NDF_UNMAP

Unmap an NDF or a mapped NDF array

The routine unmaps an NDF, or a individual NDF array which has previously been mapped for READ, UPDATE or WRITE access.

CALL NDF_UNMAP( INDF, COMP, STATUS )

NDF identifier.

Name of the NDF component to be unmapped: ’AXIS’, ’DATA’, ’QUALITY’, ’VARIANCE’ or ’

*

’. The last value acts as a wild card, causing all mapped arrays to be unmapped.

The global status.

This routine attempts to execute even if STATUS is set on entry, although no further error report will be made if it subsequently fails under these circumstances.
A component name of ’AXIS’ will act as a partial wild card, unmapping any axis arrays which are mapped, but leaving other components unchanged. The routine NDF_AUNMP may be used to unmap individual axis arrays.
A comma-separated list of component names may also be given, in which case each component will be unmapped in turn.
An error will be reported if a component has not previously been mapped for access, except in the case where a value of ’ $*$ ’ is given for COMP, or where ’AXIS’ is used to unmap axis arrays.