NDF_PTWCS - Store world coordinate system information in an NDF

Description:

The routine stores new world coordinate system (WCS) information in an NDF, over-writing any already present.

Invocation:

CALL NDF_PTWCS( IWCS, INDF, STATUS )

Arguments:

IWCS = INTEGER (Given)

An AST pointer to a FrameSet (SUN/210) containing information about the new world coordinate systems to be associated with the NDF.

INDF = INTEGER (Given)

NDF identifier.

STATUS = INTEGER (Given and Returned)

The global status.

Notes:

• This routine may only be used to store WCS information in a base NDF. If an NDF section is supplied, it will simply return without action.

• The AST FrameSet supplied must conform to the various restrictions imposed by the NDF_ system (e.g. on the nature of its base Frame). An error will result if any of these restrictions is not met.

• This routine makes a copy of the information in the FrameSet supplied, so the original FrameSet may subsequently be modified without affecting the behaviour of the NDF_ system.