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DirectedEdgeStar.h

00001 /**********************************************************************
00002  * $Id: DirectedEdgeStar.h 2556 2009-06-06 22:22:28Z strk $
00003  *
00004  * GEOS - Geometry Engine Open Source
00005  * http://geos.refractions.net
00006  *
00007  * Copyright (C) 2001-2002 Vivid Solutions Inc.
00008  * Copyright (C) 2005-2006 Refractions Research 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 #ifndef GEOS_PLANARGRAPH_DIRECTEDEDGESTAR_H
00018 #define GEOS_PLANARGRAPH_DIRECTEDEDGESTAR_H
00019 
00020 #include <geos/export.h>
00021 
00022 #include <vector>
00023 
00024 // Forward declarations
00025 namespace geos {
00026         namespace geom {
00027                 class Coordinate;
00028         }
00029         namespace planargraph {
00030                 class DirectedEdge;
00031                 class Edge;
00032         }
00033 }
00034 
00035 namespace geos {
00036 namespace planargraph { // geos.planargraph
00037 
00039 class GEOS_DLL DirectedEdgeStar {
00040 protected:
00041 
00042 private:
00046         mutable std::vector<DirectedEdge*> outEdges;
00047         mutable bool sorted;
00048         void sortEdges() const;
00049 
00050 public:
00054         DirectedEdgeStar(): sorted(false) {}
00055 
00056         virtual ~DirectedEdgeStar() {}
00057 
00061         void add(DirectedEdge *de);
00062 
00066         void remove(DirectedEdge *de);
00067 
00072         std::vector<DirectedEdge*>::iterator iterator() { return begin(); }
00074         std::vector<DirectedEdge*>::iterator begin();
00075 
00077         std::vector<DirectedEdge*>::iterator end();
00078 
00080         std::vector<DirectedEdge*>::const_iterator begin() const;
00081 
00083         std::vector<DirectedEdge*>::const_iterator end() const;
00084 
00089         size_t getDegree() const { return outEdges.size(); }
00090 
00095         geom::Coordinate& getCoordinate() const;
00096 
00101         std::vector<DirectedEdge*>& getEdges();
00102 
00108         int getIndex(const Edge *edge);
00109 
00115         int getIndex(const DirectedEdge *dirEdge);
00116 
00121         int getIndex(int i) const;
00122 
00128         DirectedEdge* getNextEdge(DirectedEdge *dirEdge);
00129 };
00130 
00131 
00132 } // namespace geos::planargraph
00133 } // namespace geos
00134 
00135 #endif // GEOS_PLANARGRAPH_DIRECTEDEDGESTAR_H
00136 
00137 /**********************************************************************
00138  * $Log$
00139  * Revision 1.2  2006/06/12 10:49:43  strk
00140  * unsigned int => size_t
00141  *
00142  * Revision 1.1  2006/03/21 21:42:54  strk
00143  * planargraph.h header split, planargraph:: classes renamed to match JTS symbols
00144  *
00145  **********************************************************************/
00146 

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