetProjection()                          */
    5888             : /************************************************************************/
    5889             : 
    5890             : /**
    5891             :  * \brief Set a projection name.
    5892             :  *
    5893             :  * This function is the same as OGRSpatialReference::SetProjection()
    5894             :  */
    5895           0 : OGRErr OSRSetProjection(OGRSpatialReferenceH hSRS, const char *pszProjection)
    5896             : 
    5897             : {
    5898           0 :     VALIDATE_POINTER1(hSRS, "OSRSetProjection", OGRERR_FAILURE);
    5899             : 
    5900           0 :     return ToPointer(hSRS)->SetProjection(pszProjection);
    5901             : }
    5902             : 
    5903             : /************************************************************************/
    5904             : /*                      GetWKT2ProjectionMethod()                       */
    5905             : /************************************************************************/
    5906             : 
    5907             : /**
    5908             :  * \brief Returns info on the projection method, based on WKT2 naming
    5909             :  * conventions.
    5910             :  *
    5911             :  * The returned strings are short lived and should be considered to be
    5912             :  * invalidated by any further call to the GDAL API.
    5913             :  *
    5914             :  * @param[out] ppszMethodName Pointer to a string that will receive the
    5915             :  * projection method name.
    5916             :  * @param[out] ppszMethodAuthName null pointer, or pointer to a string that will
    5917             :  * receive the name of the authority that defines the projection method.
    5918             :  * *ppszMethodAuthName may be nullptr if the projection method is not linked to
    5919             :  * an authority.
    5920             :  * @param[out] ppszMethodCode null pointer, or pointer to a string that will
    5921             :  * receive the code that defines the projection method.
    5922             :  * *ppszMethodCode may be nullptr if the projection method is not linked to
    5923             :  * an authority.
    5924             :  *
    5925             :  * @return OGRERR_NONE on success.
    5926             :  */
    5927             : OGRErr
    5928           1 : OGRSpatialReference::GetWKT2ProjectionMethod(const char **ppszMethodName,
    5929             :                                              const char **ppszMethodAuthName,
    5930             :                                              const char **ppszMethodCode) const
    5931             : {
    5932           2 :     TAKE_OPTIONAL_LOCK();
    5933             : 
    5934           1 :     auto conv = proj_crs_get_coordoperation(d->getPROJContext(), d->m_pj_crs);
    5935           1 :     if (!conv)
    5936           0 :         return OGRERR_FAILURE;
    5937           1 :     const char *pszTmpMethodName = "";
    5938           1 :     const char *pszTmpMethodAuthName = "";
    5939           1 :     const char *pszTmpMethodCode = "";
    5940           1 :     int ret = proj_coordoperation_get_method_info(
    5941             :         d->getPROJContext(), conv, &pszTmpMethodName, &pszTmpMethodAuthName,
    5942             :         &pszTmpMethodCode);
    5943             :     // "Internalize" temporary strings returned by PROJ
    5944           1 :     CPLAssert(pszTmpMethodName);
    5945           1 :     if (ppszMethodName)
    5946           1 :         *ppszMethodName = CPLSPrintf("%s", pszTmpMethodName);
    5947           1 :     if (ppszMethodAuthName)
    5948           0 :         *ppszMethodAuthName = pszTmpMethodAuthName
    5949           0 :                                   ? CPLSPrintf("%s", pszTmpMethodAuthName)
    5950           0 :                                   : nullptr;
    5951           1 :     if (ppszMethodCode)
    5952           0 :         *ppszMethodCode =
    5953           0 :             pszTmpMethodCode ? CPLSPrintf("%s", pszTmpMethodCode) : nullptr;
    5954           1 :     proj_destroy(conv);
    5955           1 :     return ret ? OGRERR_NONE : OGRERR_FAILURE;
    5956             : }
    5957             : 
    5958             : /************************************************************************/
    5959             : /*                            SetProjParm()                             */
    5960             : /************************************************************************/
    5961             : 
    5962             : /**
    5963             :  * \brief Set a projection parameter value.
    5964             :  *
    5965             :  * Adds a new PARAMETER under the PROJCS with the indicated name and value.
    5966             :  *
    5967             :  * This method is the same as the C function OSRSetProjParm().
    5968             :  *
    5969             :  * Please check https://gdal.org/proj_list pages for
    5970             :  * legal parameter names for specific projections.
    5971             :  *
    5972             :  *
    5973             :  * @param pszParamName the parameter name, which should be selected from
    5974             :  * the macros in ogr_srs_api.h, such as SRS_PP_CENTRAL_MERIDIAN.
    5975             :  *
    5976             :  * @param dfValue value to assign.
    5977             :  *
    5978             :  * @return OGRERR_NONE on success.
    5979             :  */
    5980             : 
    5981         129 : OGRErr OGRSpatialReference::SetProjParm(const char *pszParamName,
    5982             :                                         double dfValue)
    5983             : 
    5984             : {
    5985         258 :     TAKE_OPTIONAL_LOCK();
    5986             : 
    5987         129 :     OGR_SRSNode *poPROJCS = GetAttrNode("PROJCS");
    5988             : 
    5989         129 :     if (poPROJCS == nullptr)
    5990           3 :         return OGRERR_FAILURE;
    5991             : 
    5992         126 :     char szValue[64] = {'\0'};
    5993         126 :     OGRsnPrintDouble(szValue, sizeof(szValue), dfValue);
    5994             : 
    5995             :     /* -------------------------------------------------------------------- */
    5996             :     /*      Try to find existing parameter with this name.                  */
    5997             :     /* -------------------------------------------------------------------- */
    5998        1030 :     for (int iChild = 0; iChild < poPROJCS->GetChildCount(); iChild++)
    5999             :     {
    6000         943 :         OGR_SRSNode *poParam = poPROJCS->GetChild(iChild);
    6001             : 
    6002        1242 :         if (EQUAL(poParam->GetValue(), "PARAMETER") &&
    6003        1242 :             poParam->GetChildCount() == 2 &&
    6004         299 :             EQUAL(poParam->GetChild(0)->GetValue(), pszParamName))
    6005             :         {
    6006          39 :             poParam->GetChild(1)->SetValue(szValue);
    6007          39 :             return OGRERR_NONE;
    6008             :         }
    6009             :     }
    6010             : 
    6011             :     /* -------------------------------------------------------------------- */
    6012             :     /*      Otherwise create a new parameter and append.                    */
    6013             :     /* -------------------------------------------------------------------- */
    6014          87 :     OGR_SRSNode *poParam = new OGR_SRSNode("PARAMETER");
    6015          87 :     poParam->AddChild(new OGR_SRSNode(pszParamName));
    6016          87 :     poParam->AddChild(new OGR_SRSNode(szValue));
    6017             : 
    6018          87 :     poPROJCS->AddChild(poParam);
    6019             : 
    6020          87 :     return OGRERR_NONE;
    6021             : }
    6022             : 
    6023             : /************************************************************************/
    6024             : /*                           OSRSetProjParm()                           */
    6025             : /************************************************************************/
    6026             : 
    6027             : /**
    6028             :  * \brief Set a projection parameter value.
    6029             :  *
    6030             :  * This function is the same as OGRSpatialReference::SetProjParm()
    6031             :  */
    6032           0 : OGRErr OSRSetProjParm(OGRSpatialReferenceH hSRS, const char *pszParamName,
    6033             :                       double dfValue)
    6034             : 
    6035             : {
    6036           0 :     VALIDATE_POINTER1(hSRS, "OSRSetProjParm", OGRERR_FAILURE);
    6037             : 
    6038           0 :     return ToPointer(hSRS)->SetProjParm(pszParamName, dfValue);
    6039             : }
    6040             : 
    6041             : /************************************************************************/
    6042             : /*                            FindProjParm()                            */
    6043             : /************************************************************************/
    6044             : 
    6045             : /**
    6046             :  * \brief Return the child index of the named projection parameter on
    6047             :  * its parent PROJCS node.
    6048             :  *
    6049             :  * @param pszParameter projection parameter to look for
    6050             :  * @param poPROJCS projection CS node to look in. If NULL is passed,
    6051             :  *        the PROJCS node of the SpatialReference object will be searched.
    6052             :  *
    6053             :  * @return the child index of the named projection parameter. -1 on failure
    6054             :  */
    6055        5152 : int OGRSpatialReference::FindProjParm(const char *pszParameter,
    6056             :                                       const OGR_SRSNode *poPROJCS) const
    6057             : 
    6058             : {
    6059       10304 :     TAKE_OPTIONAL_LOCK();
    6060             : 
    6061        5152 :     if (poPROJCS == nullptr)
    6062           0 :         poPROJCS = GetAttrNode("PROJCS");
    6063             : 
    6064        5152 :     if (poPROJCS == nullptr)
    6065           0 :         return -1;
    6066             : 
    6067             :     /* -------------------------------------------------------------------- */
    6068             :     /*      Search for requested parameter.                                 */
    6069             :     /* -------------------------------------------------------------------- */
    6070        5152 :     bool bIsWKT2 = false;
    6071       33875 :     for (int iChild = 0; iChild < poPROJCS->GetChildCount(); iChild++)
    6072             :     {
    6073       33204 :         const OGR_SRSNode *poParameter = poPROJCS->GetChild(iChild);
    6074             : 
    6075       33204 :         if (poParameter->GetChildCount() >= 2)
    6076             :         {
    6077       22941 :             const char *pszValue = poParameter->GetValue();
    6078       37857 :             if (EQUAL(pszValue, "PARAMETER") &&
    6079       14916 :                 EQUAL(poPROJCS->GetChild(iChild)->GetChild(0)->GetValue(),
    6080             :                       pszParameter))
    6081             :             {
    6082        4481 :                 return iChild;
    6083             :             }
    6084       18460 :             else if (EQUAL(pszValue, "METHOD"))
    6085             :             {
    6086          41 :                 bIsWKT2 = true;
    6087             :             }
    6088             :         }
    6089             :     }
    6090             : 
    6091             :     /* -------------------------------------------------------------------- */
    6092             :     /*      Try similar names, for selected parameters.                     */
    6093             :     /* -------------------------------------------------------------------- */
    6094         671 :     if (EQUAL(pszParameter, SRS_PP_LATITUDE_OF_ORIGIN))
    6095             :     {
    6096         314 :         if (bIsWKT2)
    6097             :         {
    6098           8 :             int iChild = FindProjParm(
    6099             :                 EPSG_NAME_PARAMETER_LATITUDE_OF_NATURAL_ORIGIN, poPROJCS);
    6100           8 :             if (iChild == -1)
    6101           3 :                 iChild = FindProjParm(
    6102             :                     EPSG_NAME_PARAMETER_LATITUDE_PROJECTION_CENTRE, poPROJCS);
    6103           8 :             return iChild;
    6104             :         }
    6105         306 :         return FindProjParm(SRS_PP_LATITUDE_OF_CENTER, poPROJCS);
    6106             :     }
    6107             : 
    6108         357 :     if (EQUAL(pszParameter, SRS_PP_CENTRAL_MERIDIAN))
    6109             :     {
    6110          38 :         if (bIsWKT2)
    6111             :         {
    6112           9 :             int iChild = FindProjParm(
    6113             :                 EPSG_NAME_PARAMETER_LONGITUDE_OF_NATURAL_ORIGIN, poPROJCS);
    6114           9 :             if (iChild == -1)
    6115           0 :                 iChild = FindProjParm(
    6116             :                     EPSG_NAME_PARAMETER_LONGITUDE_PROJECTION_CENTRE, poPROJCS);
    6117           9 :             return iChild;
    6118             :         }
    6119          29 :         int iChild = FindProjParm(SRS_PP_LONGITUDE_OF_CENTER, poPROJCS);
    6120          29 :         if (iChild == -1)
    6121           0 :             iChild = FindProjParm(SRS_PP_LONGITUDE_OF_ORIGIN, poPROJCS);
    6122          29 :         return iChild;
    6123             :     }
    6124             : 
    6125         319 :     return -1;
    6126             : }
    6127             : 
    6128             : /************************************************************************/
    6129             : /*                            GetProjParm()                             */
    6130             : /************************************************************************/
    6131             : 
    6132             : /**
    6133             :  * \brief Fetch a projection parameter value.
    6134             :  *
    6135             :  * NOTE: This code should be modified to translate non degree angles into
    6136             :  * degrees based on the GEOGCS unit.  This has not yet been done.
    6137             :  *
    6138             :  * This method is the same as the C function OSRGetProjParm().
    6139             :  *
    6140             :  * @param pszName the name of the parameter to fetch, from the set of
    6141             :  * SRS_PP codes in ogr_srs_api.h.
    6142             :  *
    6143             :  * @param dfDefaultValue the value to return if this parameter doesn't exist.
    6144             :  *
    6145             :  * @param pnErr place to put error code on failure.  Ignored if NULL.
    6146             :  *
    6147             :  * @return value of parameter.
    6148             :  */
    6149             : 
    6150        5055 : double OGRSpatialReference::GetProjParm(const char *pszName,
    6151             :                                         double dfDefaultValue,
    6152             :                                         OGRErr *pnErr) const
    6153             : 
    6154             : {
    6155       10110 :     TAKE_OPTIONAL_LOCK();
    6156             : 
    6157        5055 :     d->refreshProjObj();
    6158        5055 :     GetRoot();  // force update of d->m_bNodesWKT2
    6159             : 
    6160        5055 :     if (pnErr != nullptr)
    6161        4055 :         *pnErr = OGRERR_NONE;
    6162             : 
    6163             :     /* -------------------------------------------------------------------- */
    6164             :     /*      Find the desired parameter.                                     */
    6165             :     /* -------------------------------------------------------------------- */
    6166             :     const OGR_SRSNode *poPROJCS =
    6167        5055 :         GetAttrNode(d->m_bNodesWKT2 ? "CONVERSION" : "PROJCS");
    6168        5055 :     if (poPROJCS == nullptr)
    6169             :     {
    6170         258 :         if (pnErr != nullptr)
    6171         258 :             *pnErr = OGRERR_FAILURE;
    6172         258 :         return dfDefaultValue;
    6173             :     }
    6174             : 
    6175        4797 :     const int iChild = FindProjParm(pszName, poPROJCS);
    6176        4797 :     if (iChild == -1)
    6177             :     {
    6178         316 :         if (IsProjected() && GetAxesCount() == 3)
    6179             :         {
    6180           3 :             OGRSpatialReference *poSRSTmp = Clone();
    6181           3 :             poSRSTmp->DemoteTo2D(nullptr);
    6182             :             const double dfRet =
    6183           3 :                 poSRSTmp->GetProjParm(pszName, dfDefaultValue, pnErr);
    6184           3 :             delete poSRSTmp;
    6185           3 :             return dfRet;
    6186             :         }
    6187             : 
    6188         313 :         if (pnErr != nullptr)
    6189         291 :             *pnErr = OGRERR_FAILURE;
    6190         313 :         return dfDefaultValue;
    6191             :     }
    6192             : 
    6193        4481 :     const OGR_SRSNode *poParameter = poPROJCS->GetChild(iChild);
    6194        4481 :     return CPLAtof(poParameter->GetChild(1)->GetValue());
    6195             : }
    6196             : 
    6197             : /************************************************************************/
    6198             : /*                           OSRGetProjParm()                           */
    6199             : /************************************************************************/
    6200             : 
    6201             : /**
    6202             :  * \brief Fetch a projection parameter value.
    6203             :  *
    6204             :  * This function is the same as OGRSpatialReference::GetProjParm()
    6205             :  */
    6206          90 : double OSRGetProjParm(OGRSpatialReferenceH hSRS, const char *pszName,
    6207             :                       double dfDefaultValue, OGRErr *pnErr)
    6208             : 
    6209             : {
    6210          90 :     VALIDATE_POINTER1(hSRS, "OSRGetProjParm", 0);
    6211             : 
    6212          90 :     return ToPointer(hSRS)->GetProjParm(pszName, dfDefaultValue, pnErr);
    6213             : }
    6214             : 
    6215             : /************************************************************************/
    6216             : /*                          GetNormProjParm()                           */
    6217             : /************************************************************************/
    6218             : 
    6219             : /**
    6220             :  * \brief Fetch a normalized projection parameter value.
    6221             :  *
    6222             :  * This method is the same as GetProjParm() except that the value of
    6223             :  * the parameter is "normalized" into degrees or meters depending on
    6224             :  * whether it is linear or angular.
    6225             :  *
    6226             :  * This method is the same as the C function OSRGetNormProjParm().
    6227             :  *
    6228             :  * @param pszName the name of the parameter to fetch, from the set of
    6229             :  * SRS_PP codes in ogr_srs_api.h.
    6230             :  *
    6231             :  * @param dfDefaultValue the value to return if this parameter doesn't exist.
    6232             :  *
    6233             :  * @param pnErr place to put error code on failure.  Ignored if NULL.
    6234             :  *
    6235             :  * @return value of parameter.
    6236             :  */
    6237             : 
    6238        4030 : double OGRSpatialReference::GetNormProjParm(const char *pszName,
    6239             :                                             double dfDefaultValue,
    6240             :                                             OGRErr *pnErr) const
    6241             : 
    6242             : {
    6243        8060 :     TAKE_OPTIONAL_LOCK();
    6244             : 
    6245        4030 :     GetNormInfo();
    6246             : 
    6247        4030 :     OGRErr nError = OGRERR_NONE;
    6248        4030 :     double dfRawResult = GetProjParm(pszName, dfDefaultValue, &nError);
    6249        4030 :     if (pnErr != nullptr)
    6250           0 :         *pnErr = nError;
    6251             : 
    6252             :     // If we got the default just return it unadjusted.
    6253        4030 :     if (nError != OGRERR_NONE)
    6254         549 :         return dfRawResult;
    6255             : 
    6256        3481 :     if (d->dfToDegrees != 1.0 && IsAngularParameter(pszName))
    6257           8 :         dfRawResult *= d->dfToDegrees;
    6258             : 
    6259        3481 :     if (d->dfToMeter != 1.0 && IsLinearParameter(pszName))
    6260           5 :         return dfRawResult * d->dfToMeter;
    6261             : 
    6262        3476 :     return dfRawResult;
    6263             : }
    6264             : 
    6265             : /************************************************************************/
    6266             : /*                         OSRGetNormProjParm()                         */
    6267             : /************************************************************************/
    6268             : 
    6269             : /**
    6270             :  * \brief This function is the same as OGRSpatialReference::
    6271             :  *
    6272             :  * This function is the same as OGRSpatialReference::GetNormProjParm()
    6273             :  */
    6274           1 : double OSRGetNormProjParm(OGRSpatialReferenceH hSRS, const char *pszName,
    6275             :                           double dfDefaultValue, OGRErr *pnErr)
    6276             : 
    6277             : {
    6278           1 :     VALIDATE_POINTER1(hSRS, "OSRGetNormProjParm", 0);
    6279             : 
    6280           1 :     return ToPointer(hSRS)->GetNormProjParm(pszName, dfDefaultValue, pnErr);
    6281             : }
    6282             : 
    6283             : /************************************************************************/
    6284             : /*                          SetNormProjParm()                           */
    6285             : /************************************************************************/
    6286             : 
    6287             : /**
    6288             :  * \brief Set a projection parameter with a normalized value.
    6289             :  *
    6290             :  * This method is the same as SetProjParm() except that the value of
    6291             :  * the parameter passed in is assumed to be in "normalized" form (decimal
    6292             :  * degrees for angular values, meters for linear values.  The values are
    6293             :  * converted in a form suitable for the GEOGCS and linear units in effect.
    6294             :  *
    6295             :  * This method is the same as the C function OSRSetNormProjParm().
    6296             :  *
    6297             :  * @param pszName the parameter name, which should be selected from
    6298             :  * the macros in ogr_srs_api.h, such as SRS_PP_CENTRAL_MERIDIAN.
    6299             :  *
    6300             :  * @param dfValue value to assign.
    6301             :  *
    6302             :  * @return OGRERR_NONE on success.
    6303             :  */
    6304             : 
    6305          91 : OGRErr OGRSpatialReference::SetNormProjParm(const char *pszName, double dfValue)
    6306             : 
    6307             : {
    6308         182 :     TAKE_OPTIONAL_LOCK();
    6309             : 
    6310          91 :     GetNormInfo();
    6311             : 
    6312          91 :     if (d->dfToDegrees != 0.0 &&
    6313          91 :         (d->dfToDegrees != 1.0 || d->dfFromGreenwich != 0.0) &&
    6314           0 :         IsAngularParameter(pszName))
    6315             :     {
    6316           0 :         dfValue /= d->dfToDegrees;
    6317             :     }
    6318          95 :     else if (d->dfToMeter != 1.0 && d->dfToMeter != 0.0 &&
    6319           4 :              IsLinearParameter(pszName))
    6320           4 :         dfValue /= d->dfToMeter;
    6321             : 
    6322         182 :     return SetProjParm(pszName, dfValue);
    6323             : }
    6324             : 
    6325             : /************************************************************************/
    6326             : /*                         OSRSetNormProjParm()                         */
    6327             : /************************************************************************/
    6328             : 
    6329             : /**
    6330             :  * \brief Set a projection parameter with a normalized value.
    6331             :  *
    6332             :  * This function is the same as OGRSpatialReference::SetNormProjParm()
    6333             :  */
    6334           0 : OGRErr OSRSetNormProjParm(OGRSpatialReferenceH hSRS, const char *pszParamName,
    6335             :                           double dfValue)
    6336             : 
    6337             : {
    6338           0 :     VALIDATE_POINTER1(hSRS, "OSRSetNormProjParm", OGRERR_FAILURE);
    6339             : 
    6340           0 :     return ToPointer(hSRS)->SetNormProjParm(pszParamName, dfValue);
    6341             : }
    6342             : 
    6343             : /************************************************************************/
    6344             : /*                               SetTM()                                */
    6345             : /************************************************************************/
    6346             : 
    6347         443 : OGRErr OGRSpatialReference::SetTM(double dfCenterLat, double dfCenterLong,
    6348             :                                   double dfScale, double dfFalseEasting,
    6349             :                                   double dfFalseNorthing)
    6350             : 
    6351             : {
    6352         886 :     TAKE_OPTIONAL_LOCK();
    6353             : 
    6354         443 :     return d->replaceConversionAndUnref(
    6355             :         proj_create_conversion_transverse_mercator(
    6356             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfScale,
    6357         886 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6358             : }
    6359             : 
    6360             : /************************************************************************/
    6361             : /*                              OSRSetTM()                              */
    6362             : /************************************************************************/
    6363             : 
    6364           1 : OGRErr OSRSetTM(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6365             :                 double dfCenterLong, double dfScale, double dfFalseEasting,
    6366             :                 double dfFalseNorthing)
    6367             : 
    6368             : {
    6369           1 :     VALIDATE_POINTER1(hSRS, "OSRSetTM", OGRERR_FAILURE);
    6370             : 
    6371           1 :     return ToPointer(hSRS)->SetTM(dfCenterLat, dfCenterLong, dfScale,
    6372           1 :                                   dfFalseEasting, dfFalseNorthing);
    6373             : }
    6374             : 
    6375             : /************************************************************************/
    6376             : /*                            SetTMVariant()                            */
    6377             : /************************************************************************/
    6378             : 
    6379           0 : OGRErr OGRSpatialReference::SetTMVariant(const char *pszVariantName,
    6380             :                                          double dfCenterLat,
    6381             :                                          double dfCenterLong, double dfScale,
    6382             :                                          double dfFalseEasting,
    6383             :                                          double dfFalseNorthing)
    6384             : 
    6385             : {
    6386           0 :     TAKE_OPTIONAL_LOCK();
    6387             : 
    6388           0 :     SetProjection(pszVariantName);
    6389           0 :     SetNormProjParm(SRS_PP_LATITUDE_OF_ORIGIN, dfCenterLat);
    6390           0 :     SetNormProjParm(SRS_PP_CENTRAL_MERIDIAN, dfCenterLong);
    6391           0 :     SetNormProjParm(SRS_PP_SCALE_FACTOR, dfScale);
    6392           0 :     SetNormProjParm(SRS_PP_FALSE_EASTING, dfFalseEasting);
    6393           0 :     SetNormProjParm(SRS_PP_FALSE_NORTHING, dfFalseNorthing);
    6394             : 
    6395           0 :     return OGRERR_NONE;
    6396             : }
    6397             : 
    6398             : /************************************************************************/
    6399             : /*                          OSRSetTMVariant()                           */
    6400             : /************************************************************************/
    6401             : 
    6402           0 : OGRErr OSRSetTMVariant(OGRSpatialReferenceH hSRS, const char *pszVariantName,
    6403             :                        double dfCenterLat, double dfCenterLong, double dfScale,
    6404             :                        double dfFalseEasting, double dfFalseNorthing)
    6405             : 
    6406             : {
    6407           0 :     VALIDATE_POINTER1(hSRS, "OSRSetTMVariant", OGRERR_FAILURE);
    6408             : 
    6409           0 :     return ToPointer(hSRS)->SetTMVariant(pszVariantName, dfCenterLat,
    6410             :                                          dfCenterLong, dfScale, dfFalseEasting,
    6411           0 :                                          dfFalseNorthing);
    6412             : }
    6413             : 
    6414             : /************************************************************************/
    6415             : /*                              SetTMSO()                               */
    6416             : /************************************************************************/
    6417             : 
    6418           3 : OGRErr OGRSpatialReference::SetTMSO(double dfCenterLat, double dfCenterLong,
    6419             :                                     double dfScale, double dfFalseEasting,
    6420             :                                     double dfFalseNorthing)
    6421             : 
    6422             : {
    6423           6 :     TAKE_OPTIONAL_LOCK();
    6424             : 
    6425           3 :     auto conv = proj_create_conversion_transverse_mercator_south_oriented(
    6426             :         d->getPROJContext(), dfCenterLat, dfCenterLong, dfScale, dfFalseEasting,
    6427             :         dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6428             : 
    6429           3 :     const char *pszName = nullptr;
    6430           3 :     double dfConvFactor = GetTargetLinearUnits(nullptr, &pszName);
    6431           3 :     CPLString osName = pszName ? pszName : "";
    6432             : 
    6433           3 :     d->refreshProjObj();
    6434             : 
    6435           3 :     d->demoteFromBoundCRS();
    6436             : 
    6437           3 :     auto cs = proj_create_cartesian_2D_cs(
    6438             :         d->getPROJContext(), PJ_CART2D_WESTING_SOUTHING,
    6439           3 :         !osName.empty() ? osName.c_str() : nullptr, dfConvFactor);
    6440             :     auto projCRS =
    6441           3 :         proj_create_projected_crs(d->getPROJContext(), d->getProjCRSName(),
    6442           3 :                                   d->getGeodBaseCRS(), conv, cs);
    6443           3 :     proj_destroy(conv);
    6444           3 :     proj_destroy(cs);
    6445             : 
    6446           3 :     d->setPjCRS(projCRS);
    6447             : 
    6448           3 :     d->undoDemoteFromBoundCRS();
    6449             : 
    6450           6 :     return OGRERR_NONE;
    6451             : }
    6452             : 
    6453             : /************************************************************************/
    6454             : /*                             OSRSetTMSO()                             */
    6455             : /************************************************************************/
    6456             : 
    6457           0 : OGRErr OSRSetTMSO(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6458             :                   double dfCenterLong, double dfScale, double dfFalseEasting,
    6459             :                   double dfFalseNorthing)
    6460             : 
    6461             : {
    6462           0 :     VALIDATE_POINTER1(hSRS, "OSRSetTMSO", OGRERR_FAILURE);
    6463             : 
    6464           0 :     return ToPointer(hSRS)->SetTMSO(dfCenterLat, dfCenterLong, dfScale,
    6465           0 :                                     dfFalseEasting, dfFalseNorthing);
    6466             : }
    6467             : 
    6468             : /************************************************************************/
    6469             : /*                              SetTPED()                               */
    6470             : /************************************************************************/
    6471             : 
    6472           1 : OGRErr OGRSpatialReference::SetTPED(double dfLat1, double dfLong1,
    6473             :                                     double dfLat2, double dfLong2,
    6474             :                                     double dfFalseEasting,
    6475             :                                     double dfFalseNorthing)
    6476             : 
    6477             : {
    6478           2 :     TAKE_OPTIONAL_LOCK();
    6479             : 
    6480           1 :     return d->replaceConversionAndUnref(
    6481             :         proj_create_conversion_two_point_equidistant(
    6482             :             d->getPROJContext(), dfLat1, dfLong1, dfLat2, dfLong2,
    6483           2 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6484             : }
    6485             : 
    6486             : /************************************************************************/
    6487             : /*                             OSRSetTPED()                             */
    6488             : /************************************************************************/
    6489             : 
    6490           0 : OGRErr OSRSetTPED(OGRSpatialReferenceH hSRS, double dfLat1, double dfLong1,
    6491             :                   double dfLat2, double dfLong2, double dfFalseEasting,
    6492             :                   double dfFalseNorthing)
    6493             : 
    6494             : {
    6495           0 :     VALIDATE_POINTER1(hSRS, "OSRSetTPED", OGRERR_FAILURE);
    6496             : 
    6497           0 :     return ToPointer(hSRS)->SetTPED(dfLat1, dfLong1, dfLat2, dfLong2,
    6498           0 :                                     dfFalseEasting, dfFalseNorthing);
    6499             : }
    6500             : 
    6501             : /************************************************************************/
    6502             : /*                               SetTMG()                               */
    6503             : /************************************************************************/
    6504             : 
    6505           0 : OGRErr OGRSpatialReference::SetTMG(double dfCenterLat, double dfCenterLong,
    6506             :                                    double dfFalseEasting,
    6507             :                                    double dfFalseNorthing)
    6508             : 
    6509             : {
    6510           0 :     TAKE_OPTIONAL_LOCK();
    6511             : 
    6512           0 :     return d->replaceConversionAndUnref(
    6513             :         proj_create_conversion_tunisia_mapping_grid(
    6514             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    6515           0 :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6516             : }
    6517             : 
    6518             : /************************************************************************/
    6519             : /*                             OSRSetTMG()                              */
    6520             : /************************************************************************/
    6521             : 
    6522           0 : OGRErr OSRSetTMG(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6523             :                  double dfCenterLong, double dfFalseEasting,
    6524             :                  double dfFalseNorthing)
    6525             : 
    6526             : {
    6527           0 :     VALIDATE_POINTER1(hSRS, "OSRSetTMG", OGRERR_FAILURE);
    6528             : 
    6529           0 :     return ToPointer(hSRS)->SetTMG(dfCenterLat, dfCenterLong, dfFalseEasting,
    6530           0 :                                    dfFalseNorthing);
    6531             : }
    6532             : 
    6533             : /************************************************************************/
    6534             : /*                              SetACEA()                               */
    6535             : /************************************************************************/
    6536             : 
    6537          39 : OGRErr OGRSpatialReference::SetACEA(double dfStdP1, double dfStdP2,
    6538             :                                     double dfCenterLat, double dfCenterLong,
    6539             :                                     double dfFalseEasting,
    6540             :                                     double dfFalseNorthing)
    6541             : 
    6542             : {
    6543          78 :     TAKE_OPTIONAL_LOCK();
    6544             : 
    6545             :     // Note different order of parameters. The one in PROJ is conformant with
    6546             :     // EPSG
    6547          39 :     return d->replaceConversionAndUnref(
    6548             :         proj_create_conversion_albers_equal_area(
    6549             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfStdP1, dfStdP2,
    6550          78 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6551             : }
    6552             : 
    6553             : /************************************************************************/
    6554             : /*                             OSRSetACEA()                             */
    6555             : /************************************************************************/
    6556             : 
    6557           0 : OGRErr OSRSetACEA(OGRSpatialReferenceH hSRS, double dfStdP1, double dfStdP2,
    6558             :                   double dfCenterLat, double dfCenterLong,
    6559             :                   double dfFalseEasting, double dfFalseNorthing)
    6560             : 
    6561             : {
    6562           0 :     VALIDATE_POINTER1(hSRS, "OSRSetACEA", OGRERR_FAILURE);
    6563             : 
    6564           0 :     return ToPointer(hSRS)->SetACEA(dfStdP1, dfStdP2, dfCenterLat, dfCenterLong,
    6565           0 :                                     dfFalseEasting, dfFalseNorthing);
    6566             : }
    6567             : 
    6568             : /************************************************************************/
    6569             : /*                               SetAE()                                */
    6570             : /************************************************************************/
    6571             : 
    6572          21 : OGRErr OGRSpatialReference::SetAE(double dfCenterLat, double dfCenterLong,
    6573             :                                   double dfFalseEasting, double dfFalseNorthing)
    6574             : 
    6575             : {
    6576          42 :     TAKE_OPTIONAL_LOCK();
    6577             : 
    6578          21 :     return d->replaceConversionAndUnref(
    6579             :         proj_create_conversion_azimuthal_equidistant(
    6580             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    6581          42 :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6582             : }
    6583             : 
    6584             : /************************************************************************/
    6585             : /*                              OSRSetAE()                              */
    6586             : /************************************************************************/
    6587             : 
    6588           0 : OGRErr OSRSetAE(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6589             :                 double dfCenterLong, double dfFalseEasting,
    6590             :                 double dfFalseNorthing)
    6591             : 
    6592             : {
    6593           0 :     VALIDATE_POINTER1(hSRS, "OSRSetACEA", OGRERR_FAILURE);
    6594             : 
    6595           0 :     return ToPointer(hSRS)->SetAE(dfCenterLat, dfCenterLong, dfFalseEasting,
    6596           0 :                                   dfFalseNorthing);
    6597             : }
    6598             : 
    6599             : /************************************************************************/
    6600             : /*                              SetBonne()                              */
    6601             : /************************************************************************/
    6602             : 
    6603           1 : OGRErr OGRSpatialReference::SetBonne(double dfStdP1, double dfCentralMeridian,
    6604             :                                      double dfFalseEasting,
    6605             :                                      double dfFalseNorthing)
    6606             : 
    6607             : {
    6608           2 :     TAKE_OPTIONAL_LOCK();
    6609             : 
    6610           1 :     return d->replaceConversionAndUnref(proj_create_conversion_bonne(
    6611             :         d->getPROJContext(), dfStdP1, dfCentralMeridian, dfFalseEasting,
    6612           2 :         dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6613             : }
    6614             : 
    6615             : /************************************************************************/
    6616             : /*                            OSRSetBonne()                             */
    6617             : /************************************************************************/
    6618             : 
    6619           0 : OGRErr OSRSetBonne(OGRSpatialReferenceH hSRS, double dfStdP1,
    6620             :                    double dfCentralMeridian, double dfFalseEasting,
    6621             :                    double dfFalseNorthing)
    6622             : 
    6623             : {
    6624           0 :     VALIDATE_POINTER1(hSRS, "OSRSetBonne", OGRERR_FAILURE);
    6625             : 
    6626           0 :     return ToPointer(hSRS)->SetBonne(dfStdP1, dfCentralMeridian, dfFalseEasting,
    6627           0 :                                      dfFalseNorthing);
    6628             : }
    6629             : 
    6630             : /************************************************************************/
    6631             : /*                               SetCEA()                               */
    6632             : /************************************************************************/
    6633             : 
    6634           4 : OGRErr OGRSpatialReference::SetCEA(double dfStdP1, double dfCentralMeridian,
    6635             :                                    double dfFalseEasting,
    6636             :                                    double dfFalseNorthing)
    6637             : 
    6638             : {
    6639           8 :     TAKE_OPTIONAL_LOCK();
    6640             : 
    6641           4 :     return d->replaceConversionAndUnref(
    6642             :         proj_create_conversion_lambert_cylindrical_equal_area(
    6643             :             d->getPROJContext(), dfStdP1, dfCentralMeridian, dfFalseEasting,
    6644           8 :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6645             : }
    6646             : 
    6647             : /************************************************************************/
    6648             : /*                             OSRSetCEA()                              */
    6649             : /************************************************************************/
    6650             : 
    6651           0 : OGRErr OSRSetCEA(OGRSpatialReferenceH hSRS, double dfStdP1,
    6652             :                  double dfCentralMeridian, double dfFalseEasting,
    6653             :                  double dfFalseNorthing)
    6654             : 
    6655             : {
    6656           0 :     VALIDATE_POINTER1(hSRS, "OSRSetCEA", OGRERR_FAILURE);
    6657             : 
    6658           0 :     return ToPointer(hSRS)->SetCEA(dfStdP1, dfCentralMeridian, dfFalseEasting,
    6659           0 :                                    dfFalseNorthing);
    6660             : }
    6661             : 
    6662             : /************************************************************************/
    6663             : /*                               SetCS()                                */
    6664             : /************************************************************************/
    6665             : 
    6666           5 : OGRErr OGRSpatialReference::SetCS(double dfCenterLat, double dfCenterLong,
    6667             :                                   double dfFalseEasting, double dfFalseNorthing)
    6668             : 
    6669             : {
    6670          10 :     TAKE_OPTIONAL_LOCK();
    6671             : 
    6672           5 :     return d->replaceConversionAndUnref(proj_create_conversion_cassini_soldner(
    6673             :         d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    6674          10 :         dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6675             : }
    6676             : 
    6677             : /************************************************************************/
    6678             : /*                              OSRSetCS()                              */
    6679             : /************************************************************************/
    6680             : 
    6681           0 : OGRErr OSRSetCS(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6682             :                 double dfCenterLong, double dfFalseEasting,
    6683             :                 double dfFalseNorthing)
    6684             : 
    6685             : {
    6686           0 :     VALIDATE_POINTER1(hSRS, "OSRSetCS", OGRERR_FAILURE);
    6687             : 
    6688           0 :     return ToPointer(hSRS)->SetCS(dfCenterLat, dfCenterLong, dfFalseEasting,
    6689           0 :                                   dfFalseNorthing);
    6690             : }
    6691             : 
    6692             : /************************************************************************/
    6693             : /*                               SetEC()                                */
    6694             : /************************************************************************/
    6695             : 
    6696           7 : OGRErr OGRSpatialReference::SetEC(double dfStdP1, double dfStdP2,
    6697             :                                   double dfCenterLat, double dfCenterLong,
    6698             :                                   double dfFalseEasting, double dfFalseNorthing)
    6699             : 
    6700             : {
    6701          14 :     TAKE_OPTIONAL_LOCK();
    6702             : 
    6703             :     // Note: different order of arguments
    6704           7 :     return d->replaceConversionAndUnref(
    6705             :         proj_create_conversion_equidistant_conic(
    6706             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfStdP1, dfStdP2,
    6707          14 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6708             : }
    6709             : 
    6710             : /************************************************************************/
    6711             : /*                              OSRSetEC()                              */
    6712             : /************************************************************************/
    6713             : 
    6714           0 : OGRErr OSRSetEC(OGRSpatialReferenceH hSRS, double dfStdP1, double dfStdP2,
    6715             :                 double dfCenterLat, double dfCenterLong, double dfFalseEasting,
    6716             :                 double dfFalseNorthing)
    6717             : 
    6718             : {
    6719           0 :     VALIDATE_POINTER1(hSRS, "OSRSetEC", OGRERR_FAILURE);
    6720             : 
    6721           0 :     return ToPointer(hSRS)->SetEC(dfStdP1, dfStdP2, dfCenterLat, dfCenterLong,
    6722           0 :                                   dfFalseEasting, dfFalseNorthing);
    6723             : }
    6724             : 
    6725             : /************************************************************************/
    6726             : /*                             SetEckert()                              */
    6727             : /************************************************************************/
    6728             : 
    6729          10 : OGRErr OGRSpatialReference::SetEckert(int nVariation,  // 1-6.
    6730             :                                       double dfCentralMeridian,
    6731             :                                       double dfFalseEasting,
    6732             :                                       double dfFalseNorthing)
    6733             : 
    6734             : {
    6735          20 :     TAKE_OPTIONAL_LOCK();
    6736             : 
    6737             :     PJ *conv;
    6738          10 :     if (nVariation == 1)
    6739             :     {
    6740           1 :         conv = proj_create_conversion_eckert_i(
    6741             :             d->getPROJContext(), dfCentralMeridian, dfFalseEasting,
    6742             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6743             :     }
    6744           9 :     else if (nVariation == 2)
    6745             :     {
    6746           1 :         conv = proj_create_conversion_eckert_ii(
    6747             :             d->getPROJContext(), dfCentralMeridian, dfFalseEasting,
    6748             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6749             :     }
    6750           8 :     else if (nVariation == 3)
    6751             :     {
    6752           1 :         conv = proj_create_conversion_eckert_iii(
    6753             :             d->getPROJContext(), dfCentralMeridian, dfFalseEasting,
    6754             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6755             :     }
    6756           7 :     else if (nVariation == 4)
    6757             :     {
    6758           3 :         conv = proj_create_conversion_eckert_iv(
    6759             :             d->getPROJContext(), dfCentralMeridian, dfFalseEasting,
    6760             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6761             :     }
    6762           4 :     else if (nVariation == 5)
    6763             :     {
    6764           1 :         conv = proj_create_conversion_eckert_v(
    6765             :             d->getPROJContext(), dfCentralMeridian, dfFalseEasting,
    6766             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6767             :     }
    6768           3 :     else if (nVariation == 6)
    6769             :     {
    6770           3 :         conv = proj_create_conversion_eckert_vi(
    6771             :             d->getPROJContext(), dfCentralMeridian, dfFalseEasting,
    6772             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6773             :     }
    6774             :     else
    6775             :     {
    6776           0 :         CPLError(CE_Failure, CPLE_AppDefined,
    6777             :                  "Unsupported Eckert variation (%d).", nVariation);
    6778           0 :         return OGRERR_UNSUPPORTED_SRS;
    6779             :     }
    6780             : 
    6781          10 :     return d->replaceConversionAndUnref(conv);
    6782             : }
    6783             : 
    6784             : /************************************************************************/
    6785             : /*                            OSRSetEckert()                            */
    6786             : /************************************************************************/
    6787             : 
    6788           0 : OGRErr OSRSetEckert(OGRSpatialReferenceH hSRS, int nVariation,
    6789             :                     double dfCentralMeridian, double dfFalseEasting,
    6790             :                     double dfFalseNorthing)
    6791             : 
    6792             : {
    6793           0 :     VALIDATE_POINTER1(hSRS, "OSRSetEckert", OGRERR_FAILURE);
    6794             : 
    6795           0 :     return ToPointer(hSRS)->SetEckert(nVariation, dfCentralMeridian,
    6796           0 :                                       dfFalseEasting, dfFalseNorthing);
    6797             : }
    6798             : 
    6799             : /************************************************************************/
    6800             : /*                            SetEckertIV()                             */
    6801             : /*                                                                      */
    6802             : /*      Deprecated                                                      */
    6803             : /************************************************************************/
    6804             : 
    6805           2 : OGRErr OGRSpatialReference::SetEckertIV(double dfCentralMeridian,
    6806             :                                         double dfFalseEasting,
    6807             :                                         double dfFalseNorthing)
    6808             : 
    6809             : {
    6810           2 :     return SetEckert(4, dfCentralMeridian, dfFalseEasting, dfFalseNorthing);
    6811             : }
    6812             : 
    6813             : /************************************************************************/
    6814             : /*                           OSRSetEckertIV()                           */
    6815             : /************************************************************************/
    6816             : 
    6817           0 : OGRErr OSRSetEckertIV(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    6818             :                       double dfFalseEasting, double dfFalseNorthing)
    6819             : 
    6820             : {
    6821           0 :     VALIDATE_POINTER1(hSRS, "OSRSetEckertIV", OGRERR_FAILURE);
    6822             : 
    6823           0 :     return ToPointer(hSRS)->SetEckertIV(dfCentralMeridian, dfFalseEasting,
    6824           0 :                                         dfFalseNorthing);
    6825             : }
    6826             : 
    6827             : /************************************************************************/
    6828             : /*                            SetEckertVI()                             */
    6829             : /*                                                                      */
    6830             : /*      Deprecated                                                      */
    6831             : /************************************************************************/
    6832             : 
    6833           2 : OGRErr OGRSpatialReference::SetEckertVI(double dfCentralMeridian,
    6834             :                                         double dfFalseEasting,
    6835             :                                         double dfFalseNorthing)
    6836             : 
    6837             : {
    6838           2 :     return SetEckert(6, dfCentralMeridian, dfFalseEasting, dfFalseNorthing);
    6839             : }
    6840             : 
    6841             : /************************************************************************/
    6842             : /*                           OSRSetEckertVI()                           */
    6843             : /************************************************************************/
    6844             : 
    6845           0 : OGRErr OSRSetEckertVI(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    6846             :                       double dfFalseEasting, double dfFalseNorthing)
    6847             : 
    6848             : {
    6849           0 :     VALIDATE_POINTER1(hSRS, "OSRSetEckertVI", OGRERR_FAILURE);
    6850             : 
    6851           0 :     return ToPointer(hSRS)->SetEckertVI(dfCentralMeridian, dfFalseEasting,
    6852           0 :                                         dfFalseNorthing);
    6853             : }
    6854             : 
    6855             : /************************************************************************/
    6856             : /*                         SetEquirectangular()                         */
    6857             : /************************************************************************/
    6858             : 
    6859           2 : OGRErr OGRSpatialReference::SetEquirectangular(double dfCenterLat,
    6860             :                                                double dfCenterLong,
    6861             :                                                double dfFalseEasting,
    6862             :                                                double dfFalseNorthing)
    6863             : 
    6864             : {
    6865           4 :     TAKE_OPTIONAL_LOCK();
    6866             : 
    6867           2 :     if (dfCenterLat == 0.0)
    6868             :     {
    6869           0 :         return d->replaceConversionAndUnref(
    6870             :             proj_create_conversion_equidistant_cylindrical(
    6871             :                 d->getPROJContext(), 0.0, dfCenterLong, dfFalseEasting,
    6872           0 :                 dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6873             :     }
    6874             : 
    6875             :     // Non-standard extension with non-zero latitude of origin
    6876           2 :     SetProjection(SRS_PT_EQUIRECTANGULAR);
    6877           2 :     SetNormProjParm(SRS_PP_LATITUDE_OF_ORIGIN, dfCenterLat);
    6878           2 :     SetNormProjParm(SRS_PP_CENTRAL_MERIDIAN, dfCenterLong);
    6879           2 :     SetNormProjParm(SRS_PP_FALSE_EASTING, dfFalseEasting);
    6880           2 :     SetNormProjParm(SRS_PP_FALSE_NORTHING, dfFalseNorthing);
    6881             : 
    6882           2 :     return OGRERR_NONE;
    6883             : }
    6884             : 
    6885             : /************************************************************************/
    6886             : /*                       OSRSetEquirectangular()                        */
    6887             : /************************************************************************/
    6888             : 
    6889           0 : OGRErr OSRSetEquirectangular(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6890             :                              double dfCenterLong, double dfFalseEasting,
    6891             :                              double dfFalseNorthing)
    6892             : 
    6893             : {
    6894           0 :     VALIDATE_POINTER1(hSRS, "OSRSetEquirectangular", OGRERR_FAILURE);
    6895             : 
    6896           0 :     return ToPointer(hSRS)->SetEquirectangular(dfCenterLat, dfCenterLong,
    6897           0 :                                                dfFalseEasting, dfFalseNorthing);
    6898             : }
    6899             : 
    6900             : /************************************************************************/
    6901             : /*                         SetEquirectangular2()                        */
    6902             : /* Generalized form                                                     */
    6903             : /************************************************************************/
    6904             : 
    6905         179 : OGRErr OGRSpatialReference::SetEquirectangular2(double dfCenterLat,
    6906             :                                                 double dfCenterLong,
    6907             :                                                 double dfStdParallel1,
    6908             :                                                 double dfFalseEasting,
    6909             :                                                 double dfFalseNorthing)
    6910             : 
    6911             : {
    6912         358 :     TAKE_OPTIONAL_LOCK();
    6913             : 
    6914         179 :     if (dfCenterLat == 0.0)
    6915             :     {
    6916         174 :         return d->replaceConversionAndUnref(
    6917             :             proj_create_conversion_equidistant_cylindrical(
    6918             :                 d->getPROJContext(), dfStdParallel1, dfCenterLong,
    6919         174 :                 dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6920             :     }
    6921             : 
    6922             :     // Non-standard extension with non-zero latitude of origin
    6923           5 :     SetProjection(SRS_PT_EQUIRECTANGULAR);
    6924           5 :     SetNormProjParm(SRS_PP_LATITUDE_OF_ORIGIN, dfCenterLat);
    6925           5 :     SetNormProjParm(SRS_PP_CENTRAL_MERIDIAN, dfCenterLong);
    6926           5 :     SetNormProjParm(SRS_PP_STANDARD_PARALLEL_1, dfStdParallel1);
    6927           5 :     SetNormProjParm(SRS_PP_FALSE_EASTING, dfFalseEasting);
    6928           5 :     SetNormProjParm(SRS_PP_FALSE_NORTHING, dfFalseNorthing);
    6929             : 
    6930           5 :     return OGRERR_NONE;
    6931             : }
    6932             : 
    6933             : /************************************************************************/
    6934             : /*                       OSRSetEquirectangular2()                       */
    6935             : /************************************************************************/
    6936             : 
    6937           3 : OGRErr OSRSetEquirectangular2(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6938             :                               double dfCenterLong, double dfStdParallel1,
    6939             :                               double dfFalseEasting, double dfFalseNorthing)
    6940             : 
    6941             : {
    6942           3 :     VALIDATE_POINTER1(hSRS, "OSRSetEquirectangular2", OGRERR_FAILURE);
    6943             : 
    6944           3 :     return ToPointer(hSRS)->SetEquirectangular2(dfCenterLat, dfCenterLong,
    6945             :                                                 dfStdParallel1, dfFalseEasting,
    6946           3 :                                                 dfFalseNorthing);
    6947             : }
    6948             : 
    6949             : /************************************************************************/
    6950             : /*                               SetGS()                                */
    6951             : /************************************************************************/
    6952             : 
    6953           5 : OGRErr OGRSpatialReference::SetGS(double dfCentralMeridian,
    6954             :                                   double dfFalseEasting, double dfFalseNorthing)
    6955             : 
    6956             : {
    6957           5 :     return d->replaceConversionAndUnref(proj_create_conversion_gall(
    6958             :         d->getPROJContext(), dfCentralMeridian, dfFalseEasting, dfFalseNorthing,
    6959           5 :         nullptr, 0.0, nullptr, 0.0));
    6960             : }
    6961             : 
    6962             : /************************************************************************/
    6963             : /*                              OSRSetGS()                              */
    6964             : /************************************************************************/
    6965             : 
    6966           2 : OGRErr OSRSetGS(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    6967             :                 double dfFalseEasting, double dfFalseNorthing)
    6968             : 
    6969             : {
    6970           2 :     VALIDATE_POINTER1(hSRS, "OSRSetGS", OGRERR_FAILURE);
    6971             : 
    6972           2 :     return ToPointer(hSRS)->SetGS(dfCentralMeridian, dfFalseEasting,
    6973           2 :                                   dfFalseNorthing);
    6974             : }
    6975             : 
    6976             : /************************************************************************/
    6977             : /*                               SetGH()                                */
    6978             : /************************************************************************/
    6979             : 
    6980           0 : OGRErr OGRSpatialReference::SetGH(double dfCentralMeridian,
    6981             :                                   double dfFalseEasting, double dfFalseNorthing)
    6982             : 
    6983             : {
    6984           0 :     TAKE_OPTIONAL_LOCK();
    6985             : 
    6986           0 :     return d->replaceConversionAndUnref(proj_create_conversion_goode_homolosine(
    6987             :         d->getPROJContext(), dfCentralMeridian, dfFalseEasting, dfFalseNorthing,
    6988           0 :         nullptr, 0.0, nullptr, 0.0));
    6989             : }
    6990             : 
    6991             : /************************************************************************/
    6992             : /*                              OSRSetGH()                              */
    6993             : /************************************************************************/
    6994             : 
    6995           0 : OGRErr OSRSetGH(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    6996             :                 double dfFalseEasting, double dfFalseNorthing)
    6997             : 
    6998             : {
    6999           0 :     VALIDATE_POINTER1(hSRS, "OSRSetGH", OGRERR_FAILURE);
    7000             : 
    7001           0 :     return ToPointer(hSRS)->SetGH(dfCentralMeridian, dfFalseEasting,
    7002           0 :                                   dfFalseNorthing);
    7003             : }
    7004             : 
    7005             : /************************************************************************/
    7006             : /*                               SetIGH()                               */
    7007             : /************************************************************************/
    7008             : 
    7009           0 : OGRErr OGRSpatialReference::SetIGH()
    7010             : 
    7011             : {
    7012           0 :     TAKE_OPTIONAL_LOCK();
    7013             : 
    7014           0 :     return d->replaceConversionAndUnref(
    7015             :         proj_create_conversion_interrupted_goode_homolosine(
    7016           0 :             d->getPROJContext(), 0.0, 0.0, 0.0, nullptr, 0.0, nullptr, 0.0));
    7017             : }
    7018             : 
    7019             : /************************************************************************/
    7020             : /*                             OSRSetIGH()                              */
    7021             : /************************************************************************/
    7022             : 
    7023           0 : OGRErr OSRSetIGH(OGRSpatialReferenceH hSRS)
    7024             : 
    7025             : {
    7026           0 :     VALIDATE_POINTER1(hSRS, "OSRSetIGH", OGRERR_FAILURE);
    7027             : 
    7028           0 :     return ToPointer(hSRS)->SetIGH();
    7029             : }
    7030             : 
    7031             : /************************************************************************/
    7032             : /*                              SetGEOS()                               */
    7033             : /************************************************************************/
    7034             : 
    7035           3 : OGRErr OGRSpatialReference::SetGEOS(double dfCentralMeridian,
    7036             :                                     double dfSatelliteHeight,
    7037             :                                     double dfFalseEasting,
    7038             :                                     double dfFalseNorthing)
    7039             : 
    7040             : {
    7041           6 :     TAKE_OPTIONAL_LOCK();
    7042             : 
    7043           3 :     return d->replaceConversionAndUnref(
    7044             :         proj_create_conversion_geostationary_satellite_sweep_y(
    7045             :             d->getPROJContext(), dfCentralMeridian, dfSatelliteHeight,
    7046           6 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    7047             : }
    7048             : 
    7049             : /************************************************************************/
    7050             : /*                             OSRSetGEOS()                             */
    7051             : /************************************************************************/
    7052             : 
    7053           0 : OGRErr OSRSetGEOS(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    7054             :                   double dfSatelliteHeight, double dfFalseEasting,
    7055             :                   double dfFalseNorthing)
    7056             : 
    7057             : {
    7058           0 :     VALIDATE_POINTER1(hSRS, "OSRSetGEOS", OGRERR_FAILURE);
    7059             : 
    7060           0 :     return ToPointer(hSRS)->SetGEOS(dfCentralMeridian, dfSatelliteHeight,
    7061           0 :                                     dfFalseEasting, dfFalseNorthing);
    7062             : }
    7063             : 
    7064             : /************************************************************************/
    7065             : /*                     SetGaussSchreiberTMercator()                     */
    7066             : /************************************************************************/
    7067             : 
    7068           0 : OGRErr OGRSpatialReference::SetGaussSchreiberTMercator(double dfCenterLat,
    7069             :                                                        double dfCenterLong,
    7070             :                                                        double dfScale,
    7071             :                                                        double dfFalseEasting,
    7072             :                                                        double dfFalseNorthing)
    7073             : 
    7074             : {
    7075           0 :     TAKE_OPTIONAL_LOCK();
    7076             : 
    7077           0 :     return d->replaceConversionAndUnref(
    7078             :         proj_create_conversion_gauss_schreiber_transverse_mercator(
    7079             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfScale,
    7080           0 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    7081             : }
    7082             : 
    7083             : /************************************************************************/
    7084             : /*                   OSRSetGaussSchreiberTMercator()                    */
    7085             : /************************************************************************/
    7086             : 
    7087           0 : OGRErr OSRSetGaussSchreiberTMercator(OGRSpatialReferenceH hSRS,
    7088             :                                      double dfCenterLat, double dfCenterLong,
    7089             :                                      double dfScale, double dfFalseEasting,
    7090             :                                      double dfFalseNorthing)
    7091             : 
    7092             : {
    7093           0 :     VALIDATE_POINTER1(hSRS, "OSRSetGaussSchreiberTMercator", OGRERR_FAILURE);
    7094             : 
    7095           0 :     return ToPointer(hSRS)->SetGaussSchreiberTMercator(
    7096           0 :         dfCenterLat, dfCenterLong, dfScale, dfFalseEasting, dfFalseNorthing);
    7097             : }
    7098             : 
    7099             : /************************************************************************/
    7100             : /*                            SetGnomonic()                             */
    7101             : /************************************************************************/
    7102             : 
    7103           2 : OGRErr OGRSpatialReference::SetGnomonic(double dfCenterLat, double dfCenterLong,
    7104             :                                         double dfFalseEasting,
    7105             :                                         double dfFalseNorthing)
    7106             : 
    7107             : {
    7108           4 :     TAKE_OPTIONAL_LOCK();
    7109             : 
    7110           2 :     return d->replaceConversionAndUnref(proj_create_conversion_gnomonic(
    7111             :         d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    7112           4 :         dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    7113             : }
    7114             : 
    7115             : /************************************************************************/
    7116             : /*                           OSRSetGnomonic()                           */
    7117             : /************************************************************************/
    7118             : 
    7119           0 : OGRErr OSRSetGnomonic(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7120             :                       double dfCenterLong, double dfFalseEasting,
    7121             :                       double dfFalseNorthing)
    7122             : 
    7123             : {
    7124           0 :     VALIDATE_POINTER1(hSRS, "OSRSetGnomonic", OGRERR_FAILURE);
    7125             : 
    7126           0 :     return ToPointer(hSRS)->SetGnomonic(dfCenterLat, dfCenterLong,
    7127           0 :                                         dfFalseEasting, dfFalseNorthing);
    7128             : }
    7129             : 
    7130             : /************************************************************************/
    7131             : /*                              SetHOMAC()                              */
    7132             : /************************************************************************/
    7133             : 
    7134             : /**
    7135             :  * \brief Set an Hotine Oblique Mercator Azimuth Center projection using
    7136             :  * azimuth angle.
    7137             :  *
    7138             :  * This projection corresponds to EPSG projection method 9815, also
    7139             :  * sometimes known as hotine oblique mercator (variant B).
    7140             :  *
    7141             :  * This method does the same thing as the C function OSRSetHOMAC().
    7142             :  *
    7143             :  * @param dfCenterLat Latitude of the projection origin.
    7144             :  * @param dfCenterLong Longitude of the projection origin.
    7145             :  * @param dfAzimuth Azimuth, measured clockwise from North, of the projection
    7146             :  * centerline.
    7147             :  * @param dfRectToSkew Angle from Rectified to Skew Grid
    7148             :  * @param dfScale Scale factor applies to the projection origin.
    7149             :  * @param dfFalseEasting False easting.
    7150             :  * @param dfFalseNorthing False northing.
    7151             :  *
    7152             :  * @return OGRERR_NONE on success.
    7153             :  */
    7154             : 
    7155           4 : OGRErr OGRSpatialReference::SetHOMAC(double dfCenterLat, double dfCenterLong,
    7156             :                                      double dfAzimuth, double dfRectToSkew,
    7157             :                                      double dfScale, double dfFalseEasting,
    7158             :                                      double dfFalseNorthing)
    7159             : 
    7160             : {
    7161           8 :     TAKE_OPTIONAL_LOCK();
    7162             : 
    7163           4 :     return d->replaceConversionAndUnref(
    7164             :         proj_create_conversion_hotine_oblique_mercator_variant_b(
    7165             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfAzimuth,
    7166             :             dfRectToSkew, dfScale, dfFalseEasting, dfFalseNorthing, nullptr,
    7167           8 :             0.0, nullptr, 0.0));
    7168             : }
    7169             : 
    7170             : /************************************************************************/
    7171             : /*                            OSRSetHOMAC()                             */
    7172             : /************************************************************************/
    7173             : 
    7174             : /**
    7175             :  * \brief Set an Oblique Mercator projection using azimuth angle.
    7176             :  *
    7177             :  * This is the same as the C++ method OGRSpatialReference::SetHOMAC()
    7178             :  */
    7179           0 : OGRErr OSRSetHOMAC(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7180             :                    double dfCenterLong, double dfAzimuth, double dfRectToSkew,
    7181             :                    double dfScale, double dfFalseEasting,
    7182             :                    double dfFalseNorthing)
    7183             : 
    7184             : {
    7185           0 :     VALIDATE_POINTER1(hSRS, "OSRSetHOMAC", OGRERR_FAILURE);
    7186             : 
    7187           0 :     return ToPointer(hSRS)->SetHOMAC(dfCenterLat, dfCenterLong, dfAzimuth,
    7188             :                                      dfRectToSkew, dfScale, dfFalseEasting,
    7189           0 :                                      dfFalseNorthing);
    7190             : }
    7191             : 
    7192             : /************************************************************************/
    7193             : /*                               SetHOM()                               */
    7194             : /************************************************************************/
    7195             : 
    7196             : /**
    7197             :  * \brief Set a Hotine Oblique Mercator projection using azimuth angle.
    7198             :  *
    7199             :  * This projection corresponds to EPSG projection method 9812, also
    7200             :  * sometimes known as hotine oblique mercator (variant A)..
    7201             :  *
    7202             :  * This method does the same thing as the C function OSRSetHOM().
    7203             :  *
    7204             :  * @param dfCenterLat Latitude of the projection origin.
    7205             :  * @param dfCenterLong Longitude of the projection origin.
    7206             :  * @param dfAzimuth Azimuth, measured clockwise from North, of the projection
    7207             :  * centerline.
    7208             :  * @param dfRectToSkew Angle from Rectified to Skew Grid
    7209             :  * @param dfScale Scale factor applies to the projection origin.
    7210             :  * @param dfFalseEasting False easting.
    7211             :  * @param dfFalseNorthing False northing.
    7212             :  *
    7213             :  * @return OGRERR_NONE on success.
    7214             :  */
    7215             : 
    7216          13 : OGRErr OGRSpatialReference::SetHOM(double dfCenterLat, double dfCenterLong,
    7217             :                                    double dfAzimuth, double dfRectToSkew,
    7218             :                                    double dfScale, double dfFalseEasting,
    7219             :                                    double dfFalseNorthing)
    7220             : 
    7221             : {
    7222          26 :     TAKE_OPTIONAL_LOCK();
    7223             : 
    7224          13 :     return d->replaceConversionAndUnref(
    7225             :         proj_create_conversion_hotine_oblique_mercator_variant_a(
    7226             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfAzimuth,
    7227             :             dfRectToSkew, dfScale, dfFalseEasting, dfFalseNorthing, nullptr,
    7228          26 :             0.0, nullptr, 0.0));
    7229             : }
    7230             : 
    7231             : /************************************************************************/
    7232             : /*                             OSRSetHOM()                              */
    7233             : /************************************************************************/
    7234             : /**
    7235             :  * \brief Set a Hotine Oblique Mercator projection using azimuth angle.
    7236             :  *
    7237             :  * This is the same as the C++ method OGRSpatialReference::SetHOM()
    7238             :  */
    7239           0 : OGRErr OSRSetHOM(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7240             :                  double dfCenterLong, double dfAzimuth, double dfRectToSkew,
    7241             :                  double dfScale, double dfFalseEasting, double dfFalseNorthing)
    7242             : 
    7243             : {
    7244           0 :     VALIDATE_POINTER1(hSRS, "OSRSetHOM", OGRERR_FAILURE);
    7245             : 
    7246           0 :     return ToPointer(hSRS)->SetHOM(dfCenterLat, dfCenterLong, dfAzimuth,
    7247             :                                    dfRectToSkew, dfScale, dfFalseEasting,
    7248           0 :                                    dfFalseNorthing);
    7249             : }
    7250             : 
    7251             : /************************************************************************/
    7252             : /*                             SetHOM2PNO()                             */
    7253             : /************************************************************************/
    7254             : 
    7255             : /**
    7256             :  * \brief Set a Hotine Oblique Mercator projection using two points on
    7257             :  * projection centerline.
    7258             :  *
    7259             :  * This method does the same thing as the C function OSRSetHOM2PNO().
    7260             :  *
    7261             :  * @param dfCenterLat Latitude of the projection origin.
    7262             :  * @param dfLat1 Latitude of the first point on center line.
    7263             :  * @param dfLong1 Longitude of the first point on center line.
    7264             :  * @param dfLat2 Latitude of the second point on center line.
    7265             :  * @param dfLong2 Longitude of the second point on center line.
    7266             :  * @param dfScale Scale factor applies to the projection origin.
    7267             :  * @param dfFalseEasting False easting.
    7268             :  * @param dfFalseNorthing False northing.
    7269             :  *
    7270             :  * @return OGRERR_NONE on success.
    7271             :  */
    7272             : 
    7273           3 : OGRErr OGRSpatialReference::SetHOM2PNO(double dfCenterLat, double dfLat1,
    7274             :                                        double dfLong1, double dfLat2,
    7275             :                                        double dfLong2, double dfScale,
    7276             :                                        double dfFalseEasting,
    7277             :                                        double dfFalseNorthing)
    7278             : 
    7279             : {
    7280           6 :     TAKE_OPTIONAL_LOCK();
    7281             : 
    7282           3 :     return d->replaceConversionAndUnref(
    7283             :         proj_create_conversion_hotine_oblique_mercator_two_point_natural_origin(
    7284             :             d->getPROJContext(), dfCenterLat, dfLat1, dfLong1, dfLat2, dfLong2,
    7285             :             dfScale, dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr,
    7286           6 :             0.0));
    7287             : }
    7288             : 
    7289             : /************************************************************************/
    7290             : /*                           OSRSetHOM2PNO()                            */
    7291             : /************************************************************************/
    7292             : /**
    7293             :  * \brief Set a Hotine Oblique Mercator projection using two points on
    7294             :  *  projection centerline.
    7295             :  *
    7296             :  * This is the same as the C++ method OGRSpatialReference::SetHOM2PNO()
    7297             :  */
    7298           0 : OGRErr OSRSetHOM2PNO(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7299             :                      double dfLat1, double dfLong1, double dfLat2,
    7300             :                      double dfLong2, double dfScale, double dfFalseEasting,
    7301             :                      double dfFalseNorthing)
    7302             : 
    7303             : {
    7304           0 :     VALIDATE_POINTER1(hSRS, "OSRSetHOM2PNO", OGRERR_FAILURE);
    7305             : 
    7306           0 :     return ToPointer(hSRS)->SetHOM2PNO(dfCenterLat, dfLat1, dfLong1, dfLat2,
    7307             :                                        dfLong2, dfScale, dfFalseEasting,
    7308           0 :                                        dfFalseNorthing);
    7309             : }
    7310             : 
    7311             : /************************************************************************/
    7312             : /*                               SetLOM()                               */
    7313             : /************************************************************************/
    7314             : 
    7315             : /**
    7316             :  * \brief Set a Laborde Oblique Mercator projection.
    7317             :  *
    7318             :  * @param dfCenterLat Latitude of the projection origin.
    7319             :  * @param dfCenterLong Longitude of the projection origin.
    7320             :  * @param dfAzimuth Azimuth, measured clockwise from North, of the projection
    7321             :  * centerline.
    7322             :  * @param dfScale Scale factor on the initial line
    7323             :  * @param dfFalseEasting False easting.
    7324             :  * @param dfFalseNorthing False northing.
    7325             :  *
    7326             :  * @return OGRERR_NONE on success.
    7327             :  */
    7328             : 
    7329           0 : OGRErr OGRSpatialReference::SetLOM(double dfCenterLat, double dfCenterLong,
    7330             :                                    double dfAzimuth, double dfScale,
    7331             :                                    double dfFalseEasting,
    7332             :                                    double dfFalseNorthing)
    7333             : 
    7334             : {
    7335           0 :     TAKE_OPTIONAL_LOCK();
    7336             : 
    7337           0 :     return d->replaceConversionAndUnref(
    7338             :         proj_create_conversion_laborde_oblique_mercator(
    7339             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfAzimuth, dfScale,
    7340           0 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    7341             : }
    7342             : 
    7343             : /************************************************************************/
    7344             : /*                          SetIWMPolyconic()                           */
    7345             : /************************************************************************/
    7346             : 
    7347           0 : OGRErr OGRSpatialReference::SetIWMPolyconic(double dfLat1, double dfLat2,
    7348             :                                             double dfCenterLong,
    7349             :                                             double dfFalseEasting,
    7350             :                                             double dfFalseNorthing)
    7351             : 
    7352             : {
    7353           0 :     TAKE_OPTIONAL_LOCK();
    7354             : 
    7355           0 :     return d->replaceConversionAndUnref(
    7356             :         proj_create_conversion_international_map_world_polyconic(
    7357             :             d->getPROJContext(), dfCenterLong, dfLat1, dfLat2, dfFalseEasting,
    7358           0 :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    7359             : }
    7360             : 
    7361             : /************************************************************************/
    7362             : /*                         OSRSetIWMPolyconic()                         */
    7363             : /************************************************************************/
    7364             : 
    7365           0 : OGRErr OSRSetIWMPolyconic(OGRSpatialReferenceH hSRS, double dfLat1,
    7366             :                           double dfLat2, double dfCenterLong,
    7367             :                           double dfFalseEasting, double dfFalseNorthing)
    7368             : 
    7369             : {
    7370           0 :     VALIDATE_POINTER1(hSRS, "OSRSetIWMPolyconic", OGRERR_FAILURE);
    7371             : 
    7372           0 :     return ToPointer(hSRS)->SetIWMPolyconic(dfLat1, dfLat2, dfCenterLong,
    7373           0 :                                             dfFalseEasting, dfFalseNorthing);
    7374             : }
    7375             : 
    7376             : /************************************************************************/
    7377             : /*                             SetKrovak()                              */
    7378             : /************************************************************************/
    7379             : 
    7380             : /** Krovak east-north projection.
    7381             :  *
    7382             :  * Note that dfAzimuth and dfPseudoStdParallel1 are ignored when exporting
    7383             :  * to PROJ and should be respectively set to 30.28813972222222 and 78.5
    7384             :  */
    7385           3 : OGRErr OGRSpatialReference::SetKrovak(double dfCenterLat, double dfCenterLong,
    7386             :                                       double dfAzimuth,
    7387             :                                       double dfPseudoStdParallel1,
    7388             :                                       double dfScale, double dfFalseEasting,
    7389             :                                       double dfFalseNorthing)
    7390             : 
    7391             : {
    7392           6 :     TAKE_OPTIONAL_LOCK();
    7393             : 
    7394           3 :     return d->replaceConversionAndUnref(
    7395             :         proj_create_conversion_krovak_north_oriented(
    7396             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfAzimuth,
    7397             :             dfPseudoStdParallel1, dfScale, dfFalseEasting, dfFalseNorthing,
    7398           6 :             nullptr, 0.0, nullptr, 0.0));
    7399             : }
    7400             : 
    7401             : /************************************************************************/
    7402             : /*                            OSRSetKrovak()                            */
    7403             : /************************************************************************/
    7404             : 
    7405           0 : OGRErr OSRSetKrovak(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7406             :                     double dfCenterLong, double dfAzimuth,
    7407             :                     double dfPseudoStdParallel1, double dfScale,
    7408             :                     double dfFalseEasting, double dfFalseNorthing)
    7409             : 
    7410             : {
    7411           0 :     VALIDATE_POINTER1(hSRS, "OSRSetKrovak", OGRERR_FAILURE);
    7412             : 
    7413           0 :     return ToPointer(hSRS)->SetKrovak(dfCenterLat, dfCenterLong, dfAzimuth,
    7414             :                                       dfPseudoStdParallel1, dfScale,
    7415           0 :                                       dfFalseEasting, dfFalseNorthing);
    7416             : }
    7417             : 
    7418             : /************************************************************************/
    7419             : /*                              SetLAEA()                               */
    7420             : /************************************************************************/
    7421             : 
    7422          17 : OGRErr OGRSpatialReference::SetLAEA(double dfCenterLat, double dfCenterLong,
    7423             :                                     double dfFalseEasting,
    7424             :                                     double dfFalseNorthing)
    7425             : 
    7426             : {
    7427          34 :     TAKE_OPTIONAL_LOCK();
    7428             : 
    7429          17 :     auto conv = proj_create_conversion_lambert_azimuthal_equal_area(
    7430             :         d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    7431             :         dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    7432             : 
    7433          17 :     const char *pszName = nullptr;
    7434          17 :     double dfConvFactor = GetTargetLinearUnits(nullptr, &pszName);
    7435          17 :     CPLString osName = pszName ? pszName : "";
    7436             : 
    7437          17 :     d->refreshProjObj();
    7438             : 
    7439          17 :     d->demoteFromBoundCRS();
    7440             : 
    7441          17 :     auto cs = proj_create_cartesian_2D_cs(
    7442             :         d->getPROJContext(),
    7443          17 :         std::fabs(dfCenterLat - 90) < 1e-10 && dfCenterLong == 0
    7444             :             ? PJ_CART2D_NORTH_POLE_EASTING_SOUTH_NORTHING_SOUTH
    7445           0 :         : std::fabs(dfCenterLat - -90) < 1e-10 && dfCenterLong == 0
    7446          14 :             ? PJ_CART2D_SOUTH_POLE_EASTING_NORTH_NORTHING_NORTH
    7447             :             : PJ_CART2D_EASTING_NORTHING,
    7448          17 :         !osName.empty() ? osName.c_str() : nullptr, dfConvFactor);
    7449             :     auto projCRS =
    7450          17 :         proj_create_projected_crs(d->getPROJContext(), d->getProjCRSName(),
    7451          17 :                                   d->getGeodBaseCRS(), conv, cs);
    7452          17 :     proj_destroy(conv);
    7453          17 :     proj_destroy(cs);
    7454             : 
    7455          17 :     d->setPjCRS(projCRS);
    7456             : 
    7457          17 :     d->undoDemoteFromBoundCRS();
    7458             : 
    7459          34 :     return OGRERR_NONE;
    7460             : }
    7461             : 
    7462             : /************************************************************************/
    7463             : /*                             OSRSetLAEA()                             */
    7464             : /************************************************************************/
    7465             : 
    7466           0 : OGRErr OSRSetLAEA(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7467             :                   double dfCenterLong, double dfFalseEasting,
    7468             :                   double dfFalseNorthing)
    7469             : 
    7470             : {
    7471           0 :     VALIDATE_POINTER1(hSRS, "OSRSetLAEA", OGRERR_FAILURE);
    7472             : 
    7473           0 :     return ToPointer(hSRS)->SetLAEA(dfCenterLat, dfCenterLong, dfFalseEasting,
    7474           0 :                                     dfFalseNorthing);
    7475             : }
    7476             : 
    7477             : /************************************************************************/
    7478             : /*                               SetLCC()                               */
    7479             : /************************************************************************/
    7480             : 
    7481         148 : OGRErr OGRSpatialReference::SetLCC(double dfStdP1, double dfStdP2,
    7482             :                                    double dfCenterLat, double dfCenterLong,
    7483             :                                    double dfFalseEasting,
    7484             :                                    double dfFalseNorthing)
    7485             : 
    7486             : {
    7487         296 :     TAKE_OPTIONAL_LOCK();
    7488             : 
    7489         148 :     return d->replaceConversionAndUnref(
    7490             :         proj_create_conversion_lambert_conic_conformal_2sp(
    7491             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfStdP1, dfStdP2,
    7492         296 :             dfFalseEasting, dfFalseNorthing, nullptr, 0, nullptr, 0));
    7493             : }
    7494             : 
    7495             : /************************************************************************/
    7496             : /*                             OSRSetLCC()                              */
    7497             : /************************************************************************/
    7498             : 
    7499           1 : OGRErr OSRSetLCC(OGRSpatialReferenceH hSRS, double dfStdP1, double dfStdP2,
    7500             :                  double dfCenterLat, double dfCenterLong, double dfFalseEasting,
    7501             :                  double dfFalseNorthing)
    7502             : 
    7503             : {
    7504           1 :     VALIDATE_POINTER1(hSRS, "OSRSetLCC", OGRERR_FAILURE);
    7505             : 
    7506           1 :     return ToPointer(hSRS)->SetLCC(dfStdP1, dfStdP2, dfCenterLat, dfCenterLong,
    7507           1 :                                    dfFalseEasting, dfFalseNorthing);
    7508             : }
    7509             : 
    7510             : /************************************************************************/
    7511             : /*                             SetLCC1SP()                              */
    7512             : /************************************************************************/
    7513             : 
    7514          10 : OGRErr OGRSpatialReference::SetLCC1SP(double dfCenterLat, double dfCenterLong,
    7515             :                                       double dfScale, double dfFalseEasting,
    7516             :                                       double dfFalseNorthing)
    7517             : 
    7518             : {
    7519          20 :     TAKE_OPTIONAL_LOCK();
    7520             : 
    7521          10 :     return d->replaceConversionAndUnref(
    7522             :         proj_create_conversion_lambert_conic_conformal_1sp(
    7523             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfScale,
    7524          20 :             dfFalseEasting, dfFalseNorthing, nullptr, 0, nullptr, 0));
    7525             : }
    7526             : 
    7527             : /************************************************************************/
    7528             : /*                            OSRSetLCC1SP()                            */
    7529             : /************************************************************************/
    7530             : 
    7531           0 : OGRErr OSRSetLCC1SP(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7532             :                     double dfCenterLong, double dfScale, double dfFalseEasting,
    7533             :                     double dfFalseNorthing)
    7534             : 
    7535             : {
    7536           0 :     VALIDATE_POINTER1(hSRS, "OSRSetLCC1SP", OGRERR_FAILURE);
    7537             : 
    7538           0 :     return ToPointer(hSRS)->SetLCC1SP(dfCenterLat, dfCenterLong, dfScale,
    7539           0 :                                       dfFalseEasting, dfFalseNorthing);
    7540             : }
    7541             : 
    7542             : /************************************************************************/
    7543             : /*                              SetLCCB()                               */
    7544             : /************************************************************************/
    7545             : 
    7546           2 : OGRErr OGRSpatialReference::SetLCCB(double dfStdP1, double dfStdP2,
    7547             :                                     double dfCenterLat, double dfCenterLong,
    7548             :                                     double dfFalseEasting,
    7549             :                                     double dfFalseNorthing)
    7550             : 
    7551             : {
    7552           4 :     TAKE_OPTIONAL_LOCK();
    7553             : 
    7554           2 :     return d->replaceConversionAndUnref(
    7555             :         proj_create_conversion_lambert_conic_conformal_2sp_belgium(
    7556             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfStdP1, dfStdP2,
    7557           4 :             dfFalseEasting, dfFalseNorthing, nullptr, 0, nullptr, 0));
    7558             : }
    7559             : 
    7560             : /************************************************************************/
    7561             : /*                             OSRSetLCCB()                             */
    7562             : /************************************************************************/
    7563             : 
    7564           0 : OGRErr OSRSetLCCB(OGRSpatialReferenceH hSRS, double dfStdP1, double dfStdP2,
    7565             :                   double dfCenterLat, double dfCenterLong,
    7566             :                   double dfFalseEasting, double dfFalseNorthing)
    7567             : 
    7568             : {
    7569           0 :     VALIDATE_POINTER1(hSRS, "OSRSetLCCB", OGRERR_FAILURE);
    7570             : 
    7571           0 :     return ToPointer(hSRS)->SetLCCB(dfStdP1, dfStdP2, dfCenterLat, dfCenterLong,
    7572           0 :                                     dfFalseEasting, dfFalseNorthing);
    7573             : }
    7574             : 
    7575             : /************************************************************************/
    7576             : /*                               SetMC()                                */
    7577             : /************************************************************************/
    7578             : 
    7579           4 : OGRErr OGRSpatialReference::SetMC(double dfCenterLat, double dfCenterLong,
    7580             :                                   double dfFalseEasting, double dfFalseNorthing)
    7581             : 
    7582             : {
    7583           8 :     TAKE_OPTIONAL_LOCK();
    7584             : 
    7585             :     (void)dfCenterLat;  // ignored
    7586             : 
    7587           4 :     return d->replaceConversionAndUnref(
    7588             :         proj_create_conversion_miller_cylindrical(
    7589             :             d->getPROJContext(), dfCenterLong, dfFalseEasting, dfFalseNorthing,
    7590           8 :             nullptr, 0, nullptr, 0));
    7591             : }
    7592             : 
    7593             : /************************************************************************/
    7594             : /*                              OSRSetMC()                              */
    7595             : /************************************************************************/
    7596             : 
    7597           0 : OGRErr OSRSetMC(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7598             :                 double dfCenterLong, double dfFalseEasting,
    7599             :                 double dfFalseNorthing)
    7600             : 
    7601             : {
    7602           0 :     VALIDATE_POINTER1(hSRS, "OSRSetMC", OGRERR_FAILURE);
    7603             : 
    7604           0 :     return ToPointer(hSRS)->SetMC(dfCenterLat, dfCenterLong, dfFalseEasting,
    7605           0 :                                   dfFalseNorthing);
    7606             : }
    7607             : 
    7608             : /************************************************************************/
    7609             : /*                            SetMercator()                             */
    7610             : /************************************************************************/
    7611             : 
    7612          59 : OGRErr OGRSpatialReference::SetMercator(double dfCenterLat, double dfCenterLong,
    7613             :                                         double dfScale, double dfFalseEasting,
    7614             :                                         double dfFalseNorthing)
    7615             : 
    7616             : {
    7617         118 :     TAKE_OPTIONAL_LOCK();
    7618             : 
    7619          59 :     if (dfCenterLat != 0.0 && dfScale == 1.0)
    7620             :     {
    7621             :         // Not sure this is correct, but this is how it has been used
    7622             :         // historically
    7623           0 :         return SetMercator2SP(dfCenterLat, 0.0, dfCenterLong, dfFalseEasting,
    7624           0 :                               dfFalseNorthing);
    7625             :     }
    7626          59 :     return d->replaceConversionAndUnref(
    7627             :         proj_create_conversion_mercator_variant_a(
    7628             :             d->getPROJContext(),
    7629             :             dfCenterLat,  // should be zero
    7630             :             dfCenterLong, dfScale, dfFalseEasting, dfFalseNorthing, nullptr, 0,
    7631          59 :             nullptr, 0));
    7632             : }
    7633             : 
    7634             : /************************************************************************/
    7635             : /*                           OSRSetMercator()                           */
    7636             : /************************************************************************/
    7637             : 
    7638           2 : OGRErr OSRSetMercator(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7639             :                       double dfCenterLong, double dfScale,
    7640             :                       double dfFalseEasting, double dfFalseNorthing)
    7641             : 
    7642             : {
    7643           2 :     VALIDATE_POINTER1(hSRS, "OSRSetMercator", OGRERR_FAILURE);
    7644             : 
    7645           2 :     return ToPointer(hSRS)->SetMercator(dfCenterLat, dfCenterLong, dfScale,
    7646           2 :                                         dfFalseEasting, dfFalseNorthing);
    7647             : }
    7648             : 
    7649             : /************************************************************************/
    7650             : /*                           SetMercator2SP()                           */
    7651             : /************************************************************************/
    7652             : 
    7653          31 : OGRErr OGRSpatialReference::SetMercator2SP(double dfStdP1, double dfCenterLat,
    7654             :                                            double dfCenterLong,
    7655             :                                            double dfFalseEasting,
    7656             :                                            double dfFalseNorthing)
    7657             : 
    7658             : {
    7659          31 :     if (dfCenterLat == 0.0)
    7660             :     {
    7661          30 :         return d->replaceConversionAndUnref(
    7662             :             proj_create_conversion_mercator_variant_b(
    7663             :                 d->getPROJContext(), dfStdP1, dfCenterLong, dfFalseEasting,
    7664          30 :                 dfFalseNorthing, nullptr, 0, nullptr, 0));
    7665             :     }
    7666             : 
    7667           1 :     TAKE_OPTIONAL_LOCK();
    7668             : 
    7669           1 :     SetProjection(SRS_PT_MERCATOR_2SP);
    7670             : 
    7671           1 :     SetNormProjParm(SRS_PP_STANDARD_PARALLEL_1, dfStdP1);
    7672           1 :     SetNormProjParm(SRS_PP_LATITUDE_OF_ORIGIN, dfCenterLat);
    7673           1 :     SetNormProjParm(SRS_PP_CENTRAL_MERIDIAN, dfCenterLong);
    7674           1 :     SetNormProjParm(SRS_PP_FALSE_EASTING, dfFalseEasting);
    7675           1 :     SetNormProjParm(SRS_PP_FALSE_NORTHING, dfFalseNorthing);
    7676             : 
    7677           1 :     return OGRERR_NONE;
    7678             : }
    7679             : 
    7680             : /************************************************************************/
    7681             : /*                         OSRSetMercator2SP()                          */
    7682             : /************************************************************************/
    7683             : 
    7684           1 : OGRErr OSRSetMercator2SP(OGRSpatialReferenceH hSRS, double dfStdP1,
    7685             :                          double dfCenterLat, double dfCenterLong,
    7686             :                          double dfFalseEasting, double dfFalseNorthing)
    7687             : 
    7688             : {
    7689           1 :     VALIDATE_POINTER1(hSRS, "OSRSetMercator2SP", OGRERR_FAILURE);
    7690             : 
    7691           1 :     return ToPointer(hSRS)->SetMercator2SP(dfStdP1, dfCenterLat, dfCenterLong,
    7692           1 :                                            dfFalseEasting, dfFalseNorthing);
    7693             : }
    7694             : 
    7695             : /************************************************************************/
    7696             : /*                            SetMollweide()                            */
    7697             : /************************************************************************/
    7698             : 
    7699           3 : OGRErr OGRSpatialReference::SetMollweide(double dfCentralMeridian,
    7700             :                                          double dfFalseEasting,
    7701             :                                          double dfFalseNorthing)
    7702             : 
    7703             : {
    7704           6 :     TAKE_OPTIONAL_LOCK();
    7705             : 
    7706           3 :     return d->replaceConversionAndUnref(proj_create_conversion_mollweide(
    7707             :         d->getPROJContext(), dfCentralMeridian, dfFalseEasting, dfFalseNorthing,
    7708           6 :         nullptr, 0, nullptr, 0));
    7709             : }
    7710             : 
    7711             : /************************************************************************/
    7712             : /*                          OSRSetMollweide()                           */
    7713             : /************************************************************************/
    7714             : 
    7715           0 : OGRErr OSRSetMollweide(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    7716             :                        double dfFalseEasting, double dfFalseNorthing)
    7717             : 
    7718             : {
    7719           0 :     VALIDATE_POINTER1(hSRS, "OSRSetMollweide", OGRERR_FAILURE);
    7720             : 
    7721           0 :     return ToPointer(hSRS)->SetMollweide(dfCentralMeridian, dfFalseEasting,
    7722           0 :                                          dfFalseNorthing);
    7723             : }
    7724             : 
    7725             : /************************************************************************/
    7726             : /*                              SetNZMG()                               */
    7727             : /************************************************************************/
    7728             : 
    7729           7 : OGRErr OGRSpatialReference::SetNZMG(double dfCenterLat, double dfCenterLong,
    7730             :                                     double dfFalseEasting,
    7731             :                                     double dfFalseNorthing)
    7732             : 
    7733             : {
    7734          14 :     TAKE_OPTIONAL_LOCK();
    7735             : 
    7736           7 :     return d->replaceConversionAndUnref(
    7737             :         proj_create_conversion_new_zealand_mapping_grid(
    7738             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    7739          14 :             dfFalseNorthing, nullptr, 0, nullptr, 0));
    7740             : }
    7741             : 
    7742             : /************************************************************************/
    7743             : /*                             OSRSetNZMG()                             */
    7744             : /************************************************************************/
    7745             : 
    7746           0 : OGRErr OSRSetNZMG(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7747             :                   double dfCenterLong, double dfFalseEasting,
    7748             :                   double dfFalseNorthing)
    7749             : 
    7750             : {
    7751           0 :     VALIDATE_POINTER1(hSRS, "OSRSetNZMG", OGRERR_FAILURE);
    7752             : 
    7753           0 :     return ToPointer(hSRS)->SetNZMG(dfCenterLat, dfCenterLong, dfFalseEasting,
    7754           0 :                                     dfFalseNorthing);
    7755             : }
    7756             : 
    7757             : /************************************************************************/
    7758             : /*                               SetOS()                                */
    7759             : /************************************************************************/
    7760             : 
    7761           6 : OGRErr OGRSpatialReference::SetOS(double dfOriginLat, double dfCMeridian,
    7762             :                                   double dfScale, double dfFalseEasting,
    7763             :                                   double dfFalseNorthing)
    7764             : 
    7765             : {
    7766          12 :     TAKE_OPTIONAL_LOCK();
    7767             : 
    7768           6 :     return d->replaceConversionAndUnref(
    7769             :         proj_create_conversion_oblique_stereographic(
    7770             :             d->getPROJContext(), dfOriginLat, dfCMeridian, dfScale,
    7771          12 :             dfFalseEasting, dfFalseNorthing, nullptr, 0, nullptr, 0));
    7772             : }
    7773             : 
    7774             : /************************************************************************/
    7775             : /*                              OSRSetOS()                              */
    7776             : /************************************************************************/
    7777             : 
    7778           0 : OGRErr OSRSetOS(OGRSpatialReferenceH hSRS, double dfOriginLat,
    7779             :                 double dfCMeridian, double dfScale, double dfFalseEasting,
    7780             :                 double dfFalseNorthing)
    7781             : 
    7782             : {
    7783           0 :     VALIDATE_POINTER1(hSRS, "OSRSetOS", OGRERR_FAILURE);
    7784             : 
    7785           0 :     return ToPointer(hSRS)->SetOS(dfOriginLat, dfCMeridian, dfScale,
    7786           0 :                                   dfFalseEasting, dfFalseNorthing);
    7787             : }
    7788             : 
    7789             : /************************************************************************/
    7790             : /*                          SetOrthographic()                           */
    7791             : /************************************************************************/
    7792             : 
    7793           7 : OGRErr OGRSpatialReference::SetOrthographic(double dfCenterLat,
    7794             :                                             double dfCenterLong,
    7795             :                                             double dfFalseEasting,
    7796             :                                             double dfFalseNorthing)
    7797             : 
    7798             : {
    7799          14 :     TAKE_OPTIONAL_LOCK();
    7800             : 
    7801           7 :     return d->replaceConversionAndUnref(proj_create_conversion_orthographic(
    7802             :         d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    7803          14 :         dfFalseNorthing, nullptr, 0, nullptr, 0));
    7804             : }
    7805             : 
    7806             : /************************************************************************/
    7807             : /*                         OSRSetOrthographic()                         */
    7808             : /************************************************************************/
    7809             : 
    7810           1 : OGRErr OSRSetOrthographic(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7811             :                           double dfCenterLong, double dfFalseEasting,
    7812             :                           double dfFalseNorthing)
    7813             : 
    7814             : {
    7815           1 :     VALIDATE_POINTER1(hSRS, "OSRSetOrthographic", OGRERR_FAILURE);
    7816             : 
    7817           1 :     return ToPointer(hSRS)->SetOrthographic(dfCenterLat, dfCenterLong,
    7818           1 :                                             dfFalseEasting, dfFalseNorthing);
    7819             : }
    7820             : 
    7821             : /************************************************************************/
    7822             : /*                            SetPolyconic()                            */
    7823             : /************************************************************************/
    7824             : 
    7825           7 : OGRErr OGRSpatialReference::SetPolyconic(double dfCenterLat,
    7826             :                                          double dfCenterLong,
    7827             :                                          double dfFalseEasting,
    7828             :                                          double dfFalseNorthing)
    7829             : 
    7830             : {
    7831          14 :     TAKE_OPTIONAL_LOCK();
    7832             : 
    7833             :     // note: it seems that by some definitions this should include a
    7834             :     //       scale_factor parameter.
    7835           7 :     return d->replaceConversionAndUnref(
    7836             :         proj_create_conversion_american_polyconic(
    7837             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    7838          14 :             dfFalseNorthing, nullptr, 0, nullptr, 0));
    7839             : }
    7840             : 
    7841             : /************************************************************************/
    7842             : /*                          OSRSetPolyconic()                           */
    7843             : /************************************************************************/
    7844             : 
    7845           0 : OGRErr OSRSetPolyconic(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7846             :                        double dfCenterLong, double dfFalseEasting,
    7847             :                        double dfFalseNorthing)
    7848             : 
    7849             : {
    7850           0 :     VALIDATE_POINTER1(hSRS, "OSRSetPolyconic", OGRERR_FAILURE);
    7851             : 
    7852           0 :     return ToPointer(hSRS)->SetPolyconic(dfCenterLat, dfCenterLong,
    7853           0 :                                          dfFalseEasting, dfFalseNorthing);
    7854             : }
    7855             : 
    7856             : /************************************************************************/
    7857             : /*                               SetPS()                                */
    7858             : /************************************************************************/
    7859             : 
    7860             : /** Sets a Polar Stereographic projection.
    7861             :  *
    7862             :  * Two variants are possible:
    7863             :  * - Polar Stereographic Variant A: dfCenterLat must be +/- 90° and is
    7864             :  *   interpreted as the latitude of origin, combined with the scale factor
    7865             :  * - Polar Stereographic Variant B: dfCenterLat is different from +/- 90° and
    7866             :  *   is interpreted as the latitude of true scale. In that situation, dfScale
    7867             :  *   must be set to 1 (it is ignored in the projection parameters)
    7868             :  */
    7869          30 : OGRErr OGRSpatialReference::SetPS(double dfCenterLat, double dfCenterLong,
    7870             :                                   double dfScale, double dfFalseEasting,
    7871             :                                   double dfFalseNorthing)
    7872             : 
    7873             : {
    7874          60 :     TAKE_OPTIONAL_LOCK();
    7875             : 
    7876             :     PJ *conv;
    7877          30 :     if (dfScale == 1.0 && std::abs(std::abs(dfCenterLat) - 90) > 1e-8)
    7878             :     {
    7879          20 :         conv = proj_create_conversion_polar_stereographic_variant_b(
    7880             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    7881             :             dfFalseNorthing, nullptr, 0, nullptr, 0);
    7882             :     }
    7883             :     else
    7884             :     {
    7885          10 :         conv = proj_create_conversion_polar_stereographic_variant_a(
    7886             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfScale,
    7887             :             dfFalseEasting, dfFalseNorthing, nullptr, 0, nullptr, 0);
    7888             :     }
    7889             : 
    7890          30 :     const char *pszName = nullptr;
    7891          30 :     double dfConvFactor = GetTargetLinearUnits(nullptr, &pszName);
    7892          30 :     CPLString osName = pszName ? pszName : "";
    7893             : 
    7894          30 :     d->refreshProjObj();
    7895             : 
    7896          30 :     d->demoteFromBoundCRS();
    7897             : 
    7898          30 :     auto cs = proj_create_cartesian_2D_cs(
    7899             :         d->getPROJContext(),
    7900             :         dfCenterLat > 0 ? PJ_CART2D_NORTH_POLE_EASTING_SOUTH_NORTHING_SOUTH
    7901             :                         : PJ_CART2D_SOUTH_POLE_EASTING_NORTH_NORTHING_NORTH,
    7902          30 :         !osName.empty() ? osName.c_str() : nullptr, dfConvFactor);
    7903             :     auto projCRS =
    7904          30 :         proj_create_projected_crs(d->getPROJContext(), d->getProjCRSName(),
    7905          30 :                                   d->getGeodBaseCRS(), conv, cs);
    7906          30 :     proj_destroy(conv);
    7907          30 :     proj_destroy(cs);
    7908             : 
    7909          30 :     d->setPjCRS(projCRS);
    7910             : 
    7911          30 :     d->undoDemoteFromBoundCRS();
    7912             : 
    7913          60 :     return OGRERR_NONE;
    7914             : }
    7915             : 
    7916             : /************************************************************************/
    7917             : /*                              OSRSetPS()                              */
    7918             : /************************************************************************/
    7919             : 
    7920           1 : OGRErr OSRSetPS(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7921             :                 double dfCenterLong, double dfScale, double dfFalseEasting,
    7922             :                 double dfFalseNorthing)
    7923             : 
    7924             : {
    7925           1 :     VALIDATE_POINTER1(hSRS, "OSRSetPS", OGRERR_FAILURE);
    7926             : 
    7927           1 :     return ToPointer(hSRS)->SetPS(dfCenterLat, dfCenterLong, dfScale,
    7928           1 :                                   dfFalseEasting, dfFalseNorthing);
    7929             : }
    7930             : 
    7931             : /************************************************************************/
    7932             : /*                            SetRobinson()                             */
    7933             : /************************************************************************/
    7934             : 
    7935           4 : OGRErr OGRSpatialReference::SetRobinson(double dfCenterLong,
    7936             :                                         double dfFalseEasting,
    7937             :                                         double dfFalseNorthing)
    7938             : 
    7939             : {
    7940           8 :     TAKE_OPTIONAL_LOCK();
    7941             : 
    7942           4 :     return d->replaceConversionAndUnref(proj_create_conversion_robinson(
    7943             :         d->getPROJContext(), dfCenterLong, dfFalseEasting, dfFalseNorthing,
    7944           8 :         nullptr, 0, nullptr, 0));
    7945             : }
    7946             : 
    7947             : /************************************************************************/
    7948             : /*                           OSRSetRobinson()                           */
    7949             : /************************************************************************/
    7950             : 
    7951           0 : OGRErr OSRSetRobinson(OGRSpatialReferenceH hSRS, double dfCenterLong,
    7952             :                       double dfFalseEasting, double dfFalseNorthing)
    7953             : 
    7954             : {
    7955           0 :     VALIDATE_POINTER1(hSRS, "OSRSetRobinson", OGRERR_FAILURE);
    7956             : 
    7957           0 :     return ToPointer(hSRS)->SetRobinson(dfCenterLong, dfFalseEasting,
    7958           0 :                                         dfFalseNorthing);
    7959             : }
    7960             : 
    7961             : /************************************************************************/
    7962             : /*                           SetSinusoidal()                            */
    7963             : /************************************************************************/
    7964             : 
    7965          36 : OGRErr OGRSpatialReference::SetSinusoidal(double dfCenterLong,
    7966             :                                           double dfFalseEasting,
    7967             :                                           double dfFalseNorthing)
    7968             : 
    7969             : {
    7970          72 :     TAKE_OPTIONAL_LOCK();
    7971             : 
    7972          36 :     return d->replaceConversionAndUnref(proj_create_conversion_sinusoidal(
    7973             :         d->getPROJContext(), dfCenterLong, dfFalseEasting, dfFalseNorthing,
    7974          72 :         nullptr, 0, nullptr, 0));
    7975             : }
    7976             : 
    7977             : /************************************************************************/
    7978             : /*                          OSRSetSinusoidal()                          */
    7979             : /************************************************************************/
    7980             : 
    7981           1 : OGRErr OSRSetSinusoidal(OGRSpatialReferenceH hSRS, double dfCenterLong,
    7982             :                         double dfFalseEasting, double dfFalseNorthing)
    7983             : 
    7984             : {
    7985           1 :     VALIDATE_POINTER1(hSRS, "OSRSetSinusoidal", OGRERR_FAILURE);
    7986             : 
    7987           1 :     return ToPointer(hSRS)->SetSinusoidal(dfCenterLong, dfFalseEasting,
    7988           1 :                                           dfFalseNorthing);
    7989             : }
    7990             : 
    7991             : /************************************************************************/
    7992             : /*                          SetStereographic()                          */
    7993             : /************************************************************************/
    7994             : 
    7995           2 : OGRErr OGRSpatialReference::SetStereographic(double dfOriginLat,
    7996             :                                              double dfCMeridian, double dfScale,
    7997             :                                              double dfFalseEasting,
    7998             :                                              double dfFalseNorthing)
    7999             : 
    8000             : {
    8001           4 :     TAKE_OPTIONAL_LOCK();
    8002             : 
    8003           2 :     return d->replaceConversionAndUnref(proj_create_conversion_stereographic(
    8004             :         d->getPROJContext(), dfOriginLat, dfCMeridian, dfScale, dfFalseEasting,
    8005           4 :         dfFalseNorthing, nullptr, 0, nullptr, 0));
    8006             : }
    8007             : 
    8008             : /************************************************************************/
    8009             : /*                        OSRSetStereographic()                         */
    8010             : /************************************************************************/
    8011             : 
    8012           0 : OGRErr OSRSetStereographic(OGRSpatialReferenceH hSRS, double dfOriginLat,
    8013             :                            double dfCMeridian, double dfScale,
    8014             :                            double dfFalseEasting, double dfFalseNorthing)
    8015             : 
    8016             : {
    8017           0 :     VALIDATE_POINTER1(hSRS, "OSRSetStereographic", OGRERR_FAILURE);
    8018             : 
    8019           0 :     return ToPointer(hSRS)->SetStereographic(dfOriginLat, dfCMeridian, dfScale,
    8020           0 :                                              dfFalseEasting, dfFalseNorthing);
    8021             : }
    8022             : 
    8023             : /************************************************************************/
    8024             : /*                               SetSOC()                               */
    8025             : /*                                                                      */
    8026             : /*      NOTE: This definition isn't really used in practice any more    */
    8027             : /*      and should be considered deprecated.  It seems that swiss       */
    8028             : /*      oblique mercator is now define as Hotine_Oblique_Mercator       */
    8029             : /*      with an azimuth of 90 and a rectified_grid_angle of 90.  See    */
    8030             : /*      EPSG:2056 and Bug 423.                                          */
    8031             : /************************************************************************/
    8032             : 
    8033           2 : OGRErr OGRSpatialReference::SetSOC(double dfLatitudeOfOrigin,
    8034             :                                    double dfCentralMeridian,
    8035             :                                    double dfFalseEasting,
    8036             :                                    double dfFalseNorthing)
    8037             : 
    8038             : {
    8039           4 :     TAKE_OPTIONAL_LOCK();
    8040             : 
    8041           2 :     return d->replaceConversionAndUnref(
    8042             :         proj_create_conversion_hotine_oblique_mercator_variant_b(
    8043             :             d->getPROJContext(), dfLatitudeOfOrigin, dfCentralMeridian, 90.0,
    8044             :             90.0, 1.0, dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr,
    8045           4 :             0.0));
    8046             : #if 0
    8047             :     SetProjection( SRS_PT_SWISS_OBLIQUE_CYLINDRICAL );
    8048             :     SetNormProjParm( SRS_PP_LATITUDE_OF_CENTER, dfLatitudeOfOrigin );
    8049             :     SetNormProjParm( SRS_PP_CENTRAL_MERIDIAN, dfCentralMeridian );
    8050             :     SetNormProjParm( SRS_PP_FALSE_EASTING, dfFalseEasting );
    8051             :     SetNormProjParm( SRS_PP_FALSE_NORTHING, dfFalseNorthing );
    8052             : 
    8053             :     return OGRERR_NONE;
    8054             : #endif
    8055             : }
    8056             : 
    8057             : /************************************************************************/
    8058             : /*                             OSRSetSOC()                              */
    8059             : /************************************************************************/
    8060             : 
    8061           0 : OGRErr OSRSetSOC(OGRSpatialReferenceH hSRS, double dfLatitudeOfOrigin,
    8062             :                  double dfCentralMeridian, double dfFalseEasting,
    8063             :                  double dfFalseNorthing)
    8064             : 
    8065             : {
    8066           0 :     VALIDATE_POINTER1(hSRS, "OSRSetSOC", OGRERR_FAILURE);
    8067             : 
    8068           0 :     return ToPointer(hSRS)->SetSOC(dfLatitudeOfOrigin, dfCentralMeridian,
    8069           0 :                                    dfFalseEasting, dfFalseNorthing);
    8070             : }
    8071             : 
    8072             : /************************************************************************/
    8073             : /*                               SetVDG()                               */
    8074             : /************************************************************************/
    8075             : 
    8076           2 : OGRErr OGRSpatialReference::SetVDG(double dfCMeridian, double dfFalseEasting,
    8077             :                                    double dfFalseNorthing)
    8078             : 
    8079             : {
    8080           4 :     TAKE_OPTIONAL_LOCK();
    8081             : 
    8082           2 :     return d->replaceConversionAndUnref(proj_create_conversion_van_der_grinten(
    8083             :         d->getPROJContext(), dfCMeridian, dfFalseEasting, dfFalseNorthing,
    8084           4 :         nullptr, 0, nullptr, 0));
    8085             : }
    8086             : 
    8087             : /************************************************************************/
    8088             : /*                             OSRSetVDG()                              */
    8089             : /************************************************************************/
    8090             : 
    8091           0 : OGRErr OSRSetVDG(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    8092             :                  double dfFalseEasting, double dfFalseNorthing)
    8093             : 
    8094             : {
    8095           0 :     VALIDATE_POINTER1(hSRS, "OSRSetVDG", OGRERR_FAILURE);
    8096             : 
    8097           0 :     return ToPointer(hSRS)->SetVDG(dfCentralMeridian, dfFalseEasting,
    8098           0 :                                    dfFalseNorthing);
    8099             : }
    8100             : 
    8101             : /************************************************************************/
    8102             : /*                               SetUTM()                               */
    8103             : /************************************************************************/
    8104             : 
    8105             : /**
    8106             :  * \brief Set UTM projection definition.
    8107             :  *
    8108             :  * This will generate a projection definition with the full set of
    8109             :  * transverse mercator projection parameters for the given UTM zone.
    8110             :  * If no PROJCS[] description is set yet, one will be set to look
    8111             :  * like "UTM Zone %d, {Northern, Southern} Hemisphere".
    8112             :  *
    8113             :  * This method is the same as the C function OSRSetUTM().
    8114             :  *
    8115             :  * @param nZone UTM zone.
    8116             :  *
    8117             :  * @param bNorth TRUE for northern hemisphere, or FALSE for southern
    8118             :  * hemisphere.
    8119             :  *
    8120             :  * @return OGRERR_NONE on success.
    8121             :  */
    8122             : 
    8123         314 : OGRErr OGRSpatialReference::SetUTM(int nZone, int bNorth)
    8124             : 
    8125             : {
    8126         628 :     TAKE_OPTIONAL_LOCK();
    8127             : 
    8128         314 :     if (nZone < 0 || nZone > 60)
    8129             :     {
    8130           0 :         CPLError(CE_Failure, CPLE_AppDefined, "Invalid zone: %d", nZone);
    8131           0 :         return OGRERR_FAILURE;
    8132             :     }
    8133             : 
    8134         314 :     return d->replaceConversionAndUnref(
    8135         314 :         proj_create_conversion_utm(d->getPROJContext(), nZone, bNorth));
    8136             : }
    8137             : 
    8138             : /************************************************************************/
    8139             : /*                             OSRSetUTM()                              */
    8140             : /************************************************************************/
    8141             : 
    8142             : /**
    8143             :  * \brief Set UTM projection definition.
    8144             :  *
    8145             :  * This is the same as the C++ method OGRSpatialReference::SetUTM()
    8146             :  */
    8147          19 : OGRErr OSRSetUTM(OGRSpatialReferenceH hSRS, int nZone, int bNorth)
    8148             : 
    8149             : {
    8150          19 :     VALIDATE_POINTER1(hSRS, "OSRSetUTM", OGRERR_FAILURE);
    8151             : 
    8152          19 :     return ToPointer(hSRS)->SetUTM(nZone, bNorth);
    8153             : }
    8154             : 
    8155             : /************************************************************************/
    8156             : /*                             GetUTMZone()                             */
    8157             : /*                                                                      */
    8158             : /*      Returns zero if it isn't UTM.                                   */
    8159             : /************************************************************************/
    8160             : 
    8161             : /**
    8162             :  * \brief Get utm zone information.
    8163             :  *
    8164             :  * This is the same as the C function OSRGetUTMZone().
    8165             :  *
    8166             :  * In SWIG bindings (Python, Java, etc) the GetUTMZone() method returns a
    8167             :  * zone which is negative in the southern hemisphere instead of having the
    8168             :  * pbNorth flag used in the C and C++ interface.
    8169             :  *
    8170             :  * @param pbNorth pointer to in to set to TRUE if northern hemisphere, or
    8171             :  * FALSE if southern.
    8172             :  *
    8173             :  * @return UTM zone number or zero if this isn't a UTM definition.
    8174             :  */
    8175             : 
    8176         611 : int OGRSpatialReference::GetUTMZone(int *pbNorth) const
    8177             : 
    8178             : {
    8179        1222 :     TAKE_OPTIONAL_LOCK();
    8180             : 
    8181         611 :     if (IsProjected() && GetAxesCount() == 3)
    8182             :     {
    8183           1 :         OGRSpatialReference *poSRSTmp = Clone();
    8184           1 :         poSRSTmp->DemoteTo2D(nullptr);
    8185           1 :         const int nZone = poSRSTmp->GetUTMZone(pbNorth);
    8186           1 :         delete poSRSTmp;
    8187           1 :         return nZone;
    8188             :     }
    8189             : 
    8190         610 :     const char *pszProjection = GetAttrValue("PROJECTION");
    8191             : 
    8192         610 :     if (pszProjection == nullptr ||
    8193         530 :         !EQUAL(pszProjection, SRS_PT_TRANSVERSE_MERCATOR))
    8194         278 :         return 0;
    8195             : 
    8196         332 :     if (GetNormProjParm(SRS_PP_LATITUDE_OF_ORIGIN, 0.0) != 0.0)
    8197           5 :         return 0;
    8198             : 
    8199         327 :     if (GetProjParm(SRS_PP_SCALE_FACTOR, 1.0) != 0.9996)
    8200          15 :         return 0;
    8201             : 
    8202         312 :     if (fabs(GetNormProjParm(SRS_PP_FALSE_EASTING, 0.0) - 500000.0) > 0.001)
    8203           6 :         return 0;
    8204             : 
    8205         306 :     const double dfFalseNorthing = GetNormProjParm(SRS_PP_FALSE_NORTHING, 0.0);
    8206             : 
    8207         306 :     if (dfFalseNorthing != 0.0 && fabs(dfFalseNorthing - 10000000.0) > 0.001)
    8208           0 :         return 0;
    8209             : 
    8210         306 :     if (pbNorth != nullptr)
    8211         240 :         *pbNorth = (dfFalseNorthing == 0);
    8212             : 
    8213             :     const double dfCentralMeridian =
    8214         306 :         GetNormProjParm(SRS_PP_CENTRAL_MERIDIAN, 0.0);
    8215         306 :     const double dfZone = (dfCentralMeridian + 186.0) / 6.0;
    8216             : 
    8217         612 :     if (dfCentralMeridian < -177.00001 || dfCentralMeridian > 177.000001 ||
    8218         918 :         std::isnan(dfZone) ||
    8219         306 :         std::abs(dfZone - static_cast<int>(dfZone) - 0.5) > 0.00001)
    8220           0 :         return 0;
    8221             : 
    8222         306 :     return static_cast<int>(dfZone);
    8223             : }
    8224             : 
    8225             : /************************************************************************/
    8226             : /*                           OSRGetUTMZone()                            */
    8227             : /************************************************************************/
    8228             : 
    8229             : /**
    8230             :  * \brief Get utm zone information.
    8231             :  *
    8232             :  * This is the same as the C++ method OGRSpatialReference::GetUTMZone()
    8233             :  */
    8234           6 : int OSRGetUTMZone(OGRSpatialReferenceH hSRS, int *pbNorth)
    8235             : 
    8236             : {
    8237           6 :     VALIDATE_POINTER1(hSRS, "OSRGetUTMZone", 0);
    8238             : 
    8239           6 :     return ToPointer(hSRS)->GetUTMZone(pbNorth);
    8240             : }
    8241             : 
    8242             : /************************************************************************/
    8243             : /*                             SetWagner()                              */
    8244             : /************************************************************************/
    8245             : 
    8246           0 : OGRErr OGRSpatialReference::SetWagner(int nVariation,  // 1--7.
    8247             :                                       double dfCenterLat, double dfFalseEasting,
    8248             :                                       double dfFalseNorthing)
    8249             : 
    8250             : {
    8251           0 :     TAKE_OPTIONAL_LOCK();
    8252             : 
    8253             :     PJ *conv;
    8254           0 :     if (nVariation == 1)
    8255             :     {
    8256           0 :         conv = proj_create_conversion_wagner_i(d->getPROJContext(), 0.0,
    8257             :                                                dfFalseEasting, dfFalseNorthing,
    8258             :                                                nullptr, 0.0, nullptr, 0.0);
    8259             :     }
    8260           0 :     else if (nVariation == 2)
    8261             :     {
    8262           0 :         conv = proj_create_conversion_wagner_ii(d->getPROJContext(), 0.0,
    8263             :                                                 dfFalseEasting, dfFalseNorthing,
    8264             :                                                 nullptr, 0.0, nullptr, 0.0);
    8265             :     }
    8266           0 :     else if (nVariation == 3)
    8267             :     {
    8268           0 :         conv = proj_create_conversion_wagner_iii(
    8269             :             d->getPROJContext(), dfCenterLat, 0.0, dfFalseEasting,
    8270             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    8271             :     }
    8272           0 :     else if (nVariation == 4)
    8273             :     {
    8274           0 :         conv = proj_create_conversion_wagner_iv(d->getPROJContext(), 0.0,
    8275             :                                                 dfFalseEasting, dfFalseNorthing,
    8276             :                                                 nullptr, 0.0, nullptr, 0.0);
    8277             :     }
    8278           0 :     else if (nVariation == 5)
    8279             :     {
    8280           0 :         conv = proj_create_conversion_wagner_v(d->getPROJContext(), 0.0,
    8281             :                                                dfFalseEasting, dfFalseNorthing,
    8282             :                                                nullptr, 0.0, nullptr, 0.0);
    8283             :     }
    8284           0 :     else if (nVariation == 6)
    8285             :     {
    8286           0 :         conv = proj_create_conversion_wagner_vi(d->getPROJContext(), 0.0,
    8287             :                                                 dfFalseEasting, dfFalseNorthing,
    8288             :                                                 nullptr, 0.0, nullptr, 0.0);
    8289             :     }
    8290           0 :     else if (nVariation == 7)
    8291             :     {
    8292           0 :         conv = proj_create_conversion_wagner_vii(
    8293             :             d->getPROJContext(), 0.0, dfFalseEasting, dfFalseNorthing, nullptr,
    8294             :             0.0, nullptr, 0.0);
    8295             :     }
    8296             :     else
    8297             :     {
    8298           0 :         CPLError(CE_Failure, CPLE_AppDefined,
    8299             :                  "Unsupported Wagner variation (%d).", nVariation);
    8300           0 :         return OGRERR_UNSUPPORTED_SRS;
    8301             :     }
    8302             : 
    8303           0 :     return d->replaceConversionAndUnref(conv);
    8304             : }
    8305             : 
    8306             : /************************************************************************/
    8307             : /*                            OSRSetWagner()                            */
    8308             : /************************************************************************/
    8309             : 
    8310           0 : OGRErr OSRSetWagner(OGRSpatialReferenceH hSRS, int nVariation,
    8311             :                     double dfCenterLat, double dfFalseEasting,
    8312             :                     double dfFalseNorthing)
    8313             : 
    8314             : {
    8315           0 :     VALIDATE_POINTER1(hSRS, "OSRSetWagner", OGRERR_FAILURE);
    8316             : 
    8317           0 :     return ToPointer(hSRS)->SetWagner(nVariation, dfCenterLat, dfFalseEasting,
    8318           0 :                                       dfFalseNorthing);
    8319             : }
    8320             : 
    8321             : /************************************************************************/
    8322             : /*                               SetQSC()                               */
    8323             : /************************************************************************/
    8324             : 
    8325           0 : OGRErr OGRSpatialReference::SetQSC(double dfCenterLat, double dfCenterLong)
    8326             : {
    8327           0 :     TAKE_OPTIONAL_LOCK();
    8328             : 
    8329           0 :     return d->replaceConversionAndUnref(
    8330             :         proj_create_conversion_quadrilateralized_spherical_cube(
    8331             :             d->getPROJContext(), dfCenterLat, dfCenterLong, 0.0, 0.0, nullptr,
    8332           0 :             0, nullptr, 0));
    8333             : }
    8334             : 
    8335             : /************************************************************************/
    8336             : /*                             OSRSetQSC()                              */
    8337             : /************************************************************************/
    8338             : 
    8339           0 : OGRErr OSRSetQSC(OGRSpatialReferenceH hSRS, double dfCenterLat,
    8340             :                  double dfCenterLong)
    8341             : 
    8342             : {
    8343           0 :     VALIDATE_POINTER1(hSRS, "OSRSetQSC", OGRERR_FAILURE);
    8344             : 
    8345           0 :     return ToPointer(hSRS)->SetQSC(dfCenterLat, dfCenterLong);
    8346             : }
    8347             : 
    8348             : /************************************************************************/
    8349             : /*                               SetSCH()                               */
    8350             : /************************************************************************/
    8351             : 
    8352           0 : OGRErr OGRSpatialReference::SetSCH(double dfPegLat, double dfPegLong,
    8353             :                                    double dfPegHeading, double dfPegHgt)
    8354             : 
    8355             : {
    8356           0 :     TAKE_OPTIONAL_LOCK();
    8357             : 
    8358           0 :     return d->replaceConversionAndUnref(
    8359             :         proj_create_conversion_spherical_cross_track_height(
    8360             :             d->getPROJContext(), dfPegLat, dfPegLong, dfPegHeading, dfPegHgt,
    8361           0 :             nullptr, 0, nullptr, 0));
    8362             : }
    8363             : 
    8364             : /************************************************************************/
    8365             : /*                             OSRSetSCH()                              */
    8366             : /************************************************************************/
    8367             : 
    8368           0 : OGRErr OSRSetSCH(OGRSpatialReferenceH hSRS, double dfPegLat, double dfPegLong,
    8369             :                  double dfPegHeading, double dfPegHgt)
    8370             : 
    8371             : {
    8372           0 :     VALIDATE_POINTER1(hSRS, "OSRSetSCH", OGRERR_FAILURE);
    8373             : 
    8374           0 :     return ToPointer(hSRS)->SetSCH(dfPegLat, dfPegLong, dfPegHeading, dfPegHgt);
    8375             : }
    8376             : 
    8377             : /************************************************************************/
    8378             : /*                       SetVerticalPerspective()                       */
    8379             : /************************************************************************/
    8380             : 
    8381           3 : OGRErr OGRSpatialReference::SetVerticalPerspective(
    8382             :     double dfTopoOriginLat, double dfTopoOriginLon, double dfTopoOriginHeight,
    8383             :     double dfViewPointHeight, double dfFalseEasting, double dfFalseNorthing)
    8384             : {
    8385           6 :     TAKE_OPTIONAL_LOCK();
    8386             : 
    8387           3 :     return d->replaceConversionAndUnref(
    8388             :         proj_create_conversion_vertical_perspective(
    8389             :             d->getPROJContext(), dfTopoOriginLat, dfTopoOriginLon,
    8390             :             dfTopoOriginHeight, dfViewPointHeight, dfFalseEasting,
    8391           6 :             dfFalseNorthing, nullptr, 0, nullptr, 0));
    8392             : }
    8393             : 
    8394             : /************************************************************************/
    8395             : /*                     OSRSetVerticalPerspective()                      */
    8396             : /************************************************************************/
    8397             : 
    8398           1 : OGRErr OSRSetVerticalPerspective(OGRSpatialReferenceH hSRS,
    8399             :                                  double dfTopoOriginLat, double dfTopoOriginLon,
    8400             :                                  double dfTopoOriginHeight,
    8401             :                                  double dfViewPointHeight,
    8402             :                                  double dfFalseEasting, double dfFalseNorthing)
    8403             : 
    8404             : {
    8405           1 :     VALIDATE_POINTER1(hSRS, "OSRSetVerticalPerspective", OGRERR_FAILURE);
    8406             : 
    8407           1 :     return ToPointer(hSRS)->SetVerticalPerspective(
    8408             :         dfTopoOriginLat, dfTopoOriginLon, dfTopoOriginHeight, dfViewPointHeight,
    8409           1 :         dfFalseEasting, dfFalseNorthing);
    8410             : }
    8411             : 
    8412             : /************************************************************************/
    8413             : /*          SetDerivedGeogCRSWithPoleRotationGRIBConvention()           */
    8414             : /************************************************************************/
    8415             : 
    8416           2 : OGRErr OGRSpatialReference::SetDerivedGeogCRSWithPoleRotationGRIBConvention(
    8417             :     const char *pszCRSName, double dfSouthPoleLat, double dfSouthPoleLon,
    8418             :     double dfAxisRotation)
    8419             : {
    8420           4 :     TAKE_OPTIONAL_LOCK();
    8421             : 
    8422           2 :     d->refreshProjObj();
    8423           2 :     if (!d->m_pj_crs)
    8424           0 :         return OGRERR_FAILURE;
    8425           2 :     if (d->m_pjType != PJ_TYPE_GEOGRAPHIC_2D_CRS)
    8426           0 :         return OGRERR_FAILURE;
    8427           2 :     auto ctxt = d->getPROJContext();
    8428           2 :     auto conv = proj_create_conversion_pole_rotation_grib_convention(
    8429             :         ctxt, dfSouthPoleLat, dfSouthPoleLon, dfAxisRotation, nullptr, 0);
    8430           2 :     auto cs = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
    8431           4 :     d->setPjCRS(proj_create_derived_geographic_crs(ctxt, pszCRSName,
    8432           2 :                                                    d->m_pj_crs, conv, cs));
    8433           2 :     proj_destroy(conv);
    8434           2 :     proj_destroy(cs);
    8435           2 :     return OGRERR_NONE;
    8436             : }
    8437             : 
    8438             : /************************************************************************/
    8439             : /*        SetDerivedGeogCRSWithPoleRotationNetCDFCFConvention()         */
    8440             : /************************************************************************/
    8441             : 
    8442           3 : OGRErr OGRSpatialReference::SetDerivedGeogCRSWithPoleRotationNetCDFCFConvention(
    8443             :     const char *pszCRSName, double dfGridNorthPoleLat,
    8444             :     double dfGridNorthPoleLon, double dfNorthPoleGridLon)
    8445             : {
    8446           3 :     TAKE_OPTIONAL_LOCK();
    8447             : 
    8448             : #if PROJ_VERSION_MAJOR > 8 ||                                                  \
    8449             :     (PROJ_VERSION_MAJOR == 8 && PROJ_VERSION_MINOR >= 2)
    8450             :     d->refreshProjObj();
    8451             :     if (!d->m_pj_crs)
    8452             :         return OGRERR_FAILURE;
    8453             :     if (d->m_pjType != PJ_TYPE_GEOGRAPHIC_2D_CRS)
    8454             :         return OGRERR_FAILURE;
    8455             :     auto ctxt = d->getPROJContext();
    8456             :     auto conv = proj_create_conversion_pole_rotation_netcdf_cf_convention(
    8457             :         ctxt, dfGridNorthPoleLat, dfGridNorthPoleLon, dfNorthPoleGridLon,
    8458             :         nullptr, 0);
    8459             :     auto cs = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
    8460             :     d->setPjCRS(proj_create_derived_geographic_crs(ctxt, pszCRSName,
    8461             :                                                    d->m_pj_crs, conv, cs));
    8462             :     proj_destroy(conv);
    8463             :     proj_destroy(cs);
    8464             :     return OGRERR_NONE;
    8465             : #else
    8466             :     (void)pszCRSName;
    8467           3 :     SetProjection("Rotated_pole");
    8468           3 :     SetExtension(
    8469             :         "PROJCS", "PROJ4",
    8470             :         CPLSPrintf("+proj=ob_tran +o_proj=longlat +lon_0=%.17g +o_lon_p=%.17g "
    8471             :                    "+o_lat_p=%.17g +a=%.17g +b=%.17g "
    8472             :                    "+to_meter=0.0174532925199433 "
    8473             :                    "+wktext",
    8474             :                    180.0 + dfGridNorthPoleLon, dfNorthPoleGridLon,
    8475             :                    dfGridNorthPoleLat, GetSemiMajor(nullptr),
    8476             :                    GetSemiMinor(nullptr)));
    8477           6 :     return OGRERR_NONE;
    8478             : #endif
    8479             : }
    8480             : 
    8481             : /************************************************************************/
    8482             : /*                            SetAuthority()                            */
    8483             : /************************************************************************/
    8484             : 
    8485             : /**
    8486             :  * \brief Set the authority for a node.
    8487             :  *
    8488             :  * This method is the same as the C function OSRSetAuthority().
    8489             :  *
    8490             :  * @param pszTargetKey the partial or complete path to the node to
    8491             :  * set an authority on.  i.e. "PROJCS", "GEOGCS" or "GEOGCS|UNIT".
    8492             :  *
    8493             :  * @param pszAuthority authority name, such as "EPSG".
    8494             :  *
    8495             :  * @param nCode code for value with this authority.
    8496             :  *
    8497             :  * @return OGRERR_NONE on success.
    8498             :  */
    8499             : 
    8500       12690 : OGRErr OGRSpatialReference::SetAuthority(const char *pszTargetKey,
    8501             :                                          const char *pszAuthority, int nCode)
    8502             : 
    8503             : {
    8504       25380 :     TAKE_OPTIONAL_LOCK();
    8505             : 
    8506       12690 :     d->refreshProjObj();
    8507       12690 :     pszTargetKey = d->nullifyTargetKeyIfPossible(pszTargetKey);
    8508             : 
    8509       12690 :     if (pszTargetKey == nullptr)
    8510             :     {
    8511         265 :         if (!d->m_pj_crs)
    8512           0 :             return OGRERR_FAILURE;
    8513         265 :         CPLString osCode;
    8514         265 :         osCode.Printf("%d", nCode);
    8515         265 :         d->demoteFromBoundCRS();
    8516         265 :         d->setPjCRS(proj_alter_id(d->getPROJContext(), d->m_pj_crs,
    8517             :                                   pszAuthority, osCode.c_str()));
    8518         265 :         d->undoDemoteFromBoundCRS();
    8519         265 :         return OGRERR_NONE;
    8520             :     }
    8521             : 
    8522       12425 :     d->demoteFromBoundCRS();
    8523       12425 :     if (d->m_pjType == PJ_TYPE_PROJECTED_CRS && EQUAL(pszTargetKey, "GEOGCS"))
    8524             :     {
    8525        4109 :         CPLString osCode;
    8526        4109 :         osCode.Printf("%d", nCode);
    8527             :         auto newGeogCRS =
    8528        4109 :             proj_alter_id(d->getPROJContext(), d->getGeodBaseCRS(),
    8529             :                           pszAuthority, osCode.c_str());
    8530             : 
    8531             :         auto conv =
    8532        4109 :             proj_crs_get_coordoperation(d->getPROJContext(), d->m_pj_crs);
    8533             : 
    8534        4109 :         auto projCRS = proj_create_projected_crs(
    8535             :             d->getPROJContext(), d->getProjCRSName(), newGeogCRS, conv,
    8536        4109 :             d->getProjCRSCoordSys());
    8537             : 
    8538             :         // Preserve existing id on the PROJCRS
    8539        4109 :         const char *pszProjCRSAuthName = proj_get_id_auth_name(d->m_pj_crs, 0);
    8540        4109 :         const char *pszProjCRSCode = proj_get_id_code(d->m_pj_crs, 0);
    8541        4109 :         if (pszProjCRSAuthName && pszProjCRSCode)
    8542             :         {
    8543             :             auto projCRSWithId =
    8544           0 :                 proj_alter_id(d->getPROJContext(), projCRS, pszProjCRSAuthName,
    8545             :                               pszProjCRSCode);
    8546           0 :             proj_destroy(projCRS);
    8547           0 :             projCRS = projCRSWithId;
    8548             :         }
    8549             : 
    8550        4109 :         proj_destroy(newGeogCRS);
    8551        4109 :         proj_destroy(conv);
    8552             : 
    8553        4109 :         d->setPjCRS(projCRS);
    8554        4109 :         d->undoDemoteFromBoundCRS();
    8555        4109 :         return OGRERR_NONE;
    8556             :     }
    8557        8316 :     d->undoDemoteFromBoundCRS();
    8558             : 
    8559             :     /* -------------------------------------------------------------------- */
    8560             :     /*      Find the node below which the authority should be put.          */
    8561             :     /* -------------------------------------------------------------------- */
    8562        8316 :     OGR_SRSNode *poNode = GetAttrNode(pszTargetKey);
    8563             : 
    8564        8316 :     if (poNode == nullptr)
    8565           0 :         return OGRERR_FAILURE;
    8566             : 
    8567             :     /* -------------------------------------------------------------------- */
    8568             :     /*      If there is an existing AUTHORITY child blow it away before     */
    8569             :     /*      trying to set a new one.                                        */
    8570             :     /* -------------------------------------------------------------------- */
    8571        8316 :     int iOldChild = poNode->FindChild("AUTHORITY");
    8572        8316 :     if (iOldChild != -1)
    8573           5 :         poNode->DestroyChild(iOldChild);
    8574             : 
    8575             :     /* -------------------------------------------------------------------- */
    8576             :     /*      Create a new authority node.                                    */
    8577             :     /* -------------------------------------------------------------------- */
    8578        8316 :     char szCode[32] = {};
    8579             : 
    8580        8316 :     snprintf(szCode, sizeof(szCode), "%d", nCode);
    8581             : 
    8582        8316 :     OGR_SRSNode *poAuthNode = new OGR_SRSNode("AUTHORITY");
    8583        8316 :     poAuthNode->AddChild(new OGR_SRSNode(pszAuthority));
    8584        8316 :     poAuthNode->AddChild(new OGR_SRSNode(szCode));
    8585             : 
    8586        8316 :     poNode->AddChild(poAuthNode);
    8587             : 
    8588        8316 :     return OGRERR_NONE;
    8589             : }
    8590             : 
    8591             : /************************************************************************/
    8592             : /*                          OSRSetAuthority()                           */
    8593             : /************************************************************************/
    8594             : 
    8595             : /**
    8596             :  * \brief Set the authority for a node.
    8597             :  *
    8598             :  * This function is the same as OGRSpatialReference::SetAuthority().
    8599             :  */
    8600           0 : OGRErr OSRSetAuthority(OGRSpatialReferenceH hSRS, const char *pszTargetKey,
    8601             :                        const char *pszAuthority, int nCode)
    8602             : 
    8603             : {
    8604           0 :     VALIDATE_POINTER1(hSRS, "OSRSetAuthority", OGRERR_FAILURE);
    8605             : 
    8606           0 :     return ToPointer(hSRS)->SetAuthority(pszTargetKey, pszAuthority, nCode);
    8607             : }
    8608             : 
    8609             : /************************************************************************/
    8610             : /*                          GetAuthorityCode()                          */
    8611             : /************************************************************************/
    8612             : 
    8613             : /**
    8614             :  * \brief Get the authority code for a node.
    8615             :  *
    8616             :  * This method is used to query an AUTHORITY[] node from within the
    8617             :  * WKT tree, and fetch the code value.
    8618             :  *
    8619             :  * While in theory values may be non-numeric, for the EPSG authority all
    8620             :  * code values should be integral.
    8621             :  *
    8622             :  * This method is the same as the C function OSRGetAuthorityCode().
    8623             :  *
    8624             :  * @param pszTargetKey the partial or complete path to the node to
    8625             :  * get an authority from.  i.e. "PROJCS", "GEOGCS", "GEOGCS|UNIT" or NULL to
    8626             :  * search for an authority node on the root element.
    8627             :  *
    8628             :  * @return value code from authority node, or NULL on failure.  The value
    8629             :  * returned is internal and should not be freed or modified.
    8630             :  */
    8631             : 
    8632             : const char *
    8633       50821 : OGRSpatialReference::GetAuthorityCode(const char *pszTargetKey) const
    8634             : 
    8635             : {
    8636      101642 :     TAKE_OPTIONAL_LOCK();
    8637             : 
    8638       50821 :     d->refreshProjObj();
    8639       50821 :     const char *pszInputTargetKey = pszTargetKey;
    8640       50821 :     pszTargetKey = d->nullifyTargetKeyIfPossible(pszTargetKey);
    8641       50821 :     if (pszTargetKey == nullptr)
    8642             :     {
    8643       42506 :         if (!d->m_pj_crs)
    8644             :         {
    8645          17 :             return nullptr;
    8646             :         }
    8647       42489 :         d->demoteFromBoundCRS();
    8648       42489 :         auto ret = proj_get_id_code(d->m_pj_crs, 0);
    8649       42489 :         if (ret == nullptr && d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    8650             :         {
    8651        1389 :             auto ctxt = d->getPROJContext();
    8652        1389 :             auto cs = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
    8653        1389 :             if (cs)
    8654             :             {
    8655        1389 :                 const int axisCount = proj_cs_get_axis_count(ctxt, cs);
    8656        1389 :                 proj_destroy(cs);
    8657        1389 :                 if (axisCount == 3)
    8658             :                 {
    8659             :                     // This might come from a COMPD_CS with a VERT_DATUM type =
    8660             :                     // 2002 in which case, using the WKT1 representation will
    8661             :                     // enable us to recover the EPSG code.
    8662          14 :                     pszTargetKey = pszInputTargetKey;
    8663             :                 }
    8664             :             }
    8665             :         }
    8666       42489 :         d->undoDemoteFromBoundCRS();
    8667       42489 :         if (ret != nullptr || pszTargetKey == nullptr)
    8668             :         {
    8669       42489 :             return ret;
    8670             :         }
    8671             :     }
    8672             : 
    8673             :     // Special key for that context
    8674        8319 :     else if (EQUAL(pszTargetKey, "HORIZCRS") &&
    8675           4 :              d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    8676             :     {
    8677           4 :         auto ctxt = d->getPROJContext();
    8678           4 :         auto crs = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 0);
    8679           4 :         if (crs)
    8680             :         {
    8681           4 :             const char *ret = proj_get_id_code(crs, 0);
    8682           4 :             if (ret)
    8683           4 :                 ret = CPLSPrintf("%s", ret);
    8684           4 :             proj_destroy(crs);
    8685           4 :             return ret;
    8686             :         }
    8687             :     }
    8688        8315 :     else if (EQUAL(pszTargetKey, "VERTCRS") &&
    8689           4 :              d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    8690             :     {
    8691           4 :         auto ctxt = d->getPROJContext();
    8692           4 :         auto crs = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 1);
    8693           4 :         if (crs)
    8694             :         {
    8695           4 :             const char *ret = proj_get_id_code(crs, 0);
    8696           4 :             if (ret)
    8697           4 :                 ret = CPLSPrintf("%s", ret);
    8698           4 :             proj_destroy(crs);
    8699           4 :             return ret;
    8700             :         }
    8701             :     }
    8702             : 
    8703             :     /* -------------------------------------------------------------------- */
    8704             :     /*      Find the node below which the authority should be put.          */
    8705             :     /* -------------------------------------------------------------------- */
    8706        8307 :     const OGR_SRSNode *poNode = GetAttrNode(pszTargetKey);
    8707             : 
    8708        8307 :     if (poNode == nullptr)
    8709         106 :         return nullptr;
    8710             : 
    8711             :     /* -------------------------------------------------------------------- */
    8712             :     /*      Fetch AUTHORITY child if there is one.                          */
    8713             :     /* -------------------------------------------------------------------- */
    8714        8201 :     if (poNode->FindChild("AUTHORITY") == -1)
    8715         197 :         return nullptr;
    8716             : 
    8717        8004 :     poNode = poNode->GetChild(poNode->FindChild("AUTHORITY"));
    8718             : 
    8719             :     /* -------------------------------------------------------------------- */
    8720             :     /*      Create a new authority node.                                    */
    8721             :     /* -------------------------------------------------------------------- */
    8722        8004 :     if (poNode->GetChildCount() < 2)
    8723           0 :         return nullptr;
    8724             : 
    8725        8004 :     return poNode->GetChild(1)->GetValue();
    8726             : }
    8727             : 
    8728             : /************************************************************************/
    8729             : /*                        OSRGetAuthorityCode()                         */
    8730             : /************************************************************************/
    8731             : 
    8732             : /**
    8733             :  * \brief Get the authority code for a node.
    8734             :  *
    8735             :  * This function is the same as OGRSpatialReference::GetAuthorityCode().
    8736             :  */
    8737         799 : const char *OSRGetAuthorityCode(OGRSpatialReferenceH hSRS,
    8738             :                                 const char *pszTargetKey)
    8739             : 
    8740             : {
    8741         799 :     VALIDATE_POINTER1(hSRS, "OSRGetAuthorityCode", nullptr);
    8742             : 
    8743         799 :     return ToPointer(hSRS)->GetAuthorityCode(pszTargetKey);
    8744             : }
    8745             : 
    8746             : /************************************************************************/
    8747             : /*                          GetAuthorityName()                          */
    8748             : /************************************************************************/
    8749             : 
    8750             : /**
    8751             :  * \brief Get the authority name for a node.
    8752             :  *
    8753             :  * This method is used to query an AUTHORITY[] node from within the
    8754             :  * WKT tree, and fetch the authority name value.
    8755             :  *
    8756             :  * The most common authority is "EPSG".
    8757             :  *
    8758             :  * This method is the same as the C function OSRGetAuthorityName().
    8759             :  *
    8760             :  * @param pszTargetKey the partial or complete path to the node to
    8761             :  * get an authority from.  i.e. "PROJCS", "GEOGCS", "GEOGCS|UNIT" or NULL to
    8762             :  * search for an authority node on the root element.
    8763             :  *
    8764             :  * @return value code from authority node, or NULL on failure. The value
    8765             :  * returned is internal and should not be freed or modified.
    8766             :  */
    8767             : 
    8768             : const char *
    8769       64550 : OGRSpatialReference::GetAuthorityName(const char *pszTargetKey) const
    8770             : 
    8771             : {
    8772      129100 :     TAKE_OPTIONAL_LOCK();
    8773             : 
    8774       64550 :     d->refreshProjObj();
    8775       64550 :     const char *pszInputTargetKey = pszTargetKey;
    8776       64550 :     pszTargetKey = d->nullifyTargetKeyIfPossible(pszTargetKey);
    8777       64550 :     if (pszTargetKey == nullptr)
    8778             :     {
    8779       35640 :         if (!d->m_pj_crs)
    8780             :         {
    8781          18 :             return nullptr;
    8782             :         }
    8783       35622 :         d->demoteFromBoundCRS();
    8784       35622 :         auto ret = proj_get_id_auth_name(d->m_pj_crs, 0);
    8785       35622 :         if (ret == nullptr && d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    8786             :         {
    8787        1011 :             auto ctxt = d->getPROJContext();
    8788        1011 :             auto cs = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
    8789        1011 :             if (cs)
    8790             :             {
    8791        1011 :                 const int axisCount = proj_cs_get_axis_count(ctxt, cs);
    8792        1011 :                 proj_destroy(cs);
    8793        1011 :                 if (axisCount == 3)
    8794             :                 {
    8795             :                     // This might come from a COMPD_CS with a VERT_DATUM type =
    8796             :                     // 2002 in which case, using the WKT1 representation will
    8797             :                     // enable us to recover the EPSG code.
    8798          14 :                     pszTargetKey = pszInputTargetKey;
    8799             :                 }
    8800             :             }
    8801             :         }
    8802       35622 :         d->undoDemoteFromBoundCRS();
    8803       35622 :         if (ret != nullptr || pszTargetKey == nullptr)
    8804             :         {
    8805       35622 :             return ret;
    8806             :         }
    8807             :     }
    8808             : 
    8809             :     // Special key for that context
    8810       28914 :     else if (EQUAL(pszTargetKey, "HORIZCRS") &&
    8811           4 :              d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    8812             :     {
    8813           4 :         auto ctxt = d->getPROJContext();
    8814           4 :         auto crs = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 0);
    8815           4 :         if (crs)
    8816             :         {
    8817           4 :             const char *ret = proj_get_id_auth_name(crs, 0);
    8818           4 :             if (ret)
    8819           4 :                 ret = CPLSPrintf("%s", ret);
    8820           4 :             proj_destroy(crs);
    8821           4 :             return ret;
    8822             :         }
    8823             :     }
    8824       28910 :     else if (EQUAL(pszTargetKey, "VERTCRS") &&
    8825           4 :              d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    8826             :     {
    8827           4 :         auto ctxt = d->getPROJContext();
    8828           4 :         auto crs = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 1);
    8829           4 :         if (crs)
    8830             :         {
    8831           4 :             const char *ret = proj_get_id_auth_name(crs, 0);
    8832           4 :             if (ret)
    8833           4 :                 ret = CPLSPrintf("%s", ret);
    8834           4 :             proj_destroy(crs);
    8835           4 :             return ret;
    8836             :         }
    8837             :     }
    8838             : 
    8839             :     /* -------------------------------------------------------------------- */
    8840             :     /*      Find the node below which the authority should be put.          */
    8841             :     /* -------------------------------------------------------------------- */
    8842       28902 :     const OGR_SRSNode *poNode = GetAttrNode(pszTargetKey);
    8843             : 
    8844       28902 :     if (poNode == nullptr)
    8845       11910 :         return nullptr;
    8846             : 
    8847             :     /* -------------------------------------------------------------------- */
    8848             :     /*      Fetch AUTHORITY child if there is one.                          */
    8849             :     /* -------------------------------------------------------------------- */
    8850       16992 :     if (poNode->FindChild("AUTHORITY") == -1)
    8851        1595 :         return nullptr;
    8852             : 
    8853       15397 :     poNode = poNode->GetChild(poNode->FindChild("AUTHORITY"));
    8854             : 
    8855             :     /* -------------------------------------------------------------------- */
    8856             :     /*      Create a new authority node.                                    */
    8857             :     /* -------------------------------------------------------------------- */
    8858       15397 :     if (poNode->GetChildCount() < 2)
    8859           0 :         return nullptr;
    8860             : 
    8861       15397 :     return poNode->GetChild(0)->GetValue();
    8862             : }
    8863             : 
    8864             : /************************************************************************/
    8865             : /*                        OSRGetAuthorityName()                         */
    8866             : /************************************************************************/
    8867             : 
    8868             : /**
    8869             :  * \brief Get the authority name for a node.
    8870             :  *
    8871             :  * This function is the same as OGRSpatialReference::GetAuthorityName().
    8872             :  */
    8873          94 : const char *OSRGetAuthorityName(OGRSpatialReferenceH hSRS,
    8874             :                                 const char *pszTargetKey)
    8875             : 
    8876             : {
    8877          94 :     VALIDATE_POINTER1(hSRS, "OSRGetAuthorityName", nullptr);
    8878             : 
    8879          94 :     return ToPointer(hSRS)->GetAuthorityName(pszTargetKey);
    8880             : }
    8881             : 
    8882             : /************************************************************************/
    8883             : /*                             GetOGCURN()                              */
    8884             : /************************************************************************/
    8885             : 
    8886             : /**
    8887             :  * \brief Get a OGC URN string describing the CRS, when possible
    8888             :  *
    8889             :  * This method assumes that the CRS has a top-level identifier, or is
    8890             :  * a compound CRS whose horizontal and vertical parts have a top-level
    8891             :  * identifier.
    8892             :  *
    8893             :  * @return a string to free with CPLFree(), or nullptr when no result can be
    8894             :  * generated
    8895             :  *
    8896             :  * @since GDAL 3.5
    8897             :  */
    8898             : 
    8899          62 : char *OGRSpatialReference::GetOGCURN() const
    8900             : 
    8901             : {
    8902         124 :     TAKE_OPTIONAL_LOCK();
    8903             : 
    8904          62 :     const char *pszAuthName = GetAuthorityName(nullptr);
    8905          62 :     const char *pszAuthCode = GetAuthorityCode(nullptr);
    8906          62 :     if (pszAuthName && pszAuthCode)
    8907          59 :         return CPLStrdup(
    8908          59 :             CPLSPrintf("urn:ogc:def:crs:%s::%s", pszAuthName, pszAuthCode));
    8909           3 :     if (d->m_pjType != PJ_TYPE_COMPOUND_CRS)
    8910           2 :         return nullptr;
    8911           1 :     auto horizCRS = proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 0);
    8912           1 :     auto vertCRS = proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 1);
    8913           1 :     char *pszRet = nullptr;
    8914           1 :     if (horizCRS && vertCRS)
    8915             :     {
    8916           1 :         auto horizAuthName = proj_get_id_auth_name(horizCRS, 0);
    8917           1 :         auto horizAuthCode = proj_get_id_code(horizCRS, 0);
    8918           1 :         auto vertAuthName = proj_get_id_auth_name(vertCRS, 0);
    8919           1 :         auto vertAuthCode = proj_get_id_code(vertCRS, 0);
    8920           1 :         if (horizAuthName && horizAuthCode && vertAuthName && vertAuthCode)
    8921             :         {
    8922           1 :             pszRet = CPLStrdup(CPLSPrintf(
    8923             :                 "urn:ogc:def:crs,crs:%s::%s,crs:%s::%s", horizAuthName,
    8924             :                 horizAuthCode, vertAuthName, vertAuthCode));
    8925             :         }
    8926             :     }
    8927           1 :     proj_destroy(horizCRS);
    8928           1 :     proj_destroy(vertCRS);
    8929           1 :     return pszRet;
    8930             : }
    8931             : 
    8932             : /************************************************************************/
    8933             : /*                           StripVertical()                            */
    8934             : /************************************************************************/
    8935             : 
    8936             : /**
    8937             :  * \brief Convert a compound cs into a horizontal CS.
    8938             :  *
    8939             :  * If this SRS is of type COMPD_CS[] then the vertical CS and the root COMPD_CS
    8940             :  * nodes are stripped resulting and only the horizontal coordinate system
    8941             :  * portion remains (normally PROJCS, GEOGCS or LOCAL_CS).
    8942             :  *
    8943             :  * If this is not a compound coordinate system then nothing is changed.
    8944             :  *
    8945             :  * This method is the same as the C function OSRStripVertical().
    8946             :  *
    8947             :  */
    8948             : 
    8949          46 : OGRErr OGRSpatialReference::StripVertical()
    8950             : 
    8951             : {
    8952          92 :     TAKE_OPTIONAL_LOCK();
    8953             : 
    8954          46 :     d->refreshProjObj();
    8955          46 :     d->demoteFromBoundCRS();
    8956          46 :     if (!d->m_pj_crs || d->m_pjType != PJ_TYPE_COMPOUND_CRS)
    8957             :     {
    8958           0 :         d->undoDemoteFromBoundCRS();
    8959           0 :         return OGRERR_NONE;
    8960             :     }
    8961          46 :     auto horizCRS = proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 0);
    8962          46 :     if (!horizCRS)
    8963             :     {
    8964           0 :         d->undoDemoteFromBoundCRS();
    8965           0 :         return OGRERR_FAILURE;
    8966             :     }
    8967             : 
    8968          46 :     bool reuseExistingBoundCRS = false;
    8969          46 :     if (d->m_pj_bound_crs_target)
    8970             :     {
    8971           4 :         auto type = proj_get_type(d->m_pj_bound_crs_target);
    8972           8 :         reuseExistingBoundCRS = type == PJ_TYPE_GEOCENTRIC_CRS ||
    8973           8 :                                 type == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    8974             :                                 type == PJ_TYPE_GEOGRAPHIC_3D_CRS;
    8975             :     }
    8976             : 
    8977          46 :     if (reuseExistingBoundCRS)
    8978             :     {
    8979           4 :         auto newBoundCRS = proj_crs_create_bound_crs(
    8980           4 :             d->getPROJContext(), horizCRS, d->m_pj_bound_crs_target,
    8981           4 :             d->m_pj_bound_crs_co);
    8982           4 :         proj_destroy(horizCRS);
    8983           4 :         d->undoDemoteFromBoundCRS();
    8984           4 :         d->setPjCRS(newBoundCRS);
    8985             :     }
    8986             :     else
    8987             :     {
    8988          42 :         d->undoDemoteFromBoundCRS();
    8989          42 :         d->setPjCRS(horizCRS);
    8990             :     }
    8991             : 
    8992          46 :     return OGRERR_NONE;
    8993             : }
    8994             : 
    8995             : /************************************************************************/
    8996             : /*                          OSRStripVertical()                          */
    8997             : /************************************************************************/
    8998             : /**
    8999             :  * \brief Convert a compound cs into a horizontal CS.
    9000             :  *
    9001             :  * This function is the same as the C++ method
    9002             :  * OGRSpatialReference::StripVertical().
    9003             :  */
    9004           1 : OGRErr OSRStripVertical(OGRSpatialReferenceH hSRS)
    9005             : 
    9006             : {
    9007           1 :     VALIDATE_POINTER1(hSRS, "OSRStripVertical", OGRERR_FAILURE);
    9008             : 
    9009           1 :     return OGRSpatialReference::FromHandle(hSRS)->StripVertical();
    9010             : }
    9011             : 
    9012             : /************************************************************************/
    9013             : /*                 StripTOWGS84IfKnownDatumAndAllowed()                 */
    9014             : /************************************************************************/
    9015             : 
    9016             : /**
    9017             :  * \brief Remove TOWGS84 information if the CRS has a known horizontal datum
    9018             :  *        and this is allowed by the user.
    9019             :  *
    9020             :  * The default behavior is to remove TOWGS84 information if the CRS has a
    9021             :  * known horizontal datum. This can be disabled by setting the
    9022             :  * OSR_STRIP_TOWGS84 configuration option to NO.
    9023             :  *
    9024             :  * @return true if TOWGS84 has been removed.
    9025             :  * @since OGR 3.1.0
    9026             :  */
    9027             : 
    9028        9514 : bool OGRSpatialReference::StripTOWGS84IfKnownDatumAndAllowed()
    9029             : {
    9030        9514 :     if (CPLTestBool(CPLGetConfigOption("OSR_STRIP_TOWGS84", "YES")))
    9031             :     {
    9032        9511 :         if (StripTOWGS84IfKnownDatum())
    9033             :         {
    9034          72 :             CPLDebug("OSR", "TOWGS84 information has been removed. "
    9035             :                             "It can be kept by setting the OSR_STRIP_TOWGS84 "
    9036             :                             "configuration option to NO");
    9037          72 :             return true;
    9038             :         }
    9039             :     }
    9040        9442 :     return false;
    9041             : }
    9042             : 
    9043             : /************************************************************************/
    9044             : /*                      StripTOWGS84IfKnownDatum()                      */
    9045             : /************************************************************************/
    9046             : 
    9047             : /**
    9048             :  * \brief Remove TOWGS84 information if the CRS has a known horizontal datum
    9049             :  *
    9050             :  * @return true if TOWGS84 has been removed.
    9051             :  * @since OGR 3.1.0
    9052             :  */
    9053             : 
    9054        9517 : bool OGRSpatialReference::StripTOWGS84IfKnownDatum()
    9055             : 
    9056             : {
    9057       19034 :     TAKE_OPTIONAL_LOCK();
    9058             : 
    9059        9517 :     d->refreshProjObj();
    9060        9517 :     if (!d->m_pj_crs || d->m_pjType != PJ_TYPE_BOUND_CRS)
    9061             :     {
    9062        9425 :         return false;
    9063             :     }
    9064          92 :     auto ctxt = d->getPROJContext();
    9065          92 :     auto baseCRS = proj_get_source_crs(ctxt, d->m_pj_crs);
    9066          92 :     if (proj_get_type(baseCRS) == PJ_TYPE_COMPOUND_CRS)
    9067             :     {
    9068           3 :         proj_destroy(baseCRS);
    9069           3 :         return false;
    9070             :     }
    9071             : 
    9072             :     // Known base CRS code ? Return base CRS
    9073          89 :     const char *pszCode = proj_get_id_code(baseCRS, 0);
    9074          89 :     if (pszCode)
    9075             :     {
    9076           2 :         d->setPjCRS(baseCRS);
    9077           2 :         return true;
    9078             :     }
    9079             : 
    9080          87 :     auto datum = proj_crs_get_datum(ctxt, baseCRS);
    9081             : #if PROJ_VERSION_MAJOR > 7 ||                                                  \
    9082             :     (PROJ_VERSION_MAJOR == 7 && PROJ_VERSION_MINOR >= 2)
    9083             :     if (datum == nullptr)
    9084             :     {
    9085             :         datum = proj_crs_get_datum_ensemble(ctxt, baseCRS);
    9086             :     }
    9087             : #endif
    9088          87 :     if (!datum)
    9089             :     {
    9090           0 :         proj_destroy(baseCRS);
    9091           0 :         return false;
    9092             :     }
    9093             : 
    9094             :     // Known datum code ? Return base CRS
    9095          87 :     pszCode = proj_get_id_code(datum, 0);
    9096          87 :     if (pszCode)
    9097             :     {
    9098           3 :         proj_destroy(datum);
    9099           3 :         d->setPjCRS(baseCRS);
    9100           3 :         return true;
    9101             :     }
    9102             : 
    9103          84 :     const char *name = proj_get_name(datum);
    9104          84 :     if (EQUAL(name, "unknown"))
    9105             :     {
    9106           1 :         proj_destroy(datum);
    9107           1 :         proj_destroy(baseCRS);
    9108           1 :         return false;
    9109             :     }
    9110          83 :     const PJ_TYPE type = PJ_TYPE_GEODETIC_REFERENCE_FRAME;
    9111             :     PJ_OBJ_LIST *list =
    9112          83 :         proj_create_from_name(ctxt, nullptr, name, &type, 1, false, 1, nullptr);
    9113             : 
    9114          83 :     bool knownDatumName = false;
    9115          83 :     if (list)
    9116             :     {
    9117          83 :         if (proj_list_get_count(list) == 1)
    9118             :         {
    9119          70 :             knownDatumName = true;
    9120             :         }
    9121          83 :         proj_list_destroy(list);
    9122             :     }
    9123             : 
    9124          83 :     proj_destroy(datum);
    9125          83 :     if (knownDatumName)
    9126             :     {
    9127          70 :         d->setPjCRS(baseCRS);
    9128          70 :         return true;
    9129             :     }
    9130          13 :     proj_destroy(baseCRS);
    9131          13 :     return false;
    9132             : }
    9133             : 
    9134             : /************************************************************************/
    9135             : /*                             IsCompound()                             */
    9136             : /************************************************************************/
    9137             : 
    9138             : /**
    9139             :  * \brief Check if coordinate system is compound.
    9140             :  *
    9141             :  * This method is the same as the C function OSRIsCompound().
    9142             :  *
    9143             :  * @return TRUE if this is rooted with a COMPD_CS node.
    9144             :  */
    9145             : 
    9146       42166 : int OGRSpatialReference::IsCompound() const
    9147             : 
    9148             : {
    9149       42166 :     TAKE_OPTIONAL_LOCK();
    9150             : 
    9151       42166 :     d->refreshProjObj();
    9152       42166 :     d->demoteFromBoundCRS();
    9153       42166 :     bool isCompound = d->m_pjType == PJ_TYPE_COMPOUND_CRS;
    9154       42166 :     d->undoDemoteFromBoundCRS();
    9155       84332 :     return isCompound;
    9156             : }
    9157             : 
    9158             : /************************************************************************/
    9159             : /*                           OSRIsCompound()                            */
    9160             : /************************************************************************/
    9161             : 
    9162             : /**
    9163             :  * \brief Check if the coordinate system is compound.
    9164             :  *
    9165             :  * This function is the same as OGRSpatialReference::IsCompound().
    9166             :  */
    9167           5 : int OSRIsCompound(OGRSpatialReferenceH hSRS)
    9168             : 
    9169             : {
    9170           5 :     VALIDATE_POINTER1(hSRS, "OSRIsCompound", 0);
    9171             : 
    9172           5 :     return ToPointer(hSRS)->IsCompound();
    9173             : }
    9174             : 
    9175             : /************************************************************************/
    9176             : /*                            IsProjected()                             */
    9177             : /************************************************************************/
    9178             : 
    9179             : /**
    9180             :  * \brief Check if projected coordinate system.
    9181             :  *
    9182             :  * This method is the same as the C function OSRIsProjected().
    9183             :  *
    9184             :  * @return TRUE if this contains a PROJCS node indicating a it is a
    9185             :  * projected coordinate system. Also if it is a CompoundCRS made of a
    9186             :  * ProjectedCRS
    9187             :  */
    9188             : 
    9189       45492 : int OGRSpatialReference::IsProjected() const
    9190             : 
    9191             : {
    9192       45492 :     TAKE_OPTIONAL_LOCK();
    9193             : 
    9194       45492 :     d->refreshProjObj();
    9195       45492 :     d->demoteFromBoundCRS();
    9196       45492 :     bool isProjected = d->m_pjType == PJ_TYPE_PROJECTED_CRS;
    9197       45492 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    9198             :     {
    9199             :         auto horizCRS =
    9200         150 :             proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 0);
    9201         150 :         if (horizCRS)
    9202             :         {
    9203         150 :             auto horizCRSType = proj_get_type(horizCRS);
    9204         150 :             isProjected = horizCRSType == PJ_TYPE_PROJECTED_CRS;
    9205         150 :             if (horizCRSType == PJ_TYPE_BOUND_CRS)
    9206             :             {
    9207           6 :                 auto base = proj_get_source_crs(d->getPROJContext(), horizCRS);
    9208           6 :                 if (base)
    9209             :                 {
    9210           6 :                     isProjected = proj_get_type(base) == PJ_TYPE_PROJECTED_CRS;
    9211           6 :                     proj_destroy(base);
    9212             :                 }
    9213             :             }
    9214         150 :             proj_destroy(horizCRS);
    9215             :         }
    9216             :     }
    9217       45492 :     d->undoDemoteFromBoundCRS();
    9218       90984 :     return isProjected;
    9219             : }
    9220             : 
    9221             : /************************************************************************/
    9222             : /*                           OSRIsProjected()                           */
    9223             : /************************************************************************/
    9224             : /**
    9225             :  * \brief Check if projected coordinate system.
    9226             :  *
    9227             :  * This function is the same as OGRSpatialReference::IsProjected().
    9228             :  */
    9229         441 : int OSRIsProjected(OGRSpatialReferenceH hSRS)
    9230             : 
    9231             : {
    9232         441 :     VALIDATE_POINTER1(hSRS, "OSRIsProjected", 0);
    9233             : 
    9234         441 :     return ToPointer(hSRS)->IsProjected();
    9235             : }
    9236             : 
    9237             : /************************************************************************/
    9238             : /*                            IsGeocentric()                            */
    9239             : /************************************************************************/
    9240             : 
    9241             : /**
    9242             :  * \brief Check if geocentric coordinate system.
    9243             :  *
    9244             :  * This method is the same as the C function OSRIsGeocentric().
    9245             :  *
    9246             :  * @return TRUE if this contains a GEOCCS node indicating a it is a
    9247             :  * geocentric coordinate system.
    9248             :  *
    9249             :  */
    9250             : 
    9251       17747 : int OGRSpatialReference::IsGeocentric() const
    9252             : 
    9253             : {
    9254       17747 :     TAKE_OPTIONAL_LOCK();
    9255             : 
    9256       17747 :     d->refreshProjObj();
    9257       17747 :     d->demoteFromBoundCRS();
    9258       17747 :     bool isGeocentric = d->m_pjType == PJ_TYPE_GEOCENTRIC_CRS;
    9259       17747 :     d->undoDemoteFromBoundCRS();
    9260       35494 :     return isGeocentric;
    9261             : }
    9262             : 
    9263             : /************************************************************************/
    9264             : /*                          OSRIsGeocentric()                           */
    9265             : /************************************************************************/
    9266             : /**
    9267             :  * \brief Check if geocentric coordinate system.
    9268             :  *
    9269             :  * This function is the same as OGRSpatialReference::IsGeocentric().
    9270             :  *
    9271             :  */
    9272           2 : int OSRIsGeocentric(OGRSpatialReferenceH hSRS)
    9273             : 
    9274             : {
    9275           2 :     VALIDATE_POINTER1(hSRS, "OSRIsGeocentric", 0);
    9276             : 
    9277           2 :     return ToPointer(hSRS)->IsGeocentric();
    9278             : }
    9279             : 
    9280             : /************************************************************************/
    9281             : /*                              IsEmpty()                               */
    9282             : /************************************************************************/
    9283             : 
    9284             : /**
    9285             :  * \brief Return if the SRS is not set.
    9286             :  */
    9287             : 
    9288      118647 : bool OGRSpatialReference::IsEmpty() const
    9289             : {
    9290      118647 :     TAKE_OPTIONAL_LOCK();
    9291             : 
    9292      118647 :     d->refreshProjObj();
    9293      237294 :     return d->m_pj_crs == nullptr;
    9294             : }
    9295             : 
    9296             : /************************************************************************/
    9297             : /*                            IsGeographic()                            */
    9298             : /************************************************************************/
    9299             : 
    9300             : /**
    9301             :  * \brief Check if geographic coordinate system.
    9302             :  *
    9303             :  * This method is the same as the C function OSRIsGeographic().
    9304             :  *
    9305             :  * @return TRUE if this spatial reference is geographic ... that is the
    9306             :  * root is a GEOGCS node. Also if it is a CompoundCRS made of a
    9307             :  * GeographicCRS
    9308             :  */
    9309             : 
    9310       62716 : int OGRSpatialReference::IsGeographic() const
    9311             : 
    9312             : {
    9313       62716 :     TAKE_OPTIONAL_LOCK();
    9314             : 
    9315       62716 :     d->refreshProjObj();
    9316       62716 :     d->demoteFromBoundCRS();
    9317       87872 :     bool isGeog = d->m_pjType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    9318       25156 :                   d->m_pjType == PJ_TYPE_GEOGRAPHIC_3D_CRS;
    9319       62716 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    9320             :     {
    9321             :         auto horizCRS =
    9322         300 :             proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 0);
    9323         300 :         if (horizCRS)
    9324             :         {
    9325         300 :             auto horizCRSType = proj_get_type(horizCRS);
    9326         300 :             isGeog = horizCRSType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    9327             :                      horizCRSType == PJ_TYPE_GEOGRAPHIC_3D_CRS;
    9328         300 :             if (horizCRSType == PJ_TYPE_BOUND_CRS)
    9329             :             {
    9330          13 :                 auto base = proj_get_source_crs(d->getPROJContext(), horizCRS);
    9331          13 :                 if (base)
    9332             :                 {
    9333          13 :                     horizCRSType = proj_get_type(base);
    9334          13 :                     isGeog = horizCRSType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    9335             :                              horizCRSType == PJ_TYPE_GEOGRAPHIC_3D_CRS;
    9336          13 :                     proj_destroy(base);
    9337             :                 }
    9338             :             }
    9339         300 :             proj_destroy(horizCRS);
    9340             :         }
    9341             :     }
    9342       62716 :     d->undoDemoteFromBoundCRS();
    9343      125432 :     return isGeog;
    9344             : }
    9345             : 
    9346             : /************************************************************************/
    9347             : /*                          OSRIsGeographic()                           */
    9348             : /************************************************************************/
    9349             : /**
    9350             :  * \brief Check if geographic coordinate system.
    9351             :  *
    9352             :  * This function is the same as OGRSpatialReference::IsGeographic().
    9353             :  */
    9354         286 : int OSRIsGeographic(OGRSpatialReferenceH hSRS)
    9355             : 
    9356             : {
    9357         286 :     VALIDATE_POINTER1(hSRS, "OSRIsGeographic", 0);
    9358             : 
    9359         286 :     return ToPointer(hSRS)->IsGeographic();
    9360             : }
    9361             : 
    9362             : /************************************************************************/
    9363             : /*                        IsDerivedGeographic()                         */
    9364             : /************************************************************************/
    9365             : 
    9366             : /**
    9367             :  * \brief Check if the CRS is a derived geographic coordinate system.
    9368             :  * (for example a rotated long/lat grid)
    9369             :  *
    9370             :  * This method is the same as the C function OSRIsDerivedGeographic().
    9371             :  *
    9372             :  * @since GDAL 3.1.0 and PROJ 6.3.0
    9373             :  */
    9374             : 
    9375       15527 : int OGRSpatialReference::IsDerivedGeographic() const
    9376             : 
    9377             : {
    9378       15527 :     TAKE_OPTIONAL_LOCK();
    9379             : 
    9380       15527 :     d->refreshProjObj();
    9381       15527 :     d->demoteFromBoundCRS();
    9382       25335 :     const bool isGeog = d->m_pjType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    9383        9808 :                         d->m_pjType == PJ_TYPE_GEOGRAPHIC_3D_CRS;
    9384             :     const bool isDerivedGeographic =
    9385       15527 :         isGeog && proj_is_derived_crs(d->getPROJContext(), d->m_pj_crs);
    9386       15527 :     d->undoDemoteFromBoundCRS();
    9387       31054 :     return isDerivedGeographic ? TRUE : FALSE;
    9388             : }
    9389             : 
    9390             : /************************************************************************/
    9391             : /*                       OSRIsDerivedGeographic()                       */
    9392             : /************************************************************************/
    9393             : /**
    9394             :  * \brief Check if the CRS is a derived geographic coordinate system.
    9395             :  * (for example a rotated long/lat grid)
    9396             :  *
    9397             :  * This function is the same as OGRSpatialReference::IsDerivedGeographic().
    9398             :  */
    9399           1 : int OSRIsDerivedGeographic(OGRSpatialReferenceH hSRS)
    9400             : 
    9401             : {
    9402           1 :     VALIDATE_POINTER1(hSRS, "OSRIsDerivedGeographic", 0);
    9403             : 
    9404           1 :     return ToPointer(hSRS)->IsDerivedGeographic();
    9405             : }
    9406             : 
    9407             : /************************************************************************/
    9408             : /*                         IsDerivedProjected()                         */
    9409             : /************************************************************************/
    9410             : 
    9411             : /**
    9412             :  * \brief Check if the CRS is a derived projected coordinate system.
    9413             :  *
    9414             :  * This method is the same as the C function OSRIsDerivedGeographic().
    9415             :  *
    9416             :  * @since GDAL 3.9.0 (and may only return non-zero starting with PROJ 9.2.0)
    9417             :  */
    9418             : 
    9419           0 : int OGRSpatialReference::IsDerivedProjected() const
    9420             : 
    9421             : {
    9422             : #if PROJ_AT_LEAST_VERSION(9, 2, 0)
    9423             :     TAKE_OPTIONAL_LOCK();
    9424             :     d->refreshProjObj();
    9425             :     d->demoteFromBoundCRS();
    9426             :     const bool isDerivedProjected =
    9427             :         d->m_pjType == PJ_TYPE_DERIVED_PROJECTED_CRS;
    9428             :     d->undoDemoteFromBoundCRS();
    9429             :     return isDerivedProjected ? TRUE : FALSE;
    9430             : #else
    9431           0 :     return FALSE;
    9432             : #endif
    9433             : }
    9434             : 
    9435             : /************************************************************************/
    9436             : /*                       OSRIsDerivedProjected()                        */
    9437             : /************************************************************************/
    9438             : /**
    9439             :  * \brief Check if the CRS is a derived projected coordinate system.
    9440             :  *
    9441             :  * This function is the same as OGRSpatialReference::IsDerivedProjected().
    9442             :  *
    9443             :  * @since GDAL 3.9.0 (and may only return non-zero starting with PROJ 9.2.0)
    9444             :  */
    9445           0 : int OSRIsDerivedProjected(OGRSpatialReferenceH hSRS)
    9446             : 
    9447             : {
    9448           0 :     VALIDATE_POINTER1(hSRS, "OSRIsDerivedProjected", 0);
    9449             : 
    9450           0 :     return ToPointer(hSRS)->IsDerivedProjected();
    9451             : }
    9452             : 
    9453             : /************************************************************************/
    9454             : /*                              IsLocal()                               */
    9455             : /************************************************************************/
    9456             : 
    9457             : /**
    9458             :  * \brief Check if local coordinate system.
    9459             :  *
    9460             :  * This method is the same as the C function OSRIsLocal().
    9461             :  *
    9462             :  * @return TRUE if this spatial reference is local ... that is the
    9463             :  * root is a LOCAL_CS node.
    9464             :  */
    9465             : 
    9466        8173 : int OGRSpatialReference::IsLocal() const
    9467             : 
    9468             : {
    9469        8173 :     TAKE_OPTIONAL_LOCK();
    9470        8173 :     d->refreshProjObj();
    9471       16346 :     return d->m_pjType == PJ_TYPE_ENGINEERING_CRS;
    9472             : }
    9473             : 
    9474             : /************************************************************************/
    9475             : /*                             OSRIsLocal()                             */
    9476             : /************************************************************************/
    9477             : /**
    9478             :  * \brief Check if local coordinate system.
    9479             :  *
    9480             :  * This function is the same as OGRSpatialReference::IsLocal().
    9481             :  */
    9482           8 : int OSRIsLocal(OGRSpatialReferenceH hSRS)
    9483             : 
    9484             : {
    9485           8 :     VALIDATE_POINTER1(hSRS, "OSRIsLocal", 0);
    9486             : 
    9487           8 :     return ToPointer(hSRS)->IsLocal();
    9488             : }
    9489             : 
    9490             : /************************************************************************/
    9491             : /*                             IsVertical()                             */
    9492             : /************************************************************************/
    9493             : 
    9494             : /**
    9495             :  * \brief Check if vertical coordinate system.
    9496             :  *
    9497             :  * This method is the same as the C function OSRIsVertical().
    9498             :  *
    9499             :  * @return TRUE if this contains a VERT_CS node indicating a it is a
    9500             :  * vertical coordinate system. Also if it is a CompoundCRS made of a
    9501             :  * VerticalCRS
    9502             :  *
    9503             :  */
    9504             : 
    9505        9048 : int OGRSpatialReference::IsVertical() const
    9506             : 
    9507             : {
    9508        9048 :     TAKE_OPTIONAL_LOCK();
    9509        9048 :     d->refreshProjObj();
    9510        9048 :     d->demoteFromBoundCRS();
    9511        9048 :     bool isVertical = d->m_pjType == PJ_TYPE_VERTICAL_CRS;
    9512        9048 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    9513             :     {
    9514             :         auto vertCRS =
    9515          33 :             proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 1);
    9516          33 :         if (vertCRS)
    9517             :         {
    9518          33 :             const auto vertCRSType = proj_get_type(vertCRS);
    9519          33 :             isVertical = vertCRSType == PJ_TYPE_VERTICAL_CRS;
    9520          33 :             if (vertCRSType == PJ_TYPE_BOUND_CRS)
    9521             :             {
    9522           0 :                 auto base = proj_get_source_crs(d->getPROJContext(), vertCRS);
    9523           0 :                 if (base)
    9524             :                 {
    9525           0 :                     isVertical = proj_get_type(base) == PJ_TYPE_VERTICAL_CRS;
    9526           0 :                     proj_destroy(base);
    9527             :                 }
    9528             :             }
    9529          33 :             proj_destroy(vertCRS);
    9530             :         }
    9531             :     }
    9532        9048 :     d->undoDemoteFromBoundCRS();
    9533       18096 :     return isVertical;
    9534             : }
    9535             : 
    9536             : /************************************************************************/
    9537             : /*                           OSRIsVertical()                            */
    9538             : /************************************************************************/
    9539             : /**
    9540             :  * \brief Check if vertical coordinate system.
    9541             :  *
    9542             :  * This function is the same as OGRSpatialReference::IsVertical().
    9543             :  *
    9544             :  */
    9545           0 : int OSRIsVertical(OGRSpatialReferenceH hSRS)
    9546             : 
    9547             : {
    9548           0 :     VALIDATE_POINTER1(hSRS, "OSRIsVertical", 0);
    9549             : 
    9550           0 :     return ToPointer(hSRS)->IsVertical();
    9551             : }
    9552             : 
    9553             : /************************************************************************/
    9554             : /*                             IsDynamic()                              */
    9555             : /************************************************************************/
    9556             : 
    9557             : /**
    9558             :  * \brief Check if a CRS is a dynamic CRS.
    9559             :  *
    9560             :  * A dynamic CRS relies on a dynamic datum, that is a datum that is not
    9561             :  * plate-fixed.
    9562             :  *
    9563             :  * This method is the same as the C function OSRIsDynamic().
    9564             :  *
    9565             :  * @return true if the CRS is dynamic
    9566             :  *
    9567             :  * @since OGR 3.4.0
    9568             :  *
    9569             :  * @see HasPointMotionOperation()
    9570             :  */
    9571             : 
    9572       16759 : bool OGRSpatialReference::IsDynamic() const
    9573             : 
    9574             : {
    9575       16759 :     TAKE_OPTIONAL_LOCK();
    9576       16759 :     bool isDynamic = false;
    9577       16759 :     d->refreshProjObj();
    9578       16759 :     d->demoteFromBoundCRS();
    9579       16759 :     auto ctxt = d->getPROJContext();
    9580       16759 :     PJ *horiz = nullptr;
    9581       16759 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    9582             :     {
    9583          96 :         horiz = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 0);
    9584             :     }
    9585       16663 :     else if (d->m_pj_crs)
    9586             :     {
    9587       16469 :         horiz = proj_clone(ctxt, d->m_pj_crs);
    9588             :     }
    9589       16759 :     if (horiz && proj_get_type(horiz) == PJ_TYPE_BOUND_CRS)
    9590             :     {
    9591           6 :         auto baseCRS = proj_get_source_crs(ctxt, horiz);
    9592           6 :         if (baseCRS)
    9593             :         {
    9594           6 :             proj_destroy(horiz);
    9595           6 :             horiz = baseCRS;
    9596             :         }
    9597             :     }
    9598       16759 :     auto datum = horiz ? proj_crs_get_datum(ctxt, horiz) : nullptr;
    9599       16759 :     if (datum)
    9600             :     {
    9601       16530 :         const auto type = proj_get_type(datum);
    9602       16530 :         isDynamic = type == PJ_TYPE_DYNAMIC_GEODETIC_REFERENCE_FRAME ||
    9603             :                     type == PJ_TYPE_DYNAMIC_VERTICAL_REFERENCE_FRAME;
    9604       16530 :         if (!isDynamic)
    9605             :         {
    9606       16530 :             const char *auth_name = proj_get_id_auth_name(datum, 0);
    9607       16530 :             const char *code = proj_get_id_code(datum, 0);
    9608       16530 :             if (auth_name && code && EQUAL(auth_name, "EPSG") &&
    9609       16012 :                 EQUAL(code, "6326"))
    9610             :             {
    9611       10457 :                 isDynamic = true;
    9612             :             }
    9613             :         }
    9614       16530 :         proj_destroy(datum);
    9615             :     }
    9616             : #if PROJ_VERSION_MAJOR > 7 ||                                                  \
    9617             :     (PROJ_VERSION_MAJOR == 7 && PROJ_VERSION_MINOR >= 2)
    9618             :     else
    9619             :     {
    9620             :         auto ensemble =
    9621             :             horiz ? proj_crs_get_datum_ensemble(ctxt, horiz) : nullptr;
    9622             :         if (ensemble)
    9623             :         {
    9624             :             auto member = proj_datum_ensemble_get_member(ctxt, ensemble, 0);
    9625             :             if (member)
    9626             :             {
    9627             :                 const auto type = proj_get_type(member);
    9628             :                 isDynamic = type == PJ_TYPE_DYNAMIC_GEODETIC_REFERENCE_FRAME ||
    9629             :                             type == PJ_TYPE_DYNAMIC_VERTICAL_REFERENCE_FRAME;
    9630             :                 proj_destroy(member);
    9631             :             }
    9632             :             proj_destroy(ensemble);
    9633             :         }
    9634             :     }
    9635             : #endif
    9636       16759 :     proj_destroy(horiz);
    9637       16759 :     d->undoDemoteFromBoundCRS();
    9638       33518 :     return isDynamic;
    9639             : }
    9640             : 
    9641             : /************************************************************************/
    9642             : /*                            OSRIsDynamic()                            */
    9643             : /************************************************************************/
    9644             : /**
    9645             :  * \brief Check if a CRS is a dynamic CRS.
    9646             :  *
    9647             :  * A dynamic CRS relies on a dynamic datum, that is a datum that is not
    9648             :  * plate-fixed.
    9649             :  *
    9650             :  * This function is the same as OGRSpatialReference::IsDynamic().
    9651             :  *
    9652             :  * @since OGR 3.4.0
    9653             :  */
    9654           0 : int OSRIsDynamic(OGRSpatialReferenceH hSRS)
    9655             : 
    9656             : {
    9657           0 :     VALIDATE_POINTER1(hSRS, "OSRIsDynamic", 0);
    9658             : 
    9659           0 :     return ToPointer(hSRS)->IsDynamic();
    9660             : }
    9661             : 
    9662             : /************************************************************************/
    9663             : /*                      HasPointMotionOperation()                       */
    9664             : /************************************************************************/
    9665             : 
    9666             : /**
    9667             :  * \brief Check if a CRS has at least an associated point motion operation.
    9668             :  *
    9669             :  * Some CRS are not formally declared as dynamic, but may behave as such
    9670             :  * in practice due to the presence of point motion operation, to perform
    9671             :  * coordinate epoch changes within the CRS. Typically NAD83(CSRS)v7
    9672             :  *
    9673             :  * @return true if the CRS has at least an associated point motion operation.
    9674             :  *
    9675             :  * @since OGR 3.8.0 and PROJ 9.4.0
    9676             :  *
    9677             :  * @see IsDynamic()
    9678             :  */
    9679             : 
    9680           5 : bool OGRSpatialReference::HasPointMotionOperation() const
    9681             : 
    9682             : {
    9683             : #if PROJ_VERSION_MAJOR > 9 ||                                                  \
    9684             :     (PROJ_VERSION_MAJOR == 9 && PROJ_VERSION_MINOR >= 4)
    9685             :     TAKE_OPTIONAL_LOCK();
    9686             :     d->refreshProjObj();
    9687             :     d->demoteFromBoundCRS();
    9688             :     auto ctxt = d->getPROJContext();
    9689             :     auto res =
    9690             :         CPL_TO_BOOL(proj_crs_has_point_motion_operation(ctxt, d->m_pj_crs));
    9691             :     d->undoDemoteFromBoundCRS();
    9692             :     return res;
    9693             : #else
    9694           5 :     return false;
    9695             : #endif
    9696             : }
    9697             : 
    9698             : /************************************************************************/
    9699             : /*                     OSRHasPointMotionOperation()                     */
    9700             : /************************************************************************/
    9701             : 
    9702             : /**
    9703             :  * \brief Check if a CRS has at least an associated point motion operation.
    9704             :  *
    9705             :  * Some CRS are not formally declared as dynamic, but may behave as such
    9706             :  * in practice due to the presence of point motion operation, to perform
    9707             :  * coordinate epoch changes within the CRS. Typically NAD83(CSRS)v7
    9708             :  *
    9709             :  * This function is the same as OGRSpatialReference::HasPointMotionOperation().
    9710             :  *
    9711             :  * @since OGR 3.8.0 and PROJ 9.4.0
    9712             :  */
    9713           0 : int OSRHasPointMotionOperation(OGRSpatialReferenceH hSRS)
    9714             : 
    9715             : {
    9716           0 :     VALIDATE_POINTER1(hSRS, "OSRHasPointMotionOperation", 0);
    9717             : 
    9718           0 :     return ToPointer(hSRS)->HasPointMotionOperation();
    9719             : }
    9720             : 
    9721             : /************************************************************************/
    9722             : /*                            CloneGeogCS()                             */
    9723             : /************************************************************************/
    9724             : 
    9725             : /**
    9726             :  * \brief Make a duplicate of the GEOGCS node of this OGRSpatialReference
    9727             :  * object.
    9728             :  *
    9729             :  * @return a new SRS, which becomes the responsibility of the caller.
    9730             :  */
    9731        4481 : OGRSpatialReference *OGRSpatialReference::CloneGeogCS() const
    9732             : 
    9733             : {
    9734        8962 :     TAKE_OPTIONAL_LOCK();
    9735        4481 :     d->refreshProjObj();
    9736        4481 :     if (d->m_pj_crs)
    9737             :     {
    9738        4481 :         if (d->m_pjType == PJ_TYPE_ENGINEERING_CRS)
    9739           0 :             return nullptr;
    9740             : 
    9741             :         auto geodCRS =
    9742        4481 :             proj_crs_get_geodetic_crs(d->getPROJContext(), d->m_pj_crs);
    9743        4481 :         if (geodCRS)
    9744             :         {
    9745        4481 :             OGRSpatialReference *poNewSRS = new OGRSpatialReference();
    9746        4481 :             if (d->m_pjType == PJ_TYPE_BOUND_CRS)
    9747             :             {
    9748             :                 PJ *hub_crs =
    9749          13 :                     proj_get_target_crs(d->getPROJContext(), d->m_pj_crs);
    9750          13 :                 PJ *co = proj_crs_get_coordoperation(d->getPROJContext(),
    9751          13 :                                                      d->m_pj_crs);
    9752          13 :                 auto temp = proj_crs_create_bound_crs(d->getPROJContext(),
    9753             :                                                       geodCRS, hub_crs, co);
    9754          13 :                 proj_destroy(geodCRS);
    9755          13 :                 geodCRS = temp;
    9756          13 :                 proj_destroy(hub_crs);
    9757          13 :                 proj_destroy(co);
    9758             :             }
    9759             : 
    9760             :             /* --------------------------------------------------------------------
    9761             :              */
    9762             :             /*      We have to reconstruct the GEOGCS node for geocentric */
    9763             :             /*      coordinate systems. */
    9764             :             /* --------------------------------------------------------------------
    9765             :              */
    9766        4481 :             if (proj_get_type(geodCRS) == PJ_TYPE_GEOCENTRIC_CRS)
    9767             :             {
    9768           0 :                 auto datum = proj_crs_get_datum(d->getPROJContext(), geodCRS);
    9769             : #if PROJ_VERSION_MAJOR > 7 ||                                                  \
    9770             :     (PROJ_VERSION_MAJOR == 7 && PROJ_VERSION_MINOR >= 2)
    9771             :                 if (datum == nullptr)
    9772             :                 {
    9773             :                     datum = proj_crs_get_datum_ensemble(d->getPROJContext(),
    9774             :                                                         geodCRS);
    9775             :                 }
    9776             : #endif
    9777           0 :                 if (datum)
    9778             :                 {
    9779           0 :                     auto cs = proj_create_ellipsoidal_2D_cs(
    9780             :                         d->getPROJContext(), PJ_ELLPS2D_LATITUDE_LONGITUDE,
    9781             :                         nullptr, 0);
    9782           0 :                     auto temp = proj_create_geographic_crs_from_datum(
    9783             :                         d->getPROJContext(), "unnamed", datum, cs);
    9784           0 :                     proj_destroy(datum);
    9785           0 :                     proj_destroy(cs);
    9786           0 :                     proj_destroy(geodCRS);
    9787           0 :                     geodCRS = temp;
    9788             :                 }
    9789             :             }
    9790             : 
    9791        4481 :             poNewSRS->d->setPjCRS(geodCRS);
    9792        4481 :             if (d->m_axisMappingStrategy == OAMS_TRADITIONAL_GIS_ORDER)
    9793        2975 :                 poNewSRS->SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
    9794        4481 :             return poNewSRS;
    9795             :         }
    9796             :     }
    9797           0 :     return nullptr;
    9798             : }
    9799             : 
    9800             : /************************************************************************/
    9801             : /*                           OSRCloneGeogCS()                           */
    9802             : /************************************************************************/
    9803             : /**
    9804             :  * \brief Make a duplicate of the GEOGCS node of this OGRSpatialReference
    9805             :  * object.
    9806             :  *
    9807             :  * This function is the same as OGRSpatialReference::CloneGeogCS().
    9808             :  */
    9809         126 : OGRSpatialReferenceH CPL_STDCALL OSRCloneGeogCS(OGRSpatialReferenceH hSource)
    9810             : 
    9811             : {
    9812         126 :     VALIDATE_POINTER1(hSource, "OSRCloneGeogCS", nullptr);
    9813             : 
    9814         126 :     return ToHandle(ToPointer(hSource)->CloneGeogCS());
    9815             : }
    9816             : 
    9817             : /************************************************************************/
    9818             : /*                            IsSameGeogCS()                            */
    9819             : /************************************************************************/
    9820             : 
    9821             : /**
    9822             :  * \brief Do the GeogCS'es match?
    9823             :  *
    9824             :  * This method is the same as the C function OSRIsSameGeogCS().
    9825             :  *
    9826             :  * @param poOther the SRS being compared against.
    9827             :  *
    9828             :  * @return TRUE if they are the same or FALSE otherwise.
    9829             :  */
    9830             : 
    9831        8744 : int OGRSpatialReference::IsSameGeogCS(const OGRSpatialReference *poOther) const
    9832             : 
    9833             : {
    9834        8744 :     return IsSameGeogCS(poOther, nullptr);
    9835             : }
    9836             : 
    9837             : /**
    9838             :  * \brief Do the GeogCS'es match?
    9839             :  *
    9840             :  * This method is the same as the C function OSRIsSameGeogCS().
    9841             :  *
    9842             :  * @param poOther the SRS being compared against.
    9843             :  * @param papszOptions options. ignored
    9844             :  *
    9845             :  * @return TRUE if they are the same or FALSE otherwise.
    9846             :  */
    9847             : 
    9848        8744 : int OGRSpatialReference::IsSameGeogCS(const OGRSpatialReference *poOther,
    9849             :                                       const char *const *papszOptions) const
    9850             : 
    9851             : {
    9852       17488 :     TAKE_OPTIONAL_LOCK();
    9853             : 
    9854        8744 :     CPL_IGNORE_RET_VAL(papszOptions);
    9855             : 
    9856        8744 :     d->refreshProjObj();
    9857        8744 :     poOther->d->refreshProjObj();
    9858        8744 :     if (!d->m_pj_crs || !poOther->d->m_pj_crs)
    9859           0 :         return FALSE;
    9860        8744 :     if (d->m_pjType == PJ_TYPE_ENGINEERING_CRS ||
    9861        8744 :         d->m_pjType == PJ_TYPE_VERTICAL_CRS ||
    9862       26232 :         poOther->d->m_pjType == PJ_TYPE_ENGINEERING_CRS ||
    9863        8744 :         poOther->d->m_pjType == PJ_TYPE_VERTICAL_CRS)
    9864             :     {
    9865           0 :         return FALSE;
    9866             :     }
    9867             : 
    9868        8744 :     auto geodCRS = proj_crs_get_geodetic_crs(d->getPROJContext(), d->m_pj_crs);
    9869             :     auto otherGeodCRS =
    9870        8744 :         proj_crs_get_geodetic_crs(d->getPROJContext(), poOther->d->m_pj_crs);
    9871        8744 :     if (!geodCRS || !otherGeodCRS)
    9872             :     {
    9873           0 :         proj_destroy(geodCRS);
    9874           0 :         proj_destroy(otherGeodCRS);
    9875           0 :         return FALSE;
    9876             :     }
    9877             : 
    9878        8744 :     int ret = proj_is_equivalent_to(
    9879             :         geodCRS, otherGeodCRS, PJ_COMP_EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS);
    9880             : 
    9881        8744 :     proj_destroy(geodCRS);
    9882        8744 :     proj_destroy(otherGeodCRS);
    9883        8744 :     return ret;
    9884             : }
    9885             : 
    9886             : /************************************************************************/
    9887             : /*                          OSRIsSameGeogCS()                           */
    9888             : /************************************************************************/
    9889             : 
    9890             : /**
    9891             :  * \brief Do the GeogCS'es match?
    9892             :  *
    9893             :  * This function is the same as OGRSpatialReference::IsSameGeogCS().
    9894             :  */
    9895           0 : int OSRIsSameGeogCS(OGRSpatialReferenceH hSRS1, OGRSpatialReferenceH hSRS2)
    9896             : 
    9897             : {
    9898           0 :     VALIDATE_POINTER1(hSRS1, "OSRIsSameGeogCS", 0);
    9899           0 :     VALIDATE_POINTER1(hSRS2, "OSRIsSameGeogCS", 0);
    9900             : 
    9901           0 :     return ToPointer(hSRS1)->IsSameGeogCS(ToPointer(hSRS2));
    9902             : }
    9903             : 
    9904             : /************************************************************************/
    9905             : /*                            IsSameVertCS()                            */
    9906             : /************************************************************************/
    9907             : 
    9908             : /**
    9909             :  * \brief Do the VertCS'es match?
    9910             :  *
    9911             :  * This method is the same as the C function OSRIsSameVertCS().
    9912             :  *
    9913             :  * @param poOther the SRS being compared against.
    9914             :  *
    9915             :  * @return TRUE if they are the same or FALSE otherwise.
    9916             :  */
    9917             : 
    9918           0 : int OGRSpatialReference::IsSameVertCS(const OGRSpatialReference *poOther) const
    9919             : 
    9920             : {
    9921           0 :     TAKE_OPTIONAL_LOCK();
    9922             : 
    9923             :     /* -------------------------------------------------------------------- */
    9924             :     /*      Does the datum name match?                                      */
    9925             :     /* -------------------------------------------------------------------- */
    9926           0 :     const char *pszThisValue = this->GetAttrValue("VERT_DATUM");
    9927           0 :     const char *pszOtherValue = poOther->GetAttrValue("VERT_DATUM");
    9928             : 
    9929           0 :     if (pszThisValue == nullptr || pszOtherValue == nullptr ||
    9930           0 :         !EQUAL(pszThisValue, pszOtherValue))
    9931           0 :         return FALSE;
    9932             : 
    9933             :     /* -------------------------------------------------------------------- */
    9934             :     /*      Do the units match?                                             */
    9935             :     /* -------------------------------------------------------------------- */
    9936           0 :     pszThisValue = this->GetAttrValue("VERT_CS|UNIT", 1);
    9937           0 :     if (pszThisValue == nullptr)
    9938           0 :         pszThisValue = "1.0";
    9939             : 
    9940           0 :     pszOtherValue = poOther->GetAttrValue("VERT_CS|UNIT", 1);
    9941           0 :     if (pszOtherValue == nullptr)
    9942           0 :         pszOtherValue = "1.0";
    9943             : 
    9944           0 :     if (std::abs(CPLAtof(pszOtherValue) - CPLAtof(pszThisValue)) > 0.00000001)
    9945           0 :         return FALSE;
    9946             : 
    9947           0 :     return TRUE;
    9948             : }
    9949             : 
    9950             : /************************************************************************/
    9951             : /*                          OSRIsSameVertCS()                           */
    9952             : /************************************************************************/
    9953             : 
    9954             : /**
    9955             :  * \brief Do the VertCS'es match?
    9956             :  *
    9957             :  * This function is the same as OGRSpatialReference::IsSameVertCS().
    9958             :  */
    9959           0 : int OSRIsSameVertCS(OGRSpatialReferenceH hSRS1, OGRSpatialReferenceH hSRS2)
    9960             : 
    9961             : {
    9962           0 :     VALIDATE_POINTER1(hSRS1, "OSRIsSameVertCS", 0);
    9963           0 :     VALIDATE_POINTER1(hSRS2, "OSRIsSameVertCS", 0);
    9964             : 
    9965           0 :     return ToPointer(hSRS1)->IsSameVertCS(ToPointer(hSRS2));
    9966             : }
    9967             : 
    9968             : /************************************************************************/
    9969             : /*                               IsSame()                               */
    9970             : /************************************************************************/
    9971             : 
    9972             : /**
    9973             :  * \brief Do these two spatial references describe the same system ?
    9974             :  *
    9975             :  * @param poOtherSRS the SRS being compared to.
    9976             :  *
    9977             :  * @return TRUE if equivalent or FALSE otherwise.
    9978             :  */
    9979             : 
    9980       23465 : int OGRSpatialReference::IsSame(const OGRSpatialReference *poOtherSRS) const
    9981             : 
    9982             : {
    9983       23465 :     return IsSame(poOtherSRS, nullptr);
    9984             : }
    9985             : 
    9986             : /**
    9987             :  * \brief Do these two spatial references describe the same system ?
    9988             :  *
    9989             :  * This also takes into account the data axis to CRS axis mapping by default
    9990             :  *
    9991             :  * @param poOtherSRS the SRS being compared to.
    9992             :  * @param papszOptions options. NULL or NULL terminated list of options.
    9993             :  * Currently supported options are:
    9994             :  * <ul>
    9995             :  * <li>IGNORE_DATA_AXIS_TO_SRS_AXIS_MAPPING=YES/NO. Defaults to NO</li>
    9996             :  * <li>CRITERION=STRICT/EQUIVALENT/EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS.
    9997             :  *     Defaults to EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS.</li>
    9998             :  * <li>IGNORE_COORDINATE_EPOCH=YES/NO. Defaults to NO</li>
    9999             :  * </ul>
   10000             :  *
   10001             :  * @return TRUE if equivalent or FALSE otherwise.
   10002             :  */
   10003             : 
   10004       36755 : int OGRSpatialReference::IsSame(const OGRSpatialReference *poOtherSRS,
   10005             :                                 const char *const *papszOptions) const
   10006             : 
   10007             : {
   10008       73510 :     TAKE_OPTIONAL_LOCK();
   10009             : 
   10010       36755 :     d->refreshProjObj();
   10011       36755 :     poOtherSRS->d->refreshProjObj();
   10012       36755 :     if (!d->m_pj_crs || !poOtherSRS->d->m_pj_crs)
   10013          51 :         return d->m_pj_crs == poOtherSRS->d->m_pj_crs;
   10014       36704 :     if (!CPLTestBool(CSLFetchNameValueDef(
   10015             :             papszOptions, "IGNORE_DATA_AXIS_TO_SRS_AXIS_MAPPING", "NO")))
   10016             :     {
   10017       35981 :         if (d->m_axisMapping != poOtherSRS->d->m_axisMapping)
   10018        3545 :             return false;
   10019             :     }
   10020             : 
   10021       33159 :     if (!CPLTestBool(CSLFetchNameValueDef(papszOptions,
   10022             :                                           "IGNORE_COORDINATE_EPOCH", "NO")))
   10023             :     {
   10024       32695 :         if (d->m_coordinateEpoch != poOtherSRS->d->m_coordinateEpoch)
   10025          27 :             return false;
   10026             :     }
   10027             : 
   10028       33132 :     bool reboundSelf = false;
   10029       33132 :     bool reboundOther = false;
   10030       33184 :     if (d->m_pjType == PJ_TYPE_BOUND_CRS &&
   10031          52 :         poOtherSRS->d->m_pjType != PJ_TYPE_BOUND_CRS)
   10032             :     {
   10033          14 :         d->demoteFromBoundCRS();
   10034          14 :         reboundSelf = true;
   10035             :     }
   10036       66198 :     else if (d->m_pjType != PJ_TYPE_BOUND_CRS &&
   10037       33080 :              poOtherSRS->d->m_pjType == PJ_TYPE_BOUND_CRS)
   10038             :     {
   10039          28 :         poOtherSRS->d->demoteFromBoundCRS();
   10040          28 :         reboundOther = true;
   10041             :     }
   10042             : 
   10043       33132 :     PJ_COMPARISON_CRITERION criterion =
   10044             :         PJ_COMP_EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS;
   10045       33132 :     const char *pszCriterion = CSLFetchNameValueDef(
   10046             :         papszOptions, "CRITERION", "EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS");
   10047       33132 :     if (EQUAL(pszCriterion, "STRICT"))
   10048           0 :         criterion = PJ_COMP_STRICT;
   10049       33132 :     else if (EQUAL(pszCriterion, "EQUIVALENT"))
   10050        9942 :         criterion = PJ_COMP_EQUIVALENT;
   10051       23190 :     else if (!EQUAL(pszCriterion, "EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS"))
   10052             :     {
   10053           0 :         CPLError(CE_Warning, CPLE_NotSupported,
   10054             :                  "Unsupported value for CRITERION: %s", pszCriterion);
   10055             :     }
   10056             :     int ret =
   10057       33132 :         proj_is_equivalent_to(d->m_pj_crs, poOtherSRS->d->m_pj_crs, criterion);
   10058       33132 :     if (reboundSelf)
   10059          14 :         d->undoDemoteFromBoundCRS();
   10060       33132 :     if (reboundOther)
   10061          28 :         poOtherSRS->d->undoDemoteFromBoundCRS();
   10062             : 
   10063       33132 :     return ret;
   10064             : }
   10065             : 
   10066             : /************************************************************************/
   10067             : /*                             OSRIsSame()                              */
   10068             : /************************************************************************/
   10069             : 
   10070             : /**
   10071             :  * \brief Do these two spatial references describe the same system ?
   10072             :  *
   10073             :  * This function is the same as OGRSpatialReference::IsSame().
   10074             :  */
   10075          35 : int OSRIsSame(OGRSpatialReferenceH hSRS1, OGRSpatialReferenceH hSRS2)
   10076             : 
   10077             : {
   10078          35 :     VALIDATE_POINTER1(hSRS1, "OSRIsSame", 0);
   10079          35 :     VALIDATE_POINTER1(hSRS2, "OSRIsSame", 0);
   10080             : 
   10081          35 :     return ToPointer(hSRS1)->IsSame(ToPointer(hSRS2));
   10082             : }
   10083             : 
   10084             : /************************************************************************/
   10085             : /*                            OSRIsSameEx()                             */
   10086             : /************************************************************************/
   10087             : 
   10088             : /**
   10089             :  * \brief Do these two spatial references describe the same system ?
   10090             :  *
   10091             :  * This function is the same as OGRSpatialReference::IsSame().
   10092             :  */
   10093         649 : int OSRIsSameEx(OGRSpatialReferenceH hSRS1, OGRSpatialReferenceH hSRS2,
   10094             :                 const char *const *papszOptions)
   10095             : {
   10096         649 :     VALIDATE_POINTER1(hSRS1, "OSRIsSame", 0);
   10097         649 :     VALIDATE_POINTER1(hSRS2, "OSRIsSame", 0);
   10098             : 
   10099         649 :     return ToPointer(hSRS1)->IsSame(ToPointer(hSRS2), papszOptions);
   10100             : }
   10101             : 
   10102             : /************************************************************************/
   10103             : /*                      convertToOtherProjection()                      */
   10104             : /************************************************************************/
   10105             : 
   10106             : /**
   10107             :  * \brief Convert to another equivalent projection
   10108             :  *
   10109             :  * Currently implemented:
   10110             :  * <ul>
   10111             :  * <li>SRS_PT_MERCATOR_1SP to SRS_PT_MERCATOR_2SP</li>
   10112             :  * <li>SRS_PT_MERCATOR_2SP to SRS_PT_MERCATOR_1SP</li>
   10113             :  * <li>SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP to
   10114             :  * SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP</li>
   10115             :  * <li>SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP to
   10116             :  * SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP</li>
   10117             :  * </ul>
   10118             :  *
   10119             :  * @param pszTargetProjection target projection.
   10120             :  * @param papszOptions lists of options. None supported currently.
   10121             :  * @return a new SRS, or NULL in case of error.
   10122             :  *
   10123             :  */
   10124          91 : OGRSpatialReference *OGRSpatialReference::convertToOtherProjection(
   10125             :     const char *pszTargetProjection,
   10126             :     CPL_UNUSED const char *const *papszOptions) const
   10127             : {
   10128         182 :     TAKE_OPTIONAL_LOCK();
   10129             : 
   10130          91 :     if (pszTargetProjection == nullptr)
   10131           1 :         return nullptr;
   10132             :     int new_code;
   10133          90 :     if (EQUAL(pszTargetProjection, SRS_PT_MERCATOR_1SP))
   10134             :     {
   10135           6 :         new_code = EPSG_CODE_METHOD_MERCATOR_VARIANT_A;
   10136             :     }
   10137          84 :     else if (EQUAL(pszTargetProjection, SRS_PT_MERCATOR_2SP))
   10138             :     {
   10139           7 :         new_code = EPSG_CODE_METHOD_MERCATOR_VARIANT_B;
   10140             :     }
   10141          77 :     else if (EQUAL(pszTargetProjection, SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP))
   10142             :     {
   10143          65 :         new_code = EPSG_CODE_METHOD_LAMBERT_CONIC_CONFORMAL_1SP;
   10144             :     }
   10145          12 :     else if (EQUAL(pszTargetProjection, SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP))
   10146             :     {
   10147          11 :         new_code = EPSG_CODE_METHOD_LAMBERT_CONIC_CONFORMAL_2SP;
   10148             :     }
   10149             :     else
   10150             :     {
   10151           1 :         return nullptr;
   10152             :     }
   10153             : 
   10154          89 :     d->refreshProjObj();
   10155          89 :     d->demoteFromBoundCRS();
   10156          89 :     OGRSpatialReference *poNewSRS = nullptr;
   10157          89 :     if (d->m_pjType == PJ_TYPE_PROJECTED_CRS)
   10158             :     {
   10159             :         auto conv =
   10160          88 :             proj_crs_get_coordoperation(d->getPROJContext(), d->m_pj_crs);
   10161          88 :         auto new_conv = proj_convert_conversion_to_other_method(
   10162             :             d->getPROJContext(), conv, new_code, nullptr);
   10163          88 :         proj_destroy(conv);
   10164          88 :         if (new_conv)
   10165             :         {
   10166             :             auto geodCRS =
   10167          74 :                 proj_crs_get_geodetic_crs(d->getPROJContext(), d->m_pj_crs);
   10168          74 :             auto cs = proj_crs_get_coordinate_system(d->getPROJContext(),
   10169          74 :                                                      d->m_pj_crs);
   10170          74 :             if (geodCRS && cs)
   10171             :             {
   10172          74 :                 auto new_proj_crs = proj_create_projected_crs(
   10173          74 :                     d->getPROJContext(), proj_get_name(d->m_pj_crs), geodCRS,
   10174             :                     new_conv, cs);
   10175          74 :                 proj_destroy(new_conv);
   10176          74 :                 if (new_proj_crs)
   10177             :                 {
   10178          74 :                     poNewSRS = new OGRSpatialReference();
   10179             : 
   10180          74 :                     if (d->m_pj_bound_crs_target && d->m_pj_bound_crs_co)
   10181             :                     {
   10182           9 :                         auto boundCRS = proj_crs_create_bound_crs(
   10183             :                             d->getPROJContext(), new_proj_crs,
   10184           9 :                             d->m_pj_bound_crs_target, d->m_pj_bound_crs_co);
   10185           9 :                         if (boundCRS)
   10186             :                         {
   10187           9 :                             proj_destroy(new_proj_crs);
   10188           9 :                             new_proj_crs = boundCRS;
   10189             :                         }
   10190             :                     }
   10191             : 
   10192          74 :                     poNewSRS->d->setPjCRS(new_proj_crs);
   10193             :                 }
   10194             :             }
   10195          74 :             proj_destroy(geodCRS);
   10196          74 :             proj_destroy(cs);
   10197             :         }
   10198             :     }
   10199          89 :     d->undoDemoteFromBoundCRS();
   10200          89 :     return poNewSRS;
   10201             : }
   10202             : 
   10203             : /************************************************************************/
   10204             : /*                    OSRConvertToOtherProjection()                     */
   10205             : /************************************************************************/
   10206             : 
   10207             : /**
   10208             :  * \brief Convert to another equivalent projection
   10209             :  *
   10210             :  * Currently implemented:
   10211             :  * <ul>
   10212             :  * <li>SRS_PT_MERCATOR_1SP to SRS_PT_MERCATOR_2SP</li>
   10213             :  * <li>SRS_PT_MERCATOR_2SP to SRS_PT_MERCATOR_1SP</li>
   10214             :  * <li>SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP to
   10215             :  * SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP</li>
   10216             :  * <li>SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP to
   10217             :  * SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP</li>
   10218             :  * </ul>
   10219             :  *
   10220             :  * @param hSRS source SRS
   10221             :  * @param pszTargetProjection target projection.
   10222             :  * @param papszOptions lists of options. None supported currently.
   10223             :  * @return a new SRS, or NULL in case of error.
   10224             :  *
   10225             :  */
   10226             : OGRSpatialReferenceH
   10227          28 : OSRConvertToOtherProjection(OGRSpatialReferenceH hSRS,
   10228             :                             const char *pszTargetProjection,
   10229             :                             const char *const *papszOptions)
   10230             : {
   10231          28 :     VALIDATE_POINTER1(hSRS, "OSRConvertToOtherProjection", nullptr);
   10232          28 :     return ToHandle(ToPointer(hSRS)->convertToOtherProjection(
   10233          28 :         pszTargetProjection, papszOptions));
   10234             : }
   10235             : 
   10236             : /************************************************************************/
   10237             : /*                           OSRFindMatches()                           */
   10238             : /************************************************************************/
   10239             : 
   10240             : /**
   10241             :  * \brief Try to identify a match between the passed SRS and a related SRS
   10242             :  * in a catalog.
   10243             :  *
   10244             :  * Matching may be partial, or may fail.
   10245             :  * Returned entries will be sorted by decreasing match confidence (first
   10246             :  * entry has the highest match confidence).
   10247             :  *
   10248             :  * The exact way matching is done may change in future versions. Starting with
   10249             :  * GDAL 3.0, it relies on PROJ' proj_identify() function.
   10250             :  *
   10251             :  * This function is the same as OGRSpatialReference::FindMatches().
   10252             :  *
   10253             :  * @param hSRS SRS to match
   10254             :  * @param papszOptions NULL terminated list of options or NULL
   10255             :  * @param pnEntries Output parameter. Number of values in the returned array.
   10256             :  * @param ppanMatchConfidence Output parameter (or NULL). *ppanMatchConfidence
   10257             :  * will be allocated to an array of *pnEntries whose values between 0 and 100
   10258             :  * indicate the confidence in the match. 100 is the highest confidence level.
   10259             :  * The array must be freed with CPLFree().
   10260             :  *
   10261             :  * @return an array of SRS that match the passed SRS, or NULL. Must be freed
   10262             :  * with OSRFreeSRSArray()
   10263             :  *
   10264             :  */
   10265          10 : OGRSpatialReferenceH *OSRFindMatches(OGRSpatialReferenceH hSRS,
   10266             :                                      CSLConstList papszOptions, int *pnEntries,
   10267             :                                      int **ppanMatchConfidence)
   10268             : {
   10269          10 :     if (pnEntries)
   10270          10 :         *pnEntries = 0;
   10271          10 :     if (ppanMatchConfidence)
   10272          10 :         *ppanMatchConfidence = nullptr;
   10273          10 :     VALIDATE_POINTER1(hSRS, "OSRFindMatches", nullptr);
   10274             : 
   10275          10 :     OGRSpatialReference *poSRS = ToPointer(hSRS);
   10276          10 :     return poSRS->FindMatches(papszOptions, pnEntries, ppanMatchConfidence);
   10277             : }
   10278             : 
   10279             : /************************************************************************/
   10280             : /*                          OSRFreeSRSArray()                           */
   10281             : /************************************************************************/
   10282             : 
   10283             : /**
   10284             :  * \brief Free return of OSRIdentifyMatches()
   10285             :  *
   10286             :  * @param pahSRS array of SRS (must be NULL terminated)
   10287             :  */
   10288         197 : void OSRFreeSRSArray(OGRSpatialReferenceH *pahSRS)
   10289             : {
   10290         197 :     if (pahSRS != nullptr)
   10291             :     {
   10292        1744 :         for (int i = 0; pahSRS[i] != nullptr; ++i)
   10293             :         {
   10294        1565 :             OSRRelease(pahSRS[i]);
   10295             :         }
   10296         179 :         CPLFree(pahSRS);
   10297             :     }
   10298         197 : }
   10299             : 
   10300             : /************************************************************************/
   10301             : /*                           FindBestMatch()                            */
   10302             : /************************************************************************/
   10303             : 
   10304             : /**
   10305             :  * \brief Try to identify the best match between the passed SRS and a related
   10306             :  * SRS in a catalog.
   10307             :  *
   10308             :  * This is a wrapper over OGRSpatialReference::FindMatches() that takes care
   10309             :  * of filtering its output.
   10310             :  * Only matches whose confidence is greater or equal to nMinimumMatchConfidence
   10311             :  * will be considered. If there is a single match, it is returned.
   10312             :  * If there are several matches, only return the one under the
   10313             :  * pszPreferredAuthority, if there is a single one under that authority.
   10314             :  *
   10315             :  * @param nMinimumMatchConfidence Minimum match confidence (value between 0 and
   10316             :  * 100). If set to 0, 90 is used.
   10317             :  * @param pszPreferredAuthority Preferred CRS authority. If set to nullptr,
   10318             :  * "EPSG" is used.
   10319             :  * @param papszOptions NULL terminated list of options or NULL. No option is
   10320             :  * defined at time of writing.
   10321             :  *
   10322             :  * @return a new OGRSpatialReference* object to free with Release(), or nullptr
   10323             :  *
   10324             :  * @since GDAL 3.6
   10325             :  * @see OGRSpatialReference::FindMatches()
   10326             :  */
   10327             : OGRSpatialReference *
   10328        1499 : OGRSpatialReference::FindBestMatch(int nMinimumMatchConfidence,
   10329             :                                    const char *pszPreferredAuthority,
   10330             :                                    CSLConstList papszOptions) const
   10331             : {
   10332        2998 :     TAKE_OPTIONAL_LOCK();
   10333             : 
   10334        1499 :     CPL_IGNORE_RET_VAL(papszOptions);  // ignored for now.
   10335             : 
   10336        1499 :     if (nMinimumMatchConfidence == 0)
   10337           0 :         nMinimumMatchConfidence = 90;
   10338        1499 :     if (pszPreferredAuthority == nullptr)
   10339         201 :         pszPreferredAuthority = "EPSG";
   10340             : 
   10341             :     // Try to identify the CRS with the database
   10342        1499 :     int nEntries = 0;
   10343        1499 :     int *panConfidence = nullptr;
   10344             :     OGRSpatialReferenceH *pahSRS =
   10345        1499 :         FindMatches(nullptr, &nEntries, &panConfidence);
   10346        1499 :     if (nEntries == 1 && panConfidence[0] >= nMinimumMatchConfidence)
   10347             :     {
   10348        2670 :         std::vector<double> adfTOWGS84(7);
   10349        1335 :         if (GetTOWGS84(&adfTOWGS84[0], 7) != OGRERR_NONE)
   10350             :         {
   10351        1334 :             adfTOWGS84.clear();
   10352             :         }
   10353             : 
   10354        1335 :         auto poSRS = OGRSpatialReference::FromHandle(pahSRS[0]);
   10355             : 
   10356             :         auto poBaseGeogCRS =
   10357        1335 :             std::unique_ptr<OGRSpatialReference>(poSRS->CloneGeogCS());
   10358        1335 :         if (poBaseGeogCRS)
   10359             :         {
   10360             :             // If the base geographic SRS of the SRS is EPSG:4326
   10361             :             // with TOWGS84[0,0,0,0,0,0], then just use the official
   10362             :             // SRS code
   10363             :             // Same with EPSG:4258 (ETRS89), since it's the only known
   10364             :             // TOWGS84[] style transformation to WGS 84, and given the
   10365             :             // "fuzzy" nature of both ETRS89 and WGS 84, there's little
   10366             :             // chance that a non-NULL TOWGS84[] will emerge.
   10367        1335 :             const char *pszAuthorityName = nullptr;
   10368        1335 :             const char *pszAuthorityCode = nullptr;
   10369        1335 :             const char *pszBaseAuthorityName = nullptr;
   10370        1335 :             const char *pszBaseAuthorityCode = nullptr;
   10371        1335 :             const char *pszBaseName = poBaseGeogCRS->GetName();
   10372        2670 :             if (adfTOWGS84 == std::vector<double>(7) &&
   10373           1 :                 (pszAuthorityName = poSRS->GetAuthorityName(nullptr)) !=
   10374           1 :                     nullptr &&
   10375           1 :                 EQUAL(pszAuthorityName, "EPSG") &&
   10376           1 :                 (pszAuthorityCode = poSRS->GetAuthorityCode(nullptr)) !=
   10377           1 :                     nullptr &&
   10378             :                 (pszBaseAuthorityName =
   10379           1 :                      poBaseGeogCRS->GetAuthorityName(nullptr)) != nullptr &&
   10380           1 :                 EQUAL(pszBaseAuthorityName, "EPSG") &&
   10381             :                 (pszBaseAuthorityCode =
   10382        2672 :                      poBaseGeogCRS->GetAuthorityCode(nullptr)) != nullptr &&
   10383           1 :                 (EQUAL(pszBaseAuthorityCode, "4326") ||
   10384           1 :                  EQUAL(pszBaseAuthorityCode, "4258") ||
   10385             :                  // For ETRS89-XXX [...] new CRS added in EPSG 12.033+
   10386           0 :                  (pszBaseName && STARTS_WITH(pszBaseName, "ETRS89"))))
   10387             :             {
   10388           1 :                 poSRS->importFromEPSG(atoi(pszAuthorityCode));
   10389             :             }
   10390             :         }
   10391             : 
   10392        1335 :         CPLFree(pahSRS);
   10393        1335 :         CPLFree(panConfidence);
   10394             : 
   10395        1335 :         return poSRS;
   10396             :     }
   10397             :     else
   10398             :     {
   10399             :         // If there are several matches >= nMinimumMatchConfidence, take the
   10400             :         // only one that is under pszPreferredAuthority
   10401         164 :         int iBestEntry = -1;
   10402        1679 :         for (int i = 0; i < nEntries; i++)
   10403             :         {
   10404        1515 :             if (panConfidence[i] >= nMinimumMatchConfidence)
   10405             :             {
   10406             :                 const char *pszAuthName =
   10407           3 :                     OGRSpatialReference::FromHandle(pahSRS[i])
   10408           3 :                         ->GetAuthorityName(nullptr);
   10409           3 :                 if (pszAuthName != nullptr &&
   10410           3 :                     EQUAL(pszAuthName, pszPreferredAuthority))
   10411             :                 {
   10412           3 :                     if (iBestEntry < 0)
   10413           3 :                         iBestEntry = i;
   10414             :                     else
   10415             :                     {
   10416           0 :                         iBestEntry = -1;
   10417           0 :                         break;
   10418             :                     }
   10419             :                 }
   10420             :             }
   10421             :         }
   10422         164 :         if (iBestEntry >= 0)
   10423             :         {
   10424           3 :             auto poRet = OGRSpatialReference::FromHandle(pahSRS[0])->Clone();
   10425           3 :             OSRFreeSRSArray(pahSRS);
   10426           3 :             CPLFree(panConfidence);
   10427           3 :             return poRet;
   10428             :         }
   10429             :     }
   10430         161 :     OSRFreeSRSArray(pahSRS);
   10431         161 :     CPLFree(panConfidence);
   10432         161 :     return nullptr;
   10433             : }
   10434             : 
   10435             : /************************************************************************/
   10436             : /*                             SetTOWGS84()                             */
   10437             : /************************************************************************/
   10438             : 
   10439             : /**
   10440             :  * \brief Set the Bursa-Wolf conversion to WGS84.
   10441             :  *
   10442             :  * This will create the TOWGS84 node as a child of the DATUM.  It will fail
   10443             :  * if there is no existing DATUM node. It will replace
   10444             :  * an existing TOWGS84 node if there is one.
   10445             :  *
   10446             :  * The parameters have the same meaning as EPSG transformation 9606
   10447             :  * (Position Vector 7-param. transformation).
   10448             :  *
   10449             :  * This method is the same as the C function OSRSetTOWGS84().
   10450             :  *
   10451             :  * @param dfDX X child in meters.
   10452             :  * @param dfDY Y child in meters.
   10453             :  * @param dfDZ Z child in meters.
   10454             :  * @param dfEX X rotation in arc seconds (optional, defaults to zero).
   10455             :  * @param dfEY Y rotation in arc seconds (optional, defaults to zero).
   10456             :  * @param dfEZ Z rotation in arc seconds (optional, defaults to zero).
   10457             :  * @param dfPPM scaling factor (parts per million).
   10458             :  *
   10459             :  * @return OGRERR_NONE on success.
   10460             :  */
   10461             : 
   10462         103 : OGRErr OGRSpatialReference::SetTOWGS84(double dfDX, double dfDY, double dfDZ,
   10463             :                                        double dfEX, double dfEY, double dfEZ,
   10464             :                                        double dfPPM)
   10465             : 
   10466             : {
   10467         206 :     TAKE_OPTIONAL_LOCK();
   10468             : 
   10469         103 :     d->refreshProjObj();
   10470         103 :     if (d->m_pj_crs == nullptr)
   10471             :     {
   10472           0 :         return OGRERR_FAILURE;
   10473             :     }
   10474             : 
   10475             :     // Remove existing BoundCRS
   10476         103 :     if (d->m_pjType == PJ_TYPE_BOUND_CRS)
   10477             :     {
   10478           0 :         auto baseCRS = proj_get_source_crs(d->getPROJContext(), d->m_pj_crs);
   10479           0 :         if (!baseCRS)
   10480           0 :             return OGRERR_FAILURE;
   10481           0 :         d->setPjCRS(baseCRS);
   10482             :     }
   10483             : 
   10484             :     PJ_PARAM_DESCRIPTION params[7];
   10485             : 
   10486         103 :     params[0].name = EPSG_NAME_PARAMETER_X_AXIS_TRANSLATION;
   10487         103 :     params[0].auth_name = "EPSG";
   10488         103 :     params[0].code = XSTRINGIFY(EPSG_CODE_PARAMETER_X_AXIS_TRANSLATION);
   10489         103 :     params[0].value = dfDX;
   10490         103 :     params[0].unit_name = "metre";
   10491         103 :     params[0].unit_conv_factor = 1.0;
   10492         103 :     params[0].unit_type = PJ_UT_LINEAR;
   10493             : 
   10494         103 :     params[1].name = EPSG_NAME_PARAMETER_Y_AXIS_TRANSLATION;
   10495         103 :     params[1].auth_name = "EPSG";
   10496         103 :     params[1].code = XSTRINGIFY(EPSG_CODE_PARAMETER_Y_AXIS_TRANSLATION);
   10497         103 :     params[1].value = dfDY;
   10498         103 :     params[1].unit_name = "metre";
   10499         103 :     params[1].unit_conv_factor = 1.0;
   10500         103 :     params[1].unit_type = PJ_UT_LINEAR;
   10501             : 
   10502         103 :     params[2].name = EPSG_NAME_PARAMETER_Z_AXIS_TRANSLATION;
   10503         103 :     params[2].auth_name = "EPSG";
   10504         103 :     params[2].code = XSTRINGIFY(EPSG_CODE_PARAMETER_Z_AXIS_TRANSLATION);
   10505         103 :     params[2].value = dfDZ;
   10506         103 :     params[2].unit_name = "metre";
   10507         103 :     params[2].unit_conv_factor = 1.0;
   10508         103 :     params[2].unit_type = PJ_UT_LINEAR;
   10509             : 
   10510         103 :     params[3].name = EPSG_NAME_PARAMETER_X_AXIS_ROTATION;
   10511         103 :     params[3].auth_name = "EPSG";
   10512         103 :     params[3].code = XSTRINGIFY(EPSG_CODE_PARAMETER_X_AXIS_ROTATION);
   10513         103 :     params[3].value = dfEX;
   10514         103 :     params[3].unit_name = "arc-second";
   10515         103 :     params[3].unit_conv_factor = 1. / 3600 * M_PI / 180;
   10516         103 :     params[3].unit_type = PJ_UT_ANGULAR;
   10517             : 
   10518         103 :     params[4].name = EPSG_NAME_PARAMETER_Y_AXIS_ROTATION;
   10519         103 :     params[4].auth_name = "EPSG";
   10520         103 :     params[4].code = XSTRINGIFY(EPSG_CODE_PARAMETER_Y_AXIS_ROTATION);
   10521         103 :     params[4].value = dfEY;
   10522         103 :     params[4].unit_name = "arc-second";
   10523         103 :     params[4].unit_conv_factor = 1. / 3600 * M_PI / 180;
   10524         103 :     params[4].unit_type = PJ_UT_ANGULAR;
   10525             : 
   10526         103 :     params[5].name = EPSG_NAME_PARAMETER_Z_AXIS_ROTATION;
   10527         103 :     params[5].auth_name = "EPSG";
   10528         103 :     params[5].code = XSTRINGIFY(EPSG_CODE_PARAMETER_Z_AXIS_ROTATION);
   10529         103 :     params[5].value = dfEZ;
   10530         103 :     params[5].unit_name = "arc-second";
   10531         103 :     params[5].unit_conv_factor = 1. / 3600 * M_PI / 180;
   10532         103 :     params[5].unit_type = PJ_UT_ANGULAR;
   10533             : 
   10534         103 :     params[6].name = EPSG_NAME_PARAMETER_SCALE_DIFFERENCE;
   10535         103 :     params[6].auth_name = "EPSG";
   10536         103 :     params[6].code = XSTRINGIFY(EPSG_CODE_PARAMETER_SCALE_DIFFERENCE);
   10537         103 :     params[6].value = dfPPM;
   10538         103 :     params[6].unit_name = "parts per million";
   10539         103 :     params[6].unit_conv_factor = 1e-6;
   10540         103 :     params[6].unit_type = PJ_UT_SCALE;
   10541             : 
   10542             :     auto sourceCRS =
   10543         103 :         proj_crs_get_geodetic_crs(d->getPROJContext(), d->m_pj_crs);
   10544         103 :     if (!sourceCRS)
   10545             :     {
   10546           0 :         return OGRERR_FAILURE;
   10547             :     }
   10548             : 
   10549         103 :     const auto sourceType = proj_get_type(sourceCRS);
   10550             : 
   10551         103 :     auto targetCRS = proj_create_from_database(
   10552             :         d->getPROJContext(), "EPSG",
   10553             :         sourceType == PJ_TYPE_GEOGRAPHIC_2D_CRS   ? "4326"
   10554             :         : sourceType == PJ_TYPE_GEOGRAPHIC_3D_CRS ? "4979"
   10555             :                                                   : "4978",
   10556             :         PJ_CATEGORY_CRS, false, nullptr);
   10557         103 :     if (!targetCRS)
   10558             :     {
   10559           0 :         proj_destroy(sourceCRS);
   10560           0 :         return OGRERR_FAILURE;
   10561             :     }
   10562             : 
   10563         206 :     CPLString osMethodCode;
   10564             :     osMethodCode.Printf("%d",
   10565             :                         sourceType == PJ_TYPE_GEOGRAPHIC_2D_CRS
   10566             :                             ? EPSG_CODE_METHOD_POSITION_VECTOR_GEOGRAPHIC_2D
   10567             :                         : sourceType == PJ_TYPE_GEOGRAPHIC_3D_CRS
   10568           0 :                             ? EPSG_CODE_METHOD_POSITION_VECTOR_GEOGRAPHIC_3D
   10569         103 :                             : EPSG_CODE_METHOD_POSITION_VECTOR_GEOCENTRIC);
   10570             : 
   10571         103 :     auto transf = proj_create_transformation(
   10572             :         d->getPROJContext(), "Transformation to WGS84", nullptr, nullptr,
   10573             :         sourceCRS, targetCRS, nullptr,
   10574             :         sourceType == PJ_TYPE_GEOGRAPHIC_2D_CRS
   10575             :             ? EPSG_NAME_METHOD_POSITION_VECTOR_GEOGRAPHIC_2D
   10576             :         : sourceType == PJ_TYPE_GEOGRAPHIC_3D_CRS
   10577           0 :             ? EPSG_NAME_METHOD_POSITION_VECTOR_GEOGRAPHIC_3D
   10578             :             : EPSG_NAME_METHOD_POSITION_VECTOR_GEOCENTRIC,
   10579             :         "EPSG", osMethodCode.c_str(), 7, params, -1);
   10580         103 :     proj_destroy(sourceCRS);
   10581         103 :     if (!transf)
   10582             :     {
   10583           0 :         proj_destroy(targetCRS);
   10584           0 :         return OGRERR_FAILURE;
   10585             :     }
   10586             : 
   10587         103 :     auto newBoundCRS = proj_crs_create_bound_crs(
   10588         103 :         d->getPROJContext(), d->m_pj_crs, targetCRS, transf);
   10589         103 :     proj_destroy(transf);
   10590         103 :     proj_destroy(targetCRS);
   10591         103 :     if (!newBoundCRS)
   10592             :     {
   10593           0 :         return OGRERR_FAILURE;
   10594             :     }
   10595             : 
   10596         103 :     d->setPjCRS(newBoundCRS);
   10597         103 :     return OGRERR_NONE;
   10598             : }
   10599             : 
   10600             : /************************************************************************/
   10601             : /*                           OSRSetTOWGS84()                            */
   10602             : /************************************************************************/
   10603             : 
   10604             : /**
   10605             :  * \brief Set the Bursa-Wolf conversion to WGS84.
   10606             :  *
   10607             :  * This function is the same as OGRSpatialReference::SetTOWGS84().
   10608             :  */
   10609           4 : OGRErr OSRSetTOWGS84(OGRSpatialReferenceH hSRS, double dfDX, double dfDY,
   10610             :                      double dfDZ, double dfEX, double dfEY, double dfEZ,
   10611             :                      double dfPPM)
   10612             : 
   10613             : {
   10614           4 :     VALIDATE_POINTER1(hSRS, "OSRSetTOWGS84", OGRERR_FAILURE);
   10615             : 
   10616           4 :     return ToPointer(hSRS)->SetTOWGS84(dfDX, dfDY, dfDZ, dfEX, dfEY, dfEZ,
   10617           4 :                                        dfPPM);
   10618             : }
   10619             : 
   10620             : /************************************************************************/
   10621             : /*                             GetTOWGS84()                             */
   10622             : /************************************************************************/
   10623             : 
   10624             : /**
   10625             :  * \brief Fetch TOWGS84 parameters, if available.
   10626             :  *
   10627             :  * The parameters have the same meaning as EPSG transformation 9606
   10628             :  * (Position Vector 7-param. transformation).
   10629             :  *
   10630             :  * @param padfCoeff array into which up to 7 coefficients are placed.
   10631             :  * @param nCoeffCount size of padfCoeff - defaults to 7.
   10632             :  *
   10633             :  * @return OGRERR_NONE on success, or OGRERR_FAILURE if there is no
   10634             :  * TOWGS84 node available.
   10635             :  */
   10636             : 
   10637        4911 : OGRErr OGRSpatialReference::GetTOWGS84(double *padfCoeff, int nCoeffCount) const
   10638             : 
   10639             : {
   10640        9822 :     TAKE_OPTIONAL_LOCK();
   10641             : 
   10642        4911 :     d->refreshProjObj();
   10643        4911 :     if (d->m_pjType != PJ_TYPE_BOUND_CRS)
   10644        4863 :         return OGRERR_FAILURE;
   10645             : 
   10646          48 :     memset(padfCoeff, 0, sizeof(double) * nCoeffCount);
   10647             : 
   10648          48 :     auto transf = proj_crs_get_coordoperation(d->getPROJContext(), d->m_pj_crs);
   10649          48 :     int success = proj_coordoperation_get_towgs84_values(
   10650             :         d->getPROJContext(), transf, padfCoeff, nCoeffCount, false);
   10651          48 :     proj_destroy(transf);
   10652             : 
   10653          48 :     return success ? OGRERR_NONE : OGRERR_FAILURE;
   10654             : }
   10655             : 
   10656             : /************************************************************************/
   10657             : /*                           OSRGetTOWGS84()                            */
   10658             : /************************************************************************/
   10659             : 
   10660             : /**
   10661             :  * \brief Fetch TOWGS84 parameters, if available.
   10662             :  *
   10663             :  * This function is the same as OGRSpatialReference::GetTOWGS84().
   10664             :  */
   10665          10 : OGRErr OSRGetTOWGS84(OGRSpatialReferenceH hSRS, double *padfCoeff,
   10666             :                      int nCoeffCount)
   10667             : 
   10668             : {
   10669          10 :     VALIDATE_POINTER1(hSRS, "OSRGetTOWGS84", OGRERR_FAILURE);
   10670             : 
   10671          10 :     return ToPointer(hSRS)->GetTOWGS84(padfCoeff, nCoeffCount);
   10672             : }
   10673             : 
   10674             : /************************************************************************/
   10675             : /*                         IsAngularParameter()                         */
   10676             : /************************************************************************/
   10677             : 
   10678             : /** Is the passed projection parameter an angular one?
   10679             :  *
   10680             :  * @return TRUE or FALSE
   10681             :  */
   10682             : 
   10683             : /* static */
   10684          10 : int OGRSpatialReference::IsAngularParameter(const char *pszParameterName)
   10685             : 
   10686             : {
   10687          10 :     if (STARTS_WITH_CI(pszParameterName, "long") ||
   10688          10 :         STARTS_WITH_CI(pszParameterName, "lati") ||
   10689           7 :         EQUAL(pszParameterName, SRS_PP_CENTRAL_MERIDIAN) ||
   10690           4 :         STARTS_WITH_CI(pszParameterName, "standard_parallel") ||
   10691           2 :         EQUAL(pszParameterName, SRS_PP_AZIMUTH) ||
   10692           2 :         EQUAL(pszParameterName, SRS_PP_RECTIFIED_GRID_ANGLE))
   10693           8 :         return TRUE;
   10694             : 
   10695           2 :     return FALSE;
   10696             : }
   10697             : 
   10698             : /************************************************************************/
   10699             : /*                        IsLongitudeParameter()                        */
   10700             : /************************************************************************/
   10701             : 
   10702             : /** Is the passed projection parameter an angular longitude
   10703             :  * (relative to a prime meridian)?
   10704             :  *
   10705             :  * @return TRUE or FALSE
   10706             :  */
   10707             : 
   10708             : /* static */
   10709           0 : int OGRSpatialReference::IsLongitudeParameter(const char *pszParameterName)
   10710             : 
   10711             : {
   10712           0 :     if (STARTS_WITH_CI(pszParameterName, "long") ||
   10713           0 :         EQUAL(pszParameterName, SRS_PP_CENTRAL_MERIDIAN))
   10714           0 :         return TRUE;
   10715             : 
   10716           0 :     return FALSE;
   10717             : }
   10718             : 
   10719             : /************************************************************************/
   10720             : /*                         IsLinearParameter()                          */
   10721             : /************************************************************************/
   10722             : 
   10723             : /** Is the passed projection parameter an linear one measured in meters or
   10724             :  * some similar linear measure.
   10725             :  *
   10726             :  * @return TRUE or FALSE
   10727             :  */
   10728             : 
   10729             : /* static */
   10730          43 : int OGRSpatialReference::IsLinearParameter(const char *pszParameterName)
   10731             : 
   10732             : {
   10733          43 :     if (STARTS_WITH_CI(pszParameterName, "false_") ||
   10734          34 :         EQUAL(pszParameterName, SRS_PP_SATELLITE_HEIGHT))
   10735           9 :         return TRUE;
   10736             : 
   10737          34 :     return FALSE;
   10738             : }
   10739             : 
   10740             : /************************************************************************/
   10741             : /*                            GetNormInfo()                             */
   10742             : /************************************************************************/
   10743             : 
   10744             : /**
   10745             :  * \brief Set the internal information for normalizing linear, and angular
   10746             :  * values.
   10747             :  */
   10748        4121 : void OGRSpatialReference::GetNormInfo() const
   10749             : 
   10750             : {
   10751        4121 :     TAKE_OPTIONAL_LOCK();
   10752             : 
   10753        4121 :     if (d->bNormInfoSet)
   10754        2943 :         return;
   10755             : 
   10756             :     /* -------------------------------------------------------------------- */
   10757             :     /*      Initialize values.                                              */
   10758             :     /* -------------------------------------------------------------------- */
   10759        1178 :     d->bNormInfoSet = TRUE;
   10760             : 
   10761        1178 :     d->dfFromGreenwich = GetPrimeMeridian(nullptr);
   10762        1178 :     d->dfToMeter = GetLinearUnits(nullptr);
   10763        1178 :     d->dfToDegrees = GetAngularUnits(nullptr) / CPLAtof(SRS_UA_DEGREE_CONV);
   10764        1178 :     if (fabs(d->dfToDegrees - 1.0) < 0.000000001)
   10765        1175 :         d->dfToDegrees = 1.0;
   10766             : }
   10767             : 
   10768             : /************************************************************************/
   10769             : /*                            GetExtension()                            */
   10770             : /************************************************************************/
   10771             : 
   10772             : /**
   10773             :  * \brief Fetch extension value.
   10774             :  *
   10775             :  * Fetch the value of the named EXTENSION item for the identified
   10776             :  * target node.
   10777             :  *
   10778             :  * @param pszTargetKey the name or path to the parent node of the EXTENSION.
   10779             :  * @param pszName the name of the extension being fetched.
   10780             :  * @param pszDefault the value to return if the extension is not found.
   10781             :  *
   10782             :  * @return node value if successful or pszDefault on failure.
   10783             :  */
   10784             : 
   10785       13082 : const char *OGRSpatialReference::GetExtension(const char *pszTargetKey,
   10786             :                                               const char *pszName,
   10787             :                                               const char *pszDefault) const
   10788             : 
   10789             : {
   10790       26164 :     TAKE_OPTIONAL_LOCK();
   10791             : 
   10792             :     /* -------------------------------------------------------------------- */
   10793             :     /*      Find the target node.                                           */
   10794             :     /* -------------------------------------------------------------------- */
   10795             :     const OGR_SRSNode *poNode =
   10796       13082 :         pszTargetKey == nullptr ? GetRoot() : GetAttrNode(pszTargetKey);
   10797             : 
   10798       13082 :     if (poNode == nullptr)
   10799        2364 :         return nullptr;
   10800             : 
   10801             :     /* -------------------------------------------------------------------- */
   10802             :     /*      Fetch matching EXTENSION if there is one.                       */
   10803             :     /* -------------------------------------------------------------------- */
   10804       79139 :     for (int i = poNode->GetChildCount() - 1; i >= 0; i--)
   10805             :     {
   10806       68445 :         const OGR_SRSNode *poChild = poNode->GetChild(i);
   10807             : 
   10808       68471 :         if (EQUAL(poChild->GetValue(), "EXTENSION") &&
   10809          26 :             poChild->GetChildCount() >= 2)
   10810             :         {
   10811          26 :             if (EQUAL(poChild->GetChild(0)->GetValue(), pszName))
   10812          24 :                 return poChild->GetChild(1)->GetValue();
   10813             :         }
   10814             :     }
   10815             : 
   10816       10694 :     return pszDefault;
   10817             : }
   10818             : 
   10819             : /************************************************************************/
   10820             : /*                            SetExtension()                            */
   10821             : /************************************************************************/
   10822             : /**
   10823             :  * \brief Set extension value.
   10824             :  *
   10825             :  * Set the value of the named EXTENSION item for the identified
   10826             :  * target node.
   10827             :  *
   10828             :  * @param pszTargetKey the name or path to the parent node of the EXTENSION.
   10829             :  * @param pszName the name of the extension being fetched.
   10830             :  * @param pszValue the value to set
   10831             :  *
   10832             :  * @return OGRERR_NONE on success
   10833             :  */
   10834             : 
   10835          20 : OGRErr OGRSpatialReference::SetExtension(const char *pszTargetKey,
   10836             :                                          const char *pszName,
   10837             :                                          const char *pszValue)
   10838             : 
   10839             : {
   10840          40 :     TAKE_OPTIONAL_LOCK();
   10841             : 
   10842             :     /* -------------------------------------------------------------------- */
   10843             :     /*      Find the target node.                                           */
   10844             :     /* -------------------------------------------------------------------- */
   10845          20 :     OGR_SRSNode *poNode = nullptr;
   10846             : 
   10847          20 :     if (pszTargetKey == nullptr)
   10848           0 :         poNode = GetRoot();
   10849             :     else
   10850          20 :         poNode = GetAttrNode(pszTargetKey);
   10851             : 
   10852          20 :     if (poNode == nullptr)
   10853           0 :         return OGRERR_FAILURE;
   10854             : 
   10855             :     /* -------------------------------------------------------------------- */
   10856             :     /*      Fetch matching EXTENSION if there is one.                       */
   10857             :     /* -------------------------------------------------------------------- */
   10858         151 :     for (int i = poNode->GetChildCount() - 1; i >= 0; i--)
   10859             :     {
   10860         137 :         OGR_SRSNode *poChild = poNode->GetChild(i);
   10861             : 
   10862         143 :         if (EQUAL(poChild->GetValue(), "EXTENSION") &&
   10863           6 :             poChild->GetChildCount() >= 2)
   10864             :         {
   10865           6 :             if (EQUAL(poChild->GetChild(0)->GetValue(), pszName))
   10866             :             {
   10867           6 :                 poChild->GetChild(1)->SetValue(pszValue);
   10868           6 :                 return OGRERR_NONE;
   10869             :             }
   10870             :         }
   10871             :     }
   10872             : 
   10873             :     /* -------------------------------------------------------------------- */
   10874             :     /*      Create a new EXTENSION node.                                    */
   10875             :     /* -------------------------------------------------------------------- */
   10876          14 :     OGR_SRSNode *poAuthNode = new OGR_SRSNode("EXTENSION");
   10877          14 :     poAuthNode->AddChild(new OGR_SRSNode(pszName));
   10878          14 :     poAuthNode->AddChild(new OGR_SRSNode(pszValue));
   10879             : 
   10880          14 :     poNode->AddChild(poAuthNode);
   10881             : 
   10882          14 :     return OGRERR_NONE;
   10883             : }
   10884             : 
   10885             : /************************************************************************/
   10886             : /*                             OSRCleanup()                             */
   10887             : /************************************************************************/
   10888             : 
   10889             : static void CleanupSRSWGS84Mutex();
   10890             : 
   10891             : /**
   10892             :  * \brief Cleanup cached SRS related memory.
   10893             :  *
   10894             :  * This function will attempt to cleanup any cache spatial reference
   10895             :  * related information, such as cached tables of coordinate systems.
   10896             :  *
   10897             :  * This function should not be called concurrently with any other GDAL/OGR
   10898             :  * function. It is meant at being called once before process termination
   10899             :  * (typically from the main thread). CPLCleanupTLS() might be used to clean
   10900             :  * thread-specific resources before thread termination.
   10901             :  */
   10902        1141 : void OSRCleanup(void)
   10903             : 
   10904             : {
   10905        1141 :     OGRCTDumpStatistics();
   10906        1141 :     CSVDeaccess(nullptr);
   10907        1141 :     CleanupSRSWGS84Mutex();
   10908        1141 :     OSRCTCleanCache();
   10909        1141 :     OSRCleanupTLSContext();
   10910        1141 : }
   10911             : 
   10912             : /************************************************************************/
   10913             : /*                            GetAxesCount()                            */
   10914             : /************************************************************************/
   10915             : 
   10916             : /**
   10917             :  * \brief Return the number of axis of the coordinate system of the CRS.
   10918             :  *
   10919             :  * @since GDAL 3.0
   10920             :  */
   10921       38924 : int OGRSpatialReference::GetAxesCount() const
   10922             : {
   10923       77848 :     TAKE_OPTIONAL_LOCK();
   10924             : 
   10925       38924 :     int axisCount = 0;
   10926       38924 :     d->refreshProjObj();
   10927       38924 :     if (d->m_pj_crs == nullptr)
   10928             :     {
   10929           0 :         return 0;
   10930             :     }
   10931       38924 :     d->demoteFromBoundCRS();
   10932       38924 :     auto ctxt = d->getPROJContext();
   10933       38924 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
   10934             :     {
   10935          38 :         for (int i = 0;; i++)
   10936             :         {
   10937         114 :             auto subCRS = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, i);
   10938         114 :             if (!subCRS)
   10939          38 :                 break;
   10940          76 :             if (proj_get_type(subCRS) == PJ_TYPE_BOUND_CRS)
   10941             :             {
   10942          18 :                 auto baseCRS = proj_get_source_crs(ctxt, subCRS);
   10943          18 :                 if (baseCRS)
   10944             :                 {
   10945          18 :                     proj_destroy(subCRS);
   10946          18 :                     subCRS = baseCRS;
   10947             :                 }
   10948             :             }
   10949          76 :             auto cs = proj_crs_get_coordinate_system(ctxt, subCRS);
   10950          76 :             if (cs)
   10951             :             {
   10952          76 :                 axisCount += proj_cs_get_axis_count(ctxt, cs);
   10953          76 :                 proj_destroy(cs);
   10954             :             }
   10955          76 :             proj_destroy(subCRS);
   10956          76 :         }
   10957             :     }
   10958             :     else
   10959             :     {
   10960       38886 :         auto cs = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
   10961       38886 :         if (cs)
   10962             :         {
   10963       38886 :             axisCount = proj_cs_get_axis_count(ctxt, cs);
   10964       38886 :             proj_destroy(cs);
   10965             :         }
   10966             :     }
   10967       38924 :     d->undoDemoteFromBoundCRS();
   10968       38924 :     return axisCount;
   10969             : }
   10970             : 
   10971             : /************************************************************************/
   10972             : /*                          OSRGetAxesCount()                           */
   10973             : /************************************************************************/
   10974             : 
   10975             : /**
   10976             :  * \brief Return the number of axis of the coordinate system of the CRS.
   10977             :  *
   10978             :  * This method is the equivalent of the C++ method
   10979             :  * OGRSpatialReference::GetAxesCount()
   10980             :  *
   10981             :  * @since GDAL 3.1
   10982             :  */
   10983           6 : int OSRGetAxesCount(OGRSpatialReferenceH hSRS)
   10984             : 
   10985             : {
   10986           6 :     VALIDATE_POINTER1(hSRS, "OSRGetAxesCount", 0);
   10987             : 
   10988           6 :     return ToPointer(hSRS)->GetAxesCount();
   10989             : }
   10990             : 
   10991             : /************************************************************************/
   10992             : /*                              GetAxis()                               */
   10993             : /************************************************************************/
   10994             : 
   10995             : /**
   10996             :  * \brief Fetch the orientation of one axis.
   10997             :  *
   10998             :  * Fetches the request axis (iAxis - zero based) from the
   10999             :  * indicated portion of the coordinate system (pszTargetKey) which
   11000             :  * should be either "GEOGCS" or "PROJCS".
   11001             :  *
   11002             :  * No CPLError is issued on routine failures (such as not finding the AXIS).
   11003             :  *
   11004             :  * This method is equivalent to the C function OSRGetAxis().
   11005             :  *
   11006             :  * @param pszTargetKey the coordinate system part to query ("PROJCS" or
   11007             :  * "GEOGCS").
   11008             :  * @param iAxis the axis to query (0 for first, 1 for second, 2 for third).
   11009             :  * @param peOrientation location into which to place the fetch orientation, may
   11010             :  * be NULL.
   11011             :  * @param pdfConvUnit (GDAL >= 3.4) Location into which to place axis conversion
   11012             :  * factor. May be NULL. Only set if pszTargetKey == NULL
   11013             :  *
   11014             :  * @return the name of the axis or NULL on failure.
   11015             :  */
   11016             : 
   11017        8678 : const char *OGRSpatialReference::GetAxis(const char *pszTargetKey, int iAxis,
   11018             :                                          OGRAxisOrientation *peOrientation,
   11019             :                                          double *pdfConvUnit) const
   11020             : 
   11021             : {
   11022       17356 :     TAKE_OPTIONAL_LOCK();
   11023             : 
   11024        8678 :     if (peOrientation != nullptr)
   11025        8569 :         *peOrientation = OAO_Other;
   11026        8678 :     if (pdfConvUnit != nullptr)
   11027         101 :         *pdfConvUnit = 0;
   11028             : 
   11029        8678 :     d->refreshProjObj();
   11030        8678 :     if (d->m_pj_crs == nullptr)
   11031             :     {
   11032           3 :         return nullptr;
   11033             :     }
   11034             : 
   11035        8675 :     pszTargetKey = d->nullifyTargetKeyIfPossible(pszTargetKey);
   11036        8675 :     if (pszTargetKey == nullptr && iAxis <= 2)
   11037             :     {
   11038        8675 :         auto ctxt = d->getPROJContext();
   11039             : 
   11040        8675 :         int iAxisModified = iAxis;
   11041             : 
   11042        8675 :         d->demoteFromBoundCRS();
   11043             : 
   11044        8675 :         PJ *cs = nullptr;
   11045        8675 :         if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
   11046             :         {
   11047         134 :             auto horizCRS = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 0);
   11048         134 :             if (horizCRS)
   11049             :             {
   11050         134 :                 if (proj_get_type(horizCRS) == PJ_TYPE_BOUND_CRS)
   11051             :                 {
   11052           6 :                     auto baseCRS = proj_get_source_crs(ctxt, horizCRS);
   11053           6 :                     if (baseCRS)
   11054             :                     {
   11055           6 :                         proj_destroy(horizCRS);
   11056           6 :                         horizCRS = baseCRS;
   11057             :                     }
   11058             :                 }
   11059         134 :                 cs = proj_crs_get_coordinate_system(ctxt, horizCRS);
   11060         134 :                 proj_destroy(horizCRS);
   11061         134 :                 if (cs)
   11062             :                 {
   11063         134 :                     if (iAxisModified >= proj_cs_get_axis_count(ctxt, cs))
   11064             :                     {
   11065          44 :                         iAxisModified -= proj_cs_get_axis_count(ctxt, cs);
   11066          44 :                         proj_destroy(cs);
   11067          44 :                         cs = nullptr;
   11068             :                     }
   11069             :                 }
   11070             :             }
   11071             : 
   11072         134 :             if (cs == nullptr)
   11073             :             {
   11074          44 :                 auto vertCRS = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 1);
   11075          44 :                 if (vertCRS)
   11076             :                 {
   11077          44 :                     if (proj_get_type(vertCRS) == PJ_TYPE_BOUND_CRS)
   11078             :                     {
   11079          30 :                         auto baseCRS = proj_get_source_crs(ctxt, vertCRS);
   11080          30 :                         if (baseCRS)
   11081             :                         {
   11082          30 :                             proj_destroy(vertCRS);
   11083          30 :                             vertCRS = baseCRS;
   11084             :                         }
   11085             :                     }
   11086             : 
   11087          44 :                     cs = proj_crs_get_coordinate_system(ctxt, vertCRS);
   11088          44 :                     proj_destroy(vertCRS);
   11089             :                 }
   11090             :             }
   11091             :         }
   11092             :         else
   11093             :         {
   11094        8541 :             cs = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
   11095             :         }
   11096             : 
   11097        8675 :         if (cs)
   11098             :         {
   11099        8675 :             const char *pszName = nullptr;
   11100        8675 :             const char *pszOrientation = nullptr;
   11101        8675 :             double dfConvFactor = 0.0;
   11102        8675 :             proj_cs_get_axis_info(ctxt, cs, iAxisModified, &pszName, nullptr,
   11103             :                                   &pszOrientation, &dfConvFactor, nullptr,
   11104             :                                   nullptr, nullptr);
   11105             : 
   11106        8675 :             if (pdfConvUnit != nullptr)
   11107             :             {
   11108         101 :                 *pdfConvUnit = dfConvFactor;
   11109             :             }
   11110             : 
   11111        8675 :             if (pszName && pszOrientation)
   11112             :             {
   11113        8675 :                 d->m_osAxisName[iAxis] = pszName;
   11114        8675 :                 if (peOrientation)
   11115             :                 {
   11116        8566 :                     if (EQUAL(pszOrientation, "NORTH"))
   11117        5465 :                         *peOrientation = OAO_North;
   11118        3101 :                     else if (EQUAL(pszOrientation, "EAST"))
   11119        3023 :                         *peOrientation = OAO_East;
   11120          78 :                     else if (EQUAL(pszOrientation, "SOUTH"))
   11121          67 :                         *peOrientation = OAO_South;
   11122          11 :                     else if (EQUAL(pszOrientation, "WEST"))
   11123           0 :                         *peOrientation = OAO_West;
   11124          11 :                     else if (EQUAL(pszOrientation, "UP"))
   11125           1 :                         *peOrientation = OAO_Up;
   11126          10 :                     else if (EQUAL(pszOrientation, "DOWN"))
   11127           0 :                         *peOrientation = OAO_Down;
   11128             :                 }
   11129        8675 :                 proj_destroy(cs);
   11130        8675 :                 d->undoDemoteFromBoundCRS();
   11131        8675 :                 return d->m_osAxisName[iAxis].c_str();
   11132             :             }
   11133           0 :             proj_destroy(cs);
   11134             :         }
   11135           0 :         d->undoDemoteFromBoundCRS();
   11136             :     }
   11137             : 
   11138             :     /* -------------------------------------------------------------------- */
   11139             :     /*      Find the target node.                                           */
   11140             :     /* -------------------------------------------------------------------- */
   11141           0 :     const OGR_SRSNode *poNode = nullptr;
   11142             : 
   11143           0 :     if (pszTargetKey == nullptr)
   11144           0 :         poNode = GetRoot();
   11145             :     else
   11146           0 :         poNode = GetAttrNode(pszTargetKey);
   11147             : 
   11148           0 :     if (poNode == nullptr)
   11149           0 :         return nullptr;
   11150             : 
   11151             :     /* -------------------------------------------------------------------- */
   11152             :     /*      Find desired child AXIS.                                        */
   11153             :     /* -------------------------------------------------------------------- */
   11154           0 :     const OGR_SRSNode *poAxis = nullptr;
   11155           0 :     const int nChildCount = poNode->GetChildCount();
   11156             : 
   11157           0 :     for (int iChild = 0; iChild < nChildCount; iChild++)
   11158             :     {
   11159           0 :         const OGR_SRSNode *poChild = poNode->GetChild(iChild);
   11160             : 
   11161           0 :         if (!EQUAL(poChild->GetValue(), "AXIS"))
   11162           0 :             continue;
   11163             : 
   11164           0 :         if (iAxis == 0)
   11165             :         {
   11166           0 :             poAxis = poChild;
   11167           0 :             break;
   11168             :         }
   11169           0 :         iAxis--;
   11170             :     }
   11171             : 
   11172           0 :     if (poAxis == nullptr)
   11173           0 :         return nullptr;
   11174             : 
   11175           0 :     if (poAxis->GetChildCount() < 2)
   11176           0 :         return nullptr;
   11177             : 
   11178             :     /* -------------------------------------------------------------------- */
   11179             :     /*      Extract name and orientation if possible.                       */
   11180             :     /* -------------------------------------------------------------------- */
   11181           0 :     if (peOrientation != nullptr)
   11182             :     {
   11183           0 :         const char *pszOrientation = poAxis->GetChild(1)->GetValue();
   11184             : 
   11185           0 :         if (EQUAL(pszOrientation, "NORTH"))
   11186           0 :             *peOrientation = OAO_North;
   11187           0 :         else if (EQUAL(pszOrientation, "EAST"))
   11188           0 :             *peOrientation = OAO_East;
   11189           0 :         else if (EQUAL(pszOrientation, "SOUTH"))
   11190           0 :             *peOrientation = OAO_South;
   11191           0 :         else if (EQUAL(pszOrientation, "WEST"))
   11192           0 :             *peOrientation = OAO_West;
   11193           0 :         else if (EQUAL(pszOrientation, "UP"))
   11194           0 :             *peOrientation = OAO_Up;
   11195           0 :         else if (EQUAL(pszOrientation, "DOWN"))
   11196           0 :             *peOrientation = OAO_Down;
   11197           0 :         else if (EQUAL(pszOrientation, "OTHER"))
   11198           0 :             *peOrientation = OAO_Other;
   11199             :         else
   11200             :         {
   11201           0 :             CPLDebug("OSR", "Unrecognized orientation value '%s'.",
   11202             :                      pszOrientation);
   11203             :         }
   11204             :     }
   11205             : 
   11206           0 :     return poAxis->GetChild(0)->GetValue();
   11207             : }
   11208             : 
   11209             : /************************************************************************/
   11210             : /*                             OSRGetAxis()                             */
   11211             : /************************************************************************/
   11212             : 
   11213             : /**
   11214             :  * \brief Fetch the orientation of one axis.
   11215             :  *
   11216             :  * This method is the equivalent of the C++ method OGRSpatialReference::GetAxis
   11217             :  */
   11218          13 : const char *OSRGetAxis(OGRSpatialReferenceH hSRS, const char *pszTargetKey,
   11219             :                        int iAxis, OGRAxisOrientation *peOrientation)
   11220             : 
   11221             : {
   11222          13 :     VALIDATE_POINTER1(hSRS, "OSRGetAxis", nullptr);
   11223             : 
   11224          13 :     return ToPointer(hSRS)->GetAxis(pszTargetKey, iAxis, peOrientation);
   11225             : }
   11226             : 
   11227             : /************************************************************************/
   11228             : /*                         OSRAxisEnumToName()                          */
   11229             : /************************************************************************/
   11230             : 
   11231             : /**
   11232             :  * \brief Return the string representation for the OGRAxisOrientation
   11233             :  * enumeration.
   11234             :  *
   11235             :  * For example "NORTH" for OAO_North.
   11236             :  *
   11237             :  * @return an internal string
   11238             :  */
   11239         400 : const char *OSRAxisEnumToName(OGRAxisOrientation eOrientation)
   11240             : 
   11241             : {
   11242         400 :     if (eOrientation == OAO_North)
   11243         200 :         return "NORTH";
   11244         200 :     if (eOrientation == OAO_East)
   11245         200 :         return "EAST";
   11246           0 :     if (eOrientation == OAO_South)
   11247           0 :         return "SOUTH";
   11248           0 :     if (eOrientation == OAO_West)
   11249           0 :         return "WEST";
   11250           0 :     if (eOrientation == OAO_Up)
   11251           0 :         return "UP";
   11252           0 :     if (eOrientation == OAO_Down)
   11253           0 :         return "DOWN";
   11254           0 :     if (eOrientation == OAO_Other)
   11255           0 :         return "OTHER";
   11256             : 
   11257           0 :     return "UNKNOWN";
   11258             : }
   11259             : 
   11260             : /************************************************************************/
   11261             : /*                              SetAxes()                               */
   11262             : /************************************************************************/
   11263             : 
   11264             : /**
   11265             :  * \brief Set the axes for a coordinate system.
   11266             :  *
   11267             :  * Set the names, and orientations of the axes for either a projected
   11268             :  * (PROJCS) or geographic (GEOGCS) coordinate system.
   11269             :  *
   11270             :  * This method is equivalent to the C function OSRSetAxes().
   11271             :  *
   11272             :  * @param pszTargetKey either "PROJCS" or "GEOGCS", must already exist in SRS.
   11273             :  * @param pszXAxisName name of first axis, normally "Long" or "Easting".
   11274             :  * @param eXAxisOrientation normally OAO_East.
   11275             :  * @param pszYAxisName name of second axis, normally "Lat" or "Northing".
   11276             :  * @param eYAxisOrientation normally OAO_North.
   11277             :  *
   11278             :  * @return OGRERR_NONE on success or an error code.
   11279             :  */
   11280             : 
   11281         200 : OGRErr OGRSpatialReference::SetAxes(const char *pszTargetKey,
   11282             :                                     const char *pszXAxisName,
   11283             :                                     OGRAxisOrientation eXAxisOrientation,
   11284             :                                     const char *pszYAxisName,
   11285             :                                     OGRAxisOrientation eYAxisOrientation)
   11286             : 
   11287             : {
   11288         400 :     TAKE_OPTIONAL_LOCK();
   11289             : 
   11290             :     /* -------------------------------------------------------------------- */
   11291             :     /*      Find the target node.                                           */
   11292             :     /* -------------------------------------------------------------------- */
   11293         200 :     OGR_SRSNode *poNode = nullptr;
   11294             : 
   11295         200 :     if (pszTargetKey == nullptr)
   11296         200 :         poNode = GetRoot();
   11297             :     else
   11298           0 :         poNode = GetAttrNode(pszTargetKey);
   11299             : 
   11300         200 :     if (poNode == nullptr)
   11301           0 :         return OGRERR_FAILURE;
   11302             : 
   11303             :     /* -------------------------------------------------------------------- */
   11304             :     /*      Strip any existing AXIS children.                               */
   11305             :     /* -------------------------------------------------------------------- */
   11306         600 :     while (poNode->FindChild("AXIS") >= 0)
   11307         400 :         poNode->DestroyChild(poNode->FindChild("AXIS"));
   11308             : 
   11309             :     /* -------------------------------------------------------------------- */
   11310             :     /*      Insert desired axes                                             */
   11311             :     /* -------------------------------------------------------------------- */
   11312         200 :     OGR_SRSNode *poAxis = new OGR_SRSNode("AXIS");
   11313             : 
   11314         200 :     poAxis->AddChild(new OGR_SRSNode(pszXAxisName));
   11315         200 :     poAxis->AddChild(new OGR_SRSNode(OSRAxisEnumToName(eXAxisOrientation)));
   11316             : 
   11317         200 :     poNode->AddChild(poAxis);
   11318             : 
   11319         200 :     poAxis = new OGR_SRSNode("AXIS");
   11320             : 
   11321         200 :     poAxis->AddChild(new OGR_SRSNode(pszYAxisName));
   11322         200 :     poAxis->AddChild(new OGR_SRSNode(OSRAxisEnumToName(eYAxisOrientation)));
   11323             : 
   11324         200 :     poNode->AddChild(poAxis);
   11325             : 
   11326         200 :     return OGRERR_NONE;
   11327             : }
   11328             : 
   11329             : /************************************************************************/
   11330             : /*                             OSRSetAxes()                             */
   11331             : /************************************************************************/
   11332             : /**
   11333             :  * \brief Set the axes for a coordinate system.
   11334             :  *
   11335             :  * This method is the equivalent of the C++ method OGRSpatialReference::SetAxes
   11336             :  */
   11337           0 : OGRErr OSRSetAxes(OGRSpatialReferenceH hSRS, const char *pszTargetKey,
   11338             :                   const char *pszXAxisName,
   11339             :                   OGRAxisOrientation eXAxisOrientation,
   11340             :                   const char *pszYAxisName,
   11341             :                   OGRAxisOrientation eYAxisOrientation)
   11342             : {
   11343           0 :     VALIDATE_POINTER1(hSRS, "OSRSetAxes", OGRERR_FAILURE);
   11344             : 
   11345           0 :     return ToPointer(hSRS)->SetAxes(pszTargetKey, pszXAxisName,
   11346             :                                     eXAxisOrientation, pszYAxisName,
   11347           0 :                                     eYAxisOrientation);
   11348             : }
   11349             : 
   11350             : /************************************************************************/
   11351             : /*                       OSRExportToMICoordSys()                        */
   11352             : /************************************************************************/
   11353             : /**
   11354             :  * \brief Export coordinate system in Mapinfo style CoordSys format.
   11355             :  *
   11356             :  * This method is the equivalent of the C++ method
   11357             :  * OGRSpatialReference::exportToMICoordSys
   11358             :  */
   11359           5 : OGRErr OSRExportToMICoordSys(OGRSpatialReferenceH hSRS, char **ppszReturn)
   11360             : 
   11361             : {
   11362           5 :     VALIDATE_POINTER1(hSRS, "OSRExportToMICoordSys", OGRERR_FAILURE);
   11363             : 
   11364           5 :     *ppszReturn = nullptr;
   11365             : 
   11366           5 :     return ToPointer(hSRS)->exportToMICoordSys(ppszReturn);
   11367             : }
   11368             : 
   11369             : /************************************************************************/
   11370             : /*                         exportToMICoordSys()                         */
   11371             : /************************************************************************/
   11372             : 
   11373             : /**
   11374             :  * \brief Export coordinate system in Mapinfo style CoordSys format.
   11375             :  *
   11376             :  * Note that the returned WKT string should be freed with
   11377             :  * CPLFree() when no longer needed.  It is the responsibility of the caller.
   11378             :  *
   11379             :  * This method is the same as the C function OSRExportToMICoordSys().
   11380             :  *
   11381             :  * @param ppszResult pointer to which dynamically allocated Mapinfo CoordSys
   11382             :  * definition will be assigned.
   11383             :  *
   11384             :  * @return OGRERR_NONE on success, OGRERR_FAILURE on failure,
   11385             :  * OGRERR_UNSUPPORTED_OPERATION if MITAB library was not linked in.
   11386             :  */
   11387             : 
   11388           7 : OGRErr OGRSpatialReference::exportToMICoordSys(char **ppszResult) const
   11389             : 
   11390             : {
   11391           7 :     *ppszResult = MITABSpatialRef2CoordSys(this);
   11392           7 :     if (*ppszResult != nullptr && strlen(*ppszResult) > 0)
   11393           7 :         return OGRERR_NONE;
   11394             : 
   11395           0 :     return OGRERR_FAILURE;
   11396             : }
   11397             : 
   11398             : /************************************************************************/
   11399             : /*                      OSRImportFromMICoordSys()                       */
   11400             : /************************************************************************/
   11401             : /**
   11402             :  * \brief Import Mapinfo style CoordSys definition.
   11403             :  *
   11404             :  * This method is the equivalent of the C++ method
   11405             :  * OGRSpatialReference::importFromMICoordSys
   11406             :  */
   11407             : 
   11408           3 : OGRErr OSRImportFromMICoordSys(OGRSpatialReferenceH hSRS,
   11409             :                                const char *pszCoordSys)
   11410             : 
   11411             : {
   11412           3 :     VALIDATE_POINTER1(hSRS, "OSRImportFromMICoordSys", OGRERR_FAILURE);
   11413             : 
   11414           3 :     return ToPointer(hSRS)->importFromMICoordSys(pszCoordSys);
   11415             : }
   11416             : 
   11417             : /************************************************************************/
   11418             : /*                        importFromMICoordSys()                        */
   11419             : /************************************************************************/
   11420             : 
   11421             : /**
   11422             :  * \brief Import Mapinfo style CoordSys definition.
   11423             :  *
   11424             :  * The OGRSpatialReference is initialized from the passed Mapinfo style CoordSys
   11425             :  * definition string.
   11426             :  *
   11427             :  * This method is the equivalent of the C function OSRImportFromMICoordSys().
   11428             :  *
   11429             :  * @param pszCoordSys Mapinfo style CoordSys definition string.
   11430             :  *
   11431             :  * @return OGRERR_NONE on success, OGRERR_FAILURE on failure,
   11432             :  * OGRERR_UNSUPPORTED_OPERATION if MITAB library was not linked in.
   11433             :  */
   11434             : 
   11435          17 : OGRErr OGRSpatialReference::importFromMICoordSys(const char *pszCoordSys)
   11436             : 
   11437             : {
   11438          17 :     OGRSpatialReference *poResult = MITABCoordSys2SpatialRef(pszCoordSys);
   11439             : 
   11440          17 :     if (poResult == nullptr)
   11441           0 :         return OGRERR_FAILURE;
   11442             : 
   11443          17 :     *this = *poResult;
   11444          17 :     delete poResult;
   11445             : 
   11446          17 :     return OGRERR_NONE;
   11447             : }
   11448             : 
   11449             : /************************************************************************/
   11450             : /*                        OSRCalcInvFlattening()                        */
   11451             : /************************************************************************/
   11452             : 
   11453             : /**
   11454             :  * \brief Compute inverse flattening from semi-major and semi-minor axis
   11455             :  *
   11456             :  * @param dfSemiMajor Semi-major axis length.
   11457             :  * @param dfSemiMinor Semi-minor axis length.
   11458             :  *
   11459             :  * @return inverse flattening, or 0 if both axis are equal.
   11460             :  */
   11461             : 
   11462        8814 : double OSRCalcInvFlattening(double dfSemiMajor, double dfSemiMinor)
   11463             : {
   11464        8814 :     if (fabs(dfSemiMajor - dfSemiMinor) < 1e-1)
   11465          27 :         return 0;
   11466        8787 :     if (dfSemiMajor <= 0 || dfSemiMinor <= 0 || dfSemiMinor > dfSemiMajor)
   11467             :     {
   11468           0 :         CPLError(CE_Failure, CPLE_IllegalArg,
   11469             :                  "OSRCalcInvFlattening(): Wrong input values");
   11470           0 :         return 0;
   11471             :     }
   11472             : 
   11473        8787 :     return dfSemiMajor / (dfSemiMajor - dfSemiMinor);
   11474             : }
   11475             : 
   11476             : /************************************************************************/
   11477             : /*                        OSRCalcInvFlattening()                        */
   11478             : /************************************************************************/
   11479             : 
   11480             : /**
   11481             :  * \brief Compute semi-minor axis from semi-major axis and inverse flattening.
   11482             :  *
   11483             :  * @param dfSemiMajor Semi-major axis length.
   11484             :  * @param dfInvFlattening Inverse flattening or 0 for sphere.
   11485             :  *
   11486             :  * @return semi-minor axis
   11487             :  */
   11488             : 
   11489         655 : double OSRCalcSemiMinorFromInvFlattening(double dfSemiMajor,
   11490             :                                          double dfInvFlattening)
   11491             : {
   11492         655 :     if (fabs(dfInvFlattening) < 0.000000000001)
   11493         103 :         return dfSemiMajor;
   11494         552 :     if (dfSemiMajor <= 0.0 || dfInvFlattening <= 1.0)
   11495             :     {
   11496           0 :         CPLError(CE_Failure, CPLE_IllegalArg,
   11497             :                  "OSRCalcSemiMinorFromInvFlattening(): Wrong input values");
   11498           0 :         return dfSemiMajor;
   11499             :     }
   11500             : 
   11501         552 :     return dfSemiMajor * (1.0 - 1.0 / dfInvFlattening);
   11502             : }
   11503             : 
   11504             : /************************************************************************/
   11505             : /*                            GetWGS84SRS()                             */
   11506             : /************************************************************************/
   11507             : 
   11508             : static OGRSpatialReference *poSRSWGS84 = nullptr;
   11509             : static CPLMutex *hMutex = nullptr;
   11510             : 
   11511             : /**
   11512             :  * \brief Returns an instance of a SRS object with WGS84 WKT.
   11513             :  *
   11514             :  * Note: the instance will have
   11515             :  * SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER)
   11516             :  *
   11517             :  * The reference counter of the returned object is not increased by this
   11518             :  * operation.
   11519             :  *
   11520             :  * @return instance.
   11521             :  */
   11522             : 
   11523        1003 : OGRSpatialReference *OGRSpatialReference::GetWGS84SRS()
   11524             : {
   11525        1003 :     CPLMutexHolderD(&hMutex);
   11526        1003 :     if (poSRSWGS84 == nullptr)
   11527             :     {
   11528           5 :         poSRSWGS84 = new OGRSpatialReference(SRS_WKT_WGS84_LAT_LONG);
   11529           5 :         poSRSWGS84->SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
   11530             :     }
   11531        2006 :     return poSRSWGS84;
   11532             : }
   11533             : 
   11534             : /************************************************************************/
   11535             : /*                        CleanupSRSWGS84Mutex()                        */
   11536             : /************************************************************************/
   11537             : 
   11538        1141 : static void CleanupSRSWGS84Mutex()
   11539             : {
   11540        1141 :     if (hMutex != nullptr)
   11541             :     {
   11542           3 :         poSRSWGS84->Release();
   11543           3 :         poSRSWGS84 = nullptr;
   11544           3 :         CPLDestroyMutex(hMutex);
   11545           3 :         hMutex = nullptr;
   11546             :     }
   11547        1141 : }
   11548             : 
   11549             : /************************************************************************/
   11550             : /*                         OSRImportFromProj4()                         */
   11551             : /************************************************************************/
   11552             : /**
   11553             :  * \brief Import PROJ coordinate string.
   11554             :  *
   11555             :  * This function is the same as OGRSpatialReference::importFromProj4().
   11556             :  */
   11557         220 : OGRErr OSRImportFromProj4(OGRSpatialReferenceH hSRS, const char *pszProj4)
   11558             : 
   11559             : {
   11560         220 :     VALIDATE_POINTER1(hSRS, "OSRImportFromProj4", OGRERR_FAILURE);
   11561             : 
   11562         220 :     return OGRSpatialReference::FromHandle(hSRS)->importFromProj4(pszProj4);
   11563             : }
   11564             : 
   11565             : /************************************************************************/
   11566             : /*                          importFromProj4()                           */
   11567             : /************************************************************************/
   11568             : 
   11569             : /**
   11570             :  * \brief Import PROJ coordinate string.
   11571             :  *
   11572             :  * The OGRSpatialReference is initialized from the passed PROJs style
   11573             :  * coordinate system string.
   11574             :  *
   11575             :  * Example:
   11576             :  *   pszProj4 = "+proj=utm +zone=11 +datum=WGS84"
   11577             :  *
   11578             :  * It is also possible to import "+init=epsg:n" style definitions. Those are
   11579             :  * a legacy syntax that should be avoided in the future. In particular they will
   11580             :  * result in CRS objects whose axis order might not correspond to the official
   11581             :  * EPSG axis order.
   11582             :  *
   11583             :  * This method is the equivalent of the C function OSRImportFromProj4().
   11584             :  *
   11585             :  * @param pszProj4 the PROJ style string.
   11586             :  *
   11587             :  * @return OGRERR_NONE on success or OGRERR_CORRUPT_DATA on failure.
   11588             :  */
   11589             : 
   11590         774 : OGRErr OGRSpatialReference::importFromProj4(const char *pszProj4)
   11591             : 
   11592             : {
   11593        1548 :     TAKE_OPTIONAL_LOCK();
   11594             : 
   11595         774 :     if (strlen(pszProj4) >= 10000)
   11596             :     {
   11597           1 :         CPLError(CE_Failure, CPLE_AppDefined, "Too long PROJ string");
   11598           1 :         return OGRERR_CORRUPT_DATA;
   11599             :     }
   11600             : 
   11601             :     /* -------------------------------------------------------------------- */
   11602             :     /*      Clear any existing definition.                                  */
   11603             :     /* -------------------------------------------------------------------- */
   11604         773 :     Clear();
   11605             : 
   11606         773 :     CPLString osProj4(pszProj4);
   11607         773 :     if (osProj4.find("type=crs") == std::string::npos)
   11608             :     {
   11609         764 :         osProj4 += " +type=crs";
   11610             :     }
   11611             : 
   11612         775 :     if (osProj4.find("+init=epsg:") != std::string::npos &&
   11613           2 :         getenv("PROJ_USE_PROJ4_INIT_RULES") == nullptr)
   11614             :     {
   11615           2 :         CPLErrorOnce(CE_Warning, CPLE_AppDefined,
   11616             :                      "+init=epsg:XXXX syntax is deprecated. It might return "
   11617             :                      "a CRS with a non-EPSG compliant axis order.");
   11618             :     }
   11619         773 :     proj_context_use_proj4_init_rules(d->getPROJContext(), true);
   11620         773 :     d->setPjCRS(proj_create(d->getPROJContext(), osProj4.c_str()));
   11621         773 :     proj_context_use_proj4_init_rules(d->getPROJContext(), false);
   11622         773 :     return d->m_pj_crs ? OGRERR_NONE : OGRERR_CORRUPT_DATA;
   11623             : }
   11624             : 
   11625             : /************************************************************************/
   11626             : /*                          OSRExportToProj4()                          */
   11627             : /************************************************************************/
   11628             : /**
   11629             :  * \brief Export coordinate system in PROJ.4 legacy format.
   11630             :  *
   11631             :  * \warning Use of this function is discouraged. Its behavior in GDAL &gt;= 3 /
   11632             :  * PROJ &gt;= 6 is significantly different from earlier versions. In particular
   11633             :  * +datum will only encode WGS84, NAD27 and NAD83, and +towgs84/+nadgrids terms
   11634             :  * will be missing most of the time. PROJ strings to encode CRS should be
   11635             :  * considered as a legacy solution. Using a AUTHORITY:CODE or WKT representation
   11636             :  * is the recommended way.
   11637             :  *
   11638             :  * This function is the same as OGRSpatialReference::exportToProj4().
   11639             :  */
   11640         311 : OGRErr CPL_STDCALL OSRExportToProj4(OGRSpatialReferenceH hSRS,
   11641             :                                     char **ppszReturn)
   11642             : 
   11643             : {
   11644         311 :     VALIDATE_POINTER1(hSRS, "OSRExportToProj4", OGRERR_FAILURE);
   11645             : 
   11646         311 :     *ppszReturn = nullptr;
   11647             : 
   11648         311 :     return OGRSpatialReference::FromHandle(hSRS)->exportToProj4(ppszReturn);
   11649             : }
   11650             : 
   11651             : /************************************************************************/
   11652             : /*                           exportToProj4()                            */
   11653             : /************************************************************************/
   11654             : 
   11655             : /**
   11656             :  * \brief Export coordinate system in PROJ.4 legacy format.
   11657             :  *
   11658             :  * \warning Use of this function is discouraged. Its behavior in GDAL &gt;= 3 /
   11659             :  * PROJ &gt;= 6 is significantly different from earlier versions. In particular
   11660             :  * +datum will only encode WGS84, NAD27 and NAD83, and +towgs84/+nadgrids terms
   11661             :  * will be missing most of the time. PROJ strings to encode CRS should be
   11662             :  * considered as a a legacy solution. Using a AUTHORITY:CODE or WKT
   11663             :  * representation is the recommended way.
   11664             :  *
   11665             :  * Converts the loaded coordinate reference system into PROJ format
   11666             :  * to the extent possible.  The string returned in ppszProj4 should be
   11667             :  * deallocated by the caller with CPLFree() when no longer needed.
   11668             :  *
   11669             :  * LOCAL_CS coordinate systems are not translatable.  An empty string
   11670             :  * will be returned along with OGRERR_NONE.
   11671             :  *
   11672             :  * Special processing for Transverse Mercator:
   11673             :  * Starting with GDAL 3.0, if the OSR_USE_APPROX_TMERC configuration option is
   11674             :  * set to YES, the PROJ definition built from the SRS will use the +approx flag
   11675             :  * for the tmerc and utm projection methods, rather than the more accurate
   11676             :  * method.
   11677             :  *
   11678             :  * Starting with GDAL 3.0.3, this method will try to add a +towgs84 parameter,
   11679             :  * if there's none attached yet to the SRS and if the SRS has a EPSG code.
   11680             :  * See the AddGuessedTOWGS84() method for how this +towgs84 parameter may be
   11681             :  * added. This automatic addition may be disabled by setting the
   11682             :  * OSR_ADD_TOWGS84_ON_EXPORT_TO_PROJ4 configuration option to NO.
   11683             :  *
   11684             :  * This method is the equivalent of the C function OSRExportToProj4().
   11685             :  *
   11686             :  * @param ppszProj4 pointer to which dynamically allocated PROJ definition
   11687             :  * will be assigned.
   11688             :  *
   11689             :  * @return OGRERR_NONE on success or an error code on failure.
   11690             :  */
   11691             : 
   11692        1412 : OGRErr OGRSpatialReference::exportToProj4(char **ppszProj4) const
   11693             : 
   11694             : {
   11695             :     // In the past calling this method was thread-safe, even if we never
   11696             :     // guaranteed it. Now proj_as_proj_string() will cache the result
   11697             :     // internally, so this is no longer thread-safe.
   11698        2824 :     std::lock_guard oLock(d->m_mutex);
   11699             : 
   11700        1412 :     d->refreshProjObj();
   11701        1412 :     if (d->m_pj_crs == nullptr || d->m_pjType == PJ_TYPE_ENGINEERING_CRS)
   11702             :     {
   11703           4 :         *ppszProj4 = CPLStrdup("");
   11704           4 :         return OGRERR_FAILURE;
   11705             :     }
   11706             : 
   11707             :     // OSR_USE_ETMERC is here just for legacy
   11708        1408 :     bool bForceApproxTMerc = false;
   11709        1408 :     const char *pszUseETMERC = CPLGetConfigOption("OSR_USE_ETMERC", nullptr);
   11710        1408 :     if (pszUseETMERC && pszUseETMERC[0])
   11711             :     {
   11712           0 :         CPLErrorOnce(CE_Warning, CPLE_AppDefined,
   11713             :                      "OSR_USE_ETMERC is a legacy configuration option, which "
   11714             :                      "now has only effect when set to NO (YES is the default). "
   11715             :                      "Use OSR_USE_APPROX_TMERC=YES instead");
   11716           0 :         bForceApproxTMerc = !CPLTestBool(pszUseETMERC);
   11717             :     }
   11718             :     else
   11719             :     {
   11720             :         const char *pszUseApproxTMERC =
   11721        1408 :             CPLGetConfigOption("OSR_USE_APPROX_TMERC", nullptr);
   11722        1408 :         if (pszUseApproxTMERC && pszUseApproxTMERC[0])
   11723             :         {
   11724           2 :             bForceApproxTMerc = CPLTestBool(pszUseApproxTMERC);
   11725             :         }
   11726             :     }
   11727        1408 :     const char *options[] = {
   11728        1408 :         bForceApproxTMerc ? "USE_APPROX_TMERC=YES" : nullptr, nullptr};
   11729             : 
   11730        1408 :     const char *projString = proj_as_proj_string(
   11731        1408 :         d->getPROJContext(), d->m_pj_crs, PJ_PROJ_4, options);
   11732             : 
   11733        1408 :     PJ *boundCRS = nullptr;
   11734        2812 :     if (projString &&
   11735        1404 :         (strstr(projString, "+datum=") == nullptr ||
   11736        2822 :          d->m_pjType == PJ_TYPE_COMPOUND_CRS) &&
   11737         513 :         CPLTestBool(
   11738             :             CPLGetConfigOption("OSR_ADD_TOWGS84_ON_EXPORT_TO_PROJ4", "YES")))
   11739             :     {
   11740         513 :         boundCRS = GDAL_proj_crs_create_bound_crs_to_WGS84(
   11741         513 :             d->getPROJContext(), d->m_pj_crs, true,
   11742         513 :             strstr(projString, "+datum=") == nullptr);
   11743         513 :         if (boundCRS)
   11744             :         {
   11745         158 :             projString = proj_as_proj_string(d->getPROJContext(), boundCRS,
   11746             :                                              PJ_PROJ_4, options);
   11747             :         }
   11748             :     }
   11749             : 
   11750        1408 :     if (projString == nullptr)
   11751             :     {
   11752           4 :         *ppszProj4 = CPLStrdup("");
   11753           4 :         proj_destroy(boundCRS);
   11754           4 :         return OGRERR_FAILURE;
   11755             :     }
   11756        1404 :     *ppszProj4 = CPLStrdup(projString);
   11757        1404 :     proj_destroy(boundCRS);
   11758        1404 :     char *pszTypeCrs = strstr(*ppszProj4, " +type=crs");
   11759        1404 :     if (pszTypeCrs)
   11760        1404 :         *pszTypeCrs = '\0';
   11761        1404 :     return OGRERR_NONE;
   11762             : }
   11763             : 
   11764             : /************************************************************************/
   11765             : /*                            morphToESRI()                             */
   11766             : /************************************************************************/
   11767             : /**
   11768             :  * \brief Convert in place to ESRI WKT format.
   11769             :  *
   11770             :  * The value nodes of this coordinate system are modified in various manners
   11771             :  * more closely map onto the ESRI concept of WKT format.  This includes
   11772             :  * renaming a variety of projections and arguments, and stripping out
   11773             :  * nodes note recognised by ESRI (like AUTHORITY and AXIS).
   11774             :  *
   11775             :  * \note Since GDAL 3.0, this function has only user-visible effects at
   11776             :  * exportToWkt() time. It is recommended to use instead exportToWkt(char**,
   11777             :  * const char* const char*) const with options having FORMAT=WKT1_ESRI.
   11778             :  *
   11779             :  * This does the same as the C function OSRMorphToESRI().
   11780             :  *
   11781             :  * @return OGRERR_NONE unless something goes badly wrong.
   11782             :  * @deprecated
   11783             :  */
   11784             : 
   11785         235 : OGRErr OGRSpatialReference::morphToESRI()
   11786             : 
   11787             : {
   11788         235 :     TAKE_OPTIONAL_LOCK();
   11789             : 
   11790         235 :     d->refreshProjObj();
   11791         235 :     d->setMorphToESRI(true);
   11792             : 
   11793         470 :     return OGRERR_NONE;
   11794             : }
   11795             : 
   11796             : /************************************************************************/
   11797             : /*                           OSRMorphToESRI()                           */
   11798             : /************************************************************************/
   11799             : 
   11800             : /**
   11801             :  * \brief Convert in place to ESRI WKT format.
   11802             :  *
   11803             :  * This function is the same as the C++ method
   11804             :  * OGRSpatialReference::morphToESRI().
   11805             :  */
   11806          71 : OGRErr OSRMorphToESRI(OGRSpatialReferenceH hSRS)
   11807             : 
   11808             : {
   11809          71 :     VALIDATE_POINTER1(hSRS, "OSRMorphToESRI", OGRERR_FAILURE);
   11810             : 
   11811          71 :     return OGRSpatialReference::FromHandle(hSRS)->morphToESRI();
   11812             : }
   11813             : 
   11814             : /************************************************************************/
   11815             : /*                           morphFromESRI()                            */
   11816             : /************************************************************************/
   11817             : 
   11818             : /**
   11819             :  * \brief Convert in place from ESRI WKT format.
   11820             :  *
   11821             :  * The value notes of this coordinate system are modified in various manners
   11822             :  * to adhere more closely to the WKT standard.  This mostly involves
   11823             :  * translating a variety of ESRI names for projections, arguments and
   11824             :  * datums to "standard" names, as defined by Adam Gawne-Cain's reference
   11825             :  * translation of EPSG to WKT for the CT specification.
   11826             :  *
   11827             :  * \note Since GDAL 3.0, this function is essentially a no-operation, since
   11828             :  * morphing from ESRI is automatically done by importFromWkt(). Its only
   11829             :  * effect is to undo the effect of a potential prior call to morphToESRI().
   11830             :  *
   11831             :  * This does the same as the C function OSRMorphFromESRI().
   11832             :  *
   11833             :  * @return OGRERR_NONE unless something goes badly wrong.
   11834             :  * @deprecated
   11835             :  */
   11836             : 
   11837          21 : OGRErr OGRSpatialReference::morphFromESRI()
   11838             : 
   11839             : {
   11840          21 :     TAKE_OPTIONAL_LOCK();
   11841             : 
   11842          21 :     d->refreshProjObj();
   11843          21 :     d->setMorphToESRI(false);
   11844             : 
   11845          42 :     return OGRERR_NONE;
   11846             : }
   11847             : 
   11848             : /************************************************************************/
   11849             : /*                          OSRMorphFromESRI()                          */
   11850             : /************************************************************************/
   11851             : 
   11852             : /**
   11853             :  * \brief Convert in place from ESRI WKT format.
   11854             :  *
   11855             :  * This function is the same as the C++ method
   11856             :  * OGRSpatialReference::morphFromESRI().
   11857             :  */
   11858          20 : OGRErr OSRMorphFromESRI(OGRSpatialReferenceH hSRS)
   11859             : 
   11860             : {
   11861          20 :     VALIDATE_POINTER1(hSRS, "OSRMorphFromESRI", OGRERR_FAILURE);
   11862             : 
   11863          20 :     return OGRSpatialReference::FromHandle(hSRS)->morphFromESRI();
   11864             : }
   11865             : 
   11866             : /************************************************************************/
   11867             : /*                            FindMatches()                             */
   11868             : /************************************************************************/
   11869             : 
   11870             : /**
   11871             :  * \brief Try to identify a match between the passed SRS and a related SRS
   11872             :  * in a catalog.
   11873             :  *
   11874             :  * Matching may be partial, or may fail.
   11875             :  * Returned entries will be sorted by decreasing match confidence (first
   11876             :  * entry has the highest match confidence).
   11877             :  *
   11878             :  * The exact way matching is done may change in future versions. Starting with
   11879             :  * GDAL 3.0, it relies on PROJ' proj_identify() function.
   11880             :  *
   11881             :  * This method is the same as OSRFindMatches().
   11882             :  *
   11883             :  * @param papszOptions NULL terminated list of options or NULL
   11884             :  * @param pnEntries Output parameter. Number of values in the returned array.
   11885             :  * @param ppanMatchConfidence Output parameter (or NULL). *ppanMatchConfidence
   11886             :  * will be allocated to an array of *pnEntries whose values between 0 and 100
   11887             :  * indicate the confidence in the match. 100 is the highest confidence level.
   11888             :  * The array must be freed with CPLFree().
   11889             :  *
   11890             :  * @return an array of SRS that match the passed SRS, or NULL. Must be freed
   11891             :  * with OSRFreeSRSArray()
   11892             :  *
   11893             :  *
   11894             :  * @see OGRSpatialReference::FindBestMatch()
   11895             :  */
   11896             : OGRSpatialReferenceH *
   11897        1514 : OGRSpatialReference::FindMatches(CSLConstList papszOptions, int *pnEntries,
   11898             :                                  int **ppanMatchConfidence) const
   11899             : {
   11900        3028 :     TAKE_OPTIONAL_LOCK();
   11901             : 
   11902        1514 :     CPL_IGNORE_RET_VAL(papszOptions);
   11903             : 
   11904        1514 :     if (pnEntries)
   11905        1514 :         *pnEntries = 0;
   11906        1514 :     if (ppanMatchConfidence)
   11907        1514 :         *ppanMatchConfidence = nullptr;
   11908             : 
   11909        1514 :     d->refreshProjObj();
   11910        1514 :     if (!d->m_pj_crs)
   11911           0 :         return nullptr;
   11912             : 
   11913        1514 :     int *panConfidence = nullptr;
   11914        1514 :     auto ctxt = d->getPROJContext();
   11915             :     auto list =
   11916        1514 :         proj_identify(ctxt, d->m_pj_crs, nullptr, nullptr, &panConfidence);
   11917        1514 :     if (!list)
   11918           0 :         return nullptr;
   11919             : 
   11920        1514 :     const int nMatches = proj_list_get_count(list);
   11921             : 
   11922        1514 :     if (pnEntries)
   11923        1514 :         *pnEntries = static_cast<int>(nMatches);
   11924             :     OGRSpatialReferenceH *pahRet = static_cast<OGRSpatialReferenceH *>(
   11925        1514 :         CPLCalloc(sizeof(OGRSpatialReferenceH), nMatches + 1));
   11926        1514 :     if (ppanMatchConfidence)
   11927             :     {
   11928        1514 :         *ppanMatchConfidence =
   11929        1514 :             static_cast<int *>(CPLMalloc(sizeof(int) * (nMatches + 1)));
   11930             :     }
   11931             : 
   11932        1514 :     bool bSortAgain = false;
   11933             : 
   11934        4414 :     for (int i = 0; i < nMatches; i++)
   11935             :     {
   11936        2900 :         PJ *obj = proj_list_get(ctxt, list, i);
   11937        2900 :         CPLAssert(obj);
   11938        2900 :         OGRSpatialReference *poSRS = new OGRSpatialReference();
   11939        2900 :         poSRS->d->setPjCRS(obj);
   11940        2900 :         pahRet[i] = ToHandle(poSRS);
   11941             : 
   11942             :         // Identify matches that only differ by axis order
   11943           9 :         if (panConfidence[i] == 50 && GetAxesCount() == 2 &&
   11944        2918 :             poSRS->GetAxesCount() == 2 &&
   11945        2909 :             GetDataAxisToSRSAxisMapping() == std::vector<int>{1, 2})
   11946             :         {
   11947           9 :             OGRAxisOrientation eThisAxis0 = OAO_Other;
   11948           9 :             OGRAxisOrientation eThisAxis1 = OAO_Other;
   11949           9 :             OGRAxisOrientation eSRSAxis0 = OAO_Other;
   11950           9 :             OGRAxisOrientation eSRSAxis1 = OAO_Other;
   11951           9 :             GetAxis(nullptr, 0, &eThisAxis0);
   11952           9 :             GetAxis(nullptr, 1, &eThisAxis1);
   11953           9 :             poSRS->GetAxis(nullptr, 0, &eSRSAxis0);
   11954           9 :             poSRS->GetAxis(nullptr, 1, &eSRSAxis1);
   11955           9 :             if (eThisAxis0 == OAO_East && eThisAxis1 == OAO_North &&
   11956           9 :                 eSRSAxis0 == OAO_North && eSRSAxis1 == OAO_East)
   11957             :             {
   11958             :                 auto pj_crs_normalized =
   11959           9 :                     proj_normalize_for_visualization(ctxt, poSRS->d->m_pj_crs);
   11960           9 :                 if (pj_crs_normalized)
   11961             :                 {
   11962           9 :                     if (proj_is_equivalent_to(d->m_pj_crs, pj_crs_normalized,
   11963           9 :                                               PJ_COMP_EQUIVALENT))
   11964             :                     {
   11965           3 :                         bSortAgain = true;
   11966           3 :                         panConfidence[i] = 90;
   11967           3 :                         poSRS->SetDataAxisToSRSAxisMapping({2, 1});
   11968             :                     }
   11969           9 :                     proj_destroy(pj_crs_normalized);
   11970             :                 }
   11971             :             }
   11972             :         }
   11973             : 
   11974        2900 :         if (ppanMatchConfidence)
   11975        2900 :             (*ppanMatchConfidence)[i] = panConfidence[i];
   11976             :     }
   11977             : 
   11978        1514 :     if (bSortAgain)
   11979             :     {
   11980           3 :         std::vector<int> anIndices;
   11981          12 :         for (int i = 0; i < nMatches; ++i)
   11982           9 :             anIndices.push_back(i);
   11983             : 
   11984           3 :         std::stable_sort(anIndices.begin(), anIndices.end(),
   11985           9 :                          [&panConfidence](int i, int j)
   11986           9 :                          { return panConfidence[i] > panConfidence[j]; });
   11987             : 
   11988             :         OGRSpatialReferenceH *pahRetSorted =
   11989             :             static_cast<OGRSpatialReferenceH *>(
   11990           3 :                 CPLCalloc(sizeof(OGRSpatialReferenceH), nMatches + 1));
   11991          12 :         for (int i = 0; i < nMatches; ++i)
   11992             :         {
   11993           9 :             pahRetSorted[i] = pahRet[anIndices[i]];
   11994           9 :             if (ppanMatchConfidence)
   11995           9 :                 (*ppanMatchConfidence)[i] = panConfidence[anIndices[i]];
   11996             :         }
   11997           3 :         CPLFree(pahRet);
   11998           3 :         pahRet = pahRetSorted;
   11999             :     }
   12000             : 
   12001        1514 :     pahRet[nMatches] = nullptr;
   12002        1514 :     proj_list_destroy(list);
   12003        1514 :     proj_int_list_destroy(panConfidence);
   12004             : 
   12005        1514 :     return pahRet;
   12006             : }
   12007             : 
   12008             : /************************************************************************/
   12009             : /*                          importFromEPSGA()                           */
   12010             : /************************************************************************/
   12011             : 
   12012             : /**
   12013             :  * \brief  Initialize SRS based on EPSG geographic, projected or vertical CRS
   12014             :  * code.
   12015             :  *
   12016             :  * This method will initialize the spatial reference based on the
   12017             :  * passed in EPSG CRS code found in the PROJ database.
   12018             :  *
   12019             :  * Since GDAL 3.0, this method is identical to importFromEPSG().
   12020             :  *
   12021             :  * Before GDAL 3.0.3, this method would try to attach a 3-parameter or
   12022             :  * 7-parameter Helmert transformation to WGS84 when there is one and only one
   12023             :  * such method available for the CRS. This behavior might not always be
   12024             :  * desirable, so starting with GDAL 3.0.3, this is no longer done unless
   12025             :  * the OSR_ADD_TOWGS84_ON_IMPORT_FROM_EPSG configuration option is set to YES.
   12026             :  * The AddGuessedTOWGS84() method can also be used for that purpose.
   12027             :  *
   12028             :  * The method will also by default substitute a deprecated EPSG code by its
   12029             :  * non-deprecated replacement. If this behavior is not desired, the
   12030             :  * OSR_USE_NON_DEPRECATED configuration option can be set to NO.
   12031             :  *
   12032             :  * This method is the same as the C function OSRImportFromEPSGA().
   12033             :  *
   12034             :  * @param nCode a CRS code.
   12035             :  *
   12036             :  * @return OGRERR_NONE on success, or an error code on failure.
   12037             :  */
   12038             : 
   12039       47812 : OGRErr OGRSpatialReference::importFromEPSGA(int nCode)
   12040             : 
   12041             : {
   12042       95624 :     TAKE_OPTIONAL_LOCK();
   12043             : 
   12044       47812 :     Clear();
   12045             : 
   12046             :     const char *pszUseNonDeprecated =
   12047       47812 :         CPLGetConfigOption("OSR_USE_NON_DEPRECATED", nullptr);
   12048             :     const bool bUseNonDeprecated =
   12049       47812 :         CPLTestBool(pszUseNonDeprecated ? pszUseNonDeprecated : "YES");
   12050       47812 :     const bool bAddTOWGS84 = CPLTestBool(
   12051             :         CPLGetConfigOption("OSR_ADD_TOWGS84_ON_IMPORT_FROM_EPSG", "NO"));
   12052       47812 :     auto tlsCache = OSRGetProjTLSCache();
   12053       47812 :     if (tlsCache)
   12054             :     {
   12055             :         auto cachedObj =
   12056       47812 :             tlsCache->GetPJForEPSGCode(nCode, bUseNonDeprecated, bAddTOWGS84);
   12057       47812 :         if (cachedObj)
   12058             :         {
   12059       37509 :             d->setPjCRS(cachedObj);
   12060       37509 :             return OGRERR_NONE;
   12061             :         }
   12062             :     }
   12063             : 
   12064       20606 :     CPLString osCode;
   12065       10303 :     osCode.Printf("%d", nCode);
   12066             :     PJ *obj;
   12067       10303 :     constexpr int FIRST_NON_DEPRECATED_ESRI_CODE = 53001;
   12068       10303 :     if (nCode < FIRST_NON_DEPRECATED_ESRI_CODE)
   12069             :     {
   12070       10298 :         obj = proj_create_from_database(d->getPROJContext(), "EPSG",
   12071             :                                         osCode.c_str(), PJ_CATEGORY_CRS, true,
   12072             :                                         nullptr);
   12073       10298 :         if (!obj)
   12074             :         {
   12075          24 :             return OGRERR_FAILURE;
   12076             :         }
   12077             :     }
   12078             :     else
   12079             :     {
   12080             :         // Likely to be an ESRI CRS...
   12081           5 :         CPLErr eLastErrorType = CE_None;
   12082           5 :         CPLErrorNum eLastErrorNum = CPLE_None;
   12083           5 :         std::string osLastErrorMsg;
   12084           5 :         bool bIsESRI = false;
   12085             :         {
   12086          10 :             CPLErrorStateBackuper oBackuper(CPLQuietErrorHandler);
   12087           5 :             CPLErrorReset();
   12088           5 :             obj = proj_create_from_database(d->getPROJContext(), "EPSG",
   12089             :                                             osCode.c_str(), PJ_CATEGORY_CRS,
   12090             :                                             true, nullptr);
   12091           5 :             if (!obj)
   12092             :             {
   12093           2 :                 eLastErrorType = CPLGetLastErrorType();
   12094           2 :                 eLastErrorNum = CPLGetLastErrorNo();
   12095           2 :                 osLastErrorMsg = CPLGetLastErrorMsg();
   12096           2 :                 obj = proj_create_from_database(d->getPROJContext(), "ESRI",
   12097             :                                                 osCode.c_str(), PJ_CATEGORY_CRS,
   12098             :                                                 true, nullptr);
   12099           2 :                 if (obj)
   12100           1 :                     bIsESRI = true;
   12101             :             }
   12102             :         }
   12103           5 :         if (!obj)
   12104             :         {
   12105           1 :             if (eLastErrorType != CE_None)
   12106           1 :                 CPLError(eLastErrorType, eLastErrorNum, "%s",
   12107             :                          osLastErrorMsg.c_str());
   12108           1 :             return OGRERR_FAILURE;
   12109             :         }
   12110           4 :         if (bIsESRI)
   12111             :         {
   12112           1 :             CPLError(CE_Warning, CPLE_AppDefined,
   12113             :                      "EPSG:%d is not a valid CRS code, but ESRI:%d is. "
   12114             :                      "Assuming ESRI:%d was meant",
   12115             :                      nCode, nCode, nCode);
   12116             :         }
   12117             :     }
   12118             : 
   12119       10278 :     if (bUseNonDeprecated && proj_is_deprecated(obj))
   12120             :     {
   12121         410 :         auto list = proj_get_non_deprecated(d->getPROJContext(), obj);
   12122         410 :         if (list)
   12123             :         {
   12124         410 :             const auto count = proj_list_get_count(list);
   12125         410 :             if (count == 1)
   12126             :             {
   12127             :                 auto nonDeprecated =
   12128         359 :                     proj_list_get(d->getPROJContext(), list, 0);
   12129         359 :                 if (nonDeprecated)
   12130             :                 {
   12131         359 :                     if (pszUseNonDeprecated == nullptr)
   12132             :                     {
   12133             :                         const char *pszNewAuth =
   12134         359 :                             proj_get_id_auth_name(nonDeprecated, 0);
   12135             :                         const char *pszNewCode =
   12136         359 :                             proj_get_id_code(nonDeprecated, 0);
   12137         359 :                         CPLError(CE_Warning, CPLE_AppDefined,
   12138             :                                  "CRS EPSG:%d is deprecated. "
   12139             :                                  "Its non-deprecated replacement %s:%s "
   12140             :                                  "will be used instead. "
   12141             :                                  "To use the original CRS, set the "
   12142             :                                  "OSR_USE_NON_DEPRECATED "
   12143             :                                  "configuration option to NO.",
   12144             :                                  nCode, pszNewAuth ? pszNewAuth : "(null)",
   12145             :                                  pszNewCode ? pszNewCode : "(null)");
   12146             :                     }
   12147         359 :                     proj_destroy(obj);
   12148         359 :                     obj = nonDeprecated;
   12149             :                 }
   12150             :             }
   12151             :         }
   12152         410 :         proj_list_destroy(list);
   12153             :     }
   12154             : 
   12155       10278 :     if (bAddTOWGS84)
   12156             :     {
   12157           1 :         auto boundCRS = proj_crs_create_bound_crs_to_WGS84(d->getPROJContext(),
   12158             :                                                            obj, nullptr);
   12159           1 :         if (boundCRS)
   12160             :         {
   12161           1 :             proj_destroy(obj);
   12162           1 :             obj = boundCRS;
   12163             :         }
   12164             :     }
   12165             : 
   12166       10278 :     d->setPjCRS(obj);
   12167             : 
   12168       10278 :     if (tlsCache)
   12169             :     {
   12170       10278 :         tlsCache->CachePJForEPSGCode(nCode, bUseNonDeprecated, bAddTOWGS84,
   12171             :                                      obj);
   12172             :     }
   12173             : 
   12174       10278 :     return OGRERR_NONE;
   12175             : }
   12176             : 
   12177             : /************************************************************************/
   12178             : /*                         AddGuessedTOWGS84()                          */
   12179             : /************************************************************************/
   12180             : 
   12181             : /**
   12182             :  * \brief  Try to add a a 3-parameter or 7-parameter Helmert transformation
   12183             :  * to WGS84.
   12184             :  *
   12185             :  * This method try to attach a 3-parameter or 7-parameter Helmert transformation
   12186             :  * to WGS84 when there is one and only one such method available for the CRS.
   12187             :  * Note: this is more restrictive to how GDAL < 3 worked.
   12188             :  *
   12189             :  * This method is the same as the C function OSRAddGuessedTOWGS84().
   12190             :  *
   12191             :  * @return OGRERR_NONE on success, or an error code on failure (the CRS has
   12192             :  * already a transformation to WGS84 or none matching could be found).
   12193             :  *
   12194             :  * @since GDAL 3.0.3
   12195             :  */
   12196          18 : OGRErr OGRSpatialReference::AddGuessedTOWGS84()
   12197             : {
   12198          36 :     TAKE_OPTIONAL_LOCK();
   12199             : 
   12200          18 :     d->refreshProjObj();
   12201          18 :     if (!d->m_pj_crs)
   12202           0 :         return OGRERR_FAILURE;
   12203          18 :     auto boundCRS = GDAL_proj_crs_create_bound_crs_to_WGS84(
   12204          18 :         d->getPROJContext(), d->m_pj_crs, false, true);
   12205          18 :     if (!boundCRS)
   12206             :     {
   12207           0 :         return OGRERR_FAILURE;
   12208             :     }
   12209          18 :     d->setPjCRS(boundCRS);
   12210          18 :     return OGRERR_NONE;
   12211             : }
   12212             : 
   12213             : /************************************************************************/
   12214             : /*                         OSRImportFromEPSGA()                         */
   12215             : /************************************************************************/
   12216             : 
   12217             : /**
   12218             :  * \brief  Try to add a a 3-parameter or 7-parameter Helmert transformation
   12219             :  * to WGS84.
   12220             :  *
   12221             :  * This function is the same as OGRSpatialReference::AddGuessedTOWGS84().
   12222             :  *
   12223             :  * @since GDAL 3.0.3
   12224             :  */
   12225             : 
   12226           2 : OGRErr OSRAddGuessedTOWGS84(OGRSpatialReferenceH hSRS)
   12227             : 
   12228             : {
   12229           2 :     VALIDATE_POINTER1(hSRS, "OSRAddGuessedTOWGS84", OGRERR_FAILURE);
   12230             : 
   12231           2 :     return OGRSpatialReference::FromHandle(hSRS)->AddGuessedTOWGS84();
   12232             : }
   12233             : 
   12234             : /************************************************************************/
   12235             : /*                         OSRImportFromEPSGA()                         */
   12236             : /************************************************************************/
   12237             : 
   12238             : /**
   12239             :  * \brief  Initialize SRS based on EPSG geographic, projected or vertical CRS
   12240             :  * code.
   12241             :  *
   12242             :  * This function is the same as OGRSpatialReference::importFromEPSGA().
   12243             :  */
   12244             : 
   12245           3 : OGRErr CPL_STDCALL OSRImportFromEPSGA(OGRSpatialReferenceH hSRS, int nCode)
   12246             : 
   12247             : {
   12248           3 :     VALIDATE_POINTER1(hSRS, "OSRImportFromEPSGA", OGRERR_FAILURE);
   12249             : 
   12250           3 :     return OGRSpatialReference::FromHandle(hSRS)->importFromEPSGA(nCode);
   12251             : }
   12252             : 
   12253             : /************************************************************************/
   12254             : /*                           importFromEPSG()                           */
   12255             : /************************************************************************/
   12256             : 
   12257             : /**
   12258             :  * \brief  Initialize SRS based on EPSG geographic, projected or vertical CRS
   12259             :  * code.
   12260             :  *
   12261             :  * This method will initialize the spatial reference based on the
   12262             :  * passed in EPSG CRS code found in the PROJ database.
   12263             :  *
   12264             :  * This method is the same as the C function OSRImportFromEPSG().
   12265             :  *
   12266             :  * Before GDAL 3.0.3, this method would try to attach a 3-parameter or
   12267             :  * 7-parameter Helmert transformation to WGS84 when there is one and only one
   12268             :  * such method available for the CRS. This behavior might not always be
   12269             :  * desirable, so starting with GDAL 3.0.3, this is no longer done unless
   12270             :  * the OSR_ADD_TOWGS84_ON_IMPORT_FROM_EPSG configuration option is set to YES.
   12271             :  *
   12272             :  * @param nCode a GCS or PCS code from the horizontal coordinate system table.
   12273             :  *
   12274             :  * @return OGRERR_NONE on success, or an error code on failure.
   12275             :  */
   12276             : 
   12277       41957 : OGRErr OGRSpatialReference::importFromEPSG(int nCode)
   12278             : 
   12279             : {
   12280       41957 :     return importFromEPSGA(nCode);
   12281             : }
   12282             : 
   12283             : /************************************************************************/
   12284             : /*                         OSRImportFromEPSG()                          */
   12285             : /************************************************************************/
   12286             : 
   12287             : /**
   12288             :  * \brief  Initialize SRS based on EPSG geographic, projected or vertical CRS
   12289             :  * code.
   12290             :  *
   12291             :  * This function is the same as OGRSpatialReference::importFromEPSG().
   12292             :  */
   12293             : 
   12294        1515 : OGRErr CPL_STDCALL OSRImportFromEPSG(OGRSpatialReferenceH hSRS, int nCode)
   12295             : 
   12296             : {
   12297        1515 :     VALIDATE_POINTER1(hSRS, "OSRImportFromEPSG", OGRERR_FAILURE);
   12298             : 
   12299        1515 :     return OGRSpatialReference::FromHandle(hSRS)->importFromEPSG(nCode);
   12300             : }
   12301             : 
   12302             : /************************************************************************/
   12303             : /*                        EPSGTreatsAsLatLong()                         */
   12304             : /************************************************************************/
   12305             : 
   12306             : /**
   12307             :  * \brief This method returns TRUE if this geographic coordinate
   12308             :  * system should be treated as having lat/long coordinate ordering.
   12309             :  *
   12310             :  * Currently this returns TRUE for all geographic coordinate systems
   12311             :  * with axes set defining it as lat, long (prior to GDAL 3.10, it
   12312             :  * also checked that the CRS had belonged to EPSG authority, but this check
   12313             :  * has now been removed).
   12314             :  *
   12315             :  * \note Important change of behavior since GDAL 3.0. In previous versions,
   12316             :  * geographic CRS imported with importFromEPSG() would cause this method to
   12317             :  * return FALSE on them, whereas now it returns TRUE, since importFromEPSG()
   12318             :  * is now equivalent to importFromEPSGA().
   12319             :  *
   12320             :  * FALSE will be returned for all coordinate systems that are not geographic,
   12321             :  * or whose axes ordering is not latitude, longitude.
   12322             :  *
   12323             :  * This method is the same as the C function OSREPSGTreatsAsLatLong().
   12324             :  *
   12325             :  * @return TRUE or FALSE.
   12326             :  */
   12327             : 
   12328        1188 : int OGRSpatialReference::EPSGTreatsAsLatLong() const
   12329             : 
   12330             : {
   12331        2376 :     TAKE_OPTIONAL_LOCK();
   12332             : 
   12333        1188 :     if (!IsGeographic())
   12334         846 :         return FALSE;
   12335             : 
   12336         342 :     d->demoteFromBoundCRS();
   12337             : 
   12338         342 :     bool ret = false;
   12339         342 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
   12340             :     {
   12341             :         auto horizCRS =
   12342           3 :             proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 0);
   12343           3 :         if (horizCRS)
   12344             :         {
   12345             :             auto cs =
   12346           3 :                 proj_crs_get_coordinate_system(d->getPROJContext(), horizCRS);
   12347           3 :             if (cs)
   12348             :             {
   12349           3 :                 const char *pszDirection = nullptr;
   12350           3 :                 if (proj_cs_get_axis_info(d->getPROJContext(), cs, 0, nullptr,
   12351             :                                           nullptr, &pszDirection, nullptr,
   12352           3 :                                           nullptr, nullptr, nullptr))
   12353             :                 {
   12354           3 :                     if (EQUAL(pszDirection, "north"))
   12355             :                     {
   12356           3 :                         ret = true;
   12357             :                     }
   12358             :                 }
   12359             : 
   12360           3 :                 proj_destroy(cs);
   12361             :             }
   12362             : 
   12363           3 :             proj_destroy(horizCRS);
   12364             :         }
   12365             :     }
   12366             :     else
   12367             :     {
   12368             :         auto cs =
   12369         339 :             proj_crs_get_coordinate_system(d->getPROJContext(), d->m_pj_crs);
   12370         339 :         if (cs)
   12371             :         {
   12372         339 :             const char *pszDirection = nullptr;
   12373         339 :             if (proj_cs_get_axis_info(d->getPROJContext(), cs, 0, nullptr,
   12374             :                                       nullptr, &pszDirection, nullptr, nullptr,
   12375         339 :                                       nullptr, nullptr))
   12376             :             {
   12377         339 :                 if (EQUAL(pszDirection, "north"))
   12378             :                 {
   12379         292 :                     ret = true;
   12380             :                 }
   12381             :             }
   12382             : 
   12383         339 :             proj_destroy(cs);
   12384             :         }
   12385             :     }
   12386         342 :     d->undoDemoteFromBoundCRS();
   12387             : 
   12388         342 :     return ret;
   12389             : }
   12390             : 
   12391             : /************************************************************************/
   12392             : /*                       OSREPSGTreatsAsLatLong()                       */
   12393             : /************************************************************************/
   12394             : 
   12395             : /**
   12396             :  * \brief This function returns TRUE if this geographic coordinate
   12397             :  * system should be treated as having lat/long coordinate ordering.
   12398             :  *
   12399             :  * This function is the same as OGRSpatialReference::OSREPSGTreatsAsLatLong().
   12400             :  */
   12401             : 
   12402         208 : int OSREPSGTreatsAsLatLong(OGRSpatialReferenceH hSRS)
   12403             : 
   12404             : {
   12405         208 :     VALIDATE_POINTER1(hSRS, "OSREPSGTreatsAsLatLong", OGRERR_FAILURE);
   12406             : 
   12407         208 :     return OGRSpatialReference::FromHandle(hSRS)->EPSGTreatsAsLatLong();
   12408             : }
   12409             : 
   12410             : /************************************************************************/
   12411             : /*                    EPSGTreatsAsNorthingEasting()                     */
   12412             : /************************************************************************/
   12413             : 
   12414             : /**
   12415             :  * \brief This method returns TRUE if this projected coordinate
   12416             :  * system should be treated as having northing/easting coordinate ordering.
   12417             :  *
   12418             :  * Currently this returns TRUE for all projected coordinate systems
   12419             :  * with axes set defining it as northing, easting (prior to GDAL 3.10, it
   12420             :  * also checked that the CRS had belonged to EPSG authority, but this check
   12421             :  * has now been removed).
   12422             :  *
   12423             :  * \note Important change of behavior since GDAL 3.0. In previous versions,
   12424             :  * projected CRS with northing, easting axis order imported with
   12425             :  * importFromEPSG() would cause this method to
   12426             :  * return FALSE on them, whereas now it returns TRUE, since importFromEPSG()
   12427             :  * is now equivalent to importFromEPSGA().
   12428             :  *
   12429             :  * FALSE will be returned for all coordinate systems that are not projected,
   12430             :  * or whose axes ordering is not northing, easting.
   12431             :  *
   12432             :  * This method is the same as the C function EPSGTreatsAsNorthingEasting().
   12433             :  *
   12434             :  * @return TRUE or FALSE.
   12435             :  *
   12436             :  */
   12437             : 
   12438         933 : int OGRSpatialReference::EPSGTreatsAsNorthingEasting() const
   12439             : 
   12440             : {
   12441        1866 :     TAKE_OPTIONAL_LOCK();
   12442             : 
   12443         933 :     if (!IsProjected())
   12444          49 :         return FALSE;
   12445             : 
   12446         884 :     d->demoteFromBoundCRS();
   12447             :     PJ *projCRS;
   12448         884 :     const auto ctxt = d->getPROJContext();
   12449         884 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
   12450             :     {
   12451           4 :         projCRS = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 0);
   12452           4 :         if (!projCRS || proj_get_type(projCRS) != PJ_TYPE_PROJECTED_CRS)
   12453             :         {
   12454           0 :             d->undoDemoteFromBoundCRS();
   12455           0 :             proj_destroy(projCRS);
   12456           0 :             return FALSE;
   12457             :         }
   12458             :     }
   12459             :     else
   12460             :     {
   12461         880 :         projCRS = proj_clone(ctxt, d->m_pj_crs);
   12462             :     }
   12463             : 
   12464         884 :     bool ret = false;
   12465         884 :     auto cs = proj_crs_get_coordinate_system(ctxt, projCRS);
   12466         884 :     proj_destroy(projCRS);
   12467         884 :     d->undoDemoteFromBoundCRS();
   12468             : 
   12469         884 :     if (cs)
   12470             :     {
   12471         884 :         ret = isNorthEastAxisOrder(ctxt, cs);
   12472         884 :         proj_destroy(cs);
   12473             :     }
   12474             : 
   12475         884 :     return ret;
   12476             : }
   12477             : 
   12478             : /************************************************************************/
   12479             : /*                   OSREPSGTreatsAsNorthingEasting()                   */
   12480             : /************************************************************************/
   12481             : 
   12482             : /**
   12483             :  * \brief This function returns TRUE if this projected coordinate
   12484             :  * system should be treated as having northing/easting coordinate ordering.
   12485             :  *
   12486             :  * This function is the same as
   12487             :  * OGRSpatialReference::EPSGTreatsAsNorthingEasting().
   12488             :  *
   12489             :  */
   12490             : 
   12491         215 : int OSREPSGTreatsAsNorthingEasting(OGRSpatialReferenceH hSRS)
   12492             : 
   12493             : {
   12494         215 :     VALIDATE_POINTER1(hSRS, "OSREPSGTreatsAsNorthingEasting", OGRERR_FAILURE);
   12495             : 
   12496         215 :     return OGRSpatialReference::FromHandle(hSRS)->EPSGTreatsAsNorthingEasting();
   12497             : }
   12498             : 
   12499             : /************************************************************************/
   12500             : /*                     ImportFromESRIWisconsinWKT()                     */
   12501             : /*                                                                      */
   12502             : /*      Search a ESRI State Plane WKT and import it.                    */
   12503             : /************************************************************************/
   12504             : 
   12505             : // This is only used by the HFA driver and somewhat dubious we really need that
   12506             : // Coming from an old ESRI merge
   12507             : 
   12508           1 : OGRErr OGRSpatialReference::ImportFromESRIWisconsinWKT(const char *prjName,
   12509             :                                                        double centralMeridian,
   12510             :                                                        double latOfOrigin,
   12511             :                                                        const char *unitsName,
   12512             :                                                        const char *crsName)
   12513             : {
   12514           2 :     TAKE_OPTIONAL_LOCK();
   12515             : 
   12516           1 :     if (centralMeridian < -93 || centralMeridian > -87)
   12517           0 :         return OGRERR_FAILURE;
   12518           1 :     if (latOfOrigin < 40 || latOfOrigin > 47)
   12519           0 :         return OGRERR_FAILURE;
   12520             : 
   12521             :     // If the CS name is known.
   12522           1 :     if (!prjName && !unitsName && crsName)
   12523             :     {
   12524           0 :         const PJ_TYPE type = PJ_TYPE_PROJECTED_CRS;
   12525           0 :         PJ_OBJ_LIST *list = proj_create_from_name(
   12526             :             d->getPROJContext(), "ESRI", crsName, &type, 1, false, 1, nullptr);
   12527           0 :         if (list)
   12528             :         {
   12529           0 :             if (proj_list_get_count(list) == 1)
   12530             :             {
   12531           0 :                 auto crs = proj_list_get(d->getPROJContext(), list, 0);
   12532           0 :                 if (crs)
   12533             :                 {
   12534           0 :                     Clear();
   12535           0 :                     d->setPjCRS(crs);
   12536           0 :                     proj_list_destroy(list);
   12537           0 :                     return OGRERR_NONE;
   12538             :                 }
   12539             :             }
   12540           0 :             proj_list_destroy(list);
   12541             :         }
   12542           0 :         return OGRERR_FAILURE;
   12543             :     }
   12544             : 
   12545           1 :     if (prjName == nullptr || unitsName == nullptr)
   12546             :     {
   12547           0 :         return OGRERR_FAILURE;
   12548             :     }
   12549             : 
   12550           1 :     const PJ_TYPE type = PJ_TYPE_PROJECTED_CRS;
   12551           1 :     PJ_OBJ_LIST *list = proj_create_from_name(d->getPROJContext(), "ESRI",
   12552             :                                               "NAD_1983_HARN_WISCRS_", &type, 1,
   12553             :                                               true, 0, nullptr);
   12554           1 :     if (list)
   12555             :     {
   12556           1 :         const auto listSize = proj_list_get_count(list);
   12557           8 :         for (int i = 0; i < listSize; i++)
   12558             :         {
   12559           8 :             auto crs = proj_list_get(d->getPROJContext(), list, i);
   12560           8 :             if (!crs)
   12561             :             {
   12562           7 :                 continue;
   12563             :             }
   12564             : 
   12565           8 :             auto conv = proj_crs_get_coordoperation(d->getPROJContext(), crs);
   12566           8 :             if (!conv)
   12567             :             {
   12568           0 :                 proj_destroy(crs);
   12569           0 :                 continue;
   12570             :             }
   12571           8 :             const char *pszMethodCode = nullptr;
   12572           8 :             proj_coordoperation_get_method_info(
   12573             :                 d->getPROJContext(), conv, nullptr, nullptr, &pszMethodCode);
   12574           8 :             const int nMethodCode = atoi(pszMethodCode ? pszMethodCode : "0");
   12575           8 :             if (!((EQUAL(prjName, SRS_PT_TRANSVERSE_MERCATOR) &&
   12576             :                    nMethodCode == EPSG_CODE_METHOD_TRANSVERSE_MERCATOR) ||
   12577           3 :                   (EQUAL(prjName, "Lambert_Conformal_Conic") &&
   12578             :                    nMethodCode ==
   12579             :                        EPSG_CODE_METHOD_LAMBERT_CONIC_CONFORMAL_1SP)))
   12580             :             {
   12581           3 :                 proj_destroy(crs);
   12582           3 :                 proj_destroy(conv);
   12583           3 :                 continue;
   12584             :             }
   12585             : 
   12586             :             auto coordSys =
   12587           5 :                 proj_crs_get_coordinate_system(d->getPROJContext(), crs);
   12588           5 :             if (!coordSys)
   12589             :             {
   12590           0 :                 proj_destroy(crs);
   12591           0 :                 proj_destroy(conv);
   12592           0 :                 continue;
   12593             :             }
   12594             : 
   12595           5 :             double dfConvFactor = 0.0;
   12596           5 :             proj_cs_get_axis_info(d->getPROJContext(), coordSys, 0, nullptr,
   12597             :                                   nullptr, nullptr, &dfConvFactor, nullptr,
   12598             :                                   nullptr, nullptr);
   12599           5 :             proj_destroy(coordSys);
   12600             : 
   12601           6 :             if ((EQUAL(unitsName, "meters") && dfConvFactor != 1.0) ||
   12602           1 :                 (!EQUAL(unitsName, "meters") &&
   12603           0 :                  std::fabs(dfConvFactor - CPLAtof(SRS_UL_US_FOOT_CONV)) >
   12604             :                      1e-10))
   12605             :             {
   12606           4 :                 proj_destroy(crs);
   12607           4 :                 proj_destroy(conv);
   12608           4 :                 continue;
   12609             :             }
   12610             : 
   12611           1 :             int idx_lat = proj_coordoperation_get_param_index(
   12612             :                 d->getPROJContext(), conv,
   12613             :                 EPSG_NAME_PARAMETER_LATITUDE_OF_NATURAL_ORIGIN);
   12614           1 :             double valueLat = -1000;
   12615           1 :             proj_coordoperation_get_param(d->getPROJContext(), conv, idx_lat,
   12616             :                                           nullptr, nullptr, nullptr, &valueLat,
   12617             :                                           nullptr, nullptr, nullptr, nullptr,
   12618             :                                           nullptr, nullptr);
   12619           1 :             int idx_lon = proj_coordoperation_get_param_index(
   12620             :                 d->getPROJContext(), conv,
   12621             :                 EPSG_NAME_PARAMETER_LONGITUDE_OF_NATURAL_ORIGIN);
   12622           1 :             double valueLong = -1000;
   12623           1 :             proj_coordoperation_get_param(d->getPROJContext(), conv, idx_lon,
   12624             :                                           nullptr, nullptr, nullptr, &valueLong,
   12625             :                                           nullptr, nullptr, nullptr, nullptr,
   12626             :                                           nullptr, nullptr);
   12627           1 :             if (std::fabs(centralMeridian - valueLong) <= 1e-10 &&
   12628           1 :                 std::fabs(latOfOrigin - valueLat) <= 1e-10)
   12629             :             {
   12630           1 :                 Clear();
   12631           1 :                 d->setPjCRS(crs);
   12632           1 :                 proj_list_destroy(list);
   12633           1 :                 proj_destroy(conv);
   12634           1 :                 return OGRERR_NONE;
   12635             :             }
   12636             : 
   12637           0 :             proj_destroy(crs);
   12638           0 :             proj_destroy(conv);
   12639             :         }
   12640           0 :         proj_list_destroy(list);
   12641             :     }
   12642             : 
   12643           0 :     return OGRERR_FAILURE;
   12644             : }
   12645             : 
   12646             : /************************************************************************/
   12647             : /*                       GetAxisMappingStrategy()                       */
   12648             : /************************************************************************/
   12649             : 
   12650             : /** \brief Return the data axis to CRS axis mapping strategy.
   12651             :  *
   12652             :  * <ul>
   12653             :  * <li>OAMS_TRADITIONAL_GIS_ORDER means that for geographic CRS with
   12654             :  *     lat/long order, the data will still be long/lat ordered. Similarly for
   12655             :  *     a projected CRS with northing/easting order, the data will still be
   12656             :  *     easting/northing ordered.
   12657             :  * <li>OAMS_AUTHORITY_COMPLIANT means that the data axis will be identical to
   12658             :  *     the CRS axis.
   12659             :  * <li>OAMS_CUSTOM means that the data axis are customly defined with
   12660             :  *     SetDataAxisToSRSAxisMapping()
   12661             :  * </ul>
   12662             :  * @return the data axis to CRS axis mapping strategy.
   12663             :  * @since GDAL 3.0
   12664             :  */
   12665          93 : OSRAxisMappingStrategy OGRSpatialReference::GetAxisMappingStrategy() const
   12666             : {
   12667          93 :     TAKE_OPTIONAL_LOCK();
   12668             : 
   12669         186 :     return d->m_axisMappingStrategy;
   12670             : }
   12671             : 
   12672             : /************************************************************************/
   12673             : /*                     OSRGetAxisMappingStrategy()                      */
   12674             : /************************************************************************/
   12675             : 
   12676             : /** \brief Return the data axis to CRS axis mapping strategy.
   12677             :  *
   12678             :  * See OGRSpatialReference::GetAxisMappingStrategy()
   12679             :  * @since GDAL 3.0
   12680             :  */
   12681          37 : OSRAxisMappingStrategy OSRGetAxisMappingStrategy(OGRSpatialReferenceH hSRS)
   12682             : {
   12683          37 :     VALIDATE_POINTER1(hSRS, "OSRGetAxisMappingStrategy", OAMS_CUSTOM);
   12684             : 
   12685          37 :     return OGRSpatialReference::FromHandle(hSRS)->GetAxisMappingStrategy();
   12686             : }
   12687             : 
   12688             : /************************************************************************/
   12689             : /*                       SetAxisMappingStrategy()                       */
   12690             : /************************************************************************/
   12691             : 
   12692             : /** \brief Set the data axis to CRS axis mapping strategy.
   12693             :  *
   12694             :  * Starting with GDAL 3.5, the OSR_DEFAULT_AXIS_MAPPING_STRATEGY configuration
   12695             :  * option can be set to "TRADITIONAL_GIS_ORDER" / "AUTHORITY_COMPLIANT" (the
   12696             :  * later being the default value when the option is not set) to control the
   12697             :  * value of the data axis to CRS axis mapping strategy when a
   12698             :  * OSRSpatialReference object is created. Calling SetAxisMappingStrategy() will
   12699             :  * override this default value.
   12700             :  *
   12701             :  * See OGRSpatialReference::GetAxisMappingStrategy()
   12702             :  * @since GDAL 3.0
   12703             :  */
   12704       92946 : void OGRSpatialReference::SetAxisMappingStrategy(
   12705             :     OSRAxisMappingStrategy strategy)
   12706             : {
   12707      185892 :     TAKE_OPTIONAL_LOCK();
   12708             : 
   12709       92946 :     d->m_axisMappingStrategy = strategy;
   12710       92946 :     d->refreshAxisMapping();
   12711       92946 : }
   12712             : 
   12713             : /************************************************************************/
   12714             : /*                     OSRSetAxisMappingStrategy()                      */
   12715             : /************************************************************************/
   12716             : 
   12717             : /** \brief Set the data axis to CRS axis mapping strategy.
   12718             :  *
   12719             :  * See OGRSpatialReference::SetAxisMappingStrategy()
   12720             :  * @since GDAL 3.0
   12721             :  */
   12722         813 : void OSRSetAxisMappingStrategy(OGRSpatialReferenceH hSRS,
   12723             :                                OSRAxisMappingStrategy strategy)
   12724             : {
   12725         813 :     VALIDATE_POINTER0(hSRS, "OSRSetAxisMappingStrategy");
   12726             : 
   12727         813 :     OGRSpatialReference::FromHandle(hSRS)->SetAxisMappingStrategy(strategy);
   12728             : }
   12729             : 
   12730             : /************************************************************************/
   12731             : /*                    GetDataAxisToSRSAxisMapping()                     */
   12732             : /************************************************************************/
   12733             : 
   12734             : /** \brief Return the data axis to SRS axis mapping.
   12735             :  *
   12736             :  * The number of elements of the vector will be the number of axis of the CRS.
   12737             :  * Values start at 1.
   12738             :  *
   12739             :  * If m = GetDataAxisToSRSAxisMapping(), then m[0] is the data axis number
   12740             :  * for the first axis of the CRS.
   12741             :  *
   12742             :  * @since GDAL 3.0
   12743             :  */
   12744    17373000 : const std::vector<int> &OGRSpatialReference::GetDataAxisToSRSAxisMapping() const
   12745             : {
   12746    17373000 :     TAKE_OPTIONAL_LOCK();
   12747             : 
   12748    34746000 :     return d->m_axisMapping;
   12749             : }
   12750             : 
   12751             : /************************************************************************/
   12752             : /*                   OSRGetDataAxisToSRSAxisMapping()                   */
   12753             : /************************************************************************/
   12754             : 
   12755             : /** \brief Return the data axis to SRS axis mapping.
   12756             :  *
   12757             :  * See OGRSpatialReference::GetDataAxisToSRSAxisMapping()
   12758             :  *
   12759             :  * @since GDAL 3.0
   12760             :  */
   12761         105 : const int *OSRGetDataAxisToSRSAxisMapping(OGRSpatialReferenceH hSRS,
   12762             :                                           int *pnCount)
   12763             : {
   12764         105 :     VALIDATE_POINTER1(hSRS, "OSRGetDataAxisToSRSAxisMapping", nullptr);
   12765         105 :     VALIDATE_POINTER1(pnCount, "OSRGetDataAxisToSRSAxisMapping", nullptr);
   12766             : 
   12767             :     const auto &v =
   12768         105 :         OGRSpatialReference::FromHandle(hSRS)->GetDataAxisToSRSAxisMapping();
   12769         105 :     *pnCount = static_cast<int>(v.size());
   12770         105 :     return v.data();
   12771             : }
   12772             : 
   12773             : /************************************************************************/
   12774             : /*                    SetDataAxisToSRSAxisMapping()                     */
   12775             : /************************************************************************/
   12776             : 
   12777             : /** \brief Set a custom data axis to CRS axis mapping.
   12778             :  *
   12779             :  * The number of elements of the mapping vector should be the number of axis
   12780             :  * of the CRS (as returned by GetAxesCount()) (although this method does not
   12781             :  * check that, beyond checking there are at least 2 elements, so that this
   12782             :  * method and setting the CRS can be done in any order).
   12783             :  * This is taken into account by OGRCoordinateTransformation to transform the
   12784             :  * order of coordinates to the order expected by the CRS before
   12785             :  * transformation, and back to the data order after transformation.
   12786             :  *
   12787             :  * The mapping[i] value (one based) represents the data axis number for the i(th)
   12788             :  * axis of the CRS. A negative value can also be used to ask for a sign
   12789             :  * reversal during coordinate transformation (to deal with northing vs southing,
   12790             :  * easting vs westing, heights vs depths).
   12791             :  *
   12792             :  * When used with OGRCoordinateTransformation,
   12793             :  * - the only valid values for mapping[0] (data axis number for the first axis
   12794             :  *   of the CRS) are 1, 2, -1, -2.
   12795             :  * - the only valid values for mapping[1] (data axis number for the second axis
   12796             :  *   of the CRS) are 1, 2, -1, -2.
   12797             :  *  - the only valid values mapping[2] are 3 or -3.
   12798             :  * Note: this method does not validate the values of mapping[].
   12799             :  *
   12800             :  * mapping=[2,1] typically expresses the inversion of axis between the data
   12801             :  * axis and the CRS axis for a 2D CRS.
   12802             :  *
   12803             :  * Automatically implies SetAxisMappingStrategy(OAMS_CUSTOM)
   12804             :  *
   12805             :  * This is the same as the C function OSRSetDataAxisToSRSAxisMapping().
   12806             :  *
   12807             :  * @param mapping The new data axis to CRS axis mapping.
   12808             :  *
   12809             :  * @since GDAL 3.0
   12810             :  * @see OGRSpatialReference::GetDataAxisToSRSAxisMapping()
   12811             :  */
   12812       10030 : OGRErr OGRSpatialReference::SetDataAxisToSRSAxisMapping(
   12813             :     const std::vector<int> &mapping)
   12814             : {
   12815       20060 :     TAKE_OPTIONAL_LOCK();
   12816             : 
   12817       10030 :     if (mapping.size() < 2)
   12818           0 :         return OGRERR_FAILURE;
   12819       10030 :     d->m_axisMappingStrategy = OAMS_CUSTOM;
   12820       10030 :     d->m_axisMapping = mapping;
   12821       10030 :     return OGRERR_NONE;
   12822             : }
   12823             : 
   12824             : /************************************************************************/
   12825             : /*                   OSRSetDataAxisToSRSAxisMapping()                   */
   12826             : /************************************************************************/
   12827             : 
   12828             : /** \brief Set a custom data axis to CRS axis mapping.
   12829             :  *
   12830             :  * Automatically implies SetAxisMappingStrategy(OAMS_CUSTOM)
   12831             :  *
   12832             :  * This is the same as the C++ method
   12833             :  * OGRSpatialReference::SetDataAxisToSRSAxisMapping()
   12834             :  *
   12835             :  * @since GDAL 3.1
   12836             :  */
   12837          15 : OGRErr OSRSetDataAxisToSRSAxisMapping(OGRSpatialReferenceH hSRS,
   12838             :                                       int nMappingSize, const int *panMapping)
   12839             : {
   12840          15 :     VALIDATE_POINTER1(hSRS, "OSRSetDataAxisToSRSAxisMapping", OGRERR_FAILURE);
   12841          15 :     VALIDATE_POINTER1(panMapping, "OSRSetDataAxisToSRSAxisMapping",
   12842             :                       OGRERR_FAILURE);
   12843             : 
   12844          15 :     if (nMappingSize < 0)
   12845           0 :         return OGRERR_FAILURE;
   12846             : 
   12847          30 :     std::vector<int> mapping(nMappingSize);
   12848          15 :     if (nMappingSize)
   12849          15 :         memcpy(&mapping[0], panMapping, nMappingSize * sizeof(int));
   12850          15 :     return OGRSpatialReference::FromHandle(hSRS)->SetDataAxisToSRSAxisMapping(
   12851          15 :         mapping);
   12852             : }
   12853             : 
   12854             : /************************************************************************/
   12855             : /*                            GetAreaOfUse()                            */
   12856             : /************************************************************************/
   12857             : 
   12858             : /** \brief Return the area of use of the CRS.
   12859             :  *
   12860             :  * This method is the same as the OSRGetAreaOfUse() function.
   12861             :  *
   12862             :  * @param pdfWestLongitudeDeg Pointer to a double to receive the western-most
   12863             :  * longitude, expressed in degree. Might be NULL. If the returned value is
   12864             :  * -1000, the bounding box is unknown.
   12865             :  * @param pdfSouthLatitudeDeg Pointer to a double to receive the southern-most
   12866             :  * latitude, expressed in degree. Might be NULL. If the returned value is -1000,
   12867             :  * the bounding box is unknown.
   12868             :  * @param pdfEastLongitudeDeg Pointer to a double to receive the eastern-most
   12869             :  * longitude, expressed in degree. Might be NULL. If the returned value is
   12870             :  * -1000, the bounding box is unknown.
   12871             :  * @param pdfNorthLatitudeDeg Pointer to a double to receive the northern-most
   12872             :  * latitude, expressed in degree. Might be NULL. If the returned value is -1000,
   12873             :  * the bounding box is unknown.
   12874             :  * @param ppszAreaName Pointer to a string to receive the name of the area of
   12875             :  * use. Might be NULL. Note that *ppszAreaName is short-lived and might be
   12876             :  * invalidated by further calls.
   12877             :  * @return true in case of success
   12878             :  * @since GDAL 3.0
   12879             :  */
   12880          75 : bool OGRSpatialReference::GetAreaOfUse(double *pdfWestLongitudeDeg,
   12881             :                                        double *pdfSouthLatitudeDeg,
   12882             :                                        double *pdfEastLongitudeDeg,
   12883             :                                        double *pdfNorthLatitudeDeg,
   12884             :                                        const char **ppszAreaName) const
   12885             : {
   12886         150 :     TAKE_OPTIONAL_LOCK();
   12887             : 
   12888          75 :     d->refreshProjObj();
   12889          75 :     if (!d->m_pj_crs)
   12890             :     {
   12891           0 :         return false;
   12892             :     }
   12893          75 :     d->demoteFromBoundCRS();
   12894          75 :     const char *pszAreaName = nullptr;
   12895          75 :     int bSuccess = proj_get_area_of_use(
   12896          75 :         d->getPROJContext(), d->m_pj_crs, pdfWestLongitudeDeg,
   12897             :         pdfSouthLatitudeDeg, pdfEastLongitudeDeg, pdfNorthLatitudeDeg,
   12898             :         &pszAreaName);
   12899          75 :     d->undoDemoteFromBoundCRS();
   12900          75 :     d->m_osAreaName = pszAreaName ? pszAreaName : "";
   12901          75 :     if (ppszAreaName)
   12902          23 :         *ppszAreaName = d->m_osAreaName.c_str();
   12903          75 :     return CPL_TO_BOOL(bSuccess);
   12904             : }
   12905             : 
   12906             : /************************************************************************/
   12907             : /*                            GetAreaOfUse()                            */
   12908             : /************************************************************************/
   12909             : 
   12910             : /** \brief Return the area of use of the CRS.
   12911             :  *
   12912             :  * This function is the same as the OGRSpatialReference::GetAreaOfUse() method.
   12913             :  *
   12914             :  * @since GDAL 3.0
   12915             :  */
   12916           1 : int OSRGetAreaOfUse(OGRSpatialReferenceH hSRS, double *pdfWestLongitudeDeg,
   12917             :                     double *pdfSouthLatitudeDeg, double *pdfEastLongitudeDeg,
   12918             :                     double *pdfNorthLatitudeDeg, const char **ppszAreaName)
   12919             : {
   12920           1 :     VALIDATE_POINTER1(hSRS, "OSRGetAreaOfUse", FALSE);
   12921             : 
   12922           1 :     return OGRSpatialReference::FromHandle(hSRS)->GetAreaOfUse(
   12923             :         pdfWestLongitudeDeg, pdfSouthLatitudeDeg, pdfEastLongitudeDeg,
   12924           1 :         pdfNorthLatitudeDeg, ppszAreaName);
   12925             : }
   12926             : 
   12927             : /************************************************************************/
   12928             : /*                   OSRGetCRSInfoListFromDatabase()                    */
   12929             : /************************************************************************/
   12930             : 
   12931             : /** \brief Enumerate CRS objects from the database.
   12932             :  *
   12933             :  * The returned object is an array of OSRCRSInfo* pointers, whose last
   12934             :  * entry is NULL. This array should be freed with OSRDestroyCRSInfoList()
   12935             :  *
   12936             :  * @param pszAuthName Authority name, used to restrict the search.
   12937             :  * Or NULL for all authorities.
   12938             :  * @param params Additional criteria. Must be set to NULL for now.
   12939             :  * @param pnOutResultCount Output parameter pointing to an integer to receive
   12940             :  * the size of the result list. Might be NULL
   12941             :  * @return an array of OSRCRSInfo* pointers to be freed with
   12942             :  * OSRDestroyCRSInfoList(), or NULL in case of error.
   12943             :  *
   12944             :  * @since GDAL 3.0
   12945             :  */
   12946             : OSRCRSInfo **
   12947          24 : OSRGetCRSInfoListFromDatabase(const char *pszAuthName,
   12948             :                               CPL_UNUSED const OSRCRSListParameters *params,
   12949             :                               int *pnOutResultCount)
   12950             : {
   12951          24 :     int nResultCount = 0;
   12952          24 :     auto projList = proj_get_crs_info_list_from_database(
   12953             :         OSRGetProjTLSContext(), pszAuthName, nullptr, &nResultCount);
   12954          24 :     if (pnOutResultCount)
   12955          24 :         *pnOutResultCount = nResultCount;
   12956          24 :     if (!projList)
   12957             :     {
   12958           0 :         return nullptr;
   12959             :     }
   12960          24 :     auto res = new OSRCRSInfo *[nResultCount + 1];
   12961       89181 :     for (int i = 0; i < nResultCount; i++)
   12962             :     {
   12963       89157 :         res[i] = new OSRCRSInfo;
   12964      178314 :         res[i]->pszAuthName = projList[i]->auth_name
   12965       89157 :                                   ? CPLStrdup(projList[i]->auth_name)
   12966             :                                   : nullptr;
   12967       89157 :         res[i]->pszCode =
   12968       89157 :             projList[i]->code ? CPLStrdup(projList[i]->code) : nullptr;
   12969       89157 :         res[i]->pszName =
   12970       89157 :             projList[i]->name ? CPLStrdup(projList[i]->name) : nullptr;
   12971       89157 :         res[i]->eType = OSR_CRS_TYPE_OTHER;
   12972       89157 :         switch (projList[i]->type)
   12973             :         {
   12974        8727 :             case PJ_TYPE_GEOGRAPHIC_2D_CRS:
   12975        8727 :                 res[i]->eType = OSR_CRS_TYPE_GEOGRAPHIC_2D;
   12976        8727 :                 break;
   12977        2811 :             case PJ_TYPE_GEOGRAPHIC_3D_CRS:
   12978        2811 :                 res[i]->eType = OSR_CRS_TYPE_GEOGRAPHIC_3D;
   12979        2811 :                 break;
   12980        3066 :             case PJ_TYPE_GEOCENTRIC_CRS:
   12981        3066 :                 res[i]->eType = OSR_CRS_TYPE_GEOCENTRIC;
   12982        3066 :                 break;
   12983       67740 :             case PJ_TYPE_PROJECTED_CRS:
   12984       67740 :                 res[i]->eType = OSR_CRS_TYPE_PROJECTED;
   12985       67740 :                 break;
   12986        2808 :             case PJ_TYPE_VERTICAL_CRS:
   12987        2808 :                 res[i]->eType = OSR_CRS_TYPE_VERTICAL;
   12988        2808 :                 break;
   12989        4005 :             case PJ_TYPE_COMPOUND_CRS:
   12990        4005 :                 res[i]->eType = OSR_CRS_TYPE_COMPOUND;
   12991        4005 :                 break;
   12992           0 :             default:
   12993           0 :                 break;
   12994             :         }
   12995       89157 :         res[i]->bDeprecated = projList[i]->deprecated;
   12996       89157 :         res[i]->bBboxValid = projList[i]->bbox_valid;
   12997       89157 :         res[i]->dfWestLongitudeDeg = projList[i]->west_lon_degree;
   12998       89157 :         res[i]->dfSouthLatitudeDeg = projList[i]->south_lat_degree;
   12999       89157 :         res[i]->dfEastLongitudeDeg = projList[i]->east_lon_degree;
   13000       89157 :         res[i]->dfNorthLatitudeDeg = projList[i]->north_lat_degree;
   13001      178314 :         res[i]->pszAreaName = projList[i]->area_name
   13002       89157 :                                   ? CPLStrdup(projList[i]->area_name)
   13003             :                                   : nullptr;
   13004       89157 :         res[i]->pszProjectionMethod =
   13005       89157 :             projList[i]->projection_method_name
   13006       89157 :                 ? CPLStrdup(projList[i]->projection_method_name)
   13007             :                 : nullptr;
   13008             : #if PROJ_AT_LEAST_VERSION(8, 1, 0)
   13009             :         res[i]->pszCelestialBodyName =
   13010             :             projList[i]->celestial_body_name
   13011             :                 ? CPLStrdup(projList[i]->celestial_body_name)
   13012             :                 : nullptr;
   13013             : #else
   13014       89157 :         res[i]->pszCelestialBodyName =
   13015       89157 :             res[i]->pszAuthName && EQUAL(res[i]->pszAuthName, "EPSG")
   13016      178314 :                 ? CPLStrdup("Earth")
   13017             :                 : nullptr;
   13018             : #endif
   13019             :     }
   13020          24 :     res[nResultCount] = nullptr;
   13021          24 :     proj_crs_info_list_destroy(projList);
   13022          24 :     return res;
   13023             : }
   13024             : 
   13025             : /************************************************************************/
   13026             : /*                       OSRDestroyCRSInfoList()                        */
   13027             : /************************************************************************/
   13028             : 
   13029             : /** \brief Destroy the result returned by
   13030             :  * OSRGetCRSInfoListFromDatabase().
   13031             :  *
   13032             :  * @since GDAL 3.0
   13033             :  */
   13034          24 : void OSRDestroyCRSInfoList(OSRCRSInfo **list)
   13035             : {
   13036          24 :     if (list)
   13037             :     {
   13038       89181 :         for (int i = 0; list[i] != nullptr; i++)
   13039             :         {
   13040       89157 :             CPLFree(list[i]->pszAuthName);
   13041       89157 :             CPLFree(list[i]->pszCode);
   13042       89157 :             CPLFree(list[i]->pszName);
   13043       89157 :             CPLFree(list[i]->pszAreaName);
   13044       89157 :             CPLFree(list[i]->pszProjectionMethod);
   13045       89157 :             CPLFree(list[i]->pszCelestialBodyName);
   13046       89157 :             delete list[i];
   13047             :         }
   13048          24 :         delete[] list;
   13049             :     }
   13050          24 : }
   13051             : 
   13052             : /************************************************************************/
   13053             : /*                  OSRGetAuthorityListFromDatabase()                   */
   13054             : /************************************************************************/
   13055             : 
   13056             : /** \brief Return the list of CRS authorities used in the PROJ database.
   13057             :  *
   13058             :  * Such as "EPSG", "ESRI", "PROJ", "IGNF", "IAU_2015", etc.
   13059             :  *
   13060             :  * This is a direct mapping of https://proj.org/en/latest/development/reference/functions.html#c.proj_get_authorities_from_database
   13061             :  *
   13062             :  * @return nullptr in case of error, or a NULL terminated list of strings to
   13063             :  * free with CSLDestroy()
   13064             :  * @since GDAL 3.10
   13065             :  */
   13066           4 : char **OSRGetAuthorityListFromDatabase()
   13067             : {
   13068             :     PROJ_STRING_LIST list =
   13069           4 :         proj_get_authorities_from_database(OSRGetProjTLSContext());
   13070           4 :     if (!list)
   13071             :     {
   13072           0 :         return nullptr;
   13073             :     }
   13074           4 :     int count = 0;
   13075          24 :     while (list[count])
   13076          20 :         ++count;
   13077           4 :     char **res = static_cast<char **>(CPLCalloc(count + 1, sizeof(char *)));
   13078          24 :     for (int i = 0; i < count; ++i)
   13079          20 :         res[i] = CPLStrdup(list[i]);
   13080           4 :     proj_string_list_destroy(list);
   13081           4 :     return res;
   13082             : }
   13083             : 
   13084             : /************************************************************************/
   13085             : /*                 UpdateCoordinateSystemFromGeogCRS()                  */
   13086             : /************************************************************************/
   13087             : 
   13088             : /*! @cond Doxygen_Suppress */
   13089             : /** \brief Used by gt_wkt_srs.cpp to create projected 3D CRS. Internal use only
   13090             :  *
   13091             :  * @since GDAL 3.1
   13092             :  */
   13093           1 : void OGRSpatialReference::UpdateCoordinateSystemFromGeogCRS()
   13094             : {
   13095           1 :     TAKE_OPTIONAL_LOCK();
   13096             : 
   13097           1 :     d->refreshProjObj();
   13098           1 :     if (!d->m_pj_crs)
   13099           0 :         return;
   13100           1 :     if (d->m_pjType != PJ_TYPE_PROJECTED_CRS)
   13101           0 :         return;
   13102           1 :     if (GetAxesCount() == 3)
   13103           0 :         return;
   13104           1 :     auto ctxt = d->getPROJContext();
   13105           1 :     auto baseCRS = proj_crs_get_geodetic_crs(ctxt, d->m_pj_crs);
   13106           1 :     if (!baseCRS)
   13107           0 :         return;
   13108           1 :     auto baseCRSCS = proj_crs_get_coordinate_system(ctxt, baseCRS);
   13109           1 :     if (!baseCRSCS)
   13110             :     {
   13111           0 :         proj_destroy(baseCRS);
   13112           0 :         return;
   13113             :     }
   13114           1 :     if (proj_cs_get_axis_count(ctxt, baseCRSCS) != 3)
   13115             :     {
   13116           0 :         proj_destroy(baseCRSCS);
   13117           0 :         proj_destroy(baseCRS);
   13118           0 :         return;
   13119             :     }
   13120           1 :     auto projCS = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
   13121           1 :     if (!projCS || proj_cs_get_axis_count(ctxt, projCS) != 2)
   13122             :     {
   13123           0 :         proj_destroy(baseCRSCS);
   13124           0 :         proj_destroy(baseCRS);
   13125           0 :         proj_destroy(projCS);
   13126           0 :         return;
   13127             :     }
   13128             : 
   13129             :     PJ_AXIS_DESCRIPTION axis[3];
   13130           4 :     for (int i = 0; i < 3; i++)
   13131             :     {
   13132           3 :         const char *name = nullptr;
   13133           3 :         const char *abbreviation = nullptr;
   13134           3 :         const char *direction = nullptr;
   13135           3 :         double unit_conv_factor = 0;
   13136           3 :         const char *unit_name = nullptr;
   13137           3 :         proj_cs_get_axis_info(ctxt, i < 2 ? projCS : baseCRSCS, i, &name,
   13138             :                               &abbreviation, &direction, &unit_conv_factor,
   13139             :                               &unit_name, nullptr, nullptr);
   13140           3 :         axis[i].name = CPLStrdup(name);
   13141           3 :         axis[i].abbreviation = CPLStrdup(abbreviation);
   13142           3 :         axis[i].direction = CPLStrdup(direction);
   13143           3 :         axis[i].unit_name = CPLStrdup(unit_name);
   13144           3 :         axis[i].unit_conv_factor = unit_conv_factor;
   13145           3 :         axis[i].unit_type = PJ_UT_LINEAR;
   13146             :     }
   13147           1 :     proj_destroy(baseCRSCS);
   13148           1 :     proj_destroy(projCS);
   13149           1 :     auto cs = proj_create_cs(ctxt, PJ_CS_TYPE_CARTESIAN, 3, axis);
   13150           4 :     for (int i = 0; i < 3; i++)
   13151             :     {
   13152           3 :         CPLFree(axis[i].name);
   13153           3 :         CPLFree(axis[i].abbreviation);
   13154           3 :         CPLFree(axis[i].direction);
   13155           3 :         CPLFree(axis[i].unit_name);
   13156             :     }
   13157           1 :     if (!cs)
   13158             :     {
   13159           0 :         proj_destroy(baseCRS);
   13160           0 :         return;
   13161             :     }
   13162           1 :     auto conversion = proj_crs_get_coordoperation(ctxt, d->m_pj_crs);
   13163           1 :     auto crs = proj_create_projected_crs(ctxt, d->getProjCRSName(), baseCRS,
   13164             :                                          conversion, cs);
   13165           1 :     proj_destroy(baseCRS);
   13166           1 :     proj_destroy(conversion);
   13167           1 :     proj_destroy(cs);
   13168           1 :     d->setPjCRS(crs);
   13169             : }
   13170             : 
   13171             : /*! @endcond */
   13172             : 
   13173             : /************************************************************************/
   13174             : /*                            PromoteTo3D()                             */
   13175             : /************************************************************************/
   13176             : 
   13177             : /** \brief "Promotes" a 2D CRS to a 3D CRS one.
   13178             :  *
   13179             :  * The new axis will be ellipsoidal height, oriented upwards, and with metre
   13180             :  * units.
   13181             :  *
   13182             :  * @param pszName New name for the CRS. If set to NULL, the previous name will
   13183             :  * be used.
   13184             :  * @return OGRERR_NONE if no error occurred.
   13185             :  * @since GDAL 3.1 and PROJ 6.3
   13186             :  */
   13187          42 : OGRErr OGRSpatialReference::PromoteTo3D(const char *pszName)
   13188             : {
   13189          84 :     TAKE_OPTIONAL_LOCK();
   13190             : 
   13191          42 :     d->refreshProjObj();
   13192          42 :     if (!d->m_pj_crs)
   13193           0 :         return OGRERR_FAILURE;
   13194             :     auto newPj =
   13195          42 :         proj_crs_promote_to_3D(d->getPROJContext(), pszName, d->m_pj_crs);
   13196          42 :     if (!newPj)
   13197           0 :         return OGRERR_FAILURE;
   13198          42 :     d->setPjCRS(newPj);
   13199          42 :     return OGRERR_NONE;
   13200             : }
   13201             : 
   13202             : /************************************************************************/
   13203             : /*                           OSRPromoteTo3D()                           */
   13204             : /************************************************************************/
   13205             : 
   13206             : /** \brief "Promotes" a 2D CRS to a 3D CRS one.
   13207             :  *
   13208             :  * See OGRSpatialReference::PromoteTo3D()
   13209             :  *
   13210             :  * @since GDAL 3.1 and PROJ 6.3
   13211             :  */
   13212           3 : OGRErr OSRPromoteTo3D(OGRSpatialReferenceH hSRS, const char *pszName)
   13213             : {
   13214           3 :     VALIDATE_POINTER1(hSRS, "OSRPromoteTo3D", OGRERR_FAILURE);
   13215             : 
   13216           3 :     return OGRSpatialReference::FromHandle(hSRS)->PromoteTo3D(pszName);
   13217             : }
   13218             : 
   13219             : /************************************************************************/
   13220             : /*                             DemoteTo2D()                             */
   13221             : /************************************************************************/
   13222             : 
   13223             : /** \brief "Demote" a 3D CRS to a 2D CRS one.
   13224             :  *
   13225             :  * @param pszName New name for the CRS. If set to NULL, the previous name will
   13226             :  * be used.
   13227             :  * @return OGRERR_NONE if no error occurred.
   13228             :  * @since GDAL 3.2 and PROJ 6.3
   13229             :  */
   13230          47 : OGRErr OGRSpatialReference::DemoteTo2D(const char *pszName)
   13231             : {
   13232          94 :     TAKE_OPTIONAL_LOCK();
   13233             : 
   13234          47 :     d->refreshProjObj();
   13235          47 :     if (!d->m_pj_crs)
   13236           0 :         return OGRERR_FAILURE;
   13237             :     auto newPj =
   13238          47 :         proj_crs_demote_to_2D(d->getPROJContext(), pszName, d->m_pj_crs);
   13239          47 :     if (!newPj)
   13240           0 :         return OGRERR_FAILURE;
   13241          47 :     d->setPjCRS(newPj);
   13242          47 :     return OGRERR_NONE;
   13243             : }
   13244             : 
   13245             : /************************************************************************/
   13246             : /*                           OSRDemoteTo2D()                            */
   13247             : /************************************************************************/
   13248             : 
   13249             : /** \brief "Demote" a 3D CRS to a 2D CRS one.
   13250             :  *
   13251             :  * See OGRSpatialReference::DemoteTo2D()
   13252             :  *
   13253             :  * @since GDAL 3.2 and PROJ 6.3
   13254             :  */
   13255           1 : OGRErr OSRDemoteTo2D(OGRSpatialReferenceH hSRS, const char *pszName)
   13256             : {
   13257           1 :     VALIDATE_POINTER1(hSRS, "OSRDemoteTo2D", OGRERR_FAILURE);
   13258             : 
   13259           1 :     return OGRSpatialReference::FromHandle(hSRS)->DemoteTo2D(pszName);
   13260             : }
   13261             : 
   13262             : /************************************************************************/
   13263             : /*                           GetEPSGGeogCS()                            */
   13264             : /************************************************************************/
   13265             : 
   13266             : /** Try to establish what the EPSG code for this coordinate systems
   13267             :  * GEOGCS might be.  Returns -1 if no reasonable guess can be made.
   13268             :  *
   13269             :  * @return EPSG code
   13270             :  */
   13271             : 
   13272         344 : int OGRSpatialReference::GetEPSGGeogCS() const
   13273             : 
   13274             : {
   13275         688 :     TAKE_OPTIONAL_LOCK();
   13276             : 
   13277             :     /* -------------------------------------------------------------------- */
   13278             :     /*      Check axis order.                                               */
   13279             :     /* -------------------------------------------------------------------- */
   13280         688 :     auto poGeogCRS = std::unique_ptr<OGRSpatialReference>(CloneGeogCS());
   13281         344 :     if (!poGeogCRS)
   13282           0 :         return -1;
   13283             : 
   13284         344 :     bool ret = false;
   13285         344 :     poGeogCRS->d->demoteFromBoundCRS();
   13286         344 :     auto cs = proj_crs_get_coordinate_system(d->getPROJContext(),
   13287         344 :                                              poGeogCRS->d->m_pj_crs);
   13288         344 :     poGeogCRS->d->undoDemoteFromBoundCRS();
   13289         344 :     if (cs)
   13290             :     {
   13291         344 :         const char *pszDirection = nullptr;
   13292         344 :         if (proj_cs_get_axis_info(d->getPROJContext(), cs, 0, nullptr, nullptr,
   13293             :                                   &pszDirection, nullptr, nullptr, nullptr,
   13294         344 :                                   nullptr))
   13295             :         {
   13296         344 :             if (EQUAL(pszDirection, "north"))
   13297             :             {
   13298         143 :                 ret = true;
   13299             :             }
   13300             :         }
   13301             : 
   13302         344 :         proj_destroy(cs);
   13303             :     }
   13304         344 :     if (!ret)
   13305         201 :         return -1;
   13306             : 
   13307             :     /* -------------------------------------------------------------------- */
   13308             :     /*      Do we already have it?                                          */
   13309             :     /* -------------------------------------------------------------------- */
   13310         143 :     const char *pszAuthName = GetAuthorityName("GEOGCS");
   13311         143 :     if (pszAuthName != nullptr && EQUAL(pszAuthName, "epsg"))
   13312          66 :         return atoi(GetAuthorityCode("GEOGCS"));
   13313             : 
   13314             :     /* -------------------------------------------------------------------- */
   13315             :     /*      Get the datum and geogcs names.                                 */
   13316             :     /* -------------------------------------------------------------------- */
   13317             : 
   13318          77 :     const char *pszGEOGCS = GetAttrValue("GEOGCS");
   13319          77 :     const char *pszDatum = GetAttrValue("DATUM");
   13320             : 
   13321             :     // We can only operate on coordinate systems with a geogcs.
   13322         154 :     OGRSpatialReference oSRSTmp;
   13323          77 :     if (pszGEOGCS == nullptr || pszDatum == nullptr)
   13324             :     {
   13325             :         // Calling GetAttrValue("GEOGCS") will fail on a CRS that can't be
   13326             :         // export to WKT1, so try to extract the geographic CRS through PROJ
   13327             :         // API with CopyGeogCSFrom() and get the nodes' values from it.
   13328           1 :         oSRSTmp.CopyGeogCSFrom(this);
   13329           1 :         pszGEOGCS = oSRSTmp.GetAttrValue("GEOGCS");
   13330           1 :         pszDatum = oSRSTmp.GetAttrValue("DATUM");
   13331           1 :         if (pszGEOGCS == nullptr || pszDatum == nullptr)
   13332             :         {
   13333           0 :             return -1;
   13334             :         }
   13335             :     }
   13336             : 
   13337             :     // Lookup geographic CRS name
   13338          77 :     const PJ_TYPE type = PJ_TYPE_GEOGRAPHIC_2D_CRS;
   13339          77 :     PJ_OBJ_LIST *list = proj_create_from_name(
   13340             :         d->getPROJContext(), nullptr, pszGEOGCS, &type, 1, false, 1, nullptr);
   13341          77 :     if (list)
   13342             :     {
   13343          77 :         const auto listSize = proj_list_get_count(list);
   13344          77 :         if (listSize == 1)
   13345             :         {
   13346          49 :             auto crs = proj_list_get(d->getPROJContext(), list, 0);
   13347          49 :             if (crs)
   13348             :             {
   13349          49 :                 pszAuthName = proj_get_id_auth_name(crs, 0);
   13350          49 :                 const char *pszCode = proj_get_id_code(crs, 0);
   13351          49 :                 if (pszAuthName && pszCode && EQUAL(pszAuthName, "EPSG"))
   13352             :                 {
   13353          47 :                     const int nCode = atoi(pszCode);
   13354          47 :                     proj_destroy(crs);
   13355          47 :                     proj_list_destroy(list);
   13356          47 :                     return nCode;
   13357             :                 }
   13358           2 :                 proj_destroy(crs);
   13359             :             }
   13360             :         }
   13361          30 :         proj_list_destroy(list);
   13362             :     }
   13363             : 
   13364             :     /* -------------------------------------------------------------------- */
   13365             :     /*      Is this a "well known" geographic coordinate system?            */
   13366             :     /* -------------------------------------------------------------------- */
   13367          90 :     const bool bWGS = strstr(pszGEOGCS, "WGS") != nullptr ||
   13368          30 :                       strstr(pszDatum, "WGS") ||
   13369          30 :                       strstr(pszGEOGCS, "World Geodetic System") ||
   13370          30 :                       strstr(pszGEOGCS, "World_Geodetic_System") ||
   13371          90 :                       strstr(pszDatum, "World Geodetic System") ||
   13372          30 :                       strstr(pszDatum, "World_Geodetic_System");
   13373             : 
   13374          90 :     const bool bNAD = strstr(pszGEOGCS, "NAD") != nullptr ||
   13375          30 :                       strstr(pszDatum, "NAD") ||
   13376          30 :                       strstr(pszGEOGCS, "North American") ||
   13377          30 :                       strstr(pszGEOGCS, "North_American") ||
   13378          90 :                       strstr(pszDatum, "North American") ||
   13379          30 :                       strstr(pszDatum, "North_American");
   13380             : 
   13381          30 :     if (bWGS && (strstr(pszGEOGCS, "84") || strstr(pszDatum, "84")))
   13382           0 :         return 4326;
   13383             : 
   13384          30 :     if (bWGS && (strstr(pszGEOGCS, "72") || strstr(pszDatum, "72")))
   13385           0 :         return 4322;
   13386             : 
   13387             :     // This is questionable as there are several 'flavors' of NAD83 that
   13388             :     // are not the same as 4269
   13389          30 :     if (bNAD && (strstr(pszGEOGCS, "83") || strstr(pszDatum, "83")))
   13390           0 :         return 4269;
   13391             : 
   13392          30 :     if (bNAD && (strstr(pszGEOGCS, "27") || strstr(pszDatum, "27")))
   13393           0 :         return 4267;
   13394             : 
   13395             :     /* -------------------------------------------------------------------- */
   13396             :     /*      If we know the datum, associate the most likely GCS with        */
   13397             :     /*      it.                                                             */
   13398             :     /* -------------------------------------------------------------------- */
   13399          30 :     const OGRSpatialReference &oActiveObj = oSRSTmp.IsEmpty() ? *this : oSRSTmp;
   13400          30 :     pszAuthName = oActiveObj.GetAuthorityName("GEOGCS|DATUM");
   13401          30 :     if (pszAuthName != nullptr && EQUAL(pszAuthName, "epsg") &&
   13402           0 :         GetPrimeMeridian() == 0.0)
   13403             :     {
   13404           0 :         const int nDatum = atoi(oActiveObj.GetAuthorityCode("GEOGCS|DATUM"));
   13405             : 
   13406           0 :         if (nDatum >= 6000 && nDatum <= 6999)
   13407           0 :             return nDatum - 2000;
   13408             :     }
   13409             : 
   13410          30 :     return -1;
   13411             : }
   13412             : 
   13413             : /************************************************************************/
   13414             : /*                         SetCoordinateEpoch()                         */
   13415             : /************************************************************************/
   13416             : 
   13417             : /** Set the coordinate epoch, as decimal year.
   13418             :  *
   13419             :  * In a dynamic CRS, coordinates of a point on the surface of the Earth may
   13420             :  * change with time. To be unambiguous the coordinates must always be qualified
   13421             :  * with the epoch at which they are valid. The coordinate epoch is not
   13422             :  * necessarily the epoch at which the observation was collected.
   13423             :  *
   13424             :  * Pedantically the coordinate epoch of an observation belongs to the
   13425             :  * observation, and not to the CRS, however it is often more practical to
   13426             :  * bind it to the CRS. The coordinate epoch should be specified for dynamic
   13427             :  * CRS (see IsDynamic())
   13428             :  *
   13429             :  * This method is the same as the OSRSetCoordinateEpoch() function.
   13430             :  *
   13431             :  * @param dfCoordinateEpoch Coordinate epoch as decimal year (e.g. 2021.3)
   13432             :  * @since OGR 3.4
   13433             :  */
   13434             : 
   13435         932 : void OGRSpatialReference::SetCoordinateEpoch(double dfCoordinateEpoch)
   13436             : {
   13437         932 :     d->m_coordinateEpoch = dfCoordinateEpoch;
   13438         932 : }
   13439             : 
   13440             : /************************************************************************/
   13441             : /*                       OSRSetCoordinateEpoch()                        */
   13442             : /************************************************************************/
   13443             : 
   13444             : /** \brief Set the coordinate epoch, as decimal year.
   13445             :  *
   13446             :  * See OGRSpatialReference::SetCoordinateEpoch()
   13447             :  *
   13448             :  * @since OGR 3.4
   13449             :  */
   13450          31 : void OSRSetCoordinateEpoch(OGRSpatialReferenceH hSRS, double dfCoordinateEpoch)
   13451             : {
   13452          31 :     VALIDATE_POINTER0(hSRS, "OSRSetCoordinateEpoch");
   13453             : 
   13454          31 :     return OGRSpatialReference::FromHandle(hSRS)->SetCoordinateEpoch(
   13455          31 :         dfCoordinateEpoch);
   13456             : }
   13457             : 
   13458             : /************************************************************************/
   13459             : /*                         GetCoordinateEpoch()                         */
   13460             : /************************************************************************/
   13461             : 
   13462             : /** Return the coordinate epoch, as decimal year.
   13463             :  *
   13464             :  * In a dynamic CRS, coordinates of a point on the surface of the Earth may
   13465             :  * change with time. To be unambiguous the coordinates must always be qualified
   13466             :  * with the epoch at which they are valid. The coordinate epoch is not
   13467             :  * necessarily the epoch at which the observation was collected.
   13468             :  *
   13469             :  * Pedantically the coordinate epoch of an observation belongs to the
   13470             :  * observation, and not to the CRS, however it is often more practical to
   13471             :  * bind it to the CRS. The coordinate epoch should be specified for dynamic
   13472             :  * CRS (see IsDynamic())
   13473             :  *
   13474             :  * This method is the same as the OSRGetCoordinateEpoch() function.
   13475             :  *
   13476             :  * @return coordinateEpoch Coordinate epoch as decimal year (e.g. 2021.3), or 0
   13477             :  *                         if not set, or relevant.
   13478             :  * @since OGR 3.4
   13479             :  */
   13480             : 
   13481       14652 : double OGRSpatialReference::GetCoordinateEpoch() const
   13482             : {
   13483       14652 :     return d->m_coordinateEpoch;
   13484             : }
   13485             : 
   13486             : /************************************************************************/
   13487             : /*                       OSRGetCoordinateEpoch()                        */
   13488             : /************************************************************************/
   13489             : 
   13490             : /** \brief Get the coordinate epoch, as decimal year.
   13491             :  *
   13492             :  * See OGRSpatialReference::GetCoordinateEpoch()
   13493             :  *
   13494             :  * @since OGR 3.4
   13495             :  */
   13496         601 : double OSRGetCoordinateEpoch(OGRSpatialReferenceH hSRS)
   13497             : {
   13498         601 :     VALIDATE_POINTER1(hSRS, "OSRGetCoordinateEpoch", 0);
   13499             : 
   13500         601 :     return OGRSpatialReference::FromHandle(hSRS)->GetCoordinateEpoch();
   13501             : }

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