GEOS  3.4.2
FastNodingValidator.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: noding/FastNodingValidator.java rev. ??? (JTS-1.8)
16  *
17  **********************************************************************/
18 
19 #ifndef GEOS_NODING_FASTNODINGVALIDATOR_H
20 #define GEOS_NODING_FASTNODINGVALIDATOR_H
21 
22 #include <geos/noding/SingleInteriorIntersectionFinder.h> // for composition
23 #include <geos/algorithm/LineIntersector.h> // for composition
24 
25 #include <memory>
26 #include <string>
27 #include <cassert>
28 
29 // Forward declarations
30 namespace geos {
31  namespace noding {
32  class SegmentString;
33  }
34 }
35 
36 namespace geos {
37 namespace noding { // geos.noding
38 
54 {
55 
56 public:
57 
58  FastNodingValidator(std::vector<noding::SegmentString*>& newSegStrings)
59  :
60  li(), // robust...
61  segStrings(newSegStrings),
62  segInt(),
63  isValidVar(true)
64  {
65  }
66 
73  bool isValid()
74  {
75  execute();
76  return isValidVar;
77  }
78 
85  std::string getErrorMessage() const;
86 
93  void checkValid();
94 
95 private:
96 
98 
99  std::vector<noding::SegmentString*>& segStrings;
100 
101  std::auto_ptr<SingleInteriorIntersectionFinder> segInt;
102 
103  bool isValidVar;
104 
105  void execute()
106  {
107  if (segInt.get() != NULL) return;
108  checkInteriorIntersections();
109  }
110 
111  void checkInteriorIntersections();
112 
113  // Declare type as noncopyable
114  FastNodingValidator(const FastNodingValidator& other);
115  FastNodingValidator& operator=(const FastNodingValidator& rhs);
116 };
117 
118 } // namespace geos.noding
119 } // namespace geos
120 
121 #endif // GEOS_NODING_FASTNODINGVALIDATOR_H
std::string getErrorMessage() const
A LineIntersector is an algorithm that can both test whether two line segments intersect and compute ...
Definition: LineIntersector.h:49
Validates that a collection of SegmentStrings is correctly noded.
Definition: FastNodingValidator.h:53
bool isValid()
Definition: FastNodingValidator.h:73