GEOS 3.2.1
|
00001 /********************************************************************** 00002 * $Id: CentroidLine.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_CENTROIDLINE_H 00018 #define GEOS_ALGORITHM_CENTROIDLINE_H 00019 00020 00021 #include <geos/export.h> 00022 #include <geos/geom/Coordinate.h> 00023 00024 // Forward declarations 00025 namespace geos { 00026 namespace geom { 00027 class Geometry; 00028 class CoordinateSequence; 00029 } 00030 } 00031 00032 namespace geos { 00033 namespace algorithm { // geos::algorithm 00034 00035 class GEOS_DLL CentroidLine { 00036 private: 00037 00038 geom::Coordinate centSum; 00039 00040 double totalLength; 00041 00042 public: 00043 00044 CentroidLine() 00045 : 00046 centSum(0.0, 0.0), 00047 totalLength(0.0) 00048 {} 00049 00050 ~CentroidLine() {} 00051 00058 void add(const geom::Geometry *geom); 00059 00065 void add(const geom::CoordinateSequence *pts); 00066 00067 geom::Coordinate* getCentroid() const; 00068 00070 bool getCentroid(geom::Coordinate& ret) const; 00071 }; 00072 00073 } // namespace geos::algorithm 00074 } // namespace geos 00075 00076 00077 #endif // GEOS_ALGORITHM_CENTROIDLINE_H 00078 00079 /********************************************************************** 00080 * $Log$ 00081 * Revision 1.1 2006/03/09 16:46:48 strk 00082 * geos::geom namespace definition, first pass at headers split 00083 * 00084 **********************************************************************/ 00085