[Chimera-users] saving moved maps

[Elaine Meng]

Hi Erika,
The basic problem is that the map file formats don't allow for  
rotation/translation information.
If you fit a map to an atomic structure, it is better to save the PDB  
file relative to the map rather than vice versa.  For example, use  
"File... Save PDB" in the menu and make sure to choose the option to  
"save relative to" the map model.
For saving a map fitted to another map, you could just save the  
Chimera session, which will preserve the orientations of the different  
models. However, if you want to save a map file to use in other  
programs, it is necessary to resample the map that you fit on the grid  
of the map you fit into. Resampling interpolates data values so you  
may lose a little resolution.
You can create a resampled map with the "vop resample" command and  
then save that new map with the Volume Viewer dialog or "volume"  
command.
<http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/ 
vop.html#resample>
I hope this helps,
Elaine
-----
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
                      http://www.cgl.ucsf.edu/home/meng/index.html

On Feb 26, 2010, at 4:46 AM, Erika Mancini wrote:

> Dear Chimera users,
> is it possible, after moving maps around, to save them into their  
> new positions? I tried save map from volume viewer, but  maps are  
> saved in their original positions.
> Thanks!
> erika