72 lines
1.5 KiB
C
72 lines
1.5 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) 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 <map>
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#include <geos/geom/CoordinateSequenceFilter.h>
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#include <geos/geom/Coordinate.h>
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#include <geos/export.h>
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namespace geos {
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namespace geom {
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class CoordinateSequence;
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class Geometry;
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}
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}
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using geos::geom::Coordinate;
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using geos::geom::CoordinateSequence;
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using geos::geom::CoordinateSequenceFilter;
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using geos::geom::Geometry;
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namespace geos {
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namespace coverage { // geos::coverage
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class VertexRingCounter : public CoordinateSequenceFilter
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{
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public:
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VertexRingCounter(std::map<Coordinate, std::size_t>& counts)
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: vertexCounts(counts)
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{};
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bool isGeometryChanged() const override {
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return false;
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}
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bool isDone() const override {
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return false;
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}
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void filter_ro(const CoordinateSequence& seq, std::size_t i) override;
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static void count(
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const std::vector<const Geometry*>& geoms,
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std::map<Coordinate, std::size_t>& counts);
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private:
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std::map<Coordinate, std::size_t>& vertexCounts;
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}; // VertexRingCounter
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} // geos::coverage
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} // geos
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