On Tue, 22 Apr 2008, Ben Goult wrote:
> On a similar theme but not Analysis related: does anyone know how to make a
> pseudo3d in Topspin with just 12 planes?
Not directly, but you could easily chop it down using AZARA, if you're
strongly wedded to your Bruker processing (simplest would be to reprocess
in something that handles the pseudo3D but doesn't add extra points, e.g.
AZARA, NMRPipe, etc, etc, ). If I recall from earlier in the thread your
time series is the 2nd dim of your 3D so you don't have the simplest case
(which, if it were dim 3 would be simply to write an AZARA style parameter
file for the processed Bruker data file with npts for dim 3 set to your
desired value). In your case the simplest AZARA route would be:
1. write AZARA par file for processed data - as you probably have the
referencing information loaded into Analysis from the Bruker file you
don't need to do any "data harvesting" for this. Something like
file 2rr
int !I think Bruker processed data is integer type
dim 1
npts 2048
nuc 1H
dim 2
npts 16
dim 3
npts 256
nuc 15N
2. write AZARA process script e.g.
input bruker.par
output chopped
script_com 2
range 1 12
end_script
3. & process.
process <name of script>
4. Note that the processed data will now be blocked (see chopped.par for
the block sizes in each dim) and use the Edit Spectra -> File Details ->
Update File Details functionality in Analysis to load chopped in place of
the original Bruker file.
BTW Wayne has code that generates Python objects that you can use to
abitrarily manipulate data described by an AZARA par file. Great for the
weird & wonderful ways in which it is possible to mess up NMR data
acquisition (e.g. alternate planes 90 deg out of phase in 3D HCCH-TOCSY
etc.).
Dr. Brian O. Smith ---------------------- B Smith at bio gla ac uk
Division of Biochemistry & Molecular Biology,
Institute Biomedical & 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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