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68 lines
2.3 KiB
68 lines
2.3 KiB
/******************************************************************************
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*
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* Project: GDAL
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* Purpose: "scale" step of "raster pipeline"
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* Author: Even Rouault <even dot rouault at spatialys.com>
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*
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******************************************************************************
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* Copyright (c) 2025, Even Rouault <even dot rouault at spatialys.com>
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*
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* SPDX-License-Identifier: MIT
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****************************************************************************/
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#ifndef GDALALG_RASTER_SCALE_INCLUDED
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#define GDALALG_RASTER_SCALE_INCLUDED
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#include <limits>
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#include "gdalalg_raster_pipeline.h"
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//! @cond Doxygen_Suppress
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/************************************************************************/
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/* GDALRasterScaleAlgorithm */
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/************************************************************************/
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class GDALRasterScaleAlgorithm /* non final */
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: public GDALRasterPipelineStepAlgorithm
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{
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public:
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static constexpr const char *NAME = "scale";
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static constexpr const char *DESCRIPTION =
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"Scale the values of the bands of a raster dataset.";
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static constexpr const char *HELP_URL = "/programs/gdal_raster_scale.html";
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explicit GDALRasterScaleAlgorithm(bool standaloneStep = false);
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private:
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bool RunStep(GDALRasterPipelineStepRunContext &ctxt) override;
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std::string m_type{};
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int m_band = 0;
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double m_srcMin = std::numeric_limits<double>::quiet_NaN();
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double m_srcMax = std::numeric_limits<double>::quiet_NaN();
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double m_dstMin = std::numeric_limits<double>::quiet_NaN();
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double m_dstMax = std::numeric_limits<double>::quiet_NaN();
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double m_exponent = std::numeric_limits<double>::quiet_NaN();
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bool m_noClip = false;
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};
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/************************************************************************/
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/* GDALRasterScaleAlgorithmStandalone */
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/************************************************************************/
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class GDALRasterScaleAlgorithmStandalone final : public GDALRasterScaleAlgorithm
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{
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public:
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GDALRasterScaleAlgorithmStandalone()
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: GDALRasterScaleAlgorithm(/* standaloneStep = */ true)
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{
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}
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~GDALRasterScaleAlgorithmStandalone() override;
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};
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//! @endcond
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#endif /* GDALALG_RASTER_SCALE_INCLUDED */
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