GEOS  3.3.3
SubgraphDepthLocater.h
1 /**********************************************************************
2  * $Id: SubgraphDepthLocater.h 3245 2011-02-23 16:46:10Z strk $
3  *
4  * GEOS - Geometry Engine Open Source
5  * http://geos.refractions.net
6  *
7  * Copyright (C) 2006 Refractions Research Inc.
8  *
9  * This is free software; you can redistribute and/or modify it under
10  * the terms of the GNU Lesser General Public Licence as published
11  * by the Free Software Foundation.
12  * See the COPYING file for more information.
13  *
14  **********************************************************************
15  *
16  * Last port: operation/buffer/SubgraphDepthLocater.java r320 (JTS-1.12)
17  *
18  **********************************************************************/
19 
20 #ifndef GEOS_OP_BUFFER_SUBGRAPHDEPTHLOCATER_H
21 #define GEOS_OP_BUFFER_SUBGRAPHDEPTHLOCATER_H
22 
23 #include <geos/export.h>
24 
25 #include <vector>
26 
27 #include <geos/geom/LineSegment.h> // for composition
28 
29 // Forward declarations
30 namespace geos {
31  namespace geom {
32  class Coordinate;
33  }
34  namespace geomgraph {
35  class DirectedEdge;
36  }
37  namespace operation {
38  namespace buffer {
39  class BufferSubgraph;
40  class DepthSegment;
41  }
42  }
43 }
44 
45 namespace geos {
46 namespace operation { // geos.operation
47 namespace buffer { // geos.operation.buffer
48 
60 class GEOS_DLL SubgraphDepthLocater {
61 
62 public:
63 
64  SubgraphDepthLocater(std::vector<BufferSubgraph*> *newSubgraphs)
65  :
66  subgraphs(newSubgraphs)
67  {}
68 
70 
71  int getDepth(const geom::Coordinate &p);
72 
73 private:
74 
75  std::vector<BufferSubgraph*> *subgraphs;
76 
78 
87  void findStabbedSegments(const geom::Coordinate &stabbingRayLeftPt,
88  std::vector<DepthSegment*>& stabbedSegments);
89 
99  void findStabbedSegments(const geom::Coordinate &stabbingRayLeftPt,
100  std::vector<geomgraph::DirectedEdge*> *dirEdges,
101  std::vector<DepthSegment*>& stabbedSegments);
102 
112  void findStabbedSegments(const geom::Coordinate &stabbingRayLeftPt,
113  geomgraph::DirectedEdge *dirEdge,
114  std::vector<DepthSegment*>& stabbedSegments);
115 
116 };
117 
118 
119 } // namespace geos::operation::buffer
120 } // namespace geos::operation
121 } // namespace geos
122 
123 #endif // ndef GEOS_OP_BUFFER_SUBGRAPHDEPTHLOCATER_H
124 
125 /**********************************************************************
126  * $Log$
127  * Revision 1.2 2006/03/15 15:50:11 strk
128  * const correctness, cleanups
129  *
130  * Revision 1.1 2006/03/14 00:19:40 strk
131  * opBuffer.h split, streamlined headers in some (not all) files in operation/buffer/
132  *
133  **********************************************************************/
134