Thanks Tom! It would be quite useful to have the shape command include ellipsoids. As I intend to use it for low resolution visualization purposes, the axes would not necessarily be aligned to the natural coordinate system. Thanks again ! :) Keren. On Dec 2, 2009, at 5:09 PM, Thomas Goddard wrote:
Hi Keren,
There is currently no Chimera command to draw a generic ellipsoid. The natural command to do this would be "shape" which currently can draw spheres, cylinders, icosahedrons, ... but not ellipsoids.
http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/shape.html
The "measure inertia" command draws an ellipsoid matching the moment of inertia of specified atoms or surfaces.
http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/measure.html#inertia
Chimera can also draw thermal ellipsoids from anisotropic B-factors given in PDB ANISOU records.
http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/thermal/thermal.htm...
Some Python code can of course make ellipsoids.
Let me know if you'd like the shape command enhanced to include ellipsoids and whether axes not aligned with x,y,z are needed.
Tom
-------- Original Message -------- Subject: [Chimera-users] drawing elipsolids From: Keren Lasker To: chimera-users Date: 12/2/09 3:36 PM
Dear Chimera team, Is there a way to draw ellipsoids in Chimera. The ellipsoid is defined by its center and 3 radii. Thanks for your help. Best, Keren.