It looks like the example image Binh provided also used either `lighting flat` or `lighting soft`. At least I get something a bit closer to the example image when I rerun Tom’s example and add either of these lighting commands.
Cheers,

Guillaume


On 30 Aug 2022, at 22:49, Tom Goddard via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Hi Binh,

  Looks like an image of one plane of a an amyloid fibril.  Here are example commands that make the attached image.

open 6y1a
hide ~/A,B
style stick
color byhet
open 10669 from emdb
vol zone #2 near /A,B range 3 new true
volume #3 color gray transp 0.8 level 4
set bgcolor white
graphics silhouette true

   Tom

<6y1a.png>

On Aug 30, 2022, at 1:25 PM, Elaine Meng via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Dear Binh,
It looks more like an electron density map (not solvent-accessible surface).  So you would need to open an atomic structure and open its electron density map, and show the structure as sticks and the map as a mesh.  For example commands, see the Quick Start Guide, scroll down to the next-to-the last section that shows 1a0m and its density map.  This includes a "vol zone" command.

<https://rbvi.ucsf.edu/chimerax/docs/quickstart/index.html>

Or if you are using the GUI interactively you can adjust the map style (e.g. mesh or not) and level using the Volume Viewer tool, which automatically appears when you open a density map file.
<https://rbvi.ucsf.edu/chimerax/docs/user/tools/volumeviewer.html>

If you want a similar thing but only with molecular surface, not density map, then you don't need zone.  You can just show the surface for whatever parts you want by specifying in a command or selecting.  E.g.

open 1gcn
hide ribbons
show atoms
surface :1-8
surface style mesh

...or you could make surface transparent...

transparency 50
surface style solid

Details of all of the commands are in the help:
<https://rbvi.ucsf.edu/chimerax/docs/user/index.html#commands>

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

On Aug 30, 2022, at 1:05 PM, Binh Nguyen via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Dear ChimeraX developers,

Would you please show me how to make this following figure?
<image.png>

I have learned that this is a feature in zone feature and probably solvent accessible surface, but I do not know how to make it.
Any hint is much appreciated.

Warm regards,

B


_____________________________________________
Binh A. Nguyen, Ph.D.
@ Saelices's Lab
Center for Alzheimer’s and Neurodegenerative Diseases
Peter O’Donnell Jr. Brain Institute
UT Southwestern Medical Center


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