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<h1>SingleInteriorIntersectionFinder.h</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/**********************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> * $Id: SingleInteriorIntersectionFinder.h 2778 2009-12-03 19:44:00Z 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
<a name="l00016"></a>00016 <span class="preprocessor">#ifndef GEOS_NODING_SINGLEINTERIORINTERSECTIONFINDER_H</span>
<a name="l00017"></a>00017 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_NODING_SINGLEINTERIORINTERSECTIONFINDER_H</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span>
<a name="l00019"></a>00019 <span class="preprocessor">#include <geos/noding/SegmentIntersector.h></span> <span class="comment">// for inheritance</span>
<a name="l00020"></a>00020 <span class="preprocessor">#include <geos/geom/Coordinate.h></span> <span class="comment">// for composition</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#include <vector></span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="comment">// Forward declarations</span>
<a name="l00025"></a>00025 <span class="keyword">namespace </span>geos {
<a name="l00026"></a>00026 <span class="keyword">namespace </span>algorithm {
<a name="l00027"></a>00027 <span class="keyword">class </span>LineIntersector;
<a name="l00028"></a>00028 }
<a name="l00029"></a>00029 <span class="keyword">namespace </span>noding {
<a name="l00030"></a>00030 <span class="keyword">class </span>SegmentString;
<a name="l00031"></a>00031 }
<a name="l00032"></a>00032 }
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="keyword">namespace </span>geos {
<a name="l00035"></a>00035 <span class="keyword">namespace </span>noding { <span class="comment">// geos.noding</span>
<a name="l00036"></a>00036
<a name="l00044"></a><a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html">00044</a> <span class="keyword">class </span><a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html" title="Finds an interior intersection in a set of SegmentString, if one exists. Only the first intersection ...">SingleInteriorIntersectionFinder</a>: <span class="keyword">public</span> <a class="code" href="classgeos_1_1noding_1_1SegmentIntersector.html" title="Processes possible intersections detected by a Noder.">SegmentIntersector</a>
<a name="l00045"></a>00045 {
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="keyword">public</span>:
<a name="l00048"></a>00048
<a name="l00055"></a><a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html#a6845e5980450325bf054ebc7fa80e199">00055</a> <a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html#a6845e5980450325bf054ebc7fa80e199" title="Creates an intersection finder which finds an interior intersection if one exists.">SingleInteriorIntersectionFinder</a>(<a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html" title="A LineIntersector is an algorithm that can both test whether two line segments intersect and compute ...">algorithm::LineIntersector</a>& newLi)
<a name="l00056"></a>00056 :
<a name="l00057"></a>00057 li(newLi),
<a name="l00058"></a>00058 interiorIntersection(geom::Coordinate::getNull())
<a name="l00059"></a>00059 {
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061
<a name="l00067"></a><a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html#af46577b39de46d28779c2eeb5597c4ed">00067</a> <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html#af46577b39de46d28779c2eeb5597c4ed" title="Tests whether an intersection was found.">hasIntersection</a>()<span class="keyword"> const</span>
<a name="l00068"></a>00068 <span class="keyword"> </span>{
<a name="l00069"></a>00069 <span class="keywordflow">return</span> !interiorIntersection.isNull();
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071
<a name="l00078"></a><a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html#aeb5c05a21b8a392695fea4e837a9f07f">00078</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>& <a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html#aeb5c05a21b8a392695fea4e837a9f07f" title="Gets the computed location of the intersection. Due to round-off, the location may not be exact...">getInteriorIntersection</a>()<span class="keyword"> const</span>
<a name="l00079"></a>00079 <span class="keyword"> </span>{
<a name="l00080"></a>00080 <span class="keywordflow">return</span> interiorIntersection;
<a name="l00081"></a>00081 }
<a name="l00082"></a>00082
<a name="l00088"></a><a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html#ab34a94fb225c7f04bdc2b5692fe9408b">00088</a> <span class="keyword">const</span> std::vector<geom::Coordinate>& <a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html#ab34a94fb225c7f04bdc2b5692fe9408b" title="Gets the endpoints of the intersecting segments.">getIntersectionSegments</a>()<span class="keyword"> const</span>
<a name="l00089"></a>00089 <span class="keyword"> </span>{
<a name="l00090"></a>00090 <span class="keywordflow">return</span> intSegments;
<a name="l00091"></a>00091 }
<a name="l00092"></a>00092
<a name="l00102"></a>00102 <span class="keywordtype">void</span> <a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html#af819e151c6180d923696c1924d3dbcfa" title="This method is called by clients of the SegmentIntersector class to process intersections for two seg...">processIntersections</a>(
<a name="l00103"></a>00103 <a class="code" href="classgeos_1_1noding_1_1SegmentString.html" title="An interface for classes which represent a sequence of contiguous line segments.">SegmentString</a>* e0, <span class="keywordtype">int</span> segIndex0,
<a name="l00104"></a>00104 <a class="code" href="classgeos_1_1noding_1_1SegmentString.html" title="An interface for classes which represent a sequence of contiguous line segments.">SegmentString</a>* e1, <span class="keywordtype">int</span> segIndex1);
<a name="l00105"></a>00105
<a name="l00106"></a><a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html#a8932c1f2b238c29a2cc1865fe9c56d4f">00106</a> <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html#a8932c1f2b238c29a2cc1865fe9c56d4f" title="Reports whether the client of this class needs to continue testing all intersections in an arrangemen...">isDone</a>()<span class="keyword"> const</span>
<a name="l00107"></a>00107 <span class="keyword"> </span>{
<a name="l00108"></a>00108 <span class="keywordflow">return</span> !interiorIntersection.isNull();
<a name="l00109"></a>00109 }
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="keyword">private</span>:
<a name="l00112"></a>00112 <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html" title="A LineIntersector is an algorithm that can both test whether two line segments intersect and compute ...">algorithm::LineIntersector</a>& li;
<a name="l00113"></a>00113 <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a> interiorIntersection;
<a name="l00114"></a>00114 std::vector<geom::Coordinate> intSegments;
<a name="l00115"></a>00115
<a name="l00116"></a>00116 <span class="comment">// Declare type as noncopyable</span>
<a name="l00117"></a>00117 <a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html#a6845e5980450325bf054ebc7fa80e199" title="Creates an intersection finder which finds an interior intersection if one exists.">SingleInteriorIntersectionFinder</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html" title="Finds an interior intersection in a set of SegmentString, if one exists. Only the first intersection ...">SingleInteriorIntersectionFinder</a>& other);
<a name="l00118"></a>00118 <a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html" title="Finds an interior intersection in a set of SegmentString, if one exists. Only the first intersection ...">SingleInteriorIntersectionFinder</a>& operator=(<span class="keyword">const</span> <a class="code" href="classgeos_1_1noding_1_1SingleInteriorIntersectionFinder.html" title="Finds an interior intersection in a set of SegmentString, if one exists. Only the first intersection ...">SingleInteriorIntersectionFinder</a>& rhs);
<a name="l00119"></a>00119 };
<a name="l00120"></a>00120
<a name="l00121"></a>00121 } <span class="comment">// namespace geos.noding</span>
<a name="l00122"></a>00122 } <span class="comment">// namespace geos</span>
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="preprocessor">#endif // GEOS_NODING_SINGLEINTERIORINTERSECTIONFINDER_H</span>
<a name="l00125"></a>00125 <span class="preprocessor"></span>
<a name="l00126"></a>00126 <span class="comment">/**********************************************************************</span>
<a name="l00127"></a>00127 <span class="comment"> * $Log$</span>
<a name="l00128"></a>00128 <span class="comment"> **********************************************************************/</span>
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