CentroidLine.h

00001 /**********************************************************************
00002  * $Id: CentroidLine.h 1820 2006-09-06 16:54:23Z mloskot $
00003  *
00004  * GEOS - Geometry Engine Open Source
00005  * http://geos.refractions.net
00006  *
00007  * Copyright (C) 2005-2006 Refractions Research Inc.
00008  * Copyright (C) 2001-2002 Vivid Solutions Inc.
00009  *
00010  * This is free software; you can redistribute and/or modify it under
00011  * the terms of the GNU Lesser General Public Licence as published
00012  * by the Free Software Foundation. 
00013  * See the COPYING file for more information.
00014  *
00015  **********************************************************************/
00016 
00017 #ifndef GEOS_ALGORITHM_CENTROIDLINE_H
00018 #define GEOS_ALGORITHM_CENTROIDLINE_H
00019 
00020 
00021 #include <geos/geom/Coordinate.h>
00022 
00023 // Forward declarations
00024 namespace geos {
00025         namespace geom {
00026                 class Geometry;
00027                 class CoordinateSequence;
00028         }
00029 }
00030 
00031 namespace geos {
00032 namespace algorithm { // geos::algorithm
00033 
00034 class CentroidLine {
00035 private:
00036 
00037         geom::Coordinate centSum;
00038 
00039         double totalLength;
00040 
00041 public:
00042 
00043         CentroidLine()
00044                 :
00045                 centSum(0.0, 0.0),
00046                 totalLength(0.0)
00047         {}
00048 
00049         ~CentroidLine() {}
00050 
00057         void add(const geom::Geometry *geom);
00058 
00064         void add(const geom::CoordinateSequence *pts);
00065 
00066         geom::Coordinate* getCentroid() const;
00067 
00069         bool getCentroid(geom::Coordinate& ret) const;
00070 };
00071 
00072 } // namespace geos::algorithm
00073 } // namespace geos
00074 
00075 
00076 #endif // GEOS_ALGORITHM_CENTROIDLINE_H
00077 
00078 /**********************************************************************
00079  * $Log$
00080  * Revision 1.1  2006/03/09 16:46:48  strk
00081  * geos::geom namespace definition, first pass at headers split
00082  *
00083  **********************************************************************/
00084 

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