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CentroidLine.h
1 /**********************************************************************
2 * $Id: CentroidLine.h 2556 2009-06-06 22:22:28Z strk $
3 *
4 * GEOS - Geometry Engine Open Source
5 * http://geos.refractions.net
6 *
7 * Copyright (C) 2005-2006 Refractions Research Inc.
8 * Copyright (C) 2001-2002 Vivid Solutions Inc.
9 *
10 * This is free software; you can redistribute and/or modify it under
11 * the terms of the GNU Lesser General Public Licence as published
12 * by the Free Software Foundation.
13 * See the COPYING file for more information.
14 *
15 **********************************************************************/
16
17 #ifndef GEOS_ALGORITHM_CENTROIDLINE_H
18 #define GEOS_ALGORITHM_CENTROIDLINE_H
19
20
21 #include <geos/export.h>
22 #include <geos/geom/Coordinate.h>
23
24 // Forward declarations
25 namespace geos {
26 namespace geom {
27 class Geometry;
28 class CoordinateSequence;
29 }
30 }
31
32 namespace geos {
33 namespace algorithm { // geos::algorithm
34
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
78
79 /**********************************************************************
80 * $Log$
81 * Revision 1.1 2006/03/09 16:46:48 strk
82 * geos::geom namespace definition, first pass at headers split
83 *
84 **********************************************************************/
85