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<h1>Node.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: Node.h 2556 2009-06-06 22:22:28Z 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) 2001-2002 Vivid Solutions Inc.</span>
<a name="l00008"></a>00008 <span class="comment"> * Copyright (C) 2005-2006 Refractions Research Inc.</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * This is free software; you can redistribute and/or modify it under</span>
<a name="l00011"></a>00011 <span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span>
<a name="l00012"></a>00012 <span class="comment"> * by the Free Software Foundation. </span>
<a name="l00013"></a>00013 <span class="comment"> * See the COPYING file for more information.</span>
<a name="l00014"></a>00014 <span class="comment"> *</span>
<a name="l00015"></a>00015 <span class="comment"> **********************************************************************/</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#ifndef GEOS_PLANARGRAPH_NODE_H</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_PLANARGRAPH_NODE_H</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span>
<a name="l00020"></a>00020 <span class="preprocessor">#include <geos/export.h></span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#include <geos/planargraph/GraphComponent.h></span> <span class="comment">// for inheritance</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <geos/planargraph/DirectedEdgeStar.h></span> <span class="comment">// for inlines</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <geos/geom/Coordinate.h></span> <span class="comment">// for composition</span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="comment">// Forward declarations</span>
<a name="l00027"></a>00027 <span class="keyword">namespace </span>geos {
<a name="l00028"></a>00028 <span class="keyword">namespace </span>planargraph {
<a name="l00029"></a>00029 <span class="comment">//class DirectedEdgeStar;</span>
<a name="l00030"></a>00030 <span class="keyword">class </span>DirectedEdge;
<a name="l00031"></a>00031 }
<a name="l00032"></a>00032 }
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="keyword">namespace </span>geos {
<a name="l00035"></a>00035 <span class="keyword">namespace </span>planargraph { <span class="comment">// geos.planargraph</span>
<a name="l00036"></a>00036
<a name="l00046"></a><a class="code" href="classgeos_1_1planargraph_1_1Node.html">00046</a> <span class="keyword">class </span>GEOS_DLL <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>: <span class="keyword">public</span> <a class="code" href="classgeos_1_1planargraph_1_1GraphComponent.html" title="The base class for all graph component classes.">GraphComponent</a> {
<a name="l00047"></a>00047 <span class="keyword">protected</span>:
<a name="l00048"></a>00048
<a name="l00050"></a><a class="code" href="classgeos_1_1planargraph_1_1Node.html#ae7678a19007537325f5474cf69bc73f1">00050</a> <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="l00051"></a>00051
<a name="l00053"></a><a class="code" href="classgeos_1_1planargraph_1_1Node.html#ab7c54c5010c7d239bdc6e10d0165a89c">00053</a> <a class="code" href="classgeos_1_1planargraph_1_1DirectedEdgeStar.html" title="A sorted collection of DirectedEdge which leave a Node in a PlanarGraph.">DirectedEdgeStar</a> *deStar;
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="keyword">public</span>:
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="keyword">friend</span> std::ostream& <a class="code" href="namespacegeos_1_1planargraph.html#a4288e7e185a32c17eec042b220e12966" title="Print a Edge.">operator << </a>(std::ostream& os, <span class="keyword">const</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>&);
<a name="l00058"></a>00058
<a name="l00066"></a>00066 <span class="keyword">static</span> std::vector<Edge*>* getEdgesBetween(<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> *node0,
<a name="l00067"></a>00067 <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> *node1);
<a name="l00068"></a>00068
<a name="l00070"></a><a class="code" href="classgeos_1_1planargraph_1_1Node.html#af46bb71adc43a360debca643b4ba40eb">00070</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>(<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>& newPt)
<a name="l00071"></a>00071 :
<a name="l00072"></a>00072 pt(newPt)
<a name="l00073"></a>00073 { deStar=<span class="keyword">new</span> <a class="code" href="classgeos_1_1planargraph_1_1DirectedEdgeStar.html" title="A sorted collection of DirectedEdge which leave a Node in a PlanarGraph.">DirectedEdgeStar</a>(); }
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="keyword">virtual</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>() {
<a name="l00076"></a>00076 <span class="keyword">delete</span> deStar;
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078
<a name="l00085"></a><a class="code" href="classgeos_1_1planargraph_1_1Node.html#a5c86e9c7a21420231ffe0b54c4359eb5">00085</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_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>& newPt, <a class="code" href="classgeos_1_1planargraph_1_1DirectedEdgeStar.html" title="A sorted collection of DirectedEdge which leave a Node in a PlanarGraph.">DirectedEdgeStar</a> *newDeStar)
<a name="l00086"></a>00086 :
<a name="l00087"></a>00087 pt(newPt),
<a name="l00088"></a>00088 deStar(newDeStar)
<a name="l00089"></a>00089 {}
<a name="l00090"></a>00090
<a name="l00094"></a><a class="code" href="classgeos_1_1planargraph_1_1Node.html#adf5bb7cfcfbc0a36e85a6ab6038f9ed7">00094</a> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>& <a class="code" href="classgeos_1_1planargraph_1_1Node.html#adf5bb7cfcfbc0a36e85a6ab6038f9ed7" title="Returns the location of this Node.">getCoordinate</a>() {
<a name="l00095"></a>00095 <span class="keywordflow">return</span> pt;
<a name="l00096"></a>00096 }
<a name="l00097"></a>00097
<a name="l00101"></a><a class="code" href="classgeos_1_1planargraph_1_1Node.html#a98c84ddcbaeaec9eb3b3b348c5cb3d03">00101</a> <span class="keywordtype">void</span> <a class="code" href="classgeos_1_1planargraph_1_1Node.html#a98c84ddcbaeaec9eb3b3b348c5cb3d03" title="Adds an outgoing DirectedEdge to this Node.">addOutEdge</a>(<a class="code" href="classgeos_1_1planargraph_1_1DirectedEdge.html" title="Represents a directed edge in a PlanarGraph.">DirectedEdge</a> *de) {
<a name="l00102"></a>00102 deStar->add(de);
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104
<a name="l00109"></a><a class="code" href="classgeos_1_1planargraph_1_1Node.html#a11a8a01833a7f22dbdb892002e46e271">00109</a> <a class="code" href="classgeos_1_1planargraph_1_1DirectedEdgeStar.html" title="A sorted collection of DirectedEdge which leave a Node in a PlanarGraph.">DirectedEdgeStar</a>* <a class="code" href="classgeos_1_1planargraph_1_1Node.html#a11a8a01833a7f22dbdb892002e46e271" title="Returns the collection of DirectedEdges that leave this Node.">getOutEdges</a>() { <span class="keywordflow">return</span> deStar; }
<a name="l00110"></a>00110 <span class="keyword">const</span> <a class="code" href="classgeos_1_1planargraph_1_1DirectedEdgeStar.html" title="A sorted collection of DirectedEdge which leave a Node in a PlanarGraph.">DirectedEdgeStar</a>* getOutEdges()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> deStar; }
<a name="l00111"></a>00111
<a name="l00115"></a><a class="code" href="classgeos_1_1planargraph_1_1Node.html#a51d969287fd1db1a1787bc302cf868c8">00115</a> <span class="keywordtype">size_t</span> <a class="code" href="classgeos_1_1planargraph_1_1Node.html#a51d969287fd1db1a1787bc302cf868c8" title="Returns the number of edges around this Node.">getDegree</a>()<span class="keyword"> const </span>{
<a name="l00116"></a>00116 <span class="keywordflow">return</span> deStar->getDegree();
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118
<a name="l00124"></a><a class="code" href="classgeos_1_1planargraph_1_1Node.html#aef19b4aba1930caaff52b4a79c37e307">00124</a> <span class="keywordtype">int</span> <a class="code" href="classgeos_1_1planargraph_1_1Node.html#aef19b4aba1930caaff52b4a79c37e307" title="Returns the zero-based index of the given Edge, after sorting in ascending order by angle with the po...">getIndex</a>(<a class="code" href="classgeos_1_1planargraph_1_1Edge.html" title="Represents an undirected edge of a PlanarGraph.">Edge</a> *edge) {
<a name="l00125"></a>00125 <span class="keywordflow">return</span> deStar->getIndex(edge);
<a name="l00126"></a>00126 }
<a name="l00127"></a>00127
<a name="l00128"></a>00128 };
<a name="l00129"></a>00129
<a name="l00131"></a>00131 std::ostream& <a class="code" href="namespacegeos_1_1planargraph.html#a4288e7e185a32c17eec042b220e12966" title="Print a Edge.">operator<<</a>(std::ostream& os, <span class="keyword">const</span> Node& n);
<a name="l00132"></a>00132
<a name="l00133"></a>00133
<a name="l00135"></a>00135 <span class="comment">//typedef Node planarNode;</span>
<a name="l00136"></a>00136
<a name="l00137"></a>00137 } <span class="comment">// namespace geos::planargraph</span>
<a name="l00138"></a>00138 } <span class="comment">// namespace geos</span>
<a name="l00139"></a>00139
<a name="l00140"></a>00140 <span class="preprocessor">#endif // GEOS_PLANARGRAPH_NODE_H</span>
<a name="l00141"></a>00141 <span class="preprocessor"></span>
<a name="l00142"></a>00142 <span class="comment">/**********************************************************************</span>
<a name="l00143"></a>00143 <span class="comment"> * $Log$</span>
<a name="l00144"></a>00144 <span class="comment"> * Revision 1.3 2006/06/12 16:57:26 strk</span>
<a name="l00145"></a>00145 <span class="comment"> * Added note about ownership of return from getEdgesBetween()</span>
<a name="l00146"></a>00146 <span class="comment"> *</span>
<a name="l00147"></a>00147 <span class="comment"> * Revision 1.2 2006/06/12 10:49:43 strk</span>
<a name="l00148"></a>00148 <span class="comment"> * unsigned int => size_t</span>
<a name="l00149"></a>00149 <span class="comment"> *</span>
<a name="l00150"></a>00150 <span class="comment"> * Revision 1.1 2006/03/21 21:42:54 strk</span>
<a name="l00151"></a>00151 <span class="comment"> * planargraph.h header split, planargraph:: classes renamed to match JTS symbols</span>
<a name="l00152"></a>00152 <span class="comment"> *</span>
<a name="l00153"></a>00153 <span class="comment"> **********************************************************************/</span>
<a name="l00154"></a>00154
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