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<h1>IntersectionAdder.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: IntersectionAdder.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 <span class="comment"> *</span>
<a name="l00016"></a>00016 <span class="comment"> * Last port: noding/IntersectionAdder.java rev. 1.6 (JTS-1.9)</span>
<a name="l00017"></a>00017 <span class="comment"> *</span>
<a name="l00018"></a>00018 <span class="comment"> **********************************************************************/</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="preprocessor">#ifndef GEOS_NODING_INTERSECTIONADDER_H</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_NODING_INTERSECTIONADDER_H</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <geos/export.h></span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="preprocessor">#include <vector></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <iostream></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <cstdlib></span> <span class="comment">// for abs()</span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="preprocessor">#include <geos/inline.h></span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="preprocessor">#include <geos/geom/Coordinate.h></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <geos/noding/SegmentIntersector.h></span> <span class="comment">// for inheritance</span>
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="comment">// Forward declarations</span>
<a name="l00035"></a>00035 <span class="keyword">namespace </span>geos {
<a name="l00036"></a>00036 <span class="keyword">namespace </span>geom {
<a name="l00037"></a>00037 <span class="keyword">class </span>Coordinate;
<a name="l00038"></a>00038 }
<a name="l00039"></a>00039 <span class="keyword">namespace </span>noding {
<a name="l00040"></a>00040 <span class="keyword">class </span>SegmentString;
<a name="l00041"></a>00041 }
<a name="l00042"></a>00042 <span class="keyword">namespace </span>algorithm {
<a name="l00043"></a>00043 <span class="keyword">class </span>LineIntersector;
<a name="l00044"></a>00044 }
<a name="l00045"></a>00045 }
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="keyword">namespace </span>geos {
<a name="l00048"></a>00048 <span class="keyword">namespace </span>noding { <span class="comment">// geos.noding</span>
<a name="l00049"></a>00049
<a name="l00059"></a><a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html">00059</a> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html">IntersectionAdder</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="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keyword">private</span>:
<a name="l00062"></a>00062
<a name="l00067"></a>00067 <span class="keywordtype">bool</span> hasIntersectionVar;
<a name="l00068"></a>00068 <span class="keywordtype">bool</span> hasProper;
<a name="l00069"></a>00069 <span class="keywordtype">bool</span> hasProperInterior;
<a name="l00070"></a>00070 <span class="keywordtype">bool</span> hasInterior;
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="comment">// the proper intersection point found</span>
<a name="l00073"></a>00073 <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>* properIntersectionPoint;
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <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="l00076"></a>00076 <span class="keywordtype">bool</span> isSelfIntersection;
<a name="l00077"></a>00077 <span class="comment">//bool intersectionFound;</span>
<a name="l00078"></a>00078
<a name="l00085"></a>00085 <span class="keywordtype">bool</span> isTrivialIntersection(<span class="keyword">const</span> <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="l00086"></a>00086 <span class="keyword">const</span> <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="l00087"></a>00087
<a name="l00088"></a>00088 <span class="comment">// Declare type as noncopyable</span>
<a name="l00089"></a>00089 <a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html">IntersectionAdder</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html">IntersectionAdder</a>& other);
<a name="l00090"></a>00090 <a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html">IntersectionAdder</a>& operator=(<span class="keyword">const</span> <a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html">IntersectionAdder</a>& rhs);
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="keyword">public</span>:
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="keywordtype">int</span> numIntersections;
<a name="l00095"></a>00095 <span class="keywordtype">int</span> numInteriorIntersections;
<a name="l00096"></a>00096 <span class="keywordtype">int</span> numProperIntersections;
<a name="l00097"></a>00097
<a name="l00098"></a>00098 <span class="comment">// testing only</span>
<a name="l00099"></a>00099 <span class="keywordtype">int</span> numTests;
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html">IntersectionAdder</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="l00102"></a>00102 :
<a name="l00103"></a>00103 hasIntersectionVar(<span class="keyword">false</span>),
<a name="l00104"></a>00104 hasProper(<span class="keyword">false</span>),
<a name="l00105"></a>00105 hasProperInterior(<span class="keyword">false</span>),
<a name="l00106"></a>00106 hasInterior(<span class="keyword">false</span>),
<a name="l00107"></a>00107 properIntersectionPoint(NULL),
<a name="l00108"></a>00108 li(newLi),
<a name="l00109"></a>00109 numIntersections(0),
<a name="l00110"></a>00110 numInteriorIntersections(0),
<a name="l00111"></a>00111 numProperIntersections(0),
<a name="l00112"></a>00112 numTests(0)
<a name="l00113"></a>00113 {}
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <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>& getLineIntersector() { <span class="keywordflow">return</span> li; }
<a name="l00116"></a>00116
<a name="l00121"></a><a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html#a8343f416e551d07204b681a47bd5a2dc">00121</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_1IntersectionAdder.html#a8343f416e551d07204b681a47bd5a2dc">getProperIntersectionPoint</a>() {
<a name="l00122"></a>00122 <span class="keywordflow">return</span> properIntersectionPoint;
<a name="l00123"></a>00123 }
<a name="l00124"></a>00124
<a name="l00125"></a>00125 <span class="keywordtype">bool</span> hasIntersection() { <span class="keywordflow">return</span> hasIntersectionVar; }
<a name="l00126"></a>00126
<a name="l00135"></a><a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html#a97e082438a0ca42ab804b7d061a752d3">00135</a> <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html#a97e082438a0ca42ab804b7d061a752d3">hasProperIntersection</a>() { <span class="keywordflow">return</span> hasProper; }
<a name="l00136"></a>00136
<a name="l00142"></a><a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html#a7226f13f231d0a496f0286a42d9e1ea4">00142</a> <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html#a7226f13f231d0a496f0286a42d9e1ea4">hasProperInteriorIntersection</a>() { <span class="keywordflow">return</span> hasProperInterior; }
<a name="l00143"></a>00143
<a name="l00148"></a><a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html#a1b2affb36276fc054692f90196204377">00148</a> <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html#a1b2affb36276fc054692f90196204377">hasInteriorIntersection</a>() { <span class="keywordflow">return</span> hasInterior; }
<a name="l00149"></a>00149
<a name="l00150"></a>00150
<a name="l00160"></a>00160 <span class="keywordtype">void</span> processIntersections(
<a name="l00161"></a>00161 <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="l00162"></a>00162 <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="l00163"></a>00163
<a name="l00164"></a>00164
<a name="l00165"></a>00165 <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="l00166"></a>00166 <span class="keywordflow">return</span> std::abs(i1 - i2) == 1;
<a name="l00167"></a>00167 }
<a name="l00168"></a>00168
<a name="l00174"></a><a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html#aa904563a2e9b0784cdd5b484d4704ac7">00174</a> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1noding_1_1IntersectionAdder.html#aa904563a2e9b0784cdd5b484d4704ac7">isDone</a>()<span class="keyword"> const </span>{
<a name="l00175"></a>00175 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00176"></a>00176 }
<a name="l00177"></a>00177 };
<a name="l00178"></a>00178
<a name="l00179"></a>00179
<a name="l00180"></a>00180 } <span class="comment">// namespace geos.noding</span>
<a name="l00181"></a>00181 } <span class="comment">// namespace geos</span>
<a name="l00182"></a>00182
<a name="l00183"></a>00183 <span class="comment">//#ifdef GEOS_INLINE</span>
<a name="l00184"></a>00184 <span class="comment">//# include "geos/noding/IntersectionAdder.inl"</span>
<a name="l00185"></a>00185 <span class="comment">//#endif</span>
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="preprocessor">#endif // GEOS_NODING_INTERSECTIONADDER_H</span>
<a name="l00188"></a>00188 <span class="preprocessor"></span>
<a name="l00189"></a>00189 <span class="comment">/**********************************************************************</span>
<a name="l00190"></a>00190 <span class="comment"> * $Log$</span>
<a name="l00191"></a>00191 <span class="comment"> * Revision 1.2 2006/03/24 09:52:41 strk</span>
<a name="l00192"></a>00192 <span class="comment"> * USE_INLINE => GEOS_INLINE</span>
<a name="l00193"></a>00193 <span class="comment"> *</span>
<a name="l00194"></a>00194 <span class="comment"> * Revision 1.1 2006/03/09 16:46:49 strk</span>
<a name="l00195"></a>00195 <span class="comment"> * geos::geom namespace definition, first pass at headers split</span>
<a name="l00196"></a>00196 <span class="comment"> *</span>
<a name="l00197"></a>00197 <span class="comment"> **********************************************************************/</span>
<a name="l00198"></a>00198
</pre></div></div>
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