91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
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/**********************************************************************
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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) 2010 Sandro Santilli <strk@kbt.io>
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* Copyright (C) 2006 Refractions Research Inc.
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* Copyright (C) 2001-2002 Vivid Solutions Inc.
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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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*
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* Last port: operation/polygonize/Polygonizer.java rev. 1.6 (JTS-1.10)
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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 <geos/geom/Geometry.h>
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#include <geos/geom/util/GeometryTransformer.h>
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#include <geos/geom/util/Densifier.h>
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#include <geos/util/Interrupt.h>
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#include <vector>
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#ifdef _MSC_VER
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#pragma warning(push)
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/* warning C4251: needs to have dll-interface to be used by */
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/* clients of class */
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#pragma warning(disable: 4251)
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#endif
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namespace geos {
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namespace geom {
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namespace util {
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/**
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* Densifies a {@link Geometry} by inserting extra vertices along the line segments
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* contained in the geometry.
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* All segments in the created densified geometry will be no longer than
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* than the given distance tolerance.
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* Densified polygonal geometries are guaranteed to be topologically correct.
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* The coordinates created during densification respect the input geometry's
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* {@link PrecisionModel}.
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* <p>
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* <b>Note:</b> At some future point this class will
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* offer a variety of densification strategies.
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*
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* @author Martin Davis
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*/
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class GEOS_DLL Densifier {
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public:
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Densifier(const Geometry* inputGeom);
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static Geometry::Ptr densify(const Geometry* geom, double distanceTolerance);
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void setDistanceTolerance(double distanceTolerance);
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Geometry::Ptr getResultGeometry() const;
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private:
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double distanceTolerance;
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const Geometry* inputGeom;
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static std::unique_ptr<CoordinateSequence> densifyPoints(const CoordinateSequence& pts, double distanceTolerance,
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const PrecisionModel* precModel);
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class GEOS_DLL DensifyTransformer: public GeometryTransformer {
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public:
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DensifyTransformer(double distanceTolerance);
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double distanceTolerance;
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CoordinateSequence::Ptr transformCoordinates(const CoordinateSequence* coords, const Geometry* parent) override;
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Geometry::Ptr transformPolygon(const Polygon* geom, const Geometry* parent) override;
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Geometry::Ptr transformMultiPolygon(const MultiPolygon* geom, const Geometry* parent) override;
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Geometry::Ptr createValidArea(const Geometry* roughAreaGeom);
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};
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}; // Densifier
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} // namespace geos.geom.util
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} // namespace geos.geom
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} // namespace geos
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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