Coordinate.h

00001 /**********************************************************************
00002  * $Id: Coordinate.h 3367 2011-05-17 16:50:03Z strk $
00003  *
00004  * GEOS - Geometry Engine Open Source
00005  * http://geos.refractions.net
00006  *
00007  * Copyright (C) 2006 Refractions Research Inc.
00008  *
00009  * This is free software; you can redistribute and/or modify it under
00010  * the terms of the GNU Lesser General Public Licence as published
00011  * by the Free Software Foundation. 
00012  * See the COPYING file for more information.
00013  *
00014  **********************************************************************/
00015 
00016 #ifndef GEOS_GEOM_COORDINATE_H
00017 #define GEOS_GEOM_COORDINATE_H
00018 
00019 #include <geos/export.h>
00020 #include <geos/platform.h> // for DoubleNotANumber
00021 #include <geos/inline.h>
00022 #include <set>
00023 #include <stack>
00024 #include <vector> // for typedefs
00025 #include <string>
00026 #include <limits>
00027 
00028 #ifdef _MSC_VER
00029 #pragma warning(push)
00030 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
00031 #endif
00032 
00033 namespace geos {
00034 namespace geom { // geos.geom
00035 
00036 struct CoordinateLessThen;
00037 
00058 // Define the following to make assignments and copy constructions 
00059 // NON-inline (will let profilers report usages)
00060 //#define PROFILE_COORDINATE_COPIES 1
00061 class GEOS_DLL Coordinate {
00062 
00063 private:
00064 
00065         static Coordinate nullCoord;
00066 
00067 public:
00069         typedef std::set<const Coordinate *, CoordinateLessThen> ConstSet;
00070 
00072         typedef std::vector<const Coordinate *> ConstVect;
00073 
00075         typedef std::stack<const Coordinate *> ConstStack;
00076 
00078         typedef std::vector<Coordinate> Vect;
00079 
00081         double x;
00082 
00084         double y;
00085 
00087         double z;
00088 
00089         void setNull();
00090 
00091         static Coordinate& getNull();
00092 
00093         bool isNull() const;
00094 
00095         ~Coordinate();
00096 
00097         Coordinate(double xNew=0.0, double yNew=0.0, double zNew=DoubleNotANumber);
00098 
00099         bool equals2D(const Coordinate& other) const;
00100 
00102         bool equals(const Coordinate& other) const;
00103 
00105         int compareTo(const Coordinate& other) const;
00106 
00108         bool equals3D(const Coordinate& other) const;
00109 
00111         std::string toString() const;
00112 
00115         //void makePrecise(const PrecisionModel *pm);
00116 
00117         double distance(const Coordinate& p) const;
00118 
00119         int hashCode() const;
00120 
00125         static int hashCode(double d);
00126 
00127 };
00128 
00130 struct GEOS_DLL CoordinateLessThen {
00131 
00132         bool operator()(const Coordinate* a, const Coordinate* b) const;
00133         bool operator()(const Coordinate& a, const Coordinate& b) const;
00134 
00135 };
00136 
00138 inline bool operator<(const Coordinate& a, const Coordinate& b) {
00139   return CoordinateLessThen()(a,b);
00140 }
00141 
00143 GEOS_DLL std::ostream& operator<< (std::ostream& os, const Coordinate& c);
00144 
00146 GEOS_DLL bool operator==(const Coordinate& a, const Coordinate& b);
00147 
00149 GEOS_DLL bool operator!=(const Coordinate& a, const Coordinate& b);
00150 
00151 
00152 
00153 } // namespace geos.geom
00154 } // namespace geos
00155 
00156 #ifdef _MSC_VER
00157 #pragma warning(pop)
00158 #endif
00159 
00160 #ifdef GEOS_INLINE
00161 # include "geos/geom/Coordinate.inl"
00162 #endif
00163 
00164 #endif // ndef GEOS_GEOM_COORDINATE_H
00165 

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