Another possibility is to use the "turn" command to turn the object around an axis by a number of degrees that you specify, and then determine the correct number of degrees by trial and error. --Eric Eric Pettersen UCSF Computer Graphics Lab http://www.cgl.ucsf.edu On Oct 6, 2008, at 9:34 AM, Elaine Meng wrote:

Hi Jaap, Maybe the "matrixget" command would meet your needs; it writes out a transformation matrix, 3x3 rotation matrix + translation vector, for each model: <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/matrixset.html>

You can write it to a file or just to the Reply Log. If to a file, you can later apply the transformation(s) by reading the file with the "matrixset" command (same man page as above).

Best, Elaine ----- Elaine C. Meng, Ph.D. meng@cgl.ucsf.edu UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html

On Oct 6, 2008, at 7:28 AM, Jaap Brink wrote:

...

Hi,

I’m trying to figure out how I can obtain angles from chimera. I have a 3D object that I have to rotate in order to see certain features. I’d like to know those angles. Is there is a way to get this info?

Thanks in advance,

Jaap Brink

_______________________________________________ Chimera-users mailing list Chimera-users@cgl.ucsf.edu http://www.cgl.ucsf.edu/mailman/listinfo/chimera-users

Hi Jaap, If you export as a vrml file, the global transformation (same as an open inventor transform) is near the top in human readable text, after the lighting and background descriptions. keep in mind the chimera camera only points in the z-axis. When you change your point of view, the camera is static and the object is globally transformed. If you have a multi-body scenario, such that the individual bodies have independent dynamic trajectories, this can get complicated. Should you want to import all of this information into another viz/animation program, other things must be done, depending on the package. Matthew Dougherty 713-433-3849 National Center for Macromolecular Imaging Baylor College of Medicine/Houston Texas USA ========================================================================= ========================================================================= -----Original Message----- From: chimera-users-bounces@cgl.ucsf.edu on behalf of Jaap Brink Sent: Mon 10/6/2008 1:17 PM To: 'Eric Pettersen' Cc: chimera-users@cgl.ucsf.edu Subject: Re: [Chimera-users] obtaining rotation angles Hi, Thanks for the lightning quick response. Much appreciated. Jaap _____ From: Eric Pettersen [mailto:pett@cgl.ucsf.edu] Sent: Monday, October 06, 2008 1:09 PM To: jbrink@jeol.com Cc: chimera-users@cgl.ucsf.edu BB Subject: Re: [Chimera-users] obtaining rotation angles Another possibility is to use the "turn" command to turn the object around an axis by a number of degrees that you specify, and then determine the correct number of degrees by trial and error. --Eric Eric Pettersen UCSF Computer Graphics Lab http://www.cgl.ucsf.edu On Oct 6, 2008, at 9:34 AM, Elaine Meng wrote: Hi Jaap, Maybe the "matrixget" command would meet your needs; it writes out a transformation matrix, 3x3 rotation matrix + translation vector, for each model: <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/matrixset.html> You can write it to a file or just to the Reply Log. If to a file, you can later apply the transformation(s) by reading the file with the "matrixset" command (same man page as above). Best, Elaine ----- Elaine C. Meng, Ph.D. meng@cgl.ucsf.edu UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html On Oct 6, 2008, at 7:28 AM, Jaap Brink wrote: Hi, I'm trying to figure out how I can obtain angles from chimera. I have a 3D object that I have to rotate in order to see certain features. I'd like to know those angles. Is there is a way to get this info? Thanks in advance, Jaap Brink _______________________________________________ Chimera-users mailing list Chimera-users@cgl.ucsf.edu http://www.cgl.ucsf.edu/mailman/listinfo/chimera-users