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MCIndexSnapRounder.h
1 /**********************************************************************
2 * $Id: MCIndexSnapRounder.h 3524 2011-11-30 09:49:58Z 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: noding/snapround/MCIndexSnapRounder.java r480 (JTS-1.12)
17 *
18 **********************************************************************/
19
20 #ifndef GEOS_NODING_SNAPROUND_MCINDEXSNAPROUNDER_H
21 #define GEOS_NODING_SNAPROUND_MCINDEXSNAPROUNDER_H
22
23 #include <geos/export.h>
24
25 #include <geos/noding/Noder.h> // for inheritance
26 #include <geos/noding/NodedSegmentString.h> // for inlines
27 #include <geos/noding/snapround/MCIndexPointSnapper.h> // for inines
28 #include <geos/algorithm/LineIntersector.h> // for composition
29 #include <geos/geom/Coordinate.h> // for use in vector
30 #include <geos/geom/PrecisionModel.h> // for inlines
31
32 #include <vector>
33
34 #ifdef _MSC_VER
35 #pragma warning(push)
36 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
37 #endif
38
39 // Forward declarations
40 namespace geos {
41 namespace algorithm {
42 class LineIntersector;
43 }
44 namespace noding {
45 class SegmentString;
46 class MCIndexNoder;
47 }
48 }
49
50 namespace geos {
51 namespace noding { // geos::noding
52 namespace snapround { // geos::noding::snapround
53
54
75 class GEOS_DLL MCIndexSnapRounder: public Noder { // implments Noder
76
77 public:
78
79 MCIndexSnapRounder(geom::PrecisionModel& nPm)
80 :
81 pm(nPm),
82 scaleFactor(nPm.getScale()),
83 pointSnapper(0)
84 {
85 li.setPrecisionModel(&pm);
86 }
87
88 std::vector<SegmentString*>* getNodedSubstrings() const {
89 return NodedSegmentString::getNodedSubstrings(*nodedSegStrings);
90 }
91
92 void computeNodes(std::vector<SegmentString*>* segStrings);
93
102 void computeVertexSnaps(std::vector<SegmentString*>& edges);
103
104 private:
105
107 geom::PrecisionModel& pm;
108
109 algorithm::LineIntersector li;
110
111 double scaleFactor;
112
113 std::vector<SegmentString*>* nodedSegStrings;
114
115 std::auto_ptr<MCIndexPointSnapper> pointSnapper;
116
117 void snapRound(MCIndexNoder& noder, std::vector<SegmentString*>* segStrings);
118
119
127 void findInteriorIntersections(MCIndexNoder& noder,
128 std::vector<SegmentString*>* segStrings,
129 std::vector<geom::Coordinate>& intersections);
130
135 void computeIntersectionSnaps(std::vector<geom::Coordinate>& snapPts);
136
141 void computeVertexSnaps(NodedSegmentString* e);
142
143 void checkCorrectness(std::vector<SegmentString*>& inputSegmentStrings);
144
145 // Declare type as noncopyable
146 MCIndexSnapRounder(const MCIndexSnapRounder& other);
147 MCIndexSnapRounder& operator=(const MCIndexSnapRounder& rhs);
148 };
149
150 } // namespace geos::noding::snapround
151 } // namespace geos::noding
152 } // namespace geos
153
154 #ifdef _MSC_VER
155 #pragma warning(pop)
156 #endif
157
158 #endif // GEOS_NODING_SNAPROUND_MCINDEXSNAPROUNDER_H
159
160 /**********************************************************************
161 * $Log$
162 * Revision 1.2 2006/03/24 09:52:41 strk
163 * USE_INLINE => GEOS_INLINE
164 *
165 * Revision 1.1 2006/03/14 12:55:56 strk
166 * Headers split: geomgraphindex.h, nodingSnapround.h
167 *
168 **********************************************************************/
169