GEOS
3.2.3
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00001 /********************************************************************** 00002 * $Id: CentroidPoint.h 2556 2009-06-06 22:22:28Z strk $ 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_CENTROIDPOINT_H 00018 #define GEOS_ALGORITHM_CENTROIDPOINT_H 00019 00020 #include <geos/export.h> 00021 #include <geos/geom/Coordinate.h> 00022 00023 // Forward declarations 00024 namespace geos { 00025 namespace geom { 00026 class Geometry; 00027 } 00028 } 00029 00030 00031 namespace geos { 00032 namespace algorithm { // geos::algorithm 00033 00034 class GEOS_DLL CentroidPoint { 00035 00036 private: 00037 00038 int ptCount; 00039 00040 geom::Coordinate centSum; 00041 00042 public: 00043 00044 CentroidPoint() 00045 : 00046 ptCount(0), 00047 centSum(0.0, 0.0) 00048 {} 00049 00050 ~CentroidPoint() 00051 {} 00052 00059 void add(const geom::Geometry *geom); 00060 00061 void add(const geom::Coordinate *pt); 00062 00063 geom::Coordinate* getCentroid() const; 00064 00066 bool getCentroid(geom::Coordinate& ret) const; 00067 }; 00068 00069 } // namespace geos::algorithm 00070 } // namespace geos 00071 00072 #endif // GEOS_ALGORITHM_CENTROIDPOINT_H 00073 00074 /********************************************************************** 00075 * $Log$ 00076 * Revision 1.1 2006/03/09 16:46:48 strk 00077 * geos::geom namespace definition, first pass at headers split 00078 * 00079 **********************************************************************/ 00080