[Chimera-users] Combining volumes in the new Chimera version

[Tom Goddard]

Hi Martin,

  Chimera doesn't have a way to add maps yet.  The volume operation, 
vop, command would be the logical place to support that.  A command like 
"vop #0 add #1 extend true sample true multiplier 0.25" could be 
implemented to add two maps extending the grid of first map #0 to cover 
the second and sampling the second map values (since its grid points 
won't generally align with those of the first map's grid) and scale the 
second map to allow getting comparable normalizations.  I'll add this to 
the feature request list.

    Tom


Martin Kampmann wrote:
> Hello,
>
> I just downloaded the new Chimera version and tried to combine  
> different models (density maps) into one volume, using the new  
> 'combine' function, (e.g. combine #1 #2), but it returned an error  
> message.
>
> Is it only possible to combine atomic structures (such as PDB files),  
> or is there a way to combine volumes/density?
>
> Thanks a lot!
> Martin
>
> P.S.: Thank you so much for developing Chimera! I enjoy working with  
> this program a lot!
>
>
> . .  .   .    .     .      .       .         .
>
> Martin Kampmann
>
> The Rockefeller University
> 1230 York Avenue
> New York, New York 10021
> USA
>
> phone:  ++1 212 327 8101
> fax:    ++1 212 327 7880
> e-mail: Martin.Kampmann at rockefeller.edu
>
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