[Chimera-users] vop morph map color

Elaine Meng meng at cgl.ucsf.edu
Thu Feb 28 13:47:54 PST 2013


Hi Henning,
I believe map morphing requires the input maps to have the same grids, but you can resample a map onto the grid of another (making a new map that is congruent with the second) using command "vop resample":
<http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/vop.html#resample>

That's probably the best approach if the main purpose is to get the same grid so that you can do morphing.

More generally, cropping and writing out the cropped region can be done using the Volume Viewer tool  (see Features menu "Region bounds" and/or "Subregion selection" and File menu "Save Map as...")
<http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/volumeviewer/framevolumeviewer.html>
<http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/volumeviewer/volumeviewer.html#features>
<http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/volumeviewer/volumeviewer.html#organization>

... or the corresponding options of the"volume" command
<http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/volume.html>

For general zero-padding, I guess it could be done with "vop cover" although that is not the command's main purpose.
<http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/vop.html#cover>

I hope this helps,
Elaine
----------
Elaine C. Meng, Ph.D. 
UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Feb 28, 2013, at 12:41 PM, Henning Stahlberg wrote:

> Hi,
> Is it possible to generate a morphing between two volumes in Chimera, if the volumes have slighly different sizes, e.g. 100x100x100 vs. 101x101x101 pixels?  Can I crop or pad a volume in Chimera?
> Thanks,
> Henning.
> 




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