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geomgraph/DirectedEdgeStar.h
1 /**********************************************************************
2 * $Id: DirectedEdgeStar.h 2557 2009-06-08 09:30:55Z strk $
3 *
4 * GEOS - Geometry Engine Open Source
5 * http://geos.refractions.net
6 *
7 * Copyright (C) 2005-2006 Refractions Research Inc.
8 * Copyright (C) 2001-2002 Vivid Solutions Inc.
9 *
10 * This is free software; you can redistribute and/or modify it under
11 * the terms of the GNU Lesser General Public Licence as published
12 * by the Free Software Foundation.
13 * See the COPYING file for more information.
14 *
15 **********************************************************************
16 *
17 * Last port: geomgraph/DirectedEdgeStar.java rev. 1.4 (JTS-1.10)
18 *
19 **********************************************************************/
20
21
22 #ifndef GEOS_GEOMGRAPH_DIRECTEDEDGEENDSTAR_H
23 #define GEOS_GEOMGRAPH_DIRECTEDEDGEENDSTAR_H
24
25 #include <geos/export.h>
26 #include <set>
27 #include <string>
28 #include <vector>
29
30 #include <geos/geomgraph/EdgeEndStar.h> // for inheritance
31 #include <geos/geomgraph/Label.h> // for private member
32 #include <geos/geom/Coordinate.h> // for p0,p1
33
34 #include <geos/inline.h>
35
36 // Forward declarations
37 namespace geos {
38 namespace geomgraph {
39 class DirectedEdge;
40 class EdgeRing;
41 }
42 }
43
44 namespace geos {
45 namespace geomgraph { // geos.geomgraph
46
55 class GEOS_DLL DirectedEdgeStar: public EdgeEndStar {
56
57 public:
58
59 DirectedEdgeStar()
60 :
61 EdgeEndStar(),
62 resultAreaEdgeList(0),
63 label()
64 {}
65
66 ~DirectedEdgeStar() {
67 delete resultAreaEdgeList;
68 }
69
71 void insert(EdgeEnd *ee);
72
73 Label &getLabel() { return label; }
74
75 int getOutgoingDegree();
76
77 int getOutgoingDegree(EdgeRing *er);
78
79 DirectedEdge* getRightmostEdge();
80
85 void computeLabelling(std::vector<GeometryGraph*> *geom); // throw(TopologyException *);
86
91 void mergeSymLabels();
92
94 void updateLabelling(Label *nodeLabel);
95
96
114 void linkResultDirectedEdges(); // throw(TopologyException *);
115
116 void linkMinimalDirectedEdges(EdgeRing *er);
117
118 void linkAllDirectedEdges();
119
126 void findCoveredLineEdges();
127
133 void computeDepths(DirectedEdge *de);
134
135 std::string print();
136
137 private:
138
142 std::vector<DirectedEdge*> *resultAreaEdgeList;
143
144 Label label;
145
149 std::vector<DirectedEdge*>* getResultAreaEdges();
150
152 enum {
153 SCANNING_FOR_INCOMING=1,
154 LINKING_TO_OUTGOING
155 };
156
157 int computeDepths(EdgeEndStar::iterator startIt,
158 EdgeEndStar::iterator endIt, int startDepth);
159 };
160
161
162 } // namespace geos.geomgraph
163 } // namespace geos
164
165 //#ifdef GEOS_INLINE
166 //# include "geos/geomgraph/DirectedEdgeEndStar.inl"
167 //#endif
168
169 #endif // ifndef GEOS_GEOMGRAPH_DIRECTEDEDGEENDSTAR_H
170
171 /**********************************************************************
172 * $Log$
173 * Revision 1.4 2006/03/24 09:52:41 strk
174 * USE_INLINE => GEOS_INLINE
175 *
176 * Revision 1.3 2006/03/23 15:10:29 strk
177 * Dropped by-pointer TopologyException constructor, various small cleanups
178 *
179 * Revision 1.2 2006/03/15 17:17:41 strk
180 * Added missing forward declarations
181 *
182 * Revision 1.1 2006/03/09 16:46:49 strk
183 * geos::geom namespace definition, first pass at headers split
184 *
185 **********************************************************************/
186