GEOS 3.9.1
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/NodingIntersectionFinder.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
30namespace geos {
31namespace noding {
32class SegmentString;
33}
34}
35
36namespace geos {
37namespace noding { // geos.noding
38
61
62public:
63
64 FastNodingValidator(std::vector<noding::SegmentString*>& newSegStrings)
65 :
66 li(), // robust...
67 segStrings(newSegStrings),
68 segInt(),
69 isValidVar(true)
70 {
71 }
72
79 bool
81 {
82 execute();
83 return isValidVar;
84 }
85
92 std::string getErrorMessage() const;
93
101
102private:
103
105
106 std::vector<noding::SegmentString*>& segStrings;
107
108 std::unique_ptr<NodingIntersectionFinder> segInt;
109
110 bool isValidVar;
111
112 void
113 execute()
114 {
115 if(segInt.get() != nullptr) {
116 return;
117 }
118 checkInteriorIntersections();
119 }
120
121 void checkInteriorIntersections();
122
123 // Declare type as noncopyable
124 FastNodingValidator(const FastNodingValidator& other) = delete;
125 FastNodingValidator& operator=(const FastNodingValidator& rhs) = delete;
126};
127
128} // namespace geos.noding
129} // namespace geos
130
131#endif // GEOS_NODING_FASTNODINGVALIDATOR_H
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:60
void checkValid()
Checks for an intersection and throws a TopologyException if one is found.
std::string getErrorMessage() const
Returns an error message indicating the segments containing the intersection.
bool isValid()
Checks for an intersection and reports if one is found.
Definition: FastNodingValidator.h:80
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:26