[Chimera-users] About volume viewer in chimera 1.6.1

Elaine Meng meng at cgl.ucsf.edu
Mon Apr 30 09:06:59 PDT 2012

Hi Yuhong,
Those numbers are the grid dimensions of the map file: how many grid points (density values) it contains in the X, Y, and Z directions.  For example, in your figure:

fishmonomer4.mrc has 88 grid points along X, 66 along Y, 94 along Z (total number of values 88 x 66 x 94)

1akeA_10A.mrc has 22 values along X, 22 along Y, 22 along Z (total number of values 22 x 22 x 22)

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

On Apr 29, 2012, at 8:06 PM, Yuhong Li wrote:

> Dear Chimera developers,
> Hi! I am a student from Sun Yat-Sen University. I recently began using the Chimera for my study, but I have a problem about how to read the displayed information in volume viewer. Here I attach a picture and inside the picture there are two places I've point out with arrows which represent two different map files in mrc fornat.
> Now I was wondering if you could spare some time to explain it to me that what do those different numbers mean? Hope to hear from your reply in very soon.
> Best Wishes,
> Yuhong Lee

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