GEOS 3.9.1
TaggedLinesSimplifier.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 Licence as published
10 * by the Free Software Foundation.
11 * See the COPYING file for more information.
12 *
13 **********************************************************************
14 *
15 * Last port: simplify/TaggedLinesSimplifier.java rev. 1.4 (JTS-1.7.1)
16 *
17 **********************************************************************
18 *
19 * NOTES: changed from JTS design adding a private
20 * TaggedLineStringSimplifier member and making
21 * simplify(collection) method become a templated
22 * function.
23 *
24 **********************************************************************/
25
26#ifndef GEOS_SIMPLIFY_TAGGEDLINESSIMPLIFIER_H
27#define GEOS_SIMPLIFY_TAGGEDLINESSIMPLIFIER_H
28
29#include <geos/export.h>
30#include <vector>
31#include <memory>
32#include <cassert>
33
34#include <geos/simplify/LineSegmentIndex.h> // for templated function body
35#include <geos/simplify/TaggedLineStringSimplifier.h>
36
37#ifdef _MSC_VER
38#pragma warning(push)
39#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
40#endif
41
42// Forward declarations
43namespace geos {
44namespace simplify {
45class TaggedLineString;
46}
47}
48
49namespace geos {
50namespace simplify { // geos::simplify
51
56class GEOS_DLL TaggedLinesSimplifier {
57
58public:
59
61
70 void setDistanceTolerance(double tolerance);
71
81 template <class iterator_type>
82 void
84 iterator_type begin,
85 iterator_type end)
86 {
87 // add lines to the index
88 for(iterator_type it = begin; it != end; ++it) {
89 assert(*it);
90 inputIndex->add(*(*it));
91 }
92
93 // Simplify lines
94 for(iterator_type it = begin; it != end; ++it) {
95 assert(*it);
96 simplify(*(*it));
97 }
98 }
99
100
101private:
102
103 void simplify(TaggedLineString& line);
104
105 std::unique_ptr<LineSegmentIndex> inputIndex;
106
107 std::unique_ptr<LineSegmentIndex> outputIndex;
108
109 std::unique_ptr<TaggedLineStringSimplifier> taggedlineSimplifier;
110};
111
112} // namespace geos::simplify
113} // namespace geos
114
115#ifdef _MSC_VER
116#pragma warning(pop)
117#endif
118
119#endif // GEOS_SIMPLIFY_TAGGEDLINESSIMPLIFIER_H
Contains and owns a list of TaggedLineSegments.
Definition TaggedLineString.h:58
Simplifies a collection of TaggedLineStrings, preserving topology (in the sense that no new intersect...
Definition TaggedLinesSimplifier.h:56
void setDistanceTolerance(double tolerance)
Sets the distance tolerance for the simplification.
void simplify(iterator_type begin, iterator_type end)
Simplify a set of TaggedLineStrings.
Definition TaggedLinesSimplifier.h:83
Basic namespace for all GEOS functionalities.
Definition IndexedNestedRingTester.h:26