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/******************************************************************************
*
* Project: GDAL
* Purpose: gdal "raster polygonize" subcommand
* Author: Even Rouault <even dot rouault at spatialys.com>
*
******************************************************************************
* Copyright (c) 2025, Even Rouault <even dot rouault at spatialys.com>
*
* SPDX-License-Identifier: MIT
****************************************************************************/
#ifndef GDALALG_RASTER_POLYGONIZE_INCLUDED
#define GDALALG_RASTER_POLYGONIZE_INCLUDED
#include "gdalalg_abstract_pipeline.h"
//! @cond Doxygen_Suppress
/************************************************************************/
/* GDALRasterPolygonizeAlgorithm */
/************************************************************************/
class GDALRasterPolygonizeAlgorithm /* non final */
: public GDALPipelineStepAlgorithm
{
public:
static constexpr const char *NAME = "polygonize";
static constexpr const char *DESCRIPTION =
"Create a polygon feature dataset from a raster band.";
static constexpr const char *HELP_URL =
"/programs/gdal_raster_polygonize.html";
explicit GDALRasterPolygonizeAlgorithm(bool standaloneStep = false);
bool IsNativelyStreamingCompatible() const override
{
return false;
}
int GetInputType() const override
{
return GDAL_OF_RASTER;
}
int GetOutputType() const override
{
return GDAL_OF_VECTOR;
}
bool
CanHandleNextStep(GDALPipelineStepAlgorithm *poNextStep) const override;
private:
bool RunStep(GDALPipelineStepRunContext &ctxt) override;
bool RunImpl(GDALProgressFunc pfnProgress, void *pProgressData) override;
// polygonize specific arguments
int m_band = 1;
std::string m_attributeName = "DN";
bool m_connectDiagonalPixels = false;
// hidden
int m_commitInterval = 0;
};
/************************************************************************/
/* GDALRasterPolygonizeAlgorithmStandalone */
/************************************************************************/
class GDALRasterPolygonizeAlgorithmStandalone final
: public GDALRasterPolygonizeAlgorithm
{
public:
GDALRasterPolygonizeAlgorithmStandalone()
: GDALRasterPolygonizeAlgorithm(/* standaloneStep = */ true)
{
}
~GDALRasterPolygonizeAlgorithmStandalone() override;
};
//! @endcond
#endif
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