75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
/**********************************************************************
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*
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* GEOS - Geometry Engine Open Source
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* http://geos.osgeo.org
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*
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* Copyright (C) 2021 Paul Ramsey <pramsey@cleverelephant.ca>
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*
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* This is free software; you can redistribute and/or modify it under
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* the terms of the GNU Lesser General Public Licence as published
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* by the Free Software Foundation.
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* See the COPYING file for more information.
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*
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**********************************************************************/
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#pragma once
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#include <geos/export.h>
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#include <memory>
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#include <geos/geom/util/GeometryTransformer.h>
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// Forward declarations
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namespace geos {
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namespace geom {
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class PrecisionModel;
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class Geometry;
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class CoordinateSequence;
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}
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}
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namespace geos {
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namespace precision { // geos.precision
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/**
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* A transformer to reduce the precision of a geometry pointwise.
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*
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* @author mdavis
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*/
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class GEOS_DLL PointwisePrecisionReducerTransformer : public geom::util::GeometryTransformer {
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private:
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const geom::PrecisionModel& targetPM;
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std::unique_ptr<geom::CoordinateSequence> reducePointwise(
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const geom::CoordinateSequence* coordinates);
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public:
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PointwisePrecisionReducerTransformer(
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const geom::PrecisionModel& p_targetPM)
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: targetPM(p_targetPM)
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{};
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static std::unique_ptr<geom::Geometry> reduce(
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const geom::Geometry& geom,
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const geom::PrecisionModel& targetPM);
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protected:
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std::unique_ptr<geom::CoordinateSequence> transformCoordinates(
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const geom::CoordinateSequence* coords,
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const geom::Geometry* parent) override;
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};
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} // namespace geos.precision
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} // namespace geos
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