[Chimera-users] movie

[Eric Pettersen]

Hi Alex,
	As Elaine noted, we only currently support the .trr coordinate  
files.  I have opened a feature-request ticket in our Trac database  
for xtc support so that you will be notified if I ever have time to  
implement xtc support.  Unfortunately I get very little time to work  
on MD features for Chimera since we simply do not prioritize it since  
the feeling is that VMD concentrates on such support and it is a  
better use of our developer time to work on novel features in other  
problem domains rather than to duplicate features of VMD.
	Also, Gromacs formats are typically much harder to add than other  
formats since they are not documented well enough to implement without  
actually reading through the relevant Gromacs source code.  I know  
that the .trr format was a bear and took me about 3 days to implement  
(most formats are about a half day).  Looking at the .xtc  
documentation it also looks like a lot of work due to the extensive  
use of coding tricks to reduce the file size as much as possible.
	I'm sorry that I don't have a more encouraging answer for you.

--Eric

                         Eric Pettersen
                         UCSF Computer Graphics Lab
                         http://www.cgl.ucsf.edu

On Jan 11, 2010, at 2:59 PM, Alex Perálvarez Marín wrote:

> Hi,
>
> I have the output files for an MD movie from Gromacs, an xtc and a tpr
> file. When trying to build the movie, Chimera ask for a tpr and trr
> files for the Gromacs input. I try anyway with my files but naturally
> Chimera crashes. Any help for this? Thank you in advance.
>
> Alex.
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> Chimera-users at cgl.ucsf.edu
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