[Chimera-users] center a map

C.J. biocjh at gmail.com
Mon Sep 18 23:52:27 PDT 2017


Thank you all!
My maps is imposed with a C1 symmetry. So I just want to know a coarse
center.

Regards!
Jianhao

2017-09-16 2:13 GMT+08:00 Elaine Meng <meng at cgl.ucsf.edu>:

> Hi Jianhao,
> That “center” button in the Coordinates section fills in the origin index
> as the center of your map, with values (grid dimensions - 1)/2. I had a
> test map with dimensions 35 26 30 and when I clicked that button it filled
> in the origin index values as 17 12.5 14.5.  To do the same thing as that
> button, you could figure out the values from your map’s grid dimensions and
> specify them with the “originIndex” option of the “volume” command.
> <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/
> volume.html#dimensions>
>
> However, as Tom mentioned, the center of the map grid might not be exactly
> the same as center of symmetry.  If they’re different and you know the grid
> indices of the center of symmetry, you would use those values instead.
> Chimera doesn’t have a way to figure them out automatically.
> Best,
> Elaine
> -----
> Elaine C. Meng, Ph.D.
> UCSF Chimera(X) team
> Department of Pharmaceutical Chemistry
> University of California, San Francisco
>
>
>


-- 
Best regards!
C.J.
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