Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  GDAL
       4             :  * Purpose:  gdal "raster sieve" subcommand
       5             :  * Author:   Alessandro Pasotti <elpaso at itopen dot it>
       6             :  *
       7             :  ******************************************************************************
       8             :  * Copyright (c) 2025, Alessandro Pasotti <elpaso at itopen dot it>
       9             :  *
      10             :  * SPDX-License-Identifier: MIT
      11             :  ****************************************************************************/
      12             : 
      13             : #ifndef GDALALG_RASTER_SIEVE_INCLUDED
      14             : #define GDALALG_RASTER_SIEVE_INCLUDED
      15             : 
      16             : #include "gdalalg_raster_pipeline.h"
      17             : 
      18             : //! @cond Doxygen_Suppress
      19             : 
      20             : /************************************************************************/
      21             : /*                   GDALRasterSieveAlgorithm                           */
      22             : /************************************************************************/
      23             : 
      24             : class GDALRasterSieveAlgorithm /* non final */
      25             :     : public GDALRasterPipelineNonNativelyStreamingAlgorithm
      26             : {
      27             :   public:
      28             :     static constexpr const char *NAME = "sieve";
      29             :     static constexpr const char *DESCRIPTION =
      30             :         "Remove small polygons from a raster dataset.";
      31             :     static constexpr const char *HELP_URL = "/programs/gdal_raster_sieve.html";
      32             : 
      33             :     explicit GDALRasterSieveAlgorithm(bool standaloneStep = false);
      34             : 
      35             :   private:
      36             :     bool RunStep(GDALProgressFunc pfnProgress, void *pProgressData) override;
      37             : 
      38             :     int m_band = 1;
      39             :     int m_sizeThreshold = 2;
      40             :     bool m_connectDiagonalPixels = false;
      41             :     GDALArgDatasetValue m_maskDataset{};
      42             : };
      43             : 
      44             : /************************************************************************/
      45             : /*                  GDALRasterSieveAlgorithmStandalone                  */
      46             : /************************************************************************/
      47             : 
      48             : class GDALRasterSieveAlgorithmStandalone final : public GDALRasterSieveAlgorithm
      49             : {
      50             :   public:
      51          12 :     GDALRasterSieveAlgorithmStandalone()
      52          12 :         : GDALRasterSieveAlgorithm(/* standaloneStep = */ true)
      53             :     {
      54          12 :     }
      55             : };
      56             : 
      57             : //! @endcond
      58             : 
      59             : #endif