GEOS 3.4.2

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CentroidPoint.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_CENTROIDPOINT_H
17 #define GEOS_ALGORITHM_CENTROIDPOINT_H
18
19 #include <geos/export.h>
20 #include <geos/geom/Coordinate.h>
21
22 // Forward declarations
23 namespace geos {
24 namespace geom {
25 class Geometry;
26 }
27 }
28
29
30 namespace geos {
31 namespace algorithm { // geos::algorithm
32
34 class GEOS_DLL CentroidPoint {
35
36 private:
37
38 int ptCount;
39
40 geom::Coordinate centSum;
41
42 public:
43
44 CentroidPoint()
45 :
46 ptCount(0),
47 centSum(0.0, 0.0)
48 {}
49
50 ~CentroidPoint()
51 {}
52
59 void add(const geom::Geometry *geom);
60
61 void add(const geom::Coordinate *pt);
62
63 geom::Coordinate* getCentroid() const;
64
66 bool getCentroid(geom::Coordinate& ret) const;
67 };
68
69 } // namespace geos::algorithm
70 } // namespace geos
71
72 #endif // GEOS_ALGORITHM_CENTROIDPOINT_H