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<h1>EdgeRing.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: EdgeRing.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/EdgeRing.java rev. 1.10 (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_EDGERING_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_GEOMGRAPH_EDGERING_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/Label.h></span> <span class="comment">// for composition</span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="preprocessor">#include <geos/inline.h></span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="preprocessor">#include <vector></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <cassert></span> <span class="comment">// for testInvariant</span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <iosfwd></span> <span class="comment">// for operator<<</span>
<a name="l00033"></a>00033
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="comment">// Forward declarations</span>
<a name="l00036"></a>00036 <span class="keyword">namespace </span>geos {
<a name="l00037"></a>00037 <span class="keyword">namespace </span>geom {
<a name="l00038"></a>00038 <span class="keyword">class </span>GeometryFactory;
<a name="l00039"></a>00039 <span class="keyword">class </span>LinearRing;
<a name="l00040"></a>00040 <span class="keyword">class </span>Polygon;
<a name="l00041"></a>00041 <span class="keyword">class </span>Coordinate;
<a name="l00042"></a>00042 <span class="keyword">class </span>CoordinateSequence;
<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>DirectedEdge;
<a name="l00046"></a>00046 <span class="comment">//class Label;</span>
<a name="l00047"></a>00047 <span class="keyword">class </span>Edge;
<a name="l00048"></a>00048 }
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keyword">namespace </span>geos {
<a name="l00052"></a>00052 <span class="keyword">namespace </span>geomgraph { <span class="comment">// geos.geomgraph</span>
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="keyword">class </span>GEOS_DLL EdgeRing {
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="keyword">public</span>:
<a name="l00057"></a>00057 <span class="keyword">friend</span> std::ostream& operator<< (std::ostream& os, <span class="keyword">const</span> EdgeRing& er);
<a name="l00058"></a>00058
<a name="l00059"></a>00059 EdgeRing(DirectedEdge *newStart,
<a name="l00060"></a>00060 <span class="keyword">const</span> geom::GeometryFactory *newGeometryFactory);
<a name="l00061"></a>00061
<a name="l00062"></a>00062 <span class="keyword">virtual</span> ~EdgeRing();
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="keywordtype">bool</span> isIsolated();
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="keywordtype">bool</span> isHole();
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="comment">/*</span>
<a name="l00069"></a>00069 <span class="comment"> * Return a pointer to the LinearRing owned by</span>
<a name="l00070"></a>00070 <span class="comment"> * this object. Make a copy if you need it beyond</span>
<a name="l00071"></a>00071 <span class="comment"> * this objects's lifetime.</span>
<a name="l00072"></a>00072 <span class="comment"> */</span>
<a name="l00073"></a>00073 geom::LinearRing* getLinearRing();
<a name="l00074"></a>00074
<a name="l00075"></a>00075 Label& getLabel();
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <span class="keywordtype">bool</span> isShell();
<a name="l00078"></a>00078
<a name="l00079"></a>00079 EdgeRing *getShell();
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="keywordtype">void</span> setShell(EdgeRing *newShell);
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="keywordtype">void</span> addHole(EdgeRing *edgeRing);
<a name="l00084"></a>00084
<a name="l00090"></a>00090 geom::Polygon* toPolygon(<span class="keyword">const</span> geom::GeometryFactory* geometryFactory);
<a name="l00091"></a>00091
<a name="l00097"></a>00097 <span class="keywordtype">void</span> computeRing();
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="keyword">virtual</span> DirectedEdge* getNext(DirectedEdge *de)=0;
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="keyword">virtual</span> <span class="keywordtype">void</span> setEdgeRing(DirectedEdge *de, EdgeRing *er)=0;
<a name="l00102"></a>00102
<a name="l00106"></a>00106 std::vector<DirectedEdge*>& getEdges();
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="keywordtype">int</span> getMaxNodeDegree();
<a name="l00109"></a>00109
<a name="l00110"></a>00110 <span class="keywordtype">void</span> setInResult();
<a name="l00111"></a>00111
<a name="l00116"></a>00116 <span class="keywordtype">bool</span> containsPoint(<span class="keyword">const</span> geom::Coordinate& p);
<a name="l00117"></a>00117
<a name="l00118"></a>00118 <span class="keywordtype">void</span> testInvariant()
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120 <span class="comment">// pts are never NULL</span>
<a name="l00121"></a>00121 assert(pts);
<a name="l00122"></a>00122
<a name="l00123"></a>00123 <span class="preprocessor">#ifndef NDEBUG</span>
<a name="l00124"></a>00124 <span class="preprocessor"></span> <span class="comment">// If this is not an hole, check that</span>
<a name="l00125"></a>00125 <span class="comment">// each hole is not null and </span>
<a name="l00126"></a>00126 <span class="comment">// has 'this' as it's shell</span>
<a name="l00127"></a>00127 <span class="keywordflow">if</span> ( ! shell )
<a name="l00128"></a>00128 {
<a name="l00129"></a>00129 <span class="keywordflow">for</span> (std::vector<EdgeRing*>::const_iterator
<a name="l00130"></a>00130 it=holes.begin(), itEnd=holes.end();
<a name="l00131"></a>00131 it != itEnd;
<a name="l00132"></a>00132 ++it)
<a name="l00133"></a>00133 {
<a name="l00134"></a>00134 EdgeRing* hole=*it;
<a name="l00135"></a>00135 assert(hole);
<a name="l00136"></a>00136 assert(hole->getShell()==<span class="keyword">this</span>);
<a name="l00137"></a>00137 }
<a name="l00138"></a>00138 }
<a name="l00139"></a>00139 <span class="preprocessor">#endif // ndef NDEBUG</span>
<a name="l00140"></a>00140 <span class="preprocessor"></span> }
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="keyword">protected</span>:
<a name="l00143"></a>00143
<a name="l00144"></a>00144 DirectedEdge *startDe; <span class="comment">// the directed edge which starts the list of edges for this EdgeRing</span>
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="keyword">const</span> geom::GeometryFactory *geometryFactory;
<a name="l00147"></a>00147
<a name="l00149"></a>00149 <span class="keywordtype">void</span> computePoints(DirectedEdge *newStart);
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="keywordtype">void</span> mergeLabel(Label& deLabel);
<a name="l00152"></a>00152
<a name="l00165"></a>00165 <span class="keywordtype">void</span> mergeLabel(Label& deLabel, <span class="keywordtype">int</span> geomIndex);
<a name="l00166"></a>00166
<a name="l00167"></a>00167 <span class="keywordtype">void</span> addPoints(Edge *edge, <span class="keywordtype">bool</span> isForward, <span class="keywordtype">bool</span> isFirstEdge);
<a name="l00168"></a>00168
<a name="l00170"></a>00170 std::vector<EdgeRing*> holes;
<a name="l00171"></a>00171
<a name="l00172"></a>00172 <span class="keyword">private</span>:
<a name="l00173"></a>00173
<a name="l00174"></a>00174 <span class="keywordtype">int</span> maxNodeDegree;
<a name="l00175"></a>00175
<a name="l00177"></a>00177 std::vector<DirectedEdge*> edges;
<a name="l00178"></a>00178
<a name="l00179"></a>00179 geom::CoordinateSequence* pts;
<a name="l00180"></a>00180
<a name="l00181"></a>00181 <span class="comment">// label stores the locations of each geometry on the</span>
<a name="l00182"></a>00182 <span class="comment">// face surrounded by this ring</span>
<a name="l00183"></a>00183 Label label;
<a name="l00184"></a>00184
<a name="l00185"></a>00185 geom::LinearRing *ring; <span class="comment">// the ring created for this EdgeRing</span>
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="keywordtype">bool</span> isHoleVar;
<a name="l00188"></a>00188
<a name="l00190"></a>00190 EdgeRing *shell;
<a name="l00191"></a>00191
<a name="l00192"></a>00192 <span class="keywordtype">void</span> computeMaxNodeDegree();
<a name="l00193"></a>00193
<a name="l00194"></a>00194 };
<a name="l00195"></a>00195
<a name="l00196"></a>00196 std::ostream& operator<< (std::ostream& os, <span class="keyword">const</span> EdgeRing& er);
<a name="l00197"></a>00197
<a name="l00198"></a>00198 } <span class="comment">// namespace geos.geomgraph</span>
<a name="l00199"></a>00199 } <span class="comment">// namespace geos</span>
<a name="l00200"></a>00200
<a name="l00201"></a>00201 <span class="comment">//#ifdef GEOS_INLINE</span>
<a name="l00202"></a>00202 <span class="comment">//# include "geos/geomgraph/EdgeRing.inl"</span>
<a name="l00203"></a>00203 <span class="comment">//#endif</span>
<a name="l00204"></a>00204
<a name="l00205"></a>00205 <span class="preprocessor">#endif // ifndef GEOS_GEOMGRAPH_EDGERING_H</span>
<a name="l00206"></a>00206 <span class="preprocessor"></span>
<a name="l00207"></a>00207 <span class="comment">/**********************************************************************</span>
<a name="l00208"></a>00208 <span class="comment"> * $Log$</span>
<a name="l00209"></a>00209 <span class="comment"> * Revision 1.9 2006/07/08 00:33:55 strk</span>
<a name="l00210"></a>00210 <span class="comment"> * * configure.in: incremented CAPI minor version, to avoid falling behind any future version from the 2.2. branch.</span>
<a name="l00211"></a>00211 <span class="comment"> * * source/geom/Geometry.cpp, source/geom/GeometryFactory.cpp,</span>
<a name="l00212"></a>00212 <span class="comment"> * source/geomgraph/EdgeRing.cpp,</span>
<a name="l00213"></a>00213 <span class="comment"> * source/headers/geos/geom/Geometry.h,</span>
<a name="l00214"></a>00214 <span class="comment"> * source/headers/geos/geom/GeometryFactory.h,</span>
<a name="l00215"></a>00215 <span class="comment"> * source/headers/geos/geom/GeometryFactory.inl,</span>
<a name="l00216"></a>00216 <span class="comment"> * source/headers/geos/geomgraph/EdgeRing.h:</span>
<a name="l00217"></a>00217 <span class="comment"> * updated doxygen comments (sync with JTS head).</span>
<a name="l00218"></a>00218 <span class="comment"> * * source/headers/geos/platform.h.in: include <inttypes.h></span>
<a name="l00219"></a>00219 <span class="comment"> * rather then <stdint.h></span>
<a name="l00220"></a>00220 <span class="comment"> *</span>
<a name="l00221"></a>00221 <span class="comment"> * Revision 1.8 2006/04/06 09:41:55 strk</span>
<a name="l00222"></a>00222 <span class="comment"> * Added operator<<, added pts!=NULL assertion in testInvariant() function</span>
<a name="l00223"></a>00223 <span class="comment"> *</span>
<a name="l00224"></a>00224 <span class="comment"> * Revision 1.7 2006/04/05 18:28:42 strk</span>
<a name="l00225"></a>00225 <span class="comment"> * Moved testInvariant() methods from private to public, added</span>
<a name="l00226"></a>00226 <span class="comment"> * some comments about them.</span>
<a name="l00227"></a>00227 <span class="comment"> *</span>
<a name="l00228"></a>00228 <span class="comment"> * Revision 1.6 2006/03/29 13:53:59 strk</span>
<a name="l00229"></a>00229 <span class="comment"> * EdgeRing equipped with Invariant testing function and lots of exceptional assertions. Removed useless heap allocations, and pointers usages.</span>
<a name="l00230"></a>00230 <span class="comment"> *</span>
<a name="l00231"></a>00231 <span class="comment"> * Revision 1.5 2006/03/27 16:02:34 strk</span>
<a name="l00232"></a>00232 <span class="comment"> * Added INL file for MinimalEdgeRing, added many debugging blocks,</span>
<a name="l00233"></a>00233 <span class="comment"> * fixed memory leak in ConnectedInteriorTester (bug #59)</span>
<a name="l00234"></a>00234 <span class="comment"> *</span>
<a name="l00235"></a>00235 <span class="comment"> * Revision 1.4 2006/03/24 09:52:41 strk</span>
<a name="l00236"></a>00236 <span class="comment"> * USE_INLINE => GEOS_INLINE</span>
<a name="l00237"></a>00237 <span class="comment"> *</span>
<a name="l00238"></a>00238 <span class="comment"> * Revision 1.3 2006/03/20 12:32:57 strk</span>
<a name="l00239"></a>00239 <span class="comment"> * Added note about responsibility of return from ::toPolygon</span>
<a name="l00240"></a>00240 <span class="comment"> *</span>
<a name="l00241"></a>00241 <span class="comment"> * Revision 1.2 2006/03/15 17:17:41 strk</span>
<a name="l00242"></a>00242 <span class="comment"> * Added missing forward declarations</span>
<a name="l00243"></a>00243 <span class="comment"> *</span>
<a name="l00244"></a>00244 <span class="comment"> * Revision 1.1 2006/03/09 16:46:49 strk</span>
<a name="l00245"></a>00245 <span class="comment"> * geos::geom namespace definition, first pass at headers split</span>
<a name="l00246"></a>00246 <span class="comment"> *</span>
<a name="l00247"></a>00247 <span class="comment"> **********************************************************************/</span>
<a name="l00248"></a>00248
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