89 lines
1.8 KiB
C
89 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/Coordinate.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 algorithm {
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class BoundaryNodeRule;
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}
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namespace geom {
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class CoordinateXY;
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class LineString;
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}
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}
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using geos::algorithm::BoundaryNodeRule;
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using geos::geom::Coordinate;
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using geos::geom::CoordinateXY;
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using geos::geom::LineString;
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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 LinearBoundary {
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private:
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// Members
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Coordinate::ConstIntMap m_vertexDegree;
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bool m_hasBoundary;
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const BoundaryNodeRule& m_boundaryNodeRule;
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public:
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// Constructors
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LinearBoundary(std::vector<const LineString*>& lines, const BoundaryNodeRule& bnRule);
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bool hasBoundary() const;
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bool isBoundary(const CoordinateXY* pt) const;
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private:
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// Methods
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bool checkBoundary(Coordinate::ConstIntMap& vertexDegree) const;
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static void computeBoundaryPoints(
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std::vector<const LineString*>& lines,
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Coordinate::ConstIntMap& vertexDegree);
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static void addEndpoint(
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const CoordinateXY *p,
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Coordinate::ConstIntMap& vertexDegree);
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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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