<!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: SegmentIntersector.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>SegmentIntersector.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: SegmentIntersector.h 2556 2009-06-06 22:22:28Z strk $</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) 2005-2006 Refractions Research Inc.</span> <a name="l00008"></a>00008 <span class="comment"> * Copyright (C) 2001-2002 Vivid Solutions Inc.</span> <a name="l00009"></a>00009 <span class="comment"> *</span> <a name="l00010"></a>00010 <span class="comment"> * This is free software; you can redistribute and/or modify it under</span> <a name="l00011"></a>00011 <span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span> <a name="l00012"></a>00012 <span class="comment"> * by the Free Software Foundation. </span> <a name="l00013"></a>00013 <span class="comment"> * See the COPYING file for more information.</span> <a name="l00014"></a>00014 <span class="comment"> *</span> <a name="l00015"></a>00015 <span class="comment"> **********************************************************************/</span> <a name="l00016"></a>00016 <a name="l00017"></a>00017 <span class="preprocessor">#ifndef GEOS_GEOMGRAPH_INDEX_SEGMENTINTERSECTOR_H</span> <a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_GEOMGRAPH_INDEX_SEGMENTINTERSECTOR_H</span> <a name="l00019"></a>00019 <span class="preprocessor"></span> <a name="l00020"></a>00020 <a name="l00021"></a>00021 <span class="preprocessor">#include <geos/export.h></span> <a name="l00022"></a>00022 <span class="preprocessor">#include <vector></span> <a name="l00023"></a>00023 <a name="l00024"></a>00024 <span class="preprocessor">#include <geos/geom/Coordinate.h></span> <span class="comment">// for composition</span> <a name="l00025"></a>00025 <a name="l00026"></a>00026 <span class="comment">// Forward declarations</span> <a name="l00027"></a>00027 <span class="keyword">namespace </span>geos { <a name="l00028"></a>00028 <span class="keyword">namespace </span>algorithm { <a name="l00029"></a>00029 <span class="keyword">class </span>LineIntersector; <a name="l00030"></a>00030 } <a name="l00031"></a>00031 <span class="keyword">namespace </span>geomgraph { <a name="l00032"></a>00032 <span class="keyword">class </span>Node; <a name="l00033"></a>00033 <span class="keyword">class </span>Edge; <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>geomgraph { <span class="comment">// geos::geomgraph</span> <a name="l00039"></a>00039 <span class="keyword">namespace </span>index { <span class="comment">// geos::geomgraph::index</span> <a name="l00040"></a>00040 <a name="l00041"></a>00041 <a name="l00042"></a>00042 <span class="keyword">class </span>GEOS_DLL SegmentIntersector{ <a name="l00043"></a>00043 <a name="l00044"></a>00044 <span class="keyword">private</span>: <a name="l00045"></a>00045 <a name="l00050"></a>00050 <span class="keywordtype">bool</span> hasIntersectionVar; <a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="keywordtype">bool</span> hasProper; <a name="l00053"></a>00053 <a name="l00054"></a>00054 <span class="keywordtype">bool</span> hasProperInterior; <a name="l00055"></a>00055 <a name="l00056"></a>00056 <span class="comment">// the proper intersection point found</span> <a name="l00057"></a>00057 geom::Coordinate properIntersectionPoint; <a name="l00058"></a>00058 <a name="l00059"></a>00059 algorithm::LineIntersector *li; <a name="l00060"></a>00060 <a name="l00061"></a>00061 <span class="keywordtype">bool</span> includeProper; <a name="l00062"></a>00062 <a name="l00063"></a>00063 <span class="keywordtype">bool</span> recordIsolated; <a name="l00064"></a>00064 <a name="l00065"></a>00065 <span class="comment">//bool isSelfIntersection;</span> <a name="l00066"></a>00066 <a name="l00067"></a>00067 <span class="comment">//bool intersectionFound;</span> <a name="l00068"></a>00068 <a name="l00069"></a>00069 <span class="keywordtype">int</span> numIntersections; <a name="l00070"></a>00070 <a name="l00072"></a>00072 std::vector<std::vector<Node*>*> bdyNodes; <a name="l00073"></a>00073 <a name="l00074"></a>00074 <span class="keywordtype">bool</span> isTrivialIntersection(Edge *e0,<span class="keywordtype">int</span> segIndex0,Edge *e1, <span class="keywordtype">int</span> segIndex1); <a name="l00075"></a>00075 <a name="l00076"></a>00076 <span class="keywordtype">bool</span> isBoundaryPoint(algorithm::LineIntersector *li, <a name="l00077"></a>00077 std::vector<std::vector<Node*>*>& tstBdyNodes); <a name="l00078"></a>00078 <a name="l00079"></a>00079 <span class="keywordtype">bool</span> isBoundaryPoint(algorithm::LineIntersector *li, <a name="l00080"></a>00080 std::vector<Node*> *tstBdyNodes); <a name="l00081"></a>00081 <a name="l00082"></a>00082 <span class="keyword">public</span>: <a name="l00083"></a>00083 <a name="l00084"></a>00084 <span class="keyword">static</span> <span class="keywordtype">bool</span> isAdjacentSegments(<span class="keywordtype">int</span> i1,<span class="keywordtype">int</span> i2); <a name="l00085"></a>00085 <a name="l00086"></a>00086 <span class="comment">// testing only</span> <a name="l00087"></a>00087 <span class="keywordtype">int</span> numTests; <a name="l00088"></a>00088 <a name="l00089"></a>00089 <span class="comment">//SegmentIntersector();</span> <a name="l00090"></a>00090 <a name="l00091"></a>00091 <span class="keyword">virtual</span> ~SegmentIntersector() {} <a name="l00092"></a>00092 <a name="l00093"></a>00093 SegmentIntersector(algorithm::LineIntersector *newLi, <a name="l00094"></a>00094 <span class="keywordtype">bool</span> newIncludeProper, <span class="keywordtype">bool</span> newRecordIsolated) <a name="l00095"></a>00095 : <a name="l00096"></a>00096 hasIntersectionVar(false), <a name="l00097"></a>00097 hasProper(false), <a name="l00098"></a>00098 hasProperInterior(false), <a name="l00099"></a>00099 li(newLi), <a name="l00100"></a>00100 includeProper(newIncludeProper), <a name="l00101"></a>00101 recordIsolated(newRecordIsolated), <a name="l00102"></a>00102 numIntersections(0), <a name="l00103"></a>00103 bdyNodes(2), <a name="l00104"></a>00104 numTests(0) <a name="l00105"></a>00105 {} <a name="l00106"></a>00106 <a name="l00110"></a>00110 <span class="keywordtype">void</span> setBoundaryNodes(std::vector<Node*> *bdyNodes0, <a name="l00111"></a>00111 std::vector<Node*> *bdyNodes1); <a name="l00112"></a>00112 <a name="l00113"></a>00113 geom::Coordinate& getProperIntersectionPoint(); <a name="l00114"></a>00114 <a name="l00115"></a>00115 <span class="keywordtype">bool</span> hasIntersection(); <a name="l00116"></a>00116 <a name="l00117"></a>00117 <span class="keywordtype">bool</span> hasProperIntersection(); <a name="l00118"></a>00118 <a name="l00119"></a>00119 <span class="keywordtype">bool</span> hasProperInteriorIntersection(); <a name="l00120"></a>00120 <a name="l00121"></a>00121 <span class="keywordtype">void</span> addIntersections(Edge *e0, <span class="keywordtype">int</span> segIndex0, Edge *e1, <span class="keywordtype">int</span> segIndex1); <a name="l00122"></a>00122 <a name="l00123"></a>00123 }; <a name="l00124"></a>00124 <a name="l00125"></a>00125 <a name="l00126"></a>00126 } <span class="comment">// namespace geos.geomgraph.index</span> <a name="l00127"></a>00127 } <span class="comment">// namespace geos.geomgraph</span> <a name="l00128"></a>00128 } <span class="comment">// namespace geos</span> <a name="l00129"></a>00129 <a name="l00130"></a>00130 <span class="preprocessor">#endif</span> <a name="l00131"></a>00131 <span class="preprocessor"></span> <a name="l00132"></a>00132 <span class="comment">/**********************************************************************</span> <a name="l00133"></a>00133 <span class="comment"> * $Log$</span> <a name="l00134"></a>00134 <span class="comment"> * Revision 1.1 2006/03/14 12:55:55 strk</span> <a name="l00135"></a>00135 <span class="comment"> * Headers split: geomgraphindex.h, nodingSnapround.h</span> <a name="l00136"></a>00136 <span class="comment"> *</span> <a name="l00137"></a>00137 <span class="comment"> **********************************************************************/</span> <a name="l00138"></a>00138 </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>