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<h1>BufferSubgraph.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: BufferSubgraph.h 2559 2009-06-08 10:07:05Z 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) 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 <span class="comment"> *</span>
<a name="l00016"></a>00016 <span class="comment"> * Last port: operation/buffer/BufferSubgraph.java rev. 1.21 (JTS-1.10)</span>
<a name="l00017"></a>00017 <span class="comment"> *</span>
<a name="l00018"></a>00018 <span class="comment"> **********************************************************************/</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="preprocessor">#ifndef GEOS_OP_BUFFER_BUFFERSUBGRAPH_H</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_OP_BUFFER_BUFFERSUBGRAPH_H</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <geos/export.h></span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="preprocessor">#include <vector></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <set></span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="preprocessor">#include <geos/operation/buffer/RightmostEdgeFinder.h></span> <span class="comment">// for composition</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="comment">// Forward declarations</span>
<a name="l00031"></a>00031 <span class="keyword">namespace </span>geos {
<a name="l00032"></a>00032 <span class="keyword">namespace </span>geom {
<a name="l00033"></a>00033 <span class="keyword">class </span>Coordinate;
<a name="l00034"></a>00034 <span class="keyword">class </span>Envelope;
<a name="l00035"></a>00035 }
<a name="l00036"></a>00036 <span class="keyword">namespace </span>algorithm {
<a name="l00037"></a>00037 <span class="keyword">class </span>CGAlgorithms;
<a name="l00038"></a>00038 }
<a name="l00039"></a>00039 <span class="keyword">namespace </span>geomgraph {
<a name="l00040"></a>00040 <span class="keyword">class </span>DirectedEdge;
<a name="l00041"></a>00041 <span class="keyword">class </span>Node;
<a name="l00042"></a>00042 }
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="keyword">namespace </span>geos {
<a name="l00046"></a>00046 <span class="keyword">namespace </span>operation { <span class="comment">// geos.operation</span>
<a name="l00047"></a>00047 <span class="keyword">namespace </span>buffer { <span class="comment">// geos.operation.buffer</span>
<a name="l00048"></a>00048
<a name="l00057"></a><a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferSubgraph.html">00057</a> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferSubgraph.html" title="A connected subset of the graph of DirectedEdge and geomgraph::Node.">BufferSubgraph</a> {
<a name="l00058"></a>00058 <span class="keyword">private</span>:
<a name="l00059"></a>00059 <a class="code" href="classgeos_1_1operation_1_1buffer_1_1RightmostEdgeFinder.html" title="A RightmostEdgeFinder find the geomgraph::DirectedEdge in a list which has the highest coordinate...">RightmostEdgeFinder</a> finder;
<a name="l00060"></a>00060
<a name="l00061"></a>00061 std::vector<geomgraph::DirectedEdge*> dirEdgeList;
<a name="l00062"></a>00062
<a name="l00063"></a>00063 std::vector<geomgraph::Node*> nodes;
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a> *rightMostCoord;
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <a class="code" href="classgeos_1_1geom_1_1Envelope.html" title="An Envelope defines a rectangulare region of the 2D coordinate plane.">geom::Envelope</a> *env;
<a name="l00068"></a>00068
<a name="l00076"></a>00076 <span class="keywordtype">void</span> addReachable(geomgraph::Node *startNode);
<a name="l00077"></a>00077
<a name="l00079"></a>00079 <span class="comment">//</span>
<a name="l00083"></a>00083 <span class="comment"></span> <span class="keywordtype">void</span> add(geomgraph::Node* node, std::vector<geomgraph::Node*>* nodeStack);
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="keywordtype">void</span> clearVisitedEdges();
<a name="l00086"></a>00086
<a name="l00093"></a>00093 <span class="comment">// <FIX> MD - use iteration & queue rather than recursion, for speed and robustness</span>
<a name="l00094"></a>00094 <span class="keywordtype">void</span> computeDepths(<a class="code" href="classgeos_1_1geomgraph_1_1DirectedEdge.html" title="A directed EdgeEnd.">geomgraph::DirectedEdge</a> *startEdge);
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keywordtype">void</span> computeNodeDepth(geomgraph::Node *n);
<a name="l00097"></a>00097
<a name="l00098"></a>00098 <span class="keywordtype">void</span> copySymDepths(<a class="code" href="classgeos_1_1geomgraph_1_1DirectedEdge.html" title="A directed EdgeEnd.">geomgraph::DirectedEdge</a> *de);
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="keywordtype">bool</span> contains(std::set<geomgraph::Node*>& nodes, geomgraph::Node *node);
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="keyword">public</span>:
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="keyword">friend</span> std::ostream& operator<< (std::ostream& os, <span class="keyword">const</span> <a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferSubgraph.html" title="A connected subset of the graph of DirectedEdge and geomgraph::Node.">BufferSubgraph</a>& bs);
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferSubgraph.html" title="A connected subset of the graph of DirectedEdge and geomgraph::Node.">BufferSubgraph</a>();
<a name="l00107"></a>00107
<a name="l00108"></a>00108 ~<a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferSubgraph.html" title="A connected subset of the graph of DirectedEdge and geomgraph::Node.">BufferSubgraph</a>();
<a name="l00109"></a>00109
<a name="l00110"></a>00110 std::vector<geomgraph::DirectedEdge*>* getDirectedEdges();
<a name="l00111"></a>00111
<a name="l00112"></a>00112 std::vector<geomgraph::Node*>* getNodes();
<a name="l00113"></a>00113
<a name="l00117"></a>00117 <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>* getRightmostCoordinate();
<a name="l00118"></a>00118
<a name="l00127"></a>00127 <span class="keywordtype">void</span> create(geomgraph::Node *node);
<a name="l00128"></a>00128
<a name="l00129"></a>00129 <span class="keywordtype">void</span> computeDepth(<span class="keywordtype">int</span> outsideDepth);
<a name="l00130"></a>00130
<a name="l00142"></a>00142 <span class="keywordtype">void</span> findResultEdges();
<a name="l00143"></a>00143
<a name="l00158"></a>00158 <span class="keywordtype">int</span> compareTo(<a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferSubgraph.html" title="A connected subset of the graph of DirectedEdge and geomgraph::Node.">BufferSubgraph</a> *);
<a name="l00159"></a>00159
<a name="l00166"></a>00166 <a class="code" href="classgeos_1_1geom_1_1Envelope.html" title="An Envelope defines a rectangulare region of the 2D coordinate plane.">geom::Envelope</a> *getEnvelope();
<a name="l00167"></a>00167 };
<a name="l00168"></a>00168
<a name="l00169"></a>00169 std::ostream& operator<< (std::ostream& os, <span class="keyword">const</span> <a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferSubgraph.html" title="A connected subset of the graph of DirectedEdge and geomgraph::Node.">BufferSubgraph</a>& bs);
<a name="l00170"></a>00170
<a name="l00171"></a>00171 <span class="comment">// INLINES</span>
<a name="l00172"></a>00172 <span class="keyword">inline</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>*
<a name="l00173"></a><a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferSubgraph.html#ad538dc7d77bf1734154a72f1e5e70efd">00173</a> <a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferSubgraph.html#ad538dc7d77bf1734154a72f1e5e70efd" title="Gets the rightmost coordinate in the edges of the subgraph.">BufferSubgraph::getRightmostCoordinate</a>() {<span class="keywordflow">return</span> rightMostCoord;}
<a name="l00174"></a>00174
<a name="l00175"></a>00175 <span class="keyword">inline</span> std::vector<geomgraph::Node*>*
<a name="l00176"></a>00176 BufferSubgraph::getNodes() { <span class="keywordflow">return</span> &nodes; }
<a name="l00177"></a>00177
<a name="l00178"></a>00178 <span class="keyword">inline</span> std::vector<geomgraph::DirectedEdge*>*
<a name="l00179"></a>00179 BufferSubgraph::getDirectedEdges() {
<a name="l00180"></a>00180 <span class="keywordflow">return</span> &dirEdgeList;
<a name="l00181"></a>00181 }
<a name="l00182"></a>00182
<a name="l00183"></a>00183 <span class="keywordtype">bool</span> BufferSubgraphGT(BufferSubgraph *first, BufferSubgraph *second);
<a name="l00184"></a>00184
<a name="l00185"></a>00185 } <span class="comment">// namespace geos::operation::buffer</span>
<a name="l00186"></a>00186 } <span class="comment">// namespace geos::operation</span>
<a name="l00187"></a>00187 } <span class="comment">// namespace geos</span>
<a name="l00188"></a>00188
<a name="l00189"></a>00189 <span class="preprocessor">#endif // ndef GEOS_OP_BUFFER_BUFFERSUBGRAPH_H</span>
<a name="l00190"></a>00190 <span class="preprocessor"></span>
<a name="l00191"></a>00191 <span class="comment">/**********************************************************************</span>
<a name="l00192"></a>00192 <span class="comment"> * $Log$</span>
<a name="l00193"></a>00193 <span class="comment"> * Revision 1.3 2006/03/15 11:45:06 strk</span>
<a name="l00194"></a>00194 <span class="comment"> * doxygen comments</span>
<a name="l00195"></a>00195 <span class="comment"> *</span>
<a name="l00196"></a>00196 <span class="comment"> * Revision 1.2 2006/03/14 14:16:52 strk</span>
<a name="l00197"></a>00197 <span class="comment"> * operator<< for BufferSubgraph, more debugging calls</span>
<a name="l00198"></a>00198 <span class="comment"> *</span>
<a name="l00199"></a>00199 <span class="comment"> * Revision 1.1 2006/03/14 00:19:40 strk</span>
<a name="l00200"></a>00200 <span class="comment"> * opBuffer.h split, streamlined headers in some (not all) files in operation/buffer/</span>
<a name="l00201"></a>00201 <span class="comment"> *</span>
<a name="l00202"></a>00202 <span class="comment"> **********************************************************************/</span>
<a name="l00203"></a>00203
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