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MaximalEdgeRing.h
1 /**********************************************************************
2 *
3 * GEOS - Geometry Engine Open Source
4 * http://geos.osgeo.org
5 *
6 * Copyright (C) 2006 Refractions Research Inc.
7 *
8 * This is free software; you can redistribute and/or modify it under
9 * the terms of the GNU Lesser General Public Licence as published
10 * by the Free Software Foundation.
11 * See the COPYING file for more information.
12 *
13 **********************************************************************
14 *
15 * Last port: operation/overlay/MaximalEdgeRing.java rev. 1.15 (JTS-1.10)
16 *
17 **********************************************************************/
18
19 #ifndef GEOS_OP_OVERLAY_MAXIMALEDGERING_H
20 #define GEOS_OP_OVERLAY_MAXIMALEDGERING_H
21
22 #include <geos/export.h>
23
24 #include <vector>
25
26 #include <geos/geomgraph/EdgeRing.h> // for inheritance
27
28 // Forward declarations
29 namespace geos {
30 namespace geom {
31 class GeometryFactory;
32 }
33 namespace geomgraph {
34 class DirectedEdge;
35 //class EdgeRing;
36 }
37 namespace operation {
38 namespace overlay {
39 class MinimalEdgeRing;
40 }
41 }
42 }
43
44 namespace geos {
45 namespace operation { // geos::operation
46 namespace overlay { // geos::operation::overlay
47
66 class GEOS_DLL MaximalEdgeRing: public geomgraph::EdgeRing {
67
68 public:
69
70 MaximalEdgeRing(geomgraph::DirectedEdge *start,
71 const geom::GeometryFactory *geometryFactory);
72 // throw(const TopologyException &)
73
74 virtual ~MaximalEdgeRing();
75
76 geomgraph::DirectedEdge* getNext(geomgraph::DirectedEdge *de);
77
78 void setEdgeRing(geomgraph::DirectedEdge* de, geomgraph::EdgeRing* er);
79
86 std::vector<MinimalEdgeRing*>* buildMinimalRings();
87
92 void buildMinimalRings(std::vector<MinimalEdgeRing*>& minEdgeRings);
93 void buildMinimalRings(std::vector<EdgeRing*>& minEdgeRings);
94
99 void linkDirectedEdgesForMinimalEdgeRings();
100 };
101
102
103 } // namespace geos::operation::overlay
104 } // namespace geos::operation
105 } // namespace geos
106
107 #endif // ndef GEOS_OP_OVERLAY_MAXIMALEDGERING_H