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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.



next up previous
Next: NDF_QMASK - Combine an NDF quality value with a bad-bits mask to give a logical result
Up: FORTRAN ROUTINE DESCRIPTIONS
Previous: NDF_PROP - Propagate NDF information to create a new NDF via the ADAM parameter system


Starlink User Note 33
R.F. Warren-Smith
11th January 2000
E-mail:rfws@star.rl.ac.uk

Copyright © 2000 Council for the Central Laboratory of the Research Councils