GEOS: CentroidLine.h Source File

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CentroidLine.h
1 /**********************************************************************
2 *
3 * GEOS - Geometry Engine Open Source
4 * http://geos.osgeo.org
5 *
6 * Copyright (C) 2005-2006 Refractions Research Inc.
7 * Copyright (C) 2001-2002 Vivid Solutions 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 #ifndef GEOS_ALGORITHM_CENTROIDLINE_H
17 #define GEOS_ALGORITHM_CENTROIDLINE_H
18
19
20 #include <geos/export.h>
21 #include <geos/geom/Coordinate.h>
22
23 // Forward declarations
24 namespace geos {
25 namespace geom {
26 class Geometry;
27 class CoordinateSequence;
28 }
29 }
30
31 namespace geos {
32 namespace algorithm { // geos::algorithm
33
35 class GEOS_DLL CentroidLine {
36 private:
37
38 geom::Coordinate centSum;
39
40 double totalLength;
41
42 public:
43
44 CentroidLine()
45 :
46 centSum(0.0, 0.0),
47 totalLength(0.0)
48 {}
49
50 ~CentroidLine() {}
51
58 void add(const geom::Geometry *geom);
59
65 void add(const geom::CoordinateSequence *pts);
66
67 geom::Coordinate* getCentroid() const;
68
70 bool getCentroid(geom::Coordinate& ret) const;
71 };
72
73 } // namespace geos::algorithm
74 } // namespace geos
75
76
77 #endif // GEOS_ALGORITHM_CENTROIDLINE_H
geos::geom::Coordinate
Coordinate is the lightweight class used to store coordinates.
Definition: Coordinate.h:60
geos::algorithm::CentroidLine
Definition: CentroidLine.h:35
geos::geom::Geometry
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition: Geometry.h:167
geos
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25
geos::geom::CoordinateSequence
The internal representation of a list of coordinates inside a Geometry.
Definition: CoordinateSequence.h:59