On Wed, 15 Dec 2010, Rasmus Fogh wrote:
> Are you processing the entire spectrum, and want to use min/max frequency to
> display only part of it?
In this case processing all the spectrum with signal in one way and just
the aromatic region another way.
> If so, would it work to process - or rather to save
> - only the aromatic region for the aromatic spectrum, and only the
> aliphatic region for the main region? You would then get contours only
> where they should be.
Yes I can work around it like that just about - in this case and in
general the aliphatic and aromatic shift ranges often overlap, so it's not
an ideal solution.
I guess the curent way the data model views min & max aliased frequencies
makes sense (on a per spectrum basis) - the real aliasing ranges are set
by the way the spectrum is acquired rather than processed. When chopping
bits out of the acquisition dim of a spectrum we often lie to analysis
about what the true "original" number of points and sweep width were.
I guess what I'm asking for really is an extra "range(s) within which
contours are drawn" setting. This would a perhaps also allow one to mask
out duff bits (like solvent stripes) that are often problematic in terms
of contouring speed.
Brian
--
Dr. Brian O. Smith ---------------------- Brian Smith at glasgow ac uk
School of Life Sciences, College of Medical, Vetinary & Life Sciences,
Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
Tel: 0141 330 5167/6459/3089 Fax: 0141 330 4600
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