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<h1>Polygonizer.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: Polygonizer.h 2728 2009-11-19 19:57:36Z 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) 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: operation/polygonize/Polygonizer.java rev. 1.6 (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_OP_POLYGONIZE_POLYGONIZER_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_OP_POLYGONIZE_POLYGONIZER_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
<a name="l00027"></a>00027 <span class="preprocessor">#include <geos/geom/GeometryComponentFilter.h></span> <span class="comment">// for LineStringAdder inheritance</span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="preprocessor">#include <vector></span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="comment">// Forward declarations</span>
<a name="l00032"></a>00032 <span class="keyword">namespace </span>geos {
<a name="l00033"></a>00033 <span class="keyword">namespace </span>geom {
<a name="l00034"></a>00034 <span class="keyword">class </span>Geometry;
<a name="l00035"></a>00035 <span class="keyword">class </span>LineString;
<a name="l00036"></a>00036 <span class="keyword">class </span>Polygon;
<a name="l00037"></a>00037 }
<a name="l00038"></a>00038 <span class="keyword">namespace </span>operation {
<a name="l00039"></a>00039 <span class="keyword">namespace </span>polygonize {
<a name="l00040"></a>00040 <span class="keyword">class </span>EdgeRing;
<a name="l00041"></a>00041 <span class="keyword">class </span>PolygonizeGraph;
<a name="l00042"></a>00042 }
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044 }
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <span class="keyword">namespace </span>geos {
<a name="l00047"></a>00047 <span class="keyword">namespace </span>operation { <span class="comment">// geos::operation</span>
<a name="l00048"></a>00048 <span class="keyword">namespace </span>polygonize { <span class="comment">// geos::operation::polygonize</span>
<a name="l00049"></a>00049
<a name="l00070"></a><a class="code" href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html">00070</a> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html" title="Polygonizes a set of Geometrys which contain linework that represents the edges of a planar graph...">Polygonizer</a> {
<a name="l00071"></a>00071 <span class="keyword">private</span>:
<a name="l00075"></a>00075 <span class="keyword">class </span>LineStringAdder: <span class="keyword">public</span> geom::GeometryComponentFilter {
<a name="l00076"></a>00076 <span class="keyword">public</span>:
<a name="l00077"></a>00077 <a class="code" href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html" title="Polygonizes a set of Geometrys which contain linework that represents the edges of a planar graph...">Polygonizer</a> *pol;
<a name="l00078"></a>00078 LineStringAdder(<a class="code" href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html" title="Polygonizes a set of Geometrys which contain linework that represents the edges of a planar graph...">Polygonizer</a> *p);
<a name="l00079"></a>00079 <span class="comment">//void filter_rw(geom::Geometry *g);</span>
<a name="l00080"></a>00080 <span class="keywordtype">void</span> filter_ro(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a> * g);
<a name="l00081"></a>00081 };
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="comment">// default factory</span>
<a name="l00084"></a>00084 LineStringAdder *lineStringAdder;
<a name="l00085"></a>00085
<a name="l00091"></a>00091 <span class="keywordtype">void</span> add(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1LineString.html" title="Basic implementation of LineString.">geom::LineString</a> *line);
<a name="l00092"></a>00092
<a name="l00096"></a>00096 <span class="keywordtype">void</span> polygonize();
<a name="l00097"></a>00097
<a name="l00099"></a>00099 <span class="keywordtype">void</span> findValidRings(std::vector<EdgeRing*>& edgeRingList,
<a name="l00100"></a>00100 std::vector<EdgeRing*> *validEdgeRingList,
<a name="l00101"></a>00101 std::vector<geom::LineString*> *invalidRingList);
<a name="l00102"></a>00102
<a name="l00103"></a>00103 <span class="keywordtype">void</span> findShellsAndHoles(std::vector<EdgeRing*> *edgeRingList);
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="keyword">static</span> <span class="keywordtype">void</span> assignHolesToShells(std::vector<EdgeRing*> *holeList,
<a name="l00106"></a>00106 std::vector<EdgeRing*> *shellList);
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="keyword">static</span> <span class="keywordtype">void</span> assignHoleToShell(<a class="code" href="classgeos_1_1operation_1_1polygonize_1_1EdgeRing.html" title="Represents a ring of PolygonizeDirectedEdge which form a ring of a polygon. The ring may be either an...">EdgeRing</a> *holeER,
<a name="l00109"></a>00109 std::vector<EdgeRing*> *shellList);
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="keyword">protected</span>:
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <a class="code" href="classgeos_1_1operation_1_1polygonize_1_1PolygonizeGraph.html" title="Represents a planar graph of edges that can be used to compute a polygonization, and implements the a...">PolygonizeGraph</a> *graph;
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="comment">// initialize with empty collections, in case nothing is computed</span>
<a name="l00116"></a>00116 std::vector<const geom::LineString*> *dangles;
<a name="l00117"></a>00117 std::vector<const geom::LineString*> *cutEdges;
<a name="l00118"></a>00118 std::vector<geom::LineString*> *invalidRingLines;
<a name="l00119"></a>00119
<a name="l00120"></a>00120 std::vector<EdgeRing*> *holeList;
<a name="l00121"></a>00121 std::vector<EdgeRing*> *shellList;
<a name="l00122"></a>00122 std::vector<geom::Polygon*> *polyList;
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="keyword">public</span>:
<a name="l00125"></a>00125
<a name="l00130"></a>00130 <a class="code" href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html" title="Polygonizes a set of Geometrys which contain linework that represents the edges of a planar graph...">Polygonizer</a>();
<a name="l00131"></a>00131
<a name="l00132"></a>00132 ~<a class="code" href="classgeos_1_1operation_1_1polygonize_1_1Polygonizer.html" title="Polygonizes a set of Geometrys which contain linework that represents the edges of a planar graph...">Polygonizer</a>();
<a name="l00133"></a>00133
<a name="l00142"></a>00142 <span class="keywordtype">void</span> add(std::vector<geom::Geometry*> *geomList);
<a name="l00143"></a>00143
<a name="l00152"></a>00152 <span class="keywordtype">void</span> add(std::vector<const geom::Geometry*> *geomList);
<a name="l00153"></a>00153
<a name="l00162"></a>00162 <span class="keywordtype">void</span> add(<a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a> *g);
<a name="l00163"></a>00163
<a name="l00172"></a>00172 <span class="keywordtype">void</span> add(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a> *g);
<a name="l00173"></a>00173
<a name="l00181"></a>00181 std::vector<geom::Polygon*>* getPolygons();
<a name="l00182"></a>00182
<a name="l00188"></a>00188 std::vector<const geom::LineString*>* getDangles();
<a name="l00189"></a>00189
<a name="l00190"></a>00190
<a name="l00198"></a>00198 std::vector<const geom::LineString*>* getCutEdges();
<a name="l00199"></a>00199
<a name="l00209"></a>00209 std::vector<geom::LineString*>* getInvalidRingLines();
<a name="l00210"></a>00210
<a name="l00211"></a>00211 <span class="comment">// This seems to be needed by GCC 2.95.4</span>
<a name="l00212"></a>00212 <span class="keyword">friend</span> <span class="keyword">class </span>Polygonizer::LineStringAdder;
<a name="l00213"></a>00213 };
<a name="l00214"></a>00214
<a name="l00215"></a>00215 } <span class="comment">// namespace geos::operation::polygonize</span>
<a name="l00216"></a>00216 } <span class="comment">// namespace geos::operation</span>
<a name="l00217"></a>00217 } <span class="comment">// namespace geos</span>
<a name="l00218"></a>00218
<a name="l00219"></a>00219 <span class="preprocessor">#endif // GEOS_OP_POLYGONIZE_POLYGONIZER_H</span>
<a name="l00220"></a>00220 <span class="preprocessor"></span>
<a name="l00221"></a>00221 <span class="comment">/**********************************************************************</span>
<a name="l00222"></a>00222 <span class="comment"> * $Log$</span>
<a name="l00223"></a>00223 <span class="comment"> * Revision 1.2 2006/06/12 17:15:29 strk</span>
<a name="l00224"></a>00224 <span class="comment"> * Removed unused parameters warning</span>
<a name="l00225"></a>00225 <span class="comment"> *</span>
<a name="l00226"></a>00226 <span class="comment"> * Revision 1.1 2006/03/22 11:19:06 strk</span>
<a name="l00227"></a>00227 <span class="comment"> * opPolygonize.h headers split.</span>
<a name="l00228"></a>00228 <span class="comment"> *</span>
<a name="l00229"></a>00229 <span class="comment"> **********************************************************************/</span>
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