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00015 #ifndef GEOS_GEOM_COORDINATE_H
00016 #define GEOS_GEOM_COORDINATE_H
00017
00018 #include <geos/export.h>
00019 #include <geos/platform.h>
00020 #include <geos/inline.h>
00021 #include <set>
00022 #include <stack>
00023 #include <vector>
00024 #include <string>
00025 #include <limits>
00026
00027 #ifdef _MSC_VER
00028 #pragma warning(push)
00029 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
00030 #endif
00031
00032 namespace geos {
00033 namespace geom {
00034
00035 struct CoordinateLessThen;
00036
00057
00058
00059
00060 class GEOS_DLL Coordinate {
00061
00062 private:
00063
00064 static Coordinate _nullCoord;
00065
00066 public:
00068 typedef std::set<const Coordinate *, CoordinateLessThen> ConstSet;
00069
00071 typedef std::vector<const Coordinate *> ConstVect;
00072
00074 typedef std::stack<const Coordinate *> ConstStack;
00075
00077 typedef std::vector<Coordinate> Vect;
00078
00080 double x;
00081
00083 double y;
00084
00086 double z;
00087
00088 void setNull();
00089
00090 static Coordinate& getNull();
00091
00092 bool isNull() const;
00093
00094 Coordinate(double xNew=0.0, double yNew=0.0, double zNew=DoubleNotANumber);
00095
00096 bool equals2D(const Coordinate& other) const;
00097
00099 bool equals(const Coordinate& other) const;
00100
00102 int compareTo(const Coordinate& other) const;
00103
00105 bool equals3D(const Coordinate& other) const;
00106
00108 std::string toString() const;
00109
00112
00113
00114 double distance(const Coordinate& p) const;
00115
00116 int hashCode() const;
00117
00122 static int hashCode(double d);
00123
00124 };
00125
00127 struct GEOS_DLL CoordinateLessThen {
00128
00129 bool operator()(const Coordinate* a, const Coordinate* b) const;
00130 bool operator()(const Coordinate& a, const Coordinate& b) const;
00131
00132 };
00133
00135 inline bool operator<(const Coordinate& a, const Coordinate& b) {
00136 return CoordinateLessThen()(a,b);
00137 }
00138
00140 GEOS_DLL std::ostream& operator<< (std::ostream& os, const Coordinate& c);
00141
00143 GEOS_DLL bool operator==(const Coordinate& a, const Coordinate& b);
00144
00146 GEOS_DLL bool operator!=(const Coordinate& a, const Coordinate& b);
00147
00148
00149
00150 }
00151 }
00152
00153 #ifdef _MSC_VER
00154 #pragma warning(pop)
00155 #endif
00156
00157 #ifdef GEOS_INLINE
00158 # include "geos/geom/Coordinate.inl"
00159 #endif
00160
00161 #endif // ndef GEOS_GEOM_COORDINATE_H
00162