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<h1>Node.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: Node.h 2557 2009-06-08 09:30:55Z 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 <span class="comment"> *</span>
<a name="l00017"></a>00017 <span class="comment"> * Last port: geomgraph/Node.java rev. 1.7 (JTS-1.10)</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
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef GEOS_GEOMGRAPH_NODE_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_GEOMGRAPH_NODE_H</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <geos/export.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <geos/geomgraph/GraphComponent.h></span> <span class="comment">// for inheritance</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <geos/geom/Coordinate.h></span> <span class="comment">// for member</span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="preprocessor">#ifndef NDEBUG</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#include <geos/geomgraph/EdgeEndStar.h></span> <span class="comment">// for testInvariant</span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <geos/geomgraph/EdgeEnd.h></span> <span class="comment">// for testInvariant</span>
<a name="l00032"></a>00032 <span class="preprocessor">#endif // ndef NDEBUG</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <geos/inline.h></span>
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="preprocessor">#include <cassert></span>
<a name="l00037"></a>00037 <span class="preprocessor">#include <string></span>
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="comment">// Forward declarations</span>
<a name="l00040"></a>00040 <span class="keyword">namespace </span>geos {
<a name="l00041"></a>00041 <span class="keyword">namespace </span>geom {
<a name="l00042"></a>00042 <span class="keyword">class </span>IntersectionMatrix;
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044 <span class="keyword">namespace </span>geomgraph {
<a name="l00045"></a>00045 <span class="keyword">class </span>Node;
<a name="l00046"></a>00046 <span class="keyword">class </span>EdgeEndStar;
<a name="l00047"></a>00047 <span class="keyword">class </span>EdgeEnd;
<a name="l00048"></a>00048 <span class="keyword">class </span>Label;
<a name="l00049"></a>00049 <span class="keyword">class </span>NodeFactory;
<a name="l00050"></a>00050 }
<a name="l00051"></a>00051 }
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="keyword">namespace </span>geos {
<a name="l00054"></a>00054 <span class="keyword">namespace </span>geomgraph { <span class="comment">// geos.geomgraph</span>
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="keyword">class </span>GEOS_DLL Node: <span class="keyword">public</span> GraphComponent {
<a name="l00057"></a>00057 <span class="keyword">using</span> GraphComponent::setLabel;
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="keyword">public</span>:
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keyword">friend</span> std::ostream& operator<< (std::ostream& os, <span class="keyword">const</span> Node& node);
<a name="l00062"></a>00062
<a name="l00063"></a>00063 Node(<span class="keyword">const</span> geom::Coordinate& newCoord, EdgeEndStar* newEdges);
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keyword">virtual</span> ~Node();
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="keyword">virtual</span> <span class="keyword">const</span> geom::Coordinate& getCoordinate() <span class="keyword">const</span>;
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="keyword">virtual</span> EdgeEndStar* getEdges();
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> isIsolated() <span class="keyword">const</span>;
<a name="l00072"></a>00072
<a name="l00076"></a>00076 <span class="keyword">virtual</span> <span class="keywordtype">void</span> add(EdgeEnd *e);
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="keyword">virtual</span> <span class="keywordtype">void</span> mergeLabel(<span class="keyword">const</span> Node& n);
<a name="l00079"></a>00079
<a name="l00087"></a>00087 <span class="keyword">virtual</span> <span class="keywordtype">void</span> mergeLabel(<span class="keyword">const</span> Label& label2);
<a name="l00088"></a>00088
<a name="l00089"></a>00089 <span class="keyword">virtual</span> <span class="keywordtype">void</span> setLabel(<span class="keywordtype">int</span> argIndex, <span class="keywordtype">int</span> onLocation);
<a name="l00090"></a>00090
<a name="l00095"></a>00095 <span class="keyword">virtual</span> <span class="keywordtype">void</span> setLabelBoundary(<span class="keywordtype">int</span> argIndex);
<a name="l00096"></a>00096
<a name="l00105"></a>00105 <span class="keyword">virtual</span> <span class="keywordtype">int</span> computeMergedLocation(<span class="keyword">const</span> Label* label2, <span class="keywordtype">int</span> eltIndex);
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="keyword">virtual</span> std::string print();
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="keyword">virtual</span> <span class="keyword">const</span> std::vector<double> &getZ() <span class="keyword">const</span>;
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="keyword">virtual</span> <span class="keywordtype">void</span> addZ(<span class="keywordtype">double</span>);
<a name="l00112"></a>00112
<a name="l00124"></a>00124 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> isIncidentEdgeInResult() <span class="keyword">const</span>;
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="keyword">protected</span>:
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="keywordtype">void</span> testInvariant() <span class="keyword">const</span>;
<a name="l00129"></a>00129
<a name="l00130"></a>00130 geom::Coordinate coord;
<a name="l00131"></a>00131
<a name="l00132"></a>00132 EdgeEndStar* edges;
<a name="l00133"></a>00133
<a name="l00137"></a>00137 <span class="keyword">virtual</span> <span class="keywordtype">void</span> computeIM(geom::IntersectionMatrix* <span class="comment">/*im*/</span>) {};
<a name="l00138"></a>00138
<a name="l00139"></a>00139 <span class="keyword">private</span>:
<a name="l00140"></a>00140
<a name="l00141"></a>00141 std::vector<double> zvals;
<a name="l00142"></a>00142
<a name="l00143"></a>00143 <span class="keywordtype">double</span> ztot;
<a name="l00144"></a>00144
<a name="l00145"></a>00145 };
<a name="l00146"></a>00146
<a name="l00147"></a>00147 std::ostream& operator<< (std::ostream& os, <span class="keyword">const</span> Node& node);
<a name="l00148"></a>00148
<a name="l00149"></a>00149 <span class="keyword">inline</span> <span class="keywordtype">void</span>
<a name="l00150"></a>00150 Node::testInvariant()<span class="keyword"> const</span>
<a name="l00151"></a>00151 <span class="keyword"></span>{
<a name="l00152"></a>00152 <span class="preprocessor">#ifndef NDEBUG</span>
<a name="l00153"></a>00153 <span class="preprocessor"></span> <span class="keywordflow">if</span> (edges)
<a name="l00154"></a>00154 {
<a name="l00155"></a>00155 <span class="comment">// Each EdgeEnd in the star has this Node's </span>
<a name="l00156"></a>00156 <span class="comment">// coordinate as first coordinate</span>
<a name="l00157"></a>00157 <span class="keywordflow">for</span> (EdgeEndStar::iterator
<a name="l00158"></a>00158 it=edges->begin(), itEnd=edges->end();
<a name="l00159"></a>00159 it != itEnd; it++)
<a name="l00160"></a>00160 {
<a name="l00161"></a>00161 EdgeEnd* e=*it;
<a name="l00162"></a>00162 assert(e);
<a name="l00163"></a>00163 assert(e->getCoordinate().equals2D(coord));
<a name="l00164"></a>00164 }
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166
<a name="l00167"></a>00167 <span class="preprocessor">#if 0 // We can't rely on numerical stability with FP computations</span>
<a name="l00168"></a>00168 <span class="preprocessor"></span> <span class="comment">// ztot is the sum of doubnle sin zvals vector</span>
<a name="l00169"></a>00169 <span class="keywordtype">double</span> ztot_check=0.0;
<a name="l00170"></a>00170 <span class="keywordflow">for</span> (std::vector<double>::const_iterator
<a name="l00171"></a>00171 i = zvals.begin(), e = zvals.end();
<a name="l00172"></a>00172 i != e;
<a name="l00173"></a>00173 i++)
<a name="l00174"></a>00174 {
<a name="l00175"></a>00175 ztot_check += *i;
<a name="l00176"></a>00176 }
<a name="l00177"></a>00177 assert(ztot_check == ztot);
<a name="l00178"></a>00178 <span class="preprocessor">#endif // 0</span>
<a name="l00179"></a>00179 <span class="preprocessor"></span>
<a name="l00180"></a>00180 <span class="preprocessor">#endif</span>
<a name="l00181"></a>00181 <span class="preprocessor"></span>}
<a name="l00182"></a>00182
<a name="l00183"></a>00183
<a name="l00184"></a>00184 } <span class="comment">// namespace geos.geomgraph</span>
<a name="l00185"></a>00185 } <span class="comment">// namespace geos</span>
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="comment">//#ifdef GEOS_INLINE</span>
<a name="l00188"></a>00188 <span class="comment">//# include "geos/geomgraph/Node.inl"</span>
<a name="l00189"></a>00189 <span class="comment">//#endif</span>
<a name="l00190"></a>00190
<a name="l00191"></a>00191 <span class="preprocessor">#endif // ifndef GEOS_GEOMGRAPH_NODE_H</span>
<a name="l00192"></a>00192 <span class="preprocessor"></span>
<a name="l00193"></a>00193 <span class="comment">/**********************************************************************</span>
<a name="l00194"></a>00194 <span class="comment"> * $Log$</span>
<a name="l00195"></a>00195 <span class="comment"> * Revision 1.6 2006/06/01 11:49:36 strk</span>
<a name="l00196"></a>00196 <span class="comment"> * Reduced installed headers form geomgraph namespace</span>
<a name="l00197"></a>00197 <span class="comment"> *</span>
<a name="l00198"></a>00198 <span class="comment"> * Revision 1.5 2006/04/27 15:15:06 strk</span>
<a name="l00199"></a>00199 <span class="comment"> * Z check removed from invariant tester to avoid aborts due to differences in FP computations.</span>
<a name="l00200"></a>00200 <span class="comment"> *</span>
<a name="l00201"></a>00201 <span class="comment"> * Revision 1.4 2006/04/07 16:01:51 strk</span>
<a name="l00202"></a>00202 <span class="comment"> * Port info, doxygen comments, testInvariant(), many assertionss, handling of</span>
<a name="l00203"></a>00203 <span class="comment"> * the NULL EdgeEndStar member</span>
<a name="l00204"></a>00204 <span class="comment"> *</span>
<a name="l00205"></a>00205 <span class="comment"> * Revision 1.3 2006/03/24 09:52:41 strk</span>
<a name="l00206"></a>00206 <span class="comment"> * USE_INLINE => GEOS_INLINE</span>
<a name="l00207"></a>00207 <span class="comment"> *</span>
<a name="l00208"></a>00208 <span class="comment"> * Revision 1.2 2006/03/15 16:27:54 strk</span>
<a name="l00209"></a>00209 <span class="comment"> * operator<< for Node class</span>
<a name="l00210"></a>00210 <span class="comment"> *</span>
<a name="l00211"></a>00211 <span class="comment"> * Revision 1.1 2006/03/09 16:46:49 strk</span>
<a name="l00212"></a>00212 <span class="comment"> * geos::geom namespace definition, first pass at headers split</span>
<a name="l00213"></a>00213 <span class="comment"> *</span>
<a name="l00214"></a>00214 <span class="comment"> **********************************************************************/</span>
<a name="l00215"></a>00215
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