CentroidPoint.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2005-2006 Refractions Research Inc.
 * Copyright (C) 2001-2002 Vivid Solutions Inc.
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation. 
 * See the COPYING file for more information.
 *
 **********************************************************************/
 
#ifndef GEOS_ALGORITHM_CENTROIDPOINT_H
#define GEOS_ALGORITHM_CENTROIDPOINT_H
 
#include <geos/export.h>
#include <geos/geom/Coordinate.h>
 
// Forward declarations
namespace geos {
        namespace geom {
                class Geometry;
        }
}
 
 
namespace geos {
namespace algorithm { // geos::algorithm

class GEOS_DLL CentroidPoint {
 
private:
 
        int ptCount;
 
        geom::Coordinate centSum;
 
public:
 
        CentroidPoint()
                :
                ptCount(0),
                centSum(0.0, 0.0)
        {}
 
        ~CentroidPoint()
        {}

        void add(const geom::Geometry *geom);
 
        void add(const geom::Coordinate *pt);
 
        geom::Coordinate* getCentroid() const;

        bool getCentroid(geom::Coordinate& ret) const;
};
 
} // namespace geos::algorithm
} // namespace geos
 
#endif // GEOS_ALGORITHM_CENTROIDPOINT_H