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IntersectionAdder.h
1 /**********************************************************************
2 * $Id: IntersectionAdder.h 2778 2009-12-03 19:44:00Z mloskot $
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/IntersectionAdder.java rev. 1.6 (JTS-1.9)
17 *
18 **********************************************************************/
19
20 #ifndef GEOS_NODING_INTERSECTIONADDER_H
21 #define GEOS_NODING_INTERSECTIONADDER_H
22
23 #include <geos/export.h>
24
25 #include <vector>
26 #include <iostream>
27 #include <cstdlib> // for abs()
28
29 #include <geos/inline.h>
30
31 #include <geos/geom/Coordinate.h>
32 #include <geos/noding/SegmentIntersector.h> // for inheritance
33
34 // Forward declarations
35 namespace geos {
36 namespace geom {
37 class Coordinate;
38 }
39 namespace noding {
40 class SegmentString;
41 }
42 namespace algorithm {
43 class LineIntersector;
44 }
45 }
46
47 namespace geos {
48 namespace noding { // geos.noding
49
59 class GEOS_DLL IntersectionAdder: public SegmentIntersector {
60
61 private:
62
67 bool hasIntersectionVar;
68 bool hasProper;
69 bool hasProperInterior;
70 bool hasInterior;
71
72 // the proper intersection point found
73 const geom::Coordinate* properIntersectionPoint;
74
75 algorithm::LineIntersector& li;
76 bool isSelfIntersection;
77 //bool intersectionFound;
78
85 bool isTrivialIntersection(const SegmentString* e0, int segIndex0,
86 const SegmentString* e1, int segIndex1);
87
88 // Declare type as noncopyable
89 IntersectionAdder(const IntersectionAdder& other);
90 IntersectionAdder& operator=(const IntersectionAdder& rhs);
91
92 public:
93
94 int numIntersections;
95 int numInteriorIntersections;
96 int numProperIntersections;
97
98 // testing only
99 int numTests;
100
101 IntersectionAdder(algorithm::LineIntersector& newLi)
102 :
103 hasIntersectionVar(false),
104 hasProper(false),
105 hasProperInterior(false),
106 hasInterior(false),
107 properIntersectionPoint(NULL),
108 li(newLi),
109 numIntersections(0),
110 numInteriorIntersections(0),
111 numProperIntersections(0),
112 numTests(0)
113 {}
114
115 algorithm::LineIntersector& getLineIntersector() { return li; }
116
121 const geom::Coordinate* getProperIntersectionPoint() {
122 return properIntersectionPoint;
123 }
124
125 bool hasIntersection() { return hasIntersectionVar; }
126
135 bool hasProperIntersection() { return hasProper; }
136
142 bool hasProperInteriorIntersection() { return hasProperInterior; }
143
148 bool hasInteriorIntersection() { return hasInterior; }
149
150
160 void processIntersections(
161 SegmentString* e0, int segIndex0,
162 SegmentString* e1, int segIndex1);
163
164
165 static bool isAdjacentSegments(int i1, int i2) {
166 return std::abs(i1 - i2) == 1;
167 }
168
174 virtual bool isDone() const {
175 return false;
176 }
177 };
178
179
180 } // namespace geos.noding
181 } // namespace geos
182
183 //#ifdef GEOS_INLINE
184 //# include "geos/noding/IntersectionAdder.inl"
185 //#endif
186
187 #endif // GEOS_NODING_INTERSECTIONADDER_H
188
189 /**********************************************************************
190 * $Log$
191 * Revision 1.2 2006/03/24 09:52:41 strk
192 * USE_INLINE => GEOS_INLINE
193 *
194 * Revision 1.1 2006/03/09 16:46:49 strk
195 * geos::geom namespace definition, first pass at headers split
196 *
197 **********************************************************************/
198