AST_CIRCLEPARS

Returns the geometric parameters of an Circle

Description:

This routine returns the geometric parameters describing the supplied Circle.

Invocation

CALL AST_CIRCLEPARS( THIS, CENTRE, RADIUS, P1, STATUS )

Arguments

THIS = INTEGER (Given)
Pointer to the Region.
CENTRE( ) = DOUBLE PRECISION (Returned)
An array in which to return the coordinates of the Circle centre. The length of this array should be no less than the number of axes in the associated coordinate system.
RADIUS = DOUBLE PRECISION (Returned)
Returned holding the radius of the Circle, as an geodesic distance in the associated coordinate system.
P1( ) = DOUBLE PRECISION (Returned)
An array in which to return the coordinates of a point on the circumference of the Circle. The length of this array should be no less than the number of axes in the associated coordinate system.
STATUS = INTEGER (Given and Returned)
The global status.

Notes: