103 lines
2.3 KiB
C++
103 lines
2.3 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) 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 <vector>
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#include <memory>
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#include <geos/operation/relateng/NodeSection.h>
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#include <geos/export.h>
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// Forward declarations
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namespace geos {
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namespace operation {
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namespace relateng {
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class RelateNode;
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// class NodeSection;
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}
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}
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namespace geom {
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class CoordinateXY;
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class Geometry;
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}
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}
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using geos::geom::CoordinateXY;
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using geos::geom::Geometry;
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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 NodeSections {
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private:
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// Members
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const CoordinateXY* nodePt;
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std::vector<std::unique_ptr<NodeSection>> sections;
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// Methods
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/**
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* Sorts the sections so that:
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* * lines are before areas
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* * edges from the same polygon are contiguous
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*/
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void prepareSections();
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static bool hasMultiplePolygonSections(
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std::vector<std::unique_ptr<NodeSection>>& sections,
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std::size_t i);
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static std::vector<const NodeSection*> collectPolygonSections(
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std::vector<std::unique_ptr<NodeSection>>& sections,
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std::size_t i);
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public:
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NodeSections(const CoordinateXY* pt)
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: nodePt(pt)
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{};
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const CoordinateXY* getCoordinate() const;
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void addNodeSection(NodeSection* e);
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bool hasInteractionAB() const;
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const Geometry* getPolygonal(bool isA) const;
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std::unique_ptr<RelateNode> createNode();
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/**
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* Disable copy construction and assignment. Apparently needed to make this
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* class compile under MSVC. (See https://stackoverflow.com/q/29565299)
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*/
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NodeSections(const NodeSections&) = delete;
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NodeSections& operator=(const NodeSections&) = delete;
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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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