Hi Michel, namesel is a newer command added after version 1.2304 - get the recent snapshot to use this command: http://www.cgl.ucsf.edu/chimera/download.html#snapshots The release notes for this snapshot list what has changed since 1.2304: http://www.cgl.ucsf.edu/chimera/1.2349/docs/relnotes/snapshot.html The links I included in previous messages were to "development" documentation, which will always be newer than what you have (although mostly the same if you have a recent version). The documentation included with a download is more synchronized - you can access and search your local copy of the documentation using the Chimera Help menu. ----- Elaine C. Meng, Ph.D. meng@cgl.ucsf.edu UCSF Computer Graphics Lab and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html On Mar 11, 2007, at 3:32 PM, michel dedeo wrote:

Elaine and Tom

Thanks for your help! Savepos and reset will let me do exactly what I want. It is good to know there are two selection commands as well.

I have one more question. I can name a selection using the menu but when I try to use the 'namesel' command I get an error: Unrecognized command: "namesel". Does this command still exist?

I am using production version 1 build 2304 2006/10/23 on Windows.

Thanks again,

Michel Dedeo

On 3/9/07, Tom Goddard <goddard@cgl.ucsf.edu> wrote:

...

Hi Michel,

I think Elaine's suggestion about using the savepos and reset commands is the best approach.

http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/savepos.html http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/reset.html

The "movemodel" command envisioned in a previous mailing list entry

http://www.cgl.ucsf.edu/pipermail/chimera-users/2006-June/000843.html

does not exist. I think I would make two simpler commands if some new ones were needed that look like:

spin #1 0.3 0.4 0.5 90 20

(spin model number 1 about axis (.3,.4,.5) by 90 degrees over 20 frames)

slide #1 5.2 8.2 3.1 20

(translate model number 1 by (5.2,8.2,3.1) over 20 frames). These would work in screen coordinates by default. But using local coordinates of the model or local coordinates of a second model would also be handy:

spin #1 0.3 0.4 0.5 90 20 local #2

(spin about axis specified in local coordinate system of model #2)

slide #1 5.2 8.2 3.1 20 local

(translate with vector specified in local coordinates of the model).

These local coordinate versions allow the motion to stay the same if you rotate the whole scene. Neither the spin nor slide command currently exists. There are move, turn, and roll commands in Chimera that have more limited capabilities, only allowing rotation axes and shifts to be x, y, or z screen axes.

Tom