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class="header"> <div class="headertitle"> <div class="title">CascadedUnion.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://trac.osgeo.org/geos</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@keybit.net></span></div> <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> *</span></div> <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * This is free software; you can redistribute and/or modify it under</span></div> <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span></div> <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * by the Free Software Foundation. </span></div> <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * See the COPYING file for more information.</span></div> <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</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"> * Last port: ORIGINAL WORK, generalization of CascadedPolygonUnion</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"> **********************************************************************/</span></div> <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div> <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#ifndef GEOS_OP_UNION_CASCADEDUNION_H</span></div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor"></span><span class="preprocessor">#define GEOS_OP_UNION_CASCADEDUNION_H</span></div> <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <geos/export.h></span></div> <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <vector></span></div> <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <algorithm></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 "GeometryListHolder.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="comment">// Forward declarations</span></div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">namespace </span>geos {</div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">namespace </span>geom {</div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">class </span>GeometryFactory;</div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">class </span>Geometry;</div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">class </span>Geometry;</div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">class </span>Envelope;</div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  }</div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">namespace </span>index {</div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">namespace </span>strtree {</div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">class </span>ItemsList;</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>  }</div> <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> }</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">namespace </span>geos {</div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">namespace </span>operation { <span class="comment">// geos::operation</span></div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">namespace </span>geounion { <span class="comment">// geos::operation::geounion</span></div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div> <div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1geounion_1_1CascadedUnion.html"> 55</a></span> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1operation_1_1geounion_1_1CascadedUnion.html">CascadedUnion</a> </div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> {</div> <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">private</span>:</div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">const</span> std::vector<geom::Geometry*>* inputGeoms;</div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</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="l00060"></a><span class="lineno"> 60</span> </div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</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="l00069"></a><span class="lineno"> 69</span> </div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keyword">public</span>:</div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="classgeos_1_1operation_1_1geounion_1_1CascadedUnion.html">CascadedUnion</a>();</div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">static</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* Union(std::vector<geom::Geometry*>* geoms);</div> <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div> <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">template</span> <<span class="keyword">class</span> T></div> <div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1geounion_1_1CascadedUnion.html#a077ba2d66f993b50dcd3b8e93f204266"> 89</a></span>  <span class="keyword">static</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* <a class="code" href="classgeos_1_1operation_1_1geounion_1_1CascadedUnion.html#a077ba2d66f993b50dcd3b8e93f204266">Union</a>(T start, T end)</div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  {</div> <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  std::vector<geom::Geometry*> polys;</div> <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">for</span> (T i=start; i!=end; ++i) {</div> <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* p = <span class="keyword">dynamic_cast<</span><span class="keyword">const </span><a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>*<span class="keyword">></span>(*i);</div> <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  polys.push_back(const_cast<geom::Geometry*>(p));</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="keywordflow">return</span> Union(&polys);</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> </div> <div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1geounion_1_1CascadedUnion.html#a7590b6ba8a1a171032c033412dc19cdd"> 106</a></span>  <a class="code" href="classgeos_1_1operation_1_1geounion_1_1CascadedUnion.html#a7590b6ba8a1a171032c033412dc19cdd">CascadedUnion</a>(<span class="keyword">const</span> std::vector<geom::Geometry*>* geoms)</div> <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  : inputGeoms(geoms),</div> <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  geomFactory(NULL)</div> <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  {}</div> <div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* Union();</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">private</span>:</div> <div class="line"><a name="l00120"></a><span class="lineno"> 120</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="l00121"></a><span class="lineno"> 121</span> </div> <div class="line"><a name="l00127"></a><span class="lineno"> 127</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="l00128"></a><span class="lineno"> 128</span> </div> <div class="line"><a name="l00138"></a><span class="lineno"> 138</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="l00139"></a><span class="lineno"> 139</span>  std::size_t end);</div> <div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div> <div class="line"><a name="l00148"></a><span class="lineno"> 148</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="l00149"></a><span class="lineno"> 149</span> </div> <div class="line"><a name="l00159"></a><span class="lineno"> 159</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="l00160"></a><span class="lineno"> 160</span> </div> <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* unionOptimized(<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="l00162"></a><span class="lineno"> 162</span> </div> <div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* unionUsingEnvelopeIntersection(<a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* g0, </div> <div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* g1, <a class="code" href="classgeos_1_1geom_1_1Envelope.html">geom::Envelope</a> <span class="keyword">const</span>& common);</div> <div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div> <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* extractByEnvelope(<a class="code" href="classgeos_1_1geom_1_1Envelope.html">geom::Envelope</a> <span class="keyword">const</span>& env, </div> <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* geom, std::vector<geom::Geometry*>& disjointGeoms);</div> <div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div> <div class="line"><a name="l00192"></a><span class="lineno"> 192</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="l00193"></a><span class="lineno"> 193</span> };</div> <div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div> <div class="line"><a name="l00195"></a><span class="lineno"> 195</span> } <span class="comment">// namespace geos::operation::union</span></div> <div class="line"><a name="l00196"></a><span class="lineno"> 196</span> } <span class="comment">// namespace geos::operation</span></div> <div class="line"><a name="l00197"></a><span class="lineno"> 197</span> } <span class="comment">// namespace geos</span></div> <div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div> <div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="preprocessor">#endif</span></div> <div class="ttc" id="classgeos_1_1geom_1_1Envelope_html"><div class="ttname"><a href="classgeos_1_1geom_1_1Envelope.html">geos::geom::Envelope</a></div><div class="ttdoc">An Envelope defines a rectangulare region of the 2D coordinate plane. </div><div class="ttdef"><b>Definition:</b> Envelope.h:53</div></div> <div class="ttc" id="classgeos_1_1operation_1_1geounion_1_1CascadedUnion_html_a077ba2d66f993b50dcd3b8e93f204266"><div class="ttname"><a href="classgeos_1_1operation_1_1geounion_1_1CascadedUnion.html#a077ba2d66f993b50dcd3b8e93f204266">geos::operation::geounion::CascadedUnion::Union</a></div><div class="ttdeci">static geom::Geometry * Union(T start, T end)</div><div class="ttdef"><b>Definition:</b> CascadedUnion.h:89</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:167</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_1geounion_1_1CascadedUnion_html_a7590b6ba8a1a171032c033412dc19cdd"><div class="ttname"><a href="classgeos_1_1operation_1_1geounion_1_1CascadedUnion.html#a7590b6ba8a1a171032c033412dc19cdd">geos::operation::geounion::CascadedUnion::CascadedUnion</a></div><div class="ttdeci">CascadedUnion(const std::vector< geom::Geometry * > *geoms)</div><div class="ttdef"><b>Definition:</b> CascadedUnion.h:106</div></div> <div class="ttc" id="classgeos_1_1operation_1_1geounion_1_1CascadedUnion_html"><div class="ttname"><a href="classgeos_1_1operation_1_1geounion_1_1CascadedUnion.html">geos::operation::geounion::CascadedUnion</a></div><div class="ttdoc">Provides an efficient method of unioning a collection of Geometries. </div><div class="ttdef"><b>Definition:</b> CascadedUnion.h:55</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 href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.5 </small></address> </body> </html>