[Chimera-users] surface view of large file in chimera
meng at cgl.ucsf.edu
Tue Feb 17 12:44:38 PST 2009
I assume you are talking about volume data (such as a density map)
since the resolution of a molecular surface would not be adjusted
automatically. If so, you can just change the "step" in the Volume
Viewer dialog to "1" to make sure the contour surface is based on the
full data instead of a subsample.
There is another setting that automatically adjusts resolution when a
large data set is opened. In the Volume Viewer dialog, choose
Features... Data display options. Then there should be more options
shown in the dialog, including "Adjust step to show at most..." You
can either change the number to something bigger, or just uncheck that
option if you don't think your large datasets will be too slow to
handle on your computer. If you want those settings to apply to later
uses of Chimera, choose "Features... Save default dialog settings"
from the Volume Viewer dialog.
I hope this helps,
Elaine C. Meng, Ph.D. meng at cgl.ucsf.edu
UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco
On Feb 11, 2009, at 2:54 PM, G.-Q. Hu wrote:
> I am trying to show a large file by surface view in chimera. But I
> found that the structure lost the detail and the surface was
> smoothed. I guess there is a sampling problem for large file. Is
> there any way to view the large file at the original resolution?
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