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InteriorPointArea.h

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 

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