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# Point.h

    00001 /**********************************************************************
    00002  * $Id: Point.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) 2001-2002 Vivid Solutions Inc.
    00008  * Copyright (C) 2005 2006 Refractions Research 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/Point.java rev. 1.37 (JTS-1.10)
    00018  *
    00019  **********************************************************************/
    00020
    00021 #ifndef GEOS_GEOS_POINT_H
    00022 #define GEOS_GEOS_POINT_H
    00023
    00024 #include <geos/export.h>
    00025 #include <geos/platform.h>
    00026 #include <geos/geom/Geometry.h>
    00027 #include <geos/geom/CoordinateSequence.h> // for proper use of auto_ptr<>
    00028 #include <geos/geom/Envelope.h> // for proper use of auto_ptr<>
    00029 #include <geos/geom/Dimension.h> // for Dimension::DimensionType
    00030
    00031 #include <geos/inline.h>
    00032
    00033 #include <string>
    00034 #include <vector>
    00035 #include <memory> // for auto_ptr
    00036
    00037 // Forward declarations
    00038 namespace geos {
    00039         namespace geom { // geos::geom
    00040                 class Coordinate;
    00041                 class CoordinateArraySequence;
    00042                 class CoordinateFilter;
    00043                 class CoordinateSequenceFilter;
    00044                 class GeometryComponentFilter;
    00045                 class GeometryFilter;
    00046         }
    00047 }
    00048
    00049 namespace geos {
    00050 namespace geom { // geos::geom
    00051
    00056 class GEOS_DLL Point : public Geometry
    00057
    00058         // NOTE: in JTS Point implements Puntual
    00059 {
    00060
    00061 public:
    00062
    00063         friend class GeometryFactory;
    00064
    00066         typedef std::vector<const Point *> ConstVect;
    00067
    00068         virtual ~Point();
    00069
    00076         Geometry *clone() const { return new Point(*this); }
    00077
    00078         CoordinateSequence* getCoordinates(void) const;
    00079
    00080         const CoordinateSequence* getCoordinatesRO() const;
    00081
    00082         size_t getNumPoints() const;
    00083         bool isEmpty() const;
    00084         bool isSimple() const;
    00085         //bool isValid() const;
    00086
    00088         Dimension::DimensionType getDimension() const;
    00089
    00091         int getBoundaryDimension() const;
    00092
    00101         Geometry* getBoundary() const;
    00102
    00103         double getX() const;
    00104         double getY() const;
    00105         const Coordinate* getCoordinate() const;
    00106         std::string getGeometryType() const;
    00107         virtual GeometryTypeId getGeometryTypeId() const;
    00108         void apply_ro(CoordinateFilter *filter) const;
    00109         void apply_rw(const CoordinateFilter *filter);
    00110         void apply_ro(GeometryFilter *filter) const;
    00111         void apply_rw(GeometryFilter *filter);
    00112         void apply_rw(GeometryComponentFilter *filter);
    00113         void apply_ro(GeometryComponentFilter *filter) const;
    00114         void apply_rw(CoordinateSequenceFilter& filter);
    00115         void apply_ro(CoordinateSequenceFilter& filter) const;
    00116
    00117         bool equalsExact(const Geometry *other, double tolerance=0) const;
    00118
    00119         void normalize(void)
    00120         {
    00121                 // a Point is always in normalized form
    00122         }
    00123
    00124         Geometry* reverse() const
    00125         {
    00126                 return clone();
    00127         }
    00128
    00129 protected:
    00130
    00143         Point(CoordinateSequence *newCoords, const GeometryFactory *newFactory);
    00144
    00145         Point(const Point &p);
    00146
    00147         Envelope::AutoPtr computeEnvelopeInternal() const;
    00148
    00149         int compareToSameClass(const Geometry *p) const;
    00150
    00151 private:
    00152
    00156         std::auto_ptr<CoordinateSequence> coordinates;
    00157 };
    00158
    00159 } // namespace geos::geom
    00160 } // namespace geos
    00161
    00162 //#ifdef GEOS_INLINE
    00163 //# include "geos/geom/Point.inl"
    00164 //#endif
    00165
    00166 #endif // ndef GEOS_GEOS_POINT_H
    00167