GEOS  3.3.3
QuadtreeNestedRingTester.h
1 /**********************************************************************
2  * $Id: QuadtreeNestedRingTester.h 3255 2011-03-01 17:56:10Z mloskot $
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: operation/valid/QuadtreeNestedRingTester.java rev. 1.12 (JTS-1.10)
18  *
19  **********************************************************************/
20 
21 #ifndef GEOS_OP_QUADTREENESTEDRINGTESTER_H
22 #define GEOS_OP_QUADTREENESTEDRINGTESTER_H
23 
24 #include <geos/export.h>
25 
26 #include <geos/geom/Envelope.h> // for composition
27 
28 #include <vector>
29 
30 #ifdef _MSC_VER
31 #pragma warning(push)
32 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
33 #endif
34 
35 // Forward declarations
36 namespace geos {
37  namespace geom {
38  class LinearRing;
39  class Coordinate;
40  }
41  namespace index {
42  namespace quadtree {
43  class Quadtree;
44  }
45  }
46  namespace geomgraph {
47  class GeometryGraph;
48  }
49 }
50 
51 namespace geos {
52 namespace operation { // geos::operation
53 namespace valid { // geos::operation::valid
54 
61 class GEOS_DLL QuadtreeNestedRingTester {
62 public:
63 
65  QuadtreeNestedRingTester(geomgraph::GeometryGraph* newGraph);
66 
68 
69  /*
70  * Be aware that the returned Coordinate (if != NULL)
71  * will point to storage owned by one of the LinearRing
72  * previously added. If you destroy them, this
73  * will point to an invalid memory address.
74  */
75  geom::Coordinate* getNestedPoint();
76 
77  void add(const geom::LinearRing* ring);
78 
79  bool isNonNested();
80 
81 private:
82 
83  geomgraph::GeometryGraph* graph; // used to find non-node vertices
84 
85  std::vector<const geom::LinearRing*> rings;
86 
87  geom::Envelope totalEnv;
88 
90 
91  geom::Coordinate* nestedPt;
92 
93  void buildQuadtree();
94 };
95 
96 } // namespace geos::operation::valid
97 } // namespace geos::operation
98 } // namespace geos
99 
100 #ifdef _MSC_VER
101 #pragma warning(pop)
102 #endif
103 
104 #endif // GEOS_OP_QUADTREENESTEDRINGTESTER_H
105 
106 /**********************************************************************
107  * $Log$
108  * Revision 1.2 2006/03/29 11:48:53 strk
109  * Removed useless heap allocations in construction, enforced const correctness
110  *
111  * Revision 1.1 2006/03/20 16:57:44 strk
112  * spatialindex.h and opValid.h headers split
113  *
114  **********************************************************************/
115