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<h1>PlanarGraph.h</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/**********************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> * $Id: PlanarGraph.h 2733 2009-11-20 19:58:33Z strk $</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * GEOS - Geometry Engine Open Source</span>
<a name="l00005"></a>00005 <span class="comment"> * http://geos.refractions.net</span>
<a name="l00006"></a>00006 <span class="comment"> *</span>
<a name="l00007"></a>00007 <span class="comment"> * Copyright (C) 2005-2006 Refractions Research Inc.</span>
<a name="l00008"></a>00008 <span class="comment"> *</span>
<a name="l00009"></a>00009 <span class="comment"> * This is free software; you can redistribute and/or modify it under</span>
<a name="l00010"></a>00010 <span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span>
<a name="l00011"></a>00011 <span class="comment"> * by the Free Software Foundation. </span>
<a name="l00012"></a>00012 <span class="comment"> * See the COPYING file for more information.</span>
<a name="l00013"></a>00013 <span class="comment"> *</span>
<a name="l00014"></a>00014 <span class="comment"> **********************************************************************/</span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="preprocessor">#ifndef GEOS_PLANARGRAPH_PLANARGRAPH_H</span>
<a name="l00017"></a>00017 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_PLANARGRAPH_PLANARGRAPH_H</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span>
<a name="l00019"></a>00019 <span class="preprocessor">#include <geos/export.h></span>
<a name="l00020"></a>00020 <span class="preprocessor">#include <geos/planargraph/NodeMap.h></span> <span class="comment">// for composition</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#include <vector></span> <span class="comment">// for typedefs</span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="comment">// Forward declarations</span>
<a name="l00025"></a>00025 <span class="keyword">namespace </span>geos {
<a name="l00026"></a>00026 <span class="keyword">namespace </span>geom {
<a name="l00027"></a>00027 <span class="keyword">class </span>Coordinate;
<a name="l00028"></a>00028 }
<a name="l00029"></a>00029 <span class="keyword">namespace </span>planargraph {
<a name="l00030"></a>00030 <span class="keyword">class </span>DirectedEdge;
<a name="l00031"></a>00031 <span class="keyword">class </span>Edge;
<a name="l00032"></a>00032 <span class="keyword">class </span>Node;
<a name="l00033"></a>00033 }
<a name="l00034"></a>00034 }
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="keyword">namespace </span>geos {
<a name="l00037"></a>00037 <span class="keyword">namespace </span>planargraph { <span class="comment">// geos.planargraph</span>
<a name="l00038"></a>00038
<a name="l00052"></a><a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html">00052</a> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html" title="Represents a directed graph which is embeddable in a planar surface.">PlanarGraph</a> {
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="keyword">protected</span>:
<a name="l00055"></a>00055
<a name="l00056"></a>00056 std::vector<Edge*> edges;
<a name="l00057"></a>00057 std::vector<DirectedEdge*> dirEdges;
<a name="l00058"></a>00058 <a class="code" href="classgeos_1_1planargraph_1_1NodeMap.html" title="A map of Node, indexed by the coordinate of the node.">NodeMap</a> nodeMap;
<a name="l00059"></a>00059
<a name="l00069"></a><a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a930a3d2e45f4a2caef6cb86cbe7fd731">00069</a> <span class="keywordtype">void</span> <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a930a3d2e45f4a2caef6cb86cbe7fd731" title="Adds a node to the std::map, replacing any that is already at that location.">add</a>(<a class="code" href="classgeos_1_1planargraph_1_1Node.html" title="A node in a PlanarGraph is a location where 0 or more Edge meet.">Node</a> *node) {
<a name="l00070"></a>00070 nodeMap.add(node);
<a name="l00071"></a>00071 }
<a name="l00072"></a>00072
<a name="l00082"></a>00082 <span class="keywordtype">void</span> add(<a class="code" href="classgeos_1_1planargraph_1_1Edge.html" title="Represents an undirected edge of a PlanarGraph.">Edge</a> *edge);
<a name="l00083"></a>00083
<a name="l00091"></a><a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a92507cdab36f99269e388d190b01e227">00091</a> <span class="keywordtype">void</span> <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a92507cdab36f99269e388d190b01e227" title="Adds the Edge to this PlanarGraph.">add</a>(<a class="code" href="classgeos_1_1planargraph_1_1DirectedEdge.html" title="Represents a directed edge in a PlanarGraph.">DirectedEdge</a> *dirEdge) {
<a name="l00092"></a>00092 dirEdges.push_back(dirEdge);
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094
<a name="l00095"></a>00095 <span class="keyword">public</span>:
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="keyword">typedef</span> std::vector<Edge *> EdgeContainer;
<a name="l00098"></a>00098 <span class="keyword">typedef</span> EdgeContainer::iterator EdgeIterator;
<a name="l00099"></a>00099
<a name="l00100"></a>00100
<a name="l00105"></a><a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a01eaae76182f6582461a7a6e391269bc">00105</a> <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a01eaae76182f6582461a7a6e391269bc" title="Constructs a PlanarGraph without any Edges, DirectedEdges, or Nodes.">PlanarGraph</a>() {}
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="keyword">virtual</span> ~<a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html" title="Represents a directed graph which is embeddable in a planar surface.">PlanarGraph</a>() {}
<a name="l00108"></a>00108
<a name="l00114"></a><a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a08ddec6cb0d67c5837227475058ebdd4">00114</a> <a class="code" href="classgeos_1_1planargraph_1_1Node.html" title="A node in a PlanarGraph is a location where 0 or more Edge meet.">Node</a>* <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a08ddec6cb0d67c5837227475058ebdd4" title="Returns the Node at the given location, or null if no Node was there.">findNode</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>& pt) {
<a name="l00115"></a>00115 <span class="keywordflow">return</span> nodeMap.find(pt);
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117
<a name="l00122"></a><a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a5e041772de46fbd0d04b9adced4eddc4">00122</a> NodeMap::container::iterator <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a5e041772de46fbd0d04b9adced4eddc4" title="Returns an Iterator over the Nodes in this PlanarGraph.">nodeIterator</a>() {
<a name="l00123"></a>00123 <span class="keywordflow">return</span> nodeMap.begin();
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125
<a name="l00126"></a>00126 NodeMap::container::iterator nodeBegin() {
<a name="l00127"></a>00127 <span class="keywordflow">return</span> nodeMap.begin();
<a name="l00128"></a>00128 }
<a name="l00129"></a>00129
<a name="l00130"></a>00130 NodeMap::container::const_iterator nodeBegin()<span class="keyword"> const </span>{
<a name="l00131"></a>00131 <span class="keywordflow">return</span> nodeMap.begin();
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133
<a name="l00134"></a>00134 NodeMap::container::iterator nodeEnd() {
<a name="l00135"></a>00135 <span class="keywordflow">return</span> nodeMap.end();
<a name="l00136"></a>00136 }
<a name="l00137"></a>00137
<a name="l00138"></a>00138 NodeMap::container::const_iterator nodeEnd()<span class="keyword"> const </span>{
<a name="l00139"></a>00139 <span class="keywordflow">return</span> nodeMap.end();
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141
<a name="l00148"></a><a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#ae2a0cbc53de6ee7191cf2a19156f7053">00148</a> <span class="keywordtype">void</span> <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#ae2a0cbc53de6ee7191cf2a19156f7053" title="Returns the Nodes in this PlanarGraph.">getNodes</a>(std::vector<Node*>& nodes) { nodeMap.getNodes(nodes); }
<a name="l00149"></a>00149
<a name="l00158"></a><a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a3acaf9fdbb54655fdf1e097462dc49d6">00158</a> std::vector<DirectedEdge*>::iterator <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a3acaf9fdbb54655fdf1e097462dc49d6" title="Returns an Iterator over the DirectedEdges in this PlanarGraph, in the order in which they were added...">dirEdgeIterator</a>() {
<a name="l00159"></a>00159 <span class="keywordflow">return</span> dirEdges.begin();
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161
<a name="l00163"></a><a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a90498ae812494e804effb9f244679212">00163</a> std::vector<Edge*>::iterator <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a90498ae812494e804effb9f244679212" title="Alias for edgeBegin().">edgeIterator</a>() {
<a name="l00164"></a>00164 <span class="keywordflow">return</span> edges.begin();
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166
<a name="l00168"></a>00168 <span class="comment">//</span>
<a name="l00172"></a><a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#aab2c1afdc638406f50b88c33aa592d86">00172</a> <span class="comment"></span> std::vector<Edge*>::iterator <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#aab2c1afdc638406f50b88c33aa592d86" title="Returns an iterator to first Edge in this graph.">edgeBegin</a>() {
<a name="l00173"></a>00173 <span class="keywordflow">return</span> edges.begin();
<a name="l00174"></a>00174 }
<a name="l00175"></a>00175
<a name="l00177"></a>00177 <span class="comment">//</span>
<a name="l00181"></a><a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#abf4facc89036fbd09552c3edc8ab8d57">00181</a> <span class="comment"></span> std::vector<Edge*>::iterator <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#abf4facc89036fbd09552c3edc8ab8d57" title="Returns an iterator to one-past last Edge in this graph.">edgeEnd</a>() {
<a name="l00182"></a>00182 <span class="keywordflow">return</span> edges.end();
<a name="l00183"></a>00183 }
<a name="l00184"></a>00184
<a name="l00190"></a><a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a46c8a6e3d8f79b1eab86fa542c073157">00190</a> std::vector<Edge*>* <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html#a46c8a6e3d8f79b1eab86fa542c073157" title="Returns the Edges that have been added to this PlanarGraph.">getEdges</a>() {
<a name="l00191"></a>00191 <span class="keywordflow">return</span> &edges;
<a name="l00192"></a>00192 }
<a name="l00193"></a>00193
<a name="l00203"></a>00203 <span class="keywordtype">void</span> <span class="keyword">remove</span>(<a class="code" href="classgeos_1_1planargraph_1_1Edge.html" title="Represents an undirected edge of a PlanarGraph.">Edge</a> *edge);
<a name="l00204"></a>00204
<a name="l00214"></a>00214 <span class="keywordtype">void</span> <span class="keyword">remove</span>(<a class="code" href="classgeos_1_1planargraph_1_1DirectedEdge.html" title="Represents a directed edge in a PlanarGraph.">DirectedEdge</a> *de);
<a name="l00215"></a>00215
<a name="l00221"></a>00221 <span class="keywordtype">void</span> <span class="keyword">remove</span>(<a class="code" href="classgeos_1_1planargraph_1_1Node.html" title="A node in a PlanarGraph is a location where 0 or more Edge meet.">Node</a> *node);
<a name="l00222"></a>00222
<a name="l00228"></a>00228 std::vector<Node*>* findNodesOfDegree(<span class="keywordtype">size_t</span> degree);
<a name="l00229"></a>00229 };
<a name="l00230"></a>00230
<a name="l00231"></a>00231 } <span class="comment">// namespace geos::planargraph</span>
<a name="l00232"></a>00232 } <span class="comment">// namespace geos</span>
<a name="l00233"></a>00233
<a name="l00234"></a>00234 <span class="preprocessor">#endif // GEOS_PLANARGRAPH_PLANARGRAPH_H</span>
<a name="l00235"></a>00235 <span class="preprocessor"></span>
<a name="l00236"></a>00236 <span class="comment">/**********************************************************************</span>
<a name="l00237"></a>00237 <span class="comment"> * $Log$</span>
<a name="l00238"></a>00238 <span class="comment"> * Revision 1.2 2006/06/12 10:49:43 strk</span>
<a name="l00239"></a>00239 <span class="comment"> * unsigned int => size_t</span>
<a name="l00240"></a>00240 <span class="comment"> *</span>
<a name="l00241"></a>00241 <span class="comment"> * Revision 1.1 2006/03/21 21:42:54 strk</span>
<a name="l00242"></a>00242 <span class="comment"> * planargraph.h header split, planargraph:: classes renamed to match JTS symbols</span>
<a name="l00243"></a>00243 <span class="comment"> *</span>
<a name="l00244"></a>00244 <span class="comment"> **********************************************************************/</span>
<a name="l00245"></a>00245
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