125 lines
2.6 KiB
C++
125 lines
2.6 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) 2005-2006 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: geomgraph/EdgeList.java rev. 1.4 (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 <vector>
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#include <unordered_map>
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#include <string>
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#include <iostream>
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#include <geos/noding/OrientedCoordinateArray.h> // for map comparator
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#ifdef _MSC_VER
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#pragma warning(push)
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#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
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#endif
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// Forward declarations
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namespace geos {
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namespace index {
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class SpatialIndex;
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}
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namespace geomgraph {
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class Edge;
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}
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}
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namespace geos {
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namespace geomgraph { // geos.geomgraph
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/** \brief
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* A EdgeList is a list of Edges.
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*
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* It supports locating edges
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* that are pointwise equals to a target edge.
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*/
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class GEOS_DLL EdgeList final {
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private:
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std::vector<Edge*> edges;
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struct OcaCmp {
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bool
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operator()(
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const noding::OrientedCoordinateArray* oca1,
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const noding::OrientedCoordinateArray* oca2) const
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{
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return *oca1 < *oca2;
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}
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};
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/**
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* An index of the edges, for fast lookup.
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*/
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typedef std::unordered_map<noding::OrientedCoordinateArray,
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Edge*,
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noding::OrientedCoordinateArray::HashCode> EdgeMap;
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EdgeMap ocaMap;
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public:
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friend std::ostream& operator<< (std::ostream& os, const EdgeList& el);
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EdgeList()
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:
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edges(),
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ocaMap()
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{}
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~EdgeList() = default;
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/**
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* Insert an edge unless it is already in the list
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*/
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void add(Edge* e);
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void addAll(const std::vector<Edge*>& edgeColl);
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std::vector<Edge*>&
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getEdges()
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{
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return edges;
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}
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Edge* findEqualEdge(const Edge* e) const;
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Edge* get(std::size_t i);
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int findEdgeIndex(const Edge* e) const;
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std::string print();
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void clearList();
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};
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std::ostream& operator<< (std::ostream& os, const EdgeList& el);
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} // namespace geos.geomgraph
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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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