GEOS: InteriorPointArea.h Source File

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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