: Monday, February 22, 2010 5:23 PM
To: CCP4BB@JISCMAIL.AC.UK
Subject: [ccp4bb] short step
I want to process bunch of frames with extremely short step - i.e. these
are 0.5degree oscillations but crystal only rotates by 1 degree over
1000 frames (I would have kept it at the same orientation
Ed,
thanks - this is a great suggestion. Unfortunately, it's not the
problem - I had the oscillation start 0.0 range 0.5 step 0.001
statement in the denzo input file. Denzo runs fine and there is no
slippage issue. I tried turning off postrefinement and both batch and
crystal rotx refinement
Ethan,
manual handling of the mosaicity seems to help. There are now plenty of
other things to sort out, but at least scalepack does not crash anymore.
I used lower fixed mosaicity setting in denzo and fixed it in scalepack.
Another issue is that there was apparently something funny about first
Ed,
Did you tell scalepack not to add partials? It certainly shouldn't be
doing this when your oscillation ranges overlap - perhaps it is smart
enough to realize this is the situation, perhaps not.
Marian Szebenyi
MacCHESS
Ed Pozharski wrote:
Ed,
thanks - this is a great suggestion.
On Monday 22 February 2010 15:23:35 Ed Pozharski wrote:
I want to process bunch of frames with extremely short step - i.e. these
are 0.5degree oscillations but crystal only rotates by 1 degree over
1000 frames (I would have kept it at the same orientation if Rigaku
control software would allow
I want to process bunch of frames with extremely short step - i.e. these
are 0.5degree oscillations but crystal only rotates by 1 degree over
1000 frames (I would have kept it at the same orientation if Rigaku
control software would allow zero step). Denzo can process the frames
all right, but
Try grepping crystal your .x files (or whatever you called the
denzo output files). Also grep for start.
By default denzo updates start-phi to the end
of the previous oscillation. Since 0,5 degree is within radius of
convergence, it re-refines crystal rotx to be compatible with this
assumption
Edward A. Berry wrote:
Try grepping crystal your .x files (or whatever you called the
denzo output files). Also grep for start.
By default denzo updates start-phi to the end
of the previous oscillation. Since 0,5 degree is within radius of
convergence, it re-refines crystal rotx to be
