Coordinate.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2006 Refractions Research Inc.
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation.
 * See the COPYING file for more information.
 *
 **********************************************************************/
 
#ifndef GEOS_GEOM_COORDINATE_H
#define GEOS_GEOM_COORDINATE_H
 
#include <geos/export.h>
#include <geos/constants.h> // for DoubleNotANumber
#include <geos/inline.h>
#include <set>
#include <stack>
#include <vector> // for typedefs
#include <string>
#include <limits>
 
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
#endif
 
namespace geos {
namespace geom { // geos.geom
 
struct CoordinateLessThen;
 
// Define the following to make assignments and copy constructions
// NON-inline (will let profilers report usages)
//#define PROFILE_COORDINATE_COPIES 1
class GEOS_DLL Coordinate {
 
private:
 
    static Coordinate _nullCoord;
 
public:
    typedef std::set<const Coordinate*, CoordinateLessThen> ConstSet;
 
    typedef std::vector<const Coordinate*> ConstVect;
 
    typedef std::stack<const Coordinate*> ConstStack;
 
    typedef std::vector<Coordinate> Vect;
 
    double x;
 
    double y;
 
    double z;
 
    void setNull();
 
    static Coordinate& getNull();
 
    bool isNull() const;
 
    bool isValid() const;
 
    Coordinate();
 
    Coordinate(double xNew, double yNew, double zNew = DoubleNotANumber);
 
    bool equals2D(const Coordinate& other) const;
 
    bool equals2D(const Coordinate& other, double tolerance) const;
 
    bool equals(const Coordinate& other) const;
 
    int compareTo(const Coordinate& other) const;
 
    bool equals3D(const Coordinate& other) const;
 
    std::string toString() const;
 
    //void makePrecise(const PrecisionModel *pm);
 
    double distance(const Coordinate& p) const;
 
    double distanceSquared(const Coordinate& p) const;
 
    struct GEOS_DLL HashCode {
        std::size_t operator()(const Coordinate & c) const;
    };
 
};
 
struct GEOS_DLL CoordinateLessThen {
 
    bool operator()(const Coordinate* a, const Coordinate* b) const;
    bool operator()(const Coordinate& a, const Coordinate& b) const;
 
};
 
inline bool
operator<(const Coordinate& a, const Coordinate& b)
{
    return CoordinateLessThen()(a, b);
}
 
GEOS_DLL std::ostream& operator<< (std::ostream& os, const Coordinate& c);
 
GEOS_DLL bool operator==(const Coordinate& a, const Coordinate& b);
 
GEOS_DLL bool operator!=(const Coordinate& a, const Coordinate& b);
 
 
 
} // namespace geos.geom
} // namespace geos
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif
 
#ifdef GEOS_INLINE
# include "geos/geom/Coordinate.inl"
#endif
 
#endif // ndef GEOS_GEOM_COORDINATE_H