HCoordinate.h
/**********************************************************************
*
* GEOS - Geometry Engine Open Source
* http://geos.osgeo.org
*
* Copyright (C) 2011 Sandro Santilli <strk@kbt.io>
* Copyright (C) 2005-2006 Refractions Research Inc.
* Copyright (C) 2001-2002 Vivid Solutions 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.
*
**********************************************************************
*
* Last port: algorithm/HCoordinate.java r386 (JTS-1.12+)
*
**********************************************************************/
#pragma once
#include <geos/export.h>
#include <iosfwd>
// Forward declarations
namespace geos {
namespace geom {
class Coordinate;
}
}
namespace geos {
namespace algorithm { // geos::algorithm
class GEOS_DLL HCoordinate {
public:
friend std::ostream& operator<< (std::ostream& o, const HCoordinate& c);
static void intersection(const geom::Coordinate& p1,
const geom::Coordinate& p2,
const geom::Coordinate& q1,
const geom::Coordinate& q2,
geom::Coordinate& ret);
double x, y, w;
HCoordinate();
HCoordinate(double _x, double _y, double _w);
HCoordinate(const geom::Coordinate& p);
HCoordinate(const geom::Coordinate& p1, const geom::Coordinate& p2);
HCoordinate(const geom::Coordinate& p1, const geom::Coordinate& p2,
const geom::Coordinate& q1, const geom::Coordinate& q2);
HCoordinate(const HCoordinate& p1, const HCoordinate& p2);
double getX() const;
double getY() const;
void getCoordinate(geom::Coordinate& ret) const;
};
std::ostream& operator<< (std::ostream& o, const HCoordinate& c);
} // namespace geos::algorithm
} // namespace geos
geos::algorithm::HCoordinate
Represents a homogeneous coordinate in a 2-D coordinate space.
Definition HCoordinate.h:43
geos::algorithm::HCoordinate::HCoordinate
HCoordinate(const geom::Coordinate &p1, const geom::Coordinate &p2)
Constructs a homogeneous coordinate which is the intersection of the lines define by the homogeneous ...
geos::algorithm::HCoordinate::intersection
static void intersection(const geom::Coordinate &p1, const geom::Coordinate &p2, const geom::Coordinate &q1, const geom::Coordinate &q2, geom::Coordinate &ret)
Computes the (approximate) intersection point between two line segments using homogeneous coordinates...
geos::geom::Coordinate
Coordinate is the lightweight class used to store coordinates.
Definition Coordinate.h:217
geos::algorithm
Contains classes and interfaces implementing fundamental computational geometry algorithms.
Definition Angle.h:32
geos::geom
Definition Angle.h:26
geos
Basic namespace for all GEOS functionalities.
Definition geos.h:38