Just a little addendum: savepos positions are remembered in sessions, so you can develop your animation over several days if needed. --Eric On Jun 16, 2006, at 10:40 AM, Elaine Meng wrote:
I previously replied just to Jonathan, but it was suggested other chimera-users might find the information useful:
There are some undocumented extra features of the "reset" command in recent versions of Chimera (2006) that may have the desired effect.
The standard behavior is that you can save the positions of models and give each set of positions a name (with the "savepos" command) and later return to any saved position with "reset."
The undocumented (newer and less well-tested) behavior is that you can use "reset" to gradually interpolate from one saved position to another over a specified number of frames. The usage is:
reset position-name [#-frames [interp-method]]
where the only interp-method currently available is "linear" This newer usage of the reset command may be changed, improved, and further developed in future versions of Chimera. Elaine
"savepos" man page: http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/savepos.html
On Jun 15, 2006, at 7:55 PM, Jonathan Hilmer wrote:
Does anyone have experience making movies in Chimera used more advanced motions, besides the standard roll, rock, etc?
My general idea is to use matrixget to output a series of matrices, interpolate them in my standard Python environment (which is related to the question from Vol 38, Issue 10), and create as output a Chimera script composed of hundreds of 'matrixset' matrices.
The Python Computer Graphics Kit (http://cgkit.sourceforge.net) will give me the functions for quaternions, as would ScientificPython or pythonOpenGL, but a quick review of their documentation suggests that in any package it will be necessary to interpolate the rotation separately from the translation: obviously it would be more convenient if there is a package that can transparently interpolate the matrices as provided by Chimera.
Has anyone gone through this issue before, hopefully with some tips for me?
Thanks, Jonathan _______________________________________________ Chimera-users mailing list Chimera-users@cgl.ucsf.edu http://www.cgl.ucsf.edu/mailman/listinfo/chimera-users
----- 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
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