ARD_GTWCS

Return a FrameSet connecting pixel and user co-ordinates

Description:

This routine returns an AST pointer for a FrameSet describing the relationship between the user co-ordinate system used by the supplied ARD description, and the pixel coordinate Frame of the FrameSet stored by the most recent call to ARD_WCS.

Invocation

CALL ARD_GTWCS( IGRP, NDIM, IWCS, STATUS )

Arguments

IGRP = INTEGER (Given)
A GRP identifier for the group holding the ARD description.
NDIM = INTEGER (Given)
The number of pixl axes in the mask array.
IWCS = INTEGER (Returned)
An AST pointer to the FrameSet. The base Frame will be the pixel coordinate Frame in the FrameSet supplied via the most recent call to ARD_WCS. The current Frame will be the user co-ordinate system specified by the supplied ARD description.

Notes: