78 lines
1.8 KiB
C
78 lines
1.8 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) 2024 Martin Davis
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* Copyright (C) 2024 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/geom/GeometryFilter.h>
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#include <geos/export.h>
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#include <memory>
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#include <vector>
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// Forward declarations
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namespace geos {
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namespace geom {
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class LineString;
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class Geometry;
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}
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}
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using geos::geom::LineString;
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using geos::geom::Geometry;
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using geos::geom::GeometryFilter;
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namespace geos { // geos.
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namespace operation { // geos.operation
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namespace relateng { // geos.operation.relateng
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class GEOS_DLL LineStringExtracter : public GeometryFilter {
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private:
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std::vector<const LineString*>& comps;
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public:
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LineStringExtracter(std::vector<const LineString*>& p_comps)
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: comps(p_comps)
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{}
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void filter_ro(const geom::Geometry* geom) override;
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static void getLines(const Geometry* geom, std::vector<const LineString*>& lines);
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static std::vector<const LineString*> getLines(const Geometry* geom);
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/**
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* Extracts the {@link LineString} elements from a single {@link Geometry}
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* and returns them as either a {@link LineString} or {@link MultiLineString}.
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*
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* @param geom the geometry from which to extract
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* @return a linear geometry
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*/
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// static std::unique_ptr<Geometry> getGeometry(const Geometry* geom);
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};
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} // namespace geos.operation.relateng
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} // namespace geos.operation
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} // namespace geos
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