GEOS  3.13.0dev
TaggedLineSegment.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/TaggedLineSegment.java rev. 1.1 (JTS-1.7)
16  *
17  **********************************************************************
18  *
19  * NOTES: Use of this class by DP simplification algorithms
20  * makes it useless for a TaggedLineSegment to store copies
21  * of coordinates. Using pointers would be good enough here.
22  * We don't do it to avoid having to break inheritance from
23  * LineSegment, which has copies intead. Wheter LineSegment
24  * itself should be refactored can be discussed.
25  * --strk 2006-04-12
26  *
27  **********************************************************************/
28 
29 #pragma once
30 
31 #include <geos/export.h>
32 #include <geos/geom/LineSegment.h> // for inheritance
33 
34 
35 // Forward declarations
36 namespace geos {
37 namespace geom {
38 class Coordinate;
39 class Geometry;
40 }
41 }
42 
43 namespace geos {
44 namespace simplify { // geos::simplify
45 
46 
53 class GEOS_DLL TaggedLineSegment: public geom::LineSegment {
54 
55 public:
56 
58  const geom::Coordinate& p1,
59  const geom::Geometry* parent,
60  std::size_t index);
61 
63  const geom::Coordinate& p1);
64 
66 
67  const geom::Geometry* getParent() const;
68 
69  std::size_t getIndex() const;
70 
71 private:
72 
73  const geom::Geometry* parent;
74 
75  std::size_t index;
76 
77 };
78 
79 
80 
81 } // namespace geos::simplify
82 } // namespace geos
83 
Coordinate is the lightweight class used to store coordinates.
Definition: Coordinate.h:216
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition: Geometry.h:186
Definition: LineSegment.h:61
A geom::LineSegment which is tagged with its location in a geom::Geometry.
Definition: TaggedLineSegment.h:53
Basic namespace for all GEOS functionalities.
Definition: Angle.h:25