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class="header"> <div class="headertitle"> <div class="title">PolygonizeGraph.h</div> </div> </div><!--header--> <div class="contents"> <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/**********************************************************************</span></div> <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> *</span></div> <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * GEOS - Geometry Engine Open Source</span></div> <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * http://geos.osgeo.org</span></div> <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div> <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Copyright (C) 2006 Refractions Research Inc.</span></div> <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Copyright (C) 2001-2002 Vivid Solutions Inc.</span></div> <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div> <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * This is free software; you can redistribute and/or modify it under</span></div> <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span></div> <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * by the Free Software Foundation. </span></div> <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * See the COPYING file for more information.</span></div> <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div> <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> **********************************************************************</span></div> <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div> <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * Last port: operation/polygonize/PolygonizeGraph.java rev. 6/138 (JTS-1.10)</span></div> <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> *</span></div> <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> **********************************************************************/</span></div> <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#ifndef GEOS_OP_POLYGONIZE_POLYGONIZEGRAPH_H</span></div> <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor"></span><span class="preprocessor">#define GEOS_OP_POLYGONIZE_POLYGONIZEGRAPH_H</span></div> <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <geos/export.h></span></div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div> <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <geos/planargraph/PlanarGraph.h></span> <span class="comment">// for inheritance</span></div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <vector></span></div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div> <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"></span><span class="preprocessor">#pragma warning(push)</span></div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"></span><span class="preprocessor">#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class</span></div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// Forward declarations</span></div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">namespace </span>geos {</div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">namespace </span>geom { </div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">class </span>LineString;</div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">class </span>GeometryFactory;</div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">class </span>Coordinate;</div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">class </span>CoordinateSequence;</div> <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  }</div> <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">namespace </span>planargraph { </div> <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">class </span>Node;</div> <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">class </span>Edge;</div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">class </span>DirectedEdge;</div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  }</div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">namespace </span>operation { </div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">namespace </span>polygonize {</div> <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">class </span>EdgeRing;</div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">class </span>PolygonizeDirectedEdge;</div> <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  }</div> <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  }</div> <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> }</div> <div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">namespace </span>geos {</div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">namespace </span>operation { <span class="comment">// geos::operation</span></div> <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">namespace </span>polygonize { <span class="comment">// geos::operation::polygonize</span></div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div> <div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1polygonize_1_1PolygonizeGraph.html"> 69</a></span> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1operation_1_1polygonize_1_1PolygonizeGraph.html">PolygonizeGraph</a>: <span class="keyword">public</span> <a class="code" href="classgeos_1_1planargraph_1_1PlanarGraph.html">planargraph::PlanarGraph</a> {</div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="keyword">public</span>:</div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div> <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> deleteAllEdges(<a class="code" href="classgeos_1_1planargraph_1_1Node.html">planargraph::Node</a> *node);</div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div> <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="classgeos_1_1operation_1_1polygonize_1_1PolygonizeGraph.html">PolygonizeGraph</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1GeometryFactory.html">geom::GeometryFactory</a> *newFactory);</div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div> <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  ~<a class="code" href="classgeos_1_1operation_1_1polygonize_1_1PolygonizeGraph.html">PolygonizeGraph</a>();</div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div> <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordtype">void</span> addEdge(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1LineString.html">geom::LineString</a> *line);</div> <div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div> <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">void</span> getEdgeRings(std::vector<EdgeRing*>& edgeRingList);</div> <div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordtype">void</span> deleteCutEdges(std::vector<const geom::LineString*> &cutLines);</div> <div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div> <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordtype">void</span> deleteDangles(std::vector<const geom::LineString*> &dangleLines);</div> <div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div> <div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="keyword">private</span>:</div> <div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div> <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">static</span> <span class="keywordtype">int</span> getDegreeNonDeleted(<a class="code" href="classgeos_1_1planargraph_1_1Node.html">planargraph::Node</a> *node);</div> <div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div> <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keyword">static</span> <span class="keywordtype">int</span> getDegree(<a class="code" href="classgeos_1_1planargraph_1_1Node.html">planargraph::Node</a> *node, <span class="keywordtype">long</span> label);</div> <div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div> <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1GeometryFactory.html">geom::GeometryFactory</a> *factory;</div> <div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div> <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <a class="code" href="classgeos_1_1planargraph_1_1Node.html">planargraph::Node</a>* getNode(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& pt);</div> <div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div> <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordtype">void</span> computeNextCWEdges();</div> <div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div> <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordtype">void</span> convertMaximalToMinimalEdgeRings(</div> <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  std::vector<PolygonizeDirectedEdge*> &ringEdges);</div> <div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div> <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> findIntersectionNodes( <a class="code" href="classgeos_1_1operation_1_1polygonize_1_1PolygonizeDirectedEdge.html">PolygonizeDirectedEdge</a> *startDE,</div> <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordtype">long</span> label, std::vector<planargraph::Node*>& intNodes</div> <div class="line"><a name="l00169"></a><span class="lineno"> 169</span> );</div> <div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div> <div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> findLabeledEdgeRings(</div> <div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  std::vector<planargraph::DirectedEdge*> &dirEdgesIn,</div> <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  std::vector<PolygonizeDirectedEdge*> &dirEdgesOut);</div> <div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div> <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> label(std::vector<planargraph::DirectedEdge*> &dirEdges, <span class="keywordtype">long</span> label);</div> <div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div> <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> computeNextCWEdges(<a class="code" href="classgeos_1_1planargraph_1_1Node.html">planargraph::Node</a> *node);</div> <div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div> <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> computeNextCCWEdges(<a class="code" href="classgeos_1_1planargraph_1_1Node.html">planargraph::Node</a> *node, <span class="keywordtype">long</span> label);</div> <div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div> <div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> findDirEdgesInRing(<a class="code" href="classgeos_1_1operation_1_1polygonize_1_1PolygonizeDirectedEdge.html">PolygonizeDirectedEdge</a> *startDE,</div> <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  std::vector<planargraph::DirectedEdge*>& edgesInRing);</div> <div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div> <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <a class="code" href="classgeos_1_1operation_1_1polygonize_1_1EdgeRing.html">EdgeRing</a>* findEdgeRing(<a class="code" href="classgeos_1_1operation_1_1polygonize_1_1PolygonizeDirectedEdge.html">PolygonizeDirectedEdge</a> *startDE);</div> <div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div> <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="comment">/* Tese are for memory management */</span></div> <div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  std::vector<planargraph::Edge *> newEdges;</div> <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  std::vector<planargraph::DirectedEdge *> newDirEdges;</div> <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  std::vector<planargraph::Node *> newNodes;</div> <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  std::vector<EdgeRing *> newEdgeRings;</div> <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  std::vector<geom::CoordinateSequence *> newCoords;</div> <div class="line"><a name="l00218"></a><span class="lineno"> 218</span> };</div> <div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div> <div class="line"><a name="l00220"></a><span class="lineno"> 220</span> } <span class="comment">// namespace geos::operation::polygonize</span></div> <div class="line"><a name="l00221"></a><span class="lineno"> 221</span> } <span class="comment">// namespace geos::operation</span></div> <div class="line"><a name="l00222"></a><span class="lineno"> 222</span> } <span class="comment">// namespace geos</span></div> <div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div> <div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> <div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="preprocessor"></span><span class="preprocessor">#pragma warning(pop)</span></div> <div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> <div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="preprocessor">#endif // GEOS_OP_POLYGONIZE_POLYGONIZEGRAPH_H</span></div> <div class="ttc" id="classgeos_1_1geom_1_1Coordinate_html"><div class="ttname"><a href="classgeos_1_1geom_1_1Coordinate.html">geos::geom::Coordinate</a></div><div class="ttdoc">Coordinate is the lightweight class used to store coordinates. </div><div class="ttdef"><b>Definition:</b> Coordinate.h:60</div></div> <div class="ttc" id="classgeos_1_1operation_1_1polygonize_1_1PolygonizeGraph_html"><div class="ttname"><a href="classgeos_1_1operation_1_1polygonize_1_1PolygonizeGraph.html">geos::operation::polygonize::PolygonizeGraph</a></div><div class="ttdoc">Represents a planar graph of edges that can be used to compute a polygonization, and implements the a...</div><div class="ttdef"><b>Definition:</b> PolygonizeGraph.h:69</div></div> <div class="ttc" id="classgeos_1_1geom_1_1LineString_html"><div class="ttname"><a href="classgeos_1_1geom_1_1LineString.html">geos::geom::LineString</a></div><div class="ttdef"><b>Definition:</b> LineString.h:70</div></div> <div class="ttc" id="classgeos_1_1operation_1_1polygonize_1_1PolygonizeDirectedEdge_html"><div class="ttname"><a href="classgeos_1_1operation_1_1polygonize_1_1PolygonizeDirectedEdge.html">geos::operation::polygonize::PolygonizeDirectedEdge</a></div><div class="ttdoc">A DirectedEdge of a PolygonizeGraph, which represents an edge of a polygon formed by the graph...</div><div class="ttdef"><b>Definition:</b> PolygonizeDirectedEdge.h:54</div></div> <div class="ttc" id="classgeos_1_1geom_1_1GeometryFactory_html"><div class="ttname"><a href="classgeos_1_1geom_1_1GeometryFactory.html">geos::geom::GeometryFactory</a></div><div class="ttdoc">Supplies a set of utility methods for building Geometry objects from CoordinateSequence or other Geom...</div><div class="ttdef"><b>Definition:</b> GeometryFactory.h:67</div></div> <div class="ttc" id="classgeos_1_1operation_1_1polygonize_1_1EdgeRing_html"><div class="ttname"><a href="classgeos_1_1operation_1_1polygonize_1_1EdgeRing.html">geos::operation::polygonize::EdgeRing</a></div><div class="ttdoc">Represents a ring of PolygonizeDirectedEdge which form a ring of a polygon. The ring may be either an...</div><div class="ttdef"><b>Definition:</b> operation/polygonize/EdgeRing.h:57</div></div> <div class="ttc" id="classgeos_1_1planargraph_1_1Node_html"><div class="ttname"><a href="classgeos_1_1planargraph_1_1Node.html">geos::planargraph::Node</a></div><div class="ttdoc">A node in a PlanarGraph is a location where 0 or more Edge meet. </div><div class="ttdef"><b>Definition:</b> planargraph/Node.h:45</div></div> <div class="ttc" id="classgeos_1_1planargraph_1_1PlanarGraph_html"><div class="ttname"><a href="classgeos_1_1planargraph_1_1PlanarGraph.html">geos::planargraph::PlanarGraph</a></div><div class="ttdoc">Represents a directed graph which is embeddable in a planar surface. </div><div class="ttdef"><b>Definition:</b> planargraph/PlanarGraph.h:60</div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.5 </small></address> </body> </html>