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<a href="MonotoneChainEdge_8h.html">Go to the documentation of this file.</a><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) 2005-2006 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> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#ifndef GEOS_GEOMGRAPH_INDEX_MONOTONECHAINEDGE_H</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#define GEOS_GEOMGRAPH_INDEX_MONOTONECHAINEDGE_H</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">#include <<a class="code" href="export_8h.html">geos/export.h</a>></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <<a class="code" href="Envelope_8h.html">geos/geom/Envelope.h</a>></span> <span class="comment">// for composition</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#ifdef _MSC_VER</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#pragma warning(push)</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</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="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#endif</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="comment">// Forward declarations</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">namespace </span><a class="code" href="namespacegeos.html">geos</a> {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">namespace </span>geom {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">class </span>CoordinateSequence;</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="keyword">namespace </span>geomgraph {</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">class </span>Edge;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">namespace </span>index {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">class </span>SegmentIntersector;</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> }</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">namespace </span><a class="code" href="namespacegeos.html">geos</a> {</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">namespace </span>geomgraph { <span class="comment">// geos::geomgraph</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">namespace </span>index { <span class="comment">// geos::geomgraph::index</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html"> 46</a></span> <span class="keyword">class </span><a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html">MonotoneChainEdge</a> {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">//MonotoneChainEdge();</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  ~<a class="code" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html">MonotoneChainEdge</a>() = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="code" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html">MonotoneChainEdge</a>(<a class="code" href="classgeos_1_1geomgraph_1_1Edge.html">Edge</a>* newE);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html">geom::CoordinateSequence</a>* getCoordinates();</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  std::vector<size_t>& getStartIndexes();</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">double</span> getMinX(<span class="keywordtype">size_t</span> chainIndex);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">double</span> getMaxX(<span class="keywordtype">size_t</span> chainIndex);</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordtype">void</span> computeIntersects(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html">MonotoneChainEdge</a>& mce,</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="classgeos_1_1geomgraph_1_1index_1_1SegmentIntersector.html">SegmentIntersector</a>& si);</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>  <span class="keywordtype">void</span> computeIntersectsForChain(<span class="keywordtype">size_t</span> chainIndex0,</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html">MonotoneChainEdge</a>& mce, <span class="keywordtype">size_t</span> chainIndex1,</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="classgeos_1_1geomgraph_1_1index_1_1SegmentIntersector.html">SegmentIntersector</a>& si);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html#ab4a61812a0f16ef809d99a450d81a1b0"> 64</a></span>  <a class="code" href="classgeos_1_1geomgraph_1_1Edge.html">Edge</a>* <a class="code" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html#ab4a61812a0f16ef809d99a450d81a1b0">e</a>;</div><div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html#af130edf4f767354bd3f3a9ef5e465cff"> 65</a></span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html">geom::CoordinateSequence</a>* <a class="code" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html#af130edf4f767354bd3f3a9ef5e465cff">pts</a>; <span class="comment">// cache a reference to the coord array, for efficiency</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">// the lists of start/end indexes of the monotone chains.</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">// Includes the end point of the edge as a sentinel</span></div><div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html#ad042d37c4656eb5e8c014eb44746e4be"> 68</a></span>  std::vector<size_t> <a class="code" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html#ad042d37c4656eb5e8c014eb44746e4be">startIndex</a>;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">// these envelopes are created once and reused</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">void</span> computeIntersectsForChain(<span class="keywordtype">size_t</span> start0, <span class="keywordtype">size_t</span> end0,</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html">MonotoneChainEdge</a>& mce,</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">size_t</span> start1, <span class="keywordtype">size_t</span> end1,</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <a class="code" href="classgeos_1_1geomgraph_1_1index_1_1SegmentIntersector.html">SegmentIntersector</a>& ei);</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>  <span class="keywordtype">bool</span> overlaps(<span class="keywordtype">size_t</span> start0, <span class="keywordtype">size_t</span> end0, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html">MonotoneChainEdge</a>& mce, <span class="keywordtype">size_t</span> start1, <span class="keywordtype">size_t</span> end1);</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> };</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> } <span class="comment">// namespace geos.geomgraph.index</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> } <span class="comment">// namespace geos.geomgraph</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> } <span class="comment">// namespace geos</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor">#ifdef _MSC_VER</span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#pragma warning(pop)</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div><div class="ttc" id="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge_html"><div class="ttname"><a href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html">geos::geomgraph::index::MonotoneChainEdge</a></div><div class="ttdoc">MonotoneChains are a way of partitioning the segments of an edge to allow for fast searching of inter...</div><div class="ttdef"><b>Definition:</b> <a href="MonotoneChainEdge_8h_source.html#l00046">MonotoneChainEdge.h:46</a></div></div>
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<div class="ttc" id="export_8h_html_ae36df939090171f6e9a28a8cb6254fea"><div class="ttname"><a href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a></div><div class="ttdeci">#define GEOS_DLL</div><div class="ttdef"><b>Definition:</b> <a href="export_8h_source.html#l00028">export.h:28</a></div></div>
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<div class="ttc" id="export_8h_html"><div class="ttname"><a href="export_8h.html">export.h</a></div></div>
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<div class="ttc" id="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge_html_ab4a61812a0f16ef809d99a450d81a1b0"><div class="ttname"><a href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html#ab4a61812a0f16ef809d99a450d81a1b0">geos::geomgraph::index::MonotoneChainEdge::e</a></div><div class="ttdeci">Edge * e</div><div class="ttdef"><b>Definition:</b> <a href="MonotoneChainEdge_8h_source.html#l00064">MonotoneChainEdge.h:64</a></div></div>
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<div class="ttc" id="classgeos_1_1geomgraph_1_1index_1_1SegmentIntersector_html"><div class="ttname"><a href="classgeos_1_1geomgraph_1_1index_1_1SegmentIntersector.html">geos::geomgraph::index::SegmentIntersector</a></div><div class="ttdoc">Computes the intersection of line segments, and adds the intersection to the edges containing the seg...</div><div class="ttdef"><b>Definition:</b> <a href="geomgraph_2index_2SegmentIntersector_8h_source.html#l00047">geomgraph/index/SegmentIntersector.h:47</a></div></div>
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<div class="ttc" id="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge_html_ad042d37c4656eb5e8c014eb44746e4be"><div class="ttname"><a href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html#ad042d37c4656eb5e8c014eb44746e4be">geos::geomgraph::index::MonotoneChainEdge::startIndex</a></div><div class="ttdeci">std::vector< size_t > startIndex</div><div class="ttdef"><b>Definition:</b> <a href="MonotoneChainEdge_8h_source.html#l00068">MonotoneChainEdge.h:68</a></div></div>
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<div class="ttc" id="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge_html_af130edf4f767354bd3f3a9ef5e465cff"><div class="ttname"><a href="classgeos_1_1geomgraph_1_1index_1_1MonotoneChainEdge.html#af130edf4f767354bd3f3a9ef5e465cff">geos::geomgraph::index::MonotoneChainEdge::pts</a></div><div class="ttdeci">const geom::CoordinateSequence * pts</div><div class="ttdef"><b>Definition:</b> <a href="MonotoneChainEdge_8h_source.html#l00065">MonotoneChainEdge.h:65</a></div></div>
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<div class="ttc" id="namespacegeos_html"><div class="ttname"><a href="namespacegeos.html">geos</a></div><div class="ttdoc">Basic namespace for all GEOS functionalities. </div><div class="ttdef"><b>Definition:</b> <a href="IndexedNestedRingTester_8h_source.html#l00026">IndexedNestedRingTester.h:26</a></div></div>
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<div class="ttc" id="Envelope_8h_html"><div class="ttname"><a href="Envelope_8h.html">Envelope.h</a></div></div>
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<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> <a href="CoordinateSequence_8h_source.html#l00058">CoordinateSequence.h:58</a></div></div>
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<div class="ttc" id="classgeos_1_1geomgraph_1_1Edge_html"><div class="ttname"><a href="classgeos_1_1geomgraph_1_1Edge.html">geos::geomgraph::Edge</a></div><div class="ttdef"><b>Definition:</b> <a href="geomgraph_2Edge_8h_source.html#l00066">geomgraph/Edge.h:66</a></div></div>
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