For “sop split”, I figured out that a combination of Measure & Color Blobs (https://www.cgl.ucsf.edu/chimerax/docs/user/tools/measureblobs.html), after setting a “pick blobs” mouse mode, with a subsequent “surface splitbycolor” more or less does the trick. Thanks!

Oli

On Sep 21, 2023, at 1:58 PM, Elaine Meng <meng@cgl.ucsf.edu> wrote:

Hi Oli,
For your second question, there is a "volume mask" command:

<https://rbvi.ucsf.edu/chimerax/docs/user/commands/volume.html#mask>

Off to a meeting now, so haven't investigated the first part of the question yet...
Best,
Elaine
-----
Elaine C. Meng, Ph.D.
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Sep 21, 2023, at 10:50 AM, Oliver Clarke via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Hi,

Is there a direct equivalent to the command “sop split” in ChimeraX? In the documentation for the “surface” command, I can see that there is an option to split by color, but not to split into individually selectable blobs.

We use this a lot in Chimera, as a quick way to make a starting point for a mask to use in refinement, so it would be great to have in ChimeraX too.

Also, is there an equivalent to the “mask” command from Chimera? I can’t seem to find it but perhaps it has a different name?

Cheers
Oli