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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.5"/> <title>GEOS: Polygonizer.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">GEOS  <span id="projectnumber">3.8.0</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.5 --> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <div id="navrow2" class="tabs2"> <ul class="tablist"> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul> </div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="dir_c7abe0914a0ee2b00cd766c552eb2d19.html">include</a></li><li class="navelem"><a class="el" href="dir_165a26498f94b7fe2ccb32b9bb9b3ac5.html">geos</a></li><li class="navelem"><a class="el" href="dir_83502acdc91ead14a5b9a0c44f723726.html">operation</a></li><li class="navelem"><a class="el" href="dir_71746fe56dd8b8e3ecd90a39908d3a3c.html">polygonize</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">Polygonizer.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) 2010 Sandro Santilli <strk@kbt.io></span></div> <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Copyright (C) 2006 Refractions Research Inc.</span></div> <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * Copyright (C) 2001-2002 Vivid Solutions Inc.</span></div> <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div> <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * This is free software; you can redistribute and/or modify it under</span></div> <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span></div> <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * by the Free Software Foundation.</span></div> <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * See the COPYING file for more information.</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"> *</span></div> <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * Last port: operation/polygonize/Polygonizer.java 0b3c7e3eb0d3e</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> <span class="comment"> **********************************************************************/</span></div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div> <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#ifndef GEOS_OP_POLYGONIZE_POLYGONIZER_H</span></div> <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"></span><span class="preprocessor">#define GEOS_OP_POLYGONIZE_POLYGONIZER_H</span></div> <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <geos/export.h></span></div> <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <geos/geom/Polygon.h></span></div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <geos/geom/GeometryComponentFilter.h></span> <span class="comment">// for LineStringAdder inheritance</span></div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <geos/operation/polygonize/PolygonizeGraph.h></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">#include <memory></span></div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <vector></span></div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span><span class="preprocessor">#pragma warning(push)</span></div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</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="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">// Forward declarations</span></div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">namespace </span>geos {</div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">namespace </span>geom {</div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">class </span>Geometry;</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">class </span>LineString;</div> <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div> <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">class </span>Polygon;</div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> }</div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">namespace </span>operation {</div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">namespace </span>polygonize {</div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">class </span>EdgeRing;</div> <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> }</div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }</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> <span class="keyword">namespace </span>geos {</div> <div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">namespace </span>operation { <span class="comment">// geos::operation</span></div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">namespace </span>polygonize { <span class="comment">// geos::operation::polygonize</span></div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div> <div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html"> 83</a></span> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html">Polygonizer</a> {</div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="keyword">private</span>:</div> <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">class </span>GEOS_DLL LineStringAdder: <span class="keyword">public</span> <a class="code" href="classgeos_1_1geom_1_1GeometryComponentFilter.html">geom::GeometryComponentFilter</a> {</div> <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">public</span>:</div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html">Polygonizer</a>* pol;</div> <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keyword">explicit</span> LineStringAdder(<a class="code" href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html">Polygonizer</a>* p);</div> <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">//void filter_rw(geom::Geometry *g);</span></div> <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordtype">void</span> filter_ro(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* g) <span class="keyword">override</span>;</div> <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  };</div> <div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div> <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">// default factory</span></div> <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  LineStringAdder lineStringAdder;</div> <div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div> <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordtype">void</span> add(<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="l00105"></a><span class="lineno"> 105</span> </div> <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordtype">void</span> polygonize();</div> <div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div> <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> findValidRings(<span class="keyword">const</span> std::vector<EdgeRing*>& edgeRingList,</div> <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  std::vector<EdgeRing*>& validEdgeRingList,</div> <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  std::vector<std::unique_ptr<geom::LineString>>& invalidRingList);</div> <div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div> <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordtype">void</span> findShellsAndHoles(<span class="keyword">const</span> std::vector<EdgeRing*>& edgeRingList);</div> <div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordtype">void</span> findDisjointShells();</div> <div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div> <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> findOuterShells(std::vector<EdgeRing*>& shellList);</div> <div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div> <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">static</span> std::unique_ptr<std::vector<std::unique_ptr<geom::Polygon>>> extractPolygons(std::vector<EdgeRing*> & shellList, <span class="keywordtype">bool</span> includeAll);</div> <div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div> <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">bool</span> extractOnlyPolygonal;</div> <div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div> <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">protected</span>:</div> <div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div> <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  std::unique_ptr<PolygonizeGraph> graph;</div> <div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div> <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="comment">// initialize with empty collections, in case nothing is computed</span></div> <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  std::vector<const geom::LineString*> dangles;</div> <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  std::vector<const geom::LineString*> cutEdges;</div> <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  std::vector<std::unique_ptr<geom::LineString>> invalidRingLines;</div> <div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div> <div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  std::vector<EdgeRing*> holeList;</div> <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  std::vector<EdgeRing*> shellList;</div> <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  std::unique_ptr<std::vector<std::unique_ptr<geom::Polygon>>> polyList;</div> <div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div> <div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="keyword">public</span>:</div> <div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div> <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">explicit</span> <a class="code" href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html">Polygonizer</a>(<span class="keywordtype">bool</span> onlyPolygonal = <span class="keyword">false</span>);</div> <div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div> <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  ~<a class="code" href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html">Polygonizer</a>() = <span class="keywordflow">default</span>;</div> <div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div> <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordtype">void</span> add(std::vector<geom::Geometry*>* geomList);</div> <div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div> <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordtype">void</span> add(std::vector<const geom::Geometry*>* geomList);</div> <div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div> <div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordtype">void</span> add(<a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* g);</div> <div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div> <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordtype">void</span> add(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* g);</div> <div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div> <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  std::unique_ptr<std::vector<std::unique_ptr<geom::Polygon>>> getPolygons();</div> <div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div> <div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keyword">const</span> std::vector<const geom::LineString*>& getDangles();</div> <div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div> <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordtype">bool</span> hasDangles();</div> <div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div> <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keyword">const</span> std::vector<const geom::LineString*>& getCutEdges();</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>  <span class="keywordtype">bool</span> hasCutEdges();</div> <div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </div> <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keyword">const</span> std::vector<std::unique_ptr<geom::LineString>>& getInvalidRingLines();</div> <div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div> <div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordtype">bool</span> hasInvalidRingLines();</div> <div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div> <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordtype">bool</span> allInputsFormPolygons();</div> <div class="line"><a name="l00234"></a><span class="lineno"> 234</span> </div> <div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment">// This seems to be needed by GCC 2.95.4</span></div> <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keyword">friend</span> <span class="keyword">class </span>Polygonizer::LineStringAdder;</div> <div class="line"><a name="l00237"></a><span class="lineno"> 237</span> };</div> <div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div> <div class="line"><a name="l00239"></a><span class="lineno"> 239</span> } <span class="comment">// namespace geos::operation::polygonize</span></div> <div class="line"><a name="l00240"></a><span class="lineno"> 240</span> } <span class="comment">// namespace geos::operation</span></div> <div class="line"><a name="l00241"></a><span class="lineno"> 241</span> } <span class="comment">// namespace geos</span></div> <div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div> <div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> <div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="preprocessor"></span><span class="preprocessor">#pragma warning(pop)</span></div> <div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> <div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="preprocessor">#endif // GEOS_OP_POLYGONIZE_POLYGONIZER_H</span></div> <div class="ttc" id="classgeos_1_1operation_1_1polygonize_1_1Polygonizer_html"><div class="ttname"><a href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html">geos::operation::polygonize::Polygonizer</a></div><div class="ttdoc">Polygonizes a set of Geometrys which contain linework that represents the edges of a planar graph...</div><div class="ttdef"><b>Definition:</b> Polygonizer.h:83</div></div> <div class="ttc" id="classgeos_1_1geom_1_1Geometry_html"><div class="ttname"><a href="classgeos_1_1geom_1_1Geometry.html">geos::geom::Geometry</a></div><div class="ttdoc">Basic implementation of Geometry, constructed and destructed by GeometryFactory. </div><div class="ttdef"><b>Definition:</b> Geometry.h:188</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:68</div></div> <div class="ttc" id="classgeos_1_1geom_1_1GeometryComponentFilter_html"><div class="ttname"><a href="classgeos_1_1geom_1_1GeometryComponentFilter.html">geos::geom::GeometryComponentFilter</a></div><div class="ttdef"><b>Definition:</b> GeometryComponentFilter.h:43</div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a 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