After comparing with ellipsoids from various other programs I now do see some differences. I've open a Trac ticket (#7446) for this problem so that you will be notified of any progress on the issue. I should have some kind of resolution in the next day or three. If you wanted to send along some examples of expected output I would be happy to check any fix I make against them.

--Eric

Eric Pettersen

UCSF Computer Graphics Lab

http://www.cgl.ucsf.edu

On Jul 5, 2009, at 11:37 PM, Michael K. Gilson wrote:

Hi,

Chimera and PyMol are showing very different thermal ellipsoid
orientations for the same PDB file, and I have reason to believe that
the PyMol display is the right one.
Here are the first two lines of the PDB file I am reading in:

Atom      1 O1   CUC     1       3.345   1.613   0.172
ANISOU    1 O1   CUC     1      619    156    528    150     43     -6
ATOM      2 O2   CUC     1      -1.699   0.125   2.792
ANISOU    2 O2   CUC     1      497    355    848    128    -68    204

I would appreciate help with this because Chimera appears to provide
more detailed control of the coloring of the ellipsoids than PyMol does.

I'll be happy to provide screenshots or other information.

Regards,
Mike

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