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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: PointLocator.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">3.5.0</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by 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<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) 2005-2011 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> <span class="comment"> *</span></div> <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * Last port: algorithm/PointLocator.java r320 (JTS-1.12)</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> <span class="comment"> **********************************************************************/</span></div> <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#ifndef GEOS_ALGORITHM_POINTLOCATOR_H</span></div> <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor"></span><span class="preprocessor">#define GEOS_ALGORITHM_POINTLOCATOR_H</span></div> <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <geos/export.h></span></div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <geos/geom/Location.h></span> <span class="comment">// for inlines</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>Coordinate;</div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">class </span>Geometry;</div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">class </span>LinearRing;</div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">class </span>LineString;</div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">class </span>Polygon;</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> <span class="keyword">namespace </span>geos {</div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">namespace </span>algorithm { <span class="comment">// geos::algorithm</span></div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div> <div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1PointLocator.html"> 57</a></span> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1algorithm_1_1PointLocator.html">PointLocator</a> {</div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="keyword">public</span>:</div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="classgeos_1_1algorithm_1_1PointLocator.html">PointLocator</a>() {}</div> <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  ~<a class="code" href="classgeos_1_1algorithm_1_1PointLocator.html">PointLocator</a>() {}</div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordtype">int</span> locate(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *geom);</div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div> <div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1PointLocator.html#aa1b29c8c5eb9d5a9e28a597e37de8601"> 82</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1algorithm_1_1PointLocator.html#aa1b29c8c5eb9d5a9e28a597e37de8601">intersects</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *geom) {</div> <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">return</span> locate(p, geom) != <a class="code" href="classgeos_1_1geom_1_1Location.html#a6d97442ce0c47a3e64498297ce6cd815a1c62217b98d57a6657beead2da9ea6d0">geom::Location::EXTERIOR</a>;</div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  }</div> <div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div> <div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keyword">private</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="keywordtype">bool</span> isIn; <span class="comment">// true if the point lies in or on any Geometry element</span></div> <div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordtype">int</span> numBoundaries; <span class="comment">// the number of sub-elements whose boundaries the point lies in</span></div> <div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div> <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordtype">void</span> computeLocation(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *geom);</div> <div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div> <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordtype">void</span> updateLocationInfo(<span class="keywordtype">int</span> loc);</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="keywordtype">int</span> locate(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1LineString.html">geom::LineString</a> *l);</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="keywordtype">int</span> locateInPolygonRing(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1LinearRing.html">geom::LinearRing</a> *ring);</div> <div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div> <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordtype">int</span> locate(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Polygon.html">geom::Polygon</a> *poly);</div> <div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </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::algorithm</span></div> <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> } <span class="comment">// namespace geos</span></div> <div class="line"><a name="l00106"></a><span class="lineno"> 106</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_ALGORITHM_POINTLOCATOR_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_1algorithm_1_1PointLocator_html_aa1b29c8c5eb9d5a9e28a597e37de8601"><div class="ttname"><a href="classgeos_1_1algorithm_1_1PointLocator.html#aa1b29c8c5eb9d5a9e28a597e37de8601">geos::algorithm::PointLocator::intersects</a></div><div class="ttdeci">bool intersects(const geom::Coordinate &p, const geom::Geometry *geom)</div><div class="ttdef"><b>Definition:</b> PointLocator.h:82</div></div> <div class="ttc" id="classgeos_1_1geom_1_1Location_html_a6d97442ce0c47a3e64498297ce6cd815a1c62217b98d57a6657beead2da9ea6d0"><div class="ttname"><a href="classgeos_1_1geom_1_1Location.html#a6d97442ce0c47a3e64498297ce6cd815a1c62217b98d57a6657beead2da9ea6d0">geos::geom::Location::EXTERIOR</a></div><div class="ttdef"><b>Definition:</b> Location.h:63</div></div> <div class="ttc" id="classgeos_1_1geom_1_1Coordinate_html"><div class="ttname"><a href="classgeos_1_1geom_1_1Coordinate.html">geos::geom::Coordinate</a></div><div class="ttdoc">Coordinate is the lightweight class used to store coordinates. </div><div class="ttdef"><b>Definition:</b> Coordinate.h:60</div></div> <div class="ttc" id="classgeos_1_1algorithm_1_1PointLocator_html"><div class="ttname"><a href="classgeos_1_1algorithm_1_1PointLocator.html">geos::algorithm::PointLocator</a></div><div class="ttdoc">Computes the topological relationship (Location) of a single point to a Geometry. ...</div><div class="ttdef"><b>Definition:</b> PointLocator.h:57</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_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:70</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:66</div></div> <div class="ttc" id="classgeos_1_1geom_1_1LinearRing_html"><div class="ttname"><a href="classgeos_1_1geom_1_1LinearRing.html">geos::geom::LinearRing</a></div><div class="ttdoc">Models an OGC SFS LinearRing. </div><div class="ttdef"><b>Definition:</b> LinearRing.h:57</div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a 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