<!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"/> <title>GEOS: RayCrossingCounter.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.7.1 --> <div class="navigation" id="top"> <div 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 class="tabs2"> <ul class="tablist"> <li><a href="files.html"><span>File List</span></a></li> </ul> </div> <div class="header"> <div class="headertitle"> <h1>RayCrossingCounter.h</h1> </div> </div> <div class="contents"> <div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/**********************************************************************</span> <a name="l00002"></a>00002 <span class="comment"> * $Id: RayCrossingCounter.h 2770 2009-12-03 19:27:18Z mloskot $</span> <a name="l00003"></a>00003 <span class="comment"> *</span> <a name="l00004"></a>00004 <span class="comment"> * GEOS - Geometry Engine Open Source</span> <a name="l00005"></a>00005 <span class="comment"> * http://geos.refractions.net</span> <a name="l00006"></a>00006 <span class="comment"> *</span> <a name="l00007"></a>00007 <span class="comment"> * Copyright (C) 2006 Refractions Research Inc.</span> <a name="l00008"></a>00008 <span class="comment"> *</span> <a name="l00009"></a>00009 <span class="comment"> * This is free software; you can redistribute and/or modify it under</span> <a name="l00010"></a>00010 <span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span> <a name="l00011"></a>00011 <span class="comment"> * by the Free Software Foundation. </span> <a name="l00012"></a>00012 <span class="comment"> * See the COPYING file for more information.</span> <a name="l00013"></a>00013 <span class="comment"> *</span> <a name="l00014"></a>00014 <span class="comment"> *</span> <a name="l00015"></a>00015 <span class="comment"> **********************************************************************</span> <a name="l00016"></a>00016 <span class="comment"> *</span> <a name="l00017"></a>00017 <span class="comment"> * Last port: algorithm/RayCrossingCounter.java rev. 1.2 (JTS-1.9)</span> <a name="l00018"></a>00018 <span class="comment"> *</span> <a name="l00019"></a>00019 <span class="comment"> **********************************************************************/</span> <a name="l00020"></a>00020 <a name="l00021"></a>00021 <span class="preprocessor">#ifndef GEOS_ALGORITHM_RAYCROSSINGCOUNTER_H</span> <a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_ALGORITHM_RAYCROSSINGCOUNTER_H</span> <a name="l00023"></a>00023 <span class="preprocessor"></span> <a name="l00024"></a>00024 <span class="preprocessor">#include <geos/export.h></span> <a name="l00025"></a>00025 <a name="l00026"></a>00026 <span class="preprocessor">#include <vector></span> <a name="l00027"></a>00027 <a name="l00028"></a>00028 <span class="comment">// forward declarations</span> <a name="l00029"></a>00029 <span class="keyword">namespace </span>geos { <a name="l00030"></a>00030 <span class="keyword">namespace </span>geom { <a name="l00031"></a>00031 <span class="keyword">class </span>Coordinate; <a name="l00032"></a>00032 <span class="keyword">class </span>CoordinateSequence; <a name="l00033"></a>00033 } <a name="l00034"></a>00034 } <a name="l00035"></a>00035 <a name="l00036"></a>00036 <a name="l00037"></a>00037 <span class="keyword">namespace </span>geos { <a name="l00038"></a>00038 <span class="keyword">namespace </span>algorithm { <a name="l00039"></a>00039 <a name="l00067"></a><a class="code" href="classgeos_1_1algorithm_1_1RayCrossingCounter.html">00067</a> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1algorithm_1_1RayCrossingCounter.html" title="Counts the number of segments crossed by a horizontal ray extending to the right from a given point...">RayCrossingCounter</a> <a name="l00068"></a>00068 { <a name="l00069"></a>00069 <span class="keyword">private</span>: <a name="l00070"></a>00070 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>& point; <a name="l00071"></a>00071 <a name="l00072"></a>00072 <span class="keywordtype">int</span> crossingCount; <a name="l00073"></a>00073 <a name="l00074"></a>00074 <span class="comment">// true if the test point lies on an input segment</span> <a name="l00075"></a>00075 <span class="keywordtype">bool</span> isPointOnSegment; <a name="l00076"></a>00076 <a name="l00077"></a>00077 <span class="comment">// Declare type as noncopyable</span> <a name="l00078"></a>00078 <a class="code" href="classgeos_1_1algorithm_1_1RayCrossingCounter.html" title="Counts the number of segments crossed by a horizontal ray extending to the right from a given point...">RayCrossingCounter</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1algorithm_1_1RayCrossingCounter.html" title="Counts the number of segments crossed by a horizontal ray extending to the right from a given point...">RayCrossingCounter</a>& other); <a name="l00079"></a>00079 <a class="code" href="classgeos_1_1algorithm_1_1RayCrossingCounter.html" title="Counts the number of segments crossed by a horizontal ray extending to the right from a given point...">RayCrossingCounter</a>& operator=(<span class="keyword">const</span> <a class="code" href="classgeos_1_1algorithm_1_1RayCrossingCounter.html" title="Counts the number of segments crossed by a horizontal ray extending to the right from a given point...">RayCrossingCounter</a>& rhs); <a name="l00080"></a>00080 <a name="l00081"></a>00081 <span class="keyword">public</span>: <a name="l00090"></a>00090 <span class="keyword">static</span> <span class="keywordtype">int</span> locatePointInRing(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>& p, <a name="l00091"></a>00091 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html" title="The internal representation of a list of coordinates inside a Geometry.">geom::CoordinateSequence</a>& ring); <a name="l00092"></a>00092 <a name="l00094"></a>00094 <span class="keyword">static</span> <span class="keywordtype">int</span> locatePointInRing(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>& p, <a name="l00095"></a>00095 <span class="keyword">const</span> std::vector<const geom::Coordinate*>& ring); <a name="l00096"></a>00096 <a name="l00097"></a>00097 <a class="code" href="classgeos_1_1algorithm_1_1RayCrossingCounter.html" title="Counts the number of segments crossed by a horizontal ray extending to the right from a given point...">RayCrossingCounter</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>& point) <a name="l00098"></a>00098 : point( point), <a name="l00099"></a>00099 crossingCount( 0), <a name="l00100"></a>00100 isPointOnSegment( <span class="keyword">false</span>) <a name="l00101"></a>00101 { } <a name="l00102"></a>00102 <a name="l00109"></a>00109 <span class="keywordtype">void</span> countSegment(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>& p1, <a name="l00110"></a>00110 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>& p2); <a name="l00111"></a>00111 <a name="l00121"></a><a class="code" href="classgeos_1_1algorithm_1_1RayCrossingCounter.html#aa1a0b63601c69e817aa262617667a41b">00121</a> <span class="keywordtype">bool</span> isOnSegment() <a name="l00122"></a>00122 { <a name="l00123"></a>00123 <span class="keywordflow">return</span> isPointOnSegment; <a name="l00124"></a>00124 } <a name="l00125"></a>00125 <a name="l00136"></a>00136 <span class="keywordtype">int</span> getLocation(); <a name="l00137"></a>00137 <a name="l00148"></a>00148 <span class="keywordtype">bool</span> isPointInPolygon(); <a name="l00149"></a>00149 <a name="l00150"></a>00150 }; <a name="l00151"></a>00151 <a name="l00152"></a>00152 } <span class="comment">// geos::algorithm</span> <a name="l00153"></a>00153 } <span class="comment">// geos</span> <a name="l00154"></a>00154 <a name="l00155"></a>00155 <span class="preprocessor">#endif // GEOS_ALGORITHM_RAYCROSSINGCOUNTER_H</span> <a name="l00156"></a>00156 <span class="preprocessor"></span><span class="comment">/**********************************************************************</span> <a name="l00157"></a>00157 <span class="comment"> * $Log$</span> <a name="l00158"></a>00158 <span class="comment"> **********************************************************************/</span> <a name="l00159"></a>00159 </pre></div></div> </div> <hr class="footer"/><address class="footer"><small>Generated on Thu Jul 22 2010 for GEOS by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.1 </small></address> </body> </html>