/********************************************************************** * * GEOS - Geometry Engine Open Source * http://geos.osgeo.org * * Copyright (C) 2005-2006 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_INL #define GEOS_GEOM_COORDINATE_INL #include #include // for DoubleNotANumber #include #include namespace geos { namespace geom { // geos::geom INLINE void Coordinate::setNull() { x = DoubleNotANumber; y = DoubleNotANumber; z = DoubleNotANumber; } INLINE bool Coordinate::isNull() const { return (std::isnan(x) && std::isnan(y) && std::isnan(z)); } INLINE Coordinate::Coordinate(double xNew, double yNew, double zNew) : x(xNew), y(yNew), z(zNew) {} INLINE bool Coordinate::equals2D(const Coordinate& other) const { if(x != other.x) { return false; } if(y != other.y) { return false; } return true; } INLINE bool Coordinate::equals(const Coordinate& other) const { return equals2D(other); } INLINE int Coordinate::compareTo(const Coordinate& other) const { if(x < other.x) { return -1; } if(x > other.x) { return 1; } if(y < other.y) { return -1; } if(y > other.y) { return 1; } return 0; } INLINE bool Coordinate::equals3D(const Coordinate& other) const { return (x == other.x) && (y == other.y) && ((z == other.z) || (std::isnan(z) && std::isnan(other.z))); } INLINE double Coordinate::distance(const Coordinate& p) const { double dx = x - p.x; double dy = y - p.y; return std::sqrt(dx * dx + dy * dy); } INLINE double Coordinate::distanceSquared(const Coordinate& p) const { double dx = x - p.x; double dy = y - p.y; return dx * dx + dy * dy; } INLINE bool CoordinateLessThen::operator()(const Coordinate* a, const Coordinate* b) const { if(a->compareTo(*b) < 0) { return true; } else { return false; } } INLINE bool CoordinateLessThen::operator()(const Coordinate& a, const Coordinate& b) const { if(a.compareTo(b) < 0) { return true; } else { return false; } } INLINE bool operator==(const Coordinate& a, const Coordinate& b) { return a.equals2D(b); } INLINE bool operator!=(const Coordinate& a, const Coordinate& b) { return ! a.equals2D(b); } INLINE size_t Coordinate::HashCode::operator()(const geos::geom::Coordinate &c) const { size_t h = std::hash{}(c.x); h ^= std::hash{}(c.y) << 1; // z ordinate ignored for consistency with operator== return h; } } // namespace geos::geom } // namespace geos #endif // GEOS_GEOM_COORDINATE_INL