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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_6699548cc4400c7fa80e406618ab843c.html">union</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">CascadedPolygonUnion.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) 2011 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"> *</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/union/CascadedPolygonUnion.java r487 (JTS-1.12+)</span></div> <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * Includes custom code to deal with https://trac.osgeo.org/geos/ticket/837</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_UNION_CASCADEDPOLYGONUNION_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_UNION_CASCADEDPOLYGONUNION_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> </div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <vector></span></div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <algorithm></span></div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <memory></span></div> <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "GeometryListHolder.h"</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="comment">// Forward declarations</span></div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">namespace </span>geos {</div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">namespace </span>geom {</div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">class </span>GeometryFactory;</div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">class </span>Geometry;</div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">class </span>Polygon;</div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">class </span>MultiPolygon;</div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">class </span>Envelope;</div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> }</div> <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">namespace </span>index {</div> <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">namespace </span>strtree {</div> <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">class </span>ItemsList;</div> <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> }</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> }</div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">namespace </span>geos {</div> <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">namespace </span>operation { <span class="comment">// geos::operation</span></div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">namespace </span>geounion { <span class="comment">// geos::operation::geounion</span></div> <div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div> <div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion.html"> 68</a></span> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion.html">CascadedPolygonUnion</a> {</div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keyword">private</span>:</div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  std::vector<geom::Polygon*>* inputPolys;</div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="classgeos_1_1geom_1_1GeometryFactory.html">geom::GeometryFactory</a> <span class="keyword">const</span>* geomFactory;</div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div> <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">static</span> <span class="keywordtype">int</span> <span class="keyword">const</span> STRTREE_NODE_CAPACITY = 4;</div> <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div> <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keyword">static</span> std::unique_ptr<geom::Geometry> restrictToPolygons(std::unique_ptr<geom::Geometry> g);</div> <div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div> <div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">public</span>:</div> <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion.html">CascadedPolygonUnion</a>();</div> <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div> <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keyword">static</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* Union(std::vector<geom::Polygon*>* polys);</div> <div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div> <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">template</span> <<span class="keyword">class</span> T></div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">static</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>*</div> <div class="line"><a name="l00118"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion.html#aa936f8975b4d1d662efa1e60a469d217"> 118</a></span>  <a class="code" href="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion.html#aa936f8975b4d1d662efa1e60a469d217">Union</a>(T start, T end)</div> <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  {</div> <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  std::vector<geom::Polygon*> polys;</div> <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">for</span>(T i = start; i != end; ++i) {</div> <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Polygon.html">geom::Polygon</a>* p = <span class="keyword">dynamic_cast<</span><span class="keyword">const </span><a class="code" href="classgeos_1_1geom_1_1Polygon.html">geom::Polygon</a>*<span class="keyword">></span>(*i);</div> <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  polys.push_back(const_cast<geom::Polygon*>(p));</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="keywordflow">return</span> Union(&polys);</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> </div> <div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keyword">static</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* Union(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1MultiPolygon.html">geom::MultiPolygon</a>* polys);</div> <div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div> <div class="line"><a name="l00143"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion.html#a056d0965591c58d015e1bc5b924a9999"> 143</a></span>  <a class="code" href="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion.html#a056d0965591c58d015e1bc5b924a9999">CascadedPolygonUnion</a>(std::vector<geom::Polygon*>* polys)</div> <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  : inputPolys(polys),</div> <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  geomFactory(nullptr)</div> <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  {}</div> <div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div> <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* Union();</div> <div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div> <div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="keyword">private</span>:</div> <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* unionTree(index::strtree::ItemsList* geomTree);</div> <div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div> <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* binaryUnion(<a class="code" href="classgeos_1_1operation_1_1geounion_1_1GeometryListHolder.html">GeometryListHolder</a>* geoms);</div> <div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div> <div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* binaryUnion(<a class="code" href="classgeos_1_1operation_1_1geounion_1_1GeometryListHolder.html">GeometryListHolder</a>* geoms, std::size_t start,</div> <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  std::size_t end);</div> <div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div> <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <a class="code" href="classgeos_1_1operation_1_1geounion_1_1GeometryListHolder.html">GeometryListHolder</a>* reduceToGeometries(index::strtree::ItemsList* geomTree);</div> <div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div> <div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* unionSafe(<a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* g0, <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* g1);</div> <div class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div> <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keyword">static</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* unionActual(<a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* g0, <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* g1);</div> <div class="line"><a name="l00206"></a><span class="lineno"> 206</span> };</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="comment">// namespace geos::operation::union</span></div> <div class="line"><a name="l00209"></a><span class="lineno"> 209</span> } <span class="comment">// namespace geos::operation</span></div> <div class="line"><a name="l00210"></a><span class="lineno"> 210</span> } <span class="comment">// namespace geos</span></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="preprocessor">#endif</span></div> <div class="ttc" id="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion_html_a056d0965591c58d015e1bc5b924a9999"><div class="ttname"><a href="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion.html#a056d0965591c58d015e1bc5b924a9999">geos::operation::geounion::CascadedPolygonUnion::CascadedPolygonUnion</a></div><div class="ttdeci">CascadedPolygonUnion(std::vector< geom::Polygon * > *polys)</div><div class="ttdoc">Creates a new instance to union the given collection of Geometrys. </div><div class="ttdef"><b>Definition:</b> CascadedPolygonUnion.h:143</div></div> <div class="ttc" id="classgeos_1_1geom_1_1MultiPolygon_html"><div class="ttname"><a href="classgeos_1_1geom_1_1MultiPolygon.html">geos::geom::MultiPolygon</a></div><div class="ttdoc">Models a collection of Polygons. </div><div class="ttdef"><b>Definition:</b> MultiPolygon.h:59</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_1Polygon_html"><div class="ttname"><a href="classgeos_1_1geom_1_1Polygon.html">geos::geom::Polygon</a></div><div class="ttdoc">Represents a linear polygon, which may include holes. </div><div class="ttdef"><b>Definition:</b> Polygon.h:64</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:68</div></div> <div class="ttc" id="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion_html_aa936f8975b4d1d662efa1e60a469d217"><div class="ttname"><a href="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion.html#aa936f8975b4d1d662efa1e60a469d217">geos::operation::geounion::CascadedPolygonUnion::Union</a></div><div class="ttdeci">static geom::Geometry * Union(T start, T end)</div><div class="ttdoc">Computes the union of a set of polygonal Geometrys. </div><div class="ttdef"><b>Definition:</b> CascadedPolygonUnion.h:118</div></div> <div class="ttc" id="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion_html"><div class="ttname"><a href="classgeos_1_1operation_1_1geounion_1_1CascadedPolygonUnion.html">geos::operation::geounion::CascadedPolygonUnion</a></div><div class="ttdoc">Provides an efficient method of unioning a collection of polygonal geometries. </div><div class="ttdef"><b>Definition:</b> CascadedPolygonUnion.h:68</div></div> <div class="ttc" id="classgeos_1_1operation_1_1geounion_1_1GeometryListHolder_html"><div class="ttname"><a href="classgeos_1_1operation_1_1geounion_1_1GeometryListHolder.html">geos::operation::geounion::GeometryListHolder</a></div><div class="ttdoc">Helper class holding Geometries, part of which are held by reference others are held exclusively...</div><div class="ttdef"><b>Definition:</b> GeometryListHolder.h:34</div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a 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