Peter,
> BTW, an observation. When reading in this WCS NDF creates a very long
> LutMap to describe the axis values (8192 elements) which I pass into and
> then back out of various channels, this takes a significant amount of time
> (even on my Athlon 2800+), when in actual fact the LutMap can be simplied
> to a WinMap. Any chance of NDF GTWCS performing this simplication before
> the WCS gets out of NDF?
One could argue possibly that NDF_GTWCS should return the FrameSet stored
using NDF_PTWCS without any change, and that the decision to simplify or
not to simplify should be the responsibility of the calling code. Is there
any problem with your code calling AST_SIMPLIFY after calling NDF_GTWCS?
David
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