PlanarGraph.h

00001 /**********************************************************************
00002  * $Id: PlanarGraph.h 1820 2006-09-06 16:54:23Z mloskot $
00003  *
00004  * GEOS - Geometry Engine Open Source
00005  * http://geos.refractions.net
00006  *
00007  * Copyright (C) 2005-2006 Refractions Research Inc.
00008  *
00009  * This is free software; you can redistribute and/or modify it under
00010  * the terms of the GNU Lesser General Public Licence as published
00011  * by the Free Software Foundation. 
00012  * See the COPYING file for more information.
00013  *
00014  **********************************************************************/
00015 
00016 #ifndef GEOS_PLANARGRAPH_PLANARGRAPH_H
00017 #define GEOS_PLANARGRAPH_PLANARGRAPH_H
00018 
00019 #include <geos/planargraph/NodeMap.h> // for composition
00020 
00021 #include <vector> // for typedefs
00022 
00023 // Forward declarations
00024 namespace geos {
00025         namespace geom { 
00026                 class Coordinate;
00027         }
00028         namespace planargraph { 
00029                 class DirectedEdge;
00030                 class Edge;
00031                 class Node;
00032         }
00033 }
00034 
00035 namespace geos {
00036 namespace planargraph { // geos.planargraph
00037 
00051 class PlanarGraph {
00052 
00053 protected:
00054 
00055         std::vector<Edge*> edges;
00056         std::vector<DirectedEdge*> dirEdges;
00057         NodeMap nodeMap;
00058 
00068         void add(Node *node) {
00069                 nodeMap.add(node);
00070         }
00071 
00081         void add(Edge *edge);
00082 
00090         void add(DirectedEdge *dirEdge) {
00091                 dirEdges.push_back(dirEdge);
00092         }
00093 
00094 public:
00095 
00096         typedef std::vector<Edge *> EdgeContainer;
00097         typedef EdgeContainer::iterator EdgeIterator;
00098 
00099 
00104         PlanarGraph() {}
00105 
00106         virtual ~PlanarGraph() {}
00107 
00113         Node* findNode(const geom::Coordinate& pt) {
00114                 return nodeMap.find(pt);
00115         }
00116 
00121         NodeMap::container::iterator nodeIterator() {
00122                 return nodeMap.begin();
00123         }
00124 
00125         NodeMap::container::iterator nodeBegin() {
00126                 return nodeMap.begin();
00127         }
00128 
00129         NodeMap::container::const_iterator nodeBegin() const {
00130                 return nodeMap.begin();
00131         }
00132 
00133         NodeMap::container::iterator nodeEnd() {
00134                 return nodeMap.end();
00135         }
00136 
00137         NodeMap::container::const_iterator nodeEnd() const {
00138                 return nodeMap.end();
00139         }
00140 
00145         std::vector<Node*>* getNodes() { return nodeMap.getNodes(); }
00146 
00155         std::vector<DirectedEdge*>::iterator dirEdgeIterator() {
00156                 return dirEdges.begin();
00157         }
00158 
00160         std::vector<Edge*>::iterator edgeIterator() {
00161                 return edges.begin();
00162         }
00163 
00165         //
00169         std::vector<Edge*>::iterator edgeBegin() {
00170                 return edges.begin();
00171         }
00172 
00174         //
00178         std::vector<Edge*>::iterator edgeEnd() {
00179                 return edges.end();
00180         }
00181 
00187         std::vector<Edge*>* getEdges() {
00188                 return &edges;
00189         }
00190 
00200         void remove(Edge *edge);
00201 
00211         void remove(DirectedEdge *de);
00212 
00218         void remove(Node *node);
00219 
00225         std::vector<Node*>* findNodesOfDegree(size_t degree);
00226 };
00227 
00228 } // namespace geos::planargraph
00229 } // namespace geos
00230 
00231 #endif // GEOS_PLANARGRAPH_PLANARGRAPH_H
00232 
00233 /**********************************************************************
00234  * $Log$
00235  * Revision 1.2  2006/06/12 10:49:43  strk
00236  * unsigned int => size_t
00237  *
00238  * Revision 1.1  2006/03/21 21:42:54  strk
00239  * planargraph.h header split, planargraph:: classes renamed to match JTS symbols
00240  *
00241  **********************************************************************/
00242 

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