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Polygon.h

00001 /**********************************************************************
00002  * $Id: Polygon.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  * Last port: geom/Polygon.java rev. 1.50
00018  *
00019  **********************************************************************/
00020 
00021 #ifndef GEOS_GEOM_POLYGON_H
00022 #define GEOS_GEOM_POLYGON_H
00023 
00024 #include <geos/export.h>
00025 #include <string>
00026 #include <vector>
00027 #include <geos/platform.h>
00028 #include <geos/geom/Geometry.h>
00029 #include <geos/geom/Envelope.h> // for proper use of auto_ptr<>
00030 #include <geos/geom/Dimension.h> // for Dimension::DimensionType
00031 
00032 #include <geos/inline.h>
00033 
00034 #include <memory> // for auto_ptr
00035 
00036 // Forward declarations
00037 namespace geos {
00038         namespace geom { // geos::geom
00039                 class Coordinate;
00040                 class CoordinateArraySequence;
00041                 class CoordinateSequenceFilter;
00042                 class LinearRing;
00043                 class LineString;
00044         }
00045 }
00046 
00047 namespace geos {
00048 namespace geom { // geos::geom
00049 
00065 class GEOS_DLL Polygon: public Geometry{
00066 
00067 public:
00068 
00069         friend class GeometryFactory;
00070 
00072         typedef std::vector<const Polygon *> ConstVect;
00073 
00074         virtual ~Polygon();
00075 
00082         virtual Geometry *clone() const { return new Polygon(*this); }
00083 
00084         CoordinateSequence* getCoordinates() const;
00085 
00086         size_t getNumPoints() const;
00087 
00089         Dimension::DimensionType getDimension() const;
00090 
00092         int getBoundaryDimension() const;
00093 
00100         Geometry* getBoundary() const;
00101 
00102         bool isEmpty() const;
00103 
00110         bool isSimple() const;
00111         
00113         const LineString* getExteriorRing() const;
00114 
00116         size_t getNumInteriorRing() const;
00117 
00119         const LineString* getInteriorRingN(size_t n) const;
00120 
00121         std::string getGeometryType() const;
00122         virtual GeometryTypeId getGeometryTypeId() const;
00123         bool equalsExact(const Geometry *other, double tolerance=0) const;
00124         void apply_rw(const CoordinateFilter *filter);
00125         void apply_ro(CoordinateFilter *filter) const;
00126         void apply_rw(GeometryFilter *filter);
00127         void apply_ro(GeometryFilter *filter) const;
00128         void apply_rw(CoordinateSequenceFilter& filter);
00129         void apply_ro(CoordinateSequenceFilter& filter) const;
00130 
00131         Geometry* convexHull() const;
00132 
00133         void normalize();
00134 
00135         int compareToSameClass(const Geometry *p) const; //was protected
00136 
00137         const Coordinate* getCoordinate() const;
00138 
00139         double getArea() const;
00140 
00142         double getLength() const;
00143 
00144         void apply_rw(GeometryComponentFilter *filter);
00145 
00146         void apply_ro(GeometryComponentFilter *filter) const;
00147 
00148         bool isRectangle() const;
00149 
00150 protected:
00151 
00152 
00153         Polygon(const Polygon &p);
00154 
00173         Polygon(LinearRing *newShell, std::vector<Geometry *> *newHoles,
00174                 const GeometryFactory *newFactory);
00175 
00176         LinearRing *shell;
00177 
00178         std::vector<Geometry *> *holes; //Actually vector<LinearRing *>
00179 
00180         Envelope::AutoPtr computeEnvelopeInternal() const;
00181 
00182 private:
00183 
00184         void normalize(LinearRing *ring, bool clockwise);
00185 };
00186 
00187 } // namespace geos::geom
00188 } // namespace geos
00189 
00190 //#ifdef GEOS_INLINE
00191 //# include "geos/geom/Polygon.inl"
00192 //#endif
00193 
00194 #endif // ndef GEOS_GEOM_POLYGON_H
00195 
00196 /**********************************************************************
00197  * $Log$
00198  * Revision 1.7  2006/06/08 17:58:57  strk
00199  * Polygon::getNumInteriorRing() return size_t, Polygon::interiorRingN() takes size_t.
00200  *
00201  * Revision 1.6  2006/05/04 15:49:39  strk
00202  * updated all Geometry::getDimension() methods to return Dimension::DimensionType (closes bug#93)
00203  *
00204  * Revision 1.5  2006/04/28 10:55:39  strk
00205  * Geometry constructors made protected, to ensure all constructions use GeometryFactory,
00206  * which has been made friend of all Geometry derivates. getNumPoints() changed to return
00207  * size_t.
00208  *
00209  * Revision 1.4  2006/04/10 18:15:09  strk
00210  * Changed Geometry::envelope member to be of type auto_ptr<Envelope>.
00211  * Changed computeEnvelopeInternal() signater to return auto_ptr<Envelope>
00212  *
00213  * Revision 1.3  2006/03/24 09:52:41  strk
00214  * USE_INLINE => GEOS_INLINE
00215  *
00216  * Revision 1.2  2006/03/15 09:12:45  strk
00217  * isSimple doc
00218  *
00219  * Revision 1.1  2006/03/09 16:46:49  strk
00220  * geos::geom namespace definition, first pass at headers split
00221  *
00222  **********************************************************************/

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