[Chimera-users] Failure of Surface Display

Elaine Meng meng at cgl.ucsf.edu
Sat Oct 4 11:44:35 PDT 2008

Hi Chuck,
Normally I would say please use "Help... Report a Bug" in the Chimera  
menu instead of sending mail to chimera-users, but in this case we are  
well aware of the issue:

Chimera uses MSMS for surface calculations, and we (and many bug  
reporters) have noted that it fails on a some proportion of  
structures. We have been working on our own code to replace MSMS, but  
it is not yet available.

Please see these previous posts for additional information, including  
some ways to possibly avoid the problem:

I hope this helps,
Elaine C. Meng, Ph.D.                          meng at cgl.ucsf.edu
UCSF Computer Graphics Lab and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Oct 4, 2008, at 8:59 AM, Charles Letner, Ph.D. wrote:

> Hello,
> I am trying to display a surface using the Actions > Surface>Show  
> menu.  The surface is not displaying and the following error is in  
> the reply:
> C:\Program Files (x86)\Chimera\bin\mscalc.exe 1.400000 2.000000 1
> Calculation of some surface components failed (code 5).
> Falling back to single-component calculation.
> C:\Program Files (x86)\Chimera\bin\mscalc.exe 1.400000 2.000000 0
> Surface calculation failed, mscalc returned code 5
> I am using Chimera version: production version 1 build 2540 2008/07/09
> Platform is Windows Vista 64 bit.
> The file I am working with contains 2 subunits.  If I split the two  
> subunits into separate files and open individually in the same  
> session, the surfaces display without any issue.  I am trying to  
> show the surface of the two subunits associated, not the surface of  
> each individual subunit.  Any help will be appreciated.
> Cheers,
> Chuck
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> Chimera-users at cgl.ucsf.edu
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