GEOS
3.3.6
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00001 /********************************************************************** 00002 * $Id: InteriorPointArea.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_INTERIORPOINTAREA_H 00018 #define GEOS_ALGORITHM_INTERIORPOINTAREA_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 class LineString; 00028 class GeometryFactory; 00029 class GeometryCollection; 00030 } 00031 } 00032 00033 00034 namespace geos { 00035 namespace algorithm { // geos::algorithm 00036 00054 class GEOS_DLL InteriorPointArea { 00055 00056 private: 00057 00058 bool foundInterior; 00059 00060 const geom::GeometryFactory *factory; 00061 00062 geom::Coordinate interiorPoint; 00063 00064 double maxWidth; 00065 00066 void add(const geom::Geometry *geom); 00067 00068 const geom::Geometry *widestGeometry(const geom::Geometry *geometry); 00069 00070 const geom::Geometry *widestGeometry(const geom::GeometryCollection *gc); 00071 00072 geom::LineString *horizontalBisector(const geom::Geometry *geometry); 00073 00074 public: 00075 00076 InteriorPointArea(const geom::Geometry *g); 00077 00078 ~InteriorPointArea(); 00079 00080 bool getInteriorPoint(geom::Coordinate& ret) const; 00081 00089 void addPolygon(const geom::Geometry *geometry); 00090 00091 }; 00092 00093 } // namespace geos::algorithm 00094 } // namespace geos 00095 00096 #endif // GEOS_ALGORITHM_INTERIORPOINTAREA_H 00097 00098 /********************************************************************** 00099 * $Log$ 00100 * Revision 1.1 2006/03/09 16:46:48 strk 00101 * geos::geom namespace definition, first pass at headers split 00102 * 00103 **********************************************************************/ 00104