Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  GDAL
       4             :  * Purpose:  "gdal vector concave-hull"
       5             :  * Author:   Daniel Baston
       6             :  *
       7             :  ******************************************************************************
       8             :  * Copyright (c) 2026, ISciences LLC
       9             :  *
      10             :  * SPDX-License-Identifier: MIT
      11             :  ****************************************************************************/
      12             : 
      13             : #ifndef GDALALG_VECTOR_CONCAVE_HULL_INCLUDED
      14             : #define GDALALG_VECTOR_CONCAVE_HULL_INCLUDED
      15             : 
      16             : #include "gdalalg_vector_geom.h"
      17             : 
      18             : //! @cond Doxygen_Suppress
      19             : 
      20             : class GDALVectorConcaveHullAlgorithm /* non final */
      21             :     : public GDALVectorGeomAbstractAlgorithm
      22             : {
      23             :   public:
      24             :     static constexpr const char *NAME = "concave-hull";
      25             :     static constexpr const char *DESCRIPTION =
      26             :         "Compute the concave hull of geometries of a vector dataset.";
      27             :     static constexpr const char *HELP_URL =
      28             :         "/programs/gdal_vector_concave_hull.html";
      29             : 
      30             :     struct Options : public GDALVectorGeomAbstractAlgorithm::OptionsBase
      31             :     {
      32             :         double m_ratio = 0.0;
      33             :         bool m_allowHoles = false;
      34             :         bool m_tight = false;
      35             :     };
      36             : 
      37             :     std::unique_ptr<OGRLayerWithTranslateFeature>
      38             :     CreateAlgLayer(OGRLayer &srcLayer) override;
      39             : 
      40             :     explicit GDALVectorConcaveHullAlgorithm(bool standaloneStep = false);
      41             : 
      42             :   private:
      43             :     bool RunStep(GDALPipelineStepRunContext &ctxt) override;
      44             : 
      45             :     Options m_opts{};
      46             : };
      47             : 
      48         112 : class GDALVectorConcaveHullAlgorithmStandalone final
      49             :     : public GDALVectorConcaveHullAlgorithm
      50             : {
      51             :   public:
      52          56 :     GDALVectorConcaveHullAlgorithmStandalone()
      53          56 :         : GDALVectorConcaveHullAlgorithm(/* standaloneStep = */ true)
      54             :     {
      55          56 :     }
      56             : 
      57             :     ~GDALVectorConcaveHullAlgorithmStandalone() override;
      58             : };
      59             : 
      60             : //! @endcond
      61             : 
      62             : #endif /* GDALALG_VECTOR_CONCAVE_HULL_INCLUDED */