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# Point.h

    00001 /**********************************************************************
    00002  * $Id: Point.h 3185 2011-02-07 15:39:27Z strk $
    00003  *
    00004  * GEOS - Geometry Engine Open Source
    00005  * http://geos.refractions.net
    00006  *
    00007  * Copyright (C) 2011 Sandro Santilli <strk@keybit.net>
    00008  * Copyright (C) 2001-2002 Vivid Solutions Inc.
    00009  * Copyright (C) 2005 2006 Refractions Research Inc.
    00010  *
    00011  * This is free software; you can redistribute and/or modify it under
    00012  * the terms of the GNU Lesser General Public Licence as published
    00013  * by the Free Software Foundation.
    00014  * See the COPYING file for more information.
    00015  *
    00016  **********************************************************************
    00017  *
    00018  * Last port: geom/Point.java r320 (JTS-1.12)
    00019  *
    00020  **********************************************************************/
    00021
    00022 #ifndef GEOS_GEOS_POINT_H
    00023 #define GEOS_GEOS_POINT_H
    00024
    00025 #include <geos/export.h>
    00026 #include <geos/platform.h>
    00027 #include <geos/geom/Geometry.h> // for inheritance
    00028 #include <geos/geom/Puntal.h> // for inheritance
    00029 #include <geos/geom/CoordinateSequence.h> // for proper use of auto_ptr<>
    00030 #include <geos/geom/Envelope.h> // for proper use of auto_ptr<>
    00031 #include <geos/geom/Dimension.h> // for Dimension::DimensionType
    00032
    00033 #include <geos/inline.h>
    00034
    00035 #include <string>
    00036 #include <vector>
    00037 #include <memory> // for auto_ptr
    00038
    00039 #ifdef _MSC_VER
    00040 #pragma warning(push)
    00041 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
    00042 #endif
    00043
    00044 // Forward declarations
    00045 namespace geos {
    00046         namespace geom { // geos::geom
    00047                 class Coordinate;
    00048                 class CoordinateArraySequence;
    00049                 class CoordinateFilter;
    00050                 class CoordinateSequenceFilter;
    00051                 class GeometryComponentFilter;
    00052                 class GeometryFilter;
    00053         }
    00054 }
    00055
    00056 namespace geos {
    00057 namespace geom { // geos::geom
    00058
    00068 class GEOS_DLL Point : public virtual Geometry, public Puntal
    00069 {
    00070
    00071 public:
    00072
    00073         friend class GeometryFactory;
    00074
    00076         typedef std::vector<const Point *> ConstVect;
    00077
    00078         virtual ~Point();
    00079
    00086         Geometry *clone() const { return new Point(*this); }
    00087
    00088         CoordinateSequence* getCoordinates(void) const;
    00089
    00090         const CoordinateSequence* getCoordinatesRO() const;
    00091
    00092         size_t getNumPoints() const;
    00093         bool isEmpty() const;
    00094         bool isSimple() const;
    00095
    00097         Dimension::DimensionType getDimension() const;
    00098
    00100         virtual int getCoordinateDimension() const;
    00101
    00103         int getBoundaryDimension() const;
    00104
    00113         Geometry* getBoundary() const;
    00114
    00115         double getX() const;
    00116         double getY() const;
    00117         const Coordinate* getCoordinate() const;
    00118         std::string getGeometryType() const;
    00119         virtual GeometryTypeId getGeometryTypeId() const;
    00120         void apply_ro(CoordinateFilter *filter) const;
    00121         void apply_rw(const CoordinateFilter *filter);
    00122         void apply_ro(GeometryFilter *filter) const;
    00123         void apply_rw(GeometryFilter *filter);
    00124         void apply_rw(GeometryComponentFilter *filter);
    00125         void apply_ro(GeometryComponentFilter *filter) const;
    00126         void apply_rw(CoordinateSequenceFilter& filter);
    00127         void apply_ro(CoordinateSequenceFilter& filter) const;
    00128
    00129         bool equalsExact(const Geometry *other, double tolerance=0) const;
    00130
    00131         void normalize(void)
    00132         {
    00133                 // a Point is always in normalized form
    00134         }
    00135
    00136         Geometry* reverse() const
    00137         {
    00138                 return clone();
    00139         }
    00140
    00141 protected:
    00142
    00155         Point(CoordinateSequence *newCoords, const GeometryFactory *newFactory);
    00156
    00157         Point(const Point &p);
    00158
    00159         Envelope::AutoPtr computeEnvelopeInternal() const;
    00160
    00161         int compareToSameClass(const Geometry *p) const;
    00162
    00163 private:
    00164
    00168         std::auto_ptr<CoordinateSequence> coordinates;
    00169 };
    00170
    00171 } // namespace geos::geom
    00172 } // namespace geos
    00173
    00174 //#ifdef GEOS_INLINE
    00175 //# include "geos/geom/Point.inl"
    00176 //#endif
    00177
    00178 #ifdef _MSC_VER
    00179 #pragma warning(pop)
    00180 #endif
    00181
    00182 #endif // ndef GEOS_GEOS_POINT_H
    00183