geos::noding::Octant Class Reference

Methods for computing and working with octants of the Cartesian plane. More...

#include <Octant.h>

Static Public Member Functions
static int	octant (double dx, double dy)
static int	octant (const geom::CoordinateXY &p0, const geom::CoordinateXY &p1)
static int	octant (const geom::CoordinateXY *p0, const geom::CoordinateXY *p1)

Detailed Description

Methods for computing and working with octants of the Cartesian plane.

Octants are numbered as follows:

2|1 3 | 0 —+– 4 | 7 5|6

If line segments lie along a coordinate axis, the octant is the lower of the two possible values.

Last port: noding/Octant.java rev. 1.2 (JTS-1.7)

Member Function Documentation

octant() [1/2]

static int geos::noding::Octant::octant ( const geom::CoordinateXY &  p0, const geom::CoordinateXY &  p1  )

static

Returns the octant of a directed line segment from p0 to p1.

octant() [2/2]

static int geos::noding::Octant::octant ( double  dx, double  dy  )

static

Returns the octant of a directed line segment (specified as x and y displacements, which cannot both be 0).

Referenced by geos::noding::BasicSegmentString::getSegmentOctant().

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The documentation for this class was generated from the following file:

• Octant.h