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class="header"> <div class="headertitle"> <div class="title">MonotoneChainBuilder.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) 2001-2002 Vivid Solutions Inc.</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: index/chain/MonotoneChainBuilder.java r388 (JTS-1.12)</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_IDX_CHAIN_MONOTONECHAINBUILDER_H</span></div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor"></span><span class="preprocessor">#define GEOS_IDX_CHAIN_MONOTONECHAINBUILDER_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> <span class="preprocessor">#include <vector></span></div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <cstddef></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="comment">// Forward declarations</span></div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">namespace </span>geos {</div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">namespace </span>geom {</div> <div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">class </span>CoordinateSequence;</div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  }</div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">namespace </span>index { </div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">namespace </span>chain { </div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">class </span>MonotoneChain;</div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  }</div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  }</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> </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>index { <span class="comment">// geos::index</span></div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">namespace </span>chain { <span class="comment">// geos::index::chain</span></div> <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div> <div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="classgeos_1_1index_1_1chain_1_1MonotoneChainBuilder.html"> 48</a></span> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1index_1_1chain_1_1MonotoneChainBuilder.html">MonotoneChainBuilder</a> {</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> <span class="keyword">public</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>  <a class="code" href="classgeos_1_1index_1_1chain_1_1MonotoneChainBuilder.html">MonotoneChainBuilder</a>(){}</div> <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">static</span> std::vector<MonotoneChain*>* getChains(</div> <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html">geom::CoordinateSequence</a> *pts,</div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">void</span>* context);</div> <div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> getChains(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html">geom::CoordinateSequence</a> *pts,</div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">void</span>* context,</div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  std::vector<MonotoneChain*>& mcList);</div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">static</span> std::vector<MonotoneChain*>* getChains(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html">geom::CoordinateSequence</a> *pts)</div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  {</div> <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">return</span> getChains(pts, NULL);</div> <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  }</div> <div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> getChainStartIndices(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html">geom::CoordinateSequence</a>& pts,</div> <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  std::vector<std::size_t>& startIndexList);</div> <div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div> <div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keyword">private</span>:</div> <div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div> <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">static</span> std::size_t findChainEnd(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html">geom::CoordinateSequence</a>& pts,</div> <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  std::size_t start);</div> <div class="line"><a name="l00102"></a><span class="lineno"> 102</span> };</div> <div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div> <div class="line"><a name="l00104"></a><span class="lineno"> 104</span> } <span class="comment">// namespace geos::index::chain</span></div> <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> } <span class="comment">// namespace geos::index</span></div> <div class="line"><a name="l00106"></a><span class="lineno"> 106</span> } <span class="comment">// namespace geos</span></div> <div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div> <div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="preprocessor">#endif // GEOS_IDX_CHAIN_MONOTONECHAINBUILDER_H</span></div> <div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="preprocessor"></span></div> <div class="ttc" id="classgeos_1_1index_1_1chain_1_1MonotoneChainBuilder_html"><div class="ttname"><a href="classgeos_1_1index_1_1chain_1_1MonotoneChainBuilder.html">geos::index::chain::MonotoneChainBuilder</a></div><div class="ttdoc">Constructs MonotoneChains for sequences of Coordinates. </div><div class="ttdef"><b>Definition:</b> MonotoneChainBuilder.h:48</div></div> <div class="ttc" id="classgeos_1_1geom_1_1CoordinateSequence_html"><div class="ttname"><a href="classgeos_1_1geom_1_1CoordinateSequence.html">geos::geom::CoordinateSequence</a></div><div class="ttdoc">The internal representation of a list of coordinates inside a Geometry. </div><div class="ttdef"><b>Definition:</b> CoordinateSequence.h:59</div></div> </div><!-- fragment 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