LCOV - code coverage report
Current view: top level - ogr - ogrspatialreference.cpp (source / functions) Hit Total Coverage
Test: gdal_filtered.info Lines: 3469 4244 81.7 %
Date: 2025-12-29 15:50:47 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      236579 :         explicit Listener(OGRSpatialReference::Private *poObj) : m_poObj(poObj)
      71             :         {
      72      236579 :         }
      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();
     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     1187140 :     PJ_CONTEXT *getPROJContext()
     159             :     {
     160     1187140 :         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     5262280 :         explicit OptionalLockGuard(Private *p) : m_private(*p)
     180             :         {
     181     5262280 :             if (m_private.m_bIsThreadSafe)
     182        3798 :                 m_private.m_mutex.lock();
     183     5262280 :         }
     184             : 
     185     5262280 :         ~OptionalLockGuard()
     186     5262280 :         {
     187     5262280 :             if (m_private.m_bIsThreadSafe)
     188        3798 :                 m_private.m_mutex.unlock();
     189     5262280 :         }
     190             :     };
     191             : 
     192     5262280 :     inline OptionalLockGuard GetOptionalLockGuard()
     193             :     {
     194     5262280 :         return OptionalLockGuard(this);
     195             :     }
     196             : };
     197             : 
     198     2222910 : void OGRSpatialReference::Private::Listener::notifyChange(OGR_SRSNode *)
     199             : {
     200     2222910 :     m_poObj->nodesChanged();
     201     2222910 : }
     202             : 
     203             : #define TAKE_OPTIONAL_LOCK()                                                   \
     204             :     auto lock = d->GetOptionalLockGuard();                                     \
     205             :     CPL_IGNORE_RET_VAL(lock)
     206             : 
     207      236579 : static OSRAxisMappingStrategy GetDefaultAxisMappingStrategy()
     208             : {
     209             :     const char *pszDefaultAMS =
     210      236579 :         CPLGetConfigOption("OSR_DEFAULT_AXIS_MAPPING_STRATEGY", nullptr);
     211      236579 :     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      236578 :     return OAMS_AUTHORITY_COMPLIANT;
     225             : }
     226             : 
     227      236579 : OGRSpatialReference::Private::Private(OGRSpatialReference *poSelf)
     228      236579 :     : 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      236579 :     m_axisMappingStrategy = GetDefaultAxisMappingStrategy();
     233      236579 : }
     234             : 
     235      940924 : 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      235231 :     PJ_CONTEXT *pj_context_to_destroy = nullptr;
     241             :     PJ_CONTEXT *ctxt;
     242      235231 :     if (GDALThreadLocalDatasetCacheIsInDestruction())
     243             :     {
     244         180 :         pj_context_to_destroy = proj_context_create();
     245         180 :         ctxt = pj_context_to_destroy;
     246             :     }
     247             :     else
     248             :     {
     249      235051 :         ctxt = getPROJContext();
     250             :     }
     251             : 
     252      235231 :     proj_assign_context(m_pj_crs, ctxt);
     253      235231 :     proj_destroy(m_pj_crs);
     254             : 
     255      235231 :     proj_assign_context(m_pj_geod_base_crs_temp, ctxt);
     256      235231 :     proj_destroy(m_pj_geod_base_crs_temp);
     257             : 
     258      235231 :     proj_assign_context(m_pj_proj_crs_cs_temp, ctxt);
     259      235231 :     proj_destroy(m_pj_proj_crs_cs_temp);
     260             : 
     261      235231 :     proj_assign_context(m_pj_bound_crs_target, ctxt);
     262      235231 :     proj_destroy(m_pj_bound_crs_target);
     263             : 
     264      235231 :     proj_assign_context(m_pj_bound_crs_co, ctxt);
     265      235231 :     proj_destroy(m_pj_bound_crs_co);
     266             : 
     267      235231 :     proj_assign_context(m_pj_crs_backup, ctxt);
     268      235231 :     proj_destroy(m_pj_crs_backup);
     269             : 
     270      235231 :     delete m_poRootBackup;
     271      235231 :     delete m_poRoot;
     272      235231 :     proj_context_destroy(pj_context_to_destroy);
     273      235231 : }
     274             : 
     275      123463 : void OGRSpatialReference::Private::clear()
     276             : {
     277      123463 :     proj_assign_context(m_pj_crs, getPROJContext());
     278      123463 :     proj_destroy(m_pj_crs);
     279      123463 :     m_pj_crs = nullptr;
     280             : 
     281      123463 :     delete m_poRoot;
     282      123463 :     m_poRoot = nullptr;
     283      123463 :     m_bNodesChanged = false;
     284             : 
     285      123463 :     m_wktImportWarnings.clear();
     286      123463 :     m_wktImportErrors.clear();
     287             : 
     288      123463 :     m_pj_crs_modified_during_demote = false;
     289      123463 :     m_pjType = PJ_TYPE_UNKNOWN;
     290      123463 :     m_osPrimeMeridianName.clear();
     291      123463 :     m_osAngularUnits.clear();
     292      123463 :     m_osLinearUnits.clear();
     293             : 
     294      123463 :     bNormInfoSet = FALSE;
     295      123463 :     dfFromGreenwich = 1.0;
     296      123463 :     dfToMeter = 1.0;
     297      123463 :     dfToDegrees = 1.0;
     298      123463 :     m_dfAngularUnitToRadian = 0.0;
     299             : 
     300      123463 :     m_bMorphToESRI = false;
     301      123463 :     m_bHasCenterLong = false;
     302             : 
     303      123463 :     m_coordinateEpoch = 0.0;
     304      123463 : }
     305             : 
     306       27802 : void OGRSpatialReference::Private::setRoot(OGR_SRSNode *poRoot)
     307             : {
     308       27802 :     m_poRoot = poRoot;
     309       27802 :     if (m_poRoot)
     310             :     {
     311       27802 :         m_poRoot->RegisterListener(m_poListener);
     312             :     }
     313       27802 :     nodesChanged();
     314       27802 : }
     315             : 
     316      187144 : void OGRSpatialReference::Private::setPjCRS(PJ *pj_crsIn,
     317             :                                             bool doRefreshAxisMapping)
     318             : {
     319      187144 :     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      187144 :     proj_assign_context(m_pj_crs, ctxt);
     337      187144 :     proj_destroy(m_pj_crs);
     338      187144 :     m_pj_crs = pj_crsIn;
     339      187144 :     if (m_pj_crs)
     340             :     {
     341      187093 :         m_pjType = proj_get_type(m_pj_crs);
     342             :     }
     343      187144 :     if (m_pj_crs_backup)
     344             :     {
     345          21 :         m_pj_crs_modified_during_demote = true;
     346             :     }
     347      187144 :     invalidateNodes();
     348      187144 :     if (doRefreshAxisMapping)
     349             :     {
     350      187124 :         refreshAxisMapping();
     351             :     }
     352      187144 : }
     353             : 
     354      759691 : void OGRSpatialReference::Private::refreshProjObj()
     355             : {
     356      759691 :     if (m_bNodesChanged && m_poRoot)
     357             :     {
     358        8571 :         char *pszWKT = nullptr;
     359        8571 :         m_poRoot->exportToWkt(&pszWKT);
     360        8571 :         auto poRootBackup = m_poRoot;
     361        8571 :         m_poRoot = nullptr;
     362        8571 :         const double dfCoordinateEpochBackup = m_coordinateEpoch;
     363        8571 :         clear();
     364        8571 :         m_coordinateEpoch = dfCoordinateEpochBackup;
     365        8571 :         m_bHasCenterLong = strstr(pszWKT, "CENTER_LONG") != nullptr;
     366             : 
     367        8571 :         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             :         };
     374        8571 :         PROJ_STRING_LIST warnings = nullptr;
     375        8571 :         PROJ_STRING_LIST errors = nullptr;
     376        8571 :         setPjCRS(proj_create_from_wkt(getPROJContext(), pszWKT, options,
     377             :                                       &warnings, &errors));
     378       16745 :         for (auto iter = warnings; iter && *iter; ++iter)
     379             :         {
     380        8174 :             m_wktImportWarnings.push_back(*iter);
     381             :         }
     382        8786 :         for (auto iter = errors; iter && *iter; ++iter)
     383             :         {
     384         215 :             m_wktImportErrors.push_back(*iter);
     385             :         }
     386        8571 :         proj_string_list_destroy(warnings);
     387        8571 :         proj_string_list_destroy(errors);
     388             : 
     389        8571 :         CPLFree(pszWKT);
     390             : 
     391        8571 :         m_poRoot = poRootBackup;
     392        8571 :         m_bNodesChanged = false;
     393             :     }
     394      759691 : }
     395             : 
     396       29927 : void OGRSpatialReference::Private::refreshRootFromProjObj()
     397             : {
     398       29927 :     CPLAssert(m_poRoot == nullptr);
     399             : 
     400       29927 :     if (m_pj_crs)
     401             :     {
     402       55516 :         CPLStringList aosOptions;
     403       27758 :         if (!m_bMorphToESRI)
     404             :         {
     405       27754 :             aosOptions.SetNameValue("OUTPUT_AXIS", "YES");
     406       27754 :             aosOptions.SetNameValue("MULTILINE", "NO");
     407             :         }
     408       27758 :         aosOptions.SetNameValue("STRICT", "NO");
     409             : 
     410             :         const char *pszWKT;
     411             :         {
     412       27758 :             CPLErrorStateBackuper oErrorStateBackuper(CPLQuietErrorHandler);
     413       27758 :             pszWKT = proj_as_wkt(getPROJContext(), m_pj_crs,
     414       27758 :                                  m_bMorphToESRI ? PJ_WKT1_ESRI : PJ_WKT1_GDAL,
     415       27758 :                                  aosOptions.List());
     416       27758 :             m_bNodesWKT2 = false;
     417             :         }
     418       27758 :         if (!m_bMorphToESRI && pszWKT == nullptr)
     419             :         {
     420          96 :             pszWKT = proj_as_wkt(getPROJContext(), m_pj_crs, PJ_WKT2_2018,
     421          96 :                                  aosOptions.List());
     422          96 :             m_bNodesWKT2 = true;
     423             :         }
     424       27758 :         if (pszWKT)
     425             :         {
     426       27758 :             auto root = new OGR_SRSNode();
     427       27758 :             setRoot(root);
     428       27758 :             root->importFromWkt(&pszWKT);
     429       27758 :             m_bNodesChanged = false;
     430             :         }
     431             :     }
     432       29927 : }
     433             : 
     434      216335 : static bool isNorthEastAxisOrder(PJ_CONTEXT *ctx, PJ *cs)
     435             : {
     436      216335 :     const char *pszName1 = nullptr;
     437      216335 :     const char *pszDirection1 = nullptr;
     438      216335 :     proj_cs_get_axis_info(ctx, cs, 0, &pszName1, nullptr, &pszDirection1,
     439             :                           nullptr, nullptr, nullptr, nullptr);
     440      216335 :     const char *pszName2 = nullptr;
     441      216335 :     const char *pszDirection2 = nullptr;
     442      216335 :     proj_cs_get_axis_info(ctx, cs, 1, &pszName2, nullptr, &pszDirection2,
     443             :                           nullptr, nullptr, nullptr, nullptr);
     444      216335 :     if (pszDirection1 && EQUAL(pszDirection1, "north") && pszDirection2 &&
     445       95557 :         EQUAL(pszDirection2, "east"))
     446             :     {
     447       94134 :         return true;
     448             :     }
     449      122201 :     if (pszDirection1 && pszDirection2 &&
     450      122201 :         ((EQUAL(pszDirection1, "north") && EQUAL(pszDirection2, "north")) ||
     451      120795 :          (EQUAL(pszDirection1, "south") && EQUAL(pszDirection2, "south"))) &&
     452        2872 :         pszName1 && STARTS_WITH_CI(pszName1, "northing") && pszName2 &&
     453        1099 :         STARTS_WITH_CI(pszName2, "easting"))
     454             :     {
     455        1099 :         return true;
     456             :     }
     457      121102 :     return false;
     458             : }
     459             : 
     460      274808 : void OGRSpatialReference::Private::refreshAxisMapping()
     461             : {
     462      274808 :     if (!m_pj_crs || m_axisMappingStrategy == OAMS_CUSTOM)
     463       59039 :         return;
     464             : 
     465      215769 :     bool doUndoDemote = false;
     466      215769 :     if (m_pj_crs_backup == nullptr)
     467             :     {
     468      215748 :         doUndoDemote = true;
     469      215748 :         demoteFromBoundCRS();
     470             :     }
     471      215769 :     const auto ctxt = getPROJContext();
     472      215769 :     PJ *horizCRS = nullptr;
     473      215769 :     int axisCount = 0;
     474      215769 :     if (m_pjType == PJ_TYPE_VERTICAL_CRS)
     475             :     {
     476         218 :         axisCount = 1;
     477             :     }
     478      215551 :     else if (m_pjType == PJ_TYPE_COMPOUND_CRS)
     479             :     {
     480        1107 :         horizCRS = proj_crs_get_sub_crs(ctxt, m_pj_crs, 0);
     481        1107 :         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        1107 :         auto vertCRS = proj_crs_get_sub_crs(ctxt, m_pj_crs, 1);
     492        1107 :         if (vertCRS)
     493             :         {
     494        1104 :             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        1104 :             auto cs = proj_crs_get_coordinate_system(ctxt, vertCRS);
     505        1104 :             if (cs)
     506             :             {
     507        1104 :                 axisCount += proj_cs_get_axis_count(ctxt, cs);
     508        1104 :                 proj_destroy(cs);
     509             :             }
     510        1104 :             proj_destroy(vertCRS);
     511             :         }
     512             :     }
     513             :     else
     514             :     {
     515      214444 :         horizCRS = m_pj_crs;
     516             :     }
     517             : 
     518      215769 :     bool bSwitchForGisFriendlyOrder = false;
     519      215769 :     if (horizCRS)
     520             :     {
     521      215548 :         auto cs = proj_crs_get_coordinate_system(ctxt, horizCRS);
     522      215548 :         if (cs)
     523             :         {
     524      215548 :             int nHorizCSAxisCount = proj_cs_get_axis_count(ctxt, cs);
     525      215548 :             axisCount += nHorizCSAxisCount;
     526      215548 :             if (nHorizCSAxisCount >= 2)
     527             :             {
     528      215538 :                 bSwitchForGisFriendlyOrder = isNorthEastAxisOrder(ctxt, cs);
     529             :             }
     530      215548 :             proj_destroy(cs);
     531             :         }
     532             :     }
     533      215769 :     if (horizCRS != m_pj_crs)
     534             :     {
     535        1325 :         proj_destroy(horizCRS);
     536             :     }
     537      215769 :     if (doUndoDemote)
     538             :     {
     539      215748 :         undoDemoteFromBoundCRS();
     540             :     }
     541             : 
     542      215769 :     m_axisMapping.resize(axisCount);
     543      215769 :     if (m_axisMappingStrategy == OAMS_AUTHORITY_COMPLIANT ||
     544       63274 :         !bSwitchForGisFriendlyOrder)
     545             :     {
     546      562770 :         for (int i = 0; i < axisCount; i++)
     547             :         {
     548      375694 :             m_axisMapping[i] = i + 1;
     549      187076 :         }
     550             :     }
     551             :     else
     552             :     {
     553       28693 :         m_axisMapping[0] = 2;
     554       28693 :         m_axisMapping[1] = 1;
     555       28693 :         if (axisCount == 3)
     556             :         {
     557         343 :             m_axisMapping[2] = 3;
     558             :         }
     559             :     }
     560             : }
     561             : 
     562     2250710 : void OGRSpatialReference::Private::nodesChanged()
     563             : {
     564     2250710 :     m_bNodesChanged = true;
     565     2250710 : }
     566             : 
     567      187400 : void OGRSpatialReference::Private::invalidateNodes()
     568             : {
     569      187400 :     delete m_poRoot;
     570      187400 :     m_poRoot = nullptr;
     571      187400 :     m_bNodesChanged = false;
     572      187400 : }
     573             : 
     574         256 : void OGRSpatialReference::Private::setMorphToESRI(bool b)
     575             : {
     576         256 :     invalidateNodes();
     577         256 :     m_bMorphToESRI = b;
     578         256 : }
     579             : 
     580      638926 : void OGRSpatialReference::Private::demoteFromBoundCRS()
     581             : {
     582      638926 :     CPLAssert(m_pj_bound_crs_target == nullptr);
     583      638926 :     CPLAssert(m_pj_bound_crs_co == nullptr);
     584      638926 :     CPLAssert(m_poRootBackup == nullptr);
     585      638926 :     CPLAssert(m_pj_crs_backup == nullptr);
     586             : 
     587      638926 :     m_pj_crs_modified_during_demote = false;
     588             : 
     589      638926 :     if (m_pjType == PJ_TYPE_BOUND_CRS)
     590             :     {
     591        2759 :         auto baseCRS = proj_get_source_crs(getPROJContext(), m_pj_crs);
     592        2759 :         m_pj_bound_crs_target = proj_get_target_crs(getPROJContext(), m_pj_crs);
     593        2759 :         m_pj_bound_crs_co =
     594        2759 :             proj_crs_get_coordoperation(getPROJContext(), m_pj_crs);
     595             : 
     596        2759 :         m_poRootBackup = m_poRoot;
     597        2759 :         m_poRoot = nullptr;
     598        2759 :         m_pj_crs_backup = m_pj_crs;
     599        2759 :         m_pj_crs = baseCRS;
     600        2759 :         m_pjType = proj_get_type(m_pj_crs);
     601             :     }
     602      638926 : }
     603             : 
     604      638926 : void OGRSpatialReference::Private::undoDemoteFromBoundCRS()
     605             : {
     606      638926 :     if (m_pj_bound_crs_target)
     607             :     {
     608        2759 :         CPLAssert(m_poRoot == nullptr);
     609        2759 :         CPLAssert(m_pj_crs);
     610        2759 :         if (!m_pj_crs_modified_during_demote)
     611             :         {
     612        2739 :             proj_destroy(m_pj_crs);
     613        2739 :             m_pj_crs = m_pj_crs_backup;
     614        2739 :             m_pjType = proj_get_type(m_pj_crs);
     615        2739 :             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      638926 :     m_poRootBackup = nullptr;
     631      638926 :     m_pj_crs_backup = nullptr;
     632      638926 :     proj_destroy(m_pj_bound_crs_target);
     633      638926 :     m_pj_bound_crs_target = nullptr;
     634      638926 :     proj_destroy(m_pj_bound_crs_co);
     635      638926 :     m_pj_bound_crs_co = nullptr;
     636      638926 :     m_pj_crs_modified_during_demote = false;
     637      638926 : }
     638             : 
     639      160256 : const char *OGRSpatialReference::Private::nullifyTargetKeyIfPossible(
     640             :     const char *pszTargetKey)
     641             : {
     642      160256 :     if (pszTargetKey)
     643             :     {
     644       59981 :         demoteFromBoundCRS();
     645       59981 :         if ((m_pjType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
     646       30999 :              m_pjType == PJ_TYPE_GEOGRAPHIC_3D_CRS) &&
     647       29060 :             EQUAL(pszTargetKey, "GEOGCS"))
     648             :         {
     649        7123 :             pszTargetKey = nullptr;
     650             :         }
     651       52858 :         else if (m_pjType == PJ_TYPE_GEOCENTRIC_CRS &&
     652          20 :                  EQUAL(pszTargetKey, "GEOCCS"))
     653             :         {
     654           0 :             pszTargetKey = nullptr;
     655             :         }
     656       52858 :         else if (m_pjType == PJ_TYPE_PROJECTED_CRS &&
     657       29614 :                  EQUAL(pszTargetKey, "PROJCS"))
     658             :         {
     659        4121 :             pszTargetKey = nullptr;
     660             :         }
     661       48737 :         else if (m_pjType == PJ_TYPE_VERTICAL_CRS &&
     662           4 :                  EQUAL(pszTargetKey, "VERT_CS"))
     663             :         {
     664           2 :             pszTargetKey = nullptr;
     665             :         }
     666       59981 :         undoDemoteFromBoundCRS();
     667             :     }
     668      160256 :     return pszTargetKey;
     669             : }
     670             : 
     671        9587 : PJ *OGRSpatialReference::Private::getGeodBaseCRS()
     672             : {
     673        9587 :     if (m_pjType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
     674        9534 :         m_pjType == PJ_TYPE_GEOGRAPHIC_3D_CRS)
     675             :     {
     676          53 :         return m_pj_crs;
     677             :     }
     678             : 
     679        9534 :     auto ctxt = getPROJContext();
     680        9534 :     if (m_pjType == PJ_TYPE_PROJECTED_CRS)
     681             :     {
     682        4389 :         proj_assign_context(m_pj_geod_base_crs_temp, ctxt);
     683        4389 :         proj_destroy(m_pj_geod_base_crs_temp);
     684        4389 :         m_pj_geod_base_crs_temp = proj_crs_get_geodetic_crs(ctxt, m_pj_crs);
     685        4389 :         return m_pj_geod_base_crs_temp;
     686             :     }
     687             : 
     688        5145 :     proj_assign_context(m_pj_geod_base_crs_temp, ctxt);
     689        5145 :     proj_destroy(m_pj_geod_base_crs_temp);
     690        5145 :     auto cs = proj_create_ellipsoidal_2D_cs(ctxt, PJ_ELLPS2D_LATITUDE_LONGITUDE,
     691             :                                             nullptr, 0);
     692        5145 :     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        5145 :     proj_destroy(cs);
     697             : 
     698        5145 :     return m_pj_geod_base_crs_temp;
     699             : }
     700             : 
     701        5346 : PJ *OGRSpatialReference::Private::getProjCRSCoordSys()
     702             : {
     703        5346 :     auto ctxt = getPROJContext();
     704        5346 :     if (m_pjType == PJ_TYPE_PROJECTED_CRS)
     705             :     {
     706        4375 :         proj_assign_context(m_pj_proj_crs_cs_temp, ctxt);
     707        4375 :         proj_destroy(m_pj_proj_crs_cs_temp);
     708        4375 :         m_pj_proj_crs_cs_temp =
     709        4375 :             proj_crs_get_coordinate_system(getPROJContext(), m_pj_crs);
     710        4375 :         return m_pj_proj_crs_cs_temp;
     711             :     }
     712             : 
     713         971 :     proj_assign_context(m_pj_proj_crs_cs_temp, ctxt);
     714         971 :     proj_destroy(m_pj_proj_crs_cs_temp);
     715         971 :     m_pj_proj_crs_cs_temp = proj_create_cartesian_2D_cs(
     716             :         ctxt, PJ_CART2D_EASTING_NORTHING, nullptr, 0);
     717         971 :     return m_pj_proj_crs_cs_temp;
     718             : }
     719             : 
     720        5397 : const char *OGRSpatialReference::Private::getProjCRSName()
     721             : {
     722        5397 :     if (m_pjType == PJ_TYPE_PROJECTED_CRS)
     723             :     {
     724        4390 :         return proj_get_name(m_pj_crs);
     725             :     }
     726             : 
     727        1007 :     return "unnamed";
     728             : }
     729             : 
     730        1378 : OGRErr OGRSpatialReference::Private::replaceConversionAndUnref(PJ *conv)
     731             : {
     732        1378 :     refreshProjObj();
     733             : 
     734        1378 :     demoteFromBoundCRS();
     735             : 
     736             :     auto projCRS =
     737        1378 :         proj_create_projected_crs(getPROJContext(), getProjCRSName(),
     738        1378 :                                   getGeodBaseCRS(), conv, getProjCRSCoordSys());
     739        1378 :     proj_destroy(conv);
     740             : 
     741        1378 :     setPjCRS(projCRS);
     742             : 
     743        1378 :     undoDemoteFromBoundCRS();
     744        1378 :     return OGRERR_NONE;
     745             : }
     746             : 
     747             : /************************************************************************/
     748             : /*                           ToPointer()                                */
     749             : /************************************************************************/
     750             : 
     751       26252 : static inline OGRSpatialReference *ToPointer(OGRSpatialReferenceH hSRS)
     752             : {
     753       26252 :     return OGRSpatialReference::FromHandle(hSRS);
     754             : }
     755             : 
     756             : /************************************************************************/
     757             : /*                           ToHandle()                                 */
     758             : /************************************************************************/
     759             : 
     760        4511 : static inline OGRSpatialReferenceH ToHandle(OGRSpatialReference *poSRS)
     761             : {
     762        4511 :     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      234035 : OGRSpatialReference::OGRSpatialReference(const char *pszWKT)
     831      234035 :     : d(new Private(this))
     832             : {
     833      234035 :     if (pszWKT != nullptr)
     834         281 :         importFromWkt(pszWKT);
     835      234035 : }
     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        3190 : OGRSpatialReferenceH CPL_STDCALL OSRNewSpatialReference(const char *pszWKT)
     860             : 
     861             : {
     862        3190 :     OGRSpatialReference *poSRS = new OGRSpatialReference();
     863             : 
     864        3190 :     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        3190 :     return ToHandle(poSRS);
     874             : }
     875             : 
     876             : /************************************************************************/
     877             : /*                        OGRSpatialReference()                         */
     878             : /************************************************************************/
     879             : 
     880             : /** Copy constructor. See also Clone().
     881             :  * @param oOther other spatial reference
     882             :  */
     883        2544 : OGRSpatialReference::OGRSpatialReference(const OGRSpatialReference &oOther)
     884        2544 :     : d(new Private(this))
     885             : {
     886        2544 :     *this = oOther;
     887        2544 : }
     888             : 
     889             : /************************************************************************/
     890             : /*                        OGRSpatialReference()                         */
     891             : /************************************************************************/
     892             : 
     893             : /** Move constructor.
     894             :  * @param oOther other spatial reference
     895             :  */
     896          29 : OGRSpatialReference::OGRSpatialReference(OGRSpatialReference &&oOther)
     897          29 :     : d(std::move(oOther.d))
     898             : {
     899          29 : }
     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      293474 : OGRSpatialReference::~OGRSpatialReference()
     915             : 
     916             : {
     917      293474 : }
     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        9428 : void CPL_STDCALL OSRDestroySpatialReference(OGRSpatialReferenceH hSRS)
     955             : 
     956             : {
     957        9428 :     delete ToPointer(hSRS);
     958        9428 : }
     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      114892 : void OGRSpatialReference::Clear()
     972             : 
     973             : {
     974      114892 :     d->clear();
     975      114892 : }
     976             : 
     977             : /************************************************************************/
     978             : /*                             operator=()                              */
     979             : /************************************************************************/
     980             : 
     981             : /** Assignment operator.
     982             :  * @param oSource SRS to assign to *this
     983             :  * @return *this
     984             :  */
     985             : OGRSpatialReference &
     986       26899 : OGRSpatialReference::operator=(const OGRSpatialReference &oSource)
     987             : 
     988             : {
     989       26899 :     if (&oSource != this)
     990             :     {
     991       26898 :         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       26898 :         oSource.d->refreshProjObj();
     998       26898 :         if (oSource.d->m_pj_crs)
     999       26543 :             d->setPjCRS(proj_clone(d->getPROJContext(), oSource.d->m_pj_crs));
    1000       26898 :         if (oSource.d->m_axisMappingStrategy == OAMS_TRADITIONAL_GIS_ORDER)
    1001       12251 :             SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
    1002       14647 :         else if (oSource.d->m_axisMappingStrategy == OAMS_CUSTOM)
    1003         124 :             SetDataAxisToSRSAxisMapping(oSource.d->m_axisMapping);
    1004             : 
    1005       26898 :         d->m_coordinateEpoch = oSource.d->m_coordinateEpoch;
    1006             :     }
    1007             : 
    1008       26899 :     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        4694 : OGRSpatialReference::operator=(OGRSpatialReference &&oSource)
    1021             : 
    1022             : {
    1023        4694 :     if (&oSource != this)
    1024             :     {
    1025        4693 :         d = std::move(oSource.d);
    1026             :     }
    1027             : 
    1028        4694 :     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     3627890 : int OGRSpatialReference::Reference()
    1069             : 
    1070             : {
    1071     3627890 :     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        1001 : int OSRReference(OGRSpatialReferenceH hSRS)
    1084             : 
    1085             : {
    1086        1001 :     VALIDATE_POINTER1(hSRS, "OSRReference", 0);
    1087             : 
    1088        1001 :     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     3669850 : int OGRSpatialReference::Dereference()
    1104             : 
    1105             : {
    1106     3669850 :     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     3669850 :     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     3667080 : void OGRSpatialReference::Release()
    1156             : 
    1157             : {
    1158     3667080 :     if (Dereference() <= 0)
    1159       41910 :         delete this;
    1160     3667080 : }
    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        6500 : void OSRRelease(OGRSpatialReferenceH hSRS)
    1172             : 
    1173             : {
    1174        6500 :     VALIDATE_POINTER0(hSRS, "OSRRelease");
    1175             : 
    1176        6500 :     ToPointer(hSRS)->Release();
    1177             : }
    1178             : 
    1179       91121 : OGR_SRSNode *OGRSpatialReference::GetRoot()
    1180             : {
    1181       91121 :     TAKE_OPTIONAL_LOCK();
    1182             : 
    1183       91121 :     if (!d->m_poRoot)
    1184             :     {
    1185       26895 :         d->refreshRootFromProjObj();
    1186             :     }
    1187      182242 :     return d->m_poRoot;
    1188             : }
    1189             : 
    1190        8169 : const OGR_SRSNode *OGRSpatialReference::GetRoot() const
    1191             : {
    1192        8169 :     TAKE_OPTIONAL_LOCK();
    1193             : 
    1194        8169 :     if (!d->m_poRoot)
    1195             :     {
    1196        3032 :         d->refreshRootFromProjObj();
    1197             :     }
    1198       16338 :     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       87989 : OGR_SRSNode *OGRSpatialReference::GetAttrNode(const char *pszNodePath)
    1248             : 
    1249             : {
    1250       87989 :     if (strchr(pszNodePath, '|') == nullptr)
    1251             :     {
    1252             :         // Fast path
    1253       48330 :         OGR_SRSNode *poNode = GetRoot();
    1254       48330 :         if (poNode)
    1255       47125 :             poNode = poNode->GetNode(pszNodePath);
    1256       48330 :         return poNode;
    1257             :     }
    1258             : 
    1259             :     char **papszPathTokens =
    1260       39659 :         CSLTokenizeStringComplex(pszNodePath, "|", TRUE, FALSE);
    1261             : 
    1262       39659 :     if (CSLCount(papszPathTokens) < 1)
    1263             :     {
    1264           0 :         CSLDestroy(papszPathTokens);
    1265           0 :         return nullptr;
    1266             :     }
    1267             : 
    1268       39659 :     OGR_SRSNode *poNode = GetRoot();
    1269      120359 :     for (int i = 0; poNode != nullptr && papszPathTokens[i] != nullptr; i++)
    1270             :     {
    1271       80700 :         poNode = poNode->GetNode(papszPathTokens[i]);
    1272             :     }
    1273             : 
    1274       39659 :     CSLDestroy(papszPathTokens);
    1275             : 
    1276       39659 :     return poNode;
    1277             : }
    1278             : 
    1279             : /**
    1280             :  * \brief Find named node in tree.
    1281             :  *
    1282             :  * This method does a pre-order traversal of the node tree searching for
    1283             :  * a node with this exact value (case insensitive), and returns it.  Leaf
    1284             :  * nodes are not considered, under the assumption that they are just
    1285             :  * attribute value nodes.
    1286             :  *
    1287             :  * If a node appears more than once in the tree (such as UNIT for instance),
    1288             :  * the first encountered will be returned.  Use GetNode() on a subtree to be
    1289             :  * more specific.
    1290             :  *
    1291             :  * @param pszNodePath the name of the node to search for.  May contain multiple
    1292             :  * components such as "GEOGCS|UNIT".
    1293             :  *
    1294             :  * @return a pointer to the node found, or NULL if none.
    1295             :  */
    1296             : 
    1297             : const OGR_SRSNode *
    1298       79677 : OGRSpatialReference::GetAttrNode(const char *pszNodePath) const
    1299             : 
    1300             : {
    1301             :     OGR_SRSNode *poNode =
    1302       79677 :         const_cast<OGRSpatialReference *>(this)->GetAttrNode(pszNodePath);
    1303             : 
    1304       79677 :     return poNode;
    1305             : }
    1306             : 
    1307             : /************************************************************************/
    1308             : /*                            GetAttrValue()                            */
    1309             : /************************************************************************/
    1310             : 
    1311             : /**
    1312             :  * \brief Fetch indicated attribute of named node.
    1313             :  *
    1314             :  * This method uses GetAttrNode() to find the named node, and then extracts
    1315             :  * the value of the indicated child.  Thus a call to GetAttrValue("UNIT",1)
    1316             :  * would return the second child of the UNIT node, which is normally the
    1317             :  * length of the linear unit in meters.
    1318             :  *
    1319             :  * This method does the same thing as the C function OSRGetAttrValue().
    1320             :  *
    1321             :  * @param pszNodeName the tree node to look for (case insensitive).
    1322             :  * @param iAttr the child of the node to fetch (zero based).
    1323             :  *
    1324             :  * @return the requested value, or NULL if it fails for any reason.
    1325             :  */
    1326             : 
    1327       24140 : const char *OGRSpatialReference::GetAttrValue(const char *pszNodeName,
    1328             :                                               int iAttr) const
    1329             : 
    1330             : {
    1331       24140 :     const OGR_SRSNode *poNode = GetAttrNode(pszNodeName);
    1332       24140 :     if (poNode == nullptr)
    1333             :     {
    1334       10421 :         if (d->m_bNodesWKT2 && EQUAL(pszNodeName, "PROJECTION"))
    1335             :         {
    1336          14 :             return GetAttrValue("METHOD", iAttr);
    1337             :         }
    1338       10407 :         else if (d->m_bNodesWKT2 && EQUAL(pszNodeName, "PROJCS|PROJECTION"))
    1339             :         {
    1340           0 :             return GetAttrValue("PROJCRS|METHOD", iAttr);
    1341             :         }
    1342       10407 :         else if (d->m_bNodesWKT2 && EQUAL(pszNodeName, "PROJCS"))
    1343             :         {
    1344           1 :             return GetAttrValue("PROJCRS", iAttr);
    1345             :         }
    1346       10406 :         return nullptr;
    1347             :     }
    1348             : 
    1349       13719 :     if (iAttr < 0 || iAttr >= poNode->GetChildCount())
    1350           0 :         return nullptr;
    1351             : 
    1352       13719 :     return poNode->GetChild(iAttr)->GetValue();
    1353             : }
    1354             : 
    1355             : /************************************************************************/
    1356             : /*                          OSRGetAttrValue()                           */
    1357             : /************************************************************************/
    1358             : 
    1359             : /**
    1360             :  * \brief Fetch indicated attribute of named node.
    1361             :  *
    1362             :  * This function is the same as OGRSpatialReference::GetAttrValue()
    1363             :  */
    1364          34 : const char *CPL_STDCALL OSRGetAttrValue(OGRSpatialReferenceH hSRS,
    1365             :                                         const char *pszKey, int iChild)
    1366             : 
    1367             : {
    1368          34 :     VALIDATE_POINTER1(hSRS, "OSRGetAttrValue", nullptr);
    1369             : 
    1370          34 :     return ToPointer(hSRS)->GetAttrValue(pszKey, iChild);
    1371             : }
    1372             : 
    1373             : /************************************************************************/
    1374             : /*                             GetName()                                */
    1375             : /************************************************************************/
    1376             : 
    1377             : /**
    1378             :  * \brief Return the CRS name.
    1379             :  *
    1380             :  * The returned value is only short lived and should not be used after other
    1381             :  * calls to methods on this object.
    1382             :  *
    1383             :  * @since GDAL 3.0
    1384             :  */
    1385             : 
    1386        8128 : const char *OGRSpatialReference::GetName() const
    1387             : {
    1388       16256 :     TAKE_OPTIONAL_LOCK();
    1389             : 
    1390        8128 :     d->refreshProjObj();
    1391        8128 :     if (!d->m_pj_crs)
    1392         113 :         return nullptr;
    1393        8015 :     const char *pszName = proj_get_name(d->m_pj_crs);
    1394             : #if PROJ_VERSION_NUMBER == PROJ_COMPUTE_VERSION(8, 2, 0)
    1395             :     if (d->m_pjType == PJ_TYPE_BOUND_CRS && EQUAL(pszName, "SOURCECRS"))
    1396             :     {
    1397             :         // Work around a bug of PROJ 8.2.0 (fixed in 8.2.1)
    1398             :         PJ *baseCRS = proj_get_source_crs(d->getPROJContext(), d->m_pj_crs);
    1399             :         if (baseCRS)
    1400             :         {
    1401             :             pszName = proj_get_name(baseCRS);
    1402             :             // pszName still remains valid after proj_destroy(), since
    1403             :             // d->m_pj_crs keeps a reference to the base CRS C++ object.
    1404             :             proj_destroy(baseCRS);
    1405             :         }
    1406             :     }
    1407             : #endif
    1408        8015 :     return pszName;
    1409             : }
    1410             : 
    1411             : /************************************************************************/
    1412             : /*                           OSRGetName()                               */
    1413             : /************************************************************************/
    1414             : 
    1415             : /**
    1416             :  * \brief Return the CRS name.
    1417             :  *
    1418             :  * The returned value is only short lived and should not be used after other
    1419             :  * calls to methods on this object.
    1420             :  *
    1421             :  * @since GDAL 3.0
    1422             :  */
    1423          44 : const char *OSRGetName(OGRSpatialReferenceH hSRS)
    1424             : 
    1425             : {
    1426          44 :     VALIDATE_POINTER1(hSRS, "OSRGetName", nullptr);
    1427             : 
    1428          44 :     return ToPointer(hSRS)->GetName();
    1429             : }
    1430             : 
    1431             : /************************************************************************/
    1432             : /*                       GetCelestialBodyName()                         */
    1433             : /************************************************************************/
    1434             : 
    1435             : /**
    1436             :  * \brief Return the name of the celestial body of this CRS.
    1437             :  *
    1438             :  * e.g. "Earth" for an Earth CRS
    1439             :  *
    1440             :  * The returned value is only short lived and should not be used after other
    1441             :  * calls to methods on this object.
    1442             :  *
    1443             :  * @since GDAL 3.12 and PROJ 8.1
    1444             :  */
    1445             : 
    1446           4 : const char *OGRSpatialReference::GetCelestialBodyName() const
    1447             : {
    1448             : #if PROJ_AT_LEAST_VERSION(8, 1, 0)
    1449             : 
    1450             :     TAKE_OPTIONAL_LOCK();
    1451             : 
    1452             :     d->refreshProjObj();
    1453             :     if (!d->m_pj_crs)
    1454             :         return nullptr;
    1455             :     d->demoteFromBoundCRS();
    1456             :     const char *name =
    1457             :         proj_get_celestial_body_name(d->getPROJContext(), d->m_pj_crs);
    1458             :     if (name)
    1459             :     {
    1460             :         d->m_celestialBodyName = name;
    1461             :     }
    1462             :     d->undoDemoteFromBoundCRS();
    1463             :     return d->m_celestialBodyName.c_str();
    1464             : #else
    1465           4 :     if (std::fabs(GetSemiMajor(nullptr) - SRS_WGS84_SEMIMAJOR) <=
    1466             :         0.05 * SRS_WGS84_SEMIMAJOR)
    1467           4 :         return "Earth";
    1468           0 :     const char *pszAuthName = GetAuthorityName(nullptr);
    1469           0 :     if (pszAuthName && EQUAL(pszAuthName, "EPSG"))
    1470           0 :         return "Earth";
    1471           0 :     return nullptr;
    1472             : #endif
    1473             : }
    1474             : 
    1475             : /************************************************************************/
    1476             : /*                       OSRGetCelestialBodyName()                      */
    1477             : /************************************************************************/
    1478             : 
    1479             : /**
    1480             :  * \brief Return the name of the celestial body of this CRS.
    1481             :  *
    1482             :  * e.g. "Earth" for an Earth CRS
    1483             :  *
    1484             :  * The returned value is only short lived and should not be used after other
    1485             :  * calls to methods on this object.
    1486             :  *
    1487             :  * @since GDAL 3.12 and PROJ 8.1
    1488             :  */
    1489             : 
    1490           1 : const char *OSRGetCelestialBodyName(OGRSpatialReferenceH hSRS)
    1491             : 
    1492             : {
    1493           1 :     VALIDATE_POINTER1(hSRS, "GetCelestialBodyName", nullptr);
    1494             : 
    1495           1 :     return ToPointer(hSRS)->GetCelestialBodyName();
    1496             : }
    1497             : 
    1498             : /************************************************************************/
    1499             : /*                               Clone()                                */
    1500             : /************************************************************************/
    1501             : 
    1502             : /**
    1503             :  * \brief Make a duplicate of this OGRSpatialReference.
    1504             :  *
    1505             :  * This method is the same as the C function OSRClone().
    1506             :  *
    1507             :  * @return a new SRS, which becomes the responsibility of the caller.
    1508             :  */
    1509             : 
    1510       33546 : OGRSpatialReference *OGRSpatialReference::Clone() const
    1511             : 
    1512             : {
    1513       33546 :     OGRSpatialReference *poNewRef = new OGRSpatialReference();
    1514             : 
    1515       33546 :     TAKE_OPTIONAL_LOCK();
    1516             : 
    1517       33546 :     d->refreshProjObj();
    1518       33546 :     if (d->m_pj_crs != nullptr)
    1519       33489 :         poNewRef->d->setPjCRS(proj_clone(d->getPROJContext(), d->m_pj_crs));
    1520       33546 :     if (d->m_bHasCenterLong && d->m_poRoot)
    1521             :     {
    1522           0 :         poNewRef->d->setRoot(d->m_poRoot->Clone());
    1523             :     }
    1524       33546 :     poNewRef->d->m_axisMapping = d->m_axisMapping;
    1525       33546 :     poNewRef->d->m_axisMappingStrategy = d->m_axisMappingStrategy;
    1526       33546 :     poNewRef->d->m_coordinateEpoch = d->m_coordinateEpoch;
    1527       67092 :     return poNewRef;
    1528             : }
    1529             : 
    1530             : /************************************************************************/
    1531             : /*                              OSRClone()                              */
    1532             : /************************************************************************/
    1533             : 
    1534             : /**
    1535             :  * \brief Make a duplicate of this OGRSpatialReference.
    1536             :  *
    1537             :  * This function is the same as OGRSpatialReference::Clone()
    1538             :  */
    1539        1167 : OGRSpatialReferenceH CPL_STDCALL OSRClone(OGRSpatialReferenceH hSRS)
    1540             : 
    1541             : {
    1542        1167 :     VALIDATE_POINTER1(hSRS, "OSRClone", nullptr);
    1543             : 
    1544        1167 :     return ToHandle(ToPointer(hSRS)->Clone());
    1545             : }
    1546             : 
    1547             : /************************************************************************/
    1548             : /*                            dumpReadable()                            */
    1549             : /************************************************************************/
    1550             : 
    1551             : /** Dump pretty wkt to stdout, mostly for debugging.
    1552             :  */
    1553           0 : void OGRSpatialReference::dumpReadable()
    1554             : 
    1555             : {
    1556           0 :     char *pszPrettyWkt = nullptr;
    1557             : 
    1558           0 :     const char *const apszOptions[] = {"FORMAT=WKT2", "MULTILINE=YES", nullptr};
    1559           0 :     exportToWkt(&pszPrettyWkt, apszOptions);
    1560           0 :     printf("%s\n", pszPrettyWkt); /*ok*/
    1561           0 :     CPLFree(pszPrettyWkt);
    1562           0 : }
    1563             : 
    1564             : /************************************************************************/
    1565             : /*                         exportToPrettyWkt()                          */
    1566             : /************************************************************************/
    1567             : 
    1568             : /**
    1569             :  * Convert this SRS into a nicely formatted WKT 1 string for display to a
    1570             :  * person.
    1571             :  *
    1572             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    1573             :  * Issues</a> page for implementation details of WKT 1 in OGR.
    1574             :  *
    1575             :  * Note that the returned WKT string should be freed with
    1576             :  * CPLFree() when no longer needed.  It is the responsibility of the caller.
    1577             :  *
    1578             :  * The WKT version can be overridden by using the OSR_WKT_FORMAT configuration
    1579             :  * option. Valid values are the one of the FORMAT option of
    1580             :  * exportToWkt( char ** ppszResult, const char* const* papszOptions ) const
    1581             :  *
    1582             :  * This method is the same as the C function OSRExportToPrettyWkt().
    1583             :  *
    1584             :  * @param ppszResult the resulting string is returned in this pointer.
    1585             :  * @param bSimplify TRUE if the AXIS, AUTHORITY and EXTENSION nodes should be
    1586             :  *   stripped off.
    1587             :  *
    1588             :  * @return OGRERR_NONE if successful.
    1589             :  */
    1590             : 
    1591          58 : OGRErr OGRSpatialReference::exportToPrettyWkt(char **ppszResult,
    1592             :                                               int bSimplify) const
    1593             : 
    1594             : {
    1595         116 :     CPLStringList aosOptions;
    1596          58 :     aosOptions.SetNameValue("MULTILINE", "YES");
    1597          58 :     if (bSimplify)
    1598             :     {
    1599           0 :         aosOptions.SetNameValue("FORMAT", "WKT1_SIMPLE");
    1600             :     }
    1601         116 :     return exportToWkt(ppszResult, aosOptions.List());
    1602             : }
    1603             : 
    1604             : /************************************************************************/
    1605             : /*                        OSRExportToPrettyWkt()                        */
    1606             : /************************************************************************/
    1607             : 
    1608             : /**
    1609             :  * \brief Convert this SRS into a nicely formatted WKT 1 string for display to a
    1610             :  * person.
    1611             :  *
    1612             :  * The WKT version can be overridden by using the OSR_WKT_FORMAT configuration
    1613             :  * option. Valid values are the one of the FORMAT option of
    1614             :  * exportToWkt( char ** ppszResult, const char* const* papszOptions ) const
    1615             :  *
    1616             :  * This function is the same as OGRSpatialReference::exportToPrettyWkt().
    1617             :  */
    1618             : 
    1619          56 : OGRErr CPL_STDCALL OSRExportToPrettyWkt(OGRSpatialReferenceH hSRS,
    1620             :                                         char **ppszReturn, int bSimplify)
    1621             : 
    1622             : {
    1623          56 :     VALIDATE_POINTER1(hSRS, "OSRExportToPrettyWkt", OGRERR_FAILURE);
    1624             : 
    1625          56 :     *ppszReturn = nullptr;
    1626             : 
    1627          56 :     return ToPointer(hSRS)->exportToPrettyWkt(ppszReturn, bSimplify);
    1628             : }
    1629             : 
    1630             : /************************************************************************/
    1631             : /*                            exportToWkt()                             */
    1632             : /************************************************************************/
    1633             : 
    1634             : /**
    1635             :  * \brief Convert this SRS into WKT 1 format.
    1636             :  *
    1637             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    1638             :  * Issues</a> page for implementation details of WKT 1 in OGR.
    1639             :  *
    1640             :  * Note that the returned WKT string should be freed with
    1641             :  * CPLFree() when no longer needed.  It is the responsibility of the caller.
    1642             :  *
    1643             :  * The WKT version can be overridden by using the OSR_WKT_FORMAT configuration
    1644             :  * option. Valid values are the one of the FORMAT option of
    1645             :  * exportToWkt( char ** ppszResult, const char* const* papszOptions ) const
    1646             :  *
    1647             :  * This method is the same as the C function OSRExportToWkt().
    1648             :  *
    1649             :  * @param ppszResult the resulting string is returned in this pointer.
    1650             :  *
    1651             :  * @return OGRERR_NONE if successful.
    1652             :  */
    1653             : 
    1654       12448 : OGRErr OGRSpatialReference::exportToWkt(char **ppszResult) const
    1655             : 
    1656             : {
    1657       12448 :     return exportToWkt(ppszResult, nullptr);
    1658             : }
    1659             : 
    1660             : /************************************************************************/
    1661             : /*                GDAL_proj_crs_create_bound_crs_to_WGS84()             */
    1662             : /************************************************************************/
    1663             : 
    1664         579 : static PJ *GDAL_proj_crs_create_bound_crs_to_WGS84(PJ_CONTEXT *ctx, PJ *pj,
    1665             :                                                    bool onlyIfEPSGCode,
    1666             :                                                    bool canModifyHorizPart)
    1667             : {
    1668         579 :     PJ *ret = nullptr;
    1669         579 :     if (proj_get_type(pj) == PJ_TYPE_COMPOUND_CRS)
    1670             :     {
    1671          13 :         auto horizCRS = proj_crs_get_sub_crs(ctx, pj, 0);
    1672          13 :         auto vertCRS = proj_crs_get_sub_crs(ctx, pj, 1);
    1673          13 :         if (horizCRS && proj_get_type(horizCRS) != PJ_TYPE_BOUND_CRS &&
    1674          26 :             vertCRS &&
    1675          10 :             (!onlyIfEPSGCode || proj_get_id_auth_name(horizCRS, 0) != nullptr))
    1676             :         {
    1677             :             auto boundHoriz =
    1678             :                 canModifyHorizPart
    1679           3 :                     ? proj_crs_create_bound_crs_to_WGS84(ctx, horizCRS, nullptr)
    1680           3 :                     : proj_clone(ctx, horizCRS);
    1681             :             auto boundVert =
    1682           3 :                 proj_crs_create_bound_crs_to_WGS84(ctx, vertCRS, nullptr);
    1683           3 :             if (boundHoriz && boundVert)
    1684             :             {
    1685           3 :                 ret = proj_create_compound_crs(ctx, proj_get_name(pj),
    1686             :                                                boundHoriz, boundVert);
    1687             :             }
    1688           3 :             proj_destroy(boundHoriz);
    1689           3 :             proj_destroy(boundVert);
    1690             :         }
    1691          13 :         proj_destroy(horizCRS);
    1692          13 :         proj_destroy(vertCRS);
    1693             :     }
    1694        1092 :     else if (proj_get_type(pj) != PJ_TYPE_BOUND_CRS &&
    1695         526 :              (!onlyIfEPSGCode || proj_get_id_auth_name(pj, 0) != nullptr))
    1696             :     {
    1697         242 :         ret = proj_crs_create_bound_crs_to_WGS84(ctx, pj, nullptr);
    1698             :     }
    1699         579 :     return ret;
    1700             : }
    1701             : 
    1702             : /************************************************************************/
    1703             : /*                            exportToWkt()                             */
    1704             : /************************************************************************/
    1705             : 
    1706             : /**
    1707             :  * Convert this SRS into a WKT string.
    1708             :  *
    1709             :  * Note that the returned WKT string should be freed with
    1710             :  * CPLFree() when no longer needed.  It is the responsibility of the caller.
    1711             :  *
    1712             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    1713             :  * Issues</a> page for implementation details of WKT 1 in OGR.
    1714             :  *
    1715             :  * @param ppszResult the resulting string is returned in this pointer.
    1716             :  * @param papszOptions NULL terminated list of options, or NULL. Currently
    1717             :  * supported options are
    1718             :  * <ul>
    1719             :  * <li>MULTILINE=YES/NO. Defaults to NO.</li>
    1720             :  * <li>FORMAT=SFSQL/WKT1_SIMPLE/WKT1/WKT1_GDAL/WKT1_ESRI/WKT2_2015/WKT2_2018/WKT2/DEFAULT.
    1721             :  *     If SFSQL, a WKT1 string without AXIS, TOWGS84, AUTHORITY or EXTENSION
    1722             :  *     node is returned.
    1723             :  *     If WKT1_SIMPLE, a WKT1 string without AXIS, AUTHORITY or EXTENSION
    1724             :  *     node is returned.
    1725             :  *     WKT1 is an alias of WKT1_GDAL.
    1726             :  *     WKT2 will default to the latest revision implemented (currently
    1727             :  *     WKT2_2018) WKT2_2019 can be used as an alias of WKT2_2018 since GDAL 3.2
    1728             :  * </li>
    1729             :  * <li>ALLOW_ELLIPSOIDAL_HEIGHT_AS_VERTICAL_CRS=YES/NO. Default is NO. If set
    1730             :  * to YES and FORMAT=WKT1_GDAL, a Geographic 3D CRS or a Projected 3D CRS will
    1731             :  * be exported as a compound CRS whose vertical part represents an ellipsoidal
    1732             :  * height (for example for use with LAS 1.4 WKT1).
    1733             :  * Requires PROJ 7.2.1 and GDAL 3.2.1.</li>
    1734             :  * </ul>
    1735             :  *
    1736             :  * Starting with GDAL 3.0.3, if the OSR_ADD_TOWGS84_ON_EXPORT_TO_WKT1
    1737             :  * configuration option is set to YES, when exporting to WKT1_GDAL, this method
    1738             :  * will try to add a TOWGS84[] node, if there's none attached yet to the SRS and
    1739             :  * if the SRS has a EPSG code. See the AddGuessedTOWGS84() method for how this
    1740             :  * TOWGS84[] node may be added.
    1741             :  *
    1742             :  * @return OGRERR_NONE if successful.
    1743             :  * @since GDAL 3.0
    1744             :  */
    1745             : 
    1746       17123 : OGRErr OGRSpatialReference::exportToWkt(char **ppszResult,
    1747             :                                         const char *const *papszOptions) const
    1748             : {
    1749             :     // In the past calling this method was thread-safe, even if we never
    1750             :     // guaranteed it. Now proj_as_wkt() will cache the result internally,
    1751             :     // so this is no longer thread-safe.
    1752       34246 :     std::lock_guard oLock(d->m_mutex);
    1753             : 
    1754       17123 :     d->refreshProjObj();
    1755       17123 :     if (!d->m_pj_crs)
    1756             :     {
    1757          21 :         *ppszResult = CPLStrdup("");
    1758          21 :         return OGRERR_FAILURE;
    1759             :     }
    1760             : 
    1761       17102 :     if (d->m_bHasCenterLong && d->m_poRoot && !d->m_bMorphToESRI)
    1762             :     {
    1763           0 :         return d->m_poRoot->exportToWkt(ppszResult);
    1764             :     }
    1765             : 
    1766       17102 :     auto ctxt = d->getPROJContext();
    1767       17102 :     auto wktFormat = PJ_WKT1_GDAL;
    1768             :     const char *pszFormat =
    1769       17102 :         CSLFetchNameValueDef(papszOptions, "FORMAT",
    1770             :                              CPLGetConfigOption("OSR_WKT_FORMAT", "DEFAULT"));
    1771       17102 :     if (EQUAL(pszFormat, "DEFAULT"))
    1772       14453 :         pszFormat = "";
    1773             : 
    1774       17102 :     if (EQUAL(pszFormat, "WKT1_ESRI") || d->m_bMorphToESRI)
    1775             :     {
    1776         644 :         wktFormat = PJ_WKT1_ESRI;
    1777             :     }
    1778       16458 :     else if (EQUAL(pszFormat, "WKT1") || EQUAL(pszFormat, "WKT1_GDAL") ||
    1779       15736 :              EQUAL(pszFormat, "WKT1_SIMPLE") || EQUAL(pszFormat, "SFSQL"))
    1780             :     {
    1781         727 :         wktFormat = PJ_WKT1_GDAL;
    1782             :     }
    1783       15731 :     else if (EQUAL(pszFormat, "WKT2_2015"))
    1784             :     {
    1785         301 :         wktFormat = PJ_WKT2_2015;
    1786             :     }
    1787       15430 :     else if (EQUAL(pszFormat, "WKT2") || EQUAL(pszFormat, "WKT2_2018") ||
    1788       15064 :              EQUAL(pszFormat, "WKT2_2019"))
    1789             :     {
    1790        1206 :         wktFormat = PJ_WKT2_2018;
    1791             :     }
    1792       14224 :     else if (pszFormat[0] == '\0')
    1793             :     {
    1794             :         // cppcheck-suppress knownConditionTrueFalse
    1795       14224 :         if (IsDerivedGeographic())
    1796             :         {
    1797           2 :             wktFormat = PJ_WKT2_2018;
    1798             :         }
    1799       27814 :         else if ((IsGeographic() || IsProjected()) && !IsCompound() &&
    1800       13592 :                  GetAxesCount() == 3)
    1801             :         {
    1802          56 :             wktFormat = PJ_WKT2_2018;
    1803             :         }
    1804             :     }
    1805             :     else
    1806             :     {
    1807           0 :         CPLError(CE_Failure, CPLE_AppDefined, "Unsupported value for FORMAT");
    1808           0 :         *ppszResult = CPLStrdup("");
    1809           0 :         return OGRERR_FAILURE;
    1810             :     }
    1811             : 
    1812       34204 :     CPLStringList aosOptions;
    1813       17102 :     if (wktFormat != PJ_WKT1_ESRI)
    1814             :     {
    1815       16458 :         aosOptions.SetNameValue("OUTPUT_AXIS", "YES");
    1816             :     }
    1817             :     aosOptions.SetNameValue(
    1818       17102 :         "MULTILINE", CSLFetchNameValueDef(papszOptions, "MULTILINE", "NO"));
    1819             : 
    1820       17102 :     const char *pszAllowEllpsHeightAsVertCS = CSLFetchNameValue(
    1821             :         papszOptions, "ALLOW_ELLIPSOIDAL_HEIGHT_AS_VERTICAL_CRS");
    1822       17102 :     if (pszAllowEllpsHeightAsVertCS)
    1823             :     {
    1824             :         aosOptions.SetNameValue("ALLOW_ELLIPSOIDAL_HEIGHT_AS_VERTICAL_CRS",
    1825           0 :                                 pszAllowEllpsHeightAsVertCS);
    1826             :     }
    1827             : 
    1828       17102 :     PJ *boundCRS = nullptr;
    1829       31995 :     if (wktFormat == PJ_WKT1_GDAL &&
    1830       14893 :         CPLTestBool(CSLFetchNameValueDef(
    1831             :             papszOptions, "ADD_TOWGS84_ON_EXPORT_TO_WKT1",
    1832             :             CPLGetConfigOption("OSR_ADD_TOWGS84_ON_EXPORT_TO_WKT1", "NO"))))
    1833             :     {
    1834           0 :         boundCRS = GDAL_proj_crs_create_bound_crs_to_WGS84(
    1835           0 :             d->getPROJContext(), d->m_pj_crs, true, true);
    1836             :     }
    1837             : 
    1838       34204 :     CPLErrorAccumulator oErrorAccumulator;
    1839             :     const char *pszWKT;
    1840             :     {
    1841       17102 :         auto oAccumulator = oErrorAccumulator.InstallForCurrentScope();
    1842       17102 :         CPL_IGNORE_RET_VAL(oAccumulator);
    1843       17102 :         pszWKT = proj_as_wkt(ctxt, boundCRS ? boundCRS : d->m_pj_crs, wktFormat,
    1844       17102 :                              aosOptions.List());
    1845             :     }
    1846       17104 :     for (const auto &oError : oErrorAccumulator.GetErrors())
    1847             :     {
    1848          32 :         if (pszFormat[0] == '\0' &&
    1849          14 :             (oError.msg.find("Unsupported conversion method") !=
    1850           2 :                  std::string::npos ||
    1851           2 :              oError.msg.find("can only be exported to WKT2") !=
    1852           0 :                  std::string::npos ||
    1853           0 :              oError.msg.find("can only be exported since WKT2:2019") !=
    1854             :                  std::string::npos))
    1855             :         {
    1856          14 :             CPLErrorReset();
    1857             :             // If we cannot export in the default mode (WKT1), retry with WKT2
    1858          14 :             pszWKT = proj_as_wkt(ctxt, boundCRS ? boundCRS : d->m_pj_crs,
    1859          14 :                                  PJ_WKT2_2018, aosOptions.List());
    1860          14 :             break;
    1861             :         }
    1862           2 :         CPLError(oError.type, oError.no, "%s", oError.msg.c_str());
    1863             :     }
    1864             : 
    1865       17102 :     if (!pszWKT)
    1866             :     {
    1867           2 :         *ppszResult = CPLStrdup("");
    1868           2 :         proj_destroy(boundCRS);
    1869           2 :         return OGRERR_FAILURE;
    1870             :     }
    1871             : 
    1872       17100 :     if (EQUAL(pszFormat, "SFSQL") || EQUAL(pszFormat, "WKT1_SIMPLE"))
    1873             :     {
    1874           5 :         OGR_SRSNode oRoot;
    1875           5 :         oRoot.importFromWkt(&pszWKT);
    1876           5 :         oRoot.StripNodes("AXIS");
    1877           5 :         if (EQUAL(pszFormat, "SFSQL"))
    1878             :         {
    1879           3 :             oRoot.StripNodes("TOWGS84");
    1880             :         }
    1881           5 :         oRoot.StripNodes("AUTHORITY");
    1882           5 :         oRoot.StripNodes("EXTENSION");
    1883             :         OGRErr eErr;
    1884           5 :         if (CPLTestBool(CSLFetchNameValueDef(papszOptions, "MULTILINE", "NO")))
    1885           2 :             eErr = oRoot.exportToPrettyWkt(ppszResult, 1);
    1886             :         else
    1887           3 :             eErr = oRoot.exportToWkt(ppszResult);
    1888           5 :         proj_destroy(boundCRS);
    1889           5 :         return eErr;
    1890             :     }
    1891             : 
    1892       17095 :     *ppszResult = CPLStrdup(pszWKT);
    1893             : 
    1894             : #if !(PROJ_AT_LEAST_VERSION(9, 5, 0))
    1895       17095 :     if (wktFormat == PJ_WKT2_2018)
    1896             :     {
    1897             :         // Works around bug fixed per https://github.com/OSGeo/PROJ/pull/4166
    1898             :         // related to a wrong EPSG code assigned to UTM South conversions
    1899        1264 :         char *pszPtr = strstr(*ppszResult, "CONVERSION[\"UTM zone ");
    1900        1264 :         if (pszPtr)
    1901             :         {
    1902         313 :             pszPtr += strlen("CONVERSION[\"UTM zone ");
    1903         313 :             const int nZone = atoi(pszPtr);
    1904         938 :             while (*pszPtr >= '0' && *pszPtr <= '9')
    1905         625 :                 ++pszPtr;
    1906         313 :             if (nZone >= 1 && nZone <= 60 && *pszPtr == 'S' &&
    1907           1 :                 pszPtr[1] == '"' && pszPtr[2] == ',')
    1908             :             {
    1909           1 :                 pszPtr += 3;
    1910           1 :                 int nLevel = 0;
    1911           1 :                 bool bInString = false;
    1912             :                 // Find the ID node corresponding to this CONVERSION node
    1913         480 :                 while (*pszPtr)
    1914             :                 {
    1915         480 :                     if (bInString)
    1916             :                     {
    1917         197 :                         if (*pszPtr == '"' && pszPtr[1] == '"')
    1918             :                         {
    1919           0 :                             ++pszPtr;
    1920             :                         }
    1921         197 :                         else if (*pszPtr == '"')
    1922             :                         {
    1923          17 :                             bInString = false;
    1924             :                         }
    1925             :                     }
    1926         283 :                     else if (nLevel == 0 && STARTS_WITH_CI(pszPtr, "ID["))
    1927             :                     {
    1928           1 :                         if (STARTS_WITH_CI(pszPtr, CPLSPrintf("ID[\"EPSG\",%d]",
    1929             :                                                               17000 + nZone)))
    1930             :                         {
    1931           1 :                             CPLAssert(pszPtr[11] == '7');
    1932           1 :                             CPLAssert(pszPtr[12] == '0');
    1933           1 :                             pszPtr[11] = '6';
    1934           1 :                             pszPtr[12] = '1';
    1935             :                         }
    1936           1 :                         break;
    1937             :                     }
    1938         282 :                     else if (*pszPtr == '"')
    1939             :                     {
    1940          17 :                         bInString = true;
    1941             :                     }
    1942         265 :                     else if (*pszPtr == '[')
    1943             :                     {
    1944          17 :                         ++nLevel;
    1945             :                     }
    1946         248 :                     else if (*pszPtr == ']')
    1947             :                     {
    1948          17 :                         --nLevel;
    1949             :                     }
    1950             : 
    1951         479 :                     ++pszPtr;
    1952             :                 }
    1953             :             }
    1954             :         }
    1955             :     }
    1956             : #endif
    1957             : 
    1958       17095 :     proj_destroy(boundCRS);
    1959       17095 :     return OGRERR_NONE;
    1960             : }
    1961             : 
    1962             : /************************************************************************/
    1963             : /*                            exportToWkt()                             */
    1964             : /************************************************************************/
    1965             : 
    1966             : /**
    1967             :  * Convert this SRS into a WKT string.
    1968             :  *
    1969             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    1970             :  * Issues</a> page for implementation details of WKT 1 in OGR.
    1971             :  *
    1972             :  * @param papszOptions NULL terminated list of options, or NULL. Currently
    1973             :  * supported options are
    1974             :  * <ul>
    1975             :  * <li>MULTILINE=YES/NO. Defaults to NO.</li>
    1976             :  * <li>FORMAT=SFSQL/WKT1_SIMPLE/WKT1/WKT1_GDAL/WKT1_ESRI/WKT2_2015/WKT2_2018/WKT2/DEFAULT.
    1977             :  *     If SFSQL, a WKT1 string without AXIS, TOWGS84, AUTHORITY or EXTENSION
    1978             :  *     node is returned.
    1979             :  *     If WKT1_SIMPLE, a WKT1 string without AXIS, AUTHORITY or EXTENSION
    1980             :  *     node is returned.
    1981             :  *     WKT1 is an alias of WKT1_GDAL.
    1982             :  *     WKT2 will default to the latest revision implemented (currently
    1983             :  *     WKT2_2019)
    1984             :  * </li>
    1985             :  * <li>ALLOW_ELLIPSOIDAL_HEIGHT_AS_VERTICAL_CRS=YES/NO. Default is NO. If set
    1986             :  * to YES and FORMAT=WKT1_GDAL, a Geographic 3D CRS or a Projected 3D CRS will
    1987             :  * be exported as a compound CRS whose vertical part represents an ellipsoidal
    1988             :  * height (for example for use with LAS 1.4 WKT1).
    1989             :  * Requires PROJ 7.2.1.</li>
    1990             :  * </ul>
    1991             :  *
    1992             :  * If the OSR_ADD_TOWGS84_ON_EXPORT_TO_WKT1
    1993             :  * configuration option is set to YES, when exporting to WKT1_GDAL, this method
    1994             :  * will try to add a TOWGS84[] node, if there's none attached yet to the SRS and
    1995             :  * if the SRS has a EPSG code. See the AddGuessedTOWGS84() method for how this
    1996             :  * TOWGS84[] node may be added.
    1997             :  *
    1998             :  * @return a non-empty string if successful.
    1999             :  * @since GDAL 3.9
    2000             :  */
    2001             : 
    2002             : std::string
    2003         301 : OGRSpatialReference::exportToWkt(const char *const *papszOptions) const
    2004             : {
    2005         301 :     std::string osWKT;
    2006         301 :     char *pszWKT = nullptr;
    2007         301 :     if (exportToWkt(&pszWKT, papszOptions) == OGRERR_NONE)
    2008         301 :         osWKT = pszWKT;
    2009         301 :     CPLFree(pszWKT);
    2010         602 :     return osWKT;
    2011             : }
    2012             : 
    2013             : /************************************************************************/
    2014             : /*                           OSRExportToWkt()                           */
    2015             : /************************************************************************/
    2016             : 
    2017             : /**
    2018             :  * \brief Convert this SRS into WKT 1 format.
    2019             :  *
    2020             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    2021             :  * Issues</a> page for implementation details of WKT in OGR.
    2022             :  *
    2023             :  * The WKT version can be overridden by using the OSR_WKT_FORMAT configuration
    2024             :  * option. Valid values are the one of the FORMAT option of
    2025             :  * exportToWkt( char ** ppszResult, const char* const* papszOptions ) const
    2026             :  *
    2027             :  * This function is the same as OGRSpatialReference::exportToWkt().
    2028             :  */
    2029             : 
    2030         916 : OGRErr CPL_STDCALL OSRExportToWkt(OGRSpatialReferenceH hSRS, char **ppszReturn)
    2031             : 
    2032             : {
    2033         916 :     VALIDATE_POINTER1(hSRS, "OSRExportToWkt", OGRERR_FAILURE);
    2034             : 
    2035         916 :     *ppszReturn = nullptr;
    2036             : 
    2037         916 :     return ToPointer(hSRS)->exportToWkt(ppszReturn);
    2038             : }
    2039             : 
    2040             : /************************************************************************/
    2041             : /*                          OSRExportToWktEx()                          */
    2042             : /************************************************************************/
    2043             : 
    2044             : /**
    2045             :  * \brief Convert this SRS into WKT format.
    2046             :  *
    2047             :  * This function is the same as OGRSpatialReference::exportToWkt(char **
    2048             :  * ppszResult,const char* const* papszOptions ) const
    2049             :  *
    2050             :  * @since GDAL 3.0
    2051             :  */
    2052             : 
    2053        1356 : OGRErr OSRExportToWktEx(OGRSpatialReferenceH hSRS, char **ppszReturn,
    2054             :                         const char *const *papszOptions)
    2055             : {
    2056        1356 :     VALIDATE_POINTER1(hSRS, "OSRExportToWktEx", OGRERR_FAILURE);
    2057             : 
    2058        1356 :     *ppszReturn = nullptr;
    2059             : 
    2060        1356 :     return ToPointer(hSRS)->exportToWkt(ppszReturn, papszOptions);
    2061             : }
    2062             : 
    2063             : /************************************************************************/
    2064             : /*                       exportToPROJJSON()                             */
    2065             : /************************************************************************/
    2066             : 
    2067             : /**
    2068             :  * Convert this SRS into a PROJJSON string.
    2069             :  *
    2070             :  * Note that the returned JSON string should be freed with
    2071             :  * CPLFree() when no longer needed.  It is the responsibility of the caller.
    2072             :  *
    2073             :  * @param ppszResult the resulting string is returned in this pointer.
    2074             :  * @param papszOptions NULL terminated list of options, or NULL. Currently
    2075             :  * supported options are
    2076             :  * <ul>
    2077             :  * <li>MULTILINE=YES/NO. Defaults to YES</li>
    2078             :  * <li>INDENTATION_WIDTH=number. Defaults to 2 (when multiline output is
    2079             :  * on).</li>
    2080             :  * <li>SCHEMA=string. URL to PROJJSON schema. Can be set to empty string to
    2081             :  * disable it.</li>
    2082             :  * </ul>
    2083             :  *
    2084             :  * @return OGRERR_NONE if successful.
    2085             :  * @since GDAL 3.1 and PROJ 6.2
    2086             :  */
    2087             : 
    2088        2598 : OGRErr OGRSpatialReference::exportToPROJJSON(
    2089             :     char **ppszResult, CPL_UNUSED const char *const *papszOptions) const
    2090             : {
    2091        5196 :     TAKE_OPTIONAL_LOCK();
    2092             : 
    2093        2598 :     d->refreshProjObj();
    2094        2598 :     if (!d->m_pj_crs)
    2095             :     {
    2096           1 :         *ppszResult = nullptr;
    2097           1 :         return OGRERR_FAILURE;
    2098             :     }
    2099             : 
    2100             :     const char *pszPROJJSON =
    2101        2597 :         proj_as_projjson(d->getPROJContext(), d->m_pj_crs, papszOptions);
    2102             : 
    2103        2597 :     if (!pszPROJJSON)
    2104             :     {
    2105           0 :         *ppszResult = CPLStrdup("");
    2106           0 :         return OGRERR_FAILURE;
    2107             :     }
    2108             : 
    2109        2597 :     *ppszResult = CPLStrdup(pszPROJJSON);
    2110             : 
    2111             : #if !(PROJ_AT_LEAST_VERSION(9, 5, 0))
    2112             :     {
    2113             :         // Works around bug fixed per https://github.com/OSGeo/PROJ/pull/4166
    2114             :         // related to a wrong EPSG code assigned to UTM South conversions
    2115        2597 :         char *pszPtr = strstr(*ppszResult, "\"name\": \"UTM zone ");
    2116        2597 :         if (pszPtr)
    2117             :         {
    2118         254 :             pszPtr += strlen("\"name\": \"UTM zone ");
    2119         254 :             const int nZone = atoi(pszPtr);
    2120         761 :             while (*pszPtr >= '0' && *pszPtr <= '9')
    2121         507 :                 ++pszPtr;
    2122         254 :             if (nZone >= 1 && nZone <= 60 && *pszPtr == 'S' && pszPtr[1] == '"')
    2123             :             {
    2124           4 :                 pszPtr += 2;
    2125           4 :                 int nLevel = 0;
    2126           4 :                 bool bInString = false;
    2127             :                 // Find the id node corresponding to this conversion node
    2128        5299 :                 while (*pszPtr)
    2129             :                 {
    2130        5299 :                     if (bInString)
    2131             :                     {
    2132        1950 :                         if (*pszPtr == '\\')
    2133             :                         {
    2134           0 :                             ++pszPtr;
    2135             :                         }
    2136        1950 :                         else if (*pszPtr == '"')
    2137             :                         {
    2138         244 :                             bInString = false;
    2139             :                         }
    2140             :                     }
    2141        3349 :                     else if (nLevel == 0 && STARTS_WITH(pszPtr, "\"id\": {"))
    2142             :                     {
    2143           4 :                         const char *pszNextEndCurl = strchr(pszPtr, '}');
    2144             :                         const char *pszAuthEPSG =
    2145           4 :                             strstr(pszPtr, "\"authority\": \"EPSG\"");
    2146           4 :                         char *pszCode = strstr(
    2147             :                             pszPtr, CPLSPrintf("\"code\": %d", 17000 + nZone));
    2148           4 :                         if (pszAuthEPSG && pszCode && pszNextEndCurl &&
    2149           4 :                             pszNextEndCurl - pszAuthEPSG > 0 &&
    2150           4 :                             pszNextEndCurl - pszCode > 0)
    2151             :                         {
    2152           4 :                             CPLAssert(pszCode[9] == '7');
    2153           4 :                             CPLAssert(pszCode[10] == '0');
    2154           4 :                             pszCode[9] = '6';
    2155           4 :                             pszCode[10] = '1';
    2156             :                         }
    2157           4 :                         break;
    2158             :                     }
    2159        3345 :                     else if (*pszPtr == '"')
    2160             :                     {
    2161         244 :                         bInString = true;
    2162             :                     }
    2163        3101 :                     else if (*pszPtr == '{' || *pszPtr == '[')
    2164             :                     {
    2165          60 :                         ++nLevel;
    2166             :                     }
    2167        3041 :                     else if (*pszPtr == '}' || *pszPtr == ']')
    2168             :                     {
    2169          60 :                         --nLevel;
    2170             :                     }
    2171             : 
    2172        5295 :                     ++pszPtr;
    2173             :                 }
    2174             :             }
    2175             :         }
    2176             :     }
    2177             : #endif
    2178             : 
    2179        2597 :     return OGRERR_NONE;
    2180             : }
    2181             : 
    2182             : /************************************************************************/
    2183             : /*                          OSRExportToPROJJSON()                       */
    2184             : /************************************************************************/
    2185             : 
    2186             : /**
    2187             :  * \brief Convert this SRS into PROJJSON format.
    2188             :  *
    2189             :  * This function is the same as OGRSpatialReference::exportToPROJJSON() const
    2190             :  *
    2191             :  * @since GDAL 3.1 and PROJ 6.2
    2192             :  */
    2193             : 
    2194          79 : OGRErr OSRExportToPROJJSON(OGRSpatialReferenceH hSRS, char **ppszReturn,
    2195             :                            const char *const *papszOptions)
    2196             : {
    2197          79 :     VALIDATE_POINTER1(hSRS, "OSRExportToPROJJSON", OGRERR_FAILURE);
    2198             : 
    2199          79 :     *ppszReturn = nullptr;
    2200             : 
    2201          79 :     return ToPointer(hSRS)->exportToPROJJSON(ppszReturn, papszOptions);
    2202             : }
    2203             : 
    2204             : /************************************************************************/
    2205             : /*                           importFromWkt()                            */
    2206             : /************************************************************************/
    2207             : 
    2208             : /**
    2209             :  * \brief Import from WKT string.
    2210             :  *
    2211             :  * This method will wipe the existing SRS definition, and
    2212             :  * reassign it based on the contents of the passed WKT string.  Only as
    2213             :  * much of the input string as needed to construct this SRS is consumed from
    2214             :  * the input string, and the input string pointer
    2215             :  * is then updated to point to the remaining (unused) input.
    2216             :  *
    2217             :  * Starting with PROJ 9.2, if invoked on a COORDINATEMETADATA[] construct,
    2218             :  * the CRS contained in it will be used to fill the OGRSpatialReference object,
    2219             :  * and the coordinate epoch potentially present used as the coordinate epoch
    2220             :  * property of the OGRSpatialReference object.
    2221             :  *
    2222             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    2223             :  * Issues</a> page for implementation details of WKT in OGR.
    2224             :  *
    2225             :  * This method is the same as the C function OSRImportFromWkt().
    2226             :  *
    2227             :  * @param ppszInput Pointer to pointer to input.  The pointer is updated to
    2228             :  * point to remaining unused input text.
    2229             :  *
    2230             :  * @return OGRERR_NONE if import succeeds, or OGRERR_CORRUPT_DATA if it
    2231             :  * fails for any reason.
    2232             :  */
    2233             : 
    2234       17543 : OGRErr OGRSpatialReference::importFromWkt(const char **ppszInput)
    2235             : 
    2236             : {
    2237       17543 :     return importFromWkt(ppszInput, nullptr);
    2238             : }
    2239             : 
    2240             : /************************************************************************/
    2241             : /*                           importFromWkt()                            */
    2242             : /************************************************************************/
    2243             : 
    2244             : /*! @cond Doxygen_Suppress */
    2245             : 
    2246          21 : OGRErr OGRSpatialReference::importFromWkt(const char *pszInput,
    2247             :                                           CSLConstList papszOptions)
    2248             : 
    2249             : {
    2250          21 :     return importFromWkt(&pszInput, papszOptions);
    2251             : }
    2252             : 
    2253       17564 : OGRErr OGRSpatialReference::importFromWkt(const char **ppszInput,
    2254             :                                           CSLConstList papszOptions)
    2255             : 
    2256             : {
    2257       35128 :     TAKE_OPTIONAL_LOCK();
    2258             : 
    2259       17564 :     if (!ppszInput || !*ppszInput)
    2260           0 :         return OGRERR_FAILURE;
    2261             : 
    2262       17564 :     if (strlen(*ppszInput) > 100 * 1000 &&
    2263           0 :         CPLTestBool(CPLGetConfigOption("OSR_IMPORT_FROM_WKT_LIMIT", "YES")))
    2264             :     {
    2265           0 :         CPLError(CE_Failure, CPLE_NotSupported,
    2266             :                  "Suspiciously large input for importFromWkt(). Rejecting it. "
    2267             :                  "You can remove this limitation by definition the "
    2268             :                  "OSR_IMPORT_FROM_WKT_LIMIT configuration option to NO.");
    2269           0 :         return OGRERR_FAILURE;
    2270             :     }
    2271             : 
    2272       17564 :     Clear();
    2273             : 
    2274       17564 :     bool canCache = false;
    2275       17564 :     auto tlsCache = OSRGetProjTLSCache();
    2276       35128 :     std::string osWkt;
    2277       17564 :     if (**ppszInput)
    2278             :     {
    2279       17008 :         osWkt = *ppszInput;
    2280       17008 :         auto cachedObj = tlsCache->GetPJForWKT(osWkt);
    2281       17008 :         if (cachedObj)
    2282             :         {
    2283       15158 :             d->setPjCRS(cachedObj);
    2284             :         }
    2285             :         else
    2286             :         {
    2287        3700 :             CPLStringList aosOptions(papszOptions);
    2288        1850 :             if (aosOptions.FetchNameValue("STRICT") == nullptr)
    2289        1850 :                 aosOptions.SetNameValue("STRICT", "NO");
    2290        1850 :             PROJ_STRING_LIST warnings = nullptr;
    2291        1850 :             PROJ_STRING_LIST errors = nullptr;
    2292        1850 :             auto ctxt = d->getPROJContext();
    2293        1850 :             auto pj = proj_create_from_wkt(ctxt, *ppszInput, aosOptions.List(),
    2294             :                                            &warnings, &errors);
    2295        1850 :             d->setPjCRS(pj);
    2296             : 
    2297        1903 :             for (auto iter = warnings; iter && *iter; ++iter)
    2298             :             {
    2299          53 :                 d->m_wktImportWarnings.push_back(*iter);
    2300             :             }
    2301        2086 :             for (auto iter = errors; iter && *iter; ++iter)
    2302             :             {
    2303         236 :                 d->m_wktImportErrors.push_back(*iter);
    2304         236 :                 if (!d->m_pj_crs)
    2305             :                 {
    2306          34 :                     CPLError(CE_Failure, CPLE_AppDefined, "%s", *iter);
    2307             :                 }
    2308             :             }
    2309        1850 :             if (warnings == nullptr && errors == nullptr)
    2310             :             {
    2311        1570 :                 canCache = true;
    2312             :             }
    2313        1850 :             proj_string_list_destroy(warnings);
    2314        1850 :             proj_string_list_destroy(errors);
    2315             :         }
    2316             :     }
    2317       17564 :     if (!d->m_pj_crs)
    2318         590 :         return OGRERR_CORRUPT_DATA;
    2319             : 
    2320             :     // Only accept CRS objects
    2321       16974 :     if (!proj_is_crs(d->m_pj_crs))
    2322             :     {
    2323           0 :         Clear();
    2324           0 :         return OGRERR_CORRUPT_DATA;
    2325             :     }
    2326             : 
    2327       16974 :     if (canCache)
    2328             :     {
    2329        1570 :         tlsCache->CachePJForWKT(osWkt, d->m_pj_crs);
    2330             :     }
    2331             : 
    2332       16974 :     if (strstr(*ppszInput, "CENTER_LONG"))
    2333             :     {
    2334           0 :         auto poRoot = new OGR_SRSNode();
    2335           0 :         d->setRoot(poRoot);
    2336           0 :         const char *pszTmp = *ppszInput;
    2337           0 :         poRoot->importFromWkt(&pszTmp);
    2338           0 :         d->m_bHasCenterLong = true;
    2339             :     }
    2340             : 
    2341             :     // TODO? we don't really update correctly since we assume that the
    2342             :     // passed string is only WKT.
    2343       16974 :     *ppszInput += strlen(*ppszInput);
    2344       16974 :     return OGRERR_NONE;
    2345             : 
    2346             : #if no_longer_implemented_for_now
    2347             :     /* -------------------------------------------------------------------- */
    2348             :     /*      The following seems to try and detect and unconsumed            */
    2349             :     /*      VERTCS[] coordinate system definition (ESRI style) and to       */
    2350             :     /*      import and attach it to the existing root.  Likely we will      */
    2351             :     /*      need to extend this somewhat to bring it into an acceptable     */
    2352             :     /*      OGRSpatialReference organization at some point.                 */
    2353             :     /* -------------------------------------------------------------------- */
    2354             :     if (strlen(*ppszInput) > 0 && strstr(*ppszInput, "VERTCS"))
    2355             :     {
    2356             :         if (((*ppszInput)[0]) == ',')
    2357             :             (*ppszInput)++;
    2358             :         OGR_SRSNode *poNewChild = new OGR_SRSNode();
    2359             :         poRoot->AddChild(poNewChild);
    2360             :         return poNewChild->importFromWkt(ppszInput);
    2361             :     }
    2362             : #endif
    2363             : }
    2364             : 
    2365             : /*! @endcond */
    2366             : 
    2367             : /**
    2368             :  * \brief Import from WKT string.
    2369             :  *
    2370             :  * This method will wipe the existing SRS definition, and
    2371             :  * reassign it based on the contents of the passed WKT string.  Only as
    2372             :  * much of the input string as needed to construct this SRS is consumed from
    2373             :  * the input string, and the input string pointer
    2374             :  * is then updated to point to the remaining (unused) input.
    2375             :  *
    2376             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    2377             :  * Issues</a> page for implementation details of WKT in OGR.
    2378             :  *
    2379             :  * This method is the same as the C function OSRImportFromWkt().
    2380             :  *
    2381             :  * @param ppszInput Pointer to pointer to input.  The pointer is updated to
    2382             :  * point to remaining unused input text.
    2383             :  *
    2384             :  * @return OGRERR_NONE if import succeeds, or OGRERR_CORRUPT_DATA if it
    2385             :  * fails for any reason.
    2386             :  * @deprecated Use importFromWkt(const char**) or importFromWkt(const
    2387             :  * char*)
    2388             :  */
    2389             : 
    2390           0 : OGRErr OGRSpatialReference::importFromWkt(char **ppszInput)
    2391             : 
    2392             : {
    2393           0 :     return importFromWkt(const_cast<const char **>(ppszInput));
    2394             : }
    2395             : 
    2396             : /**
    2397             :  * \brief Import from WKT string.
    2398             :  *
    2399             :  * This method will wipe the existing SRS definition, and
    2400             :  * reassign it based on the contents of the passed WKT string.  Only as
    2401             :  * much of the input string as needed to construct this SRS is consumed from
    2402             :  * the input string, and the input string pointer
    2403             :  * is then updated to point to the remaining (unused) input.
    2404             :  *
    2405             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    2406             :  * Issues</a> page for implementation details of WKT in OGR.
    2407             :  *
    2408             :  * @param pszInput Input WKT
    2409             :  *
    2410             :  * @return OGRERR_NONE if import succeeds, or OGRERR_CORRUPT_DATA if it
    2411             :  * fails for any reason.
    2412             :  */
    2413             : 
    2414       17253 : OGRErr OGRSpatialReference::importFromWkt(const char *pszInput)
    2415             : {
    2416       17253 :     return importFromWkt(&pszInput);
    2417             : }
    2418             : 
    2419             : /************************************************************************/
    2420             : /*                              Validate()                              */
    2421             : /************************************************************************/
    2422             : 
    2423             : /**
    2424             :  * \brief Validate CRS imported with importFromWkt() or with modified with
    2425             :  * direct node manipulations. Otherwise the CRS should be always valid.
    2426             :  *
    2427             :  * This method attempts to verify that the spatial reference system is
    2428             :  * well formed, and consists of known tokens.  The validation is not
    2429             :  * comprehensive.
    2430             :  *
    2431             :  * This method is the same as the C function OSRValidate().
    2432             :  *
    2433             :  * @return OGRERR_NONE if all is fine, OGRERR_CORRUPT_DATA if the SRS is
    2434             :  * not well formed, and OGRERR_UNSUPPORTED_SRS if the SRS is well formed,
    2435             :  * but contains non-standard PROJECTION[] values.
    2436             :  */
    2437             : 
    2438         116 : OGRErr OGRSpatialReference::Validate() const
    2439             : 
    2440             : {
    2441         232 :     TAKE_OPTIONAL_LOCK();
    2442             : 
    2443         154 :     for (const auto &str : d->m_wktImportErrors)
    2444             :     {
    2445          38 :         CPLDebug("OGRSpatialReference::Validate", "%s", str.c_str());
    2446             :     }
    2447         116 :     for (const auto &str : d->m_wktImportWarnings)
    2448             :     {
    2449           0 :         CPLDebug("OGRSpatialReference::Validate", "%s", str.c_str());
    2450             :     }
    2451         116 :     if (!d->m_pj_crs || !d->m_wktImportErrors.empty())
    2452             :     {
    2453          37 :         return OGRERR_CORRUPT_DATA;
    2454             :     }
    2455          79 :     if (!d->m_wktImportWarnings.empty())
    2456             :     {
    2457           0 :         return OGRERR_UNSUPPORTED_SRS;
    2458             :     }
    2459          79 :     return OGRERR_NONE;
    2460             : }
    2461             : 
    2462             : /************************************************************************/
    2463             : /*                            OSRValidate()                             */
    2464             : /************************************************************************/
    2465             : /**
    2466             :  * \brief Validate SRS tokens.
    2467             :  *
    2468             :  * This function is the same as the C++ method OGRSpatialReference::Validate().
    2469             :  */
    2470         114 : OGRErr OSRValidate(OGRSpatialReferenceH hSRS)
    2471             : 
    2472             : {
    2473         114 :     VALIDATE_POINTER1(hSRS, "OSRValidate", OGRERR_FAILURE);
    2474             : 
    2475         114 :     return OGRSpatialReference::FromHandle(hSRS)->Validate();
    2476             : }
    2477             : 
    2478             : /************************************************************************/
    2479             : /*                          OSRImportFromWkt()                          */
    2480             : /************************************************************************/
    2481             : 
    2482             : /**
    2483             :  * \brief Import from WKT string.
    2484             :  *
    2485             :  * Consult also the <a href="wktproblems.html">OGC WKT Coordinate System
    2486             :  * Issues</a> page for implementation details of WKT in OGR.
    2487             :  *
    2488             :  * This function is the same as OGRSpatialReference::importFromWkt().
    2489             :  */
    2490             : 
    2491         290 : OGRErr OSRImportFromWkt(OGRSpatialReferenceH hSRS, char **ppszInput)
    2492             : 
    2493             : {
    2494         290 :     VALIDATE_POINTER1(hSRS, "OSRImportFromWkt", OGRERR_FAILURE);
    2495             : 
    2496         290 :     return ToPointer(hSRS)->importFromWkt(const_cast<const char **>(ppszInput));
    2497             : }
    2498             : 
    2499             : /************************************************************************/
    2500             : /*                              SetNode()                               */
    2501             : /************************************************************************/
    2502             : 
    2503             : /**
    2504             :  * \brief Set attribute value in spatial reference.
    2505             :  *
    2506             :  * Missing intermediate nodes in the path will be created if not already
    2507             :  * in existence.  If the attribute has no children one will be created and
    2508             :  * assigned the value otherwise the zeroth child will be assigned the value.
    2509             :  *
    2510             :  * This method does the same as the C function OSRSetAttrValue().
    2511             :  *
    2512             :  * @param pszNodePath full path to attribute to be set.  For instance
    2513             :  * "PROJCS|GEOGCS|UNIT".
    2514             :  *
    2515             :  * @param pszNewNodeValue value to be assigned to node, such as "meter".
    2516             :  * This may be NULL if you just want to force creation of the intermediate
    2517             :  * path.
    2518             :  *
    2519             :  * @return OGRERR_NONE on success.
    2520             :  */
    2521             : 
    2522         583 : OGRErr OGRSpatialReference::SetNode(const char *pszNodePath,
    2523             :                                     const char *pszNewNodeValue)
    2524             : 
    2525             : {
    2526        1166 :     TAKE_OPTIONAL_LOCK();
    2527             : 
    2528             :     char **papszPathTokens =
    2529         583 :         CSLTokenizeStringComplex(pszNodePath, "|", TRUE, FALSE);
    2530             : 
    2531         583 :     if (CSLCount(papszPathTokens) < 1)
    2532             :     {
    2533           0 :         CSLDestroy(papszPathTokens);
    2534           0 :         return OGRERR_FAILURE;
    2535             :     }
    2536             : 
    2537        1018 :     if (GetRoot() == nullptr ||
    2538         435 :         !EQUAL(papszPathTokens[0], GetRoot()->GetValue()))
    2539             :     {
    2540         268 :         if (EQUAL(papszPathTokens[0], "PROJCS") &&
    2541         116 :             CSLCount(papszPathTokens) == 1)
    2542             :         {
    2543         116 :             CSLDestroy(papszPathTokens);
    2544         116 :             return SetProjCS(pszNewNodeValue);
    2545             :         }
    2546             :         else
    2547             :         {
    2548          36 :             SetRoot(new OGR_SRSNode(papszPathTokens[0]));
    2549             :         }
    2550             :     }
    2551             : 
    2552         467 :     OGR_SRSNode *poNode = GetRoot();
    2553         725 :     for (int i = 1; papszPathTokens[i] != nullptr; i++)
    2554             :     {
    2555         258 :         int j = 0;  // Used after for.
    2556             : 
    2557         645 :         for (; j < poNode->GetChildCount(); j++)
    2558             :         {
    2559         585 :             if (EQUAL(poNode->GetChild(j)->GetValue(), papszPathTokens[i]))
    2560             :             {
    2561         198 :                 poNode = poNode->GetChild(j);
    2562         198 :                 j = -1;
    2563         198 :                 break;
    2564             :             }
    2565             :         }
    2566             : 
    2567         258 :         if (j != -1)
    2568             :         {
    2569          60 :             OGR_SRSNode *poNewNode = new OGR_SRSNode(papszPathTokens[i]);
    2570          60 :             poNode->AddChild(poNewNode);
    2571          60 :             poNode = poNewNode;
    2572             :         }
    2573             :     }
    2574             : 
    2575         467 :     CSLDestroy(papszPathTokens);
    2576             : 
    2577         467 :     if (pszNewNodeValue != nullptr)
    2578             :     {
    2579         467 :         if (poNode->GetChildCount() > 0)
    2580         371 :             poNode->GetChild(0)->SetValue(pszNewNodeValue);
    2581             :         else
    2582          96 :             poNode->AddChild(new OGR_SRSNode(pszNewNodeValue));
    2583             :     };
    2584         467 :     return OGRERR_NONE;
    2585             : }
    2586             : 
    2587             : /************************************************************************/
    2588             : /*                          OSRSetAttrValue()                           */
    2589             : /************************************************************************/
    2590             : 
    2591             : /**
    2592             :  * \brief Set attribute value in spatial reference.
    2593             :  *
    2594             :  * This function is the same as OGRSpatialReference::SetNode()
    2595             :  */
    2596           1 : OGRErr CPL_STDCALL OSRSetAttrValue(OGRSpatialReferenceH hSRS,
    2597             :                                    const char *pszPath, const char *pszValue)
    2598             : 
    2599             : {
    2600           1 :     VALIDATE_POINTER1(hSRS, "OSRSetAttrValue", OGRERR_FAILURE);
    2601             : 
    2602           1 :     return ToPointer(hSRS)->SetNode(pszPath, pszValue);
    2603             : }
    2604             : 
    2605             : /************************************************************************/
    2606             : /*                              SetNode()                               */
    2607             : /************************************************************************/
    2608             : 
    2609             : /**
    2610             :  * \brief Set attribute value in spatial reference.
    2611             :  *
    2612             :  * Missing intermediate nodes in the path will be created if not already
    2613             :  * in existence.  If the attribute has no children one will be created and
    2614             :  * assigned the value otherwise the zeroth child will be assigned the value.
    2615             :  *
    2616             :  * This method does the same as the C function OSRSetAttrValue().
    2617             :  *
    2618             :  * @param pszNodePath full path to attribute to be set.  For instance
    2619             :  * "PROJCS|GEOGCS|UNIT".
    2620             :  *
    2621             :  * @param dfValue value to be assigned to node.
    2622             :  *
    2623             :  * @return OGRERR_NONE on success.
    2624             :  */
    2625             : 
    2626           0 : OGRErr OGRSpatialReference::SetNode(const char *pszNodePath, double dfValue)
    2627             : 
    2628             : {
    2629           0 :     char szValue[64] = {'\0'};
    2630             : 
    2631           0 :     if (std::abs(dfValue - static_cast<int>(dfValue)) == 0.0)
    2632           0 :         snprintf(szValue, sizeof(szValue), "%d", static_cast<int>(dfValue));
    2633             :     else
    2634           0 :         OGRsnPrintDouble(szValue, sizeof(szValue), dfValue);
    2635             : 
    2636           0 :     return SetNode(pszNodePath, szValue);
    2637             : }
    2638             : 
    2639             : /************************************************************************/
    2640             : /*                          SetAngularUnits()                           */
    2641             : /************************************************************************/
    2642             : 
    2643             : /**
    2644             :  * \brief Set the angular units for the geographic coordinate system.
    2645             :  *
    2646             :  * This method creates a UNIT subnode with the specified values as a
    2647             :  * child of the GEOGCS node.
    2648             :  *
    2649             :  * This method does the same as the C function OSRSetAngularUnits().
    2650             :  *
    2651             :  * @param pszUnitsName the units name to be used.  Some preferred units
    2652             :  * names can be found in ogr_srs_api.h such as SRS_UA_DEGREE.
    2653             :  *
    2654             :  * @param dfInRadians the value to multiple by an angle in the indicated
    2655             :  * units to transform to radians.  Some standard conversion factors can
    2656             :  * be found in ogr_srs_api.h.
    2657             :  *
    2658             :  * @return OGRERR_NONE on success.
    2659             :  */
    2660             : 
    2661        1388 : OGRErr OGRSpatialReference::SetAngularUnits(const char *pszUnitsName,
    2662             :                                             double dfInRadians)
    2663             : 
    2664             : {
    2665        2776 :     TAKE_OPTIONAL_LOCK();
    2666             : 
    2667        1388 :     d->bNormInfoSet = FALSE;
    2668             : 
    2669        1388 :     d->refreshProjObj();
    2670        1388 :     if (!d->m_pj_crs)
    2671           0 :         return OGRERR_FAILURE;
    2672        1388 :     auto geodCRS = proj_crs_get_geodetic_crs(d->getPROJContext(), d->m_pj_crs);
    2673        1388 :     if (!geodCRS)
    2674           0 :         return OGRERR_FAILURE;
    2675        1388 :     proj_destroy(geodCRS);
    2676        1388 :     d->demoteFromBoundCRS();
    2677        1388 :     d->setPjCRS(proj_crs_alter_cs_angular_unit(d->getPROJContext(), d->m_pj_crs,
    2678             :                                                pszUnitsName, dfInRadians,
    2679             :                                                nullptr, nullptr));
    2680        1388 :     d->undoDemoteFromBoundCRS();
    2681             : 
    2682        1388 :     d->m_osAngularUnits = pszUnitsName;
    2683        1388 :     d->m_dfAngularUnitToRadian = dfInRadians;
    2684             : 
    2685        1388 :     return OGRERR_NONE;
    2686             : }
    2687             : 
    2688             : /************************************************************************/
    2689             : /*                         OSRSetAngularUnits()                         */
    2690             : /************************************************************************/
    2691             : 
    2692             : /**
    2693             :  * \brief Set the angular units for the geographic coordinate system.
    2694             :  *
    2695             :  * This function is the same as OGRSpatialReference::SetAngularUnits()
    2696             :  */
    2697          48 : OGRErr OSRSetAngularUnits(OGRSpatialReferenceH hSRS, const char *pszUnits,
    2698             :                           double dfInRadians)
    2699             : 
    2700             : {
    2701          48 :     VALIDATE_POINTER1(hSRS, "OSRSetAngularUnits", OGRERR_FAILURE);
    2702             : 
    2703          48 :     return ToPointer(hSRS)->SetAngularUnits(pszUnits, dfInRadians);
    2704             : }
    2705             : 
    2706             : /************************************************************************/
    2707             : /*                          GetAngularUnits()                           */
    2708             : /************************************************************************/
    2709             : 
    2710             : /**
    2711             :  * \brief Fetch angular geographic coordinate system units.
    2712             :  *
    2713             :  * If no units are available, a value of "degree" and SRS_UA_DEGREE_CONV
    2714             :  * will be assumed.  This method only checks directly under the GEOGCS node
    2715             :  * for units.
    2716             :  *
    2717             :  * This method does the same thing as the C function OSRGetAngularUnits().
    2718             :  *
    2719             :  * @param ppszName a pointer to be updated with the pointer to the units name.
    2720             :  * The returned value remains internal to the OGRSpatialReference and should
    2721             :  * not be freed, or modified.  It may be invalidated on the next
    2722             :  * OGRSpatialReference call.
    2723             :  *
    2724             :  * @return the value to multiply by angular distances to transform them to
    2725             :  * radians.
    2726             :  */
    2727             : 
    2728        8275 : double OGRSpatialReference::GetAngularUnits(const char **ppszName) const
    2729             : 
    2730             : {
    2731       16550 :     TAKE_OPTIONAL_LOCK();
    2732             : 
    2733        8275 :     d->refreshProjObj();
    2734             : 
    2735        8275 :     if (!d->m_osAngularUnits.empty())
    2736             :     {
    2737        2269 :         if (ppszName != nullptr)
    2738         181 :             *ppszName = d->m_osAngularUnits.c_str();
    2739        2269 :         return d->m_dfAngularUnitToRadian;
    2740             :     }
    2741             : 
    2742             :     do
    2743             :     {
    2744        6006 :         if (d->m_pj_crs == nullptr || d->m_pjType == PJ_TYPE_ENGINEERING_CRS)
    2745             :         {
    2746         113 :             break;
    2747             :         }
    2748             : 
    2749             :         auto geodCRS =
    2750        5895 :             proj_crs_get_geodetic_crs(d->getPROJContext(), d->m_pj_crs);
    2751        5895 :         if (!geodCRS)
    2752             :         {
    2753           0 :             break;
    2754             :         }
    2755             :         auto coordSys =
    2756        5895 :             proj_crs_get_coordinate_system(d->getPROJContext(), geodCRS);
    2757        5895 :         proj_destroy(geodCRS);
    2758        5895 :         if (!coordSys)
    2759             :         {
    2760           0 :             break;
    2761             :         }
    2762        5895 :         if (proj_cs_get_type(d->getPROJContext(), coordSys) !=
    2763             :             PJ_CS_TYPE_ELLIPSOIDAL)
    2764             :         {
    2765           2 :             proj_destroy(coordSys);
    2766           2 :             break;
    2767             :         }
    2768             : 
    2769        5893 :         double dfConvFactor = 0.0;
    2770        5893 :         const char *pszUnitName = nullptr;
    2771        5893 :         if (!proj_cs_get_axis_info(d->getPROJContext(), coordSys, 0, nullptr,
    2772             :                                    nullptr, nullptr, &dfConvFactor,
    2773             :                                    &pszUnitName, nullptr, nullptr))
    2774             :         {
    2775           0 :             proj_destroy(coordSys);
    2776           0 :             break;
    2777             :         }
    2778             : 
    2779        5893 :         d->m_osAngularUnits = pszUnitName;
    2780             : 
    2781        5893 :         proj_destroy(coordSys);
    2782        5893 :         d->m_dfAngularUnitToRadian = dfConvFactor;
    2783             :     } while (false);
    2784             : 
    2785        6006 :     if (d->m_osAngularUnits.empty())
    2786             :     {
    2787         113 :         d->m_osAngularUnits = "degree";
    2788         113 :         d->m_dfAngularUnitToRadian = CPLAtof(SRS_UA_DEGREE_CONV);
    2789             :     }
    2790             : 
    2791        6006 :     if (ppszName != nullptr)
    2792        3171 :         *ppszName = d->m_osAngularUnits.c_str();
    2793        6006 :     return d->m_dfAngularUnitToRadian;
    2794             : }
    2795             : 
    2796             : /**
    2797             :  * \brief Fetch angular geographic coordinate system units.
    2798             :  *
    2799             :  * If no units are available, a value of "degree" and SRS_UA_DEGREE_CONV
    2800             :  * will be assumed.  This method only checks directly under the GEOGCS node
    2801             :  * for units.
    2802             :  *
    2803             :  * This method does the same thing as the C function OSRGetAngularUnits().
    2804             :  *
    2805             :  * @param ppszName a pointer to be updated with the pointer to the units name.
    2806             :  * The returned value remains internal to the OGRSpatialReference and should
    2807             :  * not be freed, or modified.  It may be invalidated on the next
    2808             :  * OGRSpatialReference call.
    2809             :  *
    2810             :  * @return the value to multiply by angular distances to transform them to
    2811             :  * radians.
    2812             :  * @deprecated Use GetAngularUnits(const char**) const.
    2813             :  */
    2814             : 
    2815           0 : double OGRSpatialReference::GetAngularUnits(char **ppszName) const
    2816             : 
    2817             : {
    2818           0 :     return GetAngularUnits(const_cast<const char **>(ppszName));
    2819             : }
    2820             : 
    2821             : /************************************************************************/
    2822             : /*                         OSRGetAngularUnits()                         */
    2823             : /************************************************************************/
    2824             : 
    2825             : /**
    2826             :  * \brief Fetch angular geographic coordinate system units.
    2827             :  *
    2828             :  * This function is the same as OGRSpatialReference::GetAngularUnits()
    2829             :  */
    2830           1 : double OSRGetAngularUnits(OGRSpatialReferenceH hSRS, char **ppszName)
    2831             : 
    2832             : {
    2833           1 :     VALIDATE_POINTER1(hSRS, "OSRGetAngularUnits", 0);
    2834             : 
    2835           1 :     return ToPointer(hSRS)->GetAngularUnits(
    2836           1 :         const_cast<const char **>(ppszName));
    2837             : }
    2838             : 
    2839             : /************************************************************************/
    2840             : /*                 SetLinearUnitsAndUpdateParameters()                  */
    2841             : /************************************************************************/
    2842             : 
    2843             : /**
    2844             :  * \brief Set the linear units for the projection.
    2845             :  *
    2846             :  * This method creates a UNIT subnode with the specified values as a
    2847             :  * child of the PROJCS or LOCAL_CS node.   It works the same as the
    2848             :  * SetLinearUnits() method, but it also updates all existing linear
    2849             :  * projection parameter values from the old units to the new units.
    2850             :  *
    2851             :  * @param pszName the units name to be used.  Some preferred units
    2852             :  * names can be found in ogr_srs_api.h such as SRS_UL_METER, SRS_UL_FOOT
    2853             :  * and SRS_UL_US_FOOT.
    2854             :  *
    2855             :  * @param dfInMeters the value to multiple by a length in the indicated
    2856             :  * units to transform to meters.  Some standard conversion factors can
    2857             :  * be found in ogr_srs_api.h.
    2858             :  *
    2859             :  * @param pszUnitAuthority Unit authority name. Or nullptr
    2860             :  *
    2861             :  * @param pszUnitCode Unit code. Or nullptr
    2862             :  *
    2863             :  * @return OGRERR_NONE on success.
    2864             :  */
    2865             : 
    2866          39 : OGRErr OGRSpatialReference::SetLinearUnitsAndUpdateParameters(
    2867             :     const char *pszName, double dfInMeters, const char *pszUnitAuthority,
    2868             :     const char *pszUnitCode)
    2869             : 
    2870             : {
    2871          78 :     TAKE_OPTIONAL_LOCK();
    2872             : 
    2873          39 :     if (dfInMeters <= 0.0)
    2874           0 :         return OGRERR_FAILURE;
    2875             : 
    2876          39 :     d->refreshProjObj();
    2877          39 :     if (!d->m_pj_crs)
    2878           0 :         return OGRERR_FAILURE;
    2879             : 
    2880          39 :     d->demoteFromBoundCRS();
    2881          39 :     if (d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    2882             :     {
    2883          78 :         d->setPjCRS(proj_crs_alter_parameters_linear_unit(
    2884          39 :             d->getPROJContext(), d->m_pj_crs, pszName, dfInMeters,
    2885             :             pszUnitAuthority, pszUnitCode, true));
    2886             :     }
    2887          39 :     d->setPjCRS(proj_crs_alter_cs_linear_unit(d->getPROJContext(), d->m_pj_crs,
    2888             :                                               pszName, dfInMeters,
    2889             :                                               pszUnitAuthority, pszUnitCode));
    2890          39 :     d->undoDemoteFromBoundCRS();
    2891             : 
    2892          39 :     d->m_osLinearUnits = pszName;
    2893          39 :     d->dfToMeter = dfInMeters;
    2894             : 
    2895          39 :     return OGRERR_NONE;
    2896             : }
    2897             : 
    2898             : /************************************************************************/
    2899             : /*                OSRSetLinearUnitsAndUpdateParameters()                */
    2900             : /************************************************************************/
    2901             : 
    2902             : /**
    2903             :  * \brief Set the linear units for the projection.
    2904             :  *
    2905             :  * This function is the same as
    2906             :  *   OGRSpatialReference::SetLinearUnitsAndUpdateParameters()
    2907             :  */
    2908           1 : OGRErr OSRSetLinearUnitsAndUpdateParameters(OGRSpatialReferenceH hSRS,
    2909             :                                             const char *pszUnits,
    2910             :                                             double dfInMeters)
    2911             : 
    2912             : {
    2913           1 :     VALIDATE_POINTER1(hSRS, "OSRSetLinearUnitsAndUpdateParameters",
    2914             :                       OGRERR_FAILURE);
    2915             : 
    2916           1 :     return ToPointer(hSRS)->SetLinearUnitsAndUpdateParameters(pszUnits,
    2917           1 :                                                               dfInMeters);
    2918             : }
    2919             : 
    2920             : /************************************************************************/
    2921             : /*                           SetLinearUnits()                           */
    2922             : /************************************************************************/
    2923             : 
    2924             : /**
    2925             :  * \brief Set the linear units for the projection.
    2926             :  *
    2927             :  * This method creates a UNIT subnode with the specified values as a
    2928             :  * child of the PROJCS, GEOCCS, GEOGCS or LOCAL_CS node. When called on a
    2929             :  * Geographic 3D CRS the vertical axis units will be set.
    2930             :  *
    2931             :  * This method does the same as the C function OSRSetLinearUnits().
    2932             :  *
    2933             :  * @param pszUnitsName the units name to be used.  Some preferred units
    2934             :  * names can be found in ogr_srs_api.h such as SRS_UL_METER, SRS_UL_FOOT
    2935             :  * and SRS_UL_US_FOOT.
    2936             :  *
    2937             :  * @param dfInMeters the value to multiple by a length in the indicated
    2938             :  * units to transform to meters.  Some standard conversion factors can
    2939             :  * be found in ogr_srs_api.h.
    2940             :  *
    2941             :  * @return OGRERR_NONE on success.
    2942             :  */
    2943             : 
    2944        7255 : OGRErr OGRSpatialReference::SetLinearUnits(const char *pszUnitsName,
    2945             :                                            double dfInMeters)
    2946             : 
    2947             : {
    2948        7255 :     return SetTargetLinearUnits(nullptr, pszUnitsName, dfInMeters);
    2949             : }
    2950             : 
    2951             : /************************************************************************/
    2952             : /*                         OSRSetLinearUnits()                          */
    2953             : /************************************************************************/
    2954             : 
    2955             : /**
    2956             :  * \brief Set the linear units for the projection.
    2957             :  *
    2958             :  * This function is the same as OGRSpatialReference::SetLinearUnits()
    2959             :  */
    2960           7 : OGRErr OSRSetLinearUnits(OGRSpatialReferenceH hSRS, const char *pszUnits,
    2961             :                          double dfInMeters)
    2962             : 
    2963             : {
    2964           7 :     VALIDATE_POINTER1(hSRS, "OSRSetLinearUnits", OGRERR_FAILURE);
    2965             : 
    2966           7 :     return ToPointer(hSRS)->SetLinearUnits(pszUnits, dfInMeters);
    2967             : }
    2968             : 
    2969             : /************************************************************************/
    2970             : /*                        SetTargetLinearUnits()                        */
    2971             : /************************************************************************/
    2972             : 
    2973             : /**
    2974             :  * \brief Set the linear units for the projection.
    2975             :  *
    2976             :  * This method creates a UNIT subnode with the specified values as a
    2977             :  * child of the target node.
    2978             :  *
    2979             :  * This method does the same as the C function OSRSetTargetLinearUnits().
    2980             :  *
    2981             :  * @param pszTargetKey the keyword to set the linear units for.
    2982             :  * i.e. "PROJCS" or "VERT_CS"
    2983             :  *
    2984             :  * @param pszUnitsName the units name to be used.  Some preferred units
    2985             :  * names can be found in ogr_srs_api.h such as SRS_UL_METER, SRS_UL_FOOT
    2986             :  * and SRS_UL_US_FOOT.
    2987             :  *
    2988             :  * @param dfInMeters the value to multiple by a length in the indicated
    2989             :  * units to transform to meters.  Some standard conversion factors can
    2990             :  * be found in ogr_srs_api.h.
    2991             :  *
    2992             :  * @param pszUnitAuthority Unit authority name. Or nullptr
    2993             :  *
    2994             :  * @param pszUnitCode Unit code. Or nullptr
    2995             :  *
    2996             :  * @return OGRERR_NONE on success.
    2997             :  *
    2998             :  */
    2999             : 
    3000       11566 : OGRErr OGRSpatialReference::SetTargetLinearUnits(const char *pszTargetKey,
    3001             :                                                  const char *pszUnitsName,
    3002             :                                                  double dfInMeters,
    3003             :                                                  const char *pszUnitAuthority,
    3004             :                                                  const char *pszUnitCode)
    3005             : 
    3006             : {
    3007       23132 :     TAKE_OPTIONAL_LOCK();
    3008             : 
    3009       11566 :     if (dfInMeters <= 0.0)
    3010           0 :         return OGRERR_FAILURE;
    3011             : 
    3012       11566 :     d->refreshProjObj();
    3013       11566 :     pszTargetKey = d->nullifyTargetKeyIfPossible(pszTargetKey);
    3014       11566 :     if (pszTargetKey == nullptr)
    3015             :     {
    3016       11566 :         if (!d->m_pj_crs)
    3017           0 :             return OGRERR_FAILURE;
    3018             : 
    3019       11566 :         d->demoteFromBoundCRS();
    3020       11566 :         if (d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    3021             :         {
    3022       17346 :             d->setPjCRS(proj_crs_alter_parameters_linear_unit(
    3023        8673 :                 d->getPROJContext(), d->m_pj_crs, pszUnitsName, dfInMeters,
    3024             :                 pszUnitAuthority, pszUnitCode, false));
    3025             :         }
    3026       23132 :         d->setPjCRS(proj_crs_alter_cs_linear_unit(
    3027       11566 :             d->getPROJContext(), d->m_pj_crs, pszUnitsName, dfInMeters,
    3028             :             pszUnitAuthority, pszUnitCode));
    3029       11566 :         d->undoDemoteFromBoundCRS();
    3030             : 
    3031       11566 :         d->m_osLinearUnits = pszUnitsName;
    3032       11566 :         d->dfToMeter = dfInMeters;
    3033             : 
    3034       11566 :         return OGRERR_NONE;
    3035             :     }
    3036             : 
    3037           0 :     OGR_SRSNode *poCS = GetAttrNode(pszTargetKey);
    3038             : 
    3039           0 :     if (poCS == nullptr)
    3040           0 :         return OGRERR_FAILURE;
    3041             : 
    3042           0 :     char szValue[128] = {'\0'};
    3043           0 :     if (dfInMeters < std::numeric_limits<int>::max() &&
    3044           0 :         dfInMeters > std::numeric_limits<int>::min() &&
    3045           0 :         dfInMeters == static_cast<int>(dfInMeters))
    3046           0 :         snprintf(szValue, sizeof(szValue), "%d", static_cast<int>(dfInMeters));
    3047             :     else
    3048           0 :         OGRsnPrintDouble(szValue, sizeof(szValue), dfInMeters);
    3049             : 
    3050           0 :     OGR_SRSNode *poUnits = nullptr;
    3051           0 :     if (poCS->FindChild("UNIT") >= 0)
    3052             :     {
    3053           0 :         poUnits = poCS->GetChild(poCS->FindChild("UNIT"));
    3054           0 :         if (poUnits->GetChildCount() < 2)
    3055           0 :             return OGRERR_FAILURE;
    3056           0 :         poUnits->GetChild(0)->SetValue(pszUnitsName);
    3057           0 :         poUnits->GetChild(1)->SetValue(szValue);
    3058           0 :         if (poUnits->FindChild("AUTHORITY") != -1)
    3059           0 :             poUnits->DestroyChild(poUnits->FindChild("AUTHORITY"));
    3060             :     }
    3061             :     else
    3062             :     {
    3063           0 :         poUnits = new OGR_SRSNode("UNIT");
    3064           0 :         poUnits->AddChild(new OGR_SRSNode(pszUnitsName));
    3065           0 :         poUnits->AddChild(new OGR_SRSNode(szValue));
    3066             : 
    3067           0 :         poCS->AddChild(poUnits);
    3068             :     }
    3069             : 
    3070           0 :     return OGRERR_NONE;
    3071             : }
    3072             : 
    3073             : /************************************************************************/
    3074             : /*                         OSRSetLinearUnits()                          */
    3075             : /************************************************************************/
    3076             : 
    3077             : /**
    3078             :  * \brief Set the linear units for the target node.
    3079             :  *
    3080             :  * This function is the same as OGRSpatialReference::SetTargetLinearUnits()
    3081             :  *
    3082             :  */
    3083           1 : OGRErr OSRSetTargetLinearUnits(OGRSpatialReferenceH hSRS,
    3084             :                                const char *pszTargetKey, const char *pszUnits,
    3085             :                                double dfInMeters)
    3086             : 
    3087             : {
    3088           1 :     VALIDATE_POINTER1(hSRS, "OSRSetTargetLinearUnits", OGRERR_FAILURE);
    3089             : 
    3090           1 :     return ToPointer(hSRS)->SetTargetLinearUnits(pszTargetKey, pszUnits,
    3091           1 :                                                  dfInMeters);
    3092             : }
    3093             : 
    3094             : /************************************************************************/
    3095             : /*                           GetLinearUnits()                           */
    3096             : /************************************************************************/
    3097             : 
    3098             : /**
    3099             :  * \brief Fetch linear projection units.
    3100             :  *
    3101             :  * If no units are available, a value of "Meters" and 1.0 will be assumed.
    3102             :  * This method only checks directly under the PROJCS, GEOCCS, GEOGCS or
    3103             :  * LOCAL_CS node for units. When called on a Geographic 3D CRS the vertical
    3104             :  * axis units will be returned.
    3105             :  *
    3106             :  * This method does the same thing as the C function OSRGetLinearUnits()
    3107             :  *
    3108             :  * @param ppszName a pointer to be updated with the pointer to the units name.
    3109             :  * The returned value remains internal to the OGRSpatialReference and should
    3110             :  * not be freed, or modified.  It may be invalidated on the next
    3111             :  * OGRSpatialReference call.
    3112             :  *
    3113             :  * @return the value to multiply by linear distances to transform them to
    3114             :  * meters.
    3115             :  * @deprecated Use GetLinearUnits(const char**) const.
    3116             :  */
    3117             : 
    3118           0 : double OGRSpatialReference::GetLinearUnits(char **ppszName) const
    3119             : 
    3120             : {
    3121           0 :     return GetTargetLinearUnits(nullptr, const_cast<const char **>(ppszName));
    3122             : }
    3123             : 
    3124             : /**
    3125             :  * \brief Fetch linear projection units.
    3126             :  *
    3127             :  * If no units are available, a value of "Meters" and 1.0 will be assumed.
    3128             :  * This method only checks directly under the PROJCS, GEOCCS or LOCAL_CS node
    3129             :  * for units.
    3130             :  *
    3131             :  * This method does the same thing as the C function OSRGetLinearUnits()
    3132             :  *
    3133             :  * @param ppszName a pointer to be updated with the pointer to the units name.
    3134             :  * The returned value remains internal to the OGRSpatialReference and should
    3135             :  * not be freed, or modified.  It may be invalidated on the next
    3136             :  * OGRSpatialReference call.
    3137             :  *
    3138             :  * @return the value to multiply by linear distances to transform them to
    3139             :  * meters.
    3140             :  */
    3141             : 
    3142       20473 : double OGRSpatialReference::GetLinearUnits(const char **ppszName) const
    3143             : 
    3144             : {
    3145       20473 :     return GetTargetLinearUnits(nullptr, ppszName);
    3146             : }
    3147             : 
    3148             : /************************************************************************/
    3149             : /*                         OSRGetLinearUnits()                          */
    3150             : /************************************************************************/
    3151             : 
    3152             : /**
    3153             :  * \brief Fetch linear projection units.
    3154             :  *
    3155             :  * This function is the same as OGRSpatialReference::GetLinearUnits()
    3156             :  */
    3157         227 : double OSRGetLinearUnits(OGRSpatialReferenceH hSRS, char **ppszName)
    3158             : 
    3159             : {
    3160         227 :     VALIDATE_POINTER1(hSRS, "OSRGetLinearUnits", 0);
    3161             : 
    3162         227 :     return ToPointer(hSRS)->GetLinearUnits(const_cast<const char **>(ppszName));
    3163             : }
    3164             : 
    3165             : /************************************************************************/
    3166             : /*                        GetTargetLinearUnits()                        */
    3167             : /************************************************************************/
    3168             : 
    3169             : /**
    3170             :  * \brief Fetch linear units for target.
    3171             :  *
    3172             :  * If no units are available, a value of "Meters" and 1.0 will be assumed.
    3173             :  *
    3174             :  * This method does the same thing as the C function OSRGetTargetLinearUnits()
    3175             :  *
    3176             :  * @param pszTargetKey the key to look on. i.e. "PROJCS" or "VERT_CS". Might be
    3177             :  * NULL, in which case PROJCS will be implied (and if not found, LOCAL_CS,
    3178             :  * GEOCCS, GEOGCS and VERT_CS are looked up)
    3179             :  * @param ppszName a pointer to be updated with the pointer to the units name.
    3180             :  * The returned value remains internal to the OGRSpatialReference and should not
    3181             :  * be freed, or modified.  It may be invalidated on the next
    3182             :  * OGRSpatialReference call. ppszName can be set to NULL.
    3183             :  *
    3184             :  * @return the value to multiply by linear distances to transform them to
    3185             :  * meters.
    3186             :  *
    3187             :  * @deprecated Use GetTargetLinearUnits(const char*, const char**)
    3188             :  * const.
    3189             :  */
    3190             : 
    3191       20624 : double OGRSpatialReference::GetTargetLinearUnits(const char *pszTargetKey,
    3192             :                                                  const char **ppszName) const
    3193             : 
    3194             : {
    3195       41248 :     TAKE_OPTIONAL_LOCK();
    3196             : 
    3197       20624 :     d->refreshProjObj();
    3198             : 
    3199       20624 :     pszTargetKey = d->nullifyTargetKeyIfPossible(pszTargetKey);
    3200       20624 :     if (pszTargetKey == nullptr)
    3201             :     {
    3202             :         // Use cached result if available
    3203       20533 :         if (!d->m_osLinearUnits.empty())
    3204             :         {
    3205        8750 :             if (ppszName)
    3206        7969 :                 *ppszName = d->m_osLinearUnits.c_str();
    3207        8750 :             return d->dfToMeter;
    3208             :         }
    3209             : 
    3210             :         while (true)
    3211             :         {
    3212       11783 :             if (d->m_pj_crs == nullptr)
    3213             :             {
    3214         242 :                 break;
    3215             :             }
    3216             : 
    3217       11541 :             d->demoteFromBoundCRS();
    3218       11541 :             PJ *coordSys = nullptr;
    3219       11541 :             if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    3220             :             {
    3221          37 :                 for (int iComponent = 0; iComponent < 2; iComponent++)
    3222             :                 {
    3223          37 :                     auto subCRS = proj_crs_get_sub_crs(d->getPROJContext(),
    3224          37 :                                                        d->m_pj_crs, iComponent);
    3225          37 :                     if (subCRS && proj_get_type(subCRS) == PJ_TYPE_BOUND_CRS)
    3226             :                     {
    3227             :                         auto temp =
    3228           0 :                             proj_get_source_crs(d->getPROJContext(), subCRS);
    3229           0 :                         proj_destroy(subCRS);
    3230           0 :                         subCRS = temp;
    3231             :                     }
    3232          74 :                     if (subCRS &&
    3233          37 :                         (proj_get_type(subCRS) == PJ_TYPE_PROJECTED_CRS ||
    3234          16 :                          proj_get_type(subCRS) == PJ_TYPE_ENGINEERING_CRS ||
    3235          12 :                          proj_get_type(subCRS) == PJ_TYPE_VERTICAL_CRS))
    3236             :                     {
    3237          31 :                         coordSys = proj_crs_get_coordinate_system(
    3238             :                             d->getPROJContext(), subCRS);
    3239          31 :                         proj_destroy(subCRS);
    3240          31 :                         break;
    3241             :                     }
    3242           6 :                     else if (subCRS)
    3243             :                     {
    3244           6 :                         proj_destroy(subCRS);
    3245             :                     }
    3246             :                 }
    3247          31 :                 if (coordSys == nullptr)
    3248             :                 {
    3249           0 :                     d->undoDemoteFromBoundCRS();
    3250           0 :                     break;
    3251             :                 }
    3252             :             }
    3253             :             else
    3254             :             {
    3255       11510 :                 coordSys = proj_crs_get_coordinate_system(d->getPROJContext(),
    3256       11510 :                                                           d->m_pj_crs);
    3257             :             }
    3258             : 
    3259       11541 :             d->undoDemoteFromBoundCRS();
    3260       11541 :             if (!coordSys)
    3261             :             {
    3262           0 :                 break;
    3263             :             }
    3264       11541 :             auto csType = proj_cs_get_type(d->getPROJContext(), coordSys);
    3265             : 
    3266       11541 :             if (csType != PJ_CS_TYPE_CARTESIAN &&
    3267        2242 :                 csType != PJ_CS_TYPE_VERTICAL &&
    3268           0 :                 csType != PJ_CS_TYPE_ELLIPSOIDAL &&
    3269             :                 csType != PJ_CS_TYPE_SPHERICAL)
    3270             :             {
    3271           0 :                 proj_destroy(coordSys);
    3272           0 :                 break;
    3273             :             }
    3274             : 
    3275       11541 :             int axis = 0;
    3276             : 
    3277       11541 :             if (csType == PJ_CS_TYPE_ELLIPSOIDAL ||
    3278             :                 csType == PJ_CS_TYPE_SPHERICAL)
    3279             :             {
    3280             :                 const int axisCount =
    3281        2242 :                     proj_cs_get_axis_count(d->getPROJContext(), coordSys);
    3282             : 
    3283        2242 :                 if (axisCount == 3)
    3284             :                 {
    3285           4 :                     axis = 2;
    3286             :                 }
    3287             :                 else
    3288             :                 {
    3289        2238 :                     proj_destroy(coordSys);
    3290        2238 :                     break;
    3291             :                 }
    3292             :             }
    3293             : 
    3294        9303 :             double dfConvFactor = 0.0;
    3295        9303 :             const char *pszUnitName = nullptr;
    3296        9303 :             if (!proj_cs_get_axis_info(d->getPROJContext(), coordSys, axis,
    3297             :                                        nullptr, nullptr, nullptr, &dfConvFactor,
    3298             :                                        &pszUnitName, nullptr, nullptr))
    3299             :             {
    3300           0 :                 proj_destroy(coordSys);
    3301           0 :                 break;
    3302             :             }
    3303             : 
    3304        9303 :             d->m_osLinearUnits = pszUnitName;
    3305        9303 :             d->dfToMeter = dfConvFactor;
    3306        9303 :             if (ppszName)
    3307        1209 :                 *ppszName = d->m_osLinearUnits.c_str();
    3308             : 
    3309        9303 :             proj_destroy(coordSys);
    3310        9303 :             return dfConvFactor;
    3311             :         }
    3312             : 
    3313        2480 :         d->m_osLinearUnits = "unknown";
    3314        2480 :         d->dfToMeter = 1.0;
    3315             : 
    3316        2480 :         if (ppszName != nullptr)
    3317        2294 :             *ppszName = d->m_osLinearUnits.c_str();
    3318        2480 :         return 1.0;
    3319             :     }
    3320             : 
    3321          91 :     const OGR_SRSNode *poCS = GetAttrNode(pszTargetKey);
    3322             : 
    3323          91 :     if (ppszName != nullptr)
    3324          37 :         *ppszName = "unknown";
    3325             : 
    3326          91 :     if (poCS == nullptr)
    3327          53 :         return 1.0;
    3328             : 
    3329         114 :     for (int iChild = 0; iChild < poCS->GetChildCount(); iChild++)
    3330             :     {
    3331         114 :         const OGR_SRSNode *poChild = poCS->GetChild(iChild);
    3332             : 
    3333         114 :         if (EQUAL(poChild->GetValue(), "UNIT") && poChild->GetChildCount() >= 2)
    3334             :         {
    3335          38 :             if (ppszName != nullptr)
    3336          37 :                 *ppszName = poChild->GetChild(0)->GetValue();
    3337             : 
    3338          38 :             return CPLAtof(poChild->GetChild(1)->GetValue());
    3339             :         }
    3340             :     }
    3341             : 
    3342           0 :     return 1.0;
    3343             : }
    3344             : 
    3345             : /**
    3346             :  * \brief Fetch linear units for target.
    3347             :  *
    3348             :  * If no units are available, a value of "Meters" and 1.0 will be assumed.
    3349             :  *
    3350             :  * This method does the same thing as the C function OSRGetTargetLinearUnits()
    3351             :  *
    3352             :  * @param pszTargetKey the key to look on. i.e. "PROJCS" or "VERT_CS". Might be
    3353             :  * NULL, in which case PROJCS will be implied (and if not found, LOCAL_CS,
    3354             :  * GEOCCS and VERT_CS are looked up)
    3355             :  * @param ppszName a pointer to be updated with the pointer to the units name.
    3356             :  * The returned value remains internal to the OGRSpatialReference and should not
    3357             :  * be freed, or modified.  It may be invalidated on the next
    3358             :  * OGRSpatialReference call. ppszName can be set to NULL.
    3359             :  *
    3360             :  * @return the value to multiply by linear distances to transform them to
    3361             :  * meters.
    3362             :  *
    3363             :  */
    3364             : 
    3365           0 : double OGRSpatialReference::GetTargetLinearUnits(const char *pszTargetKey,
    3366             :                                                  char **ppszName) const
    3367             : 
    3368             : {
    3369           0 :     return GetTargetLinearUnits(pszTargetKey,
    3370           0 :                                 const_cast<const char **>(ppszName));
    3371             : }
    3372             : 
    3373             : /************************************************************************/
    3374             : /*                      OSRGetTargetLinearUnits()                       */
    3375             : /************************************************************************/
    3376             : 
    3377             : /**
    3378             :  * \brief Fetch linear projection units.
    3379             :  *
    3380             :  * This function is the same as OGRSpatialReference::GetTargetLinearUnits()
    3381             :  *
    3382             :  */
    3383           4 : double OSRGetTargetLinearUnits(OGRSpatialReferenceH hSRS,
    3384             :                                const char *pszTargetKey, char **ppszName)
    3385             : 
    3386             : {
    3387           4 :     VALIDATE_POINTER1(hSRS, "OSRGetTargetLinearUnits", 0);
    3388             : 
    3389           4 :     return ToPointer(hSRS)->GetTargetLinearUnits(
    3390           4 :         pszTargetKey, const_cast<const char **>(ppszName));
    3391             : }
    3392             : 
    3393             : /************************************************************************/
    3394             : /*                          GetPrimeMeridian()                          */
    3395             : /************************************************************************/
    3396             : 
    3397             : /**
    3398             :  * \brief Fetch prime meridian info.
    3399             :  *
    3400             :  * Returns the offset of the prime meridian from greenwich in degrees,
    3401             :  * and the prime meridian name (if requested).   If no PRIMEM value exists
    3402             :  * in the coordinate system definition a value of "Greenwich" and an
    3403             :  * offset of 0.0 is assumed.
    3404             :  *
    3405             :  * If the prime meridian name is returned, the pointer is to an internal
    3406             :  * copy of the name. It should not be freed, altered or depended on after
    3407             :  * the next OGR call.
    3408             :  *
    3409             :  * This method is the same as the C function OSRGetPrimeMeridian().
    3410             :  *
    3411             :  * @param ppszName return location for prime meridian name.  If NULL, name
    3412             :  * is not returned.
    3413             :  *
    3414             :  * @return the offset to the GEOGCS prime meridian from greenwich in decimal
    3415             :  * degrees.
    3416             :  * @deprecated Use GetPrimeMeridian(const char**) const.
    3417             :  */
    3418             : 
    3419        1480 : double OGRSpatialReference::GetPrimeMeridian(const char **ppszName) const
    3420             : 
    3421             : {
    3422        2960 :     TAKE_OPTIONAL_LOCK();
    3423             : 
    3424        1480 :     d->refreshProjObj();
    3425             : 
    3426        1480 :     if (!d->m_osPrimeMeridianName.empty())
    3427             :     {
    3428          60 :         if (ppszName != nullptr)
    3429           1 :             *ppszName = d->m_osPrimeMeridianName.c_str();
    3430          60 :         return d->dfFromGreenwich;
    3431             :     }
    3432             : 
    3433             :     while (true)
    3434             :     {
    3435        1420 :         if (!d->m_pj_crs)
    3436           0 :             break;
    3437             : 
    3438        1420 :         auto pm = proj_get_prime_meridian(d->getPROJContext(), d->m_pj_crs);
    3439        1420 :         if (!pm)
    3440           0 :             break;
    3441             : 
    3442        1420 :         d->m_osPrimeMeridianName = proj_get_name(pm);
    3443        1420 :         if (ppszName)
    3444          30 :             *ppszName = d->m_osPrimeMeridianName.c_str();
    3445        1420 :         double dfLongitude = 0.0;
    3446        1420 :         double dfConvFactor = 0.0;
    3447        1420 :         proj_prime_meridian_get_parameters(
    3448             :             d->getPROJContext(), pm, &dfLongitude, &dfConvFactor, nullptr);
    3449        1420 :         proj_destroy(pm);
    3450        2840 :         d->dfFromGreenwich =
    3451        1420 :             dfLongitude * dfConvFactor / CPLAtof(SRS_UA_DEGREE_CONV);
    3452        1420 :         return d->dfFromGreenwich;
    3453             :     }
    3454             : 
    3455           0 :     d->m_osPrimeMeridianName = SRS_PM_GREENWICH;
    3456           0 :     d->dfFromGreenwich = 0.0;
    3457           0 :     if (ppszName != nullptr)
    3458           0 :         *ppszName = d->m_osPrimeMeridianName.c_str();
    3459           0 :     return d->dfFromGreenwich;
    3460             : }
    3461             : 
    3462             : /**
    3463             :  * \brief Fetch prime meridian info.
    3464             :  *
    3465             :  * Returns the offset of the prime meridian from greenwich in degrees,
    3466             :  * and the prime meridian name (if requested).   If no PRIMEM value exists
    3467             :  * in the coordinate system definition a value of "Greenwich" and an
    3468             :  * offset of 0.0 is assumed.
    3469             :  *
    3470             :  * If the prime meridian name is returned, the pointer is to an internal
    3471             :  * copy of the name. It should not be freed, altered or depended on after
    3472             :  * the next OGR call.
    3473             :  *
    3474             :  * This method is the same as the C function OSRGetPrimeMeridian().
    3475             :  *
    3476             :  * @param ppszName return location for prime meridian name.  If NULL, name
    3477             :  * is not returned.
    3478             :  *
    3479             :  * @return the offset to the GEOGCS prime meridian from greenwich in decimal
    3480             :  * degrees.
    3481             :  */
    3482             : 
    3483           0 : double OGRSpatialReference::GetPrimeMeridian(char **ppszName) const
    3484             : 
    3485             : {
    3486           0 :     return GetPrimeMeridian(const_cast<const char **>(ppszName));
    3487             : }
    3488             : 
    3489             : /************************************************************************/
    3490             : /*                        OSRGetPrimeMeridian()                         */
    3491             : /************************************************************************/
    3492             : 
    3493             : /**
    3494             :  * \brief Fetch prime meridian info.
    3495             :  *
    3496             :  * This function is the same as OGRSpatialReference::GetPrimeMeridian()
    3497             :  */
    3498           0 : double OSRGetPrimeMeridian(OGRSpatialReferenceH hSRS, char **ppszName)
    3499             : 
    3500             : {
    3501           0 :     VALIDATE_POINTER1(hSRS, "OSRGetPrimeMeridian", 0);
    3502             : 
    3503           0 :     return ToPointer(hSRS)->GetPrimeMeridian(
    3504           0 :         const_cast<const char **>(ppszName));
    3505             : }
    3506             : 
    3507             : /************************************************************************/
    3508             : /*                             SetGeogCS()                              */
    3509             : /************************************************************************/
    3510             : 
    3511             : /**
    3512             :  * \brief Set geographic coordinate system.
    3513             :  *
    3514             :  * This method is used to set the datum, ellipsoid, prime meridian and
    3515             :  * angular units for a geographic coordinate system.  It can be used on its
    3516             :  * own to establish a geographic spatial reference, or applied to a
    3517             :  * projected coordinate system to establish the underlying geographic
    3518             :  * coordinate system.
    3519             :  *
    3520             :  * This method does the same as the C function OSRSetGeogCS().
    3521             :  *
    3522             :  * @param pszGeogName user visible name for the geographic coordinate system
    3523             :  * (not to serve as a key).
    3524             :  *
    3525             :  * @param pszDatumName key name for this datum.  The OpenGIS specification
    3526             :  * lists some known values, and otherwise EPSG datum names with a standard
    3527             :  * transformation are considered legal keys.
    3528             :  *
    3529             :  * @param pszSpheroidName user visible spheroid name (not to serve as a key)
    3530             :  *
    3531             :  * @param dfSemiMajor the semi major axis of the spheroid.
    3532             :  *
    3533             :  * @param dfInvFlattening the inverse flattening for the spheroid.
    3534             :  * This can be computed from the semi minor axis as
    3535             :  * 1/f = 1.0 / (1.0 - semiminor/semimajor).
    3536             :  *
    3537             :  * @param pszPMName the name of the prime meridian (not to serve as a key)
    3538             :  * If this is NULL a default value of "Greenwich" will be used.
    3539             :  *
    3540             :  * @param dfPMOffset the longitude of Greenwich relative to this prime
    3541             :  * meridian. Always in Degrees
    3542             :  *
    3543             :  * @param pszAngularUnits the angular units name (see ogr_srs_api.h for some
    3544             :  * standard names).  If NULL a value of "degrees" will be assumed.
    3545             :  *
    3546             :  * @param dfConvertToRadians value to multiply angular units by to transform
    3547             :  * them to radians.  A value of SRS_UA_DEGREE_CONV will be used if
    3548             :  * pszAngularUnits is NULL.
    3549             :  *
    3550             :  * @return OGRERR_NONE on success.
    3551             :  */
    3552             : 
    3553        9523 : OGRErr OGRSpatialReference::SetGeogCS(
    3554             :     const char *pszGeogName, const char *pszDatumName,
    3555             :     const char *pszSpheroidName, double dfSemiMajor, double dfInvFlattening,
    3556             :     const char *pszPMName, double dfPMOffset, const char *pszAngularUnits,
    3557             :     double dfConvertToRadians)
    3558             : 
    3559             : {
    3560       19046 :     TAKE_OPTIONAL_LOCK();
    3561             : 
    3562        9523 :     d->bNormInfoSet = FALSE;
    3563        9523 :     d->m_osAngularUnits.clear();
    3564        9523 :     d->m_dfAngularUnitToRadian = 0.0;
    3565        9523 :     d->m_osPrimeMeridianName.clear();
    3566        9523 :     d->dfFromGreenwich = 0.0;
    3567             : 
    3568             :     /* -------------------------------------------------------------------- */
    3569             :     /*      For a geocentric coordinate system we want to set the datum     */
    3570             :     /*      and ellipsoid based on the GEOGCS.  Create the GEOGCS in a      */
    3571             :     /*      temporary srs and use the copy method which has special         */
    3572             :     /*      handling for GEOCCS.                                            */
    3573             :     /* -------------------------------------------------------------------- */
    3574        9523 :     if (IsGeocentric())
    3575             :     {
    3576           4 :         OGRSpatialReference oGCS;
    3577             : 
    3578           2 :         oGCS.SetGeogCS(pszGeogName, pszDatumName, pszSpheroidName, dfSemiMajor,
    3579             :                        dfInvFlattening, pszPMName, dfPMOffset, pszAngularUnits,
    3580             :                        dfConvertToRadians);
    3581           2 :         return CopyGeogCSFrom(&oGCS);
    3582             :     }
    3583             : 
    3584        9521 :     auto cs = proj_create_ellipsoidal_2D_cs(
    3585             :         d->getPROJContext(), PJ_ELLPS2D_LATITUDE_LONGITUDE, pszAngularUnits,
    3586             :         dfConvertToRadians);
    3587             :     // Prime meridian expressed in Degree
    3588        9521 :     auto obj = proj_create_geographic_crs(
    3589             :         d->getPROJContext(), pszGeogName, pszDatumName, pszSpheroidName,
    3590             :         dfSemiMajor, dfInvFlattening, pszPMName, dfPMOffset, nullptr, 0.0, cs);
    3591        9521 :     proj_destroy(cs);
    3592             : 
    3593       14371 :     if (d->m_pj_crs == nullptr || d->m_pjType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    3594        4850 :         d->m_pjType == PJ_TYPE_GEOGRAPHIC_3D_CRS)
    3595             :     {
    3596        4671 :         d->setPjCRS(obj);
    3597             :     }
    3598        4850 :     else if (d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    3599             :     {
    3600        9700 :         d->setPjCRS(
    3601        4850 :             proj_crs_alter_geodetic_crs(d->getPROJContext(), d->m_pj_crs, obj));
    3602        4850 :         proj_destroy(obj);
    3603             :     }
    3604             :     else
    3605             :     {
    3606           0 :         proj_destroy(obj);
    3607             :     }
    3608             : 
    3609        9521 :     return OGRERR_NONE;
    3610             : }
    3611             : 
    3612             : /************************************************************************/
    3613             : /*                            OSRSetGeogCS()                            */
    3614             : /************************************************************************/
    3615             : 
    3616             : /**
    3617             :  * \brief Set geographic coordinate system.
    3618             :  *
    3619             :  * This function is the same as OGRSpatialReference::SetGeogCS()
    3620             :  */
    3621          18 : OGRErr OSRSetGeogCS(OGRSpatialReferenceH hSRS, const char *pszGeogName,
    3622             :                     const char *pszDatumName, const char *pszSpheroidName,
    3623             :                     double dfSemiMajor, double dfInvFlattening,
    3624             :                     const char *pszPMName, double dfPMOffset,
    3625             :                     const char *pszAngularUnits, double dfConvertToRadians)
    3626             : 
    3627             : {
    3628          18 :     VALIDATE_POINTER1(hSRS, "OSRSetGeogCS", OGRERR_FAILURE);
    3629             : 
    3630          18 :     return ToPointer(hSRS)->SetGeogCS(pszGeogName, pszDatumName,
    3631             :                                       pszSpheroidName, dfSemiMajor,
    3632             :                                       dfInvFlattening, pszPMName, dfPMOffset,
    3633          18 :                                       pszAngularUnits, dfConvertToRadians);
    3634             : }
    3635             : 
    3636             : /************************************************************************/
    3637             : /*                         SetWellKnownGeogCS()                         */
    3638             : /************************************************************************/
    3639             : 
    3640             : /**
    3641             :  * \brief Set a GeogCS based on well known name.
    3642             :  *
    3643             :  * This may be called on an empty OGRSpatialReference to make a geographic
    3644             :  * coordinate system, or on something with an existing PROJCS node to
    3645             :  * set the underlying geographic coordinate system of a projected coordinate
    3646             :  * system.
    3647             :  *
    3648             :  * The following well known text values are currently supported,
    3649             :  * Except for "EPSG:n", the others are without dependency on EPSG data files:
    3650             :  * <ul>
    3651             :  * <li> "EPSG:n": where n is the code a Geographic coordinate reference system.
    3652             :  * <li> "WGS84": same as "EPSG:4326" (axis order lat/long).
    3653             :  * <li> "WGS72": same as "EPSG:4322" (axis order lat/long).
    3654             :  * <li> "NAD83": same as "EPSG:4269" (axis order lat/long).
    3655             :  * <li> "NAD27": same as "EPSG:4267" (axis order lat/long).
    3656             :  * <li> "CRS84", "CRS:84": same as "WGS84" but with axis order long/lat.
    3657             :  * <li> "CRS72", "CRS:72": same as "WGS72" but with axis order long/lat.
    3658             :  * <li> "CRS27", "CRS:27": same as "NAD27" but with axis order long/lat.
    3659             :  * </ul>
    3660             :  *
    3661             :  * @param pszName name of well known geographic coordinate system.
    3662             :  * @return OGRERR_NONE on success, or OGRERR_FAILURE if the name isn't
    3663             :  * recognised, the target object is already initialized, or an EPSG value
    3664             :  * can't be successfully looked up.
    3665             :  */
    3666             : 
    3667        3129 : OGRErr OGRSpatialReference::SetWellKnownGeogCS(const char *pszName)
    3668             : 
    3669             : {
    3670        6258 :     TAKE_OPTIONAL_LOCK();
    3671             : 
    3672             :     /* -------------------------------------------------------------------- */
    3673             :     /*      Check for EPSG authority numbers.                               */
    3674             :     /* -------------------------------------------------------------------- */
    3675        3129 :     if (STARTS_WITH_CI(pszName, "EPSG:") || STARTS_WITH_CI(pszName, "EPSGA:"))
    3676             :     {
    3677          84 :         OGRSpatialReference oSRS2;
    3678          42 :         const OGRErr eErr = oSRS2.importFromEPSG(atoi(pszName + 5));
    3679          42 :         if (eErr != OGRERR_NONE)
    3680           0 :             return eErr;
    3681             : 
    3682          42 :         if (!oSRS2.IsGeographic())
    3683           0 :             return OGRERR_FAILURE;
    3684             : 
    3685          42 :         return CopyGeogCSFrom(&oSRS2);
    3686             :     }
    3687             : 
    3688             :     /* -------------------------------------------------------------------- */
    3689             :     /*      Check for simple names.                                         */
    3690             :     /* -------------------------------------------------------------------- */
    3691        3087 :     const char *pszWKT = nullptr;
    3692             : 
    3693        3087 :     if (EQUAL(pszName, "WGS84"))
    3694             :     {
    3695        2273 :         pszWKT = SRS_WKT_WGS84_LAT_LONG;
    3696             :     }
    3697         814 :     else if (EQUAL(pszName, "CRS84") || EQUAL(pszName, "CRS:84"))
    3698             :     {
    3699         632 :         pszWKT =
    3700             :             "GEOGCRS[\"WGS 84 (CRS84)\",DATUM[\"World Geodetic System 1984\","
    3701             :             "ELLIPSOID[\"WGS "
    3702             :             "84\",6378137,298.257223563,LENGTHUNIT[\"metre\",1]]],"
    3703             :             "PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433]],"
    3704             :             "CS[ellipsoidal,2],AXIS[\"geodetic longitude (Lon)\",east,ORDER[1],"
    3705             :             "ANGLEUNIT[\"degree\",0.0174532925199433]],"
    3706             :             "AXIS[\"geodetic latitude (Lat)\",north,ORDER[2],"
    3707             :             "ANGLEUNIT[\"degree\",0.0174532925199433]],"
    3708             :             "USAGE[SCOPE[\"unknown\"],AREA[\"World\"],BBOX[-90,-180,90,180]],"
    3709             :             "ID[\"OGC\",\"CRS84\"]]";
    3710             :     }
    3711         182 :     else if (EQUAL(pszName, "WGS72"))
    3712          19 :         pszWKT =
    3713             :             "GEOGCS[\"WGS 72\",DATUM[\"WGS_1972\","
    3714             :             "SPHEROID[\"WGS 72\",6378135,298.26,AUTHORITY[\"EPSG\",\"7043\"]],"
    3715             :             "AUTHORITY[\"EPSG\",\"6322\"]],"
    3716             :             "PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],"
    3717             :             "UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],"
    3718             :             "AXIS[\"Latitude\",NORTH],AXIS[\"Longitude\",EAST],"
    3719             :             "AUTHORITY[\"EPSG\",\"4322\"]]";
    3720             : 
    3721         163 :     else if (EQUAL(pszName, "NAD27"))
    3722         135 :         pszWKT =
    3723             :             "GEOGCS[\"NAD27\",DATUM[\"North_American_Datum_1927\","
    3724             :             "SPHEROID[\"Clarke 1866\",6378206.4,294.9786982138982,"
    3725             :             "AUTHORITY[\"EPSG\",\"7008\"]],AUTHORITY[\"EPSG\",\"6267\"]],"
    3726             :             "PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],"
    3727             :             "UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],"
    3728             :             "AXIS[\"Latitude\",NORTH],AXIS[\"Longitude\",EAST],"
    3729             :             "AUTHORITY[\"EPSG\",\"4267\"]]";
    3730             : 
    3731          28 :     else if (EQUAL(pszName, "CRS27") || EQUAL(pszName, "CRS:27"))
    3732           0 :         pszWKT =
    3733             :             "GEOGCS[\"NAD27\",DATUM[\"North_American_Datum_1927\","
    3734             :             "SPHEROID[\"Clarke 1866\",6378206.4,294.9786982138982,"
    3735             :             "AUTHORITY[\"EPSG\",\"7008\"]],AUTHORITY[\"EPSG\",\"6267\"]],"
    3736             :             "PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],"
    3737             :             "UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],"
    3738             :             "AXIS[\"Longitude\",EAST],AXIS[\"Latitude\",NORTH]]";
    3739             : 
    3740          28 :     else if (EQUAL(pszName, "NAD83"))
    3741          24 :         pszWKT =
    3742             :             "GEOGCS[\"NAD83\",DATUM[\"North_American_Datum_1983\","
    3743             :             "SPHEROID[\"GRS 1980\",6378137,298.257222101,"
    3744             :             "AUTHORITY[\"EPSG\",\"7019\"]],"
    3745             :             "AUTHORITY[\"EPSG\",\"6269\"]],"
    3746             :             "PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],"
    3747             :             "UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],"
    3748             :             "AXIS[\"Latitude\",NORTH],AXIS[\"Longitude\",EAST],AUTHORITY["
    3749             :             "\"EPSG\",\"4269\"]]";
    3750             : 
    3751           4 :     else if (EQUAL(pszName, "CRS83") || EQUAL(pszName, "CRS:83"))
    3752           0 :         pszWKT =
    3753             :             "GEOGCS[\"NAD83\",DATUM[\"North_American_Datum_1983\","
    3754             :             "SPHEROID[\"GRS 1980\",6378137,298.257222101,"
    3755             :             "AUTHORITY[\"EPSG\",\"7019\"]],"
    3756             :             "AUTHORITY[\"EPSG\",\"6269\"]],"
    3757             :             "PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],"
    3758             :             "UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],"
    3759             :             "AXIS[\"Longitude\",EAST],AXIS[\"Latitude\",NORTH]]";
    3760             : 
    3761             :     else
    3762           4 :         return OGRERR_FAILURE;
    3763             : 
    3764             :     /* -------------------------------------------------------------------- */
    3765             :     /*      Import the WKT                                                  */
    3766             :     /* -------------------------------------------------------------------- */
    3767        6166 :     OGRSpatialReference oSRS2;
    3768        3083 :     const OGRErr eErr = oSRS2.importFromWkt(pszWKT);
    3769        3083 :     if (eErr != OGRERR_NONE)
    3770           0 :         return eErr;
    3771             : 
    3772             :     /* -------------------------------------------------------------------- */
    3773             :     /*      Copy over.                                                      */
    3774             :     /* -------------------------------------------------------------------- */
    3775        3083 :     return CopyGeogCSFrom(&oSRS2);
    3776             : }
    3777             : 
    3778             : /************************************************************************/
    3779             : /*                       OSRSetWellKnownGeogCS()                        */
    3780             : /************************************************************************/
    3781             : 
    3782             : /**
    3783             :  * \brief Set a GeogCS based on well known name.
    3784             :  *
    3785             :  * This function is the same as OGRSpatialReference::SetWellKnownGeogCS()
    3786             :  */
    3787         152 : OGRErr OSRSetWellKnownGeogCS(OGRSpatialReferenceH hSRS, const char *pszName)
    3788             : 
    3789             : {
    3790         152 :     VALIDATE_POINTER1(hSRS, "OSRSetWellKnownGeogCS", OGRERR_FAILURE);
    3791             : 
    3792         152 :     return ToPointer(hSRS)->SetWellKnownGeogCS(pszName);
    3793             : }
    3794             : 
    3795             : /************************************************************************/
    3796             : /*                           CopyGeogCSFrom()                           */
    3797             : /************************************************************************/
    3798             : 
    3799             : /**
    3800             :  * \brief Copy GEOGCS from another OGRSpatialReference.
    3801             :  *
    3802             :  * The GEOGCS information is copied into this OGRSpatialReference from another.
    3803             :  * If this object has a PROJCS root already, the GEOGCS is installed within
    3804             :  * it, otherwise it is installed as the root.
    3805             :  *
    3806             :  * @param poSrcSRS the spatial reference to copy the GEOGCS information from.
    3807             :  *
    3808             :  * @return OGRERR_NONE on success or an error code.
    3809             :  */
    3810             : 
    3811        3722 : OGRErr OGRSpatialReference::CopyGeogCSFrom(const OGRSpatialReference *poSrcSRS)
    3812             : 
    3813             : {
    3814        7444 :     TAKE_OPTIONAL_LOCK();
    3815             : 
    3816        3722 :     d->bNormInfoSet = FALSE;
    3817        3722 :     d->m_osAngularUnits.clear();
    3818        3722 :     d->m_dfAngularUnitToRadian = 0.0;
    3819        3722 :     d->m_osPrimeMeridianName.clear();
    3820        3722 :     d->dfFromGreenwich = 0.0;
    3821             : 
    3822        3722 :     d->refreshProjObj();
    3823        3722 :     poSrcSRS->d->refreshProjObj();
    3824        3722 :     if (!poSrcSRS->d->m_pj_crs)
    3825             :     {
    3826           1 :         return OGRERR_FAILURE;
    3827             :     }
    3828             :     auto geodCRS =
    3829        3721 :         proj_crs_get_geodetic_crs(d->getPROJContext(), poSrcSRS->d->m_pj_crs);
    3830        3721 :     if (!geodCRS)
    3831             :     {
    3832           0 :         return OGRERR_FAILURE;
    3833             :     }
    3834             : 
    3835             :     /* -------------------------------------------------------------------- */
    3836             :     /*      Handle geocentric coordinate systems specially.  We just        */
    3837             :     /*      want to copy the DATUM.                                         */
    3838             :     /* -------------------------------------------------------------------- */
    3839        3721 :     if (d->m_pjType == PJ_TYPE_GEOCENTRIC_CRS)
    3840             :     {
    3841           3 :         auto datum = proj_crs_get_datum(d->getPROJContext(), geodCRS);
    3842             : #if PROJ_VERSION_MAJOR > 7 ||                                                  \
    3843             :     (PROJ_VERSION_MAJOR == 7 && PROJ_VERSION_MINOR >= 2)
    3844             :         if (datum == nullptr)
    3845             :         {
    3846             :             datum = proj_crs_get_datum_ensemble(d->getPROJContext(), geodCRS);
    3847             :         }
    3848             : #endif
    3849           3 :         if (datum == nullptr)
    3850             :         {
    3851           0 :             proj_destroy(geodCRS);
    3852           0 :             return OGRERR_FAILURE;
    3853             :         }
    3854             : 
    3855           3 :         const char *pszUnitName = nullptr;
    3856           3 :         double unitConvFactor = GetLinearUnits(&pszUnitName);
    3857             : 
    3858           3 :         auto pj_crs = proj_create_geocentric_crs_from_datum(
    3859           3 :             d->getPROJContext(), proj_get_name(d->m_pj_crs), datum, pszUnitName,
    3860             :             unitConvFactor);
    3861           3 :         proj_destroy(datum);
    3862             : 
    3863           3 :         d->setPjCRS(pj_crs);
    3864             :     }
    3865             : 
    3866        3718 :     else if (d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    3867             :     {
    3868         319 :         auto pj_crs = proj_crs_alter_geodetic_crs(d->getPROJContext(),
    3869         319 :                                                   d->m_pj_crs, geodCRS);
    3870         319 :         d->setPjCRS(pj_crs);
    3871             :     }
    3872             : 
    3873             :     else
    3874             :     {
    3875        3399 :         d->setPjCRS(proj_clone(d->getPROJContext(), geodCRS));
    3876             :     }
    3877             : 
    3878             :     // Apply TOWGS84 of source CRS
    3879        3721 :     if (poSrcSRS->d->m_pjType == PJ_TYPE_BOUND_CRS)
    3880             :     {
    3881             :         auto target =
    3882           1 :             proj_get_target_crs(d->getPROJContext(), poSrcSRS->d->m_pj_crs);
    3883           1 :         auto co = proj_crs_get_coordoperation(d->getPROJContext(),
    3884           1 :                                               poSrcSRS->d->m_pj_crs);
    3885           1 :         d->setPjCRS(proj_crs_create_bound_crs(d->getPROJContext(), d->m_pj_crs,
    3886             :                                               target, co));
    3887           1 :         proj_destroy(target);
    3888           1 :         proj_destroy(co);
    3889             :     }
    3890             : 
    3891        3721 :     proj_destroy(geodCRS);
    3892             : 
    3893        3721 :     return OGRERR_NONE;
    3894             : }
    3895             : 
    3896             : /************************************************************************/
    3897             : /*                         OSRCopyGeogCSFrom()                          */
    3898             : /************************************************************************/
    3899             : 
    3900             : /**
    3901             :  * \brief Copy GEOGCS from another OGRSpatialReference.
    3902             :  *
    3903             :  * This function is the same as OGRSpatialReference::CopyGeogCSFrom()
    3904             :  */
    3905           1 : OGRErr OSRCopyGeogCSFrom(OGRSpatialReferenceH hSRS,
    3906             :                          const OGRSpatialReferenceH hSrcSRS)
    3907             : 
    3908             : {
    3909           1 :     VALIDATE_POINTER1(hSRS, "OSRCopyGeogCSFrom", OGRERR_FAILURE);
    3910           1 :     VALIDATE_POINTER1(hSrcSRS, "OSRCopyGeogCSFrom", OGRERR_FAILURE);
    3911             : 
    3912           1 :     return ToPointer(hSRS)->CopyGeogCSFrom(ToPointer(hSrcSRS));
    3913             : }
    3914             : 
    3915             : /************************************************************************/
    3916             : /*                   SET_FROM_USER_INPUT_LIMITATIONS_get()              */
    3917             : /************************************************************************/
    3918             : 
    3919             : /** Limitations for OGRSpatialReference::SetFromUserInput().
    3920             :  *
    3921             :  * Currently ALLOW_NETWORK_ACCESS=NO and ALLOW_FILE_ACCESS=NO.
    3922             :  */
    3923             : const char *const OGRSpatialReference::SET_FROM_USER_INPUT_LIMITATIONS[] = {
    3924             :     "ALLOW_NETWORK_ACCESS=NO", "ALLOW_FILE_ACCESS=NO", nullptr};
    3925             : 
    3926             : /**
    3927             :  * \brief Return OGRSpatialReference::SET_FROM_USER_INPUT_LIMITATIONS
    3928             :  */
    3929        2813 : CSLConstList OGRSpatialReference::SET_FROM_USER_INPUT_LIMITATIONS_get()
    3930             : {
    3931        2813 :     return SET_FROM_USER_INPUT_LIMITATIONS;
    3932             : }
    3933             : 
    3934             : /************************************************************************/
    3935             : /*                      RemoveIDFromMemberOfEnsembles()                 */
    3936             : /************************************************************************/
    3937             : 
    3938             : // cppcheck-suppress constParameterReference
    3939         198 : static void RemoveIDFromMemberOfEnsembles(CPLJSONObject &obj)
    3940             : {
    3941             :     // Remove "id" from members of datum ensembles for compatibility with
    3942             :     // older PROJ versions
    3943             :     // Cf https://github.com/opengeospatial/geoparquet/discussions/110
    3944             :     // and https://github.com/OSGeo/PROJ/pull/3221
    3945         198 :     if (obj.GetType() == CPLJSONObject::Type::Object)
    3946             :     {
    3947         243 :         for (auto &subObj : obj.GetChildren())
    3948             :         {
    3949         191 :             RemoveIDFromMemberOfEnsembles(subObj);
    3950             :         }
    3951             :     }
    3952         162 :     else if (obj.GetType() == CPLJSONObject::Type::Array &&
    3953         162 :              obj.GetName() == "members")
    3954             :     {
    3955          51 :         for (auto &subObj : obj.ToArray())
    3956             :         {
    3957          44 :             if (subObj.GetType() == CPLJSONObject::Type::Object)
    3958             :             {
    3959          43 :                 subObj.Delete("id");
    3960             :             }
    3961             :         }
    3962             :     }
    3963         198 : }
    3964             : 
    3965             : /************************************************************************/
    3966             : /*                          SetFromUserInput()                          */
    3967             : /************************************************************************/
    3968             : 
    3969             : /**
    3970             :  * \brief Set spatial reference from various text formats.
    3971             :  *
    3972             :  * This method will examine the provided input, and try to deduce the
    3973             :  * format, and then use it to initialize the spatial reference system.  It
    3974             :  * may take the following forms:
    3975             :  *
    3976             :  * <ol>
    3977             :  * <li> Well Known Text definition - passed on to importFromWkt().
    3978             :  * <li> "EPSG:n" - number passed on to importFromEPSG().
    3979             :  * <li> "EPSGA:n" - number passed on to importFromEPSGA().
    3980             :  * <li> "AUTO:proj_id,unit_id,lon0,lat0" - WMS auto projections.
    3981             :  * <li> "urn:ogc:def:crs:EPSG::n" - ogc urns
    3982             :  * <li> PROJ.4 definitions - passed on to importFromProj4().
    3983             :  * <li> filename - file read for WKT, XML or PROJ.4 definition.
    3984             :  * <li> well known name accepted by SetWellKnownGeogCS(), such as NAD27, NAD83,
    3985             :  * WGS84 or WGS72.
    3986             :  * <li> "IGNF:xxxx", "ESRI:xxxx", etc. from definitions from the PROJ database;
    3987             :  * <li> PROJJSON (PROJ &gt;= 6.2)
    3988             :  * </ol>
    3989             :  *
    3990             :  * It is expected that this method will be extended in the future to support
    3991             :  * XML and perhaps a simplified "minilanguage" for indicating common UTM and
    3992             :  * State Plane definitions.
    3993             :  *
    3994             :  * This method is intended to be flexible, but by its nature it is
    3995             :  * imprecise as it must guess information about the format intended.  When
    3996             :  * possible applications should call the specific method appropriate if the
    3997             :  * input is known to be in a particular format.
    3998             :  *
    3999             :  * This method does the same thing as the OSRSetFromUserInput() function.
    4000             :  *
    4001             :  * @param pszDefinition text definition to try to deduce SRS from.
    4002             :  *
    4003             :  * @return OGRERR_NONE on success, or an error code if the name isn't
    4004             :  * recognised, the definition is corrupt, or an EPSG value can't be
    4005             :  * successfully looked up.
    4006             :  */
    4007             : 
    4008       19447 : OGRErr OGRSpatialReference::SetFromUserInput(const char *pszDefinition)
    4009             : {
    4010       19447 :     return SetFromUserInput(pszDefinition, nullptr);
    4011             : }
    4012             : 
    4013             : /**
    4014             :  * \brief Set spatial reference from various text formats.
    4015             :  *
    4016             :  * This method will examine the provided input, and try to deduce the
    4017             :  * format, and then use it to initialize the spatial reference system.  It
    4018             :  * may take the following forms:
    4019             :  *
    4020             :  * <ol>
    4021             :  * <li> Well Known Text definition - passed on to importFromWkt().
    4022             :  * <li> "EPSG:n" - number passed on to importFromEPSG().
    4023             :  * <li> "EPSGA:n" - number passed on to importFromEPSGA().
    4024             :  * <li> "AUTO:proj_id,unit_id,lon0,lat0" - WMS auto projections.
    4025             :  * <li> "urn:ogc:def:crs:EPSG::n" - ogc urns
    4026             :  * <li> PROJ.4 definitions - passed on to importFromProj4().
    4027             :  * <li> filename - file read for WKT, XML or PROJ.4 definition.
    4028             :  * <li> well known name accepted by SetWellKnownGeogCS(), such as NAD27, NAD83,
    4029             :  * WGS84 or WGS72.
    4030             :  * <li> "IGNF:xxxx", "ESRI:xxxx", etc. from definitions from the PROJ database;
    4031             :  * <li> PROJJSON (PROJ &gt;= 6.2)
    4032             :  * </ol>
    4033             :  *
    4034             :  * It is expected that this method will be extended in the future to support
    4035             :  * XML and perhaps a simplified "minilanguage" for indicating common UTM and
    4036             :  * State Plane definitions.
    4037             :  *
    4038             :  * This method is intended to be flexible, but by its nature it is
    4039             :  * imprecise as it must guess information about the format intended.  When
    4040             :  * possible applications should call the specific method appropriate if the
    4041             :  * input is known to be in a particular format.
    4042             :  *
    4043             :  * This method does the same thing as the OSRSetFromUserInput() and
    4044             :  * OSRSetFromUserInputEx() functions.
    4045             :  *
    4046             :  * @param pszDefinition text definition to try to deduce SRS from.
    4047             :  *
    4048             :  * @param papszOptions NULL terminated list of options, or NULL.
    4049             :  * <ol>
    4050             :  * <li> ALLOW_NETWORK_ACCESS=YES/NO.
    4051             :  *      Whether http:// or https:// access is allowed. Defaults to YES.
    4052             :  * <li> ALLOW_FILE_ACCESS=YES/NO.
    4053             :  *      Whether reading a file using the Virtual File System layer is allowed
    4054             :  *      (can also involve network access). Defaults to YES.
    4055             :  * </ol>
    4056             :  *
    4057             :  * @return OGRERR_NONE on success, or an error code if the name isn't
    4058             :  * recognised, the definition is corrupt, or an EPSG value can't be
    4059             :  * successfully looked up.
    4060             :  */
    4061             : 
    4062       26627 : OGRErr OGRSpatialReference::SetFromUserInput(const char *pszDefinition,
    4063             :                                              CSLConstList papszOptions)
    4064             : {
    4065       53254 :     TAKE_OPTIONAL_LOCK();
    4066             : 
    4067             :     // Skip leading white space
    4068       26629 :     while (isspace(static_cast<unsigned char>(*pszDefinition)))
    4069           2 :         pszDefinition++;
    4070             : 
    4071       26627 :     if (STARTS_WITH_CI(pszDefinition, "ESRI::"))
    4072             :     {
    4073           1 :         pszDefinition += 6;
    4074             :     }
    4075             : 
    4076             :     /* -------------------------------------------------------------------- */
    4077             :     /*      Is it a recognised syntax?                                      */
    4078             :     /* -------------------------------------------------------------------- */
    4079       26627 :     const char *const wktKeywords[] = {
    4080             :         // WKT1
    4081             :         "GEOGCS", "GEOCCS", "PROJCS", "VERT_CS", "COMPD_CS", "LOCAL_CS",
    4082             :         // WKT2"
    4083             :         "GEODCRS", "GEOGCRS", "GEODETICCRS", "GEOGRAPHICCRS", "PROJCRS",
    4084             :         "PROJECTEDCRS", "VERTCRS", "VERTICALCRS", "COMPOUNDCRS", "ENGCRS",
    4085             :         "ENGINEERINGCRS", "BOUNDCRS", "DERIVEDPROJCRS", "COORDINATEMETADATA"};
    4086      395813 :     for (const char *keyword : wktKeywords)
    4087             :     {
    4088      377926 :         if (STARTS_WITH_CI(pszDefinition, keyword))
    4089             :         {
    4090        8740 :             return importFromWkt(pszDefinition);
    4091             :         }
    4092             :     }
    4093             : 
    4094       17887 :     const bool bStartsWithEPSG = STARTS_WITH_CI(pszDefinition, "EPSG:");
    4095       17887 :     if (bStartsWithEPSG || STARTS_WITH_CI(pszDefinition, "EPSGA:"))
    4096             :     {
    4097       10355 :         OGRErr eStatus = OGRERR_NONE;
    4098             : 
    4099       10355 :         if (strchr(pszDefinition, '+') || strchr(pszDefinition, '@'))
    4100             :         {
    4101             :             // Use proj_create() as it allows things like EPSG:3157+4617
    4102             :             // that are not normally supported by the below code that
    4103             :             // builds manually a compound CRS
    4104          62 :             PJ *pj = proj_create(d->getPROJContext(), pszDefinition);
    4105          62 :             if (!pj)
    4106             :             {
    4107           1 :                 return OGRERR_FAILURE;
    4108             :             }
    4109          61 :             Clear();
    4110          61 :             d->setPjCRS(pj);
    4111          61 :             return OGRERR_NONE;
    4112             :         }
    4113             :         else
    4114             :         {
    4115             :             eStatus =
    4116       10293 :                 importFromEPSG(atoi(pszDefinition + (bStartsWithEPSG ? 5 : 6)));
    4117             :         }
    4118             : 
    4119       10293 :         return eStatus;
    4120             :     }
    4121             : 
    4122        7532 :     if (STARTS_WITH_CI(pszDefinition, "urn:ogc:def:crs:") ||
    4123        6814 :         STARTS_WITH_CI(pszDefinition, "urn:ogc:def:crs,crs:") ||
    4124        6813 :         STARTS_WITH_CI(pszDefinition, "urn:x-ogc:def:crs:") ||
    4125        6755 :         STARTS_WITH_CI(pszDefinition, "urn:opengis:crs:") ||
    4126        6755 :         STARTS_WITH_CI(pszDefinition, "urn:opengis:def:crs:") ||
    4127        6755 :         STARTS_WITH_CI(pszDefinition, "urn:ogc:def:coordinateMetadata:"))
    4128         777 :         return importFromURN(pszDefinition);
    4129             : 
    4130        6755 :     if (STARTS_WITH_CI(pszDefinition, "http://opengis.net/def/crs") ||
    4131        6753 :         STARTS_WITH_CI(pszDefinition, "https://opengis.net/def/crs") ||
    4132        6752 :         STARTS_WITH_CI(pszDefinition, "http://www.opengis.net/def/crs") ||
    4133        1441 :         STARTS_WITH_CI(pszDefinition, "https://www.opengis.net/def/crs") ||
    4134        1440 :         STARTS_WITH_CI(pszDefinition, "www.opengis.net/def/crs"))
    4135        5315 :         return importFromCRSURL(pszDefinition);
    4136             : 
    4137        1440 :     if (STARTS_WITH_CI(pszDefinition, "AUTO:"))
    4138           1 :         return importFromWMSAUTO(pszDefinition);
    4139             : 
    4140             :     // WMS/WCS OGC codes like OGC:CRS84.
    4141        1439 :     if (EQUAL(pszDefinition, "OGC:CRS84"))
    4142          76 :         return SetWellKnownGeogCS(pszDefinition + 4);
    4143             : 
    4144        1363 :     if (STARTS_WITH_CI(pszDefinition, "CRS:"))
    4145           1 :         return SetWellKnownGeogCS(pszDefinition);
    4146             : 
    4147        1362 :     if (STARTS_WITH_CI(pszDefinition, "DICT:") && strstr(pszDefinition, ","))
    4148             :     {
    4149           0 :         char *pszFile = CPLStrdup(pszDefinition + 5);
    4150           0 :         char *pszCode = strstr(pszFile, ",") + 1;
    4151             : 
    4152           0 :         pszCode[-1] = '\0';
    4153             : 
    4154           0 :         OGRErr err = importFromDict(pszFile, pszCode);
    4155           0 :         CPLFree(pszFile);
    4156             : 
    4157           0 :         return err;
    4158             :     }
    4159             : 
    4160        1362 :     if (EQUAL(pszDefinition, "NAD27") || EQUAL(pszDefinition, "NAD83") ||
    4161        1357 :         EQUAL(pszDefinition, "WGS84") || EQUAL(pszDefinition, "WGS72"))
    4162             :     {
    4163         409 :         Clear();
    4164         409 :         return SetWellKnownGeogCS(pszDefinition);
    4165             :     }
    4166             : 
    4167             :     // PROJJSON
    4168         953 :     if (pszDefinition[0] == '{' && strstr(pszDefinition, "\"type\"") &&
    4169         178 :         (strstr(pszDefinition, "GeodeticCRS") ||
    4170         178 :          strstr(pszDefinition, "GeographicCRS") ||
    4171         129 :          strstr(pszDefinition, "ProjectedCRS") ||
    4172           0 :          strstr(pszDefinition, "VerticalCRS") ||
    4173           0 :          strstr(pszDefinition, "BoundCRS") ||
    4174           0 :          strstr(pszDefinition, "CompoundCRS") ||
    4175           0 :          strstr(pszDefinition, "DerivedGeodeticCRS") ||
    4176           0 :          strstr(pszDefinition, "DerivedGeographicCRS") ||
    4177           0 :          strstr(pszDefinition, "DerivedProjectedCRS") ||
    4178           0 :          strstr(pszDefinition, "DerivedVerticalCRS") ||
    4179           0 :          strstr(pszDefinition, "EngineeringCRS") ||
    4180           0 :          strstr(pszDefinition, "DerivedEngineeringCRS") ||
    4181           0 :          strstr(pszDefinition, "ParametricCRS") ||
    4182           0 :          strstr(pszDefinition, "DerivedParametricCRS") ||
    4183           0 :          strstr(pszDefinition, "TemporalCRS") ||
    4184           0 :          strstr(pszDefinition, "DerivedTemporalCRS")))
    4185             :     {
    4186             :         PJ *pj;
    4187         178 :         if (strstr(pszDefinition, "datum_ensemble") != nullptr)
    4188             :         {
    4189             :             // PROJ < 9.0.1 doesn't like a datum_ensemble whose member have
    4190             :             // a unknown id.
    4191           7 :             CPLJSONDocument oCRSDoc;
    4192           7 :             if (!oCRSDoc.LoadMemory(pszDefinition))
    4193           0 :                 return OGRERR_CORRUPT_DATA;
    4194           7 :             CPLJSONObject oCRSRoot = oCRSDoc.GetRoot();
    4195           7 :             RemoveIDFromMemberOfEnsembles(oCRSRoot);
    4196           7 :             pj = proj_create(d->getPROJContext(), oCRSRoot.ToString().c_str());
    4197             :         }
    4198             :         else
    4199             :         {
    4200         171 :             pj = proj_create(d->getPROJContext(), pszDefinition);
    4201             :         }
    4202         178 :         if (!pj)
    4203             :         {
    4204           2 :             return OGRERR_FAILURE;
    4205             :         }
    4206         176 :         Clear();
    4207         176 :         d->setPjCRS(pj);
    4208         176 :         return OGRERR_NONE;
    4209             :     }
    4210             : 
    4211         775 :     if (strstr(pszDefinition, "+proj") != nullptr ||
    4212         325 :         strstr(pszDefinition, "+init") != nullptr)
    4213         450 :         return importFromProj4(pszDefinition);
    4214             : 
    4215         325 :     if (STARTS_WITH_CI(pszDefinition, "http://") ||
    4216         300 :         STARTS_WITH_CI(pszDefinition, "https://"))
    4217             :     {
    4218          26 :         if (CPLTestBool(CSLFetchNameValueDef(papszOptions,
    4219             :                                              "ALLOW_NETWORK_ACCESS", "YES")))
    4220           0 :             return importFromUrl(pszDefinition);
    4221             : 
    4222          26 :         CPLError(CE_Failure, CPLE_AppDefined,
    4223             :                  "Cannot import %s due to ALLOW_NETWORK_ACCESS=NO",
    4224             :                  pszDefinition);
    4225          26 :         return OGRERR_FAILURE;
    4226             :     }
    4227             : 
    4228         299 :     if (EQUAL(pszDefinition, "osgb:BNG"))
    4229             :     {
    4230           8 :         return importFromEPSG(27700);
    4231             :     }
    4232             : 
    4233             :     // Used by German CityGML files
    4234         291 :     if (EQUAL(pszDefinition, "urn:adv:crs:ETRS89_UTM32*DE_DHHN92_NH"))
    4235             :     {
    4236             :         // "ETRS89 / UTM Zone 32N + DHHN92 height"
    4237           0 :         return SetFromUserInput("EPSG:25832+5783");
    4238             :     }
    4239         291 :     else if (EQUAL(pszDefinition, "urn:adv:crs:ETRS89_UTM32*DE_DHHN2016_NH"))
    4240             :     {
    4241             :         // "ETRS89 / UTM Zone 32N + DHHN2016 height"
    4242           3 :         return SetFromUserInput("EPSG:25832+7837");
    4243             :     }
    4244             : 
    4245             :     // Used by  Japan's Fundamental Geospatial Data (FGD) GML
    4246         288 :     if (EQUAL(pszDefinition, "fguuid:jgd2001.bl"))
    4247           0 :         return importFromEPSG(4612);  // JGD2000 (slight difference in years)
    4248         288 :     else if (EQUAL(pszDefinition, "fguuid:jgd2011.bl"))
    4249           8 :         return importFromEPSG(6668);  // JGD2011
    4250         280 :     else if (EQUAL(pszDefinition, "fguuid:jgd2024.bl"))
    4251             :     {
    4252             :         // FIXME when EPSG attributes a CRS code
    4253           3 :         return importFromWkt(
    4254             :             "GEOGCRS[\"JGD2024\",\n"
    4255             :             "    DATUM[\"Japanese Geodetic Datum 2024\",\n"
    4256             :             "        ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n"
    4257             :             "            LENGTHUNIT[\"metre\",1]]],\n"
    4258             :             "    PRIMEM[\"Greenwich\",0,\n"
    4259             :             "        ANGLEUNIT[\"degree\",0.0174532925199433]],\n"
    4260             :             "    CS[ellipsoidal,2],\n"
    4261             :             "        AXIS[\"geodetic latitude (Lat)\",north,\n"
    4262             :             "            ORDER[1],\n"
    4263             :             "            ANGLEUNIT[\"degree\",0.0174532925199433]],\n"
    4264             :             "        AXIS[\"geodetic longitude (Lon)\",east,\n"
    4265             :             "            ORDER[2],\n"
    4266             :             "            ANGLEUNIT[\"degree\",0.0174532925199433]],\n"
    4267             :             "    USAGE[\n"
    4268             :             "        SCOPE[\"Horizontal component of 3D system.\"],\n"
    4269             :             "        AREA[\"Japan - onshore and offshore.\"],\n"
    4270           3 :             "        BBOX[17.09,122.38,46.05,157.65]]]");
    4271             :     }
    4272             : 
    4273             :     // Deal with IGNF:xxx, ESRI:xxx, etc from the PROJ database
    4274         277 :     const char *pszDot = strrchr(pszDefinition, ':');
    4275         277 :     if (pszDot)
    4276             :     {
    4277         125 :         CPLString osPrefix(pszDefinition, pszDot - pszDefinition);
    4278             :         auto authorities =
    4279         125 :             proj_get_authorities_from_database(d->getPROJContext());
    4280         125 :         if (authorities)
    4281             :         {
    4282         125 :             std::set<std::string> aosCandidateAuthorities;
    4283         290 :             for (auto iter = authorities; *iter; ++iter)
    4284             :             {
    4285         288 :                 if (*iter == osPrefix)
    4286             :                 {
    4287         123 :                     aosCandidateAuthorities.clear();
    4288         123 :                     aosCandidateAuthorities.insert(*iter);
    4289         123 :                     break;
    4290             :                 }
    4291             :                 // Deal with "IAU_2015" as authority in the list and input
    4292             :                 // "IAU:code"
    4293         165 :                 else if (strncmp(*iter, osPrefix.c_str(), osPrefix.size()) ==
    4294         165 :                              0 &&
    4295           0 :                          (*iter)[osPrefix.size()] == '_')
    4296             :                 {
    4297           0 :                     aosCandidateAuthorities.insert(*iter);
    4298             :                 }
    4299             :                 // Deal with "IAU_2015" as authority in the list and input
    4300             :                 // "IAU:2015:code"
    4301         330 :                 else if (osPrefix.find(':') != std::string::npos &&
    4302         165 :                          osPrefix.size() == strlen(*iter) &&
    4303         165 :                          CPLString(osPrefix).replaceAll(':', '_') == *iter)
    4304             :                 {
    4305           0 :                     aosCandidateAuthorities.clear();
    4306           0 :                     aosCandidateAuthorities.insert(*iter);
    4307           0 :                     break;
    4308             :                 }
    4309             :             }
    4310             : 
    4311         125 :             proj_string_list_destroy(authorities);
    4312             : 
    4313         125 :             if (!aosCandidateAuthorities.empty())
    4314             :             {
    4315         123 :                 auto obj = proj_create_from_database(
    4316             :                     d->getPROJContext(),
    4317         123 :                     aosCandidateAuthorities.rbegin()->c_str(), pszDot + 1,
    4318             :                     PJ_CATEGORY_CRS, false, nullptr);
    4319         123 :                 if (!obj)
    4320             :                 {
    4321          16 :                     return OGRERR_FAILURE;
    4322             :                 }
    4323         107 :                 Clear();
    4324         107 :                 d->setPjCRS(obj);
    4325         107 :                 return OGRERR_NONE;
    4326             :             }
    4327             :         }
    4328             :     }
    4329             : 
    4330             :     /* -------------------------------------------------------------------- */
    4331             :     /*      Try to open it as a file.                                       */
    4332             :     /* -------------------------------------------------------------------- */
    4333         154 :     if (!CPLTestBool(
    4334             :             CSLFetchNameValueDef(papszOptions, "ALLOW_FILE_ACCESS", "YES")))
    4335             :     {
    4336             :         VSIStatBufL sStat;
    4337          40 :         if (STARTS_WITH(pszDefinition, "/vsi") ||
    4338          20 :             VSIStatExL(pszDefinition, &sStat, VSI_STAT_EXISTS_FLAG) == 0)
    4339             :         {
    4340           0 :             CPLError(CE_Failure, CPLE_AppDefined,
    4341             :                      "Cannot import %s due to ALLOW_FILE_ACCESS=NO",
    4342             :                      pszDefinition);
    4343           0 :             return OGRERR_FAILURE;
    4344             :         }
    4345             :         // We used to silently return an error without a CE_Failure message
    4346             :         // Cf https://github.com/Toblerity/Fiona/issues/1063
    4347          20 :         return OGRERR_CORRUPT_DATA;
    4348             :     }
    4349             : 
    4350         268 :     CPLConfigOptionSetter oSetter("CPL_ALLOW_VSISTDIN", "NO", true);
    4351         134 :     VSILFILE *const fp = VSIFOpenL(pszDefinition, "rt");
    4352         134 :     if (fp == nullptr)
    4353         131 :         return OGRERR_CORRUPT_DATA;
    4354             : 
    4355           3 :     const size_t nBufMax = 100000;
    4356           3 :     char *const pszBuffer = static_cast<char *>(CPLMalloc(nBufMax));
    4357           3 :     const size_t nBytes = VSIFReadL(pszBuffer, 1, nBufMax - 1, fp);
    4358           3 :     VSIFCloseL(fp);
    4359             : 
    4360           3 :     if (nBytes == nBufMax - 1)
    4361             :     {
    4362           0 :         CPLDebug("OGR",
    4363             :                  "OGRSpatialReference::SetFromUserInput(%s), opened file "
    4364             :                  "but it is to large for our generous buffer.  Is it really "
    4365             :                  "just a WKT definition?",
    4366             :                  pszDefinition);
    4367           0 :         CPLFree(pszBuffer);
    4368           0 :         return OGRERR_FAILURE;
    4369             :     }
    4370             : 
    4371           3 :     pszBuffer[nBytes] = '\0';
    4372             : 
    4373           3 :     char *pszBufPtr = pszBuffer;
    4374           3 :     while (pszBufPtr[0] == ' ' || pszBufPtr[0] == '\n')
    4375           0 :         pszBufPtr++;
    4376             : 
    4377           3 :     OGRErr err = OGRERR_NONE;
    4378           3 :     if (pszBufPtr[0] == '<')
    4379           0 :         err = importFromXML(pszBufPtr);
    4380           3 :     else if ((strstr(pszBuffer, "+proj") != nullptr ||
    4381           3 :               strstr(pszBuffer, "+init") != nullptr) &&
    4382           0 :              (strstr(pszBuffer, "EXTENSION") == nullptr &&
    4383           0 :               strstr(pszBuffer, "extension") == nullptr))
    4384           0 :         err = importFromProj4(pszBufPtr);
    4385             :     else
    4386             :     {
    4387           3 :         if (STARTS_WITH_CI(pszBufPtr, "ESRI::"))
    4388             :         {
    4389           0 :             pszBufPtr += 6;
    4390             :         }
    4391             : 
    4392             :         // coverity[tainted_data]
    4393           3 :         err = importFromWkt(pszBufPtr);
    4394             :     }
    4395             : 
    4396           3 :     CPLFree(pszBuffer);
    4397             : 
    4398           3 :     return err;
    4399             : }
    4400             : 
    4401             : /************************************************************************/
    4402             : /*                        OSRSetFromUserInput()                         */
    4403             : /************************************************************************/
    4404             : 
    4405             : /**
    4406             :  * \brief Set spatial reference from various text formats.
    4407             :  *
    4408             :  * This function is the same as OGRSpatialReference::SetFromUserInput()
    4409             :  *
    4410             :  * \see OSRSetFromUserInputEx() for a variant allowing to pass options.
    4411             :  */
    4412         308 : OGRErr CPL_STDCALL OSRSetFromUserInput(OGRSpatialReferenceH hSRS,
    4413             :                                        const char *pszDef)
    4414             : 
    4415             : {
    4416         308 :     VALIDATE_POINTER1(hSRS, "OSRSetFromUserInput", OGRERR_FAILURE);
    4417             : 
    4418         308 :     return ToPointer(hSRS)->SetFromUserInput(pszDef);
    4419             : }
    4420             : 
    4421             : /************************************************************************/
    4422             : /*                       OSRSetFromUserInputEx()                        */
    4423             : /************************************************************************/
    4424             : 
    4425             : /**
    4426             :  * \brief Set spatial reference from various text formats.
    4427             :  *
    4428             :  * This function is the same as OGRSpatialReference::SetFromUserInput().
    4429             :  *
    4430             :  * @since GDAL 3.9
    4431             :  */
    4432        1139 : OGRErr OSRSetFromUserInputEx(OGRSpatialReferenceH hSRS, const char *pszDef,
    4433             :                              CSLConstList papszOptions)
    4434             : 
    4435             : {
    4436        1139 :     VALIDATE_POINTER1(hSRS, "OSRSetFromUserInputEx", OGRERR_FAILURE);
    4437             : 
    4438        1139 :     return ToPointer(hSRS)->SetFromUserInput(pszDef, papszOptions);
    4439             : }
    4440             : 
    4441             : /************************************************************************/
    4442             : /*                          ImportFromUrl()                             */
    4443             : /************************************************************************/
    4444             : 
    4445             : /**
    4446             :  * \brief Set spatial reference from a URL.
    4447             :  *
    4448             :  * This method will download the spatial reference at a given URL and
    4449             :  * feed it into SetFromUserInput for you.
    4450             :  *
    4451             :  * This method does the same thing as the OSRImportFromUrl() function.
    4452             :  *
    4453             :  * @param pszUrl text definition to try to deduce SRS from.
    4454             :  *
    4455             :  * @return OGRERR_NONE on success, or an error code with the curl
    4456             :  * error message if it is unable to download data.
    4457             :  */
    4458             : 
    4459           5 : OGRErr OGRSpatialReference::importFromUrl(const char *pszUrl)
    4460             : 
    4461             : {
    4462          10 :     TAKE_OPTIONAL_LOCK();
    4463             : 
    4464           5 :     if (!STARTS_WITH_CI(pszUrl, "http://") &&
    4465           3 :         !STARTS_WITH_CI(pszUrl, "https://"))
    4466             :     {
    4467           2 :         CPLError(CE_Failure, CPLE_AppDefined,
    4468             :                  "The given string is not recognized as a URL"
    4469             :                  "starting with 'http://' -- %s",
    4470             :                  pszUrl);
    4471           2 :         return OGRERR_FAILURE;
    4472             :     }
    4473             : 
    4474             :     /* -------------------------------------------------------------------- */
    4475             :     /*      Fetch the result.                                               */
    4476             :     /* -------------------------------------------------------------------- */
    4477           3 :     CPLErrorReset();
    4478             : 
    4479           6 :     std::string osUrl(pszUrl);
    4480             :     // We have historically supported "http://spatialreference.org/ref/AUTHNAME/CODE/"
    4481             :     // as a valid URL since we used a "Accept: application/x-ogcwkt" header
    4482             :     // to query WKT. To allow a static server to be used, rather append a
    4483             :     // "ogcwkt/" suffix.
    4484           2 :     for (const char *pszPrefix : {"https://spatialreference.org/ref/",
    4485           5 :                                   "http://spatialreference.org/ref/"})
    4486             :     {
    4487           5 :         if (STARTS_WITH(pszUrl, pszPrefix))
    4488             :         {
    4489             :             const CPLStringList aosTokens(
    4490           6 :                 CSLTokenizeString2(pszUrl + strlen(pszPrefix), "/", 0));
    4491           3 :             if (aosTokens.size() == 2)
    4492             :             {
    4493           2 :                 osUrl = "https://spatialreference.org/ref/";
    4494           2 :                 osUrl += aosTokens[0];  // authority
    4495           2 :                 osUrl += '/';
    4496           2 :                 osUrl += aosTokens[1];  // code
    4497           2 :                 osUrl += "/ogcwkt/";
    4498             :             }
    4499           3 :             break;
    4500             :         }
    4501             :     }
    4502             : 
    4503           3 :     const char *pszTimeout = "TIMEOUT=10";
    4504           3 :     char *apszOptions[] = {const_cast<char *>(pszTimeout), nullptr};
    4505             : 
    4506           3 :     CPLHTTPResult *psResult = CPLHTTPFetch(osUrl.c_str(), apszOptions);
    4507             : 
    4508             :     /* -------------------------------------------------------------------- */
    4509             :     /*      Try to handle errors.                                           */
    4510             :     /* -------------------------------------------------------------------- */
    4511             : 
    4512           3 :     if (psResult == nullptr)
    4513           0 :         return OGRERR_FAILURE;
    4514           6 :     if (psResult->nDataLen == 0 || CPLGetLastErrorNo() != 0 ||
    4515           3 :         psResult->pabyData == nullptr)
    4516             :     {
    4517           0 :         if (CPLGetLastErrorNo() == 0)
    4518             :         {
    4519           0 :             CPLError(CE_Failure, CPLE_AppDefined,
    4520             :                      "No data was returned from the given URL");
    4521             :         }
    4522           0 :         CPLHTTPDestroyResult(psResult);
    4523           0 :         return OGRERR_FAILURE;
    4524             :     }
    4525             : 
    4526           3 :     if (psResult->nStatus != 0)
    4527             :     {
    4528           0 :         CPLError(CE_Failure, CPLE_AppDefined, "Curl reports error: %d: %s",
    4529             :                  psResult->nStatus, psResult->pszErrBuf);
    4530           0 :         CPLHTTPDestroyResult(psResult);
    4531           0 :         return OGRERR_FAILURE;
    4532             :     }
    4533             : 
    4534           3 :     const char *pszData = reinterpret_cast<const char *>(psResult->pabyData);
    4535           3 :     if (STARTS_WITH_CI(pszData, "http://") ||
    4536           3 :         STARTS_WITH_CI(pszData, "https://"))
    4537             :     {
    4538           0 :         CPLError(CE_Failure, CPLE_AppDefined,
    4539             :                  "The data that was downloaded also starts with 'http://' "
    4540             :                  "and cannot be passed into SetFromUserInput.  Is this "
    4541             :                  "really a spatial reference definition? ");
    4542           0 :         CPLHTTPDestroyResult(psResult);
    4543           0 :         return OGRERR_FAILURE;
    4544             :     }
    4545           3 :     if (OGRERR_NONE != SetFromUserInput(pszData))
    4546             :     {
    4547           0 :         CPLHTTPDestroyResult(psResult);
    4548           0 :         return OGRERR_FAILURE;
    4549             :     }
    4550             : 
    4551           3 :     CPLHTTPDestroyResult(psResult);
    4552           3 :     return OGRERR_NONE;
    4553             : }
    4554             : 
    4555             : /************************************************************************/
    4556             : /*                        OSRimportFromUrl()                            */
    4557             : /************************************************************************/
    4558             : 
    4559             : /**
    4560             :  * \brief Set spatial reference from a URL.
    4561             :  *
    4562             :  * This function is the same as OGRSpatialReference::importFromUrl()
    4563             :  */
    4564           3 : OGRErr OSRImportFromUrl(OGRSpatialReferenceH hSRS, const char *pszUrl)
    4565             : 
    4566             : {
    4567           3 :     VALIDATE_POINTER1(hSRS, "OSRImportFromUrl", OGRERR_FAILURE);
    4568             : 
    4569           3 :     return ToPointer(hSRS)->importFromUrl(pszUrl);
    4570             : }
    4571             : 
    4572             : /************************************************************************/
    4573             : /*                         importFromURNPart()                          */
    4574             : /************************************************************************/
    4575        5526 : OGRErr OGRSpatialReference::importFromURNPart(const char *pszAuthority,
    4576             :                                               const char *pszCode,
    4577             :                                               const char *pszURN)
    4578             : {
    4579             : #if PROJ_AT_LEAST_VERSION(8, 1, 0)
    4580             :     (void)this;
    4581             :     (void)pszAuthority;
    4582             :     (void)pszCode;
    4583             :     (void)pszURN;
    4584             :     return OGRERR_FAILURE;
    4585             : #else
    4586             :     /* -------------------------------------------------------------------- */
    4587             :     /*      Is this an EPSG code? Note that we import it with EPSG          */
    4588             :     /*      preferred axis ordering for geographic coordinate systems.      */
    4589             :     /* -------------------------------------------------------------------- */
    4590        5526 :     if (STARTS_WITH_CI(pszAuthority, "EPSG"))
    4591        4968 :         return importFromEPSGA(atoi(pszCode));
    4592             : 
    4593             :     /* -------------------------------------------------------------------- */
    4594             :     /*      Is this an IAU code?  Lets try for the IAU2000 dictionary.      */
    4595             :     /* -------------------------------------------------------------------- */
    4596         558 :     if (STARTS_WITH_CI(pszAuthority, "IAU"))
    4597           0 :         return importFromDict("IAU2000.wkt", pszCode);
    4598             : 
    4599             :     /* -------------------------------------------------------------------- */
    4600             :     /*      Is this an OGC code?                                            */
    4601             :     /* -------------------------------------------------------------------- */
    4602         558 :     if (!STARTS_WITH_CI(pszAuthority, "OGC"))
    4603             :     {
    4604           1 :         CPLError(CE_Failure, CPLE_AppDefined,
    4605             :                  "URN %s has unrecognized authority.", pszURN);
    4606           1 :         return OGRERR_FAILURE;
    4607             :     }
    4608             : 
    4609         557 :     if (STARTS_WITH_CI(pszCode, "CRS84"))
    4610         545 :         return SetWellKnownGeogCS(pszCode);
    4611          12 :     else if (STARTS_WITH_CI(pszCode, "CRS83"))
    4612           0 :         return SetWellKnownGeogCS(pszCode);
    4613          12 :     else if (STARTS_WITH_CI(pszCode, "CRS27"))
    4614           0 :         return SetWellKnownGeogCS(pszCode);
    4615          12 :     else if (STARTS_WITH_CI(pszCode, "84"))  // urn:ogc:def:crs:OGC:2:84
    4616          10 :         return SetWellKnownGeogCS("CRS84");
    4617             : 
    4618             :     /* -------------------------------------------------------------------- */
    4619             :     /*      Handle auto codes.  We need to convert from format              */
    4620             :     /*      AUTO42001:99:8888 to format AUTO:42001,99,8888.                 */
    4621             :     /* -------------------------------------------------------------------- */
    4622           2 :     else if (STARTS_WITH_CI(pszCode, "AUTO"))
    4623             :     {
    4624           2 :         char szWMSAuto[100] = {'\0'};
    4625             : 
    4626           2 :         if (strlen(pszCode) > sizeof(szWMSAuto) - 2)
    4627           0 :             return OGRERR_FAILURE;
    4628             : 
    4629           2 :         snprintf(szWMSAuto, sizeof(szWMSAuto), "AUTO:%s", pszCode + 4);
    4630          28 :         for (int i = 5; szWMSAuto[i] != '\0'; i++)
    4631             :         {
    4632          26 :             if (szWMSAuto[i] == ':')
    4633           4 :                 szWMSAuto[i] = ',';
    4634             :         }
    4635             : 
    4636           2 :         return importFromWMSAUTO(szWMSAuto);
    4637             :     }
    4638             : 
    4639             :     /* -------------------------------------------------------------------- */
    4640             :     /*      Not a recognise OGC item.                                       */
    4641             :     /* -------------------------------------------------------------------- */
    4642           0 :     CPLError(CE_Failure, CPLE_AppDefined, "URN %s value not supported.",
    4643             :              pszURN);
    4644             : 
    4645           0 :     return OGRERR_FAILURE;
    4646             : #endif
    4647             : }
    4648             : 
    4649             : /************************************************************************/
    4650             : /*                           importFromURN()                            */
    4651             : /*                                                                      */
    4652             : /*      See OGC recommendation paper 06-023r1 or later for details.     */
    4653             : /************************************************************************/
    4654             : 
    4655             : /**
    4656             :  * \brief Initialize from OGC URN.
    4657             :  *
    4658             :  * Initializes this spatial reference from a coordinate system defined
    4659             :  * by an OGC URN prefixed with "urn:ogc:def:crs:" per recommendation
    4660             :  * paper 06-023r1.  Currently EPSG and OGC authority values are supported,
    4661             :  * including OGC auto codes, but not including CRS1 or CRS88 (NAVD88).
    4662             :  *
    4663             :  * This method is also support through SetFromUserInput() which can
    4664             :  * normally be used for URNs.
    4665             :  *
    4666             :  * @param pszURN the urn string.
    4667             :  *
    4668             :  * @return OGRERR_NONE on success or an error code.
    4669             :  */
    4670             : 
    4671         838 : OGRErr OGRSpatialReference::importFromURN(const char *pszURN)
    4672             : 
    4673             : {
    4674         838 :     constexpr const char *EPSG_URN_CRS_PREFIX = "urn:ogc:def:crs:EPSG::";
    4675        1591 :     if (STARTS_WITH(pszURN, EPSG_URN_CRS_PREFIX) &&
    4676         753 :         CPLGetValueType(pszURN + strlen(EPSG_URN_CRS_PREFIX)) ==
    4677             :             CPL_VALUE_INTEGER)
    4678             :     {
    4679         750 :         return importFromEPSG(atoi(pszURN + strlen(EPSG_URN_CRS_PREFIX)));
    4680             :     }
    4681             : 
    4682         176 :     TAKE_OPTIONAL_LOCK();
    4683             : 
    4684             : #if PROJ_AT_LEAST_VERSION(8, 1, 0)
    4685             : 
    4686             :     // PROJ 8.2.0 has support for IAU codes now.
    4687             : #if !PROJ_AT_LEAST_VERSION(8, 2, 0)
    4688             :     /* -------------------------------------------------------------------- */
    4689             :     /*      Is this an IAU code?  Lets try for the IAU2000 dictionary.      */
    4690             :     /* -------------------------------------------------------------------- */
    4691             :     const char *pszIAU = strstr(pszURN, "IAU");
    4692             :     if (pszIAU)
    4693             :     {
    4694             :         const char *pszCode = strchr(pszIAU, ':');
    4695             :         if (pszCode)
    4696             :         {
    4697             :             ++pszCode;
    4698             :             if (*pszCode == ':')
    4699             :                 ++pszCode;
    4700             :             return importFromDict("IAU2000.wkt", pszCode);
    4701             :         }
    4702             :     }
    4703             : #endif
    4704             : 
    4705             :     if (strlen(pszURN) >= 1000)
    4706             :     {
    4707             :         CPLError(CE_Failure, CPLE_AppDefined, "Too long input string");
    4708             :         return OGRERR_CORRUPT_DATA;
    4709             :     }
    4710             :     auto obj = proj_create(d->getPROJContext(), pszURN);
    4711             :     if (!obj)
    4712             :     {
    4713             :         return OGRERR_FAILURE;
    4714             :     }
    4715             :     Clear();
    4716             :     d->setPjCRS(obj);
    4717             :     return OGRERR_NONE;
    4718             : #else
    4719          88 :     const char *pszCur = nullptr;
    4720             : 
    4721          88 :     if (STARTS_WITH_CI(pszURN, "urn:ogc:def:crs:"))
    4722          23 :         pszCur = pszURN + 16;
    4723          65 :     else if (STARTS_WITH_CI(pszURN, "urn:ogc:def:crs,crs:"))
    4724           1 :         pszCur = pszURN + 20;
    4725          64 :     else if (STARTS_WITH_CI(pszURN, "urn:x-ogc:def:crs:"))
    4726          62 :         pszCur = pszURN + 18;
    4727           2 :     else if (STARTS_WITH_CI(pszURN, "urn:opengis:crs:"))
    4728           0 :         pszCur = pszURN + 16;
    4729           2 :     else if (STARTS_WITH_CI(pszURN, "urn:opengis:def:crs:"))
    4730           0 :         pszCur = pszURN + 20;
    4731             :     else
    4732             :     {
    4733           2 :         CPLError(CE_Failure, CPLE_AppDefined, "URN %s not a supported format.",
    4734             :                  pszURN);
    4735           2 :         return OGRERR_FAILURE;
    4736             :     }
    4737             : 
    4738             :     /* -------------------------------------------------------------------- */
    4739             :     /*      Clear any existing definition.                                  */
    4740             :     /* -------------------------------------------------------------------- */
    4741          86 :     Clear();
    4742             : 
    4743             :     /* -------------------------------------------------------------------- */
    4744             :     /*      Find code (ignoring version) out of string like:                */
    4745             :     /*                                                                      */
    4746             :     /*      authority:[version]:code                                        */
    4747             :     /* -------------------------------------------------------------------- */
    4748          86 :     const char *pszAuthority = pszCur;
    4749             : 
    4750             :     // skip authority
    4751         414 :     while (*pszCur != ':' && *pszCur)
    4752         328 :         pszCur++;
    4753          86 :     if (*pszCur == ':')
    4754          86 :         pszCur++;
    4755             : 
    4756             :     // skip version
    4757          86 :     const char *pszBeforeVersion = pszCur;
    4758         387 :     while (*pszCur != ':' && *pszCur)
    4759         301 :         pszCur++;
    4760          86 :     if (*pszCur == ':')
    4761          58 :         pszCur++;
    4762             :     else
    4763             :         // We come here in the case, the content to parse is authority:code
    4764             :         // (instead of authority::code) which is probably illegal according to
    4765             :         // http://www.opengeospatial.org/ogcUrnPolicy but such content is found
    4766             :         // for example in what is returned by GeoServer.
    4767          28 :         pszCur = pszBeforeVersion;
    4768             : 
    4769          86 :     const char *pszCode = pszCur;
    4770             : 
    4771          86 :     const char *pszComma = strchr(pszCur, ',');
    4772          86 :     if (pszComma == nullptr)
    4773          85 :         return importFromURNPart(pszAuthority, pszCode, pszURN);
    4774             : 
    4775             :     // There's a second part with the vertical SRS.
    4776           1 :     pszCur = pszComma + 1;
    4777           1 :     if (!STARTS_WITH(pszCur, "crs:"))
    4778             :     {
    4779           0 :         CPLError(CE_Failure, CPLE_AppDefined, "URN %s not a supported format.",
    4780             :                  pszURN);
    4781           0 :         return OGRERR_FAILURE;
    4782             :     }
    4783             : 
    4784           1 :     pszCur += 4;
    4785             : 
    4786           1 :     char *pszFirstCode = CPLStrdup(pszCode);
    4787           1 :     pszFirstCode[pszComma - pszCode] = '\0';
    4788           1 :     OGRErr eStatus = importFromURNPart(pszAuthority, pszFirstCode, pszURN);
    4789           1 :     CPLFree(pszFirstCode);
    4790             : 
    4791             :     // Do we want to turn this into a compound definition
    4792             :     // with a vertical datum?
    4793           1 :     if (eStatus != OGRERR_NONE)
    4794           0 :         return eStatus;
    4795             : 
    4796             :     /* -------------------------------------------------------------------- */
    4797             :     /*      Find code (ignoring version) out of string like:                */
    4798             :     /*                                                                      */
    4799             :     /*      authority:[version]:code                                        */
    4800             :     /* -------------------------------------------------------------------- */
    4801           1 :     pszAuthority = pszCur;
    4802             : 
    4803             :     // skip authority
    4804           5 :     while (*pszCur != ':' && *pszCur)
    4805           4 :         pszCur++;
    4806           1 :     if (*pszCur == ':')
    4807           1 :         pszCur++;
    4808             : 
    4809             :     // skip version
    4810           1 :     pszBeforeVersion = pszCur;
    4811           1 :     while (*pszCur != ':' && *pszCur)
    4812           0 :         pszCur++;
    4813           1 :     if (*pszCur == ':')
    4814           1 :         pszCur++;
    4815             :     else
    4816           0 :         pszCur = pszBeforeVersion;
    4817             : 
    4818           1 :     pszCode = pszCur;
    4819             : 
    4820           2 :     OGRSpatialReference oVertSRS;
    4821           1 :     eStatus = oVertSRS.importFromURNPart(pszAuthority, pszCode, pszURN);
    4822           1 :     if (eStatus == OGRERR_NONE)
    4823             :     {
    4824           1 :         OGRSpatialReference oHorizSRS(*this);
    4825             : 
    4826           1 :         Clear();
    4827             : 
    4828           1 :         oHorizSRS.d->refreshProjObj();
    4829           1 :         oVertSRS.d->refreshProjObj();
    4830           1 :         if (!oHorizSRS.d->m_pj_crs || !oVertSRS.d->m_pj_crs)
    4831           0 :             return OGRERR_FAILURE;
    4832             : 
    4833           1 :         const char *pszHorizName = proj_get_name(oHorizSRS.d->m_pj_crs);
    4834           1 :         const char *pszVertName = proj_get_name(oVertSRS.d->m_pj_crs);
    4835             : 
    4836           2 :         CPLString osName = pszHorizName ? pszHorizName : "";
    4837           1 :         osName += " + ";
    4838           1 :         osName += pszVertName ? pszVertName : "";
    4839             : 
    4840           1 :         SetCompoundCS(osName, &oHorizSRS, &oVertSRS);
    4841             :     }
    4842             : 
    4843           1 :     return eStatus;
    4844             : #endif
    4845             : }
    4846             : 
    4847             : /************************************************************************/
    4848             : /*                           importFromCRSURL()                         */
    4849             : /*                                                                      */
    4850             : /*      See OGC Best Practice document 11-135 for details.              */
    4851             : /************************************************************************/
    4852             : 
    4853             : /**
    4854             :  * \brief Initialize from OGC URL.
    4855             :  *
    4856             :  * Initializes this spatial reference from a coordinate system defined
    4857             :  * by an OGC URL prefixed with "http://opengis.net/def/crs" per best practice
    4858             :  * paper 11-135.  Currently EPSG and OGC authority values are supported,
    4859             :  * including OGC auto codes, but not including CRS1 or CRS88 (NAVD88).
    4860             :  *
    4861             :  * This method is also supported through SetFromUserInput() which can
    4862             :  * normally be used for URLs.
    4863             :  *
    4864             :  * @param pszURL the URL string.
    4865             :  *
    4866             :  * @return OGRERR_NONE on success or an error code.
    4867             :  */
    4868             : 
    4869        5452 : OGRErr OGRSpatialReference::importFromCRSURL(const char *pszURL)
    4870             : 
    4871             : {
    4872       10904 :     TAKE_OPTIONAL_LOCK();
    4873             : 
    4874             : #if !PROJ_AT_LEAST_VERSION(9, 1, 0)
    4875        5452 :     if (strcmp(pszURL, "http://www.opengis.net/def/crs/OGC/0/CRS84h") == 0)
    4876             :     {
    4877          12 :         PJ *obj = proj_create(
    4878             :             d->getPROJContext(),
    4879             :             "GEOGCRS[\"WGS 84 longitude-latitude-height\",\n"
    4880             :             "    ENSEMBLE[\"World Geodetic System 1984 ensemble\",\n"
    4881             :             "        MEMBER[\"World Geodetic System 1984 (Transit)\"],\n"
    4882             :             "        MEMBER[\"World Geodetic System 1984 (G730)\"],\n"
    4883             :             "        MEMBER[\"World Geodetic System 1984 (G873)\"],\n"
    4884             :             "        MEMBER[\"World Geodetic System 1984 (G1150)\"],\n"
    4885             :             "        MEMBER[\"World Geodetic System 1984 (G1674)\"],\n"
    4886             :             "        MEMBER[\"World Geodetic System 1984 (G1762)\"],\n"
    4887             :             "        MEMBER[\"World Geodetic System 1984 (G2139)\"],\n"
    4888             :             "        MEMBER[\"World Geodetic System 1984 (G2296)\"],\n"
    4889             :             "        ELLIPSOID[\"WGS 84\",6378137,298.257223563,\n"
    4890             :             "            LENGTHUNIT[\"metre\",1]],\n"
    4891             :             "        ENSEMBLEACCURACY[2.0]],\n"
    4892             :             "    PRIMEM[\"Greenwich\",0,\n"
    4893             :             "        ANGLEUNIT[\"degree\",0.0174532925199433]],\n"
    4894             :             "    CS[ellipsoidal,3],\n"
    4895             :             "        AXIS[\"geodetic longitude (Lon)\",east,\n"
    4896             :             "            ORDER[1],\n"
    4897             :             "            ANGLEUNIT[\"degree\",0.0174532925199433]],\n"
    4898             :             "        AXIS[\"geodetic latitude (Lat)\",north,\n"
    4899             :             "            ORDER[2],\n"
    4900             :             "            ANGLEUNIT[\"degree\",0.0174532925199433]],\n"
    4901             :             "        AXIS[\"ellipsoidal height (h)\",up,\n"
    4902             :             "            ORDER[3],\n"
    4903             :             "            LENGTHUNIT[\"metre\",1]],\n"
    4904             :             "    USAGE[\n"
    4905             :             "        SCOPE[\"3D system frequently used in GIS, Web APIs and "
    4906             :             "Web applications\"],\n"
    4907             :             "        AREA[\"World.\"],\n"
    4908             :             "        BBOX[-90,-180,90,180]],\n"
    4909             :             "    ID[\"OGC\",\"CRS84h\"]]");
    4910          12 :         if (!obj)
    4911             :         {
    4912           0 :             return OGRERR_FAILURE;
    4913             :         }
    4914          12 :         Clear();
    4915          12 :         d->setPjCRS(obj);
    4916          12 :         return OGRERR_NONE;
    4917             :     }
    4918             : #endif
    4919             : 
    4920             : #if PROJ_AT_LEAST_VERSION(8, 1, 0)
    4921             :     if (strlen(pszURL) >= 10000)
    4922             :     {
    4923             :         CPLError(CE_Failure, CPLE_AppDefined, "Too long input string");
    4924             :         return OGRERR_CORRUPT_DATA;
    4925             :     }
    4926             : 
    4927             :     PJ *obj;
    4928             : #if !PROJ_AT_LEAST_VERSION(9, 2, 0)
    4929             :     if (STARTS_WITH(pszURL, "http://www.opengis.net/def/crs/IAU/0/"))
    4930             :     {
    4931             :         obj = proj_create(
    4932             :             d->getPROJContext(),
    4933             :             CPLSPrintf("IAU:%s",
    4934             :                        pszURL +
    4935             :                            strlen("http://www.opengis.net/def/crs/IAU/0/")));
    4936             :     }
    4937             :     else
    4938             : #endif
    4939             :     {
    4940             :         obj = proj_create(d->getPROJContext(), pszURL);
    4941             :     }
    4942             :     if (!obj)
    4943             :     {
    4944             :         return OGRERR_FAILURE;
    4945             :     }
    4946             :     Clear();
    4947             :     d->setPjCRS(obj);
    4948             :     return OGRERR_NONE;
    4949             : #else
    4950        5440 :     const char *pszCur = nullptr;
    4951             : 
    4952        5440 :     if (STARTS_WITH_CI(pszURL, "http://opengis.net/def/crs"))
    4953           2 :         pszCur = pszURL + 26;
    4954        5438 :     else if (STARTS_WITH_CI(pszURL, "https://opengis.net/def/crs"))
    4955           1 :         pszCur = pszURL + 27;
    4956        5437 :     else if (STARTS_WITH_CI(pszURL, "http://www.opengis.net/def/crs"))
    4957        5436 :         pszCur = pszURL + 30;
    4958           1 :     else if (STARTS_WITH_CI(pszURL, "https://www.opengis.net/def/crs"))
    4959           1 :         pszCur = pszURL + 31;
    4960           0 :     else if (STARTS_WITH_CI(pszURL, "www.opengis.net/def/crs"))
    4961           0 :         pszCur = pszURL + 23;
    4962             :     else
    4963             :     {
    4964           0 :         CPLError(CE_Failure, CPLE_AppDefined, "URL %s not a supported format.",
    4965             :                  pszURL);
    4966           0 :         return OGRERR_FAILURE;
    4967             :     }
    4968             : 
    4969        5440 :     if (*pszCur == '\0')
    4970             :     {
    4971           0 :         CPLError(CE_Failure, CPLE_AppDefined, "URL %s malformed.", pszURL);
    4972           0 :         return OGRERR_FAILURE;
    4973             :     }
    4974             : 
    4975             :     /* -------------------------------------------------------------------- */
    4976             :     /*      Clear any existing definition.                                  */
    4977             :     /* -------------------------------------------------------------------- */
    4978        5440 :     Clear();
    4979             : 
    4980        5440 :     if (STARTS_WITH_CI(pszCur, "-compound?1="))
    4981             :     {
    4982             :         /* --------------------------------------------------------------------
    4983             :          */
    4984             :         /*      It's a compound CRS, of the form: */
    4985             :         /*                                                                      */
    4986             :         /*      http://opengis.net/def/crs-compound?1=URL1&2=URL2&3=URL3&.. */
    4987             :         /* --------------------------------------------------------------------
    4988             :          */
    4989           1 :         pszCur += 12;
    4990             : 
    4991             :         // Extract each component CRS URL.
    4992           1 :         int iComponentUrl = 2;
    4993             : 
    4994           2 :         CPLString osName = "";
    4995           1 :         Clear();
    4996             : 
    4997           3 :         while (iComponentUrl != -1)
    4998             :         {
    4999           2 :             char searchStr[15] = {};
    5000           2 :             snprintf(searchStr, sizeof(searchStr), "&%d=", iComponentUrl);
    5001             : 
    5002           2 :             const char *pszUrlEnd = strstr(pszCur, searchStr);
    5003             : 
    5004             :             // Figure out the next component URL.
    5005           2 :             char *pszComponentUrl = nullptr;
    5006             : 
    5007           2 :             if (pszUrlEnd)
    5008             :             {
    5009           1 :                 size_t nLen = pszUrlEnd - pszCur;
    5010           1 :                 pszComponentUrl = static_cast<char *>(CPLMalloc(nLen + 1));
    5011           1 :                 strncpy(pszComponentUrl, pszCur, nLen);
    5012           1 :                 pszComponentUrl[nLen] = '\0';
    5013             : 
    5014           1 :                 ++iComponentUrl;
    5015           1 :                 pszCur += nLen + strlen(searchStr);
    5016             :             }
    5017             :             else
    5018             :             {
    5019           1 :                 if (iComponentUrl == 2)
    5020             :                 {
    5021           0 :                     CPLError(CE_Failure, CPLE_AppDefined,
    5022             :                              "Compound CRS URLs must have at least two "
    5023             :                              "component CRSs.");
    5024           0 :                     return OGRERR_FAILURE;
    5025             :                 }
    5026             :                 else
    5027             :                 {
    5028           1 :                     pszComponentUrl = CPLStrdup(pszCur);
    5029             :                     // no more components
    5030           1 :                     iComponentUrl = -1;
    5031             :                 }
    5032             :             }
    5033             : 
    5034           2 :             OGRSpatialReference oComponentSRS;
    5035           2 :             OGRErr eStatus = oComponentSRS.importFromCRSURL(pszComponentUrl);
    5036             : 
    5037           2 :             CPLFree(pszComponentUrl);
    5038           2 :             pszComponentUrl = nullptr;
    5039             : 
    5040           2 :             if (eStatus == OGRERR_NONE)
    5041             :             {
    5042           2 :                 if (osName.length() != 0)
    5043             :                 {
    5044           1 :                     osName += " + ";
    5045             :                 }
    5046           2 :                 osName += oComponentSRS.GetRoot()->GetValue();
    5047           2 :                 SetNode("COMPD_CS", osName);
    5048           2 :                 GetRoot()->AddChild(oComponentSRS.GetRoot()->Clone());
    5049             :             }
    5050             :             else
    5051           0 :                 return eStatus;
    5052             :         }
    5053             : 
    5054           1 :         return OGRERR_NONE;
    5055             :     }
    5056             : 
    5057             :     /* -------------------------------------------------------------------- */
    5058             :     /*      It's a normal CRS URL, of the form:                             */
    5059             :     /*                                                                      */
    5060             :     /*      http://opengis.net/def/crs/AUTHORITY/VERSION/CODE               */
    5061             :     /* -------------------------------------------------------------------- */
    5062        5439 :     ++pszCur;
    5063        5439 :     const char *pszAuthority = pszCur;
    5064             : 
    5065             :     // skip authority
    5066      126650 :     while (*pszCur != '/' && *pszCur)
    5067      121211 :         pszCur++;
    5068        5439 :     if (*pszCur == '/')
    5069        5438 :         pszCur++;
    5070             : 
    5071             :     // skip version
    5072       11931 :     while (*pszCur != '/' && *pszCur)
    5073        6492 :         pszCur++;
    5074        5439 :     if (*pszCur == '/')
    5075        5438 :         pszCur++;
    5076             : 
    5077        5439 :     const char *pszCode = pszCur;
    5078             : 
    5079        5439 :     return importFromURNPart(pszAuthority, pszCode, pszURL);
    5080             : #endif
    5081             : }
    5082             : 
    5083             : /************************************************************************/
    5084             : /*                         importFromWMSAUTO()                          */
    5085             : /************************************************************************/
    5086             : 
    5087             : /**
    5088             :  * \brief Initialize from WMSAUTO string.
    5089             :  *
    5090             :  * Note that the WMS 1.3 specification does not include the
    5091             :  * units code, while apparently earlier specs do.  We try to
    5092             :  * guess around this.
    5093             :  *
    5094             :  * @param pszDefinition the WMSAUTO string
    5095             :  *
    5096             :  * @return OGRERR_NONE on success or an error code.
    5097             :  */
    5098           3 : OGRErr OGRSpatialReference::importFromWMSAUTO(const char *pszDefinition)
    5099             : 
    5100             : {
    5101           6 :     TAKE_OPTIONAL_LOCK();
    5102             : 
    5103             : #if PROJ_AT_LEAST_VERSION(8, 1, 0)
    5104             :     if (strlen(pszDefinition) >= 10000)
    5105             :     {
    5106             :         CPLError(CE_Failure, CPLE_AppDefined, "Too long input string");
    5107             :         return OGRERR_CORRUPT_DATA;
    5108             :     }
    5109             : 
    5110             :     auto obj = proj_create(d->getPROJContext(), pszDefinition);
    5111             :     if (!obj)
    5112             :     {
    5113             :         return OGRERR_FAILURE;
    5114             :     }
    5115             :     Clear();
    5116             :     d->setPjCRS(obj);
    5117             :     return OGRERR_NONE;
    5118             : #else
    5119             :     int nProjId, nUnitsId;
    5120           3 :     double dfRefLong, dfRefLat = 0.0;
    5121             : 
    5122             :     /* -------------------------------------------------------------------- */
    5123             :     /*      Tokenize                                                        */
    5124             :     /* -------------------------------------------------------------------- */
    5125           3 :     if (STARTS_WITH_CI(pszDefinition, "AUTO:"))
    5126           3 :         pszDefinition += 5;
    5127             : 
    5128             :     char **papszTokens =
    5129           3 :         CSLTokenizeStringComplex(pszDefinition, ",", FALSE, TRUE);
    5130             : 
    5131           3 :     if (CSLCount(papszTokens) == 4)
    5132             :     {
    5133           0 :         nProjId = atoi(papszTokens[0]);
    5134           0 :         nUnitsId = atoi(papszTokens[1]);
    5135           0 :         dfRefLong = CPLAtof(papszTokens[2]);
    5136           0 :         dfRefLat = CPLAtof(papszTokens[3]);
    5137             :     }
    5138           3 :     else if (CSLCount(papszTokens) == 3 && atoi(papszTokens[0]) == 42005)
    5139             :     {
    5140           0 :         nProjId = atoi(papszTokens[0]);
    5141           0 :         nUnitsId = atoi(papszTokens[1]);
    5142           0 :         dfRefLong = CPLAtof(papszTokens[2]);
    5143           0 :         dfRefLat = 0.0;
    5144             :     }
    5145           3 :     else if (CSLCount(papszTokens) == 3)
    5146             :     {
    5147           2 :         nProjId = atoi(papszTokens[0]);
    5148           2 :         nUnitsId = 9001;
    5149           2 :         dfRefLong = CPLAtof(papszTokens[1]);
    5150           2 :         dfRefLat = CPLAtof(papszTokens[2]);
    5151             :     }
    5152           1 :     else if (CSLCount(papszTokens) == 2 && atoi(papszTokens[0]) == 42005)
    5153             :     {
    5154           0 :         nProjId = atoi(papszTokens[0]);
    5155           0 :         nUnitsId = 9001;
    5156           0 :         dfRefLong = CPLAtof(papszTokens[1]);
    5157             :     }
    5158             :     else
    5159             :     {
    5160           1 :         CSLDestroy(papszTokens);
    5161           1 :         CPLError(CE_Failure, CPLE_AppDefined,
    5162             :                  "AUTO projection has wrong number of arguments, expected\n"
    5163             :                  "AUTO:proj_id,units_id,ref_long,ref_lat or"
    5164             :                  "AUTO:proj_id,ref_long,ref_lat");
    5165           1 :         return OGRERR_FAILURE;
    5166             :     }
    5167             : 
    5168           2 :     CSLDestroy(papszTokens);
    5169           2 :     papszTokens = nullptr;
    5170             : 
    5171             :     /* -------------------------------------------------------------------- */
    5172             :     /*      Build coordsys.                                                 */
    5173             :     /* -------------------------------------------------------------------- */
    5174           2 :     Clear();
    5175             : 
    5176             :     /* -------------------------------------------------------------------- */
    5177             :     /*      Set WGS84.                                                      */
    5178             :     /* -------------------------------------------------------------------- */
    5179           2 :     SetWellKnownGeogCS("WGS84");
    5180             : 
    5181           2 :     switch (nProjId)
    5182             :     {
    5183           2 :         case 42001:  // Auto UTM
    5184           2 :             SetUTM(static_cast<int>(floor((dfRefLong + 180.0) / 6.0)) + 1,
    5185             :                    dfRefLat >= 0.0);
    5186           2 :             break;
    5187             : 
    5188           0 :         case 42002:  // Auto TM (strangely very UTM-like).
    5189           0 :             SetTM(0, dfRefLong, 0.9996, 500000.0,
    5190             :                   (dfRefLat >= 0.0) ? 0.0 : 10000000.0);
    5191           0 :             break;
    5192             : 
    5193           0 :         case 42003:  // Auto Orthographic.
    5194           0 :             SetOrthographic(dfRefLat, dfRefLong, 0.0, 0.0);
    5195           0 :             break;
    5196             : 
    5197           0 :         case 42004:  // Auto Equirectangular
    5198           0 :             SetEquirectangular(dfRefLat, dfRefLong, 0.0, 0.0);
    5199           0 :             break;
    5200             : 
    5201           0 :         case 42005:
    5202           0 :             SetMollweide(dfRefLong, 0.0, 0.0);
    5203           0 :             break;
    5204             : 
    5205           0 :         default:
    5206           0 :             CPLError(CE_Failure, CPLE_AppDefined,
    5207             :                      "Unsupported projection id in importFromWMSAUTO(): %d",
    5208             :                      nProjId);
    5209           0 :             return OGRERR_FAILURE;
    5210             :     }
    5211             : 
    5212             :     /* -------------------------------------------------------------------- */
    5213             :     /*      Set units.                                                      */
    5214             :     /* -------------------------------------------------------------------- */
    5215             : 
    5216           2 :     switch (nUnitsId)
    5217             :     {
    5218           2 :         case 9001:
    5219           2 :             SetTargetLinearUnits(nullptr, SRS_UL_METER, 1.0, "EPSG", "9001");
    5220           2 :             break;
    5221             : 
    5222           0 :         case 9002:
    5223           0 :             SetTargetLinearUnits(nullptr, "Foot", 0.3048, "EPSG", "9002");
    5224           0 :             break;
    5225             : 
    5226           0 :         case 9003:
    5227           0 :             SetTargetLinearUnits(nullptr, "US survey foot",
    5228             :                                  CPLAtof(SRS_UL_US_FOOT_CONV), "EPSG", "9003");
    5229           0 :             break;
    5230             : 
    5231           0 :         default:
    5232           0 :             CPLError(CE_Failure, CPLE_AppDefined,
    5233             :                      "Unsupported units code (%d).", nUnitsId);
    5234           0 :             return OGRERR_FAILURE;
    5235             :             break;
    5236             :     }
    5237             : 
    5238           2 :     return OGRERR_NONE;
    5239             : #endif
    5240             : }
    5241             : 
    5242             : /************************************************************************/
    5243             : /*                            GetSemiMajor()                            */
    5244             : /************************************************************************/
    5245             : 
    5246             : /**
    5247             :  * \brief Get spheroid semi major axis (in metres starting with GDAL 3.0)
    5248             :  *
    5249             :  * This method does the same thing as the C function OSRGetSemiMajor().
    5250             :  *
    5251             :  * @param pnErr if non-NULL set to OGRERR_FAILURE if semi major axis
    5252             :  * can be found.
    5253             :  *
    5254             :  * @return semi-major axis, or SRS_WGS84_SEMIMAJOR if it can't be found.
    5255             :  */
    5256             : 
    5257        6769 : double OGRSpatialReference::GetSemiMajor(OGRErr *pnErr) const
    5258             : 
    5259             : {
    5260       13538 :     TAKE_OPTIONAL_LOCK();
    5261             : 
    5262        6769 :     if (pnErr != nullptr)
    5263        3497 :         *pnErr = OGRERR_FAILURE;
    5264             : 
    5265        6769 :     d->refreshProjObj();
    5266        6769 :     if (!d->m_pj_crs)
    5267         111 :         return SRS_WGS84_SEMIMAJOR;
    5268             : 
    5269        6658 :     auto ellps = proj_get_ellipsoid(d->getPROJContext(), d->m_pj_crs);
    5270        6658 :     if (!ellps)
    5271           5 :         return SRS_WGS84_SEMIMAJOR;
    5272             : 
    5273        6653 :     double dfSemiMajor = 0.0;
    5274        6653 :     proj_ellipsoid_get_parameters(d->getPROJContext(), ellps, &dfSemiMajor,
    5275             :                                   nullptr, nullptr, nullptr);
    5276        6653 :     proj_destroy(ellps);
    5277             : 
    5278        6653 :     if (dfSemiMajor > 0)
    5279             :     {
    5280        6653 :         if (pnErr != nullptr)
    5281        3383 :             *pnErr = OGRERR_NONE;
    5282        6653 :         return dfSemiMajor;
    5283             :     }
    5284             : 
    5285           0 :     return SRS_WGS84_SEMIMAJOR;
    5286             : }
    5287             : 
    5288             : /************************************************************************/
    5289             : /*                          OSRGetSemiMajor()                           */
    5290             : /************************************************************************/
    5291             : 
    5292             : /**
    5293             :  * \brief Get spheroid semi major axis.
    5294             :  *
    5295             :  * This function is the same as OGRSpatialReference::GetSemiMajor()
    5296             :  */
    5297          84 : double OSRGetSemiMajor(OGRSpatialReferenceH hSRS, OGRErr *pnErr)
    5298             : 
    5299             : {
    5300          84 :     VALIDATE_POINTER1(hSRS, "OSRGetSemiMajor", 0);
    5301             : 
    5302          84 :     return ToPointer(hSRS)->GetSemiMajor(pnErr);
    5303             : }
    5304             : 
    5305             : /************************************************************************/
    5306             : /*                          GetInvFlattening()                          */
    5307             : /************************************************************************/
    5308             : 
    5309             : /**
    5310             :  * \brief Get spheroid inverse flattening.
    5311             :  *
    5312             :  * This method does the same thing as the C function OSRGetInvFlattening().
    5313             :  *
    5314             :  * @param pnErr if non-NULL set to OGRERR_FAILURE if no inverse flattening
    5315             :  * can be found.
    5316             :  *
    5317             :  * @return inverse flattening, or SRS_WGS84_INVFLATTENING if it can't be found.
    5318             :  */
    5319             : 
    5320        4466 : double OGRSpatialReference::GetInvFlattening(OGRErr *pnErr) const
    5321             : 
    5322             : {
    5323        8932 :     TAKE_OPTIONAL_LOCK();
    5324             : 
    5325        4466 :     if (pnErr != nullptr)
    5326        3394 :         *pnErr = OGRERR_FAILURE;
    5327             : 
    5328        4466 :     d->refreshProjObj();
    5329        4466 :     if (!d->m_pj_crs)
    5330         111 :         return SRS_WGS84_INVFLATTENING;
    5331             : 
    5332        4355 :     auto ellps = proj_get_ellipsoid(d->getPROJContext(), d->m_pj_crs);
    5333        4355 :     if (!ellps)
    5334           2 :         return SRS_WGS84_INVFLATTENING;
    5335             : 
    5336        4353 :     double dfInvFlattening = -1.0;
    5337        4353 :     proj_ellipsoid_get_parameters(d->getPROJContext(), ellps, nullptr, nullptr,
    5338             :                                   nullptr, &dfInvFlattening);
    5339        4353 :     proj_destroy(ellps);
    5340             : 
    5341        4353 :     if (dfInvFlattening >= 0.0)
    5342             :     {
    5343        4353 :         if (pnErr != nullptr)
    5344        3283 :             *pnErr = OGRERR_NONE;
    5345        4353 :         return dfInvFlattening;
    5346             :     }
    5347             : 
    5348           0 :     return SRS_WGS84_INVFLATTENING;
    5349             : }
    5350             : 
    5351             : /************************************************************************/
    5352             : /*                        OSRGetInvFlattening()                         */
    5353             : /************************************************************************/
    5354             : 
    5355             : /**
    5356             :  * \brief Get spheroid inverse flattening.
    5357             :  *
    5358             :  * This function is the same as OGRSpatialReference::GetInvFlattening()
    5359             :  */
    5360          10 : double OSRGetInvFlattening(OGRSpatialReferenceH hSRS, OGRErr *pnErr)
    5361             : 
    5362             : {
    5363          10 :     VALIDATE_POINTER1(hSRS, "OSRGetInvFlattening", 0);
    5364             : 
    5365          10 :     return ToPointer(hSRS)->GetInvFlattening(pnErr);
    5366             : }
    5367             : 
    5368             : /************************************************************************/
    5369             : /*                           GetEccentricity()                          */
    5370             : /************************************************************************/
    5371             : 
    5372             : /**
    5373             :  * \brief Get spheroid eccentricity
    5374             :  *
    5375             :  * @return eccentricity (or -1 in case of error)
    5376             :  */
    5377             : 
    5378           0 : double OGRSpatialReference::GetEccentricity() const
    5379             : 
    5380             : {
    5381           0 :     OGRErr eErr = OGRERR_NONE;
    5382           0 :     const double dfInvFlattening = GetInvFlattening(&eErr);
    5383           0 :     if (eErr != OGRERR_NONE)
    5384             :     {
    5385           0 :         return -1.0;
    5386             :     }
    5387           0 :     if (dfInvFlattening == 0.0)
    5388           0 :         return 0.0;
    5389           0 :     if (dfInvFlattening < 0.5)
    5390           0 :         return -1.0;
    5391           0 :     return sqrt(2.0 / dfInvFlattening -
    5392           0 :                 1.0 / (dfInvFlattening * dfInvFlattening));
    5393             : }
    5394             : 
    5395             : /************************************************************************/
    5396             : /*                      GetSquaredEccentricity()                        */
    5397             : /************************************************************************/
    5398             : 
    5399             : /**
    5400             :  * \brief Get spheroid squared eccentricity
    5401             :  *
    5402             :  * @return squared eccentricity (or -1 in case of error)
    5403             :  */
    5404             : 
    5405           0 : double OGRSpatialReference::GetSquaredEccentricity() const
    5406             : 
    5407             : {
    5408           0 :     OGRErr eErr = OGRERR_NONE;
    5409           0 :     const double dfInvFlattening = GetInvFlattening(&eErr);
    5410           0 :     if (eErr != OGRERR_NONE)
    5411             :     {
    5412           0 :         return -1.0;
    5413             :     }
    5414           0 :     if (dfInvFlattening == 0.0)
    5415           0 :         return 0.0;
    5416           0 :     if (dfInvFlattening < 0.5)
    5417           0 :         return -1.0;
    5418           0 :     return 2.0 / dfInvFlattening - 1.0 / (dfInvFlattening * dfInvFlattening);
    5419             : }
    5420             : 
    5421             : /************************************************************************/
    5422             : /*                            GetSemiMinor()                            */
    5423             : /************************************************************************/
    5424             : 
    5425             : /**
    5426             :  * \brief Get spheroid semi minor axis.
    5427             :  *
    5428             :  * This method does the same thing as the C function OSRGetSemiMinor().
    5429             :  *
    5430             :  * @param pnErr if non-NULL set to OGRERR_FAILURE if semi minor axis
    5431             :  * can be found.
    5432             :  *
    5433             :  * @return semi-minor axis, or WGS84 semi minor if it can't be found.
    5434             :  */
    5435             : 
    5436         651 : double OGRSpatialReference::GetSemiMinor(OGRErr *pnErr) const
    5437             : 
    5438             : {
    5439         651 :     const double dfSemiMajor = GetSemiMajor(pnErr);
    5440         651 :     const double dfInvFlattening = GetInvFlattening(pnErr);
    5441             : 
    5442         651 :     return OSRCalcSemiMinorFromInvFlattening(dfSemiMajor, dfInvFlattening);
    5443             : }
    5444             : 
    5445             : /************************************************************************/
    5446             : /*                          OSRGetSemiMinor()                           */
    5447             : /************************************************************************/
    5448             : 
    5449             : /**
    5450             :  * \brief Get spheroid semi minor axis.
    5451             :  *
    5452             :  * This function is the same as OGRSpatialReference::GetSemiMinor()
    5453             :  */
    5454           4 : double OSRGetSemiMinor(OGRSpatialReferenceH hSRS, OGRErr *pnErr)
    5455             : 
    5456             : {
    5457           4 :     VALIDATE_POINTER1(hSRS, "OSRGetSemiMinor", 0);
    5458             : 
    5459           4 :     return ToPointer(hSRS)->GetSemiMinor(pnErr);
    5460             : }
    5461             : 
    5462             : /************************************************************************/
    5463             : /*                             SetLocalCS()                             */
    5464             : /************************************************************************/
    5465             : 
    5466             : /**
    5467             :  * \brief Set the user visible LOCAL_CS name.
    5468             :  *
    5469             :  * This method is the same as the C function OSRSetLocalCS().
    5470             :  *
    5471             :  * This method will ensure a LOCAL_CS node is created as the root,
    5472             :  * and set the provided name on it.  It must be used before SetLinearUnits().
    5473             :  *
    5474             :  * @param pszName the user visible name to assign.  Not used as a key.
    5475             :  *
    5476             :  * @return OGRERR_NONE on success.
    5477             :  */
    5478             : 
    5479        2892 : OGRErr OGRSpatialReference::SetLocalCS(const char *pszName)
    5480             : 
    5481             : {
    5482        5784 :     TAKE_OPTIONAL_LOCK();
    5483             : 
    5484        2892 :     if (d->m_pjType == PJ_TYPE_UNKNOWN ||
    5485           0 :         d->m_pjType == PJ_TYPE_ENGINEERING_CRS)
    5486             :     {
    5487        2892 :         d->setPjCRS(proj_create_engineering_crs(d->getPROJContext(), pszName));
    5488             :     }
    5489             :     else
    5490             :     {
    5491           0 :         CPLDebug("OGR",
    5492             :                  "OGRSpatialReference::SetLocalCS(%s) failed.  "
    5493             :                  "It appears an incompatible object already exists.",
    5494             :                  pszName);
    5495           0 :         return OGRERR_FAILURE;
    5496             :     }
    5497             : 
    5498        2892 :     return OGRERR_NONE;
    5499             : }
    5500             : 
    5501             : /************************************************************************/
    5502             : /*                           OSRSetLocalCS()                            */
    5503             : /************************************************************************/
    5504             : 
    5505             : /**
    5506             :  * \brief Set the user visible LOCAL_CS name.
    5507             :  *
    5508             :  * This function is the same as OGRSpatialReference::SetLocalCS()
    5509             :  */
    5510           1 : OGRErr OSRSetLocalCS(OGRSpatialReferenceH hSRS, const char *pszName)
    5511             : 
    5512             : {
    5513           1 :     VALIDATE_POINTER1(hSRS, "OSRSetLocalCS", OGRERR_FAILURE);
    5514             : 
    5515           1 :     return ToPointer(hSRS)->SetLocalCS(pszName);
    5516             : }
    5517             : 
    5518             : /************************************************************************/
    5519             : /*                             SetGeocCS()                              */
    5520             : /************************************************************************/
    5521             : 
    5522             : /**
    5523             :  * \brief Set the user visible GEOCCS name.
    5524             :  *
    5525             :  * This method is the same as the C function OSRSetGeocCS().
    5526             : 
    5527             :  * This method will ensure a GEOCCS node is created as the root,
    5528             :  * and set the provided name on it.  If used on a GEOGCS coordinate system,
    5529             :  * the DATUM and PRIMEM nodes from the GEOGCS will be transferred over to
    5530             :  * the GEOGCS.
    5531             :  *
    5532             :  * @param pszName the user visible name to assign.  Not used as a key.
    5533             :  *
    5534             :  * @return OGRERR_NONE on success.
    5535             :  *
    5536             :  */
    5537             : 
    5538           6 : OGRErr OGRSpatialReference::SetGeocCS(const char *pszName)
    5539             : 
    5540             : {
    5541          12 :     TAKE_OPTIONAL_LOCK();
    5542             : 
    5543           6 :     OGRErr eErr = OGRERR_NONE;
    5544           6 :     d->refreshProjObj();
    5545           6 :     d->demoteFromBoundCRS();
    5546           6 :     if (d->m_pjType == PJ_TYPE_UNKNOWN)
    5547             :     {
    5548           3 :         d->setPjCRS(proj_create_geocentric_crs(
    5549             :             d->getPROJContext(), pszName, "World Geodetic System 1984",
    5550             :             "WGS 84", SRS_WGS84_SEMIMAJOR, SRS_WGS84_INVFLATTENING,
    5551             :             SRS_PM_GREENWICH, 0.0, SRS_UA_DEGREE, CPLAtof(SRS_UA_DEGREE_CONV),
    5552             :             "Metre", 1.0));
    5553             :     }
    5554           3 :     else if (d->m_pjType == PJ_TYPE_GEOCENTRIC_CRS)
    5555             :     {
    5556           1 :         d->setPjCRS(proj_alter_name(d->getPROJContext(), d->m_pj_crs, pszName));
    5557             :     }
    5558           3 :     else if (d->m_pjType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    5559           1 :              d->m_pjType == PJ_TYPE_GEOGRAPHIC_3D_CRS)
    5560             :     {
    5561           1 :         auto datum = proj_crs_get_datum(d->getPROJContext(), d->m_pj_crs);
    5562             : #if PROJ_VERSION_MAJOR > 7 ||                                                  \
    5563             :     (PROJ_VERSION_MAJOR == 7 && PROJ_VERSION_MINOR >= 2)
    5564             :         if (datum == nullptr)
    5565             :         {
    5566             :             datum =
    5567             :                 proj_crs_get_datum_ensemble(d->getPROJContext(), d->m_pj_crs);
    5568             :         }
    5569             : #endif
    5570           1 :         if (datum == nullptr)
    5571             :         {
    5572           0 :             d->undoDemoteFromBoundCRS();
    5573           0 :             return OGRERR_FAILURE;
    5574             :         }
    5575             : 
    5576           1 :         auto pj_crs = proj_create_geocentric_crs_from_datum(
    5577           1 :             d->getPROJContext(), proj_get_name(d->m_pj_crs), datum, nullptr,
    5578             :             0.0);
    5579           1 :         d->setPjCRS(pj_crs);
    5580             : 
    5581           1 :         proj_destroy(datum);
    5582             :     }
    5583             :     else
    5584             :     {
    5585           1 :         CPLDebug("OGR",
    5586             :                  "OGRSpatialReference::SetGeocCS(%s) failed.  "
    5587             :                  "It appears an incompatible object already exists.",
    5588             :                  pszName);
    5589           1 :         eErr = OGRERR_FAILURE;
    5590             :     }
    5591           6 :     d->undoDemoteFromBoundCRS();
    5592             : 
    5593           6 :     return eErr;
    5594             : }
    5595             : 
    5596             : /************************************************************************/
    5597             : /*                            OSRSetGeocCS()                            */
    5598             : /************************************************************************/
    5599             : 
    5600             : /**
    5601             :  * \brief Set the user visible PROJCS name.
    5602             :  *
    5603             :  * This function is the same as OGRSpatialReference::SetGeocCS()
    5604             :  *
    5605             :  */
    5606           4 : OGRErr OSRSetGeocCS(OGRSpatialReferenceH hSRS, const char *pszName)
    5607             : 
    5608             : {
    5609           4 :     VALIDATE_POINTER1(hSRS, "OSRSetGeocCS", OGRERR_FAILURE);
    5610             : 
    5611           4 :     return ToPointer(hSRS)->SetGeocCS(pszName);
    5612             : }
    5613             : 
    5614             : /************************************************************************/
    5615             : /*                             SetVertCS()                              */
    5616             : /************************************************************************/
    5617             : 
    5618             : /**
    5619             :  * \brief Set the user visible VERT_CS name.
    5620             :  *
    5621             :  * This method is the same as the C function OSRSetVertCS().
    5622             : 
    5623             :  * This method will ensure a VERT_CS node is created if needed.  If the
    5624             :  * existing coordinate system is GEOGCS or PROJCS rooted, then it will be
    5625             :  * turned into a COMPD_CS.
    5626             :  *
    5627             :  * @param pszVertCSName the user visible name of the vertical coordinate
    5628             :  * system. Not used as a key.
    5629             :  *
    5630             :  * @param pszVertDatumName the user visible name of the vertical datum.  It
    5631             :  * is helpful if this matches the EPSG name.
    5632             :  *
    5633             :  * @param nVertDatumType the OGC vertical datum type. Ignored
    5634             :  *
    5635             :  * @return OGRERR_NONE on success.
    5636             :  *
    5637             :  */
    5638             : 
    5639           1 : OGRErr OGRSpatialReference::SetVertCS(const char *pszVertCSName,
    5640             :                                       const char *pszVertDatumName,
    5641             :                                       int nVertDatumType)
    5642             : 
    5643             : {
    5644           1 :     TAKE_OPTIONAL_LOCK();
    5645             : 
    5646           1 :     CPL_IGNORE_RET_VAL(nVertDatumType);
    5647             : 
    5648           1 :     d->refreshProjObj();
    5649             : 
    5650           1 :     auto vertCRS = proj_create_vertical_crs(d->getPROJContext(), pszVertCSName,
    5651             :                                             pszVertDatumName, nullptr, 0.0);
    5652             : 
    5653             :     /* -------------------------------------------------------------------- */
    5654             :     /*      Handle the case where we want to make a compound coordinate     */
    5655             :     /*      system.                                                         */
    5656             :     /* -------------------------------------------------------------------- */
    5657           1 :     if (IsProjected() || IsGeographic())
    5658             :     {
    5659           1 :         auto compoundCRS = proj_create_compound_crs(
    5660           1 :             d->getPROJContext(), nullptr, d->m_pj_crs, vertCRS);
    5661           1 :         proj_destroy(vertCRS);
    5662           1 :         d->setPjCRS(compoundCRS);
    5663             :     }
    5664             :     else
    5665             :     {
    5666           0 :         d->setPjCRS(vertCRS);
    5667             :     }
    5668           2 :     return OGRERR_NONE;
    5669             : }
    5670             : 
    5671             : /************************************************************************/
    5672             : /*                            OSRSetVertCS()                            */
    5673             : /************************************************************************/
    5674             : 
    5675             : /**
    5676             :  * \brief Setup the vertical coordinate system.
    5677             :  *
    5678             :  * This function is the same as OGRSpatialReference::SetVertCS()
    5679             :  *
    5680             :  */
    5681           0 : OGRErr OSRSetVertCS(OGRSpatialReferenceH hSRS, const char *pszVertCSName,
    5682             :                     const char *pszVertDatumName, int nVertDatumType)
    5683             : 
    5684             : {
    5685           0 :     VALIDATE_POINTER1(hSRS, "OSRSetVertCS", OGRERR_FAILURE);
    5686             : 
    5687           0 :     return ToPointer(hSRS)->SetVertCS(pszVertCSName, pszVertDatumName,
    5688           0 :                                       nVertDatumType);
    5689             : }
    5690             : 
    5691             : /************************************************************************/
    5692             : /*                           SetCompoundCS()                            */
    5693             : /************************************************************************/
    5694             : 
    5695             : /**
    5696             :  * \brief Setup a compound coordinate system.
    5697             :  *
    5698             :  * This method is the same as the C function OSRSetCompoundCS().
    5699             : 
    5700             :  * This method is replace the current SRS with a COMPD_CS coordinate system
    5701             :  * consisting of the passed in horizontal and vertical coordinate systems.
    5702             :  *
    5703             :  * @param pszName the name of the compound coordinate system.
    5704             :  *
    5705             :  * @param poHorizSRS the horizontal SRS (PROJCS or GEOGCS).
    5706             :  *
    5707             :  * @param poVertSRS the vertical SRS (VERT_CS).
    5708             :  *
    5709             :  * @return OGRERR_NONE on success.
    5710             :  */
    5711             : 
    5712          92 : OGRErr OGRSpatialReference::SetCompoundCS(const char *pszName,
    5713             :                                           const OGRSpatialReference *poHorizSRS,
    5714             :                                           const OGRSpatialReference *poVertSRS)
    5715             : 
    5716             : {
    5717         184 :     TAKE_OPTIONAL_LOCK();
    5718             : 
    5719             :     /* -------------------------------------------------------------------- */
    5720             :     /*      Verify these are legal horizontal and vertical coordinate       */
    5721             :     /*      systems.                                                        */
    5722             :     /* -------------------------------------------------------------------- */
    5723          92 :     if (!poVertSRS->IsVertical())
    5724             :     {
    5725           0 :         CPLError(CE_Failure, CPLE_AppDefined,
    5726             :                  "SetCompoundCS() fails, vertical component is not VERT_CS.");
    5727           0 :         return OGRERR_FAILURE;
    5728             :     }
    5729          92 :     if (!poHorizSRS->IsProjected() && !poHorizSRS->IsGeographic())
    5730             :     {
    5731           0 :         CPLError(CE_Failure, CPLE_AppDefined,
    5732             :                  "SetCompoundCS() fails, horizontal component is not PROJCS or "
    5733             :                  "GEOGCS.");
    5734           0 :         return OGRERR_FAILURE;
    5735             :     }
    5736             : 
    5737             :     /* -------------------------------------------------------------------- */
    5738             :     /*      Replace with compound srs.                                      */
    5739             :     /* -------------------------------------------------------------------- */
    5740          92 :     Clear();
    5741             : 
    5742          92 :     auto compoundCRS = proj_create_compound_crs(d->getPROJContext(), pszName,
    5743          92 :                                                 poHorizSRS->d->m_pj_crs,
    5744          92 :                                                 poVertSRS->d->m_pj_crs);
    5745          92 :     d->setPjCRS(compoundCRS);
    5746             : 
    5747          92 :     return OGRERR_NONE;
    5748             : }
    5749             : 
    5750             : /************************************************************************/
    5751             : /*                          OSRSetCompoundCS()                          */
    5752             : /************************************************************************/
    5753             : 
    5754             : /**
    5755             :  * \brief Setup a compound coordinate system.
    5756             :  *
    5757             :  * This function is the same as OGRSpatialReference::SetCompoundCS()
    5758             :  */
    5759           8 : OGRErr OSRSetCompoundCS(OGRSpatialReferenceH hSRS, const char *pszName,
    5760             :                         OGRSpatialReferenceH hHorizSRS,
    5761             :                         OGRSpatialReferenceH hVertSRS)
    5762             : 
    5763             : {
    5764           8 :     VALIDATE_POINTER1(hSRS, "OSRSetCompoundCS", OGRERR_FAILURE);
    5765           8 :     VALIDATE_POINTER1(hHorizSRS, "OSRSetCompoundCS", OGRERR_FAILURE);
    5766           8 :     VALIDATE_POINTER1(hVertSRS, "OSRSetCompoundCS", OGRERR_FAILURE);
    5767             : 
    5768          16 :     return ToPointer(hSRS)->SetCompoundCS(pszName, ToPointer(hHorizSRS),
    5769          16 :                                           ToPointer(hVertSRS));
    5770             : }
    5771             : 
    5772             : /************************************************************************/
    5773             : /*                             SetProjCS()                              */
    5774             : /************************************************************************/
    5775             : 
    5776             : /**
    5777             :  * \brief Set the user visible PROJCS name.
    5778             :  *
    5779             :  * This method is the same as the C function OSRSetProjCS().
    5780             :  *
    5781             :  * This method will ensure a PROJCS node is created as the root,
    5782             :  * and set the provided name on it.  If used on a GEOGCS coordinate system,
    5783             :  * the GEOGCS node will be demoted to be a child of the new PROJCS root.
    5784             :  *
    5785             :  * @param pszName the user visible name to assign.  Not used as a key.
    5786             :  *
    5787             :  * @return OGRERR_NONE on success.
    5788             :  */
    5789             : 
    5790        4678 : OGRErr OGRSpatialReference::SetProjCS(const char *pszName)
    5791             : 
    5792             : {
    5793        4678 :     TAKE_OPTIONAL_LOCK();
    5794             : 
    5795        4678 :     d->refreshProjObj();
    5796        4678 :     d->demoteFromBoundCRS();
    5797        4678 :     if (d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    5798             :     {
    5799         487 :         d->setPjCRS(proj_alter_name(d->getPROJContext(), d->m_pj_crs, pszName));
    5800             :     }
    5801             :     else
    5802             :     {
    5803        4191 :         auto dummyConv = proj_create_conversion(d->getPROJContext(), nullptr,
    5804             :                                                 nullptr, nullptr, nullptr,
    5805             :                                                 nullptr, nullptr, 0, nullptr);
    5806        4191 :         auto cs = proj_create_cartesian_2D_cs(
    5807             :             d->getPROJContext(), PJ_CART2D_EASTING_NORTHING, nullptr, 0);
    5808             : 
    5809        4191 :         auto projCRS = proj_create_projected_crs(
    5810        4191 :             d->getPROJContext(), pszName, d->getGeodBaseCRS(), dummyConv, cs);
    5811        4191 :         proj_destroy(dummyConv);
    5812        4191 :         proj_destroy(cs);
    5813             : 
    5814        4191 :         d->setPjCRS(projCRS);
    5815             :     }
    5816        4678 :     d->undoDemoteFromBoundCRS();
    5817        9356 :     return OGRERR_NONE;
    5818             : }
    5819             : 
    5820             : /************************************************************************/
    5821             : /*                            OSRSetProjCS()                            */
    5822             : /************************************************************************/
    5823             : 
    5824             : /**
    5825             :  * \brief Set the user visible PROJCS name.
    5826             :  *
    5827             :  * This function is the same as OGRSpatialReference::SetProjCS()
    5828             :  */
    5829           1 : OGRErr OSRSetProjCS(OGRSpatialReferenceH hSRS, const char *pszName)
    5830             : 
    5831             : {
    5832           1 :     VALIDATE_POINTER1(hSRS, "OSRSetProjCS", OGRERR_FAILURE);
    5833             : 
    5834           1 :     return ToPointer(hSRS)->SetProjCS(pszName);
    5835             : }
    5836             : 
    5837             : /************************************************************************/
    5838             : /*                           SetProjection()                            */
    5839             : /************************************************************************/
    5840             : 
    5841             : /**
    5842             :  * \brief Set a projection name.
    5843             :  *
    5844             :  * This method is the same as the C function OSRSetProjection().
    5845             :  *
    5846             :  * @param pszProjection the projection name, which should be selected from
    5847             :  * the macros in ogr_srs_api.h, such as SRS_PT_TRANSVERSE_MERCATOR.
    5848             :  *
    5849             :  * @return OGRERR_NONE on success.
    5850             :  */
    5851             : 
    5852          23 : OGRErr OGRSpatialReference::SetProjection(const char *pszProjection)
    5853             : 
    5854             : {
    5855          46 :     TAKE_OPTIONAL_LOCK();
    5856             : 
    5857          23 :     OGR_SRSNode *poGeogCS = nullptr;
    5858             : 
    5859          23 :     if (GetRoot() != nullptr && EQUAL(d->m_poRoot->GetValue(), "GEOGCS"))
    5860             :     {
    5861           4 :         poGeogCS = d->m_poRoot;
    5862           4 :         d->m_poRoot = nullptr;
    5863             :     }
    5864             : 
    5865          23 :     if (!GetAttrNode("PROJCS"))
    5866             :     {
    5867          11 :         SetNode("PROJCS", "unnamed");
    5868             :     }
    5869             : 
    5870          23 :     const OGRErr eErr = SetNode("PROJCS|PROJECTION", pszProjection);
    5871          23 :     if (eErr != OGRERR_NONE)
    5872           0 :         return eErr;
    5873             : 
    5874          23 :     if (poGeogCS != nullptr)
    5875           4 :         d->m_poRoot->InsertChild(poGeogCS, 1);
    5876             : 
    5877          23 :     return OGRERR_NONE;
    5878             : }
    5879             : 
    5880             : /************************************************************************/
    5881             : /*                            OSRSetProjection()                        */
    5882             : /************************************************************************/
    5883             : 
    5884             : /**
    5885             :  * \brief Set a projection name.
    5886             :  *
    5887             :  * This function is the same as OGRSpatialReference::SetProjection()
    5888             :  */
    5889           0 : OGRErr OSRSetProjection(OGRSpatialReferenceH hSRS, const char *pszProjection)
    5890             : 
    5891             : {
    5892           0 :     VALIDATE_POINTER1(hSRS, "OSRSetProjection", OGRERR_FAILURE);
    5893             : 
    5894           0 :     return ToPointer(hSRS)->SetProjection(pszProjection);
    5895             : }
    5896             : 
    5897             : /************************************************************************/
    5898             : /*                      GetWKT2ProjectionMethod()                       */
    5899             : /************************************************************************/
    5900             : 
    5901             : /**
    5902             :  * \brief Returns info on the projection method, based on WKT2 naming
    5903             :  * conventions.
    5904             :  *
    5905             :  * The returned strings are short lived and should be considered to be
    5906             :  * invalidated by any further call to the GDAL API.
    5907             :  *
    5908             :  * @param[out] ppszMethodName Pointer to a string that will receive the
    5909             :  * projection method name.
    5910             :  * @param[out] ppszMethodAuthName null pointer, or pointer to a string that will
    5911             :  * receive the name of the authority that defines the projection method.
    5912             :  * *ppszMethodAuthName may be nullptr if the projection method is not linked to
    5913             :  * an authority.
    5914             :  * @param[out] ppszMethodCode null pointer, or pointer to a string that will
    5915             :  * receive the code that defines the projection method.
    5916             :  * *ppszMethodCode may be nullptr if the projection method is not linked to
    5917             :  * an authority.
    5918             :  *
    5919             :  * @return OGRERR_NONE on success.
    5920             :  */
    5921             : OGRErr
    5922           1 : OGRSpatialReference::GetWKT2ProjectionMethod(const char **ppszMethodName,
    5923             :                                              const char **ppszMethodAuthName,
    5924             :                                              const char **ppszMethodCode) const
    5925             : {
    5926           2 :     TAKE_OPTIONAL_LOCK();
    5927             : 
    5928           1 :     auto conv = proj_crs_get_coordoperation(d->getPROJContext(), d->m_pj_crs);
    5929           1 :     if (!conv)
    5930           0 :         return OGRERR_FAILURE;
    5931           1 :     const char *pszTmpMethodName = "";
    5932           1 :     const char *pszTmpMethodAuthName = "";
    5933           1 :     const char *pszTmpMethodCode = "";
    5934           1 :     int ret = proj_coordoperation_get_method_info(
    5935             :         d->getPROJContext(), conv, &pszTmpMethodName, &pszTmpMethodAuthName,
    5936             :         &pszTmpMethodCode);
    5937             :     // "Internalize" temporary strings returned by PROJ
    5938           1 :     CPLAssert(pszTmpMethodName);
    5939           1 :     if (ppszMethodName)
    5940           1 :         *ppszMethodName = CPLSPrintf("%s", pszTmpMethodName);
    5941           1 :     if (ppszMethodAuthName)
    5942           0 :         *ppszMethodAuthName = pszTmpMethodAuthName
    5943           0 :                                   ? CPLSPrintf("%s", pszTmpMethodAuthName)
    5944           0 :                                   : nullptr;
    5945           1 :     if (ppszMethodCode)
    5946           0 :         *ppszMethodCode =
    5947           0 :             pszTmpMethodCode ? CPLSPrintf("%s", pszTmpMethodCode) : nullptr;
    5948           1 :     proj_destroy(conv);
    5949           1 :     return ret ? OGRERR_NONE : OGRERR_FAILURE;
    5950             : }
    5951             : 
    5952             : /************************************************************************/
    5953             : /*                            SetProjParm()                             */
    5954             : /************************************************************************/
    5955             : 
    5956             : /**
    5957             :  * \brief Set a projection parameter value.
    5958             :  *
    5959             :  * Adds a new PARAMETER under the PROJCS with the indicated name and value.
    5960             :  *
    5961             :  * This method is the same as the C function OSRSetProjParm().
    5962             :  *
    5963             :  * Please check https://gdal.org/proj_list pages for
    5964             :  * legal parameter names for specific projections.
    5965             :  *
    5966             :  *
    5967             :  * @param pszParamName the parameter name, which should be selected from
    5968             :  * the macros in ogr_srs_api.h, such as SRS_PP_CENTRAL_MERIDIAN.
    5969             :  *
    5970             :  * @param dfValue value to assign.
    5971             :  *
    5972             :  * @return OGRERR_NONE on success.
    5973             :  */
    5974             : 
    5975         129 : OGRErr OGRSpatialReference::SetProjParm(const char *pszParamName,
    5976             :                                         double dfValue)
    5977             : 
    5978             : {
    5979         258 :     TAKE_OPTIONAL_LOCK();
    5980             : 
    5981         129 :     OGR_SRSNode *poPROJCS = GetAttrNode("PROJCS");
    5982             : 
    5983         129 :     if (poPROJCS == nullptr)
    5984           3 :         return OGRERR_FAILURE;
    5985             : 
    5986         126 :     char szValue[64] = {'\0'};
    5987         126 :     OGRsnPrintDouble(szValue, sizeof(szValue), dfValue);
    5988             : 
    5989             :     /* -------------------------------------------------------------------- */
    5990             :     /*      Try to find existing parameter with this name.                  */
    5991             :     /* -------------------------------------------------------------------- */
    5992        1030 :     for (int iChild = 0; iChild < poPROJCS->GetChildCount(); iChild++)
    5993             :     {
    5994         943 :         OGR_SRSNode *poParam = poPROJCS->GetChild(iChild);
    5995             : 
    5996        1242 :         if (EQUAL(poParam->GetValue(), "PARAMETER") &&
    5997        1242 :             poParam->GetChildCount() == 2 &&
    5998         299 :             EQUAL(poParam->GetChild(0)->GetValue(), pszParamName))
    5999             :         {
    6000          39 :             poParam->GetChild(1)->SetValue(szValue);
    6001          39 :             return OGRERR_NONE;
    6002             :         }
    6003             :     }
    6004             : 
    6005             :     /* -------------------------------------------------------------------- */
    6006             :     /*      Otherwise create a new parameter and append.                    */
    6007             :     /* -------------------------------------------------------------------- */
    6008          87 :     OGR_SRSNode *poParam = new OGR_SRSNode("PARAMETER");
    6009          87 :     poParam->AddChild(new OGR_SRSNode(pszParamName));
    6010          87 :     poParam->AddChild(new OGR_SRSNode(szValue));
    6011             : 
    6012          87 :     poPROJCS->AddChild(poParam);
    6013             : 
    6014          87 :     return OGRERR_NONE;
    6015             : }
    6016             : 
    6017             : /************************************************************************/
    6018             : /*                           OSRSetProjParm()                           */
    6019             : /************************************************************************/
    6020             : 
    6021             : /**
    6022             :  * \brief Set a projection parameter value.
    6023             :  *
    6024             :  * This function is the same as OGRSpatialReference::SetProjParm()
    6025             :  */
    6026           0 : OGRErr OSRSetProjParm(OGRSpatialReferenceH hSRS, const char *pszParamName,
    6027             :                       double dfValue)
    6028             : 
    6029             : {
    6030           0 :     VALIDATE_POINTER1(hSRS, "OSRSetProjParm", OGRERR_FAILURE);
    6031             : 
    6032           0 :     return ToPointer(hSRS)->SetProjParm(pszParamName, dfValue);
    6033             : }
    6034             : 
    6035             : /************************************************************************/
    6036             : /*                            FindProjParm()                            */
    6037             : /************************************************************************/
    6038             : 
    6039             : /**
    6040             :  * \brief Return the child index of the named projection parameter on
    6041             :  * its parent PROJCS node.
    6042             :  *
    6043             :  * @param pszParameter projection parameter to look for
    6044             :  * @param poPROJCS projection CS node to look in. If NULL is passed,
    6045             :  *        the PROJCS node of the SpatialReference object will be searched.
    6046             :  *
    6047             :  * @return the child index of the named projection parameter. -1 on failure
    6048             :  */
    6049        4983 : int OGRSpatialReference::FindProjParm(const char *pszParameter,
    6050             :                                       const OGR_SRSNode *poPROJCS) const
    6051             : 
    6052             : {
    6053        9966 :     TAKE_OPTIONAL_LOCK();
    6054             : 
    6055        4983 :     if (poPROJCS == nullptr)
    6056           0 :         poPROJCS = GetAttrNode("PROJCS");
    6057             : 
    6058        4983 :     if (poPROJCS == nullptr)
    6059           0 :         return -1;
    6060             : 
    6061             :     /* -------------------------------------------------------------------- */
    6062             :     /*      Search for requested parameter.                                 */
    6063             :     /* -------------------------------------------------------------------- */
    6064        4983 :     bool bIsWKT2 = false;
    6065       32886 :     for (int iChild = 0; iChild < poPROJCS->GetChildCount(); iChild++)
    6066             :     {
    6067       32239 :         const OGR_SRSNode *poParameter = poPROJCS->GetChild(iChild);
    6068             : 
    6069       32239 :         if (poParameter->GetChildCount() >= 2)
    6070             :         {
    6071       22314 :             const char *pszValue = poParameter->GetValue();
    6072       36884 :             if (EQUAL(pszValue, "PARAMETER") &&
    6073       14570 :                 EQUAL(poPROJCS->GetChild(iChild)->GetChild(0)->GetValue(),
    6074             :                       pszParameter))
    6075             :             {
    6076        4336 :                 return iChild;
    6077             :             }
    6078       17978 :             else if (EQUAL(pszValue, "METHOD"))
    6079             :             {
    6080          41 :                 bIsWKT2 = true;
    6081             :             }
    6082             :         }
    6083             :     }
    6084             : 
    6085             :     /* -------------------------------------------------------------------- */
    6086             :     /*      Try similar names, for selected parameters.                     */
    6087             :     /* -------------------------------------------------------------------- */
    6088         647 :     if (EQUAL(pszParameter, SRS_PP_LATITUDE_OF_ORIGIN))
    6089             :     {
    6090         302 :         if (bIsWKT2)
    6091             :         {
    6092           8 :             int iChild = FindProjParm(
    6093             :                 EPSG_NAME_PARAMETER_LATITUDE_OF_NATURAL_ORIGIN, poPROJCS);
    6094           8 :             if (iChild == -1)
    6095           3 :                 iChild = FindProjParm(
    6096             :                     EPSG_NAME_PARAMETER_LATITUDE_PROJECTION_CENTRE, poPROJCS);
    6097           8 :             return iChild;
    6098             :         }
    6099         294 :         return FindProjParm(SRS_PP_LATITUDE_OF_CENTER, poPROJCS);
    6100             :     }
    6101             : 
    6102         345 :     if (EQUAL(pszParameter, SRS_PP_CENTRAL_MERIDIAN))
    6103             :     {
    6104          36 :         if (bIsWKT2)
    6105             :         {
    6106           9 :             int iChild = FindProjParm(
    6107             :                 EPSG_NAME_PARAMETER_LONGITUDE_OF_NATURAL_ORIGIN, poPROJCS);
    6108           9 :             if (iChild == -1)
    6109           0 :                 iChild = FindProjParm(
    6110             :                     EPSG_NAME_PARAMETER_LONGITUDE_PROJECTION_CENTRE, poPROJCS);
    6111           9 :             return iChild;
    6112             :         }
    6113          27 :         int iChild = FindProjParm(SRS_PP_LONGITUDE_OF_CENTER, poPROJCS);
    6114          27 :         if (iChild == -1)
    6115           0 :             iChild = FindProjParm(SRS_PP_LONGITUDE_OF_ORIGIN, poPROJCS);
    6116          27 :         return iChild;
    6117             :     }
    6118             : 
    6119         309 :     return -1;
    6120             : }
    6121             : 
    6122             : /************************************************************************/
    6123             : /*                            GetProjParm()                             */
    6124             : /************************************************************************/
    6125             : 
    6126             : /**
    6127             :  * \brief Fetch a projection parameter value.
    6128             :  *
    6129             :  * NOTE: This code should be modified to translate non degree angles into
    6130             :  * degrees based on the GEOGCS unit.  This has not yet been done.
    6131             :  *
    6132             :  * This method is the same as the C function OSRGetProjParm().
    6133             :  *
    6134             :  * @param pszName the name of the parameter to fetch, from the set of
    6135             :  * SRS_PP codes in ogr_srs_api.h.
    6136             :  *
    6137             :  * @param dfDefaultValue the value to return if this parameter doesn't exist.
    6138             :  *
    6139             :  * @param pnErr place to put error code on failure.  Ignored if NULL.
    6140             :  *
    6141             :  * @return value of parameter.
    6142             :  */
    6143             : 
    6144        4900 : double OGRSpatialReference::GetProjParm(const char *pszName,
    6145             :                                         double dfDefaultValue,
    6146             :                                         OGRErr *pnErr) const
    6147             : 
    6148             : {
    6149        9800 :     TAKE_OPTIONAL_LOCK();
    6150             : 
    6151        4900 :     d->refreshProjObj();
    6152        4900 :     GetRoot();  // force update of d->m_bNodesWKT2
    6153             : 
    6154        4900 :     if (pnErr != nullptr)
    6155        3921 :         *pnErr = OGRERR_NONE;
    6156             : 
    6157             :     /* -------------------------------------------------------------------- */
    6158             :     /*      Find the desired parameter.                                     */
    6159             :     /* -------------------------------------------------------------------- */
    6160             :     const OGR_SRSNode *poPROJCS =
    6161        4900 :         GetAttrNode(d->m_bNodesWKT2 ? "CONVERSION" : "PROJCS");
    6162        4900 :     if (poPROJCS == nullptr)
    6163             :     {
    6164         258 :         if (pnErr != nullptr)
    6165         258 :             *pnErr = OGRERR_FAILURE;
    6166         258 :         return dfDefaultValue;
    6167             :     }
    6168             : 
    6169        4642 :     const int iChild = FindProjParm(pszName, poPROJCS);
    6170        4642 :     if (iChild == -1)
    6171             :     {
    6172         306 :         if (IsProjected() && GetAxesCount() == 3)
    6173             :         {
    6174           3 :             OGRSpatialReference *poSRSTmp = Clone();
    6175           3 :             poSRSTmp->DemoteTo2D(nullptr);
    6176             :             const double dfRet =
    6177           3 :                 poSRSTmp->GetProjParm(pszName, dfDefaultValue, pnErr);
    6178           3 :             delete poSRSTmp;
    6179           3 :             return dfRet;
    6180             :         }
    6181             : 
    6182         303 :         if (pnErr != nullptr)
    6183         281 :             *pnErr = OGRERR_FAILURE;
    6184         303 :         return dfDefaultValue;
    6185             :     }
    6186             : 
    6187        4336 :     const OGR_SRSNode *poParameter = poPROJCS->GetChild(iChild);
    6188        4336 :     return CPLAtof(poParameter->GetChild(1)->GetValue());
    6189             : }
    6190             : 
    6191             : /************************************************************************/
    6192             : /*                           OSRGetProjParm()                           */
    6193             : /************************************************************************/
    6194             : 
    6195             : /**
    6196             :  * \brief Fetch a projection parameter value.
    6197             :  *
    6198             :  * This function is the same as OGRSpatialReference::GetProjParm()
    6199             :  */
    6200          90 : double OSRGetProjParm(OGRSpatialReferenceH hSRS, const char *pszName,
    6201             :                       double dfDefaultValue, OGRErr *pnErr)
    6202             : 
    6203             : {
    6204          90 :     VALIDATE_POINTER1(hSRS, "OSRGetProjParm", 0);
    6205             : 
    6206          90 :     return ToPointer(hSRS)->GetProjParm(pszName, dfDefaultValue, pnErr);
    6207             : }
    6208             : 
    6209             : /************************************************************************/
    6210             : /*                          GetNormProjParm()                           */
    6211             : /************************************************************************/
    6212             : 
    6213             : /**
    6214             :  * \brief Fetch a normalized projection parameter value.
    6215             :  *
    6216             :  * This method is the same as GetProjParm() except that the value of
    6217             :  * the parameter is "normalized" into degrees or meters depending on
    6218             :  * whether it is linear or angular.
    6219             :  *
    6220             :  * This method is the same as the C function OSRGetNormProjParm().
    6221             :  *
    6222             :  * @param pszName the name of the parameter to fetch, from the set of
    6223             :  * SRS_PP codes in ogr_srs_api.h.
    6224             :  *
    6225             :  * @param dfDefaultValue the value to return if this parameter doesn't exist.
    6226             :  *
    6227             :  * @param pnErr place to put error code on failure.  Ignored if NULL.
    6228             :  *
    6229             :  * @return value of parameter.
    6230             :  */
    6231             : 
    6232        3896 : double OGRSpatialReference::GetNormProjParm(const char *pszName,
    6233             :                                             double dfDefaultValue,
    6234             :                                             OGRErr *pnErr) const
    6235             : 
    6236             : {
    6237        7792 :     TAKE_OPTIONAL_LOCK();
    6238             : 
    6239        3896 :     GetNormInfo();
    6240             : 
    6241        3896 :     OGRErr nError = OGRERR_NONE;
    6242        3896 :     double dfRawResult = GetProjParm(pszName, dfDefaultValue, &nError);
    6243        3896 :     if (pnErr != nullptr)
    6244           0 :         *pnErr = nError;
    6245             : 
    6246             :     // If we got the default just return it unadjusted.
    6247        3896 :     if (nError != OGRERR_NONE)
    6248         539 :         return dfRawResult;
    6249             : 
    6250        3357 :     if (d->dfToDegrees != 1.0 && IsAngularParameter(pszName))
    6251           8 :         dfRawResult *= d->dfToDegrees;
    6252             : 
    6253        3357 :     if (d->dfToMeter != 1.0 && IsLinearParameter(pszName))
    6254           5 :         return dfRawResult * d->dfToMeter;
    6255             : 
    6256        3352 :     return dfRawResult;
    6257             : }
    6258             : 
    6259             : /************************************************************************/
    6260             : /*                         OSRGetNormProjParm()                         */
    6261             : /************************************************************************/
    6262             : 
    6263             : /**
    6264             :  * \brief This function is the same as OGRSpatialReference::
    6265             :  *
    6266             :  * This function is the same as OGRSpatialReference::GetNormProjParm()
    6267             :  */
    6268           1 : double OSRGetNormProjParm(OGRSpatialReferenceH hSRS, const char *pszName,
    6269             :                           double dfDefaultValue, OGRErr *pnErr)
    6270             : 
    6271             : {
    6272           1 :     VALIDATE_POINTER1(hSRS, "OSRGetNormProjParm", 0);
    6273             : 
    6274           1 :     return ToPointer(hSRS)->GetNormProjParm(pszName, dfDefaultValue, pnErr);
    6275             : }
    6276             : 
    6277             : /************************************************************************/
    6278             : /*                          SetNormProjParm()                           */
    6279             : /************************************************************************/
    6280             : 
    6281             : /**
    6282             :  * \brief Set a projection parameter with a normalized value.
    6283             :  *
    6284             :  * This method is the same as SetProjParm() except that the value of
    6285             :  * the parameter passed in is assumed to be in "normalized" form (decimal
    6286             :  * degrees for angular values, meters for linear values.  The values are
    6287             :  * converted in a form suitable for the GEOGCS and linear units in effect.
    6288             :  *
    6289             :  * This method is the same as the C function OSRSetNormProjParm().
    6290             :  *
    6291             :  * @param pszName the parameter name, which should be selected from
    6292             :  * the macros in ogr_srs_api.h, such as SRS_PP_CENTRAL_MERIDIAN.
    6293             :  *
    6294             :  * @param dfValue value to assign.
    6295             :  *
    6296             :  * @return OGRERR_NONE on success.
    6297             :  */
    6298             : 
    6299          91 : OGRErr OGRSpatialReference::SetNormProjParm(const char *pszName, double dfValue)
    6300             : 
    6301             : {
    6302         182 :     TAKE_OPTIONAL_LOCK();
    6303             : 
    6304          91 :     GetNormInfo();
    6305             : 
    6306          91 :     if (d->dfToDegrees != 0.0 &&
    6307          91 :         (d->dfToDegrees != 1.0 || d->dfFromGreenwich != 0.0) &&
    6308           0 :         IsAngularParameter(pszName))
    6309             :     {
    6310           0 :         dfValue /= d->dfToDegrees;
    6311             :     }
    6312          95 :     else if (d->dfToMeter != 1.0 && d->dfToMeter != 0.0 &&
    6313           4 :              IsLinearParameter(pszName))
    6314           4 :         dfValue /= d->dfToMeter;
    6315             : 
    6316         182 :     return SetProjParm(pszName, dfValue);
    6317             : }
    6318             : 
    6319             : /************************************************************************/
    6320             : /*                         OSRSetNormProjParm()                         */
    6321             : /************************************************************************/
    6322             : 
    6323             : /**
    6324             :  * \brief Set a projection parameter with a normalized value.
    6325             :  *
    6326             :  * This function is the same as OGRSpatialReference::SetNormProjParm()
    6327             :  */
    6328           0 : OGRErr OSRSetNormProjParm(OGRSpatialReferenceH hSRS, const char *pszParamName,
    6329             :                           double dfValue)
    6330             : 
    6331             : {
    6332           0 :     VALIDATE_POINTER1(hSRS, "OSRSetNormProjParm", OGRERR_FAILURE);
    6333             : 
    6334           0 :     return ToPointer(hSRS)->SetNormProjParm(pszParamName, dfValue);
    6335             : }
    6336             : 
    6337             : /************************************************************************/
    6338             : /*                               SetTM()                                */
    6339             : /************************************************************************/
    6340             : 
    6341         439 : OGRErr OGRSpatialReference::SetTM(double dfCenterLat, double dfCenterLong,
    6342             :                                   double dfScale, double dfFalseEasting,
    6343             :                                   double dfFalseNorthing)
    6344             : 
    6345             : {
    6346         878 :     TAKE_OPTIONAL_LOCK();
    6347             : 
    6348         439 :     return d->replaceConversionAndUnref(
    6349             :         proj_create_conversion_transverse_mercator(
    6350             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfScale,
    6351         878 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6352             : }
    6353             : 
    6354             : /************************************************************************/
    6355             : /*                              OSRSetTM()                              */
    6356             : /************************************************************************/
    6357             : 
    6358           1 : OGRErr OSRSetTM(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6359             :                 double dfCenterLong, double dfScale, double dfFalseEasting,
    6360             :                 double dfFalseNorthing)
    6361             : 
    6362             : {
    6363           1 :     VALIDATE_POINTER1(hSRS, "OSRSetTM", OGRERR_FAILURE);
    6364             : 
    6365           1 :     return ToPointer(hSRS)->SetTM(dfCenterLat, dfCenterLong, dfScale,
    6366           1 :                                   dfFalseEasting, dfFalseNorthing);
    6367             : }
    6368             : 
    6369             : /************************************************************************/
    6370             : /*                            SetTMVariant()                            */
    6371             : /************************************************************************/
    6372             : 
    6373           0 : OGRErr OGRSpatialReference::SetTMVariant(const char *pszVariantName,
    6374             :                                          double dfCenterLat,
    6375             :                                          double dfCenterLong, double dfScale,
    6376             :                                          double dfFalseEasting,
    6377             :                                          double dfFalseNorthing)
    6378             : 
    6379             : {
    6380           0 :     TAKE_OPTIONAL_LOCK();
    6381             : 
    6382           0 :     SetProjection(pszVariantName);
    6383           0 :     SetNormProjParm(SRS_PP_LATITUDE_OF_ORIGIN, dfCenterLat);
    6384           0 :     SetNormProjParm(SRS_PP_CENTRAL_MERIDIAN, dfCenterLong);
    6385           0 :     SetNormProjParm(SRS_PP_SCALE_FACTOR, dfScale);
    6386           0 :     SetNormProjParm(SRS_PP_FALSE_EASTING, dfFalseEasting);
    6387           0 :     SetNormProjParm(SRS_PP_FALSE_NORTHING, dfFalseNorthing);
    6388             : 
    6389           0 :     return OGRERR_NONE;
    6390             : }
    6391             : 
    6392             : /************************************************************************/
    6393             : /*                          OSRSetTMVariant()                           */
    6394             : /************************************************************************/
    6395             : 
    6396           0 : OGRErr OSRSetTMVariant(OGRSpatialReferenceH hSRS, const char *pszVariantName,
    6397             :                        double dfCenterLat, double dfCenterLong, double dfScale,
    6398             :                        double dfFalseEasting, double dfFalseNorthing)
    6399             : 
    6400             : {
    6401           0 :     VALIDATE_POINTER1(hSRS, "OSRSetTMVariant", OGRERR_FAILURE);
    6402             : 
    6403           0 :     return ToPointer(hSRS)->SetTMVariant(pszVariantName, dfCenterLat,
    6404             :                                          dfCenterLong, dfScale, dfFalseEasting,
    6405           0 :                                          dfFalseNorthing);
    6406             : }
    6407             : 
    6408             : /************************************************************************/
    6409             : /*                              SetTMSO()                               */
    6410             : /************************************************************************/
    6411             : 
    6412           3 : OGRErr OGRSpatialReference::SetTMSO(double dfCenterLat, double dfCenterLong,
    6413             :                                     double dfScale, double dfFalseEasting,
    6414             :                                     double dfFalseNorthing)
    6415             : 
    6416             : {
    6417           6 :     TAKE_OPTIONAL_LOCK();
    6418             : 
    6419           3 :     auto conv = proj_create_conversion_transverse_mercator_south_oriented(
    6420             :         d->getPROJContext(), dfCenterLat, dfCenterLong, dfScale, dfFalseEasting,
    6421             :         dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6422             : 
    6423           3 :     const char *pszName = nullptr;
    6424           3 :     double dfConvFactor = GetTargetLinearUnits(nullptr, &pszName);
    6425           3 :     CPLString osName = pszName ? pszName : "";
    6426             : 
    6427           3 :     d->refreshProjObj();
    6428             : 
    6429           3 :     d->demoteFromBoundCRS();
    6430             : 
    6431           3 :     auto cs = proj_create_cartesian_2D_cs(
    6432             :         d->getPROJContext(), PJ_CART2D_WESTING_SOUTHING,
    6433           3 :         !osName.empty() ? osName.c_str() : nullptr, dfConvFactor);
    6434             :     auto projCRS =
    6435           3 :         proj_create_projected_crs(d->getPROJContext(), d->getProjCRSName(),
    6436           3 :                                   d->getGeodBaseCRS(), conv, cs);
    6437           3 :     proj_destroy(conv);
    6438           3 :     proj_destroy(cs);
    6439             : 
    6440           3 :     d->setPjCRS(projCRS);
    6441             : 
    6442           3 :     d->undoDemoteFromBoundCRS();
    6443             : 
    6444           6 :     return OGRERR_NONE;
    6445             : }
    6446             : 
    6447             : /************************************************************************/
    6448             : /*                             OSRSetTMSO()                             */
    6449             : /************************************************************************/
    6450             : 
    6451           0 : OGRErr OSRSetTMSO(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6452             :                   double dfCenterLong, double dfScale, double dfFalseEasting,
    6453             :                   double dfFalseNorthing)
    6454             : 
    6455             : {
    6456           0 :     VALIDATE_POINTER1(hSRS, "OSRSetTMSO", OGRERR_FAILURE);
    6457             : 
    6458           0 :     return ToPointer(hSRS)->SetTMSO(dfCenterLat, dfCenterLong, dfScale,
    6459           0 :                                     dfFalseEasting, dfFalseNorthing);
    6460             : }
    6461             : 
    6462             : /************************************************************************/
    6463             : /*                              SetTPED()                               */
    6464             : /************************************************************************/
    6465             : 
    6466           1 : OGRErr OGRSpatialReference::SetTPED(double dfLat1, double dfLong1,
    6467             :                                     double dfLat2, double dfLong2,
    6468             :                                     double dfFalseEasting,
    6469             :                                     double dfFalseNorthing)
    6470             : 
    6471             : {
    6472           2 :     TAKE_OPTIONAL_LOCK();
    6473             : 
    6474           1 :     return d->replaceConversionAndUnref(
    6475             :         proj_create_conversion_two_point_equidistant(
    6476             :             d->getPROJContext(), dfLat1, dfLong1, dfLat2, dfLong2,
    6477           2 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6478             : }
    6479             : 
    6480             : /************************************************************************/
    6481             : /*                             OSRSetTPED()                             */
    6482             : /************************************************************************/
    6483             : 
    6484           0 : OGRErr OSRSetTPED(OGRSpatialReferenceH hSRS, double dfLat1, double dfLong1,
    6485             :                   double dfLat2, double dfLong2, double dfFalseEasting,
    6486             :                   double dfFalseNorthing)
    6487             : 
    6488             : {
    6489           0 :     VALIDATE_POINTER1(hSRS, "OSRSetTPED", OGRERR_FAILURE);
    6490             : 
    6491           0 :     return ToPointer(hSRS)->SetTPED(dfLat1, dfLong1, dfLat2, dfLong2,
    6492           0 :                                     dfFalseEasting, dfFalseNorthing);
    6493             : }
    6494             : 
    6495             : /************************************************************************/
    6496             : /*                               SetTMG()                               */
    6497             : /************************************************************************/
    6498             : 
    6499           0 : OGRErr OGRSpatialReference::SetTMG(double dfCenterLat, double dfCenterLong,
    6500             :                                    double dfFalseEasting,
    6501             :                                    double dfFalseNorthing)
    6502             : 
    6503             : {
    6504           0 :     TAKE_OPTIONAL_LOCK();
    6505             : 
    6506           0 :     return d->replaceConversionAndUnref(
    6507             :         proj_create_conversion_tunisia_mapping_grid(
    6508             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    6509           0 :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6510             : }
    6511             : 
    6512             : /************************************************************************/
    6513             : /*                             OSRSetTMG()                              */
    6514             : /************************************************************************/
    6515             : 
    6516           0 : OGRErr OSRSetTMG(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6517             :                  double dfCenterLong, double dfFalseEasting,
    6518             :                  double dfFalseNorthing)
    6519             : 
    6520             : {
    6521           0 :     VALIDATE_POINTER1(hSRS, "OSRSetTMG", OGRERR_FAILURE);
    6522             : 
    6523           0 :     return ToPointer(hSRS)->SetTMG(dfCenterLat, dfCenterLong, dfFalseEasting,
    6524           0 :                                    dfFalseNorthing);
    6525             : }
    6526             : 
    6527             : /************************************************************************/
    6528             : /*                              SetACEA()                               */
    6529             : /************************************************************************/
    6530             : 
    6531          39 : OGRErr OGRSpatialReference::SetACEA(double dfStdP1, double dfStdP2,
    6532             :                                     double dfCenterLat, double dfCenterLong,
    6533             :                                     double dfFalseEasting,
    6534             :                                     double dfFalseNorthing)
    6535             : 
    6536             : {
    6537          78 :     TAKE_OPTIONAL_LOCK();
    6538             : 
    6539             :     // Note different order of parameters. The one in PROJ is conformant with
    6540             :     // EPSG
    6541          39 :     return d->replaceConversionAndUnref(
    6542             :         proj_create_conversion_albers_equal_area(
    6543             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfStdP1, dfStdP2,
    6544          78 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6545             : }
    6546             : 
    6547             : /************************************************************************/
    6548             : /*                             OSRSetACEA()                             */
    6549             : /************************************************************************/
    6550             : 
    6551           0 : OGRErr OSRSetACEA(OGRSpatialReferenceH hSRS, double dfStdP1, double dfStdP2,
    6552             :                   double dfCenterLat, double dfCenterLong,
    6553             :                   double dfFalseEasting, double dfFalseNorthing)
    6554             : 
    6555             : {
    6556           0 :     VALIDATE_POINTER1(hSRS, "OSRSetACEA", OGRERR_FAILURE);
    6557             : 
    6558           0 :     return ToPointer(hSRS)->SetACEA(dfStdP1, dfStdP2, dfCenterLat, dfCenterLong,
    6559           0 :                                     dfFalseEasting, dfFalseNorthing);
    6560             : }
    6561             : 
    6562             : /************************************************************************/
    6563             : /*                               SetAE()                                */
    6564             : /************************************************************************/
    6565             : 
    6566          21 : OGRErr OGRSpatialReference::SetAE(double dfCenterLat, double dfCenterLong,
    6567             :                                   double dfFalseEasting, double dfFalseNorthing)
    6568             : 
    6569             : {
    6570          42 :     TAKE_OPTIONAL_LOCK();
    6571             : 
    6572          21 :     return d->replaceConversionAndUnref(
    6573             :         proj_create_conversion_azimuthal_equidistant(
    6574             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    6575          42 :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6576             : }
    6577             : 
    6578             : /************************************************************************/
    6579             : /*                              OSRSetAE()                              */
    6580             : /************************************************************************/
    6581             : 
    6582           0 : OGRErr OSRSetAE(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6583             :                 double dfCenterLong, double dfFalseEasting,
    6584             :                 double dfFalseNorthing)
    6585             : 
    6586             : {
    6587           0 :     VALIDATE_POINTER1(hSRS, "OSRSetACEA", OGRERR_FAILURE);
    6588             : 
    6589           0 :     return ToPointer(hSRS)->SetAE(dfCenterLat, dfCenterLong, dfFalseEasting,
    6590           0 :                                   dfFalseNorthing);
    6591             : }
    6592             : 
    6593             : /************************************************************************/
    6594             : /*                              SetBonne()                              */
    6595             : /************************************************************************/
    6596             : 
    6597           1 : OGRErr OGRSpatialReference::SetBonne(double dfStdP1, double dfCentralMeridian,
    6598             :                                      double dfFalseEasting,
    6599             :                                      double dfFalseNorthing)
    6600             : 
    6601             : {
    6602           2 :     TAKE_OPTIONAL_LOCK();
    6603             : 
    6604           1 :     return d->replaceConversionAndUnref(proj_create_conversion_bonne(
    6605             :         d->getPROJContext(), dfStdP1, dfCentralMeridian, dfFalseEasting,
    6606           2 :         dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6607             : }
    6608             : 
    6609             : /************************************************************************/
    6610             : /*                            OSRSetBonne()                             */
    6611             : /************************************************************************/
    6612             : 
    6613           0 : OGRErr OSRSetBonne(OGRSpatialReferenceH hSRS, double dfStdP1,
    6614             :                    double dfCentralMeridian, double dfFalseEasting,
    6615             :                    double dfFalseNorthing)
    6616             : 
    6617             : {
    6618           0 :     VALIDATE_POINTER1(hSRS, "OSRSetBonne", OGRERR_FAILURE);
    6619             : 
    6620           0 :     return ToPointer(hSRS)->SetBonne(dfStdP1, dfCentralMeridian, dfFalseEasting,
    6621           0 :                                      dfFalseNorthing);
    6622             : }
    6623             : 
    6624             : /************************************************************************/
    6625             : /*                               SetCEA()                               */
    6626             : /************************************************************************/
    6627             : 
    6628           4 : OGRErr OGRSpatialReference::SetCEA(double dfStdP1, double dfCentralMeridian,
    6629             :                                    double dfFalseEasting,
    6630             :                                    double dfFalseNorthing)
    6631             : 
    6632             : {
    6633           8 :     TAKE_OPTIONAL_LOCK();
    6634             : 
    6635           4 :     return d->replaceConversionAndUnref(
    6636             :         proj_create_conversion_lambert_cylindrical_equal_area(
    6637             :             d->getPROJContext(), dfStdP1, dfCentralMeridian, dfFalseEasting,
    6638           8 :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6639             : }
    6640             : 
    6641             : /************************************************************************/
    6642             : /*                             OSRSetCEA()                              */
    6643             : /************************************************************************/
    6644             : 
    6645           0 : OGRErr OSRSetCEA(OGRSpatialReferenceH hSRS, double dfStdP1,
    6646             :                  double dfCentralMeridian, double dfFalseEasting,
    6647             :                  double dfFalseNorthing)
    6648             : 
    6649             : {
    6650           0 :     VALIDATE_POINTER1(hSRS, "OSRSetCEA", OGRERR_FAILURE);
    6651             : 
    6652           0 :     return ToPointer(hSRS)->SetCEA(dfStdP1, dfCentralMeridian, dfFalseEasting,
    6653           0 :                                    dfFalseNorthing);
    6654             : }
    6655             : 
    6656             : /************************************************************************/
    6657             : /*                               SetCS()                                */
    6658             : /************************************************************************/
    6659             : 
    6660           5 : OGRErr OGRSpatialReference::SetCS(double dfCenterLat, double dfCenterLong,
    6661             :                                   double dfFalseEasting, double dfFalseNorthing)
    6662             : 
    6663             : {
    6664          10 :     TAKE_OPTIONAL_LOCK();
    6665             : 
    6666           5 :     return d->replaceConversionAndUnref(proj_create_conversion_cassini_soldner(
    6667             :         d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    6668          10 :         dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6669             : }
    6670             : 
    6671             : /************************************************************************/
    6672             : /*                              OSRSetCS()                              */
    6673             : /************************************************************************/
    6674             : 
    6675           0 : OGRErr OSRSetCS(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6676             :                 double dfCenterLong, double dfFalseEasting,
    6677             :                 double dfFalseNorthing)
    6678             : 
    6679             : {
    6680           0 :     VALIDATE_POINTER1(hSRS, "OSRSetCS", OGRERR_FAILURE);
    6681             : 
    6682           0 :     return ToPointer(hSRS)->SetCS(dfCenterLat, dfCenterLong, dfFalseEasting,
    6683           0 :                                   dfFalseNorthing);
    6684             : }
    6685             : 
    6686             : /************************************************************************/
    6687             : /*                               SetEC()                                */
    6688             : /************************************************************************/
    6689             : 
    6690           7 : OGRErr OGRSpatialReference::SetEC(double dfStdP1, double dfStdP2,
    6691             :                                   double dfCenterLat, double dfCenterLong,
    6692             :                                   double dfFalseEasting, double dfFalseNorthing)
    6693             : 
    6694             : {
    6695          14 :     TAKE_OPTIONAL_LOCK();
    6696             : 
    6697             :     // Note: different order of arguments
    6698           7 :     return d->replaceConversionAndUnref(
    6699             :         proj_create_conversion_equidistant_conic(
    6700             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfStdP1, dfStdP2,
    6701          14 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6702             : }
    6703             : 
    6704             : /************************************************************************/
    6705             : /*                              OSRSetEC()                              */
    6706             : /************************************************************************/
    6707             : 
    6708           0 : OGRErr OSRSetEC(OGRSpatialReferenceH hSRS, double dfStdP1, double dfStdP2,
    6709             :                 double dfCenterLat, double dfCenterLong, double dfFalseEasting,
    6710             :                 double dfFalseNorthing)
    6711             : 
    6712             : {
    6713           0 :     VALIDATE_POINTER1(hSRS, "OSRSetEC", OGRERR_FAILURE);
    6714             : 
    6715           0 :     return ToPointer(hSRS)->SetEC(dfStdP1, dfStdP2, dfCenterLat, dfCenterLong,
    6716           0 :                                   dfFalseEasting, dfFalseNorthing);
    6717             : }
    6718             : 
    6719             : /************************************************************************/
    6720             : /*                             SetEckert()                              */
    6721             : /************************************************************************/
    6722             : 
    6723          10 : OGRErr OGRSpatialReference::SetEckert(int nVariation,  // 1-6.
    6724             :                                       double dfCentralMeridian,
    6725             :                                       double dfFalseEasting,
    6726             :                                       double dfFalseNorthing)
    6727             : 
    6728             : {
    6729          20 :     TAKE_OPTIONAL_LOCK();
    6730             : 
    6731             :     PJ *conv;
    6732          10 :     if (nVariation == 1)
    6733             :     {
    6734           1 :         conv = proj_create_conversion_eckert_i(
    6735             :             d->getPROJContext(), dfCentralMeridian, dfFalseEasting,
    6736             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6737             :     }
    6738           9 :     else if (nVariation == 2)
    6739             :     {
    6740           1 :         conv = proj_create_conversion_eckert_ii(
    6741             :             d->getPROJContext(), dfCentralMeridian, dfFalseEasting,
    6742             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6743             :     }
    6744           8 :     else if (nVariation == 3)
    6745             :     {
    6746           1 :         conv = proj_create_conversion_eckert_iii(
    6747             :             d->getPROJContext(), dfCentralMeridian, dfFalseEasting,
    6748             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6749             :     }
    6750           7 :     else if (nVariation == 4)
    6751             :     {
    6752           3 :         conv = proj_create_conversion_eckert_iv(
    6753             :             d->getPROJContext(), dfCentralMeridian, dfFalseEasting,
    6754             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6755             :     }
    6756           4 :     else if (nVariation == 5)
    6757             :     {
    6758           1 :         conv = proj_create_conversion_eckert_v(
    6759             :             d->getPROJContext(), dfCentralMeridian, dfFalseEasting,
    6760             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6761             :     }
    6762           3 :     else if (nVariation == 6)
    6763             :     {
    6764           3 :         conv = proj_create_conversion_eckert_vi(
    6765             :             d->getPROJContext(), dfCentralMeridian, dfFalseEasting,
    6766             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    6767             :     }
    6768             :     else
    6769             :     {
    6770           0 :         CPLError(CE_Failure, CPLE_AppDefined,
    6771             :                  "Unsupported Eckert variation (%d).", nVariation);
    6772           0 :         return OGRERR_UNSUPPORTED_SRS;
    6773             :     }
    6774             : 
    6775          10 :     return d->replaceConversionAndUnref(conv);
    6776             : }
    6777             : 
    6778             : /************************************************************************/
    6779             : /*                            OSRSetEckert()                            */
    6780             : /************************************************************************/
    6781             : 
    6782           0 : OGRErr OSRSetEckert(OGRSpatialReferenceH hSRS, int nVariation,
    6783             :                     double dfCentralMeridian, double dfFalseEasting,
    6784             :                     double dfFalseNorthing)
    6785             : 
    6786             : {
    6787           0 :     VALIDATE_POINTER1(hSRS, "OSRSetEckert", OGRERR_FAILURE);
    6788             : 
    6789           0 :     return ToPointer(hSRS)->SetEckert(nVariation, dfCentralMeridian,
    6790           0 :                                       dfFalseEasting, dfFalseNorthing);
    6791             : }
    6792             : 
    6793             : /************************************************************************/
    6794             : /*                            SetEckertIV()                             */
    6795             : /*                                                                      */
    6796             : /*      Deprecated                                                      */
    6797             : /************************************************************************/
    6798             : 
    6799           2 : OGRErr OGRSpatialReference::SetEckertIV(double dfCentralMeridian,
    6800             :                                         double dfFalseEasting,
    6801             :                                         double dfFalseNorthing)
    6802             : 
    6803             : {
    6804           2 :     return SetEckert(4, dfCentralMeridian, dfFalseEasting, dfFalseNorthing);
    6805             : }
    6806             : 
    6807             : /************************************************************************/
    6808             : /*                           OSRSetEckertIV()                           */
    6809             : /************************************************************************/
    6810             : 
    6811           0 : OGRErr OSRSetEckertIV(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    6812             :                       double dfFalseEasting, double dfFalseNorthing)
    6813             : 
    6814             : {
    6815           0 :     VALIDATE_POINTER1(hSRS, "OSRSetEckertIV", OGRERR_FAILURE);
    6816             : 
    6817           0 :     return ToPointer(hSRS)->SetEckertIV(dfCentralMeridian, dfFalseEasting,
    6818           0 :                                         dfFalseNorthing);
    6819             : }
    6820             : 
    6821             : /************************************************************************/
    6822             : /*                            SetEckertVI()                             */
    6823             : /*                                                                      */
    6824             : /*      Deprecated                                                      */
    6825             : /************************************************************************/
    6826             : 
    6827           2 : OGRErr OGRSpatialReference::SetEckertVI(double dfCentralMeridian,
    6828             :                                         double dfFalseEasting,
    6829             :                                         double dfFalseNorthing)
    6830             : 
    6831             : {
    6832           2 :     return SetEckert(6, dfCentralMeridian, dfFalseEasting, dfFalseNorthing);
    6833             : }
    6834             : 
    6835             : /************************************************************************/
    6836             : /*                           OSRSetEckertVI()                           */
    6837             : /************************************************************************/
    6838             : 
    6839           0 : OGRErr OSRSetEckertVI(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    6840             :                       double dfFalseEasting, double dfFalseNorthing)
    6841             : 
    6842             : {
    6843           0 :     VALIDATE_POINTER1(hSRS, "OSRSetEckertVI", OGRERR_FAILURE);
    6844             : 
    6845           0 :     return ToPointer(hSRS)->SetEckertVI(dfCentralMeridian, dfFalseEasting,
    6846           0 :                                         dfFalseNorthing);
    6847             : }
    6848             : 
    6849             : /************************************************************************/
    6850             : /*                         SetEquirectangular()                         */
    6851             : /************************************************************************/
    6852             : 
    6853           2 : OGRErr OGRSpatialReference::SetEquirectangular(double dfCenterLat,
    6854             :                                                double dfCenterLong,
    6855             :                                                double dfFalseEasting,
    6856             :                                                double dfFalseNorthing)
    6857             : 
    6858             : {
    6859           4 :     TAKE_OPTIONAL_LOCK();
    6860             : 
    6861           2 :     if (dfCenterLat == 0.0)
    6862             :     {
    6863           0 :         return d->replaceConversionAndUnref(
    6864             :             proj_create_conversion_equidistant_cylindrical(
    6865             :                 d->getPROJContext(), 0.0, dfCenterLong, dfFalseEasting,
    6866           0 :                 dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6867             :     }
    6868             : 
    6869             :     // Non-standard extension with non-zero latitude of origin
    6870           2 :     SetProjection(SRS_PT_EQUIRECTANGULAR);
    6871           2 :     SetNormProjParm(SRS_PP_LATITUDE_OF_ORIGIN, dfCenterLat);
    6872           2 :     SetNormProjParm(SRS_PP_CENTRAL_MERIDIAN, dfCenterLong);
    6873           2 :     SetNormProjParm(SRS_PP_FALSE_EASTING, dfFalseEasting);
    6874           2 :     SetNormProjParm(SRS_PP_FALSE_NORTHING, dfFalseNorthing);
    6875             : 
    6876           2 :     return OGRERR_NONE;
    6877             : }
    6878             : 
    6879             : /************************************************************************/
    6880             : /*                       OSRSetEquirectangular()                        */
    6881             : /************************************************************************/
    6882             : 
    6883           0 : OGRErr OSRSetEquirectangular(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6884             :                              double dfCenterLong, double dfFalseEasting,
    6885             :                              double dfFalseNorthing)
    6886             : 
    6887             : {
    6888           0 :     VALIDATE_POINTER1(hSRS, "OSRSetEquirectangular", OGRERR_FAILURE);
    6889             : 
    6890           0 :     return ToPointer(hSRS)->SetEquirectangular(dfCenterLat, dfCenterLong,
    6891           0 :                                                dfFalseEasting, dfFalseNorthing);
    6892             : }
    6893             : 
    6894             : /************************************************************************/
    6895             : /*                         SetEquirectangular2()                        */
    6896             : /* Generalized form                                                     */
    6897             : /************************************************************************/
    6898             : 
    6899         179 : OGRErr OGRSpatialReference::SetEquirectangular2(double dfCenterLat,
    6900             :                                                 double dfCenterLong,
    6901             :                                                 double dfStdParallel1,
    6902             :                                                 double dfFalseEasting,
    6903             :                                                 double dfFalseNorthing)
    6904             : 
    6905             : {
    6906         358 :     TAKE_OPTIONAL_LOCK();
    6907             : 
    6908         179 :     if (dfCenterLat == 0.0)
    6909             :     {
    6910         174 :         return d->replaceConversionAndUnref(
    6911             :             proj_create_conversion_equidistant_cylindrical(
    6912             :                 d->getPROJContext(), dfStdParallel1, dfCenterLong,
    6913         174 :                 dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    6914             :     }
    6915             : 
    6916             :     // Non-standard extension with non-zero latitude of origin
    6917           5 :     SetProjection(SRS_PT_EQUIRECTANGULAR);
    6918           5 :     SetNormProjParm(SRS_PP_LATITUDE_OF_ORIGIN, dfCenterLat);
    6919           5 :     SetNormProjParm(SRS_PP_CENTRAL_MERIDIAN, dfCenterLong);
    6920           5 :     SetNormProjParm(SRS_PP_STANDARD_PARALLEL_1, dfStdParallel1);
    6921           5 :     SetNormProjParm(SRS_PP_FALSE_EASTING, dfFalseEasting);
    6922           5 :     SetNormProjParm(SRS_PP_FALSE_NORTHING, dfFalseNorthing);
    6923             : 
    6924           5 :     return OGRERR_NONE;
    6925             : }
    6926             : 
    6927             : /************************************************************************/
    6928             : /*                       OSRSetEquirectangular2()                       */
    6929             : /************************************************************************/
    6930             : 
    6931           3 : OGRErr OSRSetEquirectangular2(OGRSpatialReferenceH hSRS, double dfCenterLat,
    6932             :                               double dfCenterLong, double dfStdParallel1,
    6933             :                               double dfFalseEasting, double dfFalseNorthing)
    6934             : 
    6935             : {
    6936           3 :     VALIDATE_POINTER1(hSRS, "OSRSetEquirectangular2", OGRERR_FAILURE);
    6937             : 
    6938           3 :     return ToPointer(hSRS)->SetEquirectangular2(dfCenterLat, dfCenterLong,
    6939             :                                                 dfStdParallel1, dfFalseEasting,
    6940           3 :                                                 dfFalseNorthing);
    6941             : }
    6942             : 
    6943             : /************************************************************************/
    6944             : /*                               SetGS()                                */
    6945             : /************************************************************************/
    6946             : 
    6947           5 : OGRErr OGRSpatialReference::SetGS(double dfCentralMeridian,
    6948             :                                   double dfFalseEasting, double dfFalseNorthing)
    6949             : 
    6950             : {
    6951           5 :     return d->replaceConversionAndUnref(proj_create_conversion_gall(
    6952             :         d->getPROJContext(), dfCentralMeridian, dfFalseEasting, dfFalseNorthing,
    6953           5 :         nullptr, 0.0, nullptr, 0.0));
    6954             : }
    6955             : 
    6956             : /************************************************************************/
    6957             : /*                              OSRSetGS()                              */
    6958             : /************************************************************************/
    6959             : 
    6960           2 : OGRErr OSRSetGS(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    6961             :                 double dfFalseEasting, double dfFalseNorthing)
    6962             : 
    6963             : {
    6964           2 :     VALIDATE_POINTER1(hSRS, "OSRSetGS", OGRERR_FAILURE);
    6965             : 
    6966           2 :     return ToPointer(hSRS)->SetGS(dfCentralMeridian, dfFalseEasting,
    6967           2 :                                   dfFalseNorthing);
    6968             : }
    6969             : 
    6970             : /************************************************************************/
    6971             : /*                               SetGH()                                */
    6972             : /************************************************************************/
    6973             : 
    6974           0 : OGRErr OGRSpatialReference::SetGH(double dfCentralMeridian,
    6975             :                                   double dfFalseEasting, double dfFalseNorthing)
    6976             : 
    6977             : {
    6978           0 :     TAKE_OPTIONAL_LOCK();
    6979             : 
    6980           0 :     return d->replaceConversionAndUnref(proj_create_conversion_goode_homolosine(
    6981             :         d->getPROJContext(), dfCentralMeridian, dfFalseEasting, dfFalseNorthing,
    6982           0 :         nullptr, 0.0, nullptr, 0.0));
    6983             : }
    6984             : 
    6985             : /************************************************************************/
    6986             : /*                              OSRSetGH()                              */
    6987             : /************************************************************************/
    6988             : 
    6989           0 : OGRErr OSRSetGH(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    6990             :                 double dfFalseEasting, double dfFalseNorthing)
    6991             : 
    6992             : {
    6993           0 :     VALIDATE_POINTER1(hSRS, "OSRSetGH", OGRERR_FAILURE);
    6994             : 
    6995           0 :     return ToPointer(hSRS)->SetGH(dfCentralMeridian, dfFalseEasting,
    6996           0 :                                   dfFalseNorthing);
    6997             : }
    6998             : 
    6999             : /************************************************************************/
    7000             : /*                              SetIGH()                                */
    7001             : /************************************************************************/
    7002             : 
    7003           0 : OGRErr OGRSpatialReference::SetIGH()
    7004             : 
    7005             : {
    7006           0 :     TAKE_OPTIONAL_LOCK();
    7007             : 
    7008           0 :     return d->replaceConversionAndUnref(
    7009             :         proj_create_conversion_interrupted_goode_homolosine(
    7010           0 :             d->getPROJContext(), 0.0, 0.0, 0.0, nullptr, 0.0, nullptr, 0.0));
    7011             : }
    7012             : 
    7013             : /************************************************************************/
    7014             : /*                              OSRSetIGH()                             */
    7015             : /************************************************************************/
    7016             : 
    7017           0 : OGRErr OSRSetIGH(OGRSpatialReferenceH hSRS)
    7018             : 
    7019             : {
    7020           0 :     VALIDATE_POINTER1(hSRS, "OSRSetIGH", OGRERR_FAILURE);
    7021             : 
    7022           0 :     return ToPointer(hSRS)->SetIGH();
    7023             : }
    7024             : 
    7025             : /************************************************************************/
    7026             : /*                              SetGEOS()                               */
    7027             : /************************************************************************/
    7028             : 
    7029           3 : OGRErr OGRSpatialReference::SetGEOS(double dfCentralMeridian,
    7030             :                                     double dfSatelliteHeight,
    7031             :                                     double dfFalseEasting,
    7032             :                                     double dfFalseNorthing)
    7033             : 
    7034             : {
    7035           6 :     TAKE_OPTIONAL_LOCK();
    7036             : 
    7037           3 :     return d->replaceConversionAndUnref(
    7038             :         proj_create_conversion_geostationary_satellite_sweep_y(
    7039             :             d->getPROJContext(), dfCentralMeridian, dfSatelliteHeight,
    7040           6 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    7041             : }
    7042             : 
    7043             : /************************************************************************/
    7044             : /*                              OSRSetGEOS()                             */
    7045             : /************************************************************************/
    7046             : 
    7047           0 : OGRErr OSRSetGEOS(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    7048             :                   double dfSatelliteHeight, double dfFalseEasting,
    7049             :                   double dfFalseNorthing)
    7050             : 
    7051             : {
    7052           0 :     VALIDATE_POINTER1(hSRS, "OSRSetGEOS", OGRERR_FAILURE);
    7053             : 
    7054           0 :     return ToPointer(hSRS)->SetGEOS(dfCentralMeridian, dfSatelliteHeight,
    7055           0 :                                     dfFalseEasting, dfFalseNorthing);
    7056             : }
    7057             : 
    7058             : /************************************************************************/
    7059             : /*                       SetGaussSchreiberTMercator()                   */
    7060             : /************************************************************************/
    7061             : 
    7062           0 : OGRErr OGRSpatialReference::SetGaussSchreiberTMercator(double dfCenterLat,
    7063             :                                                        double dfCenterLong,
    7064             :                                                        double dfScale,
    7065             :                                                        double dfFalseEasting,
    7066             :                                                        double dfFalseNorthing)
    7067             : 
    7068             : {
    7069           0 :     TAKE_OPTIONAL_LOCK();
    7070             : 
    7071           0 :     return d->replaceConversionAndUnref(
    7072             :         proj_create_conversion_gauss_schreiber_transverse_mercator(
    7073             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfScale,
    7074           0 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    7075             : }
    7076             : 
    7077             : /************************************************************************/
    7078             : /*                     OSRSetGaussSchreiberTMercator()                  */
    7079             : /************************************************************************/
    7080             : 
    7081           0 : OGRErr OSRSetGaussSchreiberTMercator(OGRSpatialReferenceH hSRS,
    7082             :                                      double dfCenterLat, double dfCenterLong,
    7083             :                                      double dfScale, double dfFalseEasting,
    7084             :                                      double dfFalseNorthing)
    7085             : 
    7086             : {
    7087           0 :     VALIDATE_POINTER1(hSRS, "OSRSetGaussSchreiberTMercator", OGRERR_FAILURE);
    7088             : 
    7089           0 :     return ToPointer(hSRS)->SetGaussSchreiberTMercator(
    7090           0 :         dfCenterLat, dfCenterLong, dfScale, dfFalseEasting, dfFalseNorthing);
    7091             : }
    7092             : 
    7093             : /************************************************************************/
    7094             : /*                            SetGnomonic()                             */
    7095             : /************************************************************************/
    7096             : 
    7097           2 : OGRErr OGRSpatialReference::SetGnomonic(double dfCenterLat, double dfCenterLong,
    7098             :                                         double dfFalseEasting,
    7099             :                                         double dfFalseNorthing)
    7100             : 
    7101             : {
    7102           4 :     TAKE_OPTIONAL_LOCK();
    7103             : 
    7104           2 :     return d->replaceConversionAndUnref(proj_create_conversion_gnomonic(
    7105             :         d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    7106           4 :         dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    7107             : }
    7108             : 
    7109             : /************************************************************************/
    7110             : /*                           OSRSetGnomonic()                           */
    7111             : /************************************************************************/
    7112             : 
    7113           0 : OGRErr OSRSetGnomonic(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7114             :                       double dfCenterLong, double dfFalseEasting,
    7115             :                       double dfFalseNorthing)
    7116             : 
    7117             : {
    7118           0 :     VALIDATE_POINTER1(hSRS, "OSRSetGnomonic", OGRERR_FAILURE);
    7119             : 
    7120           0 :     return ToPointer(hSRS)->SetGnomonic(dfCenterLat, dfCenterLong,
    7121           0 :                                         dfFalseEasting, dfFalseNorthing);
    7122             : }
    7123             : 
    7124             : /************************************************************************/
    7125             : /*                              SetHOMAC()                              */
    7126             : /************************************************************************/
    7127             : 
    7128             : /**
    7129             :  * \brief Set an Hotine Oblique Mercator Azimuth Center projection using
    7130             :  * azimuth angle.
    7131             :  *
    7132             :  * This projection corresponds to EPSG projection method 9815, also
    7133             :  * sometimes known as hotine oblique mercator (variant B).
    7134             :  *
    7135             :  * This method does the same thing as the C function OSRSetHOMAC().
    7136             :  *
    7137             :  * @param dfCenterLat Latitude of the projection origin.
    7138             :  * @param dfCenterLong Longitude of the projection origin.
    7139             :  * @param dfAzimuth Azimuth, measured clockwise from North, of the projection
    7140             :  * centerline.
    7141             :  * @param dfRectToSkew Angle from Rectified to Skew Grid
    7142             :  * @param dfScale Scale factor applies to the projection origin.
    7143             :  * @param dfFalseEasting False easting.
    7144             :  * @param dfFalseNorthing False northing.
    7145             :  *
    7146             :  * @return OGRERR_NONE on success.
    7147             :  */
    7148             : 
    7149           4 : OGRErr OGRSpatialReference::SetHOMAC(double dfCenterLat, double dfCenterLong,
    7150             :                                      double dfAzimuth, double dfRectToSkew,
    7151             :                                      double dfScale, double dfFalseEasting,
    7152             :                                      double dfFalseNorthing)
    7153             : 
    7154             : {
    7155           8 :     TAKE_OPTIONAL_LOCK();
    7156             : 
    7157           4 :     return d->replaceConversionAndUnref(
    7158             :         proj_create_conversion_hotine_oblique_mercator_variant_b(
    7159             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfAzimuth,
    7160             :             dfRectToSkew, dfScale, dfFalseEasting, dfFalseNorthing, nullptr,
    7161           8 :             0.0, nullptr, 0.0));
    7162             : }
    7163             : 
    7164             : /************************************************************************/
    7165             : /*                            OSRSetHOMAC()                             */
    7166             : /************************************************************************/
    7167             : 
    7168             : /**
    7169             :  * \brief Set an Oblique Mercator projection using azimuth angle.
    7170             :  *
    7171             :  * This is the same as the C++ method OGRSpatialReference::SetHOMAC()
    7172             :  */
    7173           0 : OGRErr OSRSetHOMAC(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7174             :                    double dfCenterLong, double dfAzimuth, double dfRectToSkew,
    7175             :                    double dfScale, double dfFalseEasting,
    7176             :                    double dfFalseNorthing)
    7177             : 
    7178             : {
    7179           0 :     VALIDATE_POINTER1(hSRS, "OSRSetHOMAC", OGRERR_FAILURE);
    7180             : 
    7181           0 :     return ToPointer(hSRS)->SetHOMAC(dfCenterLat, dfCenterLong, dfAzimuth,
    7182             :                                      dfRectToSkew, dfScale, dfFalseEasting,
    7183           0 :                                      dfFalseNorthing);
    7184             : }
    7185             : 
    7186             : /************************************************************************/
    7187             : /*                               SetHOM()                               */
    7188             : /************************************************************************/
    7189             : 
    7190             : /**
    7191             :  * \brief Set a Hotine Oblique Mercator projection using azimuth angle.
    7192             :  *
    7193             :  * This projection corresponds to EPSG projection method 9812, also
    7194             :  * sometimes known as hotine oblique mercator (variant A)..
    7195             :  *
    7196             :  * This method does the same thing as the C function OSRSetHOM().
    7197             :  *
    7198             :  * @param dfCenterLat Latitude of the projection origin.
    7199             :  * @param dfCenterLong Longitude of the projection origin.
    7200             :  * @param dfAzimuth Azimuth, measured clockwise from North, of the projection
    7201             :  * centerline.
    7202             :  * @param dfRectToSkew Angle from Rectified to Skew Grid
    7203             :  * @param dfScale Scale factor applies to the projection origin.
    7204             :  * @param dfFalseEasting False easting.
    7205             :  * @param dfFalseNorthing False northing.
    7206             :  *
    7207             :  * @return OGRERR_NONE on success.
    7208             :  */
    7209             : 
    7210          13 : OGRErr OGRSpatialReference::SetHOM(double dfCenterLat, double dfCenterLong,
    7211             :                                    double dfAzimuth, double dfRectToSkew,
    7212             :                                    double dfScale, double dfFalseEasting,
    7213             :                                    double dfFalseNorthing)
    7214             : 
    7215             : {
    7216          26 :     TAKE_OPTIONAL_LOCK();
    7217             : 
    7218          13 :     return d->replaceConversionAndUnref(
    7219             :         proj_create_conversion_hotine_oblique_mercator_variant_a(
    7220             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfAzimuth,
    7221             :             dfRectToSkew, dfScale, dfFalseEasting, dfFalseNorthing, nullptr,
    7222          26 :             0.0, nullptr, 0.0));
    7223             : }
    7224             : 
    7225             : /************************************************************************/
    7226             : /*                             OSRSetHOM()                              */
    7227             : /************************************************************************/
    7228             : /**
    7229             :  * \brief Set a Hotine Oblique Mercator projection using azimuth angle.
    7230             :  *
    7231             :  * This is the same as the C++ method OGRSpatialReference::SetHOM()
    7232             :  */
    7233           0 : OGRErr OSRSetHOM(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7234             :                  double dfCenterLong, double dfAzimuth, double dfRectToSkew,
    7235             :                  double dfScale, double dfFalseEasting, double dfFalseNorthing)
    7236             : 
    7237             : {
    7238           0 :     VALIDATE_POINTER1(hSRS, "OSRSetHOM", OGRERR_FAILURE);
    7239             : 
    7240           0 :     return ToPointer(hSRS)->SetHOM(dfCenterLat, dfCenterLong, dfAzimuth,
    7241             :                                    dfRectToSkew, dfScale, dfFalseEasting,
    7242           0 :                                    dfFalseNorthing);
    7243             : }
    7244             : 
    7245             : /************************************************************************/
    7246             : /*                             SetHOM2PNO()                             */
    7247             : /************************************************************************/
    7248             : 
    7249             : /**
    7250             :  * \brief Set a Hotine Oblique Mercator projection using two points on
    7251             :  * projection centerline.
    7252             :  *
    7253             :  * This method does the same thing as the C function OSRSetHOM2PNO().
    7254             :  *
    7255             :  * @param dfCenterLat Latitude of the projection origin.
    7256             :  * @param dfLat1 Latitude of the first point on center line.
    7257             :  * @param dfLong1 Longitude of the first point on center line.
    7258             :  * @param dfLat2 Latitude of the second point on center line.
    7259             :  * @param dfLong2 Longitude of the second point on center line.
    7260             :  * @param dfScale Scale factor applies to the projection origin.
    7261             :  * @param dfFalseEasting False easting.
    7262             :  * @param dfFalseNorthing False northing.
    7263             :  *
    7264             :  * @return OGRERR_NONE on success.
    7265             :  */
    7266             : 
    7267           3 : OGRErr OGRSpatialReference::SetHOM2PNO(double dfCenterLat, double dfLat1,
    7268             :                                        double dfLong1, double dfLat2,
    7269             :                                        double dfLong2, double dfScale,
    7270             :                                        double dfFalseEasting,
    7271             :                                        double dfFalseNorthing)
    7272             : 
    7273             : {
    7274           6 :     TAKE_OPTIONAL_LOCK();
    7275             : 
    7276           3 :     return d->replaceConversionAndUnref(
    7277             :         proj_create_conversion_hotine_oblique_mercator_two_point_natural_origin(
    7278             :             d->getPROJContext(), dfCenterLat, dfLat1, dfLong1, dfLat2, dfLong2,
    7279             :             dfScale, dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr,
    7280           6 :             0.0));
    7281             : }
    7282             : 
    7283             : /************************************************************************/
    7284             : /*                           OSRSetHOM2PNO()                            */
    7285             : /************************************************************************/
    7286             : /**
    7287             :  * \brief Set a Hotine Oblique Mercator projection using two points on
    7288             :  *  projection centerline.
    7289             :  *
    7290             :  * This is the same as the C++ method OGRSpatialReference::SetHOM2PNO()
    7291             :  */
    7292           0 : OGRErr OSRSetHOM2PNO(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7293             :                      double dfLat1, double dfLong1, double dfLat2,
    7294             :                      double dfLong2, double dfScale, double dfFalseEasting,
    7295             :                      double dfFalseNorthing)
    7296             : 
    7297             : {
    7298           0 :     VALIDATE_POINTER1(hSRS, "OSRSetHOM2PNO", OGRERR_FAILURE);
    7299             : 
    7300           0 :     return ToPointer(hSRS)->SetHOM2PNO(dfCenterLat, dfLat1, dfLong1, dfLat2,
    7301             :                                        dfLong2, dfScale, dfFalseEasting,
    7302           0 :                                        dfFalseNorthing);
    7303             : }
    7304             : 
    7305             : /************************************************************************/
    7306             : /*                               SetLOM()                               */
    7307             : /************************************************************************/
    7308             : 
    7309             : /**
    7310             :  * \brief Set a Laborde Oblique Mercator projection.
    7311             :  *
    7312             :  * @param dfCenterLat Latitude of the projection origin.
    7313             :  * @param dfCenterLong Longitude of the projection origin.
    7314             :  * @param dfAzimuth Azimuth, measured clockwise from North, of the projection
    7315             :  * centerline.
    7316             :  * @param dfScale Scale factor on the initial line
    7317             :  * @param dfFalseEasting False easting.
    7318             :  * @param dfFalseNorthing False northing.
    7319             :  *
    7320             :  * @return OGRERR_NONE on success.
    7321             :  */
    7322             : 
    7323           0 : OGRErr OGRSpatialReference::SetLOM(double dfCenterLat, double dfCenterLong,
    7324             :                                    double dfAzimuth, double dfScale,
    7325             :                                    double dfFalseEasting,
    7326             :                                    double dfFalseNorthing)
    7327             : 
    7328             : {
    7329           0 :     TAKE_OPTIONAL_LOCK();
    7330             : 
    7331           0 :     return d->replaceConversionAndUnref(
    7332             :         proj_create_conversion_laborde_oblique_mercator(
    7333             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfAzimuth, dfScale,
    7334           0 :             dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    7335             : }
    7336             : 
    7337             : /************************************************************************/
    7338             : /*                            SetIWMPolyconic()                         */
    7339             : /************************************************************************/
    7340             : 
    7341           0 : OGRErr OGRSpatialReference::SetIWMPolyconic(double dfLat1, double dfLat2,
    7342             :                                             double dfCenterLong,
    7343             :                                             double dfFalseEasting,
    7344             :                                             double dfFalseNorthing)
    7345             : 
    7346             : {
    7347           0 :     TAKE_OPTIONAL_LOCK();
    7348             : 
    7349           0 :     return d->replaceConversionAndUnref(
    7350             :         proj_create_conversion_international_map_world_polyconic(
    7351             :             d->getPROJContext(), dfCenterLong, dfLat1, dfLat2, dfFalseEasting,
    7352           0 :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0));
    7353             : }
    7354             : 
    7355             : /************************************************************************/
    7356             : /*                          OSRSetIWMPolyconic()                        */
    7357             : /************************************************************************/
    7358             : 
    7359           0 : OGRErr OSRSetIWMPolyconic(OGRSpatialReferenceH hSRS, double dfLat1,
    7360             :                           double dfLat2, double dfCenterLong,
    7361             :                           double dfFalseEasting, double dfFalseNorthing)
    7362             : 
    7363             : {
    7364           0 :     VALIDATE_POINTER1(hSRS, "OSRSetIWMPolyconic", OGRERR_FAILURE);
    7365             : 
    7366           0 :     return ToPointer(hSRS)->SetIWMPolyconic(dfLat1, dfLat2, dfCenterLong,
    7367           0 :                                             dfFalseEasting, dfFalseNorthing);
    7368             : }
    7369             : 
    7370             : /************************************************************************/
    7371             : /*                             SetKrovak()                              */
    7372             : /************************************************************************/
    7373             : 
    7374             : /** Krovak east-north projection.
    7375             :  *
    7376             :  * Note that dfAzimuth and dfPseudoStdParallel1 are ignored when exporting
    7377             :  * to PROJ and should be respectively set to 30.28813972222222 and 78.5
    7378             :  */
    7379           3 : OGRErr OGRSpatialReference::SetKrovak(double dfCenterLat, double dfCenterLong,
    7380             :                                       double dfAzimuth,
    7381             :                                       double dfPseudoStdParallel1,
    7382             :                                       double dfScale, double dfFalseEasting,
    7383             :                                       double dfFalseNorthing)
    7384             : 
    7385             : {
    7386           6 :     TAKE_OPTIONAL_LOCK();
    7387             : 
    7388           3 :     return d->replaceConversionAndUnref(
    7389             :         proj_create_conversion_krovak_north_oriented(
    7390             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfAzimuth,
    7391             :             dfPseudoStdParallel1, dfScale, dfFalseEasting, dfFalseNorthing,
    7392           6 :             nullptr, 0.0, nullptr, 0.0));
    7393             : }
    7394             : 
    7395             : /************************************************************************/
    7396             : /*                            OSRSetKrovak()                            */
    7397             : /************************************************************************/
    7398             : 
    7399           0 : OGRErr OSRSetKrovak(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7400             :                     double dfCenterLong, double dfAzimuth,
    7401             :                     double dfPseudoStdParallel1, double dfScale,
    7402             :                     double dfFalseEasting, double dfFalseNorthing)
    7403             : 
    7404             : {
    7405           0 :     VALIDATE_POINTER1(hSRS, "OSRSetKrovak", OGRERR_FAILURE);
    7406             : 
    7407           0 :     return ToPointer(hSRS)->SetKrovak(dfCenterLat, dfCenterLong, dfAzimuth,
    7408             :                                       dfPseudoStdParallel1, dfScale,
    7409           0 :                                       dfFalseEasting, dfFalseNorthing);
    7410             : }
    7411             : 
    7412             : /************************************************************************/
    7413             : /*                              SetLAEA()                               */
    7414             : /************************************************************************/
    7415             : 
    7416          17 : OGRErr OGRSpatialReference::SetLAEA(double dfCenterLat, double dfCenterLong,
    7417             :                                     double dfFalseEasting,
    7418             :                                     double dfFalseNorthing)
    7419             : 
    7420             : {
    7421          34 :     TAKE_OPTIONAL_LOCK();
    7422             : 
    7423          17 :     auto conv = proj_create_conversion_lambert_azimuthal_equal_area(
    7424             :         d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    7425             :         dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    7426             : 
    7427          17 :     const char *pszName = nullptr;
    7428          17 :     double dfConvFactor = GetTargetLinearUnits(nullptr, &pszName);
    7429          17 :     CPLString osName = pszName ? pszName : "";
    7430             : 
    7431          17 :     d->refreshProjObj();
    7432             : 
    7433          17 :     d->demoteFromBoundCRS();
    7434             : 
    7435          17 :     auto cs = proj_create_cartesian_2D_cs(
    7436             :         d->getPROJContext(),
    7437          17 :         std::fabs(dfCenterLat - 90) < 1e-10 && dfCenterLong == 0
    7438             :             ? PJ_CART2D_NORTH_POLE_EASTING_SOUTH_NORTHING_SOUTH
    7439           0 :         : std::fabs(dfCenterLat - -90) < 1e-10 && dfCenterLong == 0
    7440          14 :             ? PJ_CART2D_SOUTH_POLE_EASTING_NORTH_NORTHING_NORTH
    7441             :             : PJ_CART2D_EASTING_NORTHING,
    7442          17 :         !osName.empty() ? osName.c_str() : nullptr, dfConvFactor);
    7443             :     auto projCRS =
    7444          17 :         proj_create_projected_crs(d->getPROJContext(), d->getProjCRSName(),
    7445          17 :                                   d->getGeodBaseCRS(), conv, cs);
    7446          17 :     proj_destroy(conv);
    7447          17 :     proj_destroy(cs);
    7448             : 
    7449          17 :     d->setPjCRS(projCRS);
    7450             : 
    7451          17 :     d->undoDemoteFromBoundCRS();
    7452             : 
    7453          34 :     return OGRERR_NONE;
    7454             : }
    7455             : 
    7456             : /************************************************************************/
    7457             : /*                             OSRSetLAEA()                             */
    7458             : /************************************************************************/
    7459             : 
    7460           0 : OGRErr OSRSetLAEA(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7461             :                   double dfCenterLong, double dfFalseEasting,
    7462             :                   double dfFalseNorthing)
    7463             : 
    7464             : {
    7465           0 :     VALIDATE_POINTER1(hSRS, "OSRSetLAEA", OGRERR_FAILURE);
    7466             : 
    7467           0 :     return ToPointer(hSRS)->SetLAEA(dfCenterLat, dfCenterLong, dfFalseEasting,
    7468           0 :                                     dfFalseNorthing);
    7469             : }
    7470             : 
    7471             : /************************************************************************/
    7472             : /*                               SetLCC()                               */
    7473             : /************************************************************************/
    7474             : 
    7475         148 : OGRErr OGRSpatialReference::SetLCC(double dfStdP1, double dfStdP2,
    7476             :                                    double dfCenterLat, double dfCenterLong,
    7477             :                                    double dfFalseEasting,
    7478             :                                    double dfFalseNorthing)
    7479             : 
    7480             : {
    7481         296 :     TAKE_OPTIONAL_LOCK();
    7482             : 
    7483         148 :     return d->replaceConversionAndUnref(
    7484             :         proj_create_conversion_lambert_conic_conformal_2sp(
    7485             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfStdP1, dfStdP2,
    7486         296 :             dfFalseEasting, dfFalseNorthing, nullptr, 0, nullptr, 0));
    7487             : }
    7488             : 
    7489             : /************************************************************************/
    7490             : /*                             OSRSetLCC()                              */
    7491             : /************************************************************************/
    7492             : 
    7493           1 : OGRErr OSRSetLCC(OGRSpatialReferenceH hSRS, double dfStdP1, double dfStdP2,
    7494             :                  double dfCenterLat, double dfCenterLong, double dfFalseEasting,
    7495             :                  double dfFalseNorthing)
    7496             : 
    7497             : {
    7498           1 :     VALIDATE_POINTER1(hSRS, "OSRSetLCC", OGRERR_FAILURE);
    7499             : 
    7500           1 :     return ToPointer(hSRS)->SetLCC(dfStdP1, dfStdP2, dfCenterLat, dfCenterLong,
    7501           1 :                                    dfFalseEasting, dfFalseNorthing);
    7502             : }
    7503             : 
    7504             : /************************************************************************/
    7505             : /*                             SetLCC1SP()                              */
    7506             : /************************************************************************/
    7507             : 
    7508          10 : OGRErr OGRSpatialReference::SetLCC1SP(double dfCenterLat, double dfCenterLong,
    7509             :                                       double dfScale, double dfFalseEasting,
    7510             :                                       double dfFalseNorthing)
    7511             : 
    7512             : {
    7513          20 :     TAKE_OPTIONAL_LOCK();
    7514             : 
    7515          10 :     return d->replaceConversionAndUnref(
    7516             :         proj_create_conversion_lambert_conic_conformal_1sp(
    7517             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfScale,
    7518          20 :             dfFalseEasting, dfFalseNorthing, nullptr, 0, nullptr, 0));
    7519             : }
    7520             : 
    7521             : /************************************************************************/
    7522             : /*                            OSRSetLCC1SP()                            */
    7523             : /************************************************************************/
    7524             : 
    7525           0 : OGRErr OSRSetLCC1SP(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7526             :                     double dfCenterLong, double dfScale, double dfFalseEasting,
    7527             :                     double dfFalseNorthing)
    7528             : 
    7529             : {
    7530           0 :     VALIDATE_POINTER1(hSRS, "OSRSetLCC1SP", OGRERR_FAILURE);
    7531             : 
    7532           0 :     return ToPointer(hSRS)->SetLCC1SP(dfCenterLat, dfCenterLong, dfScale,
    7533           0 :                                       dfFalseEasting, dfFalseNorthing);
    7534             : }
    7535             : 
    7536             : /************************************************************************/
    7537             : /*                              SetLCCB()                               */
    7538             : /************************************************************************/
    7539             : 
    7540           2 : OGRErr OGRSpatialReference::SetLCCB(double dfStdP1, double dfStdP2,
    7541             :                                     double dfCenterLat, double dfCenterLong,
    7542             :                                     double dfFalseEasting,
    7543             :                                     double dfFalseNorthing)
    7544             : 
    7545             : {
    7546           4 :     TAKE_OPTIONAL_LOCK();
    7547             : 
    7548           2 :     return d->replaceConversionAndUnref(
    7549             :         proj_create_conversion_lambert_conic_conformal_2sp_belgium(
    7550             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfStdP1, dfStdP2,
    7551           4 :             dfFalseEasting, dfFalseNorthing, nullptr, 0, nullptr, 0));
    7552             : }
    7553             : 
    7554             : /************************************************************************/
    7555             : /*                             OSRSetLCCB()                             */
    7556             : /************************************************************************/
    7557             : 
    7558           0 : OGRErr OSRSetLCCB(OGRSpatialReferenceH hSRS, double dfStdP1, double dfStdP2,
    7559             :                   double dfCenterLat, double dfCenterLong,
    7560             :                   double dfFalseEasting, double dfFalseNorthing)
    7561             : 
    7562             : {
    7563           0 :     VALIDATE_POINTER1(hSRS, "OSRSetLCCB", OGRERR_FAILURE);
    7564             : 
    7565           0 :     return ToPointer(hSRS)->SetLCCB(dfStdP1, dfStdP2, dfCenterLat, dfCenterLong,
    7566           0 :                                     dfFalseEasting, dfFalseNorthing);
    7567             : }
    7568             : 
    7569             : /************************************************************************/
    7570             : /*                               SetMC()                                */
    7571             : /************************************************************************/
    7572             : 
    7573           4 : OGRErr OGRSpatialReference::SetMC(double dfCenterLat, double dfCenterLong,
    7574             :                                   double dfFalseEasting, double dfFalseNorthing)
    7575             : 
    7576             : {
    7577           8 :     TAKE_OPTIONAL_LOCK();
    7578             : 
    7579             :     (void)dfCenterLat;  // ignored
    7580             : 
    7581           4 :     return d->replaceConversionAndUnref(
    7582             :         proj_create_conversion_miller_cylindrical(
    7583             :             d->getPROJContext(), dfCenterLong, dfFalseEasting, dfFalseNorthing,
    7584           8 :             nullptr, 0, nullptr, 0));
    7585             : }
    7586             : 
    7587             : /************************************************************************/
    7588             : /*                              OSRSetMC()                              */
    7589             : /************************************************************************/
    7590             : 
    7591           0 : OGRErr OSRSetMC(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7592             :                 double dfCenterLong, double dfFalseEasting,
    7593             :                 double dfFalseNorthing)
    7594             : 
    7595             : {
    7596           0 :     VALIDATE_POINTER1(hSRS, "OSRSetMC", OGRERR_FAILURE);
    7597             : 
    7598           0 :     return ToPointer(hSRS)->SetMC(dfCenterLat, dfCenterLong, dfFalseEasting,
    7599           0 :                                   dfFalseNorthing);
    7600             : }
    7601             : 
    7602             : /************************************************************************/
    7603             : /*                            SetMercator()                             */
    7604             : /************************************************************************/
    7605             : 
    7606          59 : OGRErr OGRSpatialReference::SetMercator(double dfCenterLat, double dfCenterLong,
    7607             :                                         double dfScale, double dfFalseEasting,
    7608             :                                         double dfFalseNorthing)
    7609             : 
    7610             : {
    7611         118 :     TAKE_OPTIONAL_LOCK();
    7612             : 
    7613          59 :     if (dfCenterLat != 0.0 && dfScale == 1.0)
    7614             :     {
    7615             :         // Not sure this is correct, but this is how it has been used
    7616             :         // historically
    7617           0 :         return SetMercator2SP(dfCenterLat, 0.0, dfCenterLong, dfFalseEasting,
    7618           0 :                               dfFalseNorthing);
    7619             :     }
    7620          59 :     return d->replaceConversionAndUnref(
    7621             :         proj_create_conversion_mercator_variant_a(
    7622             :             d->getPROJContext(),
    7623             :             dfCenterLat,  // should be zero
    7624             :             dfCenterLong, dfScale, dfFalseEasting, dfFalseNorthing, nullptr, 0,
    7625          59 :             nullptr, 0));
    7626             : }
    7627             : 
    7628             : /************************************************************************/
    7629             : /*                           OSRSetMercator()                           */
    7630             : /************************************************************************/
    7631             : 
    7632           2 : OGRErr OSRSetMercator(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7633             :                       double dfCenterLong, double dfScale,
    7634             :                       double dfFalseEasting, double dfFalseNorthing)
    7635             : 
    7636             : {
    7637           2 :     VALIDATE_POINTER1(hSRS, "OSRSetMercator", OGRERR_FAILURE);
    7638             : 
    7639           2 :     return ToPointer(hSRS)->SetMercator(dfCenterLat, dfCenterLong, dfScale,
    7640           2 :                                         dfFalseEasting, dfFalseNorthing);
    7641             : }
    7642             : 
    7643             : /************************************************************************/
    7644             : /*                           SetMercator2SP()                           */
    7645             : /************************************************************************/
    7646             : 
    7647          31 : OGRErr OGRSpatialReference::SetMercator2SP(double dfStdP1, double dfCenterLat,
    7648             :                                            double dfCenterLong,
    7649             :                                            double dfFalseEasting,
    7650             :                                            double dfFalseNorthing)
    7651             : 
    7652             : {
    7653          31 :     if (dfCenterLat == 0.0)
    7654             :     {
    7655          30 :         return d->replaceConversionAndUnref(
    7656             :             proj_create_conversion_mercator_variant_b(
    7657             :                 d->getPROJContext(), dfStdP1, dfCenterLong, dfFalseEasting,
    7658          30 :                 dfFalseNorthing, nullptr, 0, nullptr, 0));
    7659             :     }
    7660             : 
    7661           1 :     TAKE_OPTIONAL_LOCK();
    7662             : 
    7663           1 :     SetProjection(SRS_PT_MERCATOR_2SP);
    7664             : 
    7665           1 :     SetNormProjParm(SRS_PP_STANDARD_PARALLEL_1, dfStdP1);
    7666           1 :     SetNormProjParm(SRS_PP_LATITUDE_OF_ORIGIN, dfCenterLat);
    7667           1 :     SetNormProjParm(SRS_PP_CENTRAL_MERIDIAN, dfCenterLong);
    7668           1 :     SetNormProjParm(SRS_PP_FALSE_EASTING, dfFalseEasting);
    7669           1 :     SetNormProjParm(SRS_PP_FALSE_NORTHING, dfFalseNorthing);
    7670             : 
    7671           1 :     return OGRERR_NONE;
    7672             : }
    7673             : 
    7674             : /************************************************************************/
    7675             : /*                         OSRSetMercator2SP()                          */
    7676             : /************************************************************************/
    7677             : 
    7678           1 : OGRErr OSRSetMercator2SP(OGRSpatialReferenceH hSRS, double dfStdP1,
    7679             :                          double dfCenterLat, double dfCenterLong,
    7680             :                          double dfFalseEasting, double dfFalseNorthing)
    7681             : 
    7682             : {
    7683           1 :     VALIDATE_POINTER1(hSRS, "OSRSetMercator2SP", OGRERR_FAILURE);
    7684             : 
    7685           1 :     return ToPointer(hSRS)->SetMercator2SP(dfStdP1, dfCenterLat, dfCenterLong,
    7686           1 :                                            dfFalseEasting, dfFalseNorthing);
    7687             : }
    7688             : 
    7689             : /************************************************************************/
    7690             : /*                            SetMollweide()                            */
    7691             : /************************************************************************/
    7692             : 
    7693           3 : OGRErr OGRSpatialReference::SetMollweide(double dfCentralMeridian,
    7694             :                                          double dfFalseEasting,
    7695             :                                          double dfFalseNorthing)
    7696             : 
    7697             : {
    7698           6 :     TAKE_OPTIONAL_LOCK();
    7699             : 
    7700           3 :     return d->replaceConversionAndUnref(proj_create_conversion_mollweide(
    7701             :         d->getPROJContext(), dfCentralMeridian, dfFalseEasting, dfFalseNorthing,
    7702           6 :         nullptr, 0, nullptr, 0));
    7703             : }
    7704             : 
    7705             : /************************************************************************/
    7706             : /*                          OSRSetMollweide()                           */
    7707             : /************************************************************************/
    7708             : 
    7709           0 : OGRErr OSRSetMollweide(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    7710             :                        double dfFalseEasting, double dfFalseNorthing)
    7711             : 
    7712             : {
    7713           0 :     VALIDATE_POINTER1(hSRS, "OSRSetMollweide", OGRERR_FAILURE);
    7714             : 
    7715           0 :     return ToPointer(hSRS)->SetMollweide(dfCentralMeridian, dfFalseEasting,
    7716           0 :                                          dfFalseNorthing);
    7717             : }
    7718             : 
    7719             : /************************************************************************/
    7720             : /*                              SetNZMG()                               */
    7721             : /************************************************************************/
    7722             : 
    7723           7 : OGRErr OGRSpatialReference::SetNZMG(double dfCenterLat, double dfCenterLong,
    7724             :                                     double dfFalseEasting,
    7725             :                                     double dfFalseNorthing)
    7726             : 
    7727             : {
    7728          14 :     TAKE_OPTIONAL_LOCK();
    7729             : 
    7730           7 :     return d->replaceConversionAndUnref(
    7731             :         proj_create_conversion_new_zealand_mapping_grid(
    7732             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    7733          14 :             dfFalseNorthing, nullptr, 0, nullptr, 0));
    7734             : }
    7735             : 
    7736             : /************************************************************************/
    7737             : /*                             OSRSetNZMG()                             */
    7738             : /************************************************************************/
    7739             : 
    7740           0 : OGRErr OSRSetNZMG(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7741             :                   double dfCenterLong, double dfFalseEasting,
    7742             :                   double dfFalseNorthing)
    7743             : 
    7744             : {
    7745           0 :     VALIDATE_POINTER1(hSRS, "OSRSetNZMG", OGRERR_FAILURE);
    7746             : 
    7747           0 :     return ToPointer(hSRS)->SetNZMG(dfCenterLat, dfCenterLong, dfFalseEasting,
    7748           0 :                                     dfFalseNorthing);
    7749             : }
    7750             : 
    7751             : /************************************************************************/
    7752             : /*                               SetOS()                                */
    7753             : /************************************************************************/
    7754             : 
    7755           6 : OGRErr OGRSpatialReference::SetOS(double dfOriginLat, double dfCMeridian,
    7756             :                                   double dfScale, double dfFalseEasting,
    7757             :                                   double dfFalseNorthing)
    7758             : 
    7759             : {
    7760          12 :     TAKE_OPTIONAL_LOCK();
    7761             : 
    7762           6 :     return d->replaceConversionAndUnref(
    7763             :         proj_create_conversion_oblique_stereographic(
    7764             :             d->getPROJContext(), dfOriginLat, dfCMeridian, dfScale,
    7765          12 :             dfFalseEasting, dfFalseNorthing, nullptr, 0, nullptr, 0));
    7766             : }
    7767             : 
    7768             : /************************************************************************/
    7769             : /*                              OSRSetOS()                              */
    7770             : /************************************************************************/
    7771             : 
    7772           0 : OGRErr OSRSetOS(OGRSpatialReferenceH hSRS, double dfOriginLat,
    7773             :                 double dfCMeridian, double dfScale, double dfFalseEasting,
    7774             :                 double dfFalseNorthing)
    7775             : 
    7776             : {
    7777           0 :     VALIDATE_POINTER1(hSRS, "OSRSetOS", OGRERR_FAILURE);
    7778             : 
    7779           0 :     return ToPointer(hSRS)->SetOS(dfOriginLat, dfCMeridian, dfScale,
    7780           0 :                                   dfFalseEasting, dfFalseNorthing);
    7781             : }
    7782             : 
    7783             : /************************************************************************/
    7784             : /*                          SetOrthographic()                           */
    7785             : /************************************************************************/
    7786             : 
    7787           7 : OGRErr OGRSpatialReference::SetOrthographic(double dfCenterLat,
    7788             :                                             double dfCenterLong,
    7789             :                                             double dfFalseEasting,
    7790             :                                             double dfFalseNorthing)
    7791             : 
    7792             : {
    7793          14 :     TAKE_OPTIONAL_LOCK();
    7794             : 
    7795           7 :     return d->replaceConversionAndUnref(proj_create_conversion_orthographic(
    7796             :         d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    7797          14 :         dfFalseNorthing, nullptr, 0, nullptr, 0));
    7798             : }
    7799             : 
    7800             : /************************************************************************/
    7801             : /*                         OSRSetOrthographic()                         */
    7802             : /************************************************************************/
    7803             : 
    7804           1 : OGRErr OSRSetOrthographic(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7805             :                           double dfCenterLong, double dfFalseEasting,
    7806             :                           double dfFalseNorthing)
    7807             : 
    7808             : {
    7809           1 :     VALIDATE_POINTER1(hSRS, "OSRSetOrthographic", OGRERR_FAILURE);
    7810             : 
    7811           1 :     return ToPointer(hSRS)->SetOrthographic(dfCenterLat, dfCenterLong,
    7812           1 :                                             dfFalseEasting, dfFalseNorthing);
    7813             : }
    7814             : 
    7815             : /************************************************************************/
    7816             : /*                            SetPolyconic()                            */
    7817             : /************************************************************************/
    7818             : 
    7819           7 : OGRErr OGRSpatialReference::SetPolyconic(double dfCenterLat,
    7820             :                                          double dfCenterLong,
    7821             :                                          double dfFalseEasting,
    7822             :                                          double dfFalseNorthing)
    7823             : 
    7824             : {
    7825          14 :     TAKE_OPTIONAL_LOCK();
    7826             : 
    7827             :     // note: it seems that by some definitions this should include a
    7828             :     //       scale_factor parameter.
    7829           7 :     return d->replaceConversionAndUnref(
    7830             :         proj_create_conversion_american_polyconic(
    7831             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    7832          14 :             dfFalseNorthing, nullptr, 0, nullptr, 0));
    7833             : }
    7834             : 
    7835             : /************************************************************************/
    7836             : /*                          OSRSetPolyconic()                           */
    7837             : /************************************************************************/
    7838             : 
    7839           0 : OGRErr OSRSetPolyconic(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7840             :                        double dfCenterLong, double dfFalseEasting,
    7841             :                        double dfFalseNorthing)
    7842             : 
    7843             : {
    7844           0 :     VALIDATE_POINTER1(hSRS, "OSRSetPolyconic", OGRERR_FAILURE);
    7845             : 
    7846           0 :     return ToPointer(hSRS)->SetPolyconic(dfCenterLat, dfCenterLong,
    7847           0 :                                          dfFalseEasting, dfFalseNorthing);
    7848             : }
    7849             : 
    7850             : /************************************************************************/
    7851             : /*                               SetPS()                                */
    7852             : /************************************************************************/
    7853             : 
    7854             : /** Sets a Polar Stereographic projection.
    7855             :  *
    7856             :  * Two variants are possible:
    7857             :  * - Polar Stereographic Variant A: dfCenterLat must be +/- 90° and is
    7858             :  *   interpreted as the latitude of origin, combined with the scale factor
    7859             :  * - Polar Stereographic Variant B: dfCenterLat is different from +/- 90° and
    7860             :  *   is interpreted as the latitude of true scale. In that situation, dfScale
    7861             :  *   must be set to 1 (it is ignored in the projection parameters)
    7862             :  */
    7863          30 : OGRErr OGRSpatialReference::SetPS(double dfCenterLat, double dfCenterLong,
    7864             :                                   double dfScale, double dfFalseEasting,
    7865             :                                   double dfFalseNorthing)
    7866             : 
    7867             : {
    7868          60 :     TAKE_OPTIONAL_LOCK();
    7869             : 
    7870             :     PJ *conv;
    7871          30 :     if (dfScale == 1.0 && std::abs(std::abs(dfCenterLat) - 90) > 1e-8)
    7872             :     {
    7873          20 :         conv = proj_create_conversion_polar_stereographic_variant_b(
    7874             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfFalseEasting,
    7875             :             dfFalseNorthing, nullptr, 0, nullptr, 0);
    7876             :     }
    7877             :     else
    7878             :     {
    7879          10 :         conv = proj_create_conversion_polar_stereographic_variant_a(
    7880             :             d->getPROJContext(), dfCenterLat, dfCenterLong, dfScale,
    7881             :             dfFalseEasting, dfFalseNorthing, nullptr, 0, nullptr, 0);
    7882             :     }
    7883             : 
    7884          30 :     const char *pszName = nullptr;
    7885          30 :     double dfConvFactor = GetTargetLinearUnits(nullptr, &pszName);
    7886          30 :     CPLString osName = pszName ? pszName : "";
    7887             : 
    7888          30 :     d->refreshProjObj();
    7889             : 
    7890          30 :     d->demoteFromBoundCRS();
    7891             : 
    7892          30 :     auto cs = proj_create_cartesian_2D_cs(
    7893             :         d->getPROJContext(),
    7894             :         dfCenterLat > 0 ? PJ_CART2D_NORTH_POLE_EASTING_SOUTH_NORTHING_SOUTH
    7895             :                         : PJ_CART2D_SOUTH_POLE_EASTING_NORTH_NORTHING_NORTH,
    7896          30 :         !osName.empty() ? osName.c_str() : nullptr, dfConvFactor);
    7897             :     auto projCRS =
    7898          30 :         proj_create_projected_crs(d->getPROJContext(), d->getProjCRSName(),
    7899          30 :                                   d->getGeodBaseCRS(), conv, cs);
    7900          30 :     proj_destroy(conv);
    7901          30 :     proj_destroy(cs);
    7902             : 
    7903          30 :     d->setPjCRS(projCRS);
    7904             : 
    7905          30 :     d->undoDemoteFromBoundCRS();
    7906             : 
    7907          60 :     return OGRERR_NONE;
    7908             : }
    7909             : 
    7910             : /************************************************************************/
    7911             : /*                              OSRSetPS()                              */
    7912             : /************************************************************************/
    7913             : 
    7914           1 : OGRErr OSRSetPS(OGRSpatialReferenceH hSRS, double dfCenterLat,
    7915             :                 double dfCenterLong, double dfScale, double dfFalseEasting,
    7916             :                 double dfFalseNorthing)
    7917             : 
    7918             : {
    7919           1 :     VALIDATE_POINTER1(hSRS, "OSRSetPS", OGRERR_FAILURE);
    7920             : 
    7921           1 :     return ToPointer(hSRS)->SetPS(dfCenterLat, dfCenterLong, dfScale,
    7922           1 :                                   dfFalseEasting, dfFalseNorthing);
    7923             : }
    7924             : 
    7925             : /************************************************************************/
    7926             : /*                            SetRobinson()                             */
    7927             : /************************************************************************/
    7928             : 
    7929           4 : OGRErr OGRSpatialReference::SetRobinson(double dfCenterLong,
    7930             :                                         double dfFalseEasting,
    7931             :                                         double dfFalseNorthing)
    7932             : 
    7933             : {
    7934           8 :     TAKE_OPTIONAL_LOCK();
    7935             : 
    7936           4 :     return d->replaceConversionAndUnref(proj_create_conversion_robinson(
    7937             :         d->getPROJContext(), dfCenterLong, dfFalseEasting, dfFalseNorthing,
    7938           8 :         nullptr, 0, nullptr, 0));
    7939             : }
    7940             : 
    7941             : /************************************************************************/
    7942             : /*                           OSRSetRobinson()                           */
    7943             : /************************************************************************/
    7944             : 
    7945           0 : OGRErr OSRSetRobinson(OGRSpatialReferenceH hSRS, double dfCenterLong,
    7946             :                       double dfFalseEasting, double dfFalseNorthing)
    7947             : 
    7948             : {
    7949           0 :     VALIDATE_POINTER1(hSRS, "OSRSetRobinson", OGRERR_FAILURE);
    7950             : 
    7951           0 :     return ToPointer(hSRS)->SetRobinson(dfCenterLong, dfFalseEasting,
    7952           0 :                                         dfFalseNorthing);
    7953             : }
    7954             : 
    7955             : /************************************************************************/
    7956             : /*                           SetSinusoidal()                            */
    7957             : /************************************************************************/
    7958             : 
    7959          35 : OGRErr OGRSpatialReference::SetSinusoidal(double dfCenterLong,
    7960             :                                           double dfFalseEasting,
    7961             :                                           double dfFalseNorthing)
    7962             : 
    7963             : {
    7964          70 :     TAKE_OPTIONAL_LOCK();
    7965             : 
    7966          35 :     return d->replaceConversionAndUnref(proj_create_conversion_sinusoidal(
    7967             :         d->getPROJContext(), dfCenterLong, dfFalseEasting, dfFalseNorthing,
    7968          70 :         nullptr, 0, nullptr, 0));
    7969             : }
    7970             : 
    7971             : /************************************************************************/
    7972             : /*                          OSRSetSinusoidal()                          */
    7973             : /************************************************************************/
    7974             : 
    7975           1 : OGRErr OSRSetSinusoidal(OGRSpatialReferenceH hSRS, double dfCenterLong,
    7976             :                         double dfFalseEasting, double dfFalseNorthing)
    7977             : 
    7978             : {
    7979           1 :     VALIDATE_POINTER1(hSRS, "OSRSetSinusoidal", OGRERR_FAILURE);
    7980             : 
    7981           1 :     return ToPointer(hSRS)->SetSinusoidal(dfCenterLong, dfFalseEasting,
    7982           1 :                                           dfFalseNorthing);
    7983             : }
    7984             : 
    7985             : /************************************************************************/
    7986             : /*                          SetStereographic()                          */
    7987             : /************************************************************************/
    7988             : 
    7989           2 : OGRErr OGRSpatialReference::SetStereographic(double dfOriginLat,
    7990             :                                              double dfCMeridian, double dfScale,
    7991             :                                              double dfFalseEasting,
    7992             :                                              double dfFalseNorthing)
    7993             : 
    7994             : {
    7995           4 :     TAKE_OPTIONAL_LOCK();
    7996             : 
    7997           2 :     return d->replaceConversionAndUnref(proj_create_conversion_stereographic(
    7998             :         d->getPROJContext(), dfOriginLat, dfCMeridian, dfScale, dfFalseEasting,
    7999           4 :         dfFalseNorthing, nullptr, 0, nullptr, 0));
    8000             : }
    8001             : 
    8002             : /************************************************************************/
    8003             : /*                        OSRSetStereographic()                         */
    8004             : /************************************************************************/
    8005             : 
    8006           0 : OGRErr OSRSetStereographic(OGRSpatialReferenceH hSRS, double dfOriginLat,
    8007             :                            double dfCMeridian, double dfScale,
    8008             :                            double dfFalseEasting, double dfFalseNorthing)
    8009             : 
    8010             : {
    8011           0 :     VALIDATE_POINTER1(hSRS, "OSRSetStereographic", OGRERR_FAILURE);
    8012             : 
    8013           0 :     return ToPointer(hSRS)->SetStereographic(dfOriginLat, dfCMeridian, dfScale,
    8014           0 :                                              dfFalseEasting, dfFalseNorthing);
    8015             : }
    8016             : 
    8017             : /************************************************************************/
    8018             : /*                               SetSOC()                               */
    8019             : /*                                                                      */
    8020             : /*      NOTE: This definition isn't really used in practice any more    */
    8021             : /*      and should be considered deprecated.  It seems that swiss       */
    8022             : /*      oblique mercator is now define as Hotine_Oblique_Mercator       */
    8023             : /*      with an azimuth of 90 and a rectified_grid_angle of 90.  See    */
    8024             : /*      EPSG:2056 and Bug 423.                                          */
    8025             : /************************************************************************/
    8026             : 
    8027           2 : OGRErr OGRSpatialReference::SetSOC(double dfLatitudeOfOrigin,
    8028             :                                    double dfCentralMeridian,
    8029             :                                    double dfFalseEasting,
    8030             :                                    double dfFalseNorthing)
    8031             : 
    8032             : {
    8033           4 :     TAKE_OPTIONAL_LOCK();
    8034             : 
    8035           2 :     return d->replaceConversionAndUnref(
    8036             :         proj_create_conversion_hotine_oblique_mercator_variant_b(
    8037             :             d->getPROJContext(), dfLatitudeOfOrigin, dfCentralMeridian, 90.0,
    8038             :             90.0, 1.0, dfFalseEasting, dfFalseNorthing, nullptr, 0.0, nullptr,
    8039           4 :             0.0));
    8040             : #if 0
    8041             :     SetProjection( SRS_PT_SWISS_OBLIQUE_CYLINDRICAL );
    8042             :     SetNormProjParm( SRS_PP_LATITUDE_OF_CENTER, dfLatitudeOfOrigin );
    8043             :     SetNormProjParm( SRS_PP_CENTRAL_MERIDIAN, dfCentralMeridian );
    8044             :     SetNormProjParm( SRS_PP_FALSE_EASTING, dfFalseEasting );
    8045             :     SetNormProjParm( SRS_PP_FALSE_NORTHING, dfFalseNorthing );
    8046             : 
    8047             :     return OGRERR_NONE;
    8048             : #endif
    8049             : }
    8050             : 
    8051             : /************************************************************************/
    8052             : /*                             OSRSetSOC()                              */
    8053             : /************************************************************************/
    8054             : 
    8055           0 : OGRErr OSRSetSOC(OGRSpatialReferenceH hSRS, double dfLatitudeOfOrigin,
    8056             :                  double dfCentralMeridian, double dfFalseEasting,
    8057             :                  double dfFalseNorthing)
    8058             : 
    8059             : {
    8060           0 :     VALIDATE_POINTER1(hSRS, "OSRSetSOC", OGRERR_FAILURE);
    8061             : 
    8062           0 :     return ToPointer(hSRS)->SetSOC(dfLatitudeOfOrigin, dfCentralMeridian,
    8063           0 :                                    dfFalseEasting, dfFalseNorthing);
    8064             : }
    8065             : 
    8066             : /************************************************************************/
    8067             : /*                               SetVDG()                               */
    8068             : /************************************************************************/
    8069             : 
    8070           2 : OGRErr OGRSpatialReference::SetVDG(double dfCMeridian, double dfFalseEasting,
    8071             :                                    double dfFalseNorthing)
    8072             : 
    8073             : {
    8074           4 :     TAKE_OPTIONAL_LOCK();
    8075             : 
    8076           2 :     return d->replaceConversionAndUnref(proj_create_conversion_van_der_grinten(
    8077             :         d->getPROJContext(), dfCMeridian, dfFalseEasting, dfFalseNorthing,
    8078           4 :         nullptr, 0, nullptr, 0));
    8079             : }
    8080             : 
    8081             : /************************************************************************/
    8082             : /*                             OSRSetVDG()                              */
    8083             : /************************************************************************/
    8084             : 
    8085           0 : OGRErr OSRSetVDG(OGRSpatialReferenceH hSRS, double dfCentralMeridian,
    8086             :                  double dfFalseEasting, double dfFalseNorthing)
    8087             : 
    8088             : {
    8089           0 :     VALIDATE_POINTER1(hSRS, "OSRSetVDG", OGRERR_FAILURE);
    8090             : 
    8091           0 :     return ToPointer(hSRS)->SetVDG(dfCentralMeridian, dfFalseEasting,
    8092           0 :                                    dfFalseNorthing);
    8093             : }
    8094             : 
    8095             : /************************************************************************/
    8096             : /*                               SetUTM()                               */
    8097             : /************************************************************************/
    8098             : 
    8099             : /**
    8100             :  * \brief Set UTM projection definition.
    8101             :  *
    8102             :  * This will generate a projection definition with the full set of
    8103             :  * transverse mercator projection parameters for the given UTM zone.
    8104             :  * If no PROJCS[] description is set yet, one will be set to look
    8105             :  * like "UTM Zone %d, {Northern, Southern} Hemisphere".
    8106             :  *
    8107             :  * This method is the same as the C function OSRSetUTM().
    8108             :  *
    8109             :  * @param nZone UTM zone.
    8110             :  *
    8111             :  * @param bNorth TRUE for northern hemisphere, or FALSE for southern
    8112             :  * hemisphere.
    8113             :  *
    8114             :  * @return OGRERR_NONE on success.
    8115             :  */
    8116             : 
    8117         313 : OGRErr OGRSpatialReference::SetUTM(int nZone, int bNorth)
    8118             : 
    8119             : {
    8120         626 :     TAKE_OPTIONAL_LOCK();
    8121             : 
    8122         313 :     if (nZone < 0 || nZone > 60)
    8123             :     {
    8124           0 :         CPLError(CE_Failure, CPLE_AppDefined, "Invalid zone: %d", nZone);
    8125           0 :         return OGRERR_FAILURE;
    8126             :     }
    8127             : 
    8128         313 :     return d->replaceConversionAndUnref(
    8129         313 :         proj_create_conversion_utm(d->getPROJContext(), nZone, bNorth));
    8130             : }
    8131             : 
    8132             : /************************************************************************/
    8133             : /*                             OSRSetUTM()                              */
    8134             : /************************************************************************/
    8135             : 
    8136             : /**
    8137             :  * \brief Set UTM projection definition.
    8138             :  *
    8139             :  * This is the same as the C++ method OGRSpatialReference::SetUTM()
    8140             :  */
    8141          19 : OGRErr OSRSetUTM(OGRSpatialReferenceH hSRS, int nZone, int bNorth)
    8142             : 
    8143             : {
    8144          19 :     VALIDATE_POINTER1(hSRS, "OSRSetUTM", OGRERR_FAILURE);
    8145             : 
    8146          19 :     return ToPointer(hSRS)->SetUTM(nZone, bNorth);
    8147             : }
    8148             : 
    8149             : /************************************************************************/
    8150             : /*                             GetUTMZone()                             */
    8151             : /*                                                                      */
    8152             : /*      Returns zero if it isn't UTM.                                   */
    8153             : /************************************************************************/
    8154             : 
    8155             : /**
    8156             :  * \brief Get utm zone information.
    8157             :  *
    8158             :  * This is the same as the C function OSRGetUTMZone().
    8159             :  *
    8160             :  * In SWIG bindings (Python, Java, etc) the GetUTMZone() method returns a
    8161             :  * zone which is negative in the southern hemisphere instead of having the
    8162             :  * pbNorth flag used in the C and C++ interface.
    8163             :  *
    8164             :  * @param pbNorth pointer to in to set to TRUE if northern hemisphere, or
    8165             :  * FALSE if southern.
    8166             :  *
    8167             :  * @return UTM zone number or zero if this isn't a UTM definition.
    8168             :  */
    8169             : 
    8170         606 : int OGRSpatialReference::GetUTMZone(int *pbNorth) const
    8171             : 
    8172             : {
    8173        1212 :     TAKE_OPTIONAL_LOCK();
    8174             : 
    8175         606 :     if (IsProjected() && GetAxesCount() == 3)
    8176             :     {
    8177           1 :         OGRSpatialReference *poSRSTmp = Clone();
    8178           1 :         poSRSTmp->DemoteTo2D(nullptr);
    8179           1 :         const int nZone = poSRSTmp->GetUTMZone(pbNorth);
    8180           1 :         delete poSRSTmp;
    8181           1 :         return nZone;
    8182             :     }
    8183             : 
    8184         605 :     const char *pszProjection = GetAttrValue("PROJECTION");
    8185             : 
    8186         605 :     if (pszProjection == nullptr ||
    8187         525 :         !EQUAL(pszProjection, SRS_PT_TRANSVERSE_MERCATOR))
    8188         274 :         return 0;
    8189             : 
    8190         331 :     if (GetNormProjParm(SRS_PP_LATITUDE_OF_ORIGIN, 0.0) != 0.0)
    8191           5 :         return 0;
    8192             : 
    8193         326 :     if (GetProjParm(SRS_PP_SCALE_FACTOR, 1.0) != 0.9996)
    8194          15 :         return 0;
    8195             : 
    8196         311 :     if (fabs(GetNormProjParm(SRS_PP_FALSE_EASTING, 0.0) - 500000.0) > 0.001)
    8197           6 :         return 0;
    8198             : 
    8199         305 :     const double dfFalseNorthing = GetNormProjParm(SRS_PP_FALSE_NORTHING, 0.0);
    8200             : 
    8201         305 :     if (dfFalseNorthing != 0.0 && fabs(dfFalseNorthing - 10000000.0) > 0.001)
    8202           0 :         return 0;
    8203             : 
    8204         305 :     if (pbNorth != nullptr)
    8205         239 :         *pbNorth = (dfFalseNorthing == 0);
    8206             : 
    8207             :     const double dfCentralMeridian =
    8208         305 :         GetNormProjParm(SRS_PP_CENTRAL_MERIDIAN, 0.0);
    8209         305 :     const double dfZone = (dfCentralMeridian + 186.0) / 6.0;
    8210             : 
    8211         610 :     if (dfCentralMeridian < -177.00001 || dfCentralMeridian > 177.000001 ||
    8212         915 :         std::isnan(dfZone) ||
    8213         305 :         std::abs(dfZone - static_cast<int>(dfZone) - 0.5) > 0.00001)
    8214           0 :         return 0;
    8215             : 
    8216         305 :     return static_cast<int>(dfZone);
    8217             : }
    8218             : 
    8219             : /************************************************************************/
    8220             : /*                           OSRGetUTMZone()                            */
    8221             : /************************************************************************/
    8222             : 
    8223             : /**
    8224             :  * \brief Get utm zone information.
    8225             :  *
    8226             :  * This is the same as the C++ method OGRSpatialReference::GetUTMZone()
    8227             :  */
    8228           6 : int OSRGetUTMZone(OGRSpatialReferenceH hSRS, int *pbNorth)
    8229             : 
    8230             : {
    8231           6 :     VALIDATE_POINTER1(hSRS, "OSRGetUTMZone", 0);
    8232             : 
    8233           6 :     return ToPointer(hSRS)->GetUTMZone(pbNorth);
    8234             : }
    8235             : 
    8236             : /************************************************************************/
    8237             : /*                             SetWagner()                              */
    8238             : /************************************************************************/
    8239             : 
    8240           0 : OGRErr OGRSpatialReference::SetWagner(int nVariation,  // 1--7.
    8241             :                                       double dfCenterLat, double dfFalseEasting,
    8242             :                                       double dfFalseNorthing)
    8243             : 
    8244             : {
    8245           0 :     TAKE_OPTIONAL_LOCK();
    8246             : 
    8247             :     PJ *conv;
    8248           0 :     if (nVariation == 1)
    8249             :     {
    8250           0 :         conv = proj_create_conversion_wagner_i(d->getPROJContext(), 0.0,
    8251             :                                                dfFalseEasting, dfFalseNorthing,
    8252             :                                                nullptr, 0.0, nullptr, 0.0);
    8253             :     }
    8254           0 :     else if (nVariation == 2)
    8255             :     {
    8256           0 :         conv = proj_create_conversion_wagner_ii(d->getPROJContext(), 0.0,
    8257             :                                                 dfFalseEasting, dfFalseNorthing,
    8258             :                                                 nullptr, 0.0, nullptr, 0.0);
    8259             :     }
    8260           0 :     else if (nVariation == 3)
    8261             :     {
    8262           0 :         conv = proj_create_conversion_wagner_iii(
    8263             :             d->getPROJContext(), dfCenterLat, 0.0, dfFalseEasting,
    8264             :             dfFalseNorthing, nullptr, 0.0, nullptr, 0.0);
    8265             :     }
    8266           0 :     else if (nVariation == 4)
    8267             :     {
    8268           0 :         conv = proj_create_conversion_wagner_iv(d->getPROJContext(), 0.0,
    8269             :                                                 dfFalseEasting, dfFalseNorthing,
    8270             :                                                 nullptr, 0.0, nullptr, 0.0);
    8271             :     }
    8272           0 :     else if (nVariation == 5)
    8273             :     {
    8274           0 :         conv = proj_create_conversion_wagner_v(d->getPROJContext(), 0.0,
    8275             :                                                dfFalseEasting, dfFalseNorthing,
    8276             :                                                nullptr, 0.0, nullptr, 0.0);
    8277             :     }
    8278           0 :     else if (nVariation == 6)
    8279             :     {
    8280           0 :         conv = proj_create_conversion_wagner_vi(d->getPROJContext(), 0.0,
    8281             :                                                 dfFalseEasting, dfFalseNorthing,
    8282             :                                                 nullptr, 0.0, nullptr, 0.0);
    8283             :     }
    8284           0 :     else if (nVariation == 7)
    8285             :     {
    8286           0 :         conv = proj_create_conversion_wagner_vii(
    8287             :             d->getPROJContext(), 0.0, dfFalseEasting, dfFalseNorthing, nullptr,
    8288             :             0.0, nullptr, 0.0);
    8289             :     }
    8290             :     else
    8291             :     {
    8292           0 :         CPLError(CE_Failure, CPLE_AppDefined,
    8293             :                  "Unsupported Wagner variation (%d).", nVariation);
    8294           0 :         return OGRERR_UNSUPPORTED_SRS;
    8295             :     }
    8296             : 
    8297           0 :     return d->replaceConversionAndUnref(conv);
    8298             : }
    8299             : 
    8300             : /************************************************************************/
    8301             : /*                            OSRSetWagner()                            */
    8302             : /************************************************************************/
    8303             : 
    8304           0 : OGRErr OSRSetWagner(OGRSpatialReferenceH hSRS, int nVariation,
    8305             :                     double dfCenterLat, double dfFalseEasting,
    8306             :                     double dfFalseNorthing)
    8307             : 
    8308             : {
    8309           0 :     VALIDATE_POINTER1(hSRS, "OSRSetWagner", OGRERR_FAILURE);
    8310             : 
    8311           0 :     return ToPointer(hSRS)->SetWagner(nVariation, dfCenterLat, dfFalseEasting,
    8312           0 :                                       dfFalseNorthing);
    8313             : }
    8314             : 
    8315             : /************************************************************************/
    8316             : /*                            SetQSC()                     */
    8317             : /************************************************************************/
    8318             : 
    8319           0 : OGRErr OGRSpatialReference::SetQSC(double dfCenterLat, double dfCenterLong)
    8320             : {
    8321           0 :     TAKE_OPTIONAL_LOCK();
    8322             : 
    8323           0 :     return d->replaceConversionAndUnref(
    8324             :         proj_create_conversion_quadrilateralized_spherical_cube(
    8325             :             d->getPROJContext(), dfCenterLat, dfCenterLong, 0.0, 0.0, nullptr,
    8326           0 :             0, nullptr, 0));
    8327             : }
    8328             : 
    8329             : /************************************************************************/
    8330             : /*                           OSRSetQSC()                   */
    8331             : /************************************************************************/
    8332             : 
    8333           0 : OGRErr OSRSetQSC(OGRSpatialReferenceH hSRS, double dfCenterLat,
    8334             :                  double dfCenterLong)
    8335             : 
    8336             : {
    8337           0 :     VALIDATE_POINTER1(hSRS, "OSRSetQSC", OGRERR_FAILURE);
    8338             : 
    8339           0 :     return ToPointer(hSRS)->SetQSC(dfCenterLat, dfCenterLong);
    8340             : }
    8341             : 
    8342             : /************************************************************************/
    8343             : /*                            SetSCH()                     */
    8344             : /************************************************************************/
    8345             : 
    8346           0 : OGRErr OGRSpatialReference::SetSCH(double dfPegLat, double dfPegLong,
    8347             :                                    double dfPegHeading, double dfPegHgt)
    8348             : 
    8349             : {
    8350           0 :     TAKE_OPTIONAL_LOCK();
    8351             : 
    8352           0 :     return d->replaceConversionAndUnref(
    8353             :         proj_create_conversion_spherical_cross_track_height(
    8354             :             d->getPROJContext(), dfPegLat, dfPegLong, dfPegHeading, dfPegHgt,
    8355           0 :             nullptr, 0, nullptr, 0));
    8356             : }
    8357             : 
    8358             : /************************************************************************/
    8359             : /*                           OSRSetSCH()                   */
    8360             : /************************************************************************/
    8361             : 
    8362           0 : OGRErr OSRSetSCH(OGRSpatialReferenceH hSRS, double dfPegLat, double dfPegLong,
    8363             :                  double dfPegHeading, double dfPegHgt)
    8364             : 
    8365             : {
    8366           0 :     VALIDATE_POINTER1(hSRS, "OSRSetSCH", OGRERR_FAILURE);
    8367             : 
    8368           0 :     return ToPointer(hSRS)->SetSCH(dfPegLat, dfPegLong, dfPegHeading, dfPegHgt);
    8369             : }
    8370             : 
    8371             : /************************************************************************/
    8372             : /*                         SetVerticalPerspective()                     */
    8373             : /************************************************************************/
    8374             : 
    8375           3 : OGRErr OGRSpatialReference::SetVerticalPerspective(
    8376             :     double dfTopoOriginLat, double dfTopoOriginLon, double dfTopoOriginHeight,
    8377             :     double dfViewPointHeight, double dfFalseEasting, double dfFalseNorthing)
    8378             : {
    8379           6 :     TAKE_OPTIONAL_LOCK();
    8380             : 
    8381           3 :     return d->replaceConversionAndUnref(
    8382             :         proj_create_conversion_vertical_perspective(
    8383             :             d->getPROJContext(), dfTopoOriginLat, dfTopoOriginLon,
    8384             :             dfTopoOriginHeight, dfViewPointHeight, dfFalseEasting,
    8385           6 :             dfFalseNorthing, nullptr, 0, nullptr, 0));
    8386             : }
    8387             : 
    8388             : /************************************************************************/
    8389             : /*                       OSRSetVerticalPerspective()                    */
    8390             : /************************************************************************/
    8391             : 
    8392           1 : OGRErr OSRSetVerticalPerspective(OGRSpatialReferenceH hSRS,
    8393             :                                  double dfTopoOriginLat, double dfTopoOriginLon,
    8394             :                                  double dfTopoOriginHeight,
    8395             :                                  double dfViewPointHeight,
    8396             :                                  double dfFalseEasting, double dfFalseNorthing)
    8397             : 
    8398             : {
    8399           1 :     VALIDATE_POINTER1(hSRS, "OSRSetVerticalPerspective", OGRERR_FAILURE);
    8400             : 
    8401           1 :     return ToPointer(hSRS)->SetVerticalPerspective(
    8402             :         dfTopoOriginLat, dfTopoOriginLon, dfTopoOriginHeight, dfViewPointHeight,
    8403           1 :         dfFalseEasting, dfFalseNorthing);
    8404             : }
    8405             : 
    8406             : /************************************************************************/
    8407             : /*             SetDerivedGeogCRSWithPoleRotationGRIBConvention()        */
    8408             : /************************************************************************/
    8409             : 
    8410           2 : OGRErr OGRSpatialReference::SetDerivedGeogCRSWithPoleRotationGRIBConvention(
    8411             :     const char *pszCRSName, double dfSouthPoleLat, double dfSouthPoleLon,
    8412             :     double dfAxisRotation)
    8413             : {
    8414           4 :     TAKE_OPTIONAL_LOCK();
    8415             : 
    8416           2 :     d->refreshProjObj();
    8417           2 :     if (!d->m_pj_crs)
    8418           0 :         return OGRERR_FAILURE;
    8419           2 :     if (d->m_pjType != PJ_TYPE_GEOGRAPHIC_2D_CRS)
    8420           0 :         return OGRERR_FAILURE;
    8421           2 :     auto ctxt = d->getPROJContext();
    8422           2 :     auto conv = proj_create_conversion_pole_rotation_grib_convention(
    8423             :         ctxt, dfSouthPoleLat, dfSouthPoleLon, dfAxisRotation, nullptr, 0);
    8424           2 :     auto cs = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
    8425           4 :     d->setPjCRS(proj_create_derived_geographic_crs(ctxt, pszCRSName,
    8426           2 :                                                    d->m_pj_crs, conv, cs));
    8427           2 :     proj_destroy(conv);
    8428           2 :     proj_destroy(cs);
    8429           2 :     return OGRERR_NONE;
    8430             : }
    8431             : 
    8432             : /************************************************************************/
    8433             : /*         SetDerivedGeogCRSWithPoleRotationNetCDFCFConvention()        */
    8434             : /************************************************************************/
    8435             : 
    8436           3 : OGRErr OGRSpatialReference::SetDerivedGeogCRSWithPoleRotationNetCDFCFConvention(
    8437             :     const char *pszCRSName, double dfGridNorthPoleLat,
    8438             :     double dfGridNorthPoleLon, double dfNorthPoleGridLon)
    8439             : {
    8440           3 :     TAKE_OPTIONAL_LOCK();
    8441             : 
    8442             : #if PROJ_VERSION_MAJOR > 8 ||                                                  \
    8443             :     (PROJ_VERSION_MAJOR == 8 && PROJ_VERSION_MINOR >= 2)
    8444             :     d->refreshProjObj();
    8445             :     if (!d->m_pj_crs)
    8446             :         return OGRERR_FAILURE;
    8447             :     if (d->m_pjType != PJ_TYPE_GEOGRAPHIC_2D_CRS)
    8448             :         return OGRERR_FAILURE;
    8449             :     auto ctxt = d->getPROJContext();
    8450             :     auto conv = proj_create_conversion_pole_rotation_netcdf_cf_convention(
    8451             :         ctxt, dfGridNorthPoleLat, dfGridNorthPoleLon, dfNorthPoleGridLon,
    8452             :         nullptr, 0);
    8453             :     auto cs = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
    8454             :     d->setPjCRS(proj_create_derived_geographic_crs(ctxt, pszCRSName,
    8455             :                                                    d->m_pj_crs, conv, cs));
    8456             :     proj_destroy(conv);
    8457             :     proj_destroy(cs);
    8458             :     return OGRERR_NONE;
    8459             : #else
    8460             :     (void)pszCRSName;
    8461           3 :     SetProjection("Rotated_pole");
    8462           3 :     SetExtension(
    8463             :         "PROJCS", "PROJ4",
    8464             :         CPLSPrintf("+proj=ob_tran +o_proj=longlat +lon_0=%.17g +o_lon_p=%.17g "
    8465             :                    "+o_lat_p=%.17g +a=%.17g +b=%.17g "
    8466             :                    "+to_meter=0.0174532925199433 "
    8467             :                    "+wktext",
    8468             :                    180.0 + dfGridNorthPoleLon, dfNorthPoleGridLon,
    8469             :                    dfGridNorthPoleLat, GetSemiMajor(nullptr),
    8470             :                    GetSemiMinor(nullptr)));
    8471           6 :     return OGRERR_NONE;
    8472             : #endif
    8473             : }
    8474             : 
    8475             : /************************************************************************/
    8476             : /*                            SetAuthority()                            */
    8477             : /************************************************************************/
    8478             : 
    8479             : /**
    8480             :  * \brief Set the authority for a node.
    8481             :  *
    8482             :  * This method is the same as the C function OSRSetAuthority().
    8483             :  *
    8484             :  * @param pszTargetKey the partial or complete path to the node to
    8485             :  * set an authority on.  i.e. "PROJCS", "GEOGCS" or "GEOGCS|UNIT".
    8486             :  *
    8487             :  * @param pszAuthority authority name, such as "EPSG".
    8488             :  *
    8489             :  * @param nCode code for value with this authority.
    8490             :  *
    8491             :  * @return OGRERR_NONE on success.
    8492             :  */
    8493             : 
    8494       12265 : OGRErr OGRSpatialReference::SetAuthority(const char *pszTargetKey,
    8495             :                                          const char *pszAuthority, int nCode)
    8496             : 
    8497             : {
    8498       24530 :     TAKE_OPTIONAL_LOCK();
    8499             : 
    8500       12265 :     d->refreshProjObj();
    8501       12265 :     pszTargetKey = d->nullifyTargetKeyIfPossible(pszTargetKey);
    8502             : 
    8503       12265 :     if (pszTargetKey == nullptr)
    8504             :     {
    8505         263 :         if (!d->m_pj_crs)
    8506           0 :             return OGRERR_FAILURE;
    8507         263 :         CPLString osCode;
    8508         263 :         osCode.Printf("%d", nCode);
    8509         263 :         d->demoteFromBoundCRS();
    8510         263 :         d->setPjCRS(proj_alter_id(d->getPROJContext(), d->m_pj_crs,
    8511             :                                   pszAuthority, osCode.c_str()));
    8512         263 :         d->undoDemoteFromBoundCRS();
    8513         263 :         return OGRERR_NONE;
    8514             :     }
    8515             : 
    8516       12002 :     d->demoteFromBoundCRS();
    8517       12002 :     if (d->m_pjType == PJ_TYPE_PROJECTED_CRS && EQUAL(pszTargetKey, "GEOGCS"))
    8518             :     {
    8519        3968 :         CPLString osCode;
    8520        3968 :         osCode.Printf("%d", nCode);
    8521             :         auto newGeogCRS =
    8522        3968 :             proj_alter_id(d->getPROJContext(), d->getGeodBaseCRS(),
    8523             :                           pszAuthority, osCode.c_str());
    8524             : 
    8525             :         auto conv =
    8526        3968 :             proj_crs_get_coordoperation(d->getPROJContext(), d->m_pj_crs);
    8527             : 
    8528        3968 :         auto projCRS = proj_create_projected_crs(
    8529             :             d->getPROJContext(), d->getProjCRSName(), newGeogCRS, conv,
    8530        3968 :             d->getProjCRSCoordSys());
    8531             : 
    8532             :         // Preserve existing id on the PROJCRS
    8533        3968 :         const char *pszProjCRSAuthName = proj_get_id_auth_name(d->m_pj_crs, 0);
    8534        3968 :         const char *pszProjCRSCode = proj_get_id_code(d->m_pj_crs, 0);
    8535        3968 :         if (pszProjCRSAuthName && pszProjCRSCode)
    8536             :         {
    8537             :             auto projCRSWithId =
    8538           0 :                 proj_alter_id(d->getPROJContext(), projCRS, pszProjCRSAuthName,
    8539             :                               pszProjCRSCode);
    8540           0 :             proj_destroy(projCRS);
    8541           0 :             projCRS = projCRSWithId;
    8542             :         }
    8543             : 
    8544        3968 :         proj_destroy(newGeogCRS);
    8545        3968 :         proj_destroy(conv);
    8546             : 
    8547        3968 :         d->setPjCRS(projCRS);
    8548        3968 :         d->undoDemoteFromBoundCRS();
    8549        3968 :         return OGRERR_NONE;
    8550             :     }
    8551        8034 :     d->undoDemoteFromBoundCRS();
    8552             : 
    8553             :     /* -------------------------------------------------------------------- */
    8554             :     /*      Find the node below which the authority should be put.          */
    8555             :     /* -------------------------------------------------------------------- */
    8556        8034 :     OGR_SRSNode *poNode = GetAttrNode(pszTargetKey);
    8557             : 
    8558        8034 :     if (poNode == nullptr)
    8559           0 :         return OGRERR_FAILURE;
    8560             : 
    8561             :     /* -------------------------------------------------------------------- */
    8562             :     /*      If there is an existing AUTHORITY child blow it away before     */
    8563             :     /*      trying to set a new one.                                        */
    8564             :     /* -------------------------------------------------------------------- */
    8565        8034 :     int iOldChild = poNode->FindChild("AUTHORITY");
    8566        8034 :     if (iOldChild != -1)
    8567           5 :         poNode->DestroyChild(iOldChild);
    8568             : 
    8569             :     /* -------------------------------------------------------------------- */
    8570             :     /*      Create a new authority node.                                    */
    8571             :     /* -------------------------------------------------------------------- */
    8572        8034 :     char szCode[32] = {};
    8573             : 
    8574        8034 :     snprintf(szCode, sizeof(szCode), "%d", nCode);
    8575             : 
    8576        8034 :     OGR_SRSNode *poAuthNode = new OGR_SRSNode("AUTHORITY");
    8577        8034 :     poAuthNode->AddChild(new OGR_SRSNode(pszAuthority));
    8578        8034 :     poAuthNode->AddChild(new OGR_SRSNode(szCode));
    8579             : 
    8580        8034 :     poNode->AddChild(poAuthNode);
    8581             : 
    8582        8034 :     return OGRERR_NONE;
    8583             : }
    8584             : 
    8585             : /************************************************************************/
    8586             : /*                          OSRSetAuthority()                           */
    8587             : /************************************************************************/
    8588             : 
    8589             : /**
    8590             :  * \brief Set the authority for a node.
    8591             :  *
    8592             :  * This function is the same as OGRSpatialReference::SetAuthority().
    8593             :  */
    8594           0 : OGRErr OSRSetAuthority(OGRSpatialReferenceH hSRS, const char *pszTargetKey,
    8595             :                        const char *pszAuthority, int nCode)
    8596             : 
    8597             : {
    8598           0 :     VALIDATE_POINTER1(hSRS, "OSRSetAuthority", OGRERR_FAILURE);
    8599             : 
    8600           0 :     return ToPointer(hSRS)->SetAuthority(pszTargetKey, pszAuthority, nCode);
    8601             : }
    8602             : 
    8603             : /************************************************************************/
    8604             : /*                          GetAuthorityCode()                          */
    8605             : /************************************************************************/
    8606             : 
    8607             : /**
    8608             :  * \brief Get the authority code for a node.
    8609             :  *
    8610             :  * This method is used to query an AUTHORITY[] node from within the
    8611             :  * WKT tree, and fetch the code value.
    8612             :  *
    8613             :  * While in theory values may be non-numeric, for the EPSG authority all
    8614             :  * code values should be integral.
    8615             :  *
    8616             :  * This method is the same as the C function OSRGetAuthorityCode().
    8617             :  *
    8618             :  * @param pszTargetKey the partial or complete path to the node to
    8619             :  * get an authority from.  i.e. "PROJCS", "GEOGCS", "GEOGCS|UNIT" or NULL to
    8620             :  * search for an authority node on the root element.
    8621             :  *
    8622             :  * @return value code from authority node, or NULL on failure.  The value
    8623             :  * returned is internal and should not be freed or modified.
    8624             :  */
    8625             : 
    8626             : const char *
    8627       47242 : OGRSpatialReference::GetAuthorityCode(const char *pszTargetKey) const
    8628             : 
    8629             : {
    8630       94484 :     TAKE_OPTIONAL_LOCK();
    8631             : 
    8632       47242 :     d->refreshProjObj();
    8633       47242 :     const char *pszInputTargetKey = pszTargetKey;
    8634       47242 :     pszTargetKey = d->nullifyTargetKeyIfPossible(pszTargetKey);
    8635       47242 :     if (pszTargetKey == nullptr)
    8636             :     {
    8637       39110 :         if (!d->m_pj_crs)
    8638             :         {
    8639          17 :             return nullptr;
    8640             :         }
    8641       39093 :         d->demoteFromBoundCRS();
    8642       39093 :         auto ret = proj_get_id_code(d->m_pj_crs, 0);
    8643       39093 :         if (ret == nullptr && d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    8644             :         {
    8645        1282 :             auto ctxt = d->getPROJContext();
    8646        1282 :             auto cs = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
    8647        1282 :             if (cs)
    8648             :             {
    8649        1282 :                 const int axisCount = proj_cs_get_axis_count(ctxt, cs);
    8650        1282 :                 proj_destroy(cs);
    8651        1282 :                 if (axisCount == 3)
    8652             :                 {
    8653             :                     // This might come from a COMPD_CS with a VERT_DATUM type =
    8654             :                     // 2002 in which case, using the WKT1 representation will
    8655             :                     // enable us to recover the EPSG code.
    8656          14 :                     pszTargetKey = pszInputTargetKey;
    8657             :                 }
    8658             :             }
    8659             :         }
    8660       39093 :         d->undoDemoteFromBoundCRS();
    8661       39093 :         if (ret != nullptr || pszTargetKey == nullptr)
    8662             :         {
    8663       39093 :             return ret;
    8664             :         }
    8665             :     }
    8666             : 
    8667             :     // Special key for that context
    8668        8136 :     else if (EQUAL(pszTargetKey, "HORIZCRS") &&
    8669           4 :              d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    8670             :     {
    8671           4 :         auto ctxt = d->getPROJContext();
    8672           4 :         auto crs = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 0);
    8673           4 :         if (crs)
    8674             :         {
    8675           4 :             const char *ret = proj_get_id_code(crs, 0);
    8676           4 :             if (ret)
    8677           4 :                 ret = CPLSPrintf("%s", ret);
    8678           4 :             proj_destroy(crs);
    8679           4 :             return ret;
    8680             :         }
    8681             :     }
    8682        8132 :     else if (EQUAL(pszTargetKey, "VERTCRS") &&
    8683           4 :              d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    8684             :     {
    8685           4 :         auto ctxt = d->getPROJContext();
    8686           4 :         auto crs = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 1);
    8687           4 :         if (crs)
    8688             :         {
    8689           4 :             const char *ret = proj_get_id_code(crs, 0);
    8690           4 :             if (ret)
    8691           4 :                 ret = CPLSPrintf("%s", ret);
    8692           4 :             proj_destroy(crs);
    8693           4 :             return ret;
    8694             :         }
    8695             :     }
    8696             : 
    8697             :     /* -------------------------------------------------------------------- */
    8698             :     /*      Find the node below which the authority should be put.          */
    8699             :     /* -------------------------------------------------------------------- */
    8700        8124 :     const OGR_SRSNode *poNode = GetAttrNode(pszTargetKey);
    8701             : 
    8702        8124 :     if (poNode == nullptr)
    8703         103 :         return nullptr;
    8704             : 
    8705             :     /* -------------------------------------------------------------------- */
    8706             :     /*      Fetch AUTHORITY child if there is one.                          */
    8707             :     /* -------------------------------------------------------------------- */
    8708        8021 :     if (poNode->FindChild("AUTHORITY") == -1)
    8709         195 :         return nullptr;
    8710             : 
    8711        7826 :     poNode = poNode->GetChild(poNode->FindChild("AUTHORITY"));
    8712             : 
    8713             :     /* -------------------------------------------------------------------- */
    8714             :     /*      Create a new authority node.                                    */
    8715             :     /* -------------------------------------------------------------------- */
    8716        7826 :     if (poNode->GetChildCount() < 2)
    8717           0 :         return nullptr;
    8718             : 
    8719        7826 :     return poNode->GetChild(1)->GetValue();
    8720             : }
    8721             : 
    8722             : /************************************************************************/
    8723             : /*                          OSRGetAuthorityCode()                       */
    8724             : /************************************************************************/
    8725             : 
    8726             : /**
    8727             :  * \brief Get the authority code for a node.
    8728             :  *
    8729             :  * This function is the same as OGRSpatialReference::GetAuthorityCode().
    8730             :  */
    8731         745 : const char *OSRGetAuthorityCode(OGRSpatialReferenceH hSRS,
    8732             :                                 const char *pszTargetKey)
    8733             : 
    8734             : {
    8735         745 :     VALIDATE_POINTER1(hSRS, "OSRGetAuthorityCode", nullptr);
    8736             : 
    8737         745 :     return ToPointer(hSRS)->GetAuthorityCode(pszTargetKey);
    8738             : }
    8739             : 
    8740             : /************************************************************************/
    8741             : /*                          GetAuthorityName()                          */
    8742             : /************************************************************************/
    8743             : 
    8744             : /**
    8745             :  * \brief Get the authority name for a node.
    8746             :  *
    8747             :  * This method is used to query an AUTHORITY[] node from within the
    8748             :  * WKT tree, and fetch the authority name value.
    8749             :  *
    8750             :  * The most common authority is "EPSG".
    8751             :  *
    8752             :  * This method is the same as the C function OSRGetAuthorityName().
    8753             :  *
    8754             :  * @param pszTargetKey the partial or complete path to the node to
    8755             :  * get an authority from.  i.e. "PROJCS", "GEOGCS", "GEOGCS|UNIT" or NULL to
    8756             :  * search for an authority node on the root element.
    8757             :  *
    8758             :  * @return value code from authority node, or NULL on failure. The value
    8759             :  * returned is internal and should not be freed or modified.
    8760             :  */
    8761             : 
    8762             : const char *
    8763       61040 : OGRSpatialReference::GetAuthorityName(const char *pszTargetKey) const
    8764             : 
    8765             : {
    8766      122080 :     TAKE_OPTIONAL_LOCK();
    8767             : 
    8768       61040 :     d->refreshProjObj();
    8769       61040 :     const char *pszInputTargetKey = pszTargetKey;
    8770       61040 :     pszTargetKey = d->nullifyTargetKeyIfPossible(pszTargetKey);
    8771       61040 :     if (pszTargetKey == nullptr)
    8772             :     {
    8773       32530 :         if (!d->m_pj_crs)
    8774             :         {
    8775          18 :             return nullptr;
    8776             :         }
    8777       32512 :         d->demoteFromBoundCRS();
    8778       32512 :         auto ret = proj_get_id_auth_name(d->m_pj_crs, 0);
    8779       32512 :         if (ret == nullptr && d->m_pjType == PJ_TYPE_PROJECTED_CRS)
    8780             :         {
    8781         904 :             auto ctxt = d->getPROJContext();
    8782         904 :             auto cs = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
    8783         904 :             if (cs)
    8784             :             {
    8785         904 :                 const int axisCount = proj_cs_get_axis_count(ctxt, cs);
    8786         904 :                 proj_destroy(cs);
    8787         904 :                 if (axisCount == 3)
    8788             :                 {
    8789             :                     // This might come from a COMPD_CS with a VERT_DATUM type =
    8790             :                     // 2002 in which case, using the WKT1 representation will
    8791             :                     // enable us to recover the EPSG code.
    8792          14 :                     pszTargetKey = pszInputTargetKey;
    8793             :                 }
    8794             :             }
    8795             :         }
    8796       32512 :         d->undoDemoteFromBoundCRS();
    8797       32512 :         if (ret != nullptr || pszTargetKey == nullptr)
    8798             :         {
    8799       32512 :             return ret;
    8800             :         }
    8801             :     }
    8802             : 
    8803             :     // Special key for that context
    8804       28514 :     else if (EQUAL(pszTargetKey, "HORIZCRS") &&
    8805           4 :              d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    8806             :     {
    8807           4 :         auto ctxt = d->getPROJContext();
    8808           4 :         auto crs = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 0);
    8809           4 :         if (crs)
    8810             :         {
    8811           4 :             const char *ret = proj_get_id_auth_name(crs, 0);
    8812           4 :             if (ret)
    8813           4 :                 ret = CPLSPrintf("%s", ret);
    8814           4 :             proj_destroy(crs);
    8815           4 :             return ret;
    8816             :         }
    8817             :     }
    8818       28510 :     else if (EQUAL(pszTargetKey, "VERTCRS") &&
    8819           4 :              d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    8820             :     {
    8821           4 :         auto ctxt = d->getPROJContext();
    8822           4 :         auto crs = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 1);
    8823           4 :         if (crs)
    8824             :         {
    8825           4 :             const char *ret = proj_get_id_auth_name(crs, 0);
    8826           4 :             if (ret)
    8827           4 :                 ret = CPLSPrintf("%s", ret);
    8828           4 :             proj_destroy(crs);
    8829           4 :             return ret;
    8830             :         }
    8831             :     }
    8832             : 
    8833             :     /* -------------------------------------------------------------------- */
    8834             :     /*      Find the node below which the authority should be put.          */
    8835             :     /* -------------------------------------------------------------------- */
    8836       28502 :     const OGR_SRSNode *poNode = GetAttrNode(pszTargetKey);
    8837             : 
    8838       28502 :     if (poNode == nullptr)
    8839       11863 :         return nullptr;
    8840             : 
    8841             :     /* -------------------------------------------------------------------- */
    8842             :     /*      Fetch AUTHORITY child if there is one.                          */
    8843             :     /* -------------------------------------------------------------------- */
    8844       16639 :     if (poNode->FindChild("AUTHORITY") == -1)
    8845        1591 :         return nullptr;
    8846             : 
    8847       15048 :     poNode = poNode->GetChild(poNode->FindChild("AUTHORITY"));
    8848             : 
    8849             :     /* -------------------------------------------------------------------- */
    8850             :     /*      Create a new authority node.                                    */
    8851             :     /* -------------------------------------------------------------------- */
    8852       15048 :     if (poNode->GetChildCount() < 2)
    8853           0 :         return nullptr;
    8854             : 
    8855       15048 :     return poNode->GetChild(0)->GetValue();
    8856             : }
    8857             : 
    8858             : /************************************************************************/
    8859             : /*                        OSRGetAuthorityName()                         */
    8860             : /************************************************************************/
    8861             : 
    8862             : /**
    8863             :  * \brief Get the authority name for a node.
    8864             :  *
    8865             :  * This function is the same as OGRSpatialReference::GetAuthorityName().
    8866             :  */
    8867         187 : const char *OSRGetAuthorityName(OGRSpatialReferenceH hSRS,
    8868             :                                 const char *pszTargetKey)
    8869             : 
    8870             : {
    8871         187 :     VALIDATE_POINTER1(hSRS, "OSRGetAuthorityName", nullptr);
    8872             : 
    8873         187 :     return ToPointer(hSRS)->GetAuthorityName(pszTargetKey);
    8874             : }
    8875             : 
    8876             : /************************************************************************/
    8877             : /*                          GetOGCURN()                                 */
    8878             : /************************************************************************/
    8879             : 
    8880             : /**
    8881             :  * \brief Get a OGC URN string describing the CRS, when possible
    8882             :  *
    8883             :  * This method assumes that the CRS has a top-level identifier, or is
    8884             :  * a compound CRS whose horizontal and vertical parts have a top-level
    8885             :  * identifier.
    8886             :  *
    8887             :  * @return a string to free with CPLFree(), or nullptr when no result can be
    8888             :  * generated
    8889             :  *
    8890             :  * @since GDAL 3.5
    8891             :  */
    8892             : 
    8893          61 : char *OGRSpatialReference::GetOGCURN() const
    8894             : 
    8895             : {
    8896         122 :     TAKE_OPTIONAL_LOCK();
    8897             : 
    8898          61 :     const char *pszAuthName = GetAuthorityName(nullptr);
    8899          61 :     const char *pszAuthCode = GetAuthorityCode(nullptr);
    8900          61 :     if (pszAuthName && pszAuthCode)
    8901          58 :         return CPLStrdup(
    8902          58 :             CPLSPrintf("urn:ogc:def:crs:%s::%s", pszAuthName, pszAuthCode));
    8903           3 :     if (d->m_pjType != PJ_TYPE_COMPOUND_CRS)
    8904           2 :         return nullptr;
    8905           1 :     auto horizCRS = proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 0);
    8906           1 :     auto vertCRS = proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 1);
    8907           1 :     char *pszRet = nullptr;
    8908           1 :     if (horizCRS && vertCRS)
    8909             :     {
    8910           1 :         auto horizAuthName = proj_get_id_auth_name(horizCRS, 0);
    8911           1 :         auto horizAuthCode = proj_get_id_code(horizCRS, 0);
    8912           1 :         auto vertAuthName = proj_get_id_auth_name(vertCRS, 0);
    8913           1 :         auto vertAuthCode = proj_get_id_code(vertCRS, 0);
    8914           1 :         if (horizAuthName && horizAuthCode && vertAuthName && vertAuthCode)
    8915             :         {
    8916           1 :             pszRet = CPLStrdup(CPLSPrintf(
    8917             :                 "urn:ogc:def:crs,crs:%s::%s,crs:%s::%s", horizAuthName,
    8918             :                 horizAuthCode, vertAuthName, vertAuthCode));
    8919             :         }
    8920             :     }
    8921           1 :     proj_destroy(horizCRS);
    8922           1 :     proj_destroy(vertCRS);
    8923           1 :     return pszRet;
    8924             : }
    8925             : 
    8926             : /************************************************************************/
    8927             : /*                           StripVertical()                            */
    8928             : /************************************************************************/
    8929             : 
    8930             : /**
    8931             :  * \brief Convert a compound cs into a horizontal CS.
    8932             :  *
    8933             :  * If this SRS is of type COMPD_CS[] then the vertical CS and the root COMPD_CS
    8934             :  * nodes are stripped resulting and only the horizontal coordinate system
    8935             :  * portion remains (normally PROJCS, GEOGCS or LOCAL_CS).
    8936             :  *
    8937             :  * If this is not a compound coordinate system then nothing is changed.
    8938             :  *
    8939             :  * This method is the same as the C function OSRStripVertical().
    8940             :  *
    8941             :  */
    8942             : 
    8943          46 : OGRErr OGRSpatialReference::StripVertical()
    8944             : 
    8945             : {
    8946          92 :     TAKE_OPTIONAL_LOCK();
    8947             : 
    8948          46 :     d->refreshProjObj();
    8949          46 :     d->demoteFromBoundCRS();
    8950          46 :     if (!d->m_pj_crs || d->m_pjType != PJ_TYPE_COMPOUND_CRS)
    8951             :     {
    8952           0 :         d->undoDemoteFromBoundCRS();
    8953           0 :         return OGRERR_NONE;
    8954             :     }
    8955          46 :     auto horizCRS = proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 0);
    8956          46 :     if (!horizCRS)
    8957             :     {
    8958           0 :         d->undoDemoteFromBoundCRS();
    8959           0 :         return OGRERR_FAILURE;
    8960             :     }
    8961             : 
    8962          46 :     bool reuseExistingBoundCRS = false;
    8963          46 :     if (d->m_pj_bound_crs_target)
    8964             :     {
    8965           4 :         auto type = proj_get_type(d->m_pj_bound_crs_target);
    8966           8 :         reuseExistingBoundCRS = type == PJ_TYPE_GEOCENTRIC_CRS ||
    8967           8 :                                 type == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    8968             :                                 type == PJ_TYPE_GEOGRAPHIC_3D_CRS;
    8969             :     }
    8970             : 
    8971          46 :     if (reuseExistingBoundCRS)
    8972             :     {
    8973           4 :         auto newBoundCRS = proj_crs_create_bound_crs(
    8974           4 :             d->getPROJContext(), horizCRS, d->m_pj_bound_crs_target,
    8975           4 :             d->m_pj_bound_crs_co);
    8976           4 :         proj_destroy(horizCRS);
    8977           4 :         d->undoDemoteFromBoundCRS();
    8978           4 :         d->setPjCRS(newBoundCRS);
    8979             :     }
    8980             :     else
    8981             :     {
    8982          42 :         d->undoDemoteFromBoundCRS();
    8983          42 :         d->setPjCRS(horizCRS);
    8984             :     }
    8985             : 
    8986          46 :     return OGRERR_NONE;
    8987             : }
    8988             : 
    8989             : /************************************************************************/
    8990             : /*                            OSRStripVertical()                             */
    8991             : /************************************************************************/
    8992             : /**
    8993             :  * \brief Convert a compound cs into a horizontal CS.
    8994             :  *
    8995             :  * This function is the same as the C++ method
    8996             :  * OGRSpatialReference::StripVertical().
    8997             :  */
    8998           1 : OGRErr OSRStripVertical(OGRSpatialReferenceH hSRS)
    8999             : 
    9000             : {
    9001           1 :     VALIDATE_POINTER1(hSRS, "OSRStripVertical", OGRERR_FAILURE);
    9002             : 
    9003           1 :     return OGRSpatialReference::FromHandle(hSRS)->StripVertical();
    9004             : }
    9005             : 
    9006             : /************************************************************************/
    9007             : /*                   StripTOWGS84IfKnownDatumAndAllowed()               */
    9008             : /************************************************************************/
    9009             : 
    9010             : /**
    9011             :  * \brief Remove TOWGS84 information if the CRS has a known horizontal datum
    9012             :  *        and this is allowed by the user.
    9013             :  *
    9014             :  * The default behavior is to remove TOWGS84 information if the CRS has a
    9015             :  * known horizontal datum. This can be disabled by setting the
    9016             :  * OSR_STRIP_TOWGS84 configuration option to NO.
    9017             :  *
    9018             :  * @return true if TOWGS84 has been removed.
    9019             :  * @since OGR 3.1.0
    9020             :  */
    9021             : 
    9022        9236 : bool OGRSpatialReference::StripTOWGS84IfKnownDatumAndAllowed()
    9023             : {
    9024        9236 :     if (CPLTestBool(CPLGetConfigOption("OSR_STRIP_TOWGS84", "YES")))
    9025             :     {
    9026        9233 :         if (StripTOWGS84IfKnownDatum())
    9027             :         {
    9028          72 :             CPLDebug("OSR", "TOWGS84 information has been removed. "
    9029             :                             "It can be kept by setting the OSR_STRIP_TOWGS84 "
    9030             :                             "configuration option to NO");
    9031          72 :             return true;
    9032             :         }
    9033             :     }
    9034        9164 :     return false;
    9035             : }
    9036             : 
    9037             : /************************************************************************/
    9038             : /*                      StripTOWGS84IfKnownDatum()                      */
    9039             : /************************************************************************/
    9040             : 
    9041             : /**
    9042             :  * \brief Remove TOWGS84 information if the CRS has a known horizontal datum
    9043             :  *
    9044             :  * @return true if TOWGS84 has been removed.
    9045             :  * @since OGR 3.1.0
    9046             :  */
    9047             : 
    9048        9239 : bool OGRSpatialReference::StripTOWGS84IfKnownDatum()
    9049             : 
    9050             : {
    9051       18478 :     TAKE_OPTIONAL_LOCK();
    9052             : 
    9053        9239 :     d->refreshProjObj();
    9054        9239 :     if (!d->m_pj_crs || d->m_pjType != PJ_TYPE_BOUND_CRS)
    9055             :     {
    9056        9147 :         return false;
    9057             :     }
    9058          92 :     auto ctxt = d->getPROJContext();
    9059          92 :     auto baseCRS = proj_get_source_crs(ctxt, d->m_pj_crs);
    9060          92 :     if (proj_get_type(baseCRS) == PJ_TYPE_COMPOUND_CRS)
    9061             :     {
    9062           3 :         proj_destroy(baseCRS);
    9063           3 :         return false;
    9064             :     }
    9065             : 
    9066             :     // Known base CRS code ? Return base CRS
    9067          89 :     const char *pszCode = proj_get_id_code(baseCRS, 0);
    9068          89 :     if (pszCode)
    9069             :     {
    9070           2 :         d->setPjCRS(baseCRS);
    9071           2 :         return true;
    9072             :     }
    9073             : 
    9074          87 :     auto datum = proj_crs_get_datum(ctxt, baseCRS);
    9075             : #if PROJ_VERSION_MAJOR > 7 ||                                                  \
    9076             :     (PROJ_VERSION_MAJOR == 7 && PROJ_VERSION_MINOR >= 2)
    9077             :     if (datum == nullptr)
    9078             :     {
    9079             :         datum = proj_crs_get_datum_ensemble(ctxt, baseCRS);
    9080             :     }
    9081             : #endif
    9082          87 :     if (!datum)
    9083             :     {
    9084           0 :         proj_destroy(baseCRS);
    9085           0 :         return false;
    9086             :     }
    9087             : 
    9088             :     // Known datum code ? Return base CRS
    9089          87 :     pszCode = proj_get_id_code(datum, 0);
    9090          87 :     if (pszCode)
    9091             :     {
    9092           3 :         proj_destroy(datum);
    9093           3 :         d->setPjCRS(baseCRS);
    9094           3 :         return true;
    9095             :     }
    9096             : 
    9097          84 :     const char *name = proj_get_name(datum);
    9098          84 :     if (EQUAL(name, "unknown"))
    9099             :     {
    9100           1 :         proj_destroy(datum);
    9101           1 :         proj_destroy(baseCRS);
    9102           1 :         return false;
    9103             :     }
    9104          83 :     const PJ_TYPE type = PJ_TYPE_GEODETIC_REFERENCE_FRAME;
    9105             :     PJ_OBJ_LIST *list =
    9106          83 :         proj_create_from_name(ctxt, nullptr, name, &type, 1, false, 1, nullptr);
    9107             : 
    9108          83 :     bool knownDatumName = false;
    9109          83 :     if (list)
    9110             :     {
    9111          83 :         if (proj_list_get_count(list) == 1)
    9112             :         {
    9113          70 :             knownDatumName = true;
    9114             :         }
    9115          83 :         proj_list_destroy(list);
    9116             :     }
    9117             : 
    9118          83 :     proj_destroy(datum);
    9119          83 :     if (knownDatumName)
    9120             :     {
    9121          70 :         d->setPjCRS(baseCRS);
    9122          70 :         return true;
    9123             :     }
    9124          13 :     proj_destroy(baseCRS);
    9125          13 :     return false;
    9126             : }
    9127             : 
    9128             : /************************************************************************/
    9129             : /*                             IsCompound()                             */
    9130             : /************************************************************************/
    9131             : 
    9132             : /**
    9133             :  * \brief Check if coordinate system is compound.
    9134             :  *
    9135             :  * This method is the same as the C function OSRIsCompound().
    9136             :  *
    9137             :  * @return TRUE if this is rooted with a COMPD_CS node.
    9138             :  */
    9139             : 
    9140       41170 : int OGRSpatialReference::IsCompound() const
    9141             : 
    9142             : {
    9143       41170 :     TAKE_OPTIONAL_LOCK();
    9144             : 
    9145       41170 :     d->refreshProjObj();
    9146       41170 :     d->demoteFromBoundCRS();
    9147       41170 :     bool isCompound = d->m_pjType == PJ_TYPE_COMPOUND_CRS;
    9148       41170 :     d->undoDemoteFromBoundCRS();
    9149       82340 :     return isCompound;
    9150             : }
    9151             : 
    9152             : /************************************************************************/
    9153             : /*                           OSRIsCompound()                            */
    9154             : /************************************************************************/
    9155             : 
    9156             : /**
    9157             :  * \brief Check if the coordinate system is compound.
    9158             :  *
    9159             :  * This function is the same as OGRSpatialReference::IsCompound().
    9160             :  */
    9161           5 : int OSRIsCompound(OGRSpatialReferenceH hSRS)
    9162             : 
    9163             : {
    9164           5 :     VALIDATE_POINTER1(hSRS, "OSRIsCompound", 0);
    9165             : 
    9166           5 :     return ToPointer(hSRS)->IsCompound();
    9167             : }
    9168             : 
    9169             : /************************************************************************/
    9170             : /*                            IsProjected()                             */
    9171             : /************************************************************************/
    9172             : 
    9173             : /**
    9174             :  * \brief Check if projected coordinate system.
    9175             :  *
    9176             :  * This method is the same as the C function OSRIsProjected().
    9177             :  *
    9178             :  * @return TRUE if this contains a PROJCS node indicating a it is a
    9179             :  * projected coordinate system. Also if it is a CompoundCRS made of a
    9180             :  * ProjectedCRS
    9181             :  */
    9182             : 
    9183       43374 : int OGRSpatialReference::IsProjected() const
    9184             : 
    9185             : {
    9186       43374 :     TAKE_OPTIONAL_LOCK();
    9187             : 
    9188       43374 :     d->refreshProjObj();
    9189       43374 :     d->demoteFromBoundCRS();
    9190       43374 :     bool isProjected = d->m_pjType == PJ_TYPE_PROJECTED_CRS;
    9191       43374 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    9192             :     {
    9193             :         auto horizCRS =
    9194         150 :             proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 0);
    9195         150 :         if (horizCRS)
    9196             :         {
    9197         150 :             auto horizCRSType = proj_get_type(horizCRS);
    9198         150 :             isProjected = horizCRSType == PJ_TYPE_PROJECTED_CRS;
    9199         150 :             if (horizCRSType == PJ_TYPE_BOUND_CRS)
    9200             :             {
    9201           6 :                 auto base = proj_get_source_crs(d->getPROJContext(), horizCRS);
    9202           6 :                 if (base)
    9203             :                 {
    9204           6 :                     isProjected = proj_get_type(base) == PJ_TYPE_PROJECTED_CRS;
    9205           6 :                     proj_destroy(base);
    9206             :                 }
    9207             :             }
    9208         150 :             proj_destroy(horizCRS);
    9209             :         }
    9210             :     }
    9211       43374 :     d->undoDemoteFromBoundCRS();
    9212       86748 :     return isProjected;
    9213             : }
    9214             : 
    9215             : /************************************************************************/
    9216             : /*                           OSRIsProjected()                           */
    9217             : /************************************************************************/
    9218             : /**
    9219             :  * \brief Check if projected coordinate system.
    9220             :  *
    9221             :  * This function is the same as OGRSpatialReference::IsProjected().
    9222             :  */
    9223         413 : int OSRIsProjected(OGRSpatialReferenceH hSRS)
    9224             : 
    9225             : {
    9226         413 :     VALIDATE_POINTER1(hSRS, "OSRIsProjected", 0);
    9227             : 
    9228         413 :     return ToPointer(hSRS)->IsProjected();
    9229             : }
    9230             : 
    9231             : /************************************************************************/
    9232             : /*                            IsGeocentric()                            */
    9233             : /************************************************************************/
    9234             : 
    9235             : /**
    9236             :  * \brief Check if geocentric coordinate system.
    9237             :  *
    9238             :  * This method is the same as the C function OSRIsGeocentric().
    9239             :  *
    9240             :  * @return TRUE if this contains a GEOCCS node indicating a it is a
    9241             :  * geocentric coordinate system.
    9242             :  *
    9243             :  */
    9244             : 
    9245       17476 : int OGRSpatialReference::IsGeocentric() const
    9246             : 
    9247             : {
    9248       17476 :     TAKE_OPTIONAL_LOCK();
    9249             : 
    9250       17476 :     d->refreshProjObj();
    9251       17476 :     d->demoteFromBoundCRS();
    9252       17476 :     bool isGeocentric = d->m_pjType == PJ_TYPE_GEOCENTRIC_CRS;
    9253       17476 :     d->undoDemoteFromBoundCRS();
    9254       34952 :     return isGeocentric;
    9255             : }
    9256             : 
    9257             : /************************************************************************/
    9258             : /*                           OSRIsGeocentric()                          */
    9259             : /************************************************************************/
    9260             : /**
    9261             :  * \brief Check if geocentric coordinate system.
    9262             :  *
    9263             :  * This function is the same as OGRSpatialReference::IsGeocentric().
    9264             :  *
    9265             :  */
    9266           2 : int OSRIsGeocentric(OGRSpatialReferenceH hSRS)
    9267             : 
    9268             : {
    9269           2 :     VALIDATE_POINTER1(hSRS, "OSRIsGeocentric", 0);
    9270             : 
    9271           2 :     return ToPointer(hSRS)->IsGeocentric();
    9272             : }
    9273             : 
    9274             : /************************************************************************/
    9275             : /*                            IsEmpty()                                 */
    9276             : /************************************************************************/
    9277             : 
    9278             : /**
    9279             :  * \brief Return if the SRS is not set.
    9280             :  */
    9281             : 
    9282      114978 : bool OGRSpatialReference::IsEmpty() const
    9283             : {
    9284      114978 :     TAKE_OPTIONAL_LOCK();
    9285             : 
    9286      114978 :     d->refreshProjObj();
    9287      229956 :     return d->m_pj_crs == nullptr;
    9288             : }
    9289             : 
    9290             : /************************************************************************/
    9291             : /*                            IsGeographic()                            */
    9292             : /************************************************************************/
    9293             : 
    9294             : /**
    9295             :  * \brief Check if geographic coordinate system.
    9296             :  *
    9297             :  * This method is the same as the C function OSRIsGeographic().
    9298             :  *
    9299             :  * @return TRUE if this spatial reference is geographic ... that is the
    9300             :  * root is a GEOGCS node. Also if it is a CompoundCRS made of a
    9301             :  * GeographicCRS
    9302             :  */
    9303             : 
    9304       59976 : int OGRSpatialReference::IsGeographic() const
    9305             : 
    9306             : {
    9307       59976 :     TAKE_OPTIONAL_LOCK();
    9308             : 
    9309       59976 :     d->refreshProjObj();
    9310       59976 :     d->demoteFromBoundCRS();
    9311       84005 :     bool isGeog = d->m_pjType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    9312       24029 :                   d->m_pjType == PJ_TYPE_GEOGRAPHIC_3D_CRS;
    9313       59976 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    9314             :     {
    9315             :         auto horizCRS =
    9316         300 :             proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 0);
    9317         300 :         if (horizCRS)
    9318             :         {
    9319         300 :             auto horizCRSType = proj_get_type(horizCRS);
    9320         300 :             isGeog = horizCRSType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    9321             :                      horizCRSType == PJ_TYPE_GEOGRAPHIC_3D_CRS;
    9322         300 :             if (horizCRSType == PJ_TYPE_BOUND_CRS)
    9323             :             {
    9324          13 :                 auto base = proj_get_source_crs(d->getPROJContext(), horizCRS);
    9325          13 :                 if (base)
    9326             :                 {
    9327          13 :                     horizCRSType = proj_get_type(base);
    9328          13 :                     isGeog = horizCRSType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    9329             :                              horizCRSType == PJ_TYPE_GEOGRAPHIC_3D_CRS;
    9330          13 :                     proj_destroy(base);
    9331             :                 }
    9332             :             }
    9333         300 :             proj_destroy(horizCRS);
    9334             :         }
    9335             :     }
    9336       59976 :     d->undoDemoteFromBoundCRS();
    9337      119952 :     return isGeog;
    9338             : }
    9339             : 
    9340             : /************************************************************************/
    9341             : /*                          OSRIsGeographic()                           */
    9342             : /************************************************************************/
    9343             : /**
    9344             :  * \brief Check if geographic coordinate system.
    9345             :  *
    9346             :  * This function is the same as OGRSpatialReference::IsGeographic().
    9347             :  */
    9348         304 : int OSRIsGeographic(OGRSpatialReferenceH hSRS)
    9349             : 
    9350             : {
    9351         304 :     VALIDATE_POINTER1(hSRS, "OSRIsGeographic", 0);
    9352             : 
    9353         304 :     return ToPointer(hSRS)->IsGeographic();
    9354             : }
    9355             : 
    9356             : /************************************************************************/
    9357             : /*                      IsDerivedGeographic()                           */
    9358             : /************************************************************************/
    9359             : 
    9360             : /**
    9361             :  * \brief Check if the CRS is a derived geographic coordinate system.
    9362             :  * (for example a rotated long/lat grid)
    9363             :  *
    9364             :  * This method is the same as the C function OSRIsDerivedGeographic().
    9365             :  *
    9366             :  * @since GDAL 3.1.0 and PROJ 6.3.0
    9367             :  */
    9368             : 
    9369       15296 : int OGRSpatialReference::IsDerivedGeographic() const
    9370             : 
    9371             : {
    9372       15296 :     TAKE_OPTIONAL_LOCK();
    9373             : 
    9374       15296 :     d->refreshProjObj();
    9375       15296 :     d->demoteFromBoundCRS();
    9376       24918 :     const bool isGeog = d->m_pjType == PJ_TYPE_GEOGRAPHIC_2D_CRS ||
    9377        9622 :                         d->m_pjType == PJ_TYPE_GEOGRAPHIC_3D_CRS;
    9378             :     const bool isDerivedGeographic =
    9379       15296 :         isGeog && proj_is_derived_crs(d->getPROJContext(), d->m_pj_crs);
    9380       15296 :     d->undoDemoteFromBoundCRS();
    9381       30592 :     return isDerivedGeographic ? TRUE : FALSE;
    9382             : }
    9383             : 
    9384             : /************************************************************************/
    9385             : /*                      OSRIsDerivedGeographic()                        */
    9386             : /************************************************************************/
    9387             : /**
    9388             :  * \brief Check if the CRS is a derived geographic coordinate system.
    9389             :  * (for example a rotated long/lat grid)
    9390             :  *
    9391             :  * This function is the same as OGRSpatialReference::IsDerivedGeographic().
    9392             :  */
    9393           1 : int OSRIsDerivedGeographic(OGRSpatialReferenceH hSRS)
    9394             : 
    9395             : {
    9396           1 :     VALIDATE_POINTER1(hSRS, "OSRIsDerivedGeographic", 0);
    9397             : 
    9398           1 :     return ToPointer(hSRS)->IsDerivedGeographic();
    9399             : }
    9400             : 
    9401             : /************************************************************************/
    9402             : /*                      IsDerivedProjected()                            */
    9403             : /************************************************************************/
    9404             : 
    9405             : /**
    9406             :  * \brief Check if the CRS is a derived projected coordinate system.
    9407             :  *
    9408             :  * This method is the same as the C function OSRIsDerivedGeographic().
    9409             :  *
    9410             :  * @since GDAL 3.9.0 (and may only return non-zero starting with PROJ 9.2.0)
    9411             :  */
    9412             : 
    9413           0 : int OGRSpatialReference::IsDerivedProjected() const
    9414             : 
    9415             : {
    9416             : #if PROJ_AT_LEAST_VERSION(9, 2, 0)
    9417             :     TAKE_OPTIONAL_LOCK();
    9418             :     d->refreshProjObj();
    9419             :     d->demoteFromBoundCRS();
    9420             :     const bool isDerivedProjected =
    9421             :         d->m_pjType == PJ_TYPE_DERIVED_PROJECTED_CRS;
    9422             :     d->undoDemoteFromBoundCRS();
    9423             :     return isDerivedProjected ? TRUE : FALSE;
    9424             : #else
    9425           0 :     return FALSE;
    9426             : #endif
    9427             : }
    9428             : 
    9429             : /************************************************************************/
    9430             : /*                      OSRIsDerivedProjected()                         */
    9431             : /************************************************************************/
    9432             : /**
    9433             :  * \brief Check if the CRS is a derived projected coordinate system.
    9434             :  *
    9435             :  * This function is the same as OGRSpatialReference::IsDerivedProjected().
    9436             :  *
    9437             :  * @since GDAL 3.9.0 (and may only return non-zero starting with PROJ 9.2.0)
    9438             :  */
    9439           0 : int OSRIsDerivedProjected(OGRSpatialReferenceH hSRS)
    9440             : 
    9441             : {
    9442           0 :     VALIDATE_POINTER1(hSRS, "OSRIsDerivedProjected", 0);
    9443             : 
    9444           0 :     return ToPointer(hSRS)->IsDerivedProjected();
    9445             : }
    9446             : 
    9447             : /************************************************************************/
    9448             : /*                              IsLocal()                               */
    9449             : /************************************************************************/
    9450             : 
    9451             : /**
    9452             :  * \brief Check if local coordinate system.
    9453             :  *
    9454             :  * This method is the same as the C function OSRIsLocal().
    9455             :  *
    9456             :  * @return TRUE if this spatial reference is local ... that is the
    9457             :  * root is a LOCAL_CS node.
    9458             :  */
    9459             : 
    9460        7952 : int OGRSpatialReference::IsLocal() const
    9461             : 
    9462             : {
    9463        7952 :     TAKE_OPTIONAL_LOCK();
    9464        7952 :     d->refreshProjObj();
    9465       15904 :     return d->m_pjType == PJ_TYPE_ENGINEERING_CRS;
    9466             : }
    9467             : 
    9468             : /************************************************************************/
    9469             : /*                          OSRIsLocal()                                */
    9470             : /************************************************************************/
    9471             : /**
    9472             :  * \brief Check if local coordinate system.
    9473             :  *
    9474             :  * This function is the same as OGRSpatialReference::IsLocal().
    9475             :  */
    9476           8 : int OSRIsLocal(OGRSpatialReferenceH hSRS)
    9477             : 
    9478             : {
    9479           8 :     VALIDATE_POINTER1(hSRS, "OSRIsLocal", 0);
    9480             : 
    9481           8 :     return ToPointer(hSRS)->IsLocal();
    9482             : }
    9483             : 
    9484             : /************************************************************************/
    9485             : /*                            IsVertical()                              */
    9486             : /************************************************************************/
    9487             : 
    9488             : /**
    9489             :  * \brief Check if vertical coordinate system.
    9490             :  *
    9491             :  * This method is the same as the C function OSRIsVertical().
    9492             :  *
    9493             :  * @return TRUE if this contains a VERT_CS node indicating a it is a
    9494             :  * vertical coordinate system. Also if it is a CompoundCRS made of a
    9495             :  * VerticalCRS
    9496             :  *
    9497             :  */
    9498             : 
    9499        8935 : int OGRSpatialReference::IsVertical() const
    9500             : 
    9501             : {
    9502        8935 :     TAKE_OPTIONAL_LOCK();
    9503        8935 :     d->refreshProjObj();
    9504        8935 :     d->demoteFromBoundCRS();
    9505        8935 :     bool isVertical = d->m_pjType == PJ_TYPE_VERTICAL_CRS;
    9506        8935 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    9507             :     {
    9508             :         auto vertCRS =
    9509          33 :             proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 1);
    9510          33 :         if (vertCRS)
    9511             :         {
    9512          33 :             const auto vertCRSType = proj_get_type(vertCRS);
    9513          33 :             isVertical = vertCRSType == PJ_TYPE_VERTICAL_CRS;
    9514          33 :             if (vertCRSType == PJ_TYPE_BOUND_CRS)
    9515             :             {
    9516           0 :                 auto base = proj_get_source_crs(d->getPROJContext(), vertCRS);
    9517           0 :                 if (base)
    9518             :                 {
    9519           0 :                     isVertical = proj_get_type(base) == PJ_TYPE_VERTICAL_CRS;
    9520           0 :                     proj_destroy(base);
    9521             :                 }
    9522             :             }
    9523          33 :             proj_destroy(vertCRS);
    9524             :         }
    9525             :     }
    9526        8935 :     d->undoDemoteFromBoundCRS();
    9527       17870 :     return isVertical;
    9528             : }
    9529             : 
    9530             : /************************************************************************/
    9531             : /*                           OSRIsVertical()                            */
    9532             : /************************************************************************/
    9533             : /**
    9534             :  * \brief Check if vertical coordinate system.
    9535             :  *
    9536             :  * This function is the same as OGRSpatialReference::IsVertical().
    9537             :  *
    9538             :  */
    9539           0 : int OSRIsVertical(OGRSpatialReferenceH hSRS)
    9540             : 
    9541             : {
    9542           0 :     VALIDATE_POINTER1(hSRS, "OSRIsVertical", 0);
    9543             : 
    9544           0 :     return ToPointer(hSRS)->IsVertical();
    9545             : }
    9546             : 
    9547             : /************************************************************************/
    9548             : /*                            IsDynamic()                               */
    9549             : /************************************************************************/
    9550             : 
    9551             : /**
    9552             :  * \brief Check if a CRS is a dynamic CRS.
    9553             :  *
    9554             :  * A dynamic CRS relies on a dynamic datum, that is a datum that is not
    9555             :  * plate-fixed.
    9556             :  *
    9557             :  * This method is the same as the C function OSRIsDynamic().
    9558             :  *
    9559             :  * @return true if the CRS is dynamic
    9560             :  *
    9561             :  * @since OGR 3.4.0
    9562             :  *
    9563             :  * @see HasPointMotionOperation()
    9564             :  */
    9565             : 
    9566       15285 : bool OGRSpatialReference::IsDynamic() const
    9567             : 
    9568             : {
    9569       15285 :     TAKE_OPTIONAL_LOCK();
    9570       15285 :     bool isDynamic = false;
    9571       15285 :     d->refreshProjObj();
    9572       15285 :     d->demoteFromBoundCRS();
    9573       15285 :     auto ctxt = d->getPROJContext();
    9574       15285 :     PJ *horiz = nullptr;
    9575       15285 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
    9576             :     {
    9577          96 :         horiz = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 0);
    9578             :     }
    9579       15189 :     else if (d->m_pj_crs)
    9580             :     {
    9581       15076 :         horiz = proj_clone(ctxt, d->m_pj_crs);
    9582             :     }
    9583       15285 :     if (horiz && proj_get_type(horiz) == PJ_TYPE_BOUND_CRS)
    9584             :     {
    9585           6 :         auto baseCRS = proj_get_source_crs(ctxt, horiz);
    9586           6 :         if (baseCRS)
    9587             :         {
    9588           6 :             proj_destroy(horiz);
    9589           6 :             horiz = baseCRS;
    9590             :         }
    9591             :     }
    9592       15285 :     auto datum = horiz ? proj_crs_get_datum(ctxt, horiz) : nullptr;
    9593       15285 :     if (datum)
    9594             :     {
    9595       15137 :         const auto type = proj_get_type(datum);
    9596       15137 :         isDynamic = type == PJ_TYPE_DYNAMIC_GEODETIC_REFERENCE_FRAME ||
    9597             :                     type == PJ_TYPE_DYNAMIC_VERTICAL_REFERENCE_FRAME;
    9598       15137 :         if (!isDynamic)
    9599             :         {
    9600       15137 :             const char *auth_name = proj_get_id_auth_name(datum, 0);
    9601       15137 :             const char *code = proj_get_id_code(datum, 0);
    9602       15137 :             if (auth_name && code && EQUAL(auth_name, "EPSG") &&
    9603       14688 :                 EQUAL(code, "6326"))
    9604             :             {
    9605        9568 :                 isDynamic = true;
    9606             :             }
    9607             :         }
    9608       15137 :         proj_destroy(datum);
    9609             :     }
    9610             : #if PROJ_VERSION_MAJOR > 7 ||                                                  \
    9611             :     (PROJ_VERSION_MAJOR == 7 && PROJ_VERSION_MINOR >= 2)
    9612             :     else
    9613             :     {
    9614             :         auto ensemble =
    9615             :             horiz ? proj_crs_get_datum_ensemble(ctxt, horiz) : nullptr;
    9616             :         if (ensemble)
    9617             :         {
    9618             :             auto member = proj_datum_ensemble_get_member(ctxt, ensemble, 0);
    9619             :             if (member)
    9620             :             {
    9621             :                 const auto type = proj_get_type(member);
    9622             :                 isDynamic = type == PJ_TYPE_DYNAMIC_GEODETIC_REFERENCE_FRAME ||
    9623             :                             type == PJ_TYPE_DYNAMIC_VERTICAL_REFERENCE_FRAME;
    9624             :                 proj_destroy(member);
    9625             :             }
    9626             :             proj_destroy(ensemble);
    9627             :         }
    9628             :     }
    9629             : #endif
    9630       15285 :     proj_destroy(horiz);
    9631       15285 :     d->undoDemoteFromBoundCRS();
    9632       30570 :     return isDynamic;
    9633             : }
    9634             : 
    9635             : /************************************************************************/
    9636             : /*                           OSRIsDynamic()                             */
    9637             : /************************************************************************/
    9638             : /**
    9639             :  * \brief Check if a CRS is a dynamic CRS.
    9640             :  *
    9641             :  * A dynamic CRS relies on a dynamic datum, that is a datum that is not
    9642             :  * plate-fixed.
    9643             :  *
    9644             :  * This function is the same as OGRSpatialReference::IsDynamic().
    9645             :  *
    9646             :  * @since OGR 3.4.0
    9647             :  */
    9648           0 : int OSRIsDynamic(OGRSpatialReferenceH hSRS)
    9649             : 
    9650             : {
    9651           0 :     VALIDATE_POINTER1(hSRS, "OSRIsDynamic", 0);
    9652             : 
    9653           0 :     return ToPointer(hSRS)->IsDynamic();
    9654             : }
    9655             : 
    9656             : /************************************************************************/
    9657             : /*                         HasPointMotionOperation()                    */
    9658             : /************************************************************************/
    9659             : 
    9660             : /**
    9661             :  * \brief Check if a CRS has at least an associated point motion operation.
    9662             :  *
    9663             :  * Some CRS are not formally declared as dynamic, but may behave as such
    9664             :  * in practice due to the presence of point motion operation, to perform
    9665             :  * coordinate epoch changes within the CRS. Typically NAD83(CSRS)v7
    9666             :  *
    9667             :  * @return true if the CRS has at least an associated point motion operation.
    9668             :  *
    9669             :  * @since OGR 3.8.0 and PROJ 9.4.0
    9670             :  *
    9671             :  * @see IsDynamic()
    9672             :  */
    9673             : 
    9674           5 : bool OGRSpatialReference::HasPointMotionOperation() const
    9675             : 
    9676             : {
    9677             : #if PROJ_VERSION_MAJOR > 9 ||                                                  \
    9678             :     (PROJ_VERSION_MAJOR == 9 && PROJ_VERSION_MINOR >= 4)
    9679             :     TAKE_OPTIONAL_LOCK();
    9680             :     d->refreshProjObj();
    9681             :     d->demoteFromBoundCRS();
    9682             :     auto ctxt = d->getPROJContext();
    9683             :     auto res =
    9684             :         CPL_TO_BOOL(proj_crs_has_point_motion_operation(ctxt, d->m_pj_crs));
    9685             :     d->undoDemoteFromBoundCRS();
    9686             :     return res;
    9687             : #else
    9688           5 :     return false;
    9689             : #endif
    9690             : }
    9691             : 
    9692             : /************************************************************************/
    9693             : /*                      OSRHasPointMotionOperation()                    */
    9694             : /************************************************************************/
    9695             : 
    9696             : /**
    9697             :  * \brief Check if a CRS has at least an associated point motion operation.
    9698             :  *
    9699             :  * Some CRS are not formally declared as dynamic, but may behave as such
    9700             :  * in practice due to the presence of point motion operation, to perform
    9701             :  * coordinate epoch changes within the CRS. Typically NAD83(CSRS)v7
    9702             :  *
    9703             :  * This function is the same as OGRSpatialReference::HasPointMotionOperation().
    9704             :  *
    9705             :  * @since OGR 3.8.0 and PROJ 9.4.0
    9706             :  */
    9707           0 : int OSRHasPointMotionOperation(OGRSpatialReferenceH hSRS)
    9708             : 
    9709             : {
    9710           0 :     VALIDATE_POINTER1(hSRS, "OSRHasPointMotionOperation", 0);
    9711             : 
    9712           0 :     return ToPointer(hSRS)->HasPointMotionOperation();
    9713             : }
    9714             : 
    9715             : /************************************************************************/
    9716             : /*                            CloneGeogCS()                             */
    9717             : /************************************************************************/
    9718             : 
    9719             : /**
    9720             :  * \brief Make a duplicate of the GEOGCS node of this OGRSpatialReference
    9721             :  * object.
    9722             :  *
    9723             :  * @return a new SRS, which becomes the responsibility of the caller.
    9724             :  */
    9725        4176 : OGRSpatialReference *OGRSpatialReference::CloneGeogCS() const
    9726             : 
    9727             : {
    9728        8352 :     TAKE_OPTIONAL_LOCK();
    9729        4176 :     d->refreshProjObj();
    9730        4176 :     if (d->m_pj_crs)
    9731             :     {
    9732        4176 :         if (d->m_pjType == PJ_TYPE_ENGINEERING_CRS)
    9733           0 :             return nullptr;
    9734             : 
    9735             :         auto geodCRS =
    9736        4176 :             proj_crs_get_geodetic_crs(d->getPROJContext(), d->m_pj_crs);
    9737        4176 :         if (geodCRS)
    9738             :         {
    9739        4176 :             OGRSpatialReference *poNewSRS = new OGRSpatialReference();
    9740        4176 :             if (d->m_pjType == PJ_TYPE_BOUND_CRS)
    9741             :             {
    9742             :                 PJ *hub_crs =
    9743          13 :                     proj_get_target_crs(d->getPROJContext(), d->m_pj_crs);
    9744          13 :                 PJ *co = proj_crs_get_coordoperation(d->getPROJContext(),
    9745          13 :                                                      d->m_pj_crs);
    9746          13 :                 auto temp = proj_crs_create_bound_crs(d->getPROJContext(),
    9747             :                                                       geodCRS, hub_crs, co);
    9748          13 :                 proj_destroy(geodCRS);
    9749          13 :                 geodCRS = temp;
    9750          13 :                 proj_destroy(hub_crs);
    9751          13 :                 proj_destroy(co);
    9752             :             }
    9753             : 
    9754             :             /* --------------------------------------------------------------------
    9755             :              */
    9756             :             /*      We have to reconstruct the GEOGCS node for geocentric */
    9757             :             /*      coordinate systems. */
    9758             :             /* --------------------------------------------------------------------
    9759             :              */
    9760        4176 :             if (proj_get_type(geodCRS) == PJ_TYPE_GEOCENTRIC_CRS)
    9761             :             {
    9762           0 :                 auto datum = proj_crs_get_datum(d->getPROJContext(), geodCRS);
    9763             : #if PROJ_VERSION_MAJOR > 7 ||                                                  \
    9764             :     (PROJ_VERSION_MAJOR == 7 && PROJ_VERSION_MINOR >= 2)
    9765             :                 if (datum == nullptr)
    9766             :                 {
    9767             :                     datum = proj_crs_get_datum_ensemble(d->getPROJContext(),
    9768             :                                                         geodCRS);
    9769             :                 }
    9770             : #endif
    9771           0 :                 if (datum)
    9772             :                 {
    9773           0 :                     auto cs = proj_create_ellipsoidal_2D_cs(
    9774             :                         d->getPROJContext(), PJ_ELLPS2D_LATITUDE_LONGITUDE,
    9775             :                         nullptr, 0);
    9776           0 :                     auto temp = proj_create_geographic_crs_from_datum(
    9777             :                         d->getPROJContext(), "unnamed", datum, cs);
    9778           0 :                     proj_destroy(datum);
    9779           0 :                     proj_destroy(cs);
    9780           0 :                     proj_destroy(geodCRS);
    9781           0 :                     geodCRS = temp;
    9782             :                 }
    9783             :             }
    9784             : 
    9785        4176 :             poNewSRS->d->setPjCRS(geodCRS);
    9786        4176 :             if (d->m_axisMappingStrategy == OAMS_TRADITIONAL_GIS_ORDER)
    9787        2733 :                 poNewSRS->SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
    9788        4176 :             return poNewSRS;
    9789             :         }
    9790             :     }
    9791           0 :     return nullptr;
    9792             : }
    9793             : 
    9794             : /************************************************************************/
    9795             : /*                           OSRCloneGeogCS()                           */
    9796             : /************************************************************************/
    9797             : /**
    9798             :  * \brief Make a duplicate of the GEOGCS node of this OGRSpatialReference
    9799             :  * object.
    9800             :  *
    9801             :  * This function is the same as OGRSpatialReference::CloneGeogCS().
    9802             :  */
    9803         126 : OGRSpatialReferenceH CPL_STDCALL OSRCloneGeogCS(OGRSpatialReferenceH hSource)
    9804             : 
    9805             : {
    9806         126 :     VALIDATE_POINTER1(hSource, "OSRCloneGeogCS", nullptr);
    9807             : 
    9808         126 :     return ToHandle(ToPointer(hSource)->CloneGeogCS());
    9809             : }
    9810             : 
    9811             : /************************************************************************/
    9812             : /*                            IsSameGeogCS()                            */
    9813             : /************************************************************************/
    9814             : 
    9815             : /**
    9816             :  * \brief Do the GeogCS'es match?
    9817             :  *
    9818             :  * This method is the same as the C function OSRIsSameGeogCS().
    9819             :  *
    9820             :  * @param poOther the SRS being compared against.
    9821             :  *
    9822             :  * @return TRUE if they are the same or FALSE otherwise.
    9823             :  */
    9824             : 
    9825        8528 : int OGRSpatialReference::IsSameGeogCS(const OGRSpatialReference *poOther) const
    9826             : 
    9827             : {
    9828        8528 :     return IsSameGeogCS(poOther, nullptr);
    9829             : }
    9830             : 
    9831             : /**
    9832             :  * \brief Do the GeogCS'es match?
    9833             :  *
    9834             :  * This method is the same as the C function OSRIsSameGeogCS().
    9835             :  *
    9836             :  * @param poOther the SRS being compared against.
    9837             :  * @param papszOptions options. ignored
    9838             :  *
    9839             :  * @return TRUE if they are the same or FALSE otherwise.
    9840             :  */
    9841             : 
    9842        8528 : int OGRSpatialReference::IsSameGeogCS(const OGRSpatialReference *poOther,
    9843             :                                       const char *const *papszOptions) const
    9844             : 
    9845             : {
    9846       17056 :     TAKE_OPTIONAL_LOCK();
    9847             : 
    9848        8528 :     CPL_IGNORE_RET_VAL(papszOptions);
    9849             : 
    9850        8528 :     d->refreshProjObj();
    9851        8528 :     poOther->d->refreshProjObj();
    9852        8528 :     if (!d->m_pj_crs || !poOther->d->m_pj_crs)
    9853           0 :         return FALSE;
    9854        8528 :     if (d->m_pjType == PJ_TYPE_ENGINEERING_CRS ||
    9855        8528 :         d->m_pjType == PJ_TYPE_VERTICAL_CRS ||
    9856       25584 :         poOther->d->m_pjType == PJ_TYPE_ENGINEERING_CRS ||
    9857        8528 :         poOther->d->m_pjType == PJ_TYPE_VERTICAL_CRS)
    9858             :     {
    9859           0 :         return FALSE;
    9860             :     }
    9861             : 
    9862        8528 :     auto geodCRS = proj_crs_get_geodetic_crs(d->getPROJContext(), d->m_pj_crs);
    9863             :     auto otherGeodCRS =
    9864        8528 :         proj_crs_get_geodetic_crs(d->getPROJContext(), poOther->d->m_pj_crs);
    9865        8528 :     if (!geodCRS || !otherGeodCRS)
    9866             :     {
    9867           0 :         proj_destroy(geodCRS);
    9868           0 :         proj_destroy(otherGeodCRS);
    9869           0 :         return FALSE;
    9870             :     }
    9871             : 
    9872        8528 :     int ret = proj_is_equivalent_to(
    9873             :         geodCRS, otherGeodCRS, PJ_COMP_EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS);
    9874             : 
    9875        8528 :     proj_destroy(geodCRS);
    9876        8528 :     proj_destroy(otherGeodCRS);
    9877        8528 :     return ret;
    9878             : }
    9879             : 
    9880             : /************************************************************************/
    9881             : /*                          OSRIsSameGeogCS()                           */
    9882             : /************************************************************************/
    9883             : 
    9884             : /**
    9885             :  * \brief Do the GeogCS'es match?
    9886             :  *
    9887             :  * This function is the same as OGRSpatialReference::IsSameGeogCS().
    9888             :  */
    9889           0 : int OSRIsSameGeogCS(OGRSpatialReferenceH hSRS1, OGRSpatialReferenceH hSRS2)
    9890             : 
    9891             : {
    9892           0 :     VALIDATE_POINTER1(hSRS1, "OSRIsSameGeogCS", 0);
    9893           0 :     VALIDATE_POINTER1(hSRS2, "OSRIsSameGeogCS", 0);
    9894             : 
    9895           0 :     return ToPointer(hSRS1)->IsSameGeogCS(ToPointer(hSRS2));
    9896             : }
    9897             : 
    9898             : /************************************************************************/
    9899             : /*                            IsSameVertCS()                            */
    9900             : /************************************************************************/
    9901             : 
    9902             : /**
    9903             :  * \brief Do the VertCS'es match?
    9904             :  *
    9905             :  * This method is the same as the C function OSRIsSameVertCS().
    9906             :  *
    9907             :  * @param poOther the SRS being compared against.
    9908             :  *
    9909             :  * @return TRUE if they are the same or FALSE otherwise.
    9910             :  */
    9911             : 
    9912           0 : int OGRSpatialReference::IsSameVertCS(const OGRSpatialReference *poOther) const
    9913             : 
    9914             : {
    9915           0 :     TAKE_OPTIONAL_LOCK();
    9916             : 
    9917             :     /* -------------------------------------------------------------------- */
    9918             :     /*      Does the datum name match?                                      */
    9919             :     /* -------------------------------------------------------------------- */
    9920           0 :     const char *pszThisValue = this->GetAttrValue("VERT_DATUM");
    9921           0 :     const char *pszOtherValue = poOther->GetAttrValue("VERT_DATUM");
    9922             : 
    9923           0 :     if (pszThisValue == nullptr || pszOtherValue == nullptr ||
    9924           0 :         !EQUAL(pszThisValue, pszOtherValue))
    9925           0 :         return FALSE;
    9926             : 
    9927             :     /* -------------------------------------------------------------------- */
    9928             :     /*      Do the units match?                                             */
    9929             :     /* -------------------------------------------------------------------- */
    9930           0 :     pszThisValue = this->GetAttrValue("VERT_CS|UNIT", 1);
    9931           0 :     if (pszThisValue == nullptr)
    9932           0 :         pszThisValue = "1.0";
    9933             : 
    9934           0 :     pszOtherValue = poOther->GetAttrValue("VERT_CS|UNIT", 1);
    9935           0 :     if (pszOtherValue == nullptr)
    9936           0 :         pszOtherValue = "1.0";
    9937             : 
    9938           0 :     if (std::abs(CPLAtof(pszOtherValue) - CPLAtof(pszThisValue)) > 0.00000001)
    9939           0 :         return FALSE;
    9940             : 
    9941           0 :     return TRUE;
    9942             : }
    9943             : 
    9944             : /************************************************************************/
    9945             : /*                          OSRIsSameVertCS()                           */
    9946             : /************************************************************************/
    9947             : 
    9948             : /**
    9949             :  * \brief Do the VertCS'es match?
    9950             :  *
    9951             :  * This function is the same as OGRSpatialReference::IsSameVertCS().
    9952             :  */
    9953           0 : int OSRIsSameVertCS(OGRSpatialReferenceH hSRS1, OGRSpatialReferenceH hSRS2)
    9954             : 
    9955             : {
    9956           0 :     VALIDATE_POINTER1(hSRS1, "OSRIsSameVertCS", 0);
    9957           0 :     VALIDATE_POINTER1(hSRS2, "OSRIsSameVertCS", 0);
    9958             : 
    9959           0 :     return ToPointer(hSRS1)->IsSameVertCS(ToPointer(hSRS2));
    9960             : }
    9961             : 
    9962             : /************************************************************************/
    9963             : /*                               IsSame()                               */
    9964             : /************************************************************************/
    9965             : 
    9966             : /**
    9967             :  * \brief Do these two spatial references describe the same system ?
    9968             :  *
    9969             :  * @param poOtherSRS the SRS being compared to.
    9970             :  *
    9971             :  * @return TRUE if equivalent or FALSE otherwise.
    9972             :  */
    9973             : 
    9974       22974 : int OGRSpatialReference::IsSame(const OGRSpatialReference *poOtherSRS) const
    9975             : 
    9976             : {
    9977       22974 :     return IsSame(poOtherSRS, nullptr);
    9978             : }
    9979             : 
    9980             : /**
    9981             :  * \brief Do these two spatial references describe the same system ?
    9982             :  *
    9983             :  * This also takes into account the data axis to CRS axis mapping by default
    9984             :  *
    9985             :  * @param poOtherSRS the SRS being compared to.
    9986             :  * @param papszOptions options. NULL or NULL terminated list of options.
    9987             :  * Currently supported options are:
    9988             :  * <ul>
    9989             :  * <li>IGNORE_DATA_AXIS_TO_SRS_AXIS_MAPPING=YES/NO. Defaults to NO</li>
    9990             :  * <li>CRITERION=STRICT/EQUIVALENT/EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS.
    9991             :  *     Defaults to EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS.</li>
    9992             :  * <li>IGNORE_COORDINATE_EPOCH=YES/NO. Defaults to NO</li>
    9993             :  * </ul>
    9994             :  *
    9995             :  * @return TRUE if equivalent or FALSE otherwise.
    9996             :  */
    9997             : 
    9998       34507 : int OGRSpatialReference::IsSame(const OGRSpatialReference *poOtherSRS,
    9999             :                                 const char *const *papszOptions) const
   10000             : 
   10001             : {
   10002       69014 :     TAKE_OPTIONAL_LOCK();
   10003             : 
   10004       34507 :     d->refreshProjObj();
   10005       34507 :     poOtherSRS->d->refreshProjObj();
   10006       34507 :     if (!d->m_pj_crs || !poOtherSRS->d->m_pj_crs)
   10007          51 :         return d->m_pj_crs == poOtherSRS->d->m_pj_crs;
   10008       34456 :     if (!CPLTestBool(CSLFetchNameValueDef(
   10009             :             papszOptions, "IGNORE_DATA_AXIS_TO_SRS_AXIS_MAPPING", "NO")))
   10010             :     {
   10011       33825 :         if (d->m_axisMapping != poOtherSRS->d->m_axisMapping)
   10012        3056 :             return false;
   10013             :     }
   10014             : 
   10015       31400 :     if (!CPLTestBool(CSLFetchNameValueDef(papszOptions,
   10016             :                                           "IGNORE_COORDINATE_EPOCH", "NO")))
   10017             :     {
   10018       31026 :         if (d->m_coordinateEpoch != poOtherSRS->d->m_coordinateEpoch)
   10019          27 :             return false;
   10020             :     }
   10021             : 
   10022       31373 :     bool reboundSelf = false;
   10023       31373 :     bool reboundOther = false;
   10024       31424 :     if (d->m_pjType == PJ_TYPE_BOUND_CRS &&
   10025          51 :         poOtherSRS->d->m_pjType != PJ_TYPE_BOUND_CRS)
   10026             :     {
   10027          14 :         d->demoteFromBoundCRS();
   10028          14 :         reboundSelf = true;
   10029             :     }
   10030       62681 :     else if (d->m_pjType != PJ_TYPE_BOUND_CRS &&
   10031       31322 :              poOtherSRS->d->m_pjType == PJ_TYPE_BOUND_CRS)
   10032             :     {
   10033          28 :         poOtherSRS->d->demoteFromBoundCRS();
   10034          28 :         reboundOther = true;
   10035             :     }
   10036             : 
   10037       31373 :     PJ_COMPARISON_CRITERION criterion =
   10038             :         PJ_COMP_EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS;
   10039       31373 :     const char *pszCriterion = CSLFetchNameValueDef(
   10040             :         papszOptions, "CRITERION", "EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS");
   10041       31373 :     if (EQUAL(pszCriterion, "STRICT"))
   10042           0 :         criterion = PJ_COMP_STRICT;
   10043       31373 :     else if (EQUAL(pszCriterion, "EQUIVALENT"))
   10044        8527 :         criterion = PJ_COMP_EQUIVALENT;
   10045       22846 :     else if (!EQUAL(pszCriterion, "EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS"))
   10046             :     {
   10047           0 :         CPLError(CE_Warning, CPLE_NotSupported,
   10048             :                  "Unsupported value for CRITERION: %s", pszCriterion);
   10049             :     }
   10050             :     int ret =
   10051       31373 :         proj_is_equivalent_to(d->m_pj_crs, poOtherSRS->d->m_pj_crs, criterion);
   10052       31373 :     if (reboundSelf)
   10053          14 :         d->undoDemoteFromBoundCRS();
   10054       31373 :     if (reboundOther)
   10055          28 :         poOtherSRS->d->undoDemoteFromBoundCRS();
   10056             : 
   10057       31373 :     return ret;
   10058             : }
   10059             : 
   10060             : /************************************************************************/
   10061             : /*                             OSRIsSame()                              */
   10062             : /************************************************************************/
   10063             : 
   10064             : /**
   10065             :  * \brief Do these two spatial references describe the same system ?
   10066             :  *
   10067             :  * This function is the same as OGRSpatialReference::IsSame().
   10068             :  */
   10069          28 : int OSRIsSame(OGRSpatialReferenceH hSRS1, OGRSpatialReferenceH hSRS2)
   10070             : 
   10071             : {
   10072          28 :     VALIDATE_POINTER1(hSRS1, "OSRIsSame", 0);
   10073          28 :     VALIDATE_POINTER1(hSRS2, "OSRIsSame", 0);
   10074             : 
   10075          28 :     return ToPointer(hSRS1)->IsSame(ToPointer(hSRS2));
   10076             : }
   10077             : 
   10078             : /************************************************************************/
   10079             : /*                             OSRIsSameEx()                            */
   10080             : /************************************************************************/
   10081             : 
   10082             : /**
   10083             :  * \brief Do these two spatial references describe the same system ?
   10084             :  *
   10085             :  * This function is the same as OGRSpatialReference::IsSame().
   10086             :  */
   10087         642 : int OSRIsSameEx(OGRSpatialReferenceH hSRS1, OGRSpatialReferenceH hSRS2,
   10088             :                 const char *const *papszOptions)
   10089             : {
   10090         642 :     VALIDATE_POINTER1(hSRS1, "OSRIsSame", 0);
   10091         642 :     VALIDATE_POINTER1(hSRS2, "OSRIsSame", 0);
   10092             : 
   10093         642 :     return ToPointer(hSRS1)->IsSame(ToPointer(hSRS2), papszOptions);
   10094             : }
   10095             : 
   10096             : /************************************************************************/
   10097             : /*                    convertToOtherProjection()                        */
   10098             : /************************************************************************/
   10099             : 
   10100             : /**
   10101             :  * \brief Convert to another equivalent projection
   10102             :  *
   10103             :  * Currently implemented:
   10104             :  * <ul>
   10105             :  * <li>SRS_PT_MERCATOR_1SP to SRS_PT_MERCATOR_2SP</li>
   10106             :  * <li>SRS_PT_MERCATOR_2SP to SRS_PT_MERCATOR_1SP</li>
   10107             :  * <li>SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP to
   10108             :  * SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP</li>
   10109             :  * <li>SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP to
   10110             :  * SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP</li>
   10111             :  * </ul>
   10112             :  *
   10113             :  * @param pszTargetProjection target projection.
   10114             :  * @param papszOptions lists of options. None supported currently.
   10115             :  * @return a new SRS, or NULL in case of error.
   10116             :  *
   10117             :  */
   10118          91 : OGRSpatialReference *OGRSpatialReference::convertToOtherProjection(
   10119             :     const char *pszTargetProjection,
   10120             :     CPL_UNUSED const char *const *papszOptions) const
   10121             : {
   10122         182 :     TAKE_OPTIONAL_LOCK();
   10123             : 
   10124          91 :     if (pszTargetProjection == nullptr)
   10125           1 :         return nullptr;
   10126             :     int new_code;
   10127          90 :     if (EQUAL(pszTargetProjection, SRS_PT_MERCATOR_1SP))
   10128             :     {
   10129           6 :         new_code = EPSG_CODE_METHOD_MERCATOR_VARIANT_A;
   10130             :     }
   10131          84 :     else if (EQUAL(pszTargetProjection, SRS_PT_MERCATOR_2SP))
   10132             :     {
   10133           7 :         new_code = EPSG_CODE_METHOD_MERCATOR_VARIANT_B;
   10134             :     }
   10135          77 :     else if (EQUAL(pszTargetProjection, SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP))
   10136             :     {
   10137          65 :         new_code = EPSG_CODE_METHOD_LAMBERT_CONIC_CONFORMAL_1SP;
   10138             :     }
   10139          12 :     else if (EQUAL(pszTargetProjection, SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP))
   10140             :     {
   10141          11 :         new_code = EPSG_CODE_METHOD_LAMBERT_CONIC_CONFORMAL_2SP;
   10142             :     }
   10143             :     else
   10144             :     {
   10145           1 :         return nullptr;
   10146             :     }
   10147             : 
   10148          89 :     d->refreshProjObj();
   10149          89 :     d->demoteFromBoundCRS();
   10150          89 :     OGRSpatialReference *poNewSRS = nullptr;
   10151          89 :     if (d->m_pjType == PJ_TYPE_PROJECTED_CRS)
   10152             :     {
   10153             :         auto conv =
   10154          88 :             proj_crs_get_coordoperation(d->getPROJContext(), d->m_pj_crs);
   10155          88 :         auto new_conv = proj_convert_conversion_to_other_method(
   10156             :             d->getPROJContext(), conv, new_code, nullptr);
   10157          88 :         proj_destroy(conv);
   10158          88 :         if (new_conv)
   10159             :         {
   10160             :             auto geodCRS =
   10161          74 :                 proj_crs_get_geodetic_crs(d->getPROJContext(), d->m_pj_crs);
   10162          74 :             auto cs = proj_crs_get_coordinate_system(d->getPROJContext(),
   10163          74 :                                                      d->m_pj_crs);
   10164          74 :             if (geodCRS && cs)
   10165             :             {
   10166          74 :                 auto new_proj_crs = proj_create_projected_crs(
   10167          74 :                     d->getPROJContext(), proj_get_name(d->m_pj_crs), geodCRS,
   10168             :                     new_conv, cs);
   10169          74 :                 proj_destroy(new_conv);
   10170          74 :                 if (new_proj_crs)
   10171             :                 {
   10172          74 :                     poNewSRS = new OGRSpatialReference();
   10173             : 
   10174          74 :                     if (d->m_pj_bound_crs_target && d->m_pj_bound_crs_co)
   10175             :                     {
   10176           9 :                         auto boundCRS = proj_crs_create_bound_crs(
   10177             :                             d->getPROJContext(), new_proj_crs,
   10178           9 :                             d->m_pj_bound_crs_target, d->m_pj_bound_crs_co);
   10179           9 :                         if (boundCRS)
   10180             :                         {
   10181           9 :                             proj_destroy(new_proj_crs);
   10182           9 :                             new_proj_crs = boundCRS;
   10183             :                         }
   10184             :                     }
   10185             : 
   10186          74 :                     poNewSRS->d->setPjCRS(new_proj_crs);
   10187             :                 }
   10188             :             }
   10189          74 :             proj_destroy(geodCRS);
   10190          74 :             proj_destroy(cs);
   10191             :         }
   10192             :     }
   10193          89 :     d->undoDemoteFromBoundCRS();
   10194          89 :     return poNewSRS;
   10195             : }
   10196             : 
   10197             : /************************************************************************/
   10198             : /*                    OSRConvertToOtherProjection()                     */
   10199             : /************************************************************************/
   10200             : 
   10201             : /**
   10202             :  * \brief Convert to another equivalent projection
   10203             :  *
   10204             :  * Currently implemented:
   10205             :  * <ul>
   10206             :  * <li>SRS_PT_MERCATOR_1SP to SRS_PT_MERCATOR_2SP</li>
   10207             :  * <li>SRS_PT_MERCATOR_2SP to SRS_PT_MERCATOR_1SP</li>
   10208             :  * <li>SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP to
   10209             :  * SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP</li>
   10210             :  * <li>SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP to
   10211             :  * SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP</li>
   10212             :  * </ul>
   10213             :  *
   10214             :  * @param hSRS source SRS
   10215             :  * @param pszTargetProjection target projection.
   10216             :  * @param papszOptions lists of options. None supported currently.
   10217             :  * @return a new SRS, or NULL in case of error.
   10218             :  *
   10219             :  */
   10220             : OGRSpatialReferenceH
   10221          28 : OSRConvertToOtherProjection(OGRSpatialReferenceH hSRS,
   10222             :                             const char *pszTargetProjection,
   10223             :                             const char *const *papszOptions)
   10224             : {
   10225          28 :     VALIDATE_POINTER1(hSRS, "OSRConvertToOtherProjection", nullptr);
   10226          28 :     return ToHandle(ToPointer(hSRS)->convertToOtherProjection(
   10227          28 :         pszTargetProjection, papszOptions));
   10228             : }
   10229             : 
   10230             : /************************************************************************/
   10231             : /*                           OSRFindMatches()                           */
   10232             : /************************************************************************/
   10233             : 
   10234             : /**
   10235             :  * \brief Try to identify a match between the passed SRS and a related SRS
   10236             :  * in a catalog.
   10237             :  *
   10238             :  * Matching may be partial, or may fail.
   10239             :  * Returned entries will be sorted by decreasing match confidence (first
   10240             :  * entry has the highest match confidence).
   10241             :  *
   10242             :  * The exact way matching is done may change in future versions. Starting with
   10243             :  * GDAL 3.0, it relies on PROJ' proj_identify() function.
   10244             :  *
   10245             :  * This function is the same as OGRSpatialReference::FindMatches().
   10246             :  *
   10247             :  * @param hSRS SRS to match
   10248             :  * @param papszOptions NULL terminated list of options or NULL
   10249             :  * @param pnEntries Output parameter. Number of values in the returned array.
   10250             :  * @param ppanMatchConfidence Output parameter (or NULL). *ppanMatchConfidence
   10251             :  * will be allocated to an array of *pnEntries whose values between 0 and 100
   10252             :  * indicate the confidence in the match. 100 is the highest confidence level.
   10253             :  * The array must be freed with CPLFree().
   10254             :  *
   10255             :  * @return an array of SRS that match the passed SRS, or NULL. Must be freed
   10256             :  * with OSRFreeSRSArray()
   10257             :  *
   10258             :  */
   10259          10 : OGRSpatialReferenceH *OSRFindMatches(OGRSpatialReferenceH hSRS,
   10260             :                                      char **papszOptions, int *pnEntries,
   10261             :                                      int **ppanMatchConfidence)
   10262             : {
   10263          10 :     if (pnEntries)
   10264          10 :         *pnEntries = 0;
   10265          10 :     if (ppanMatchConfidence)
   10266          10 :         *ppanMatchConfidence = nullptr;
   10267          10 :     VALIDATE_POINTER1(hSRS, "OSRFindMatches", nullptr);
   10268             : 
   10269          10 :     OGRSpatialReference *poSRS = ToPointer(hSRS);
   10270          10 :     return poSRS->FindMatches(papszOptions, pnEntries, ppanMatchConfidence);
   10271             : }
   10272             : 
   10273             : /************************************************************************/
   10274             : /*                           OSRFreeSRSArray()                          */
   10275             : /************************************************************************/
   10276             : 
   10277             : /**
   10278             :  * \brief Free return of OSRIdentifyMatches()
   10279             :  *
   10280             :  * @param pahSRS array of SRS (must be NULL terminated)
   10281             :  */
   10282         197 : void OSRFreeSRSArray(OGRSpatialReferenceH *pahSRS)
   10283             : {
   10284         197 :     if (pahSRS != nullptr)
   10285             :     {
   10286        1744 :         for (int i = 0; pahSRS[i] != nullptr; ++i)
   10287             :         {
   10288        1565 :             OSRRelease(pahSRS[i]);
   10289             :         }
   10290         179 :         CPLFree(pahSRS);
   10291             :     }
   10292         197 : }
   10293             : 
   10294             : /************************************************************************/
   10295             : /*                         FindBestMatch()                              */
   10296             : /************************************************************************/
   10297             : 
   10298             : /**
   10299             :  * \brief Try to identify the best match between the passed SRS and a related
   10300             :  * SRS in a catalog.
   10301             :  *
   10302             :  * This is a wrapper over OGRSpatialReference::FindMatches() that takes care
   10303             :  * of filtering its output.
   10304             :  * Only matches whose confidence is greater or equal to nMinimumMatchConfidence
   10305             :  * will be considered. If there is a single match, it is returned.
   10306             :  * If there are several matches, only return the one under the
   10307             :  * pszPreferredAuthority, if there is a single one under that authority.
   10308             :  *
   10309             :  * @param nMinimumMatchConfidence Minimum match confidence (value between 0 and
   10310             :  * 100). If set to 0, 90 is used.
   10311             :  * @param pszPreferredAuthority Preferred CRS authority. If set to nullptr,
   10312             :  * "EPSG" is used.
   10313             :  * @param papszOptions NULL terminated list of options or NULL. No option is
   10314             :  * defined at time of writing.
   10315             :  *
   10316             :  * @return a new OGRSpatialReference* object to free with Release(), or nullptr
   10317             :  *
   10318             :  * @since GDAL 3.6
   10319             :  * @see OGRSpatialReference::FindMatches()
   10320             :  */
   10321             : OGRSpatialReference *
   10322        1438 : OGRSpatialReference::FindBestMatch(int nMinimumMatchConfidence,
   10323             :                                    const char *pszPreferredAuthority,
   10324             :                                    CSLConstList papszOptions) const
   10325             : {
   10326        2876 :     TAKE_OPTIONAL_LOCK();
   10327             : 
   10328        1438 :     CPL_IGNORE_RET_VAL(papszOptions);  // ignored for now.
   10329             : 
   10330        1438 :     if (nMinimumMatchConfidence == 0)
   10331           0 :         nMinimumMatchConfidence = 90;
   10332        1438 :     if (pszPreferredAuthority == nullptr)
   10333         200 :         pszPreferredAuthority = "EPSG";
   10334             : 
   10335             :     // Try to identify the CRS with the database
   10336        1438 :     int nEntries = 0;
   10337        1438 :     int *panConfidence = nullptr;
   10338             :     OGRSpatialReferenceH *pahSRS =
   10339        1438 :         FindMatches(nullptr, &nEntries, &panConfidence);
   10340        1438 :     if (nEntries == 1 && panConfidence[0] >= nMinimumMatchConfidence)
   10341             :     {
   10342        2548 :         std::vector<double> adfTOWGS84(7);
   10343        1274 :         if (GetTOWGS84(&adfTOWGS84[0], 7) != OGRERR_NONE)
   10344             :         {
   10345        1273 :             adfTOWGS84.clear();
   10346             :         }
   10347             : 
   10348        1274 :         auto poSRS = OGRSpatialReference::FromHandle(pahSRS[0]);
   10349             : 
   10350             :         auto poBaseGeogCRS =
   10351        1274 :             std::unique_ptr<OGRSpatialReference>(poSRS->CloneGeogCS());
   10352        1274 :         if (poBaseGeogCRS)
   10353             :         {
   10354             :             // If the base geographic SRS of the SRS is EPSG:4326
   10355             :             // with TOWGS84[0,0,0,0,0,0], then just use the official
   10356             :             // SRS code
   10357             :             // Same with EPSG:4258 (ETRS89), since it's the only known
   10358             :             // TOWGS84[] style transformation to WGS 84, and given the
   10359             :             // "fuzzy" nature of both ETRS89 and WGS 84, there's little
   10360             :             // chance that a non-NULL TOWGS84[] will emerge.
   10361        1274 :             const char *pszAuthorityName = nullptr;
   10362        1274 :             const char *pszAuthorityCode = nullptr;
   10363        1274 :             const char *pszBaseAuthorityName = nullptr;
   10364        1274 :             const char *pszBaseAuthorityCode = nullptr;
   10365        1274 :             const char *pszBaseName = poBaseGeogCRS->GetName();
   10366        2548 :             if (adfTOWGS84 == std::vector<double>(7) &&
   10367           1 :                 (pszAuthorityName = poSRS->GetAuthorityName(nullptr)) !=
   10368           1 :                     nullptr &&
   10369           1 :                 EQUAL(pszAuthorityName, "EPSG") &&
   10370           1 :                 (pszAuthorityCode = poSRS->GetAuthorityCode(nullptr)) !=
   10371           1 :                     nullptr &&
   10372             :                 (pszBaseAuthorityName =
   10373           1 :                      poBaseGeogCRS->GetAuthorityName(nullptr)) != nullptr &&
   10374           1 :                 EQUAL(pszBaseAuthorityName, "EPSG") &&
   10375             :                 (pszBaseAuthorityCode =
   10376        2550 :                      poBaseGeogCRS->GetAuthorityCode(nullptr)) != nullptr &&
   10377           1 :                 (EQUAL(pszBaseAuthorityCode, "4326") ||
   10378           1 :                  EQUAL(pszBaseAuthorityCode, "4258") ||
   10379             :                  // For ETRS89-XXX [...] new CRS added in EPSG 12.033+
   10380           0 :                  (pszBaseName && STARTS_WITH(pszBaseName, "ETRS89"))))
   10381             :             {
   10382           1 :                 poSRS->importFromEPSG(atoi(pszAuthorityCode));
   10383             :             }
   10384             :         }
   10385             : 
   10386        1274 :         CPLFree(pahSRS);
   10387        1274 :         CPLFree(panConfidence);
   10388             : 
   10389        1274 :         return poSRS;
   10390             :     }
   10391             :     else
   10392             :     {
   10393             :         // If there are several matches >= nMinimumMatchConfidence, take the
   10394             :         // only one that is under pszPreferredAuthority
   10395         164 :         int iBestEntry = -1;
   10396        1679 :         for (int i = 0; i < nEntries; i++)
   10397             :         {
   10398        1515 :             if (panConfidence[i] >= nMinimumMatchConfidence)
   10399             :             {
   10400             :                 const char *pszAuthName =
   10401           3 :                     OGRSpatialReference::FromHandle(pahSRS[i])
   10402           3 :                         ->GetAuthorityName(nullptr);
   10403           3 :                 if (pszAuthName != nullptr &&
   10404           3 :                     EQUAL(pszAuthName, pszPreferredAuthority))
   10405             :                 {
   10406           3 :                     if (iBestEntry < 0)
   10407           3 :                         iBestEntry = i;
   10408             :                     else
   10409             :                     {
   10410           0 :                         iBestEntry = -1;
   10411           0 :                         break;
   10412             :                     }
   10413             :                 }
   10414             :             }
   10415             :         }
   10416         164 :         if (iBestEntry >= 0)
   10417             :         {
   10418           3 :             auto poRet = OGRSpatialReference::FromHandle(pahSRS[0])->Clone();
   10419           3 :             OSRFreeSRSArray(pahSRS);
   10420           3 :             CPLFree(panConfidence);
   10421           3 :             return poRet;
   10422             :         }
   10423             :     }
   10424         161 :     OSRFreeSRSArray(pahSRS);
   10425         161 :     CPLFree(panConfidence);
   10426         161 :     return nullptr;
   10427             : }
   10428             : 
   10429             : /************************************************************************/
   10430             : /*                             SetTOWGS84()                             */
   10431             : /************************************************************************/
   10432             : 
   10433             : /**
   10434             :  * \brief Set the Bursa-Wolf conversion to WGS84.
   10435             :  *
   10436             :  * This will create the TOWGS84 node as a child of the DATUM.  It will fail
   10437             :  * if there is no existing DATUM node. It will replace
   10438             :  * an existing TOWGS84 node if there is one.
   10439             :  *
   10440             :  * The parameters have the same meaning as EPSG transformation 9606
   10441             :  * (Position Vector 7-param. transformation).
   10442             :  *
   10443             :  * This method is the same as the C function OSRSetTOWGS84().
   10444             :  *
   10445             :  * @param dfDX X child in meters.
   10446             :  * @param dfDY Y child in meters.
   10447             :  * @param dfDZ Z child in meters.
   10448             :  * @param dfEX X rotation in arc seconds (optional, defaults to zero).
   10449             :  * @param dfEY Y rotation in arc seconds (optional, defaults to zero).
   10450             :  * @param dfEZ Z rotation in arc seconds (optional, defaults to zero).
   10451             :  * @param dfPPM scaling factor (parts per million).
   10452             :  *
   10453             :  * @return OGRERR_NONE on success.
   10454             :  */
   10455             : 
   10456         103 : OGRErr OGRSpatialReference::SetTOWGS84(double dfDX, double dfDY, double dfDZ,
   10457             :                                        double dfEX, double dfEY, double dfEZ,
   10458             :                                        double dfPPM)
   10459             : 
   10460             : {
   10461         206 :     TAKE_OPTIONAL_LOCK();
   10462             : 
   10463         103 :     d->refreshProjObj();
   10464         103 :     if (d->m_pj_crs == nullptr)
   10465             :     {
   10466           0 :         return OGRERR_FAILURE;
   10467             :     }
   10468             : 
   10469             :     // Remove existing BoundCRS
   10470         103 :     if (d->m_pjType == PJ_TYPE_BOUND_CRS)
   10471             :     {
   10472           0 :         auto baseCRS = proj_get_source_crs(d->getPROJContext(), d->m_pj_crs);
   10473           0 :         if (!baseCRS)
   10474           0 :             return OGRERR_FAILURE;
   10475           0 :         d->setPjCRS(baseCRS);
   10476             :     }
   10477             : 
   10478             :     PJ_PARAM_DESCRIPTION params[7];
   10479             : 
   10480         103 :     params[0].name = EPSG_NAME_PARAMETER_X_AXIS_TRANSLATION;
   10481         103 :     params[0].auth_name = "EPSG";
   10482         103 :     params[0].code = XSTRINGIFY(EPSG_CODE_PARAMETER_X_AXIS_TRANSLATION);
   10483         103 :     params[0].value = dfDX;
   10484         103 :     params[0].unit_name = "metre";
   10485         103 :     params[0].unit_conv_factor = 1.0;
   10486         103 :     params[0].unit_type = PJ_UT_LINEAR;
   10487             : 
   10488         103 :     params[1].name = EPSG_NAME_PARAMETER_Y_AXIS_TRANSLATION;
   10489         103 :     params[1].auth_name = "EPSG";
   10490         103 :     params[1].code = XSTRINGIFY(EPSG_CODE_PARAMETER_Y_AXIS_TRANSLATION);
   10491         103 :     params[1].value = dfDY;
   10492         103 :     params[1].unit_name = "metre";
   10493         103 :     params[1].unit_conv_factor = 1.0;
   10494         103 :     params[1].unit_type = PJ_UT_LINEAR;
   10495             : 
   10496         103 :     params[2].name = EPSG_NAME_PARAMETER_Z_AXIS_TRANSLATION;
   10497         103 :     params[2].auth_name = "EPSG";
   10498         103 :     params[2].code = XSTRINGIFY(EPSG_CODE_PARAMETER_Z_AXIS_TRANSLATION);
   10499         103 :     params[2].value = dfDZ;
   10500         103 :     params[2].unit_name = "metre";
   10501         103 :     params[2].unit_conv_factor = 1.0;
   10502         103 :     params[2].unit_type = PJ_UT_LINEAR;
   10503             : 
   10504         103 :     params[3].name = EPSG_NAME_PARAMETER_X_AXIS_ROTATION;
   10505         103 :     params[3].auth_name = "EPSG";
   10506         103 :     params[3].code = XSTRINGIFY(EPSG_CODE_PARAMETER_X_AXIS_ROTATION);
   10507         103 :     params[3].value = dfEX;
   10508         103 :     params[3].unit_name = "arc-second";
   10509         103 :     params[3].unit_conv_factor = 1. / 3600 * M_PI / 180;
   10510         103 :     params[3].unit_type = PJ_UT_ANGULAR;
   10511             : 
   10512         103 :     params[4].name = EPSG_NAME_PARAMETER_Y_AXIS_ROTATION;
   10513         103 :     params[4].auth_name = "EPSG";
   10514         103 :     params[4].code = XSTRINGIFY(EPSG_CODE_PARAMETER_Y_AXIS_ROTATION);
   10515         103 :     params[4].value = dfEY;
   10516         103 :     params[4].unit_name = "arc-second";
   10517         103 :     params[4].unit_conv_factor = 1. / 3600 * M_PI / 180;
   10518         103 :     params[4].unit_type = PJ_UT_ANGULAR;
   10519             : 
   10520         103 :     params[5].name = EPSG_NAME_PARAMETER_Z_AXIS_ROTATION;
   10521         103 :     params[5].auth_name = "EPSG";
   10522         103 :     params[5].code = XSTRINGIFY(EPSG_CODE_PARAMETER_Z_AXIS_ROTATION);
   10523         103 :     params[5].value = dfEZ;
   10524         103 :     params[5].unit_name = "arc-second";
   10525         103 :     params[5].unit_conv_factor = 1. / 3600 * M_PI / 180;
   10526         103 :     params[5].unit_type = PJ_UT_ANGULAR;
   10527             : 
   10528         103 :     params[6].name = EPSG_NAME_PARAMETER_SCALE_DIFFERENCE;
   10529         103 :     params[6].auth_name = "EPSG";
   10530         103 :     params[6].code = XSTRINGIFY(EPSG_CODE_PARAMETER_SCALE_DIFFERENCE);
   10531         103 :     params[6].value = dfPPM;
   10532         103 :     params[6].unit_name = "parts per million";
   10533         103 :     params[6].unit_conv_factor = 1e-6;
   10534         103 :     params[6].unit_type = PJ_UT_SCALE;
   10535             : 
   10536             :     auto sourceCRS =
   10537         103 :         proj_crs_get_geodetic_crs(d->getPROJContext(), d->m_pj_crs);
   10538         103 :     if (!sourceCRS)
   10539             :     {
   10540           0 :         return OGRERR_FAILURE;
   10541             :     }
   10542             : 
   10543         103 :     const auto sourceType = proj_get_type(sourceCRS);
   10544             : 
   10545         103 :     auto targetCRS = proj_create_from_database(
   10546             :         d->getPROJContext(), "EPSG",
   10547             :         sourceType == PJ_TYPE_GEOGRAPHIC_2D_CRS   ? "4326"
   10548             :         : sourceType == PJ_TYPE_GEOGRAPHIC_3D_CRS ? "4979"
   10549             :                                                   : "4978",
   10550             :         PJ_CATEGORY_CRS, false, nullptr);
   10551         103 :     if (!targetCRS)
   10552             :     {
   10553           0 :         proj_destroy(sourceCRS);
   10554           0 :         return OGRERR_FAILURE;
   10555             :     }
   10556             : 
   10557         206 :     CPLString osMethodCode;
   10558             :     osMethodCode.Printf("%d",
   10559             :                         sourceType == PJ_TYPE_GEOGRAPHIC_2D_CRS
   10560             :                             ? EPSG_CODE_METHOD_POSITION_VECTOR_GEOGRAPHIC_2D
   10561             :                         : sourceType == PJ_TYPE_GEOGRAPHIC_3D_CRS
   10562           0 :                             ? EPSG_CODE_METHOD_POSITION_VECTOR_GEOGRAPHIC_3D
   10563         103 :                             : EPSG_CODE_METHOD_POSITION_VECTOR_GEOCENTRIC);
   10564             : 
   10565         103 :     auto transf = proj_create_transformation(
   10566             :         d->getPROJContext(), "Transformation to WGS84", nullptr, nullptr,
   10567             :         sourceCRS, targetCRS, nullptr,
   10568             :         sourceType == PJ_TYPE_GEOGRAPHIC_2D_CRS
   10569             :             ? EPSG_NAME_METHOD_POSITION_VECTOR_GEOGRAPHIC_2D
   10570             :         : sourceType == PJ_TYPE_GEOGRAPHIC_3D_CRS
   10571           0 :             ? EPSG_NAME_METHOD_POSITION_VECTOR_GEOGRAPHIC_3D
   10572             :             : EPSG_NAME_METHOD_POSITION_VECTOR_GEOCENTRIC,
   10573             :         "EPSG", osMethodCode.c_str(), 7, params, -1);
   10574         103 :     proj_destroy(sourceCRS);
   10575         103 :     if (!transf)
   10576             :     {
   10577           0 :         proj_destroy(targetCRS);
   10578           0 :         return OGRERR_FAILURE;
   10579             :     }
   10580             : 
   10581         103 :     auto newBoundCRS = proj_crs_create_bound_crs(
   10582         103 :         d->getPROJContext(), d->m_pj_crs, targetCRS, transf);
   10583         103 :     proj_destroy(transf);
   10584         103 :     proj_destroy(targetCRS);
   10585         103 :     if (!newBoundCRS)
   10586             :     {
   10587           0 :         return OGRERR_FAILURE;
   10588             :     }
   10589             : 
   10590         103 :     d->setPjCRS(newBoundCRS);
   10591         103 :     return OGRERR_NONE;
   10592             : }
   10593             : 
   10594             : /************************************************************************/
   10595             : /*                           OSRSetTOWGS84()                            */
   10596             : /************************************************************************/
   10597             : 
   10598             : /**
   10599             :  * \brief Set the Bursa-Wolf conversion to WGS84.
   10600             :  *
   10601             :  * This function is the same as OGRSpatialReference::SetTOWGS84().
   10602             :  */
   10603           4 : OGRErr OSRSetTOWGS84(OGRSpatialReferenceH hSRS, double dfDX, double dfDY,
   10604             :                      double dfDZ, double dfEX, double dfEY, double dfEZ,
   10605             :                      double dfPPM)
   10606             : 
   10607             : {
   10608           4 :     VALIDATE_POINTER1(hSRS, "OSRSetTOWGS84", OGRERR_FAILURE);
   10609             : 
   10610           4 :     return ToPointer(hSRS)->SetTOWGS84(dfDX, dfDY, dfDZ, dfEX, dfEY, dfEZ,
   10611           4 :                                        dfPPM);
   10612             : }
   10613             : 
   10614             : /************************************************************************/
   10615             : /*                             GetTOWGS84()                             */
   10616             : /************************************************************************/
   10617             : 
   10618             : /**
   10619             :  * \brief Fetch TOWGS84 parameters, if available.
   10620             :  *
   10621             :  * The parameters have the same meaning as EPSG transformation 9606
   10622             :  * (Position Vector 7-param. transformation).
   10623             :  *
   10624             :  * @param padfCoeff array into which up to 7 coefficients are placed.
   10625             :  * @param nCoeffCount size of padfCoeff - defaults to 7.
   10626             :  *
   10627             :  * @return OGRERR_NONE on success, or OGRERR_FAILURE if there is no
   10628             :  * TOWGS84 node available.
   10629             :  */
   10630             : 
   10631        4802 : OGRErr OGRSpatialReference::GetTOWGS84(double *padfCoeff, int nCoeffCount) const
   10632             : 
   10633             : {
   10634        9604 :     TAKE_OPTIONAL_LOCK();
   10635             : 
   10636        4802 :     d->refreshProjObj();
   10637        4802 :     if (d->m_pjType != PJ_TYPE_BOUND_CRS)
   10638        4754 :         return OGRERR_FAILURE;
   10639             : 
   10640          48 :     memset(padfCoeff, 0, sizeof(double) * nCoeffCount);
   10641             : 
   10642          48 :     auto transf = proj_crs_get_coordoperation(d->getPROJContext(), d->m_pj_crs);
   10643          48 :     int success = proj_coordoperation_get_towgs84_values(
   10644             :         d->getPROJContext(), transf, padfCoeff, nCoeffCount, false);
   10645          48 :     proj_destroy(transf);
   10646             : 
   10647          48 :     return success ? OGRERR_NONE : OGRERR_FAILURE;
   10648             : }
   10649             : 
   10650             : /************************************************************************/
   10651             : /*                           OSRGetTOWGS84()                            */
   10652             : /************************************************************************/
   10653             : 
   10654             : /**
   10655             :  * \brief Fetch TOWGS84 parameters, if available.
   10656             :  *
   10657             :  * This function is the same as OGRSpatialReference::GetTOWGS84().
   10658             :  */
   10659          10 : OGRErr OSRGetTOWGS84(OGRSpatialReferenceH hSRS, double *padfCoeff,
   10660             :                      int nCoeffCount)
   10661             : 
   10662             : {
   10663          10 :     VALIDATE_POINTER1(hSRS, "OSRGetTOWGS84", OGRERR_FAILURE);
   10664             : 
   10665          10 :     return ToPointer(hSRS)->GetTOWGS84(padfCoeff, nCoeffCount);
   10666             : }
   10667             : 
   10668             : /************************************************************************/
   10669             : /*                         IsAngularParameter()                         */
   10670             : /************************************************************************/
   10671             : 
   10672             : /** Is the passed projection parameter an angular one?
   10673             :  *
   10674             :  * @return TRUE or FALSE
   10675             :  */
   10676             : 
   10677             : /* static */
   10678          10 : int OGRSpatialReference::IsAngularParameter(const char *pszParameterName)
   10679             : 
   10680             : {
   10681          10 :     if (STARTS_WITH_CI(pszParameterName, "long") ||
   10682          10 :         STARTS_WITH_CI(pszParameterName, "lati") ||
   10683           7 :         EQUAL(pszParameterName, SRS_PP_CENTRAL_MERIDIAN) ||
   10684           4 :         STARTS_WITH_CI(pszParameterName, "standard_parallel") ||
   10685           2 :         EQUAL(pszParameterName, SRS_PP_AZIMUTH) ||
   10686           2 :         EQUAL(pszParameterName, SRS_PP_RECTIFIED_GRID_ANGLE))
   10687           8 :         return TRUE;
   10688             : 
   10689           2 :     return FALSE;
   10690             : }
   10691             : 
   10692             : /************************************************************************/
   10693             : /*                        IsLongitudeParameter()                        */
   10694             : /************************************************************************/
   10695             : 
   10696             : /** Is the passed projection parameter an angular longitude
   10697             :  * (relative to a prime meridian)?
   10698             :  *
   10699             :  * @return TRUE or FALSE
   10700             :  */
   10701             : 
   10702             : /* static */
   10703           0 : int OGRSpatialReference::IsLongitudeParameter(const char *pszParameterName)
   10704             : 
   10705             : {
   10706           0 :     if (STARTS_WITH_CI(pszParameterName, "long") ||
   10707           0 :         EQUAL(pszParameterName, SRS_PP_CENTRAL_MERIDIAN))
   10708           0 :         return TRUE;
   10709             : 
   10710           0 :     return FALSE;
   10711             : }
   10712             : 
   10713             : /************************************************************************/
   10714             : /*                         IsLinearParameter()                          */
   10715             : /************************************************************************/
   10716             : 
   10717             : /** Is the passed projection parameter an linear one measured in meters or
   10718             :  * some similar linear measure.
   10719             :  *
   10720             :  * @return TRUE or FALSE
   10721             :  */
   10722             : 
   10723             : /* static */
   10724          43 : int OGRSpatialReference::IsLinearParameter(const char *pszParameterName)
   10725             : 
   10726             : {
   10727          43 :     if (STARTS_WITH_CI(pszParameterName, "false_") ||
   10728          34 :         EQUAL(pszParameterName, SRS_PP_SATELLITE_HEIGHT))
   10729           9 :         return TRUE;
   10730             : 
   10731          34 :     return FALSE;
   10732             : }
   10733             : 
   10734             : /************************************************************************/
   10735             : /*                            GetNormInfo()                             */
   10736             : /************************************************************************/
   10737             : 
   10738             : /**
   10739             :  * \brief Set the internal information for normalizing linear, and angular
   10740             :  * values.
   10741             :  */
   10742        3987 : void OGRSpatialReference::GetNormInfo() const
   10743             : 
   10744             : {
   10745        3987 :     TAKE_OPTIONAL_LOCK();
   10746             : 
   10747        3987 :     if (d->bNormInfoSet)
   10748        2827 :         return;
   10749             : 
   10750             :     /* -------------------------------------------------------------------- */
   10751             :     /*      Initialize values.                                              */
   10752             :     /* -------------------------------------------------------------------- */
   10753        1160 :     d->bNormInfoSet = TRUE;
   10754             : 
   10755        1160 :     d->dfFromGreenwich = GetPrimeMeridian(nullptr);
   10756        1160 :     d->dfToMeter = GetLinearUnits(nullptr);
   10757        1160 :     d->dfToDegrees = GetAngularUnits(nullptr) / CPLAtof(SRS_UA_DEGREE_CONV);
   10758        1160 :     if (fabs(d->dfToDegrees - 1.0) < 0.000000001)
   10759        1157 :         d->dfToDegrees = 1.0;
   10760             : }
   10761             : 
   10762             : /************************************************************************/
   10763             : /*                            GetExtension()                            */
   10764             : /************************************************************************/
   10765             : 
   10766             : /**
   10767             :  * \brief Fetch extension value.
   10768             :  *
   10769             :  * Fetch the value of the named EXTENSION item for the identified
   10770             :  * target node.
   10771             :  *
   10772             :  * @param pszTargetKey the name or path to the parent node of the EXTENSION.
   10773             :  * @param pszName the name of the extension being fetched.
   10774             :  * @param pszDefault the value to return if the extension is not found.
   10775             :  *
   10776             :  * @return node value if successful or pszDefault on failure.
   10777             :  */
   10778             : 
   10779       11611 : const char *OGRSpatialReference::GetExtension(const char *pszTargetKey,
   10780             :                                               const char *pszName,
   10781             :                                               const char *pszDefault) const
   10782             : 
   10783             : {
   10784       23222 :     TAKE_OPTIONAL_LOCK();
   10785             : 
   10786             :     /* -------------------------------------------------------------------- */
   10787             :     /*      Find the target node.                                           */
   10788             :     /* -------------------------------------------------------------------- */
   10789             :     const OGR_SRSNode *poNode =
   10790       11611 :         pszTargetKey == nullptr ? GetRoot() : GetAttrNode(pszTargetKey);
   10791             : 
   10792       11611 :     if (poNode == nullptr)
   10793        2355 :         return nullptr;
   10794             : 
   10795             :     /* -------------------------------------------------------------------- */
   10796             :     /*      Fetch matching EXTENSION if there is one.                       */
   10797             :     /* -------------------------------------------------------------------- */
   10798       68172 :     for (int i = poNode->GetChildCount() - 1; i >= 0; i--)
   10799             :     {
   10800       58940 :         const OGR_SRSNode *poChild = poNode->GetChild(i);
   10801             : 
   10802       58966 :         if (EQUAL(poChild->GetValue(), "EXTENSION") &&
   10803          26 :             poChild->GetChildCount() >= 2)
   10804             :         {
   10805          26 :             if (EQUAL(poChild->GetChild(0)->GetValue(), pszName))
   10806          24 :                 return poChild->GetChild(1)->GetValue();
   10807             :         }
   10808             :     }
   10809             : 
   10810        9232 :     return pszDefault;
   10811             : }
   10812             : 
   10813             : /************************************************************************/
   10814             : /*                            SetExtension()                            */
   10815             : /************************************************************************/
   10816             : /**
   10817             :  * \brief Set extension value.
   10818             :  *
   10819             :  * Set the value of the named EXTENSION item for the identified
   10820             :  * target node.
   10821             :  *
   10822             :  * @param pszTargetKey the name or path to the parent node of the EXTENSION.
   10823             :  * @param pszName the name of the extension being fetched.
   10824             :  * @param pszValue the value to set
   10825             :  *
   10826             :  * @return OGRERR_NONE on success
   10827             :  */
   10828             : 
   10829          20 : OGRErr OGRSpatialReference::SetExtension(const char *pszTargetKey,
   10830             :                                          const char *pszName,
   10831             :                                          const char *pszValue)
   10832             : 
   10833             : {
   10834          40 :     TAKE_OPTIONAL_LOCK();
   10835             : 
   10836             :     /* -------------------------------------------------------------------- */
   10837             :     /*      Find the target node.                                           */
   10838             :     /* -------------------------------------------------------------------- */
   10839          20 :     OGR_SRSNode *poNode = nullptr;
   10840             : 
   10841          20 :     if (pszTargetKey == nullptr)
   10842           0 :         poNode = GetRoot();
   10843             :     else
   10844          20 :         poNode = GetAttrNode(pszTargetKey);
   10845             : 
   10846          20 :     if (poNode == nullptr)
   10847           0 :         return OGRERR_FAILURE;
   10848             : 
   10849             :     /* -------------------------------------------------------------------- */
   10850             :     /*      Fetch matching EXTENSION if there is one.                       */
   10851             :     /* -------------------------------------------------------------------- */
   10852         151 :     for (int i = poNode->GetChildCount() - 1; i >= 0; i--)
   10853             :     {
   10854         137 :         OGR_SRSNode *poChild = poNode->GetChild(i);
   10855             : 
   10856         143 :         if (EQUAL(poChild->GetValue(), "EXTENSION") &&
   10857           6 :             poChild->GetChildCount() >= 2)
   10858             :         {
   10859           6 :             if (EQUAL(poChild->GetChild(0)->GetValue(), pszName))
   10860             :             {
   10861           6 :                 poChild->GetChild(1)->SetValue(pszValue);
   10862           6 :                 return OGRERR_NONE;
   10863             :             }
   10864             :         }
   10865             :     }
   10866             : 
   10867             :     /* -------------------------------------------------------------------- */
   10868             :     /*      Create a new EXTENSION node.                                    */
   10869             :     /* -------------------------------------------------------------------- */
   10870          14 :     OGR_SRSNode *poAuthNode = new OGR_SRSNode("EXTENSION");
   10871          14 :     poAuthNode->AddChild(new OGR_SRSNode(pszName));
   10872          14 :     poAuthNode->AddChild(new OGR_SRSNode(pszValue));
   10873             : 
   10874          14 :     poNode->AddChild(poAuthNode);
   10875             : 
   10876          14 :     return OGRERR_NONE;
   10877             : }
   10878             : 
   10879             : /************************************************************************/
   10880             : /*                             OSRCleanup()                             */
   10881             : /************************************************************************/
   10882             : 
   10883             : static void CleanupSRSWGS84Mutex();
   10884             : 
   10885             : /**
   10886             :  * \brief Cleanup cached SRS related memory.
   10887             :  *
   10888             :  * This function will attempt to cleanup any cache spatial reference
   10889             :  * related information, such as cached tables of coordinate systems.
   10890             :  *
   10891             :  * This function should not be called concurrently with any other GDAL/OGR
   10892             :  * function. It is meant at being called once before process termination
   10893             :  * (typically from the main thread). CPLCleanupTLS() might be used to clean
   10894             :  * thread-specific resources before thread termination.
   10895             :  */
   10896        1131 : void OSRCleanup(void)
   10897             : 
   10898             : {
   10899        1131 :     OGRCTDumpStatistics();
   10900        1131 :     CSVDeaccess(nullptr);
   10901        1131 :     CleanupSRSWGS84Mutex();
   10902        1131 :     OSRCTCleanCache();
   10903        1131 :     OSRCleanupTLSContext();
   10904        1131 : }
   10905             : 
   10906             : /************************************************************************/
   10907             : /*                              GetAxesCount()                          */
   10908             : /************************************************************************/
   10909             : 
   10910             : /**
   10911             :  * \brief Return the number of axis of the coordinate system of the CRS.
   10912             :  *
   10913             :  * @since GDAL 3.0
   10914             :  */
   10915       37941 : int OGRSpatialReference::GetAxesCount() const
   10916             : {
   10917       75882 :     TAKE_OPTIONAL_LOCK();
   10918             : 
   10919       37941 :     int axisCount = 0;
   10920       37941 :     d->refreshProjObj();
   10921       37941 :     if (d->m_pj_crs == nullptr)
   10922             :     {
   10923           0 :         return 0;
   10924             :     }
   10925       37941 :     d->demoteFromBoundCRS();
   10926       37941 :     auto ctxt = d->getPROJContext();
   10927       37941 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
   10928             :     {
   10929          38 :         for (int i = 0;; i++)
   10930             :         {
   10931         114 :             auto subCRS = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, i);
   10932         114 :             if (!subCRS)
   10933          38 :                 break;
   10934          76 :             if (proj_get_type(subCRS) == PJ_TYPE_BOUND_CRS)
   10935             :             {
   10936          18 :                 auto baseCRS = proj_get_source_crs(ctxt, subCRS);
   10937          18 :                 if (baseCRS)
   10938             :                 {
   10939          18 :                     proj_destroy(subCRS);
   10940          18 :                     subCRS = baseCRS;
   10941             :                 }
   10942             :             }
   10943          76 :             auto cs = proj_crs_get_coordinate_system(ctxt, subCRS);
   10944          76 :             if (cs)
   10945             :             {
   10946          76 :                 axisCount += proj_cs_get_axis_count(ctxt, cs);
   10947          76 :                 proj_destroy(cs);
   10948             :             }
   10949          76 :             proj_destroy(subCRS);
   10950          76 :         }
   10951             :     }
   10952             :     else
   10953             :     {
   10954       37903 :         auto cs = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
   10955       37903 :         if (cs)
   10956             :         {
   10957       37903 :             axisCount = proj_cs_get_axis_count(ctxt, cs);
   10958       37903 :             proj_destroy(cs);
   10959             :         }
   10960             :     }
   10961       37941 :     d->undoDemoteFromBoundCRS();
   10962       37941 :     return axisCount;
   10963             : }
   10964             : 
   10965             : /************************************************************************/
   10966             : /*                           OSRGetAxesCount()                          */
   10967             : /************************************************************************/
   10968             : 
   10969             : /**
   10970             :  * \brief Return the number of axis of the coordinate system of the CRS.
   10971             :  *
   10972             :  * This method is the equivalent of the C++ method
   10973             :  * OGRSpatialReference::GetAxesCount()
   10974             :  *
   10975             :  * @since GDAL 3.1
   10976             :  */
   10977           6 : int OSRGetAxesCount(OGRSpatialReferenceH hSRS)
   10978             : 
   10979             : {
   10980           6 :     VALIDATE_POINTER1(hSRS, "OSRGetAxesCount", 0);
   10981             : 
   10982           6 :     return ToPointer(hSRS)->GetAxesCount();
   10983             : }
   10984             : 
   10985             : /************************************************************************/
   10986             : /*                              GetAxis()                               */
   10987             : /************************************************************************/
   10988             : 
   10989             : /**
   10990             :  * \brief Fetch the orientation of one axis.
   10991             :  *
   10992             :  * Fetches the request axis (iAxis - zero based) from the
   10993             :  * indicated portion of the coordinate system (pszTargetKey) which
   10994             :  * should be either "GEOGCS" or "PROJCS".
   10995             :  *
   10996             :  * No CPLError is issued on routine failures (such as not finding the AXIS).
   10997             :  *
   10998             :  * This method is equivalent to the C function OSRGetAxis().
   10999             :  *
   11000             :  * @param pszTargetKey the coordinate system part to query ("PROJCS" or
   11001             :  * "GEOGCS").
   11002             :  * @param iAxis the axis to query (0 for first, 1 for second, 2 for third).
   11003             :  * @param peOrientation location into which to place the fetch orientation, may
   11004             :  * be NULL.
   11005             :  * @param pdfConvUnit (GDAL >= 3.4) Location into which to place axis conversion
   11006             :  * factor. May be NULL. Only set if pszTargetKey == NULL
   11007             :  *
   11008             :  * @return the name of the axis or NULL on failure.
   11009             :  */
   11010             : 
   11011        7522 : const char *OGRSpatialReference::GetAxis(const char *pszTargetKey, int iAxis,
   11012             :                                          OGRAxisOrientation *peOrientation,
   11013             :                                          double *pdfConvUnit) const
   11014             : 
   11015             : {
   11016       15044 :     TAKE_OPTIONAL_LOCK();
   11017             : 
   11018        7522 :     if (peOrientation != nullptr)
   11019        7413 :         *peOrientation = OAO_Other;
   11020        7522 :     if (pdfConvUnit != nullptr)
   11021         101 :         *pdfConvUnit = 0;
   11022             : 
   11023        7522 :     d->refreshProjObj();
   11024        7522 :     if (d->m_pj_crs == nullptr)
   11025             :     {
   11026           3 :         return nullptr;
   11027             :     }
   11028             : 
   11029        7519 :     pszTargetKey = d->nullifyTargetKeyIfPossible(pszTargetKey);
   11030        7519 :     if (pszTargetKey == nullptr && iAxis <= 2)
   11031             :     {
   11032        7519 :         auto ctxt = d->getPROJContext();
   11033             : 
   11034        7519 :         int iAxisModified = iAxis;
   11035             : 
   11036        7519 :         d->demoteFromBoundCRS();
   11037             : 
   11038        7519 :         PJ *cs = nullptr;
   11039        7519 :         if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
   11040             :         {
   11041         134 :             auto horizCRS = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 0);
   11042         134 :             if (horizCRS)
   11043             :             {
   11044         134 :                 if (proj_get_type(horizCRS) == PJ_TYPE_BOUND_CRS)
   11045             :                 {
   11046           6 :                     auto baseCRS = proj_get_source_crs(ctxt, horizCRS);
   11047           6 :                     if (baseCRS)
   11048             :                     {
   11049           6 :                         proj_destroy(horizCRS);
   11050           6 :                         horizCRS = baseCRS;
   11051             :                     }
   11052             :                 }
   11053         134 :                 cs = proj_crs_get_coordinate_system(ctxt, horizCRS);
   11054         134 :                 proj_destroy(horizCRS);
   11055         134 :                 if (cs)
   11056             :                 {
   11057         134 :                     if (iAxisModified >= proj_cs_get_axis_count(ctxt, cs))
   11058             :                     {
   11059          44 :                         iAxisModified -= proj_cs_get_axis_count(ctxt, cs);
   11060          44 :                         proj_destroy(cs);
   11061          44 :                         cs = nullptr;
   11062             :                     }
   11063             :                 }
   11064             :             }
   11065             : 
   11066         134 :             if (cs == nullptr)
   11067             :             {
   11068          44 :                 auto vertCRS = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 1);
   11069          44 :                 if (vertCRS)
   11070             :                 {
   11071          44 :                     if (proj_get_type(vertCRS) == PJ_TYPE_BOUND_CRS)
   11072             :                     {
   11073          30 :                         auto baseCRS = proj_get_source_crs(ctxt, vertCRS);
   11074          30 :                         if (baseCRS)
   11075             :                         {
   11076          30 :                             proj_destroy(vertCRS);
   11077          30 :                             vertCRS = baseCRS;
   11078             :                         }
   11079             :                     }
   11080             : 
   11081          44 :                     cs = proj_crs_get_coordinate_system(ctxt, vertCRS);
   11082          44 :                     proj_destroy(vertCRS);
   11083             :                 }
   11084             :             }
   11085             :         }
   11086             :         else
   11087             :         {
   11088        7385 :             cs = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
   11089             :         }
   11090             : 
   11091        7519 :         if (cs)
   11092             :         {
   11093        7519 :             const char *pszName = nullptr;
   11094        7519 :             const char *pszOrientation = nullptr;
   11095        7519 :             double dfConvFactor = 0.0;
   11096        7519 :             proj_cs_get_axis_info(ctxt, cs, iAxisModified, &pszName, nullptr,
   11097             :                                   &pszOrientation, &dfConvFactor, nullptr,
   11098             :                                   nullptr, nullptr);
   11099             : 
   11100        7519 :             if (pdfConvUnit != nullptr)
   11101             :             {
   11102         101 :                 *pdfConvUnit = dfConvFactor;
   11103             :             }
   11104             : 
   11105        7519 :             if (pszName && pszOrientation)
   11106             :             {
   11107        7519 :                 d->m_osAxisName[iAxis] = pszName;
   11108        7519 :                 if (peOrientation)
   11109             :                 {
   11110        7410 :                     if (EQUAL(pszOrientation, "NORTH"))
   11111        4677 :                         *peOrientation = OAO_North;
   11112        2733 :                     else if (EQUAL(pszOrientation, "EAST"))
   11113        2675 :                         *peOrientation = OAO_East;
   11114          58 :                     else if (EQUAL(pszOrientation, "SOUTH"))
   11115          47 :                         *peOrientation = OAO_South;
   11116          11 :                     else if (EQUAL(pszOrientation, "WEST"))
   11117           0 :                         *peOrientation = OAO_West;
   11118          11 :                     else if (EQUAL(pszOrientation, "UP"))
   11119           1 :                         *peOrientation = OAO_Up;
   11120          10 :                     else if (EQUAL(pszOrientation, "DOWN"))
   11121           0 :                         *peOrientation = OAO_Down;
   11122             :                 }
   11123        7519 :                 proj_destroy(cs);
   11124        7519 :                 d->undoDemoteFromBoundCRS();
   11125        7519 :                 return d->m_osAxisName[iAxis].c_str();
   11126             :             }
   11127           0 :             proj_destroy(cs);
   11128             :         }
   11129           0 :         d->undoDemoteFromBoundCRS();
   11130             :     }
   11131             : 
   11132             :     /* -------------------------------------------------------------------- */
   11133             :     /*      Find the target node.                                           */
   11134             :     /* -------------------------------------------------------------------- */
   11135           0 :     const OGR_SRSNode *poNode = nullptr;
   11136             : 
   11137           0 :     if (pszTargetKey == nullptr)
   11138           0 :         poNode = GetRoot();
   11139             :     else
   11140           0 :         poNode = GetAttrNode(pszTargetKey);
   11141             : 
   11142           0 :     if (poNode == nullptr)
   11143           0 :         return nullptr;
   11144             : 
   11145             :     /* -------------------------------------------------------------------- */
   11146             :     /*      Find desired child AXIS.                                        */
   11147             :     /* -------------------------------------------------------------------- */
   11148           0 :     const OGR_SRSNode *poAxis = nullptr;
   11149           0 :     const int nChildCount = poNode->GetChildCount();
   11150             : 
   11151           0 :     for (int iChild = 0; iChild < nChildCount; iChild++)
   11152             :     {
   11153           0 :         const OGR_SRSNode *poChild = poNode->GetChild(iChild);
   11154             : 
   11155           0 :         if (!EQUAL(poChild->GetValue(), "AXIS"))
   11156           0 :             continue;
   11157             : 
   11158           0 :         if (iAxis == 0)
   11159             :         {
   11160           0 :             poAxis = poChild;
   11161           0 :             break;
   11162             :         }
   11163           0 :         iAxis--;
   11164             :     }
   11165             : 
   11166           0 :     if (poAxis == nullptr)
   11167           0 :         return nullptr;
   11168             : 
   11169           0 :     if (poAxis->GetChildCount() < 2)
   11170           0 :         return nullptr;
   11171             : 
   11172             :     /* -------------------------------------------------------------------- */
   11173             :     /*      Extract name and orientation if possible.                       */
   11174             :     /* -------------------------------------------------------------------- */
   11175           0 :     if (peOrientation != nullptr)
   11176             :     {
   11177           0 :         const char *pszOrientation = poAxis->GetChild(1)->GetValue();
   11178             : 
   11179           0 :         if (EQUAL(pszOrientation, "NORTH"))
   11180           0 :             *peOrientation = OAO_North;
   11181           0 :         else if (EQUAL(pszOrientation, "EAST"))
   11182           0 :             *peOrientation = OAO_East;
   11183           0 :         else if (EQUAL(pszOrientation, "SOUTH"))
   11184           0 :             *peOrientation = OAO_South;
   11185           0 :         else if (EQUAL(pszOrientation, "WEST"))
   11186           0 :             *peOrientation = OAO_West;
   11187           0 :         else if (EQUAL(pszOrientation, "UP"))
   11188           0 :             *peOrientation = OAO_Up;
   11189           0 :         else if (EQUAL(pszOrientation, "DOWN"))
   11190           0 :             *peOrientation = OAO_Down;
   11191           0 :         else if (EQUAL(pszOrientation, "OTHER"))
   11192           0 :             *peOrientation = OAO_Other;
   11193             :         else
   11194             :         {
   11195           0 :             CPLDebug("OSR", "Unrecognized orientation value '%s'.",
   11196             :                      pszOrientation);
   11197             :         }
   11198             :     }
   11199             : 
   11200           0 :     return poAxis->GetChild(0)->GetValue();
   11201             : }
   11202             : 
   11203             : /************************************************************************/
   11204             : /*                             OSRGetAxis()                             */
   11205             : /************************************************************************/
   11206             : 
   11207             : /**
   11208             :  * \brief Fetch the orientation of one axis.
   11209             :  *
   11210             :  * This method is the equivalent of the C++ method OGRSpatialReference::GetAxis
   11211             :  */
   11212          13 : const char *OSRGetAxis(OGRSpatialReferenceH hSRS, const char *pszTargetKey,
   11213             :                        int iAxis, OGRAxisOrientation *peOrientation)
   11214             : 
   11215             : {
   11216          13 :     VALIDATE_POINTER1(hSRS, "OSRGetAxis", nullptr);
   11217             : 
   11218          13 :     return ToPointer(hSRS)->GetAxis(pszTargetKey, iAxis, peOrientation);
   11219             : }
   11220             : 
   11221             : /************************************************************************/
   11222             : /*                         OSRAxisEnumToName()                          */
   11223             : /************************************************************************/
   11224             : 
   11225             : /**
   11226             :  * \brief Return the string representation for the OGRAxisOrientation
   11227             :  * enumeration.
   11228             :  *
   11229             :  * For example "NORTH" for OAO_North.
   11230             :  *
   11231             :  * @return an internal string
   11232             :  */
   11233         396 : const char *OSRAxisEnumToName(OGRAxisOrientation eOrientation)
   11234             : 
   11235             : {
   11236         396 :     if (eOrientation == OAO_North)
   11237         198 :         return "NORTH";
   11238         198 :     if (eOrientation == OAO_East)
   11239         198 :         return "EAST";
   11240           0 :     if (eOrientation == OAO_South)
   11241           0 :         return "SOUTH";
   11242           0 :     if (eOrientation == OAO_West)
   11243           0 :         return "WEST";
   11244           0 :     if (eOrientation == OAO_Up)
   11245           0 :         return "UP";
   11246           0 :     if (eOrientation == OAO_Down)
   11247           0 :         return "DOWN";
   11248           0 :     if (eOrientation == OAO_Other)
   11249           0 :         return "OTHER";
   11250             : 
   11251           0 :     return "UNKNOWN";
   11252             : }
   11253             : 
   11254             : /************************************************************************/
   11255             : /*                              SetAxes()                               */
   11256             : /************************************************************************/
   11257             : 
   11258             : /**
   11259             :  * \brief Set the axes for a coordinate system.
   11260             :  *
   11261             :  * Set the names, and orientations of the axes for either a projected
   11262             :  * (PROJCS) or geographic (GEOGCS) coordinate system.
   11263             :  *
   11264             :  * This method is equivalent to the C function OSRSetAxes().
   11265             :  *
   11266             :  * @param pszTargetKey either "PROJCS" or "GEOGCS", must already exist in SRS.
   11267             :  * @param pszXAxisName name of first axis, normally "Long" or "Easting".
   11268             :  * @param eXAxisOrientation normally OAO_East.
   11269             :  * @param pszYAxisName name of second axis, normally "Lat" or "Northing".
   11270             :  * @param eYAxisOrientation normally OAO_North.
   11271             :  *
   11272             :  * @return OGRERR_NONE on success or an error code.
   11273             :  */
   11274             : 
   11275         198 : OGRErr OGRSpatialReference::SetAxes(const char *pszTargetKey,
   11276             :                                     const char *pszXAxisName,
   11277             :                                     OGRAxisOrientation eXAxisOrientation,
   11278             :                                     const char *pszYAxisName,
   11279             :                                     OGRAxisOrientation eYAxisOrientation)
   11280             : 
   11281             : {
   11282         396 :     TAKE_OPTIONAL_LOCK();
   11283             : 
   11284             :     /* -------------------------------------------------------------------- */
   11285             :     /*      Find the target node.                                           */
   11286             :     /* -------------------------------------------------------------------- */
   11287         198 :     OGR_SRSNode *poNode = nullptr;
   11288             : 
   11289         198 :     if (pszTargetKey == nullptr)
   11290         198 :         poNode = GetRoot();
   11291             :     else
   11292           0 :         poNode = GetAttrNode(pszTargetKey);
   11293             : 
   11294         198 :     if (poNode == nullptr)
   11295           0 :         return OGRERR_FAILURE;
   11296             : 
   11297             :     /* -------------------------------------------------------------------- */
   11298             :     /*      Strip any existing AXIS children.                               */
   11299             :     /* -------------------------------------------------------------------- */
   11300         594 :     while (poNode->FindChild("AXIS") >= 0)
   11301         396 :         poNode->DestroyChild(poNode->FindChild("AXIS"));
   11302             : 
   11303             :     /* -------------------------------------------------------------------- */
   11304             :     /*      Insert desired axes                                             */
   11305             :     /* -------------------------------------------------------------------- */
   11306         198 :     OGR_SRSNode *poAxis = new OGR_SRSNode("AXIS");
   11307             : 
   11308         198 :     poAxis->AddChild(new OGR_SRSNode(pszXAxisName));
   11309         198 :     poAxis->AddChild(new OGR_SRSNode(OSRAxisEnumToName(eXAxisOrientation)));
   11310             : 
   11311         198 :     poNode->AddChild(poAxis);
   11312             : 
   11313         198 :     poAxis = new OGR_SRSNode("AXIS");
   11314             : 
   11315         198 :     poAxis->AddChild(new OGR_SRSNode(pszYAxisName));
   11316         198 :     poAxis->AddChild(new OGR_SRSNode(OSRAxisEnumToName(eYAxisOrientation)));
   11317             : 
   11318         198 :     poNode->AddChild(poAxis);
   11319             : 
   11320         198 :     return OGRERR_NONE;
   11321             : }
   11322             : 
   11323             : /************************************************************************/
   11324             : /*                             OSRSetAxes()                             */
   11325             : /************************************************************************/
   11326             : /**
   11327             :  * \brief Set the axes for a coordinate system.
   11328             :  *
   11329             :  * This method is the equivalent of the C++ method OGRSpatialReference::SetAxes
   11330             :  */
   11331           0 : OGRErr OSRSetAxes(OGRSpatialReferenceH hSRS, const char *pszTargetKey,
   11332             :                   const char *pszXAxisName,
   11333             :                   OGRAxisOrientation eXAxisOrientation,
   11334             :                   const char *pszYAxisName,
   11335             :                   OGRAxisOrientation eYAxisOrientation)
   11336             : {
   11337           0 :     VALIDATE_POINTER1(hSRS, "OSRSetAxes", OGRERR_FAILURE);
   11338             : 
   11339           0 :     return ToPointer(hSRS)->SetAxes(pszTargetKey, pszXAxisName,
   11340             :                                     eXAxisOrientation, pszYAxisName,
   11341           0 :                                     eYAxisOrientation);
   11342             : }
   11343             : 
   11344             : /************************************************************************/
   11345             : /*                       OSRExportToMICoordSys()                        */
   11346             : /************************************************************************/
   11347             : /**
   11348             :  * \brief Export coordinate system in Mapinfo style CoordSys format.
   11349             :  *
   11350             :  * This method is the equivalent of the C++ method
   11351             :  * OGRSpatialReference::exportToMICoordSys
   11352             :  */
   11353           5 : OGRErr OSRExportToMICoordSys(OGRSpatialReferenceH hSRS, char **ppszReturn)
   11354             : 
   11355             : {
   11356           5 :     VALIDATE_POINTER1(hSRS, "OSRExportToMICoordSys", OGRERR_FAILURE);
   11357             : 
   11358           5 :     *ppszReturn = nullptr;
   11359             : 
   11360           5 :     return ToPointer(hSRS)->exportToMICoordSys(ppszReturn);
   11361             : }
   11362             : 
   11363             : /************************************************************************/
   11364             : /*                         exportToMICoordSys()                         */
   11365             : /************************************************************************/
   11366             : 
   11367             : /**
   11368             :  * \brief Export coordinate system in Mapinfo style CoordSys format.
   11369             :  *
   11370             :  * Note that the returned WKT string should be freed with
   11371             :  * CPLFree() when no longer needed.  It is the responsibility of the caller.
   11372             :  *
   11373             :  * This method is the same as the C function OSRExportToMICoordSys().
   11374             :  *
   11375             :  * @param ppszResult pointer to which dynamically allocated Mapinfo CoordSys
   11376             :  * definition will be assigned.
   11377             :  *
   11378             :  * @return OGRERR_NONE on success, OGRERR_FAILURE on failure,
   11379             :  * OGRERR_UNSUPPORTED_OPERATION if MITAB library was not linked in.
   11380             :  */
   11381             : 
   11382           7 : OGRErr OGRSpatialReference::exportToMICoordSys(char **ppszResult) const
   11383             : 
   11384             : {
   11385           7 :     *ppszResult = MITABSpatialRef2CoordSys(this);
   11386           7 :     if (*ppszResult != nullptr && strlen(*ppszResult) > 0)
   11387           7 :         return OGRERR_NONE;
   11388             : 
   11389           0 :     return OGRERR_FAILURE;
   11390             : }
   11391             : 
   11392             : /************************************************************************/
   11393             : /*                       OSRImportFromMICoordSys()                      */
   11394             : /************************************************************************/
   11395             : /**
   11396             :  * \brief Import Mapinfo style CoordSys definition.
   11397             :  *
   11398             :  * This method is the equivalent of the C++ method
   11399             :  * OGRSpatialReference::importFromMICoordSys
   11400             :  */
   11401             : 
   11402           3 : OGRErr OSRImportFromMICoordSys(OGRSpatialReferenceH hSRS,
   11403             :                                const char *pszCoordSys)
   11404             : 
   11405             : {
   11406           3 :     VALIDATE_POINTER1(hSRS, "OSRImportFromMICoordSys", OGRERR_FAILURE);
   11407             : 
   11408           3 :     return ToPointer(hSRS)->importFromMICoordSys(pszCoordSys);
   11409             : }
   11410             : 
   11411             : /************************************************************************/
   11412             : /*                        importFromMICoordSys()                        */
   11413             : /************************************************************************/
   11414             : 
   11415             : /**
   11416             :  * \brief Import Mapinfo style CoordSys definition.
   11417             :  *
   11418             :  * The OGRSpatialReference is initialized from the passed Mapinfo style CoordSys
   11419             :  * definition string.
   11420             :  *
   11421             :  * This method is the equivalent of the C function OSRImportFromMICoordSys().
   11422             :  *
   11423             :  * @param pszCoordSys Mapinfo style CoordSys definition string.
   11424             :  *
   11425             :  * @return OGRERR_NONE on success, OGRERR_FAILURE on failure,
   11426             :  * OGRERR_UNSUPPORTED_OPERATION if MITAB library was not linked in.
   11427             :  */
   11428             : 
   11429          17 : OGRErr OGRSpatialReference::importFromMICoordSys(const char *pszCoordSys)
   11430             : 
   11431             : {
   11432          17 :     OGRSpatialReference *poResult = MITABCoordSys2SpatialRef(pszCoordSys);
   11433             : 
   11434          17 :     if (poResult == nullptr)
   11435           0 :         return OGRERR_FAILURE;
   11436             : 
   11437          17 :     *this = *poResult;
   11438          17 :     delete poResult;
   11439             : 
   11440          17 :     return OGRERR_NONE;
   11441             : }
   11442             : 
   11443             : /************************************************************************/
   11444             : /*                        OSRCalcInvFlattening()                        */
   11445             : /************************************************************************/
   11446             : 
   11447             : /**
   11448             :  * \brief Compute inverse flattening from semi-major and semi-minor axis
   11449             :  *
   11450             :  * @param dfSemiMajor Semi-major axis length.
   11451             :  * @param dfSemiMinor Semi-minor axis length.
   11452             :  *
   11453             :  * @return inverse flattening, or 0 if both axis are equal.
   11454             :  */
   11455             : 
   11456        8627 : double OSRCalcInvFlattening(double dfSemiMajor, double dfSemiMinor)
   11457             : {
   11458        8627 :     if (fabs(dfSemiMajor - dfSemiMinor) < 1e-1)
   11459          27 :         return 0;
   11460        8600 :     if (dfSemiMajor <= 0 || dfSemiMinor <= 0 || dfSemiMinor > dfSemiMajor)
   11461             :     {
   11462           0 :         CPLError(CE_Failure, CPLE_IllegalArg,
   11463             :                  "OSRCalcInvFlattening(): Wrong input values");
   11464           0 :         return 0;
   11465             :     }
   11466             : 
   11467        8600 :     return dfSemiMajor / (dfSemiMajor - dfSemiMinor);
   11468             : }
   11469             : 
   11470             : /************************************************************************/
   11471             : /*                        OSRCalcInvFlattening()                        */
   11472             : /************************************************************************/
   11473             : 
   11474             : /**
   11475             :  * \brief Compute semi-minor axis from semi-major axis and inverse flattening.
   11476             :  *
   11477             :  * @param dfSemiMajor Semi-major axis length.
   11478             :  * @param dfInvFlattening Inverse flattening or 0 for sphere.
   11479             :  *
   11480             :  * @return semi-minor axis
   11481             :  */
   11482             : 
   11483         655 : double OSRCalcSemiMinorFromInvFlattening(double dfSemiMajor,
   11484             :                                          double dfInvFlattening)
   11485             : {
   11486         655 :     if (fabs(dfInvFlattening) < 0.000000000001)
   11487         103 :         return dfSemiMajor;
   11488         552 :     if (dfSemiMajor <= 0.0 || dfInvFlattening <= 1.0)
   11489             :     {
   11490           0 :         CPLError(CE_Failure, CPLE_IllegalArg,
   11491             :                  "OSRCalcSemiMinorFromInvFlattening(): Wrong input values");
   11492           0 :         return dfSemiMajor;
   11493             :     }
   11494             : 
   11495         552 :     return dfSemiMajor * (1.0 - 1.0 / dfInvFlattening);
   11496             : }
   11497             : 
   11498             : /************************************************************************/
   11499             : /*                        GetWGS84SRS()                                 */
   11500             : /************************************************************************/
   11501             : 
   11502             : static OGRSpatialReference *poSRSWGS84 = nullptr;
   11503             : static CPLMutex *hMutex = nullptr;
   11504             : 
   11505             : /**
   11506             :  * \brief Returns an instance of a SRS object with WGS84 WKT.
   11507             :  *
   11508             :  * Note: the instance will have
   11509             :  * SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER)
   11510             :  *
   11511             :  * The reference counter of the returned object is not increased by this
   11512             :  * operation.
   11513             :  *
   11514             :  * @return instance.
   11515             :  */
   11516             : 
   11517        1003 : OGRSpatialReference *OGRSpatialReference::GetWGS84SRS()
   11518             : {
   11519        1003 :     CPLMutexHolderD(&hMutex);
   11520        1003 :     if (poSRSWGS84 == nullptr)
   11521             :     {
   11522           5 :         poSRSWGS84 = new OGRSpatialReference(SRS_WKT_WGS84_LAT_LONG);
   11523           5 :         poSRSWGS84->SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
   11524             :     }
   11525        2006 :     return poSRSWGS84;
   11526             : }
   11527             : 
   11528             : /************************************************************************/
   11529             : /*                        CleanupSRSWGS84Mutex()                       */
   11530             : /************************************************************************/
   11531             : 
   11532        1131 : static void CleanupSRSWGS84Mutex()
   11533             : {
   11534        1131 :     if (hMutex != nullptr)
   11535             :     {
   11536           3 :         poSRSWGS84->Release();
   11537           3 :         poSRSWGS84 = nullptr;
   11538           3 :         CPLDestroyMutex(hMutex);
   11539           3 :         hMutex = nullptr;
   11540             :     }
   11541        1131 : }
   11542             : 
   11543             : /************************************************************************/
   11544             : /*                         OSRImportFromProj4()                         */
   11545             : /************************************************************************/
   11546             : /**
   11547             :  * \brief Import PROJ coordinate string.
   11548             :  *
   11549             :  * This function is the same as OGRSpatialReference::importFromProj4().
   11550             :  */
   11551         220 : OGRErr OSRImportFromProj4(OGRSpatialReferenceH hSRS, const char *pszProj4)
   11552             : 
   11553             : {
   11554         220 :     VALIDATE_POINTER1(hSRS, "OSRImportFromProj4", OGRERR_FAILURE);
   11555             : 
   11556         220 :     return OGRSpatialReference::FromHandle(hSRS)->importFromProj4(pszProj4);
   11557             : }
   11558             : 
   11559             : /************************************************************************/
   11560             : /*                          importFromProj4()                           */
   11561             : /************************************************************************/
   11562             : 
   11563             : /**
   11564             :  * \brief Import PROJ coordinate string.
   11565             :  *
   11566             :  * The OGRSpatialReference is initialized from the passed PROJs style
   11567             :  * coordinate system string.
   11568             :  *
   11569             :  * Example:
   11570             :  *   pszProj4 = "+proj=utm +zone=11 +datum=WGS84"
   11571             :  *
   11572             :  * It is also possible to import "+init=epsg:n" style definitions. Those are
   11573             :  * a legacy syntax that should be avoided in the future. In particular they will
   11574             :  * result in CRS objects whose axis order might not correspond to the official
   11575             :  * EPSG axis order.
   11576             :  *
   11577             :  * This method is the equivalent of the C function OSRImportFromProj4().
   11578             :  *
   11579             :  * @param pszProj4 the PROJ style string.
   11580             :  *
   11581             :  * @return OGRERR_NONE on success or OGRERR_CORRUPT_DATA on failure.
   11582             :  */
   11583             : 
   11584         764 : OGRErr OGRSpatialReference::importFromProj4(const char *pszProj4)
   11585             : 
   11586             : {
   11587        1528 :     TAKE_OPTIONAL_LOCK();
   11588             : 
   11589         764 :     if (strlen(pszProj4) >= 10000)
   11590             :     {
   11591           1 :         CPLError(CE_Failure, CPLE_AppDefined, "Too long PROJ string");
   11592           1 :         return OGRERR_CORRUPT_DATA;
   11593             :     }
   11594             : 
   11595             :     /* -------------------------------------------------------------------- */
   11596             :     /*      Clear any existing definition.                                  */
   11597             :     /* -------------------------------------------------------------------- */
   11598         763 :     Clear();
   11599             : 
   11600         763 :     CPLString osProj4(pszProj4);
   11601         763 :     if (osProj4.find("type=crs") == std::string::npos)
   11602             :     {
   11603         754 :         osProj4 += " +type=crs";
   11604             :     }
   11605             : 
   11606         765 :     if (osProj4.find("+init=epsg:") != std::string::npos &&
   11607           2 :         getenv("PROJ_USE_PROJ4_INIT_RULES") == nullptr)
   11608             :     {
   11609           2 :         CPLErrorOnce(CE_Warning, CPLE_AppDefined,
   11610             :                      "+init=epsg:XXXX syntax is deprecated. It might return "
   11611             :                      "a CRS with a non-EPSG compliant axis order.");
   11612             :     }
   11613         763 :     proj_context_use_proj4_init_rules(d->getPROJContext(), true);
   11614         763 :     d->setPjCRS(proj_create(d->getPROJContext(), osProj4.c_str()));
   11615         763 :     proj_context_use_proj4_init_rules(d->getPROJContext(), false);
   11616         763 :     return d->m_pj_crs ? OGRERR_NONE : OGRERR_CORRUPT_DATA;
   11617             : }
   11618             : 
   11619             : /************************************************************************/
   11620             : /*                          OSRExportToProj4()                          */
   11621             : /************************************************************************/
   11622             : /**
   11623             :  * \brief Export coordinate system in PROJ.4 legacy format.
   11624             :  *
   11625             :  * \warning Use of this function is discouraged. Its behavior in GDAL &gt;= 3 /
   11626             :  * PROJ &gt;= 6 is significantly different from earlier versions. In particular
   11627             :  * +datum will only encode WGS84, NAD27 and NAD83, and +towgs84/+nadgrids terms
   11628             :  * will be missing most of the time. PROJ strings to encode CRS should be
   11629             :  * considered as a legacy solution. Using a AUTHORITY:CODE or WKT representation
   11630             :  * is the recommended way.
   11631             :  *
   11632             :  * This function is the same as OGRSpatialReference::exportToProj4().
   11633             :  */
   11634         455 : OGRErr CPL_STDCALL OSRExportToProj4(OGRSpatialReferenceH hSRS,
   11635             :                                     char **ppszReturn)
   11636             : 
   11637             : {
   11638         455 :     VALIDATE_POINTER1(hSRS, "OSRExportToProj4", OGRERR_FAILURE);
   11639             : 
   11640         455 :     *ppszReturn = nullptr;
   11641             : 
   11642         455 :     return OGRSpatialReference::FromHandle(hSRS)->exportToProj4(ppszReturn);
   11643             : }
   11644             : 
   11645             : /************************************************************************/
   11646             : /*                           exportToProj4()                            */
   11647             : /************************************************************************/
   11648             : 
   11649             : /**
   11650             :  * \brief Export coordinate system in PROJ.4 legacy format.
   11651             :  *
   11652             :  * \warning Use of this function is discouraged. Its behavior in GDAL &gt;= 3 /
   11653             :  * PROJ &gt;= 6 is significantly different from earlier versions. In particular
   11654             :  * +datum will only encode WGS84, NAD27 and NAD83, and +towgs84/+nadgrids terms
   11655             :  * will be missing most of the time. PROJ strings to encode CRS should be
   11656             :  * considered as a a legacy solution. Using a AUTHORITY:CODE or WKT
   11657             :  * representation is the recommended way.
   11658             :  *
   11659             :  * Converts the loaded coordinate reference system into PROJ format
   11660             :  * to the extent possible.  The string returned in ppszProj4 should be
   11661             :  * deallocated by the caller with CPLFree() when no longer needed.
   11662             :  *
   11663             :  * LOCAL_CS coordinate systems are not translatable.  An empty string
   11664             :  * will be returned along with OGRERR_NONE.
   11665             :  *
   11666             :  * Special processing for Transverse Mercator:
   11667             :  * Starting with GDAL 3.0, if the OSR_USE_APPROX_TMERC configuration option is
   11668             :  * set to YES, the PROJ definition built from the SRS will use the +approx flag
   11669             :  * for the tmerc and utm projection methods, rather than the more accurate
   11670             :  * method.
   11671             :  *
   11672             :  * Starting with GDAL 3.0.3, this method will try to add a +towgs84 parameter,
   11673             :  * if there's none attached yet to the SRS and if the SRS has a EPSG code.
   11674             :  * See the AddGuessedTOWGS84() method for how this +towgs84 parameter may be
   11675             :  * added. This automatic addition may be disabled by setting the
   11676             :  * OSR_ADD_TOWGS84_ON_EXPORT_TO_PROJ4 configuration option to NO.
   11677             :  *
   11678             :  * This method is the equivalent of the C function OSRExportToProj4().
   11679             :  *
   11680             :  * @param ppszProj4 pointer to which dynamically allocated PROJ definition
   11681             :  * will be assigned.
   11682             :  *
   11683             :  * @return OGRERR_NONE on success or an error code on failure.
   11684             :  */
   11685             : 
   11686        1484 : OGRErr OGRSpatialReference::exportToProj4(char **ppszProj4) const
   11687             : 
   11688             : {
   11689             :     // In the past calling this method was thread-safe, even if we never
   11690             :     // guaranteed it. Now proj_as_proj_string() will cache the result
   11691             :     // internally, so this is no longer thread-safe.
   11692        2968 :     std::lock_guard oLock(d->m_mutex);
   11693             : 
   11694        1484 :     d->refreshProjObj();
   11695        1484 :     if (d->m_pj_crs == nullptr || d->m_pjType == PJ_TYPE_ENGINEERING_CRS)
   11696             :     {
   11697           4 :         *ppszProj4 = CPLStrdup("");
   11698           4 :         return OGRERR_FAILURE;
   11699             :     }
   11700             : 
   11701             :     // OSR_USE_ETMERC is here just for legacy
   11702        1480 :     bool bForceApproxTMerc = false;
   11703        1480 :     const char *pszUseETMERC = CPLGetConfigOption("OSR_USE_ETMERC", nullptr);
   11704        1480 :     if (pszUseETMERC && pszUseETMERC[0])
   11705             :     {
   11706           0 :         CPLErrorOnce(CE_Warning, CPLE_AppDefined,
   11707             :                      "OSR_USE_ETMERC is a legacy configuration option, which "
   11708             :                      "now has only effect when set to NO (YES is the default). "
   11709             :                      "Use OSR_USE_APPROX_TMERC=YES instead");
   11710           0 :         bForceApproxTMerc = !CPLTestBool(pszUseETMERC);
   11711             :     }
   11712             :     else
   11713             :     {
   11714             :         const char *pszUseApproxTMERC =
   11715        1480 :             CPLGetConfigOption("OSR_USE_APPROX_TMERC", nullptr);
   11716        1480 :         if (pszUseApproxTMERC && pszUseApproxTMERC[0])
   11717             :         {
   11718           2 :             bForceApproxTMerc = CPLTestBool(pszUseApproxTMERC);
   11719             :         }
   11720             :     }
   11721        1480 :     const char *options[] = {
   11722        1480 :         bForceApproxTMerc ? "USE_APPROX_TMERC=YES" : nullptr, nullptr};
   11723             : 
   11724        1480 :     const char *projString = proj_as_proj_string(
   11725        1480 :         d->getPROJContext(), d->m_pj_crs, PJ_PROJ_4, options);
   11726             : 
   11727        1480 :     PJ *boundCRS = nullptr;
   11728        2956 :     if (projString &&
   11729        1476 :         (strstr(projString, "+datum=") == nullptr ||
   11730        2966 :          d->m_pjType == PJ_TYPE_COMPOUND_CRS) &&
   11731         561 :         CPLTestBool(
   11732             :             CPLGetConfigOption("OSR_ADD_TOWGS84_ON_EXPORT_TO_PROJ4", "YES")))
   11733             :     {
   11734         561 :         boundCRS = GDAL_proj_crs_create_bound_crs_to_WGS84(
   11735         561 :             d->getPROJContext(), d->m_pj_crs, true,
   11736         561 :             strstr(projString, "+datum=") == nullptr);
   11737         561 :         if (boundCRS)
   11738             :         {
   11739         227 :             projString = proj_as_proj_string(d->getPROJContext(), boundCRS,
   11740             :                                              PJ_PROJ_4, options);
   11741             :         }
   11742             :     }
   11743             : 
   11744        1480 :     if (projString == nullptr)
   11745             :     {
   11746           4 :         *ppszProj4 = CPLStrdup("");
   11747           4 :         proj_destroy(boundCRS);
   11748           4 :         return OGRERR_FAILURE;
   11749             :     }
   11750        1476 :     *ppszProj4 = CPLStrdup(projString);
   11751        1476 :     proj_destroy(boundCRS);
   11752        1476 :     char *pszTypeCrs = strstr(*ppszProj4, " +type=crs");
   11753        1476 :     if (pszTypeCrs)
   11754        1476 :         *pszTypeCrs = '\0';
   11755        1476 :     return OGRERR_NONE;
   11756             : }
   11757             : 
   11758             : /************************************************************************/
   11759             : /*                            morphToESRI()                             */
   11760             : /************************************************************************/
   11761             : /**
   11762             :  * \brief Convert in place to ESRI WKT format.
   11763             :  *
   11764             :  * The value nodes of this coordinate system are modified in various manners
   11765             :  * more closely map onto the ESRI concept of WKT format.  This includes
   11766             :  * renaming a variety of projections and arguments, and stripping out
   11767             :  * nodes note recognised by ESRI (like AUTHORITY and AXIS).
   11768             :  *
   11769             :  * \note Since GDAL 3.0, this function has only user-visible effects at
   11770             :  * exportToWkt() time. It is recommended to use instead exportToWkt(char**,
   11771             :  * const char* const char*) const with options having FORMAT=WKT1_ESRI.
   11772             :  *
   11773             :  * This does the same as the C function OSRMorphToESRI().
   11774             :  *
   11775             :  * @return OGRERR_NONE unless something goes badly wrong.
   11776             :  * @deprecated
   11777             :  */
   11778             : 
   11779         235 : OGRErr OGRSpatialReference::morphToESRI()
   11780             : 
   11781             : {
   11782         235 :     TAKE_OPTIONAL_LOCK();
   11783             : 
   11784         235 :     d->refreshProjObj();
   11785         235 :     d->setMorphToESRI(true);
   11786             : 
   11787         470 :     return OGRERR_NONE;
   11788             : }
   11789             : 
   11790             : /************************************************************************/
   11791             : /*                           OSRMorphToESRI()                           */
   11792             : /************************************************************************/
   11793             : 
   11794             : /**
   11795             :  * \brief Convert in place to ESRI WKT format.
   11796             :  *
   11797             :  * This function is the same as the C++ method
   11798             :  * OGRSpatialReference::morphToESRI().
   11799             :  */
   11800          71 : OGRErr OSRMorphToESRI(OGRSpatialReferenceH hSRS)
   11801             : 
   11802             : {
   11803          71 :     VALIDATE_POINTER1(hSRS, "OSRMorphToESRI", OGRERR_FAILURE);
   11804             : 
   11805          71 :     return OGRSpatialReference::FromHandle(hSRS)->morphToESRI();
   11806             : }
   11807             : 
   11808             : /************************************************************************/
   11809             : /*                           morphFromESRI()                            */
   11810             : /************************************************************************/
   11811             : 
   11812             : /**
   11813             :  * \brief Convert in place from ESRI WKT format.
   11814             :  *
   11815             :  * The value notes of this coordinate system are modified in various manners
   11816             :  * to adhere more closely to the WKT standard.  This mostly involves
   11817             :  * translating a variety of ESRI names for projections, arguments and
   11818             :  * datums to "standard" names, as defined by Adam Gawne-Cain's reference
   11819             :  * translation of EPSG to WKT for the CT specification.
   11820             :  *
   11821             :  * \note Since GDAL 3.0, this function is essentially a no-operation, since
   11822             :  * morphing from ESRI is automatically done by importFromWkt(). Its only
   11823             :  * effect is to undo the effect of a potential prior call to morphToESRI().
   11824             :  *
   11825             :  * This does the same as the C function OSRMorphFromESRI().
   11826             :  *
   11827             :  * @return OGRERR_NONE unless something goes badly wrong.
   11828             :  * @deprecated
   11829             :  */
   11830             : 
   11831          21 : OGRErr OGRSpatialReference::morphFromESRI()
   11832             : 
   11833             : {
   11834          21 :     TAKE_OPTIONAL_LOCK();
   11835             : 
   11836          21 :     d->refreshProjObj();
   11837          21 :     d->setMorphToESRI(false);
   11838             : 
   11839          42 :     return OGRERR_NONE;
   11840             : }
   11841             : 
   11842             : /************************************************************************/
   11843             : /*                          OSRMorphFromESRI()                          */
   11844             : /************************************************************************/
   11845             : 
   11846             : /**
   11847             :  * \brief Convert in place from ESRI WKT format.
   11848             :  *
   11849             :  * This function is the same as the C++ method
   11850             :  * OGRSpatialReference::morphFromESRI().
   11851             :  */
   11852          20 : OGRErr OSRMorphFromESRI(OGRSpatialReferenceH hSRS)
   11853             : 
   11854             : {
   11855          20 :     VALIDATE_POINTER1(hSRS, "OSRMorphFromESRI", OGRERR_FAILURE);
   11856             : 
   11857          20 :     return OGRSpatialReference::FromHandle(hSRS)->morphFromESRI();
   11858             : }
   11859             : 
   11860             : /************************************************************************/
   11861             : /*                            FindMatches()                             */
   11862             : /************************************************************************/
   11863             : 
   11864             : /**
   11865             :  * \brief Try to identify a match between the passed SRS and a related SRS
   11866             :  * in a catalog.
   11867             :  *
   11868             :  * Matching may be partial, or may fail.
   11869             :  * Returned entries will be sorted by decreasing match confidence (first
   11870             :  * entry has the highest match confidence).
   11871             :  *
   11872             :  * The exact way matching is done may change in future versions. Starting with
   11873             :  * GDAL 3.0, it relies on PROJ' proj_identify() function.
   11874             :  *
   11875             :  * This method is the same as OSRFindMatches().
   11876             :  *
   11877             :  * @param papszOptions NULL terminated list of options or NULL
   11878             :  * @param pnEntries Output parameter. Number of values in the returned array.
   11879             :  * @param ppanMatchConfidence Output parameter (or NULL). *ppanMatchConfidence
   11880             :  * will be allocated to an array of *pnEntries whose values between 0 and 100
   11881             :  * indicate the confidence in the match. 100 is the highest confidence level.
   11882             :  * The array must be freed with CPLFree().
   11883             :  *
   11884             :  * @return an array of SRS that match the passed SRS, or NULL. Must be freed
   11885             :  * with OSRFreeSRSArray()
   11886             :  *
   11887             :  *
   11888             :  * @see OGRSpatialReference::FindBestMatch()
   11889             :  */
   11890             : OGRSpatialReferenceH *
   11891        1453 : OGRSpatialReference::FindMatches(char **papszOptions, int *pnEntries,
   11892             :                                  int **ppanMatchConfidence) const
   11893             : {
   11894        2906 :     TAKE_OPTIONAL_LOCK();
   11895             : 
   11896        1453 :     CPL_IGNORE_RET_VAL(papszOptions);
   11897             : 
   11898        1453 :     if (pnEntries)
   11899        1453 :         *pnEntries = 0;
   11900        1453 :     if (ppanMatchConfidence)
   11901        1453 :         *ppanMatchConfidence = nullptr;
   11902             : 
   11903        1453 :     d->refreshProjObj();
   11904        1453 :     if (!d->m_pj_crs)
   11905           0 :         return nullptr;
   11906             : 
   11907        1453 :     int *panConfidence = nullptr;
   11908        1453 :     auto ctxt = d->getPROJContext();
   11909             :     auto list =
   11910        1453 :         proj_identify(ctxt, d->m_pj_crs, nullptr, nullptr, &panConfidence);
   11911        1453 :     if (!list)
   11912           0 :         return nullptr;
   11913             : 
   11914        1453 :     const int nMatches = proj_list_get_count(list);
   11915             : 
   11916        1453 :     if (pnEntries)
   11917        1453 :         *pnEntries = static_cast<int>(nMatches);
   11918             :     OGRSpatialReferenceH *pahRet = static_cast<OGRSpatialReferenceH *>(
   11919        1453 :         CPLCalloc(sizeof(OGRSpatialReferenceH), nMatches + 1));
   11920        1453 :     if (ppanMatchConfidence)
   11921             :     {
   11922        1453 :         *ppanMatchConfidence =
   11923        1453 :             static_cast<int *>(CPLMalloc(sizeof(int) * (nMatches + 1)));
   11924             :     }
   11925             : 
   11926        1453 :     bool bSortAgain = false;
   11927             : 
   11928        4292 :     for (int i = 0; i < nMatches; i++)
   11929             :     {
   11930        2839 :         PJ *obj = proj_list_get(ctxt, list, i);
   11931        2839 :         CPLAssert(obj);
   11932        2839 :         OGRSpatialReference *poSRS = new OGRSpatialReference();
   11933        2839 :         poSRS->d->setPjCRS(obj);
   11934        2839 :         pahRet[i] = ToHandle(poSRS);
   11935             : 
   11936             :         // Identify matches that only differ by axis order
   11937           9 :         if (panConfidence[i] == 50 && GetAxesCount() == 2 &&
   11938        2857 :             poSRS->GetAxesCount() == 2 &&
   11939        2848 :             GetDataAxisToSRSAxisMapping() == std::vector<int>{1, 2})
   11940             :         {
   11941           9 :             OGRAxisOrientation eThisAxis0 = OAO_Other;
   11942           9 :             OGRAxisOrientation eThisAxis1 = OAO_Other;
   11943           9 :             OGRAxisOrientation eSRSAxis0 = OAO_Other;
   11944           9 :             OGRAxisOrientation eSRSAxis1 = OAO_Other;
   11945           9 :             GetAxis(nullptr, 0, &eThisAxis0);
   11946           9 :             GetAxis(nullptr, 1, &eThisAxis1);
   11947           9 :             poSRS->GetAxis(nullptr, 0, &eSRSAxis0);
   11948           9 :             poSRS->GetAxis(nullptr, 1, &eSRSAxis1);
   11949           9 :             if (eThisAxis0 == OAO_East && eThisAxis1 == OAO_North &&
   11950           9 :                 eSRSAxis0 == OAO_North && eSRSAxis1 == OAO_East)
   11951             :             {
   11952             :                 auto pj_crs_normalized =
   11953           9 :                     proj_normalize_for_visualization(ctxt, poSRS->d->m_pj_crs);
   11954           9 :                 if (pj_crs_normalized)
   11955             :                 {
   11956           9 :                     if (proj_is_equivalent_to(d->m_pj_crs, pj_crs_normalized,
   11957           9 :                                               PJ_COMP_EQUIVALENT))
   11958             :                     {
   11959           3 :                         bSortAgain = true;
   11960           3 :                         panConfidence[i] = 90;
   11961           3 :                         poSRS->SetDataAxisToSRSAxisMapping({2, 1});
   11962             :                     }
   11963           9 :                     proj_destroy(pj_crs_normalized);
   11964             :                 }
   11965             :             }
   11966             :         }
   11967             : 
   11968        2839 :         if (ppanMatchConfidence)
   11969        2839 :             (*ppanMatchConfidence)[i] = panConfidence[i];
   11970             :     }
   11971             : 
   11972        1453 :     if (bSortAgain)
   11973             :     {
   11974           3 :         std::vector<int> anIndices;
   11975          12 :         for (int i = 0; i < nMatches; ++i)
   11976           9 :             anIndices.push_back(i);
   11977             : 
   11978           3 :         std::stable_sort(anIndices.begin(), anIndices.end(),
   11979           9 :                          [&panConfidence](int i, int j)
   11980           9 :                          { return panConfidence[i] > panConfidence[j]; });
   11981             : 
   11982             :         OGRSpatialReferenceH *pahRetSorted =
   11983             :             static_cast<OGRSpatialReferenceH *>(
   11984           3 :                 CPLCalloc(sizeof(OGRSpatialReferenceH), nMatches + 1));
   11985          12 :         for (int i = 0; i < nMatches; ++i)
   11986             :         {
   11987           9 :             pahRetSorted[i] = pahRet[anIndices[i]];
   11988           9 :             if (ppanMatchConfidence)
   11989           9 :                 (*ppanMatchConfidence)[i] = panConfidence[anIndices[i]];
   11990             :         }
   11991           3 :         CPLFree(pahRet);
   11992           3 :         pahRet = pahRetSorted;
   11993             :     }
   11994             : 
   11995        1453 :     pahRet[nMatches] = nullptr;
   11996        1453 :     proj_list_destroy(list);
   11997        1453 :     proj_int_list_destroy(panConfidence);
   11998             : 
   11999        1453 :     return pahRet;
   12000             : }
   12001             : 
   12002             : /************************************************************************/
   12003             : /*                          importFromEPSGA()                           */
   12004             : /************************************************************************/
   12005             : 
   12006             : /**
   12007             :  * \brief  Initialize SRS based on EPSG geographic, projected or vertical CRS
   12008             :  * code.
   12009             :  *
   12010             :  * This method will initialize the spatial reference based on the
   12011             :  * passed in EPSG CRS code found in the PROJ database.
   12012             :  *
   12013             :  * Since GDAL 3.0, this method is identical to importFromEPSG().
   12014             :  *
   12015             :  * Before GDAL 3.0.3, this method would try to attach a 3-parameter or
   12016             :  * 7-parameter Helmert transformation to WGS84 when there is one and only one
   12017             :  * such method available for the CRS. This behavior might not always be
   12018             :  * desirable, so starting with GDAL 3.0.3, this is no longer done unless
   12019             :  * the OSR_ADD_TOWGS84_ON_IMPORT_FROM_EPSG configuration option is set to YES.
   12020             :  * The AddGuessedTOWGS84() method can also be used for that purpose.
   12021             :  *
   12022             :  * The method will also by default substitute a deprecated EPSG code by its
   12023             :  * non-deprecated replacement. If this behavior is not desired, the
   12024             :  * OSR_USE_NON_DEPRECATED configuration option can be set to NO.
   12025             :  *
   12026             :  * This method is the same as the C function OSRImportFromEPSGA().
   12027             :  *
   12028             :  * @param nCode a CRS code.
   12029             :  *
   12030             :  * @return OGRERR_NONE on success, or an error code on failure.
   12031             :  */
   12032             : 
   12033       44720 : OGRErr OGRSpatialReference::importFromEPSGA(int nCode)
   12034             : 
   12035             : {
   12036       89440 :     TAKE_OPTIONAL_LOCK();
   12037             : 
   12038       44720 :     Clear();
   12039             : 
   12040             :     const char *pszUseNonDeprecated =
   12041       44720 :         CPLGetConfigOption("OSR_USE_NON_DEPRECATED", nullptr);
   12042             :     const bool bUseNonDeprecated =
   12043       44720 :         CPLTestBool(pszUseNonDeprecated ? pszUseNonDeprecated : "YES");
   12044       44720 :     const bool bAddTOWGS84 = CPLTestBool(
   12045             :         CPLGetConfigOption("OSR_ADD_TOWGS84_ON_IMPORT_FROM_EPSG", "NO"));
   12046       44720 :     auto tlsCache = OSRGetProjTLSCache();
   12047       44720 :     if (tlsCache)
   12048             :     {
   12049             :         auto cachedObj =
   12050       44720 :             tlsCache->GetPJForEPSGCode(nCode, bUseNonDeprecated, bAddTOWGS84);
   12051       44720 :         if (cachedObj)
   12052             :         {
   12053       34528 :             d->setPjCRS(cachedObj);
   12054       34528 :             return OGRERR_NONE;
   12055             :         }
   12056             :     }
   12057             : 
   12058       20384 :     CPLString osCode;
   12059       10192 :     osCode.Printf("%d", nCode);
   12060             :     PJ *obj;
   12061       10192 :     constexpr int FIRST_NON_DEPRECATED_ESRI_CODE = 53001;
   12062       10192 :     if (nCode < FIRST_NON_DEPRECATED_ESRI_CODE)
   12063             :     {
   12064       10187 :         obj = proj_create_from_database(d->getPROJContext(), "EPSG",
   12065             :                                         osCode.c_str(), PJ_CATEGORY_CRS, true,
   12066             :                                         nullptr);
   12067       10187 :         if (!obj)
   12068             :         {
   12069          24 :             return OGRERR_FAILURE;
   12070             :         }
   12071             :     }
   12072             :     else
   12073             :     {
   12074             :         // Likely to be an ESRI CRS...
   12075           5 :         CPLErr eLastErrorType = CE_None;
   12076           5 :         CPLErrorNum eLastErrorNum = CPLE_None;
   12077           5 :         std::string osLastErrorMsg;
   12078           5 :         bool bIsESRI = false;
   12079             :         {
   12080          10 :             CPLErrorStateBackuper oBackuper(CPLQuietErrorHandler);
   12081           5 :             CPLErrorReset();
   12082           5 :             obj = proj_create_from_database(d->getPROJContext(), "EPSG",
   12083             :                                             osCode.c_str(), PJ_CATEGORY_CRS,
   12084             :                                             true, nullptr);
   12085           5 :             if (!obj)
   12086             :             {
   12087           2 :                 eLastErrorType = CPLGetLastErrorType();
   12088           2 :                 eLastErrorNum = CPLGetLastErrorNo();
   12089           2 :                 osLastErrorMsg = CPLGetLastErrorMsg();
   12090           2 :                 obj = proj_create_from_database(d->getPROJContext(), "ESRI",
   12091             :                                                 osCode.c_str(), PJ_CATEGORY_CRS,
   12092             :                                                 true, nullptr);
   12093           2 :                 if (obj)
   12094           1 :                     bIsESRI = true;
   12095             :             }
   12096             :         }
   12097           5 :         if (!obj)
   12098             :         {
   12099           1 :             if (eLastErrorType != CE_None)
   12100           1 :                 CPLError(eLastErrorType, eLastErrorNum, "%s",
   12101             :                          osLastErrorMsg.c_str());
   12102           1 :             return OGRERR_FAILURE;
   12103             :         }
   12104           4 :         if (bIsESRI)
   12105             :         {
   12106           1 :             CPLError(CE_Warning, CPLE_AppDefined,
   12107             :                      "EPSG:%d is not a valid CRS code, but ESRI:%d is. "
   12108             :                      "Assuming ESRI:%d was meant",
   12109             :                      nCode, nCode, nCode);
   12110             :         }
   12111             :     }
   12112             : 
   12113       10167 :     if (bUseNonDeprecated && proj_is_deprecated(obj))
   12114             :     {
   12115         410 :         auto list = proj_get_non_deprecated(d->getPROJContext(), obj);
   12116         410 :         if (list)
   12117             :         {
   12118         410 :             const auto count = proj_list_get_count(list);
   12119         410 :             if (count == 1)
   12120             :             {
   12121             :                 auto nonDeprecated =
   12122         359 :                     proj_list_get(d->getPROJContext(), list, 0);
   12123         359 :                 if (nonDeprecated)
   12124             :                 {
   12125         359 :                     if (pszUseNonDeprecated == nullptr)
   12126             :                     {
   12127             :                         const char *pszNewAuth =
   12128         359 :                             proj_get_id_auth_name(nonDeprecated, 0);
   12129             :                         const char *pszNewCode =
   12130         359 :                             proj_get_id_code(nonDeprecated, 0);
   12131         359 :                         CPLError(CE_Warning, CPLE_AppDefined,
   12132             :                                  "CRS EPSG:%d is deprecated. "
   12133             :                                  "Its non-deprecated replacement %s:%s "
   12134             :                                  "will be used instead. "
   12135             :                                  "To use the original CRS, set the "
   12136             :                                  "OSR_USE_NON_DEPRECATED "
   12137             :                                  "configuration option to NO.",
   12138             :                                  nCode, pszNewAuth ? pszNewAuth : "(null)",
   12139             :                                  pszNewCode ? pszNewCode : "(null)");
   12140             :                     }
   12141         359 :                     proj_destroy(obj);
   12142         359 :                     obj = nonDeprecated;
   12143             :                 }
   12144             :             }
   12145             :         }
   12146         410 :         proj_list_destroy(list);
   12147             :     }
   12148             : 
   12149       10167 :     if (bAddTOWGS84)
   12150             :     {
   12151           1 :         auto boundCRS = proj_crs_create_bound_crs_to_WGS84(d->getPROJContext(),
   12152             :                                                            obj, nullptr);
   12153           1 :         if (boundCRS)
   12154             :         {
   12155           1 :             proj_destroy(obj);
   12156           1 :             obj = boundCRS;
   12157             :         }
   12158             :     }
   12159             : 
   12160       10167 :     d->setPjCRS(obj);
   12161             : 
   12162       10167 :     if (tlsCache)
   12163             :     {
   12164       10167 :         tlsCache->CachePJForEPSGCode(nCode, bUseNonDeprecated, bAddTOWGS84,
   12165             :                                      obj);
   12166             :     }
   12167             : 
   12168       10167 :     return OGRERR_NONE;
   12169             : }
   12170             : 
   12171             : /************************************************************************/
   12172             : /*                          AddGuessedTOWGS84()                         */
   12173             : /************************************************************************/
   12174             : 
   12175             : /**
   12176             :  * \brief  Try to add a a 3-parameter or 7-parameter Helmert transformation
   12177             :  * to WGS84.
   12178             :  *
   12179             :  * This method try to attach a 3-parameter or 7-parameter Helmert transformation
   12180             :  * to WGS84 when there is one and only one such method available for the CRS.
   12181             :  * Note: this is more restrictive to how GDAL < 3 worked.
   12182             :  *
   12183             :  * This method is the same as the C function OSRAddGuessedTOWGS84().
   12184             :  *
   12185             :  * @return OGRERR_NONE on success, or an error code on failure (the CRS has
   12186             :  * already a transformation to WGS84 or none matching could be found).
   12187             :  *
   12188             :  * @since GDAL 3.0.3
   12189             :  */
   12190          18 : OGRErr OGRSpatialReference::AddGuessedTOWGS84()
   12191             : {
   12192          36 :     TAKE_OPTIONAL_LOCK();
   12193             : 
   12194          18 :     d->refreshProjObj();
   12195          18 :     if (!d->m_pj_crs)
   12196           0 :         return OGRERR_FAILURE;
   12197          18 :     auto boundCRS = GDAL_proj_crs_create_bound_crs_to_WGS84(
   12198          18 :         d->getPROJContext(), d->m_pj_crs, false, true);
   12199          18 :     if (!boundCRS)
   12200             :     {
   12201           0 :         return OGRERR_FAILURE;
   12202             :     }
   12203          18 :     d->setPjCRS(boundCRS);
   12204          18 :     return OGRERR_NONE;
   12205             : }
   12206             : 
   12207             : /************************************************************************/
   12208             : /*                         OSRImportFromEPSGA()                         */
   12209             : /************************************************************************/
   12210             : 
   12211             : /**
   12212             :  * \brief  Try to add a a 3-parameter or 7-parameter Helmert transformation
   12213             :  * to WGS84.
   12214             :  *
   12215             :  * This function is the same as OGRSpatialReference::AddGuessedTOWGS84().
   12216             :  *
   12217             :  * @since GDAL 3.0.3
   12218             :  */
   12219             : 
   12220           2 : OGRErr OSRAddGuessedTOWGS84(OGRSpatialReferenceH hSRS)
   12221             : 
   12222             : {
   12223           2 :     VALIDATE_POINTER1(hSRS, "OSRAddGuessedTOWGS84", OGRERR_FAILURE);
   12224             : 
   12225           2 :     return OGRSpatialReference::FromHandle(hSRS)->AddGuessedTOWGS84();
   12226             : }
   12227             : 
   12228             : /************************************************************************/
   12229             : /*                         OSRImportFromEPSGA()                         */
   12230             : /************************************************************************/
   12231             : 
   12232             : /**
   12233             :  * \brief  Initialize SRS based on EPSG geographic, projected or vertical CRS
   12234             :  * code.
   12235             :  *
   12236             :  * This function is the same as OGRSpatialReference::importFromEPSGA().
   12237             :  */
   12238             : 
   12239           3 : OGRErr CPL_STDCALL OSRImportFromEPSGA(OGRSpatialReferenceH hSRS, int nCode)
   12240             : 
   12241             : {
   12242           3 :     VALIDATE_POINTER1(hSRS, "OSRImportFromEPSGA", OGRERR_FAILURE);
   12243             : 
   12244           3 :     return OGRSpatialReference::FromHandle(hSRS)->importFromEPSGA(nCode);
   12245             : }
   12246             : 
   12247             : /************************************************************************/
   12248             : /*                           importFromEPSG()                           */
   12249             : /************************************************************************/
   12250             : 
   12251             : /**
   12252             :  * \brief  Initialize SRS based on EPSG geographic, projected or vertical CRS
   12253             :  * code.
   12254             :  *
   12255             :  * This method will initialize the spatial reference based on the
   12256             :  * passed in EPSG CRS code found in the PROJ database.
   12257             :  *
   12258             :  * This method is the same as the C function OSRImportFromEPSG().
   12259             :  *
   12260             :  * Before GDAL 3.0.3, this method would try to attach a 3-parameter or
   12261             :  * 7-parameter Helmert transformation to WGS84 when there is one and only one
   12262             :  * such method available for the CRS. This behavior might not always be
   12263             :  * desirable, so starting with GDAL 3.0.3, this is no longer done unless
   12264             :  * the OSR_ADD_TOWGS84_ON_IMPORT_FROM_EPSG configuration option is set to YES.
   12265             :  *
   12266             :  * @param nCode a GCS or PCS code from the horizontal coordinate system table.
   12267             :  *
   12268             :  * @return OGRERR_NONE on success, or an error code on failure.
   12269             :  */
   12270             : 
   12271       39717 : OGRErr OGRSpatialReference::importFromEPSG(int nCode)
   12272             : 
   12273             : {
   12274       39717 :     return importFromEPSGA(nCode);
   12275             : }
   12276             : 
   12277             : /************************************************************************/
   12278             : /*                         OSRImportFromEPSG()                          */
   12279             : /************************************************************************/
   12280             : 
   12281             : /**
   12282             :  * \brief  Initialize SRS based on EPSG geographic, projected or vertical CRS
   12283             :  * code.
   12284             :  *
   12285             :  * This function is the same as OGRSpatialReference::importFromEPSG().
   12286             :  */
   12287             : 
   12288        1464 : OGRErr CPL_STDCALL OSRImportFromEPSG(OGRSpatialReferenceH hSRS, int nCode)
   12289             : 
   12290             : {
   12291        1464 :     VALIDATE_POINTER1(hSRS, "OSRImportFromEPSG", OGRERR_FAILURE);
   12292             : 
   12293        1464 :     return OGRSpatialReference::FromHandle(hSRS)->importFromEPSG(nCode);
   12294             : }
   12295             : 
   12296             : /************************************************************************/
   12297             : /*                        EPSGTreatsAsLatLong()                         */
   12298             : /************************************************************************/
   12299             : 
   12300             : /**
   12301             :  * \brief This method returns TRUE if this geographic coordinate
   12302             :  * system should be treated as having lat/long coordinate ordering.
   12303             :  *
   12304             :  * Currently this returns TRUE for all geographic coordinate systems
   12305             :  * with axes set defining it as lat, long (prior to GDAL 3.10, it
   12306             :  * also checked that the CRS had belonged to EPSG authority, but this check
   12307             :  * has now been removed).
   12308             :  *
   12309             :  * \note Important change of behavior since GDAL 3.0. In previous versions,
   12310             :  * geographic CRS imported with importFromEPSG() would cause this method to
   12311             :  * return FALSE on them, whereas now it returns TRUE, since importFromEPSG()
   12312             :  * is now equivalent to importFromEPSGA().
   12313             :  *
   12314             :  * FALSE will be returned for all coordinate systems that are not geographic,
   12315             :  * or whose axes ordering is not latitude, longitude.
   12316             :  *
   12317             :  * This method is the same as the C function OSREPSGTreatsAsLatLong().
   12318             :  *
   12319             :  * @return TRUE or FALSE.
   12320             :  */
   12321             : 
   12322        1100 : int OGRSpatialReference::EPSGTreatsAsLatLong() const
   12323             : 
   12324             : {
   12325        2200 :     TAKE_OPTIONAL_LOCK();
   12326             : 
   12327        1100 :     if (!IsGeographic())
   12328         759 :         return FALSE;
   12329             : 
   12330         341 :     d->demoteFromBoundCRS();
   12331             : 
   12332         341 :     bool ret = false;
   12333         341 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
   12334             :     {
   12335             :         auto horizCRS =
   12336           3 :             proj_crs_get_sub_crs(d->getPROJContext(), d->m_pj_crs, 0);
   12337           3 :         if (horizCRS)
   12338             :         {
   12339             :             auto cs =
   12340           3 :                 proj_crs_get_coordinate_system(d->getPROJContext(), horizCRS);
   12341           3 :             if (cs)
   12342             :             {
   12343           3 :                 const char *pszDirection = nullptr;
   12344           3 :                 if (proj_cs_get_axis_info(d->getPROJContext(), cs, 0, nullptr,
   12345             :                                           nullptr, &pszDirection, nullptr,
   12346           3 :                                           nullptr, nullptr, nullptr))
   12347             :                 {
   12348           3 :                     if (EQUAL(pszDirection, "north"))
   12349             :                     {
   12350           3 :                         ret = true;
   12351             :                     }
   12352             :                 }
   12353             : 
   12354           3 :                 proj_destroy(cs);
   12355             :             }
   12356             : 
   12357           3 :             proj_destroy(horizCRS);
   12358             :         }
   12359             :     }
   12360             :     else
   12361             :     {
   12362             :         auto cs =
   12363         338 :             proj_crs_get_coordinate_system(d->getPROJContext(), d->m_pj_crs);
   12364         338 :         if (cs)
   12365             :         {
   12366         338 :             const char *pszDirection = nullptr;
   12367         338 :             if (proj_cs_get_axis_info(d->getPROJContext(), cs, 0, nullptr,
   12368             :                                       nullptr, &pszDirection, nullptr, nullptr,
   12369         338 :                                       nullptr, nullptr))
   12370             :             {
   12371         338 :                 if (EQUAL(pszDirection, "north"))
   12372             :                 {
   12373         292 :                     ret = true;
   12374             :                 }
   12375             :             }
   12376             : 
   12377         338 :             proj_destroy(cs);
   12378             :         }
   12379             :     }
   12380         341 :     d->undoDemoteFromBoundCRS();
   12381             : 
   12382         341 :     return ret;
   12383             : }
   12384             : 
   12385             : /************************************************************************/
   12386             : /*                       OSREPSGTreatsAsLatLong()                       */
   12387             : /************************************************************************/
   12388             : 
   12389             : /**
   12390             :  * \brief This function returns TRUE if this geographic coordinate
   12391             :  * system should be treated as having lat/long coordinate ordering.
   12392             :  *
   12393             :  * This function is the same as OGRSpatialReference::OSREPSGTreatsAsLatLong().
   12394             :  */
   12395             : 
   12396         180 : int OSREPSGTreatsAsLatLong(OGRSpatialReferenceH hSRS)
   12397             : 
   12398             : {
   12399         180 :     VALIDATE_POINTER1(hSRS, "OSREPSGTreatsAsLatLong", OGRERR_FAILURE);
   12400             : 
   12401         180 :     return OGRSpatialReference::FromHandle(hSRS)->EPSGTreatsAsLatLong();
   12402             : }
   12403             : 
   12404             : /************************************************************************/
   12405             : /*                     EPSGTreatsAsNorthingEasting()                    */
   12406             : /************************************************************************/
   12407             : 
   12408             : /**
   12409             :  * \brief This method returns TRUE if this projected coordinate
   12410             :  * system should be treated as having northing/easting coordinate ordering.
   12411             :  *
   12412             :  * Currently this returns TRUE for all projected coordinate systems
   12413             :  * with axes set defining it as northing, easting (prior to GDAL 3.10, it
   12414             :  * also checked that the CRS had belonged to EPSG authority, but this check
   12415             :  * has now been removed).
   12416             :  *
   12417             :  * \note Important change of behavior since GDAL 3.0. In previous versions,
   12418             :  * projected CRS with northing, easting axis order imported with
   12419             :  * importFromEPSG() would cause this method to
   12420             :  * return FALSE on them, whereas now it returns TRUE, since importFromEPSG()
   12421             :  * is now equivalent to importFromEPSGA().
   12422             :  *
   12423             :  * FALSE will be returned for all coordinate systems that are not projected,
   12424             :  * or whose axes ordering is not northing, easting.
   12425             :  *
   12426             :  * This method is the same as the C function EPSGTreatsAsNorthingEasting().
   12427             :  *
   12428             :  * @return TRUE or FALSE.
   12429             :  *
   12430             :  */
   12431             : 
   12432         845 : int OGRSpatialReference::EPSGTreatsAsNorthingEasting() const
   12433             : 
   12434             : {
   12435        1690 :     TAKE_OPTIONAL_LOCK();
   12436             : 
   12437         845 :     if (!IsProjected())
   12438          48 :         return FALSE;
   12439             : 
   12440         797 :     d->demoteFromBoundCRS();
   12441             :     PJ *projCRS;
   12442         797 :     const auto ctxt = d->getPROJContext();
   12443         797 :     if (d->m_pjType == PJ_TYPE_COMPOUND_CRS)
   12444             :     {
   12445           4 :         projCRS = proj_crs_get_sub_crs(ctxt, d->m_pj_crs, 0);
   12446           4 :         if (!projCRS || proj_get_type(projCRS) != PJ_TYPE_PROJECTED_CRS)
   12447             :         {
   12448           0 :             d->undoDemoteFromBoundCRS();
   12449           0 :             proj_destroy(projCRS);
   12450           0 :             return FALSE;
   12451             :         }
   12452             :     }
   12453             :     else
   12454             :     {
   12455         793 :         projCRS = proj_clone(ctxt, d->m_pj_crs);
   12456             :     }
   12457             : 
   12458         797 :     bool ret = false;
   12459         797 :     auto cs = proj_crs_get_coordinate_system(ctxt, projCRS);
   12460         797 :     proj_destroy(projCRS);
   12461         797 :     d->undoDemoteFromBoundCRS();
   12462             : 
   12463         797 :     if (cs)
   12464             :     {
   12465         797 :         ret = isNorthEastAxisOrder(ctxt, cs);
   12466         797 :         proj_destroy(cs);
   12467             :     }
   12468             : 
   12469         797 :     return ret;
   12470             : }
   12471             : 
   12472             : /************************************************************************/
   12473             : /*                     OSREPSGTreatsAsNorthingEasting()                 */
   12474             : /************************************************************************/
   12475             : 
   12476             : /**
   12477             :  * \brief This function returns TRUE if this projected coordinate
   12478             :  * system should be treated as having northing/easting coordinate ordering.
   12479             :  *
   12480             :  * This function is the same as
   12481             :  * OGRSpatialReference::EPSGTreatsAsNorthingEasting().
   12482             :  *
   12483             :  */
   12484             : 
   12485         187 : int OSREPSGTreatsAsNorthingEasting(OGRSpatialReferenceH hSRS)
   12486             : 
   12487             : {
   12488         187 :     VALIDATE_POINTER1(hSRS, "OSREPSGTreatsAsNorthingEasting", OGRERR_FAILURE);
   12489             : 
   12490         187 :     return OGRSpatialReference::FromHandle(hSRS)->EPSGTreatsAsNorthingEasting();
   12491             : }
   12492             : 
   12493             : /************************************************************************/
   12494             : /*                     ImportFromESRIWisconsinWKT()                     */
   12495             : /*                                                                      */
   12496             : /*      Search a ESRI State Plane WKT and import it.                    */
   12497             : /************************************************************************/
   12498             : 
   12499             : // This is only used by the HFA driver and somewhat dubious we really need that
   12500             : // Coming from an old ESRI merge
   12501             : 
   12502           1 : OGRErr OGRSpatialReference::ImportFromESRIWisconsinWKT(const char *prjName,
   12503             :                                                        double centralMeridian,
   12504             :                                                        double latOfOrigin,
   12505             :                                                        const char *unitsName,
   12506             :                                                        const char *crsName)
   12507             : {
   12508           2 :     TAKE_OPTIONAL_LOCK();
   12509             : 
   12510           1 :     if (centralMeridian < -93 || centralMeridian > -87)
   12511           0 :         return OGRERR_FAILURE;
   12512           1 :     if (latOfOrigin < 40 || latOfOrigin > 47)
   12513           0 :         return OGRERR_FAILURE;
   12514             : 
   12515             :     // If the CS name is known.
   12516           1 :     if (!prjName && !unitsName && crsName)
   12517             :     {
   12518           0 :         const PJ_TYPE type = PJ_TYPE_PROJECTED_CRS;
   12519           0 :         PJ_OBJ_LIST *list = proj_create_from_name(
   12520             :             d->getPROJContext(), "ESRI", crsName, &type, 1, false, 1, nullptr);
   12521           0 :         if (list)
   12522             :         {
   12523           0 :             if (proj_list_get_count(list) == 1)
   12524             :             {
   12525           0 :                 auto crs = proj_list_get(d->getPROJContext(), list, 0);
   12526           0 :                 if (crs)
   12527             :                 {
   12528           0 :                     Clear();
   12529           0 :                     d->setPjCRS(crs);
   12530           0 :                     proj_list_destroy(list);
   12531           0 :                     return OGRERR_NONE;
   12532             :                 }
   12533             :             }
   12534           0 :             proj_list_destroy(list);
   12535             :         }
   12536           0 :         return OGRERR_FAILURE;
   12537             :     }
   12538             : 
   12539           1 :     if (prjName == nullptr || unitsName == nullptr)
   12540             :     {
   12541           0 :         return OGRERR_FAILURE;
   12542             :     }
   12543             : 
   12544           1 :     const PJ_TYPE type = PJ_TYPE_PROJECTED_CRS;
   12545           1 :     PJ_OBJ_LIST *list = proj_create_from_name(d->getPROJContext(), "ESRI",
   12546             :                                               "NAD_1983_HARN_WISCRS_", &type, 1,
   12547             :                                               true, 0, nullptr);
   12548           1 :     if (list)
   12549             :     {
   12550           1 :         const auto listSize = proj_list_get_count(list);
   12551           8 :         for (int i = 0; i < listSize; i++)
   12552             :         {
   12553           8 :             auto crs = proj_list_get(d->getPROJContext(), list, i);
   12554           8 :             if (!crs)
   12555             :             {
   12556           7 :                 continue;
   12557             :             }
   12558             : 
   12559           8 :             auto conv = proj_crs_get_coordoperation(d->getPROJContext(), crs);
   12560           8 :             if (!conv)
   12561             :             {
   12562           0 :                 proj_destroy(crs);
   12563           0 :                 continue;
   12564             :             }
   12565           8 :             const char *pszMethodCode = nullptr;
   12566           8 :             proj_coordoperation_get_method_info(
   12567             :                 d->getPROJContext(), conv, nullptr, nullptr, &pszMethodCode);
   12568           8 :             const int nMethodCode = atoi(pszMethodCode ? pszMethodCode : "0");
   12569           8 :             if (!((EQUAL(prjName, SRS_PT_TRANSVERSE_MERCATOR) &&
   12570             :                    nMethodCode == EPSG_CODE_METHOD_TRANSVERSE_MERCATOR) ||
   12571           3 :                   (EQUAL(prjName, "Lambert_Conformal_Conic") &&
   12572             :                    nMethodCode ==
   12573             :                        EPSG_CODE_METHOD_LAMBERT_CONIC_CONFORMAL_1SP)))
   12574             :             {
   12575           3 :                 proj_destroy(crs);
   12576           3 :                 proj_destroy(conv);
   12577           3 :                 continue;
   12578             :             }
   12579             : 
   12580             :             auto coordSys =
   12581           5 :                 proj_crs_get_coordinate_system(d->getPROJContext(), crs);
   12582           5 :             if (!coordSys)
   12583             :             {
   12584           0 :                 proj_destroy(crs);
   12585           0 :                 proj_destroy(conv);
   12586           0 :                 continue;
   12587             :             }
   12588             : 
   12589           5 :             double dfConvFactor = 0.0;
   12590           5 :             proj_cs_get_axis_info(d->getPROJContext(), coordSys, 0, nullptr,
   12591             :                                   nullptr, nullptr, &dfConvFactor, nullptr,
   12592             :                                   nullptr, nullptr);
   12593           5 :             proj_destroy(coordSys);
   12594             : 
   12595           6 :             if ((EQUAL(unitsName, "meters") && dfConvFactor != 1.0) ||
   12596           1 :                 (!EQUAL(unitsName, "meters") &&
   12597           0 :                  std::fabs(dfConvFactor - CPLAtof(SRS_UL_US_FOOT_CONV)) >
   12598             :                      1e-10))
   12599             :             {
   12600           4 :                 proj_destroy(crs);
   12601           4 :                 proj_destroy(conv);
   12602           4 :                 continue;
   12603             :             }
   12604             : 
   12605           1 :             int idx_lat = proj_coordoperation_get_param_index(
   12606             :                 d->getPROJContext(), conv,
   12607             :                 EPSG_NAME_PARAMETER_LATITUDE_OF_NATURAL_ORIGIN);
   12608           1 :             double valueLat = -1000;
   12609           1 :             proj_coordoperation_get_param(d->getPROJContext(), conv, idx_lat,
   12610             :                                           nullptr, nullptr, nullptr, &valueLat,
   12611             :                                           nullptr, nullptr, nullptr, nullptr,
   12612             :                                           nullptr, nullptr);
   12613           1 :             int idx_lon = proj_coordoperation_get_param_index(
   12614             :                 d->getPROJContext(), conv,
   12615             :                 EPSG_NAME_PARAMETER_LONGITUDE_OF_NATURAL_ORIGIN);
   12616           1 :             double valueLong = -1000;
   12617           1 :             proj_coordoperation_get_param(d->getPROJContext(), conv, idx_lon,
   12618             :                                           nullptr, nullptr, nullptr, &valueLong,
   12619             :                                           nullptr, nullptr, nullptr, nullptr,
   12620             :                                           nullptr, nullptr);
   12621           1 :             if (std::fabs(centralMeridian - valueLong) <= 1e-10 &&
   12622           1 :                 std::fabs(latOfOrigin - valueLat) <= 1e-10)
   12623             :             {
   12624           1 :                 Clear();
   12625           1 :                 d->setPjCRS(crs);
   12626           1 :                 proj_list_destroy(list);
   12627           1 :                 proj_destroy(conv);
   12628           1 :                 return OGRERR_NONE;
   12629             :             }
   12630             : 
   12631           0 :             proj_destroy(crs);
   12632           0 :             proj_destroy(conv);
   12633             :         }
   12634           0 :         proj_list_destroy(list);
   12635             :     }
   12636             : 
   12637           0 :     return OGRERR_FAILURE;
   12638             : }
   12639             : 
   12640             : /************************************************************************/
   12641             : /*                      GetAxisMappingStrategy()                        */
   12642             : /************************************************************************/
   12643             : 
   12644             : /** \brief Return the data axis to CRS axis mapping strategy.
   12645             :  *
   12646             :  * <ul>
   12647             :  * <li>OAMS_TRADITIONAL_GIS_ORDER means that for geographic CRS with
   12648             :  *     lat/long order, the data will still be long/lat ordered. Similarly for
   12649             :  *     a projected CRS with northing/easting order, the data will still be
   12650             :  *     easting/northing ordered.
   12651             :  * <li>OAMS_AUTHORITY_COMPLIANT means that the data axis will be identical to
   12652             :  *     the CRS axis.
   12653             :  * <li>OAMS_CUSTOM means that the data axis are customly defined with
   12654             :  *     SetDataAxisToSRSAxisMapping()
   12655             :  * </ul>
   12656             :  * @return the data axis to CRS axis mapping strategy.
   12657             :  * @since GDAL 3.0
   12658             :  */
   12659          92 : OSRAxisMappingStrategy OGRSpatialReference::GetAxisMappingStrategy() const
   12660             : {
   12661          92 :     TAKE_OPTIONAL_LOCK();
   12662             : 
   12663         184 :     return d->m_axisMappingStrategy;
   12664             : }
   12665             : 
   12666             : /************************************************************************/
   12667             : /*                      OSRGetAxisMappingStrategy()                     */
   12668             : /************************************************************************/
   12669             : 
   12670             : /** \brief Return the data axis to CRS axis mapping strategy.
   12671             :  *
   12672             :  * See OGRSpatialReference::GetAxisMappingStrategy()
   12673             :  * @since GDAL 3.0
   12674             :  */
   12675          37 : OSRAxisMappingStrategy OSRGetAxisMappingStrategy(OGRSpatialReferenceH hSRS)
   12676             : {
   12677          37 :     VALIDATE_POINTER1(hSRS, "OSRGetAxisMappingStrategy", OAMS_CUSTOM);
   12678             : 
   12679          37 :     return OGRSpatialReference::FromHandle(hSRS)->GetAxisMappingStrategy();
   12680             : }
   12681             : 
   12682             : /************************************************************************/
   12683             : /*                      SetAxisMappingStrategy()                        */
   12684             : /************************************************************************/
   12685             : 
   12686             : /** \brief Set the data axis to CRS axis mapping strategy.
   12687             :  *
   12688             :  * Starting with GDAL 3.5, the OSR_DEFAULT_AXIS_MAPPING_STRATEGY configuration
   12689             :  * option can be set to "TRADITIONAL_GIS_ORDER" / "AUTHORITY_COMPLIANT" (the
   12690             :  * later being the default value when the option is not set) to control the
   12691             :  * value of the data axis to CRS axis mapping strategy when a
   12692             :  * OSRSpatialReference object is created. Calling SetAxisMappingStrategy() will
   12693             :  * override this default value.
   12694             :  *
   12695             :  * See OGRSpatialReference::GetAxisMappingStrategy()
   12696             :  * @since GDAL 3.0
   12697             :  */
   12698       87684 : void OGRSpatialReference::SetAxisMappingStrategy(
   12699             :     OSRAxisMappingStrategy strategy)
   12700             : {
   12701      175368 :     TAKE_OPTIONAL_LOCK();
   12702             : 
   12703       87684 :     d->m_axisMappingStrategy = strategy;
   12704       87684 :     d->refreshAxisMapping();
   12705       87684 : }
   12706             : 
   12707             : /************************************************************************/
   12708             : /*                      OSRSetAxisMappingStrategy()                     */
   12709             : /************************************************************************/
   12710             : 
   12711             : /** \brief Set the data axis to CRS axis mapping strategy.
   12712             :  *
   12713             :  * See OGRSpatialReference::SetAxisMappingStrategy()
   12714             :  * @since GDAL 3.0
   12715             :  */
   12716         868 : void OSRSetAxisMappingStrategy(OGRSpatialReferenceH hSRS,
   12717             :                                OSRAxisMappingStrategy strategy)
   12718             : {
   12719         868 :     VALIDATE_POINTER0(hSRS, "OSRSetAxisMappingStrategy");
   12720             : 
   12721         868 :     OGRSpatialReference::FromHandle(hSRS)->SetAxisMappingStrategy(strategy);
   12722             : }
   12723             : 
   12724             : /************************************************************************/
   12725             : /*                      GetDataAxisToSRSAxisMapping()                   */
   12726             : /************************************************************************/
   12727             : 
   12728             : /** \brief Return the data axis to SRS axis mapping.
   12729             :  *
   12730             :  * The number of elements of the vector will be the number of axis of the CRS.
   12731             :  * Values start at 1.
   12732             :  *
   12733             :  * If m = GetDataAxisToSRSAxisMapping(), then m[0] is the data axis number
   12734             :  * for the first axis of the CRS.
   12735             :  *
   12736             :  * @since GDAL 3.0
   12737             :  */
   12738     4257990 : const std::vector<int> &OGRSpatialReference::GetDataAxisToSRSAxisMapping() const
   12739             : {
   12740     4257990 :     TAKE_OPTIONAL_LOCK();
   12741             : 
   12742     8515980 :     return d->m_axisMapping;
   12743             : }
   12744             : 
   12745             : /************************************************************************/
   12746             : /*                     OSRGetDataAxisToSRSAxisMapping()                 */
   12747             : /************************************************************************/
   12748             : 
   12749             : /** \brief Return the data axis to SRS axis mapping.
   12750             :  *
   12751             :  * See OGRSpatialReference::GetDataAxisToSRSAxisMapping()
   12752             :  *
   12753             :  * @since GDAL 3.0
   12754             :  */
   12755         229 : const int *OSRGetDataAxisToSRSAxisMapping(OGRSpatialReferenceH hSRS,
   12756             :                                           int *pnCount)
   12757             : {
   12758         229 :     VALIDATE_POINTER1(hSRS, "OSRGetDataAxisToSRSAxisMapping", nullptr);
   12759         229 :     VALIDATE_POINTER1(pnCount, "OSRGetDataAxisToSRSAxisMapping", nullptr);
   12760             : 
   12761             :     const auto &v =
   12762         229 :         OGRSpatialReference::FromHandle(hSRS)->GetDataAxisToSRSAxisMapping();
   12763         229 :     *pnCount = static_cast<int>(v.size());
   12764         229 :     return v.data();
   12765             : }
   12766             : 
   12767             : /************************************************************************/
   12768             : /*                      SetDataAxisToSRSAxisMapping()                   */
   12769             : /************************************************************************/
   12770             : 
   12771             : /** \brief Set a custom data axis to CRS axis mapping.
   12772             :  *
   12773             :  * The number of elements of the mapping vector should be the number of axis
   12774             :  * of the CRS (as returned by GetAxesCount()) (although this method does not
   12775             :  * check that, beyond checking there are at least 2 elements, so that this
   12776             :  * method and setting the CRS can be done in any order).
   12777             :  * This is taken into account by OGRCoordinateTransformation to transform the
   12778             :  * order of coordinates to the order expected by the CRS before
   12779             :  * transformation, and back to the data order after transformation.
   12780             :  *
   12781             :  * The mapping[i] value (one based) represents the data axis number for the i(th)
   12782             :  * axis of the CRS. A negative value can also be used to ask for a sign
   12783             :  * reversal during coordinate transformation (to deal with northing vs southing,
   12784             :  * easting vs westing, heights vs depths).
   12785             :  *
   12786             :  * When used with OGRCoordinateTransformation,
   12787             :  * - the only valid values for mapping[0] (data axis number for the first axis
   12788             :  *   of the CRS) are 1, 2, -1, -2.
   12789             :  * - the only valid values for mapping[1] (data axis number for the second axis
   12790             :  *   of the CRS) are 1, 2, -1, -2.
   12791             :  *  - the only valid values mapping[2] are 3 or -3.
   12792             :  * Note: this method does not validate the values of mapping[].
   12793             :  *
   12794             :  * mapping=[2,1] typically expresses the inversion of axis between the data
   12795             :  * axis and the CRS axis for a 2D CRS.
   12796             :  *
   12797             :  * Automatically implies SetAxisMappingStrategy(OAMS_CUSTOM)
   12798             :  *
   12799             :  * This is the same as the C function OSRSetDataAxisToSRSAxisMapping().
   12800             :  *
   12801             :  * @param mapping The new data axis to CRS axis mapping.
   12802             :  *
   12803             :  * @since GDAL 3.0
   12804             :  * @see OGRSpatialReference::GetDataAxisToSRSAxisMapping()
   12805             :  */
   12806        8933 : OGRErr OGRSpatialReference::SetDataAxisToSRSAxisMapping(
   12807             :     const std::vector<int> &mapping)
   12808             : {
   12809       17866 :     TAKE_OPTIONAL_LOCK();
   12810             : 
   12811        8933 :     if (mapping.size() < 2)
   12812           0 :         return OGRERR_FAILURE;
   12813        8933 :     d->m_axisMappingStrategy = OAMS_CUSTOM;
   12814        8933 :     d->m_axisMapping = mapping;
   12815        8933 :     return OGRERR_NONE;
   12816             : }
   12817             : 
   12818             : /************************************************************************/
   12819             : /*                     OSRSetDataAxisToSRSAxisMapping()                 */
   12820             : /************************************************************************/
   12821             : 
   12822             : /** \brief Set a custom data axis to CRS axis mapping.
   12823             :  *
   12824             :  * Automatically implies SetAxisMappingStrategy(OAMS_CUSTOM)
   12825             :  *
   12826             :  * This is the same as the C++ method
   12827             :  * OGRSpatialReference::SetDataAxisToSRSAxisMapping()
   12828             :  *
   12829             :  * @since GDAL 3.1
   12830             :  */
   12831          15 : OGRErr OSRSetDataAxisToSRSAxisMapping(OGRSpatialReferenceH hSRS,
   12832             :                                       int nMappingSize, const int *panMapping)
   12833             : {
   12834          15 :     VALIDATE_POINTER1(hSRS, "OSRSetDataAxisToSRSAxisMapping", OGRERR_FAILURE);
   12835          15 :     VALIDATE_POINTER1(panMapping, "OSRSetDataAxisToSRSAxisMapping",
   12836             :                       OGRERR_FAILURE);
   12837             : 
   12838          15 :     if (nMappingSize < 0)
   12839           0 :         return OGRERR_FAILURE;
   12840             : 
   12841          30 :     std::vector<int> mapping(nMappingSize);
   12842          15 :     if (nMappingSize)
   12843          15 :         memcpy(&mapping[0], panMapping, nMappingSize * sizeof(int));
   12844          15 :     return OGRSpatialReference::FromHandle(hSRS)->SetDataAxisToSRSAxisMapping(
   12845          15 :         mapping);
   12846             : }
   12847             : 
   12848             : /************************************************************************/
   12849             : /*                               GetAreaOfUse()                         */
   12850             : /************************************************************************/
   12851             : 
   12852             : /** \brief Return the area of use of the CRS.
   12853             :  *
   12854             :  * This method is the same as the OSRGetAreaOfUse() function.
   12855             :  *
   12856             :  * @param pdfWestLongitudeDeg Pointer to a double to receive the western-most
   12857             :  * longitude, expressed in degree. Might be NULL. If the returned value is
   12858             :  * -1000, the bounding box is unknown.
   12859             :  * @param pdfSouthLatitudeDeg Pointer to a double to receive the southern-most
   12860             :  * latitude, expressed in degree. Might be NULL. If the returned value is -1000,
   12861             :  * the bounding box is unknown.
   12862             :  * @param pdfEastLongitudeDeg Pointer to a double to receive the eastern-most
   12863             :  * longitude, expressed in degree. Might be NULL. If the returned value is
   12864             :  * -1000, the bounding box is unknown.
   12865             :  * @param pdfNorthLatitudeDeg Pointer to a double to receive the northern-most
   12866             :  * latitude, expressed in degree. Might be NULL. If the returned value is -1000,
   12867             :  * the bounding box is unknown.
   12868             :  * @param ppszAreaName Pointer to a string to receive the name of the area of
   12869             :  * use. Might be NULL. Note that *ppszAreaName is short-lived and might be
   12870             :  * invalidated by further calls.
   12871             :  * @return true in case of success
   12872             :  * @since GDAL 3.0
   12873             :  */
   12874          52 : bool OGRSpatialReference::GetAreaOfUse(double *pdfWestLongitudeDeg,
   12875             :                                        double *pdfSouthLatitudeDeg,
   12876             :                                        double *pdfEastLongitudeDeg,
   12877             :                                        double *pdfNorthLatitudeDeg,
   12878             :                                        const char **ppszAreaName) const
   12879             : {
   12880         104 :     TAKE_OPTIONAL_LOCK();
   12881             : 
   12882          52 :     d->refreshProjObj();
   12883          52 :     if (!d->m_pj_crs)
   12884             :     {
   12885           0 :         return false;
   12886             :     }
   12887          52 :     d->demoteFromBoundCRS();
   12888          52 :     const char *pszAreaName = nullptr;
   12889          52 :     int bSuccess = proj_get_area_of_use(
   12890          52 :         d->getPROJContext(), d->m_pj_crs, pdfWestLongitudeDeg,
   12891             :         pdfSouthLatitudeDeg, pdfEastLongitudeDeg, pdfNorthLatitudeDeg,
   12892             :         &pszAreaName);
   12893          52 :     d->undoDemoteFromBoundCRS();
   12894          52 :     d->m_osAreaName = pszAreaName ? pszAreaName : "";
   12895          52 :     if (ppszAreaName)
   12896           1 :         *ppszAreaName = d->m_osAreaName.c_str();
   12897          52 :     return CPL_TO_BOOL(bSuccess);
   12898             : }
   12899             : 
   12900             : /************************************************************************/
   12901             : /*                               GetAreaOfUse()                         */
   12902             : /************************************************************************/
   12903             : 
   12904             : /** \brief Return the area of use of the CRS.
   12905             :  *
   12906             :  * This function is the same as the OGRSpatialReference::GetAreaOfUse() method.
   12907             :  *
   12908             :  * @since GDAL 3.0
   12909             :  */
   12910           1 : int OSRGetAreaOfUse(OGRSpatialReferenceH hSRS, double *pdfWestLongitudeDeg,
   12911             :                     double *pdfSouthLatitudeDeg, double *pdfEastLongitudeDeg,
   12912             :                     double *pdfNorthLatitudeDeg, const char **ppszAreaName)
   12913             : {
   12914           1 :     VALIDATE_POINTER1(hSRS, "OSRGetAreaOfUse", FALSE);
   12915             : 
   12916           1 :     return OGRSpatialReference::FromHandle(hSRS)->GetAreaOfUse(
   12917             :         pdfWestLongitudeDeg, pdfSouthLatitudeDeg, pdfEastLongitudeDeg,
   12918           1 :         pdfNorthLatitudeDeg, ppszAreaName);
   12919             : }
   12920             : 
   12921             : /************************************************************************/
   12922             : /*                     OSRGetCRSInfoListFromDatabase()                  */
   12923             : /************************************************************************/
   12924             : 
   12925             : /** \brief Enumerate CRS objects from the database.
   12926             :  *
   12927             :  * The returned object is an array of OSRCRSInfo* pointers, whose last
   12928             :  * entry is NULL. This array should be freed with OSRDestroyCRSInfoList()
   12929             :  *
   12930             :  * @param pszAuthName Authority name, used to restrict the search.
   12931             :  * Or NULL for all authorities.
   12932             :  * @param params Additional criteria. Must be set to NULL for now.
   12933             :  * @param pnOutResultCount Output parameter pointing to an integer to receive
   12934             :  * the size of the result list. Might be NULL
   12935             :  * @return an array of OSRCRSInfo* pointers to be freed with
   12936             :  * OSRDestroyCRSInfoList(), or NULL in case of error.
   12937             :  *
   12938             :  * @since GDAL 3.0
   12939             :  */
   12940             : OSRCRSInfo **
   12941          24 : OSRGetCRSInfoListFromDatabase(const char *pszAuthName,
   12942             :                               CPL_UNUSED const OSRCRSListParameters *params,
   12943             :                               int *pnOutResultCount)
   12944             : {
   12945          24 :     int nResultCount = 0;
   12946          24 :     auto projList = proj_get_crs_info_list_from_database(
   12947             :         OSRGetProjTLSContext(), pszAuthName, nullptr, &nResultCount);
   12948          24 :     if (pnOutResultCount)
   12949          24 :         *pnOutResultCount = nResultCount;
   12950          24 :     if (!projList)
   12951             :     {
   12952           0 :         return nullptr;
   12953             :     }
   12954          24 :     auto res = new OSRCRSInfo *[nResultCount + 1];
   12955       89181 :     for (int i = 0; i < nResultCount; i++)
   12956             :     {
   12957       89157 :         res[i] = new OSRCRSInfo;
   12958      178314 :         res[i]->pszAuthName = projList[i]->auth_name
   12959       89157 :                                   ? CPLStrdup(projList[i]->auth_name)
   12960             :                                   : nullptr;
   12961       89157 :         res[i]->pszCode =
   12962       89157 :             projList[i]->code ? CPLStrdup(projList[i]->code) : nullptr;
   12963       89157 :         res[i]->pszName =
   12964       89157 :             projList[i]->name ? CPLStrdup(projList[i]->name) : nullptr;
   12965       89157 :         res[i]->eType = OSR_CRS_TYPE_OTHER;
   12966       89157 :         switch (projList[i]->type)
   12967             :         {
   12968        8727 :             case PJ_TYPE_GEOGRAPHIC_2D_CRS:
   12969        8727 :                 res[i]->eType = OSR_CRS_TYPE_GEOGRAPHIC_2D;
   12970        8727 :                 break;
   12971        2811 :             case PJ_TYPE_GEOGRAPHIC_3D_CRS:
   12972        2811 :                 res[i]->eType = OSR_CRS_TYPE_GEOGRAPHIC_3D;
   12973        2811 :                 break;
   12974        3066 :             case PJ_TYPE_GEOCENTRIC_CRS:
   12975        3066 :                 res[i]->eType = OSR_CRS_TYPE_GEOCENTRIC;
   12976        3066 :                 break;
   12977       67740 :             case PJ_TYPE_PROJECTED_CRS:
   12978       67740 :                 res[i]->eType = OSR_CRS_TYPE_PROJECTED;
   12979       67740 :                 break;
   12980        2808 :             case PJ_TYPE_VERTICAL_CRS:
   12981        2808 :                 res[i]->eType = OSR_CRS_TYPE_VERTICAL;
   12982        2808 :                 break;
   12983        4005 :             case PJ_TYPE_COMPOUND_CRS:
   12984        4005 :                 res[i]->eType = OSR_CRS_TYPE_COMPOUND;
   12985        4005 :                 break;
   12986           0 :             default:
   12987           0 :                 break;
   12988             :         }
   12989       89157 :         res[i]->bDeprecated = projList[i]->deprecated;
   12990       89157 :         res[i]->bBboxValid = projList[i]->bbox_valid;
   12991       89157 :         res[i]->dfWestLongitudeDeg = projList[i]->west_lon_degree;
   12992       89157 :         res[i]->dfSouthLatitudeDeg = projList[i]->south_lat_degree;
   12993       89157 :         res[i]->dfEastLongitudeDeg = projList[i]->east_lon_degree;
   12994       89157 :         res[i]->dfNorthLatitudeDeg = projList[i]->north_lat_degree;
   12995      178314 :         res[i]->pszAreaName = projList[i]->area_name
   12996       89157 :                                   ? CPLStrdup(projList[i]->area_name)
   12997             :                                   : nullptr;
   12998       89157 :         res[i]->pszProjectionMethod =
   12999       89157 :             projList[i]->projection_method_name
   13000       89157 :                 ? CPLStrdup(projList[i]->projection_method_name)
   13001             :                 : nullptr;
   13002             : #if PROJ_AT_LEAST_VERSION(8, 1, 0)
   13003             :         res[i]->pszCelestialBodyName =
   13004             :             projList[i]->celestial_body_name
   13005             :                 ? CPLStrdup(projList[i]->celestial_body_name)
   13006             :                 : nullptr;
   13007             : #else
   13008       89157 :         res[i]->pszCelestialBodyName =
   13009       89157 :             res[i]->pszAuthName && EQUAL(res[i]->pszAuthName, "EPSG")
   13010      178314 :                 ? CPLStrdup("Earth")
   13011             :                 : nullptr;
   13012             : #endif
   13013             :     }
   13014          24 :     res[nResultCount] = nullptr;
   13015          24 :     proj_crs_info_list_destroy(projList);
   13016          24 :     return res;
   13017             : }
   13018             : 
   13019             : /************************************************************************/
   13020             : /*                        OSRDestroyCRSInfoList()                       */
   13021             : /************************************************************************/
   13022             : 
   13023             : /** \brief Destroy the result returned by
   13024             :  * OSRGetCRSInfoListFromDatabase().
   13025             :  *
   13026             :  * @since GDAL 3.0
   13027             :  */
   13028          24 : void OSRDestroyCRSInfoList(OSRCRSInfo **list)
   13029             : {
   13030          24 :     if (list)
   13031             :     {
   13032       89181 :         for (int i = 0; list[i] != nullptr; i++)
   13033             :         {
   13034       89157 :             CPLFree(list[i]->pszAuthName);
   13035       89157 :             CPLFree(list[i]->pszCode);
   13036       89157 :             CPLFree(list[i]->pszName);
   13037       89157 :             CPLFree(list[i]->pszAreaName);
   13038       89157 :             CPLFree(list[i]->pszProjectionMethod);
   13039       89157 :             CPLFree(list[i]->pszCelestialBodyName);
   13040       89157 :             delete list[i];
   13041             :         }
   13042          24 :         delete[] list;
   13043             :     }
   13044          24 : }
   13045             : 
   13046             : /************************************************************************/
   13047             : /*                   OSRGetAuthorityListFromDatabase()                  */
   13048             : /************************************************************************/
   13049             : 
   13050             : /** \brief Return the list of CRS authorities used in the PROJ database.
   13051             :  *
   13052             :  * Such as "EPSG", "ESRI", "PROJ", "IGNF", "IAU_2015", etc.
   13053             :  *
   13054             :  * This is a direct mapping of https://proj.org/en/latest/development/reference/functions.html#c.proj_get_authorities_from_database
   13055             :  *
   13056             :  * @return nullptr in case of error, or a NULL terminated list of strings to
   13057             :  * free with CSLDestroy()
   13058             :  * @since GDAL 3.10
   13059             :  */
   13060           4 : char **OSRGetAuthorityListFromDatabase()
   13061             : {
   13062             :     PROJ_STRING_LIST list =
   13063           4 :         proj_get_authorities_from_database(OSRGetProjTLSContext());
   13064           4 :     if (!list)
   13065             :     {
   13066           0 :         return nullptr;
   13067             :     }
   13068           4 :     int count = 0;
   13069          24 :     while (list[count])
   13070          20 :         ++count;
   13071           4 :     char **res = static_cast<char **>(CPLCalloc(count + 1, sizeof(char *)));
   13072          24 :     for (int i = 0; i < count; ++i)
   13073          20 :         res[i] = CPLStrdup(list[i]);
   13074           4 :     proj_string_list_destroy(list);
   13075           4 :     return res;
   13076             : }
   13077             : 
   13078             : /************************************************************************/
   13079             : /*                    UpdateCoordinateSystemFromGeogCRS()               */
   13080             : /************************************************************************/
   13081             : 
   13082             : /*! @cond Doxygen_Suppress */
   13083             : /** \brief Used by gt_wkt_srs.cpp to create projected 3D CRS. Internal use only
   13084             :  *
   13085             :  * @since GDAL 3.1
   13086             :  */
   13087           1 : void OGRSpatialReference::UpdateCoordinateSystemFromGeogCRS()
   13088             : {
   13089           1 :     TAKE_OPTIONAL_LOCK();
   13090             : 
   13091           1 :     d->refreshProjObj();
   13092           1 :     if (!d->m_pj_crs)
   13093           0 :         return;
   13094           1 :     if (d->m_pjType != PJ_TYPE_PROJECTED_CRS)
   13095           0 :         return;
   13096           1 :     if (GetAxesCount() == 3)
   13097           0 :         return;
   13098           1 :     auto ctxt = d->getPROJContext();
   13099           1 :     auto baseCRS = proj_crs_get_geodetic_crs(ctxt, d->m_pj_crs);
   13100           1 :     if (!baseCRS)
   13101           0 :         return;
   13102           1 :     auto baseCRSCS = proj_crs_get_coordinate_system(ctxt, baseCRS);
   13103           1 :     if (!baseCRSCS)
   13104             :     {
   13105           0 :         proj_destroy(baseCRS);
   13106           0 :         return;
   13107             :     }
   13108           1 :     if (proj_cs_get_axis_count(ctxt, baseCRSCS) != 3)
   13109             :     {
   13110           0 :         proj_destroy(baseCRSCS);
   13111           0 :         proj_destroy(baseCRS);
   13112           0 :         return;
   13113             :     }
   13114           1 :     auto projCS = proj_crs_get_coordinate_system(ctxt, d->m_pj_crs);
   13115           1 :     if (!projCS || proj_cs_get_axis_count(ctxt, projCS) != 2)
   13116             :     {
   13117           0 :         proj_destroy(baseCRSCS);
   13118           0 :         proj_destroy(baseCRS);
   13119           0 :         proj_destroy(projCS);
   13120           0 :         return;
   13121             :     }
   13122             : 
   13123             :     PJ_AXIS_DESCRIPTION axis[3];
   13124           4 :     for (int i = 0; i < 3; i++)
   13125             :     {
   13126           3 :         const char *name = nullptr;
   13127           3 :         const char *abbreviation = nullptr;
   13128           3 :         const char *direction = nullptr;
   13129           3 :         double unit_conv_factor = 0;
   13130           3 :         const char *unit_name = nullptr;
   13131           3 :         proj_cs_get_axis_info(ctxt, i < 2 ? projCS : baseCRSCS, i, &name,
   13132             :                               &abbreviation, &direction, &unit_conv_factor,
   13133             :                               &unit_name, nullptr, nullptr);
   13134           3 :         axis[i].name = CPLStrdup(name);
   13135           3 :         axis[i].abbreviation = CPLStrdup(abbreviation);
   13136           3 :         axis[i].direction = CPLStrdup(direction);
   13137           3 :         axis[i].unit_name = CPLStrdup(unit_name);
   13138           3 :         axis[i].unit_conv_factor = unit_conv_factor;
   13139           3 :         axis[i].unit_type = PJ_UT_LINEAR;
   13140             :     }
   13141           1 :     proj_destroy(baseCRSCS);
   13142           1 :     proj_destroy(projCS);
   13143           1 :     auto cs = proj_create_cs(ctxt, PJ_CS_TYPE_CARTESIAN, 3, axis);
   13144           4 :     for (int i = 0; i < 3; i++)
   13145             :     {
   13146           3 :         CPLFree(axis[i].name);
   13147           3 :         CPLFree(axis[i].abbreviation);
   13148           3 :         CPLFree(axis[i].direction);
   13149           3 :         CPLFree(axis[i].unit_name);
   13150             :     }
   13151           1 :     if (!cs)
   13152             :     {
   13153           0 :         proj_destroy(baseCRS);
   13154           0 :         return;
   13155             :     }
   13156           1 :     auto conversion = proj_crs_get_coordoperation(ctxt, d->m_pj_crs);
   13157           1 :     auto crs = proj_create_projected_crs(ctxt, d->getProjCRSName(), baseCRS,
   13158             :                                          conversion, cs);
   13159           1 :     proj_destroy(baseCRS);
   13160           1 :     proj_destroy(conversion);
   13161           1 :     proj_destroy(cs);
   13162           1 :     d->setPjCRS(crs);
   13163             : }
   13164             : 
   13165             : /*! @endcond */
   13166             : 
   13167             : /************************************************************************/
   13168             : /*                             PromoteTo3D()                            */
   13169             : /************************************************************************/
   13170             : 
   13171             : /** \brief "Promotes" a 2D CRS to a 3D CRS one.
   13172             :  *
   13173             :  * The new axis will be ellipsoidal height, oriented upwards, and with metre
   13174             :  * units.
   13175             :  *
   13176             :  * @param pszName New name for the CRS. If set to NULL, the previous name will
   13177             :  * be used.
   13178             :  * @return OGRERR_NONE if no error occurred.
   13179             :  * @since GDAL 3.1 and PROJ 6.3
   13180             :  */
   13181          42 : OGRErr OGRSpatialReference::PromoteTo3D(const char *pszName)
   13182             : {
   13183          84 :     TAKE_OPTIONAL_LOCK();
   13184             : 
   13185          42 :     d->refreshProjObj();
   13186          42 :     if (!d->m_pj_crs)
   13187           0 :         return OGRERR_FAILURE;
   13188             :     auto newPj =
   13189          42 :         proj_crs_promote_to_3D(d->getPROJContext(), pszName, d->m_pj_crs);
   13190          42 :     if (!newPj)
   13191           0 :         return OGRERR_FAILURE;
   13192          42 :     d->setPjCRS(newPj);
   13193          42 :     return OGRERR_NONE;
   13194             : }
   13195             : 
   13196             : /************************************************************************/
   13197             : /*                             OSRPromoteTo3D()                         */
   13198             : /************************************************************************/
   13199             : 
   13200             : /** \brief "Promotes" a 2D CRS to a 3D CRS one.
   13201             :  *
   13202             :  * See OGRSpatialReference::PromoteTo3D()
   13203             :  *
   13204             :  * @since GDAL 3.1 and PROJ 6.3
   13205             :  */
   13206           3 : OGRErr OSRPromoteTo3D(OGRSpatialReferenceH hSRS, const char *pszName)
   13207             : {
   13208           3 :     VALIDATE_POINTER1(hSRS, "OSRPromoteTo3D", OGRERR_FAILURE);
   13209             : 
   13210           3 :     return OGRSpatialReference::FromHandle(hSRS)->PromoteTo3D(pszName);
   13211             : }
   13212             : 
   13213             : /************************************************************************/
   13214             : /*                             DemoteTo2D()                             */
   13215             : /************************************************************************/
   13216             : 
   13217             : /** \brief "Demote" a 3D CRS to a 2D CRS one.
   13218             :  *
   13219             :  * @param pszName New name for the CRS. If set to NULL, the previous name will
   13220             :  * be used.
   13221             :  * @return OGRERR_NONE if no error occurred.
   13222             :  * @since GDAL 3.2 and PROJ 6.3
   13223             :  */
   13224          47 : OGRErr OGRSpatialReference::DemoteTo2D(const char *pszName)
   13225             : {
   13226          94 :     TAKE_OPTIONAL_LOCK();
   13227             : 
   13228          47 :     d->refreshProjObj();
   13229          47 :     if (!d->m_pj_crs)
   13230           0 :         return OGRERR_FAILURE;
   13231             :     auto newPj =
   13232          47 :         proj_crs_demote_to_2D(d->getPROJContext(), pszName, d->m_pj_crs);
   13233          47 :     if (!newPj)
   13234           0 :         return OGRERR_FAILURE;
   13235          47 :     d->setPjCRS(newPj);
   13236          47 :     return OGRERR_NONE;
   13237             : }
   13238             : 
   13239             : /************************************************************************/
   13240             : /*                             OSRDemoteTo2D()                          */
   13241             : /************************************************************************/
   13242             : 
   13243             : /** \brief "Demote" a 3D CRS to a 2D CRS one.
   13244             :  *
   13245             :  * See OGRSpatialReference::DemoteTo2D()
   13246             :  *
   13247             :  * @since GDAL 3.2 and PROJ 6.3
   13248             :  */
   13249           1 : OGRErr OSRDemoteTo2D(OGRSpatialReferenceH hSRS, const char *pszName)
   13250             : {
   13251           1 :     VALIDATE_POINTER1(hSRS, "OSRDemoteTo2D", OGRERR_FAILURE);
   13252             : 
   13253           1 :     return OGRSpatialReference::FromHandle(hSRS)->DemoteTo2D(pszName);
   13254             : }
   13255             : 
   13256             : /************************************************************************/
   13257             : /*                           GetEPSGGeogCS()                            */
   13258             : /************************************************************************/
   13259             : 
   13260             : /** Try to establish what the EPSG code for this coordinate systems
   13261             :  * GEOGCS might be.  Returns -1 if no reasonable guess can be made.
   13262             :  *
   13263             :  * @return EPSG code
   13264             :  */
   13265             : 
   13266         342 : int OGRSpatialReference::GetEPSGGeogCS() const
   13267             : 
   13268             : {
   13269         684 :     TAKE_OPTIONAL_LOCK();
   13270             : 
   13271             :     /* -------------------------------------------------------------------- */
   13272             :     /*      Check axis order.                                               */
   13273             :     /* -------------------------------------------------------------------- */
   13274         684 :     auto poGeogCRS = std::unique_ptr<OGRSpatialReference>(CloneGeogCS());
   13275         342 :     if (!poGeogCRS)
   13276           0 :         return -1;
   13277             : 
   13278         342 :     bool ret = false;
   13279         342 :     poGeogCRS->d->demoteFromBoundCRS();
   13280         342 :     auto cs = proj_crs_get_coordinate_system(d->getPROJContext(),
   13281         342 :                                              poGeogCRS->d->m_pj_crs);
   13282         342 :     poGeogCRS->d->undoDemoteFromBoundCRS();
   13283         342 :     if (cs)
   13284             :     {
   13285         342 :         const char *pszDirection = nullptr;
   13286         342 :         if (proj_cs_get_axis_info(d->getPROJContext(), cs, 0, nullptr, nullptr,
   13287             :                                   &pszDirection, nullptr, nullptr, nullptr,
   13288         342 :                                   nullptr))
   13289             :         {
   13290         342 :             if (EQUAL(pszDirection, "north"))
   13291             :             {
   13292         143 :                 ret = true;
   13293             :             }
   13294             :         }
   13295             : 
   13296         342 :         proj_destroy(cs);
   13297             :     }
   13298         342 :     if (!ret)
   13299         199 :         return -1;
   13300             : 
   13301             :     /* -------------------------------------------------------------------- */
   13302             :     /*      Do we already have it?                                          */
   13303             :     /* -------------------------------------------------------------------- */
   13304         143 :     const char *pszAuthName = GetAuthorityName("GEOGCS");
   13305         143 :     if (pszAuthName != nullptr && EQUAL(pszAuthName, "epsg"))
   13306          66 :         return atoi(GetAuthorityCode("GEOGCS"));
   13307             : 
   13308             :     /* -------------------------------------------------------------------- */
   13309             :     /*      Get the datum and geogcs names.                                 */
   13310             :     /* -------------------------------------------------------------------- */
   13311             : 
   13312          77 :     const char *pszGEOGCS = GetAttrValue("GEOGCS");
   13313          77 :     const char *pszDatum = GetAttrValue("DATUM");
   13314             : 
   13315             :     // We can only operate on coordinate systems with a geogcs.
   13316         154 :     OGRSpatialReference oSRSTmp;
   13317          77 :     if (pszGEOGCS == nullptr || pszDatum == nullptr)
   13318             :     {
   13319             :         // Calling GetAttrValue("GEOGCS") will fail on a CRS that can't be
   13320             :         // export to WKT1, so try to extract the geographic CRS through PROJ
   13321             :         // API with CopyGeogCSFrom() and get the nodes' values from it.
   13322           1 :         oSRSTmp.CopyGeogCSFrom(this);
   13323           1 :         pszGEOGCS = oSRSTmp.GetAttrValue("GEOGCS");
   13324           1 :         pszDatum = oSRSTmp.GetAttrValue("DATUM");
   13325           1 :         if (pszGEOGCS == nullptr || pszDatum == nullptr)
   13326             :         {
   13327           0 :             return -1;
   13328             :         }
   13329             :     }
   13330             : 
   13331             :     // Lookup geographic CRS name
   13332          77 :     const PJ_TYPE type = PJ_TYPE_GEOGRAPHIC_2D_CRS;
   13333          77 :     PJ_OBJ_LIST *list = proj_create_from_name(
   13334             :         d->getPROJContext(), nullptr, pszGEOGCS, &type, 1, false, 1, nullptr);
   13335          77 :     if (list)
   13336             :     {
   13337          77 :         const auto listSize = proj_list_get_count(list);
   13338          77 :         if (listSize == 1)
   13339             :         {
   13340          49 :             auto crs = proj_list_get(d->getPROJContext(), list, 0);
   13341          49 :             if (crs)
   13342             :             {
   13343          49 :                 pszAuthName = proj_get_id_auth_name(crs, 0);
   13344          49 :                 const char *pszCode = proj_get_id_code(crs, 0);
   13345          49 :                 if (pszAuthName && pszCode && EQUAL(pszAuthName, "EPSG"))
   13346             :                 {
   13347          47 :                     const int nCode = atoi(pszCode);
   13348          47 :                     proj_destroy(crs);
   13349          47 :                     proj_list_destroy(list);
   13350          47 :                     return nCode;
   13351             :                 }
   13352           2 :                 proj_destroy(crs);
   13353             :             }
   13354             :         }
   13355          30 :         proj_list_destroy(list);
   13356             :     }
   13357             : 
   13358             :     /* -------------------------------------------------------------------- */
   13359             :     /*      Is this a "well known" geographic coordinate system?            */
   13360             :     /* -------------------------------------------------------------------- */
   13361          90 :     const bool bWGS = strstr(pszGEOGCS, "WGS") != nullptr ||
   13362          30 :                       strstr(pszDatum, "WGS") ||
   13363          30 :                       strstr(pszGEOGCS, "World Geodetic System") ||
   13364          30 :                       strstr(pszGEOGCS, "World_Geodetic_System") ||
   13365          90 :                       strstr(pszDatum, "World Geodetic System") ||
   13366          30 :                       strstr(pszDatum, "World_Geodetic_System");
   13367             : 
   13368          90 :     const bool bNAD = strstr(pszGEOGCS, "NAD") != nullptr ||
   13369          30 :                       strstr(pszDatum, "NAD") ||
   13370          30 :                       strstr(pszGEOGCS, "North American") ||
   13371          30 :                       strstr(pszGEOGCS, "North_American") ||
   13372          90 :                       strstr(pszDatum, "North American") ||
   13373          30 :                       strstr(pszDatum, "North_American");
   13374             : 
   13375          30 :     if (bWGS && (strstr(pszGEOGCS, "84") || strstr(pszDatum, "84")))
   13376           0 :         return 4326;
   13377             : 
   13378          30 :     if (bWGS && (strstr(pszGEOGCS, "72") || strstr(pszDatum, "72")))
   13379           0 :         return 4322;
   13380             : 
   13381             :     // This is questionable as there are several 'flavors' of NAD83 that
   13382             :     // are not the same as 4269
   13383          30 :     if (bNAD && (strstr(pszGEOGCS, "83") || strstr(pszDatum, "83")))
   13384           0 :         return 4269;
   13385             : 
   13386          30 :     if (bNAD && (strstr(pszGEOGCS, "27") || strstr(pszDatum, "27")))
   13387           0 :         return 4267;
   13388             : 
   13389             :     /* -------------------------------------------------------------------- */
   13390             :     /*      If we know the datum, associate the most likely GCS with        */
   13391             :     /*      it.                                                             */
   13392             :     /* -------------------------------------------------------------------- */
   13393          30 :     const OGRSpatialReference &oActiveObj = oSRSTmp.IsEmpty() ? *this : oSRSTmp;
   13394          30 :     pszAuthName = oActiveObj.GetAuthorityName("GEOGCS|DATUM");
   13395          30 :     if (pszAuthName != nullptr && EQUAL(pszAuthName, "epsg") &&
   13396           0 :         GetPrimeMeridian() == 0.0)
   13397             :     {
   13398           0 :         const int nDatum = atoi(oActiveObj.GetAuthorityCode("GEOGCS|DATUM"));
   13399             : 
   13400           0 :         if (nDatum >= 6000 && nDatum <= 6999)
   13401           0 :             return nDatum - 2000;
   13402             :     }
   13403             : 
   13404          30 :     return -1;
   13405             : }
   13406             : 
   13407             : /************************************************************************/
   13408             : /*                          SetCoordinateEpoch()                        */
   13409             : /************************************************************************/
   13410             : 
   13411             : /** Set the coordinate epoch, as decimal year.
   13412             :  *
   13413             :  * In a dynamic CRS, coordinates of a point on the surface of the Earth may
   13414             :  * change with time. To be unambiguous the coordinates must always be qualified
   13415             :  * with the epoch at which they are valid. The coordinate epoch is not
   13416             :  * necessarily the epoch at which the observation was collected.
   13417             :  *
   13418             :  * Pedantically the coordinate epoch of an observation belongs to the
   13419             :  * observation, and not to the CRS, however it is often more practical to
   13420             :  * bind it to the CRS. The coordinate epoch should be specified for dynamic
   13421             :  * CRS (see IsDynamic())
   13422             :  *
   13423             :  * This method is the same as the OSRSetCoordinateEpoch() function.
   13424             :  *
   13425             :  * @param dfCoordinateEpoch Coordinate epoch as decimal year (e.g. 2021.3)
   13426             :  * @since OGR 3.4
   13427             :  */
   13428             : 
   13429         841 : void OGRSpatialReference::SetCoordinateEpoch(double dfCoordinateEpoch)
   13430             : {
   13431         841 :     d->m_coordinateEpoch = dfCoordinateEpoch;
   13432         841 : }
   13433             : 
   13434             : /************************************************************************/
   13435             : /*                      OSRSetCoordinateEpoch()                         */
   13436             : /************************************************************************/
   13437             : 
   13438             : /** \brief Set the coordinate epoch, as decimal year.
   13439             :  *
   13440             :  * See OGRSpatialReference::SetCoordinateEpoch()
   13441             :  *
   13442             :  * @since OGR 3.4
   13443             :  */
   13444          31 : void OSRSetCoordinateEpoch(OGRSpatialReferenceH hSRS, double dfCoordinateEpoch)
   13445             : {
   13446          31 :     VALIDATE_POINTER0(hSRS, "OSRSetCoordinateEpoch");
   13447             : 
   13448          31 :     return OGRSpatialReference::FromHandle(hSRS)->SetCoordinateEpoch(
   13449          31 :         dfCoordinateEpoch);
   13450             : }
   13451             : 
   13452             : /************************************************************************/
   13453             : /*                          GetCoordinateEpoch()                        */
   13454             : /************************************************************************/
   13455             : 
   13456             : /** Return the coordinate epoch, as decimal year.
   13457             :  *
   13458             :  * In a dynamic CRS, coordinates of a point on the surface of the Earth may
   13459             :  * change with time. To be unambiguous the coordinates must always be qualified
   13460             :  * with the epoch at which they are valid. The coordinate epoch is not
   13461             :  * necessarily the epoch at which the observation was collected.
   13462             :  *
   13463             :  * Pedantically the coordinate epoch of an observation belongs to the
   13464             :  * observation, and not to the CRS, however it is often more practical to
   13465             :  * bind it to the CRS. The coordinate epoch should be specified for dynamic
   13466             :  * CRS (see IsDynamic())
   13467             :  *
   13468             :  * This method is the same as the OSRGetCoordinateEpoch() function.
   13469             :  *
   13470             :  * @return coordinateEpoch Coordinate epoch as decimal year (e.g. 2021.3), or 0
   13471             :  *                         if not set, or relevant.
   13472             :  * @since OGR 3.4
   13473             :  */
   13474             : 
   13475       13158 : double OGRSpatialReference::GetCoordinateEpoch() const
   13476             : {
   13477       13158 :     return d->m_coordinateEpoch;
   13478             : }
   13479             : 
   13480             : /************************************************************************/
   13481             : /*                      OSRGetCoordinateEpoch()                        */
   13482             : /************************************************************************/
   13483             : 
   13484             : /** \brief Get the coordinate epoch, as decimal year.
   13485             :  *
   13486             :  * See OGRSpatialReference::GetCoordinateEpoch()
   13487             :  *
   13488             :  * @since OGR 3.4
   13489             :  */
   13490         687 : double OSRGetCoordinateEpoch(OGRSpatialReferenceH hSRS)
   13491             : {
   13492         687 :     VALIDATE_POINTER1(hSRS, "OSRGetCoordinateEpoch", 0);
   13493             : 
   13494         687 :     return OGRSpatialReference::FromHandle(hSRS)->GetCoordinateEpoch();
   13495             : }

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