Good morning,

I would like to set the threshold of multiple CryoEM Volumes (10-20) at the same time, and I would like to put all of them at the same sdlevel.

I use the command:

volume #1 sdLevel 2

But this only work for one volume, if I use

volume all sdLevel 2, or volume #1 #2 #3 sdLevel 2

It does not work and the threshold are random.

In chimera I had a script that I use for doing that but I have not found the way to do it in ChimeraX. In Chimera, I normally called the script with an alias.

alias ^allsd runscript ~/chimeraScriptSD.py

allsd 3

And the script (chimeraScriptSD.py) was:

import sys
import chimera
from VolumeViewer import Volume

mlist = chimera.openModels.list(modelTypes=[Volume])

sdlevel = 2

if len(sys.argv)>1:
sdlevel = sys.argv[1]

for m in mlist:

chimera.runCommand('volume '+str(m)+' sdlevel '+ str(sdlevel))

But I do not know how to do this in ChimeraX. The key point I do not know how to do is to do a loop that say “for any volume in all the opened volumes”.

Thanks for your help

Moisés