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EdgeIntersectionList.h

00001 /**********************************************************************
00002  * $Id: EdgeIntersectionList.h 2557 2009-06-08 09:30:55Z strk $
00003  *
00004  * GEOS - Geometry Engine Open Source
00005  * http://geos.refractions.net
00006  *
00007  * Copyright (C) 2005-2006 Refractions Research Inc.
00008  * Copyright (C) 2001-2002 Vivid Solutions Inc.
00009  *
00010  * This is free software; you can redistribute and/or modify it under
00011  * the terms of the GNU Lesser General Public Licence as published
00012  * by the Free Software Foundation. 
00013  * See the COPYING file for more information.
00014  *
00015  **********************************************************************
00016  *
00017  * Last port: geomgraph/EdgeIntersectionList.java rev. 1.5 (JTS-1.10)
00018  *
00019  **********************************************************************/
00020 
00021 
00022 #ifndef GEOS_GEOMGRAPH_EDGEINTERSECTIONLIST_H
00023 #define GEOS_GEOMGRAPH_EDGEINTERSECTIONLIST_H
00024 
00025 #include <geos/export.h>
00026 #include <vector>
00027 #include <set>
00028 #include <string>
00029 
00030 #include <geos/geomgraph/EdgeIntersection.h> // for EdgeIntersectionLessThen
00031 #include <geos/geom/Coordinate.h> // for CoordinateLessThen
00032 
00033 #include <geos/inline.h>
00034 
00035 // Forward declarations
00036 namespace geos {
00037         namespace geom {
00038                 class Coordinate;
00039         }
00040         namespace geomgraph {
00041                 class Edge;
00042         }
00043 }
00044 
00045 namespace geos {
00046 namespace geomgraph { // geos.geomgraph
00047 
00048 
00054 class GEOS_DLL EdgeIntersectionList{
00055 public:
00056         typedef std::set<EdgeIntersection *, EdgeIntersectionLessThen> container;
00057         typedef container::iterator iterator;
00058         typedef container::const_iterator const_iterator;
00059 
00060 private:
00061         container nodeMap;
00062 
00063 public:
00064 
00065         Edge *edge;
00066         EdgeIntersectionList(Edge *edge);
00067         ~EdgeIntersectionList();
00068 
00069         /*
00070          * Adds an intersection into the list, if it isn't already there.
00071          * The input segmentIndex and dist are expected to be normalized.
00072          * @return the EdgeIntersection found or added
00073          */
00074         EdgeIntersection* add(const geom::Coordinate& coord,
00075                 int segmentIndex, double dist);
00076 
00077         iterator begin() { return nodeMap.begin(); }
00078         iterator end() { return nodeMap.end(); }
00079         const_iterator begin() const { return nodeMap.begin(); }
00080         const_iterator end() const { return nodeMap.end(); }
00081 
00082         bool isEmpty() const;
00083         bool isIntersection(const geom::Coordinate& pt) const;
00084 
00085         /*
00086          * Adds entries for the first and last points of the edge to the list
00087          */
00088         void addEndpoints();
00089 
00098         void addSplitEdges(std::vector<Edge*> *edgeList);
00099 
00100         Edge *createSplitEdge(EdgeIntersection *ei0, EdgeIntersection *ei1);
00101         std::string print() const;
00102 
00103 };
00104 
00105 } // namespace geos.geomgraph
00106 } // namespace geos
00107 
00108 //#ifdef GEOS_INLINE
00109 //# include "geos/geomgraph/EdgeIntersectionList.inl"
00110 //#endif
00111 
00112 #endif // ifndef GEOS_GEOMGRAPH_EDGEINTERSECTIONLIST_H
00113 
00114 /**********************************************************************
00115  * $Log$
00116  * Revision 1.2  2006/03/24 09:52:41  strk
00117  * USE_INLINE => GEOS_INLINE
00118  *
00119  * Revision 1.1  2006/03/09 16:46:49  strk
00120  * geos::geom namespace definition, first pass at headers split
00121  *
00122  **********************************************************************/
00123 

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