Hi Enrico,

  Allowing the roll command to roll each model about its own center of rotation has been discussed a year ago

https://mail.cgl.ucsf.edu/mailman/archives/list/chimerax-users@cgl.ucsf.edu/thread/LA3BR36XCQ7XQYFOTWJJZVKE3YIQ67TS/#LA3BR36XCQ7XQYFOTWJJZVKE3YIQ67TS

and there is a ChimeraX feature request for it

https://www.rbvi.ucsf.edu/trac/ChimeraX/ticket/10427

but currently there is no such option.  I'm not quite sure what such an option would look like.  In your example you use "center #1 & protein".  In the prior discussion I think the idea was something like "roll models #1-6 center independent" and this would be the same as using "center #1", not "center #1 & protein".  But you raise an interesting case where you want to have finer control over the rotation center.  For instance, what if I had several homolog structures and I wanted to rotate each about a specific residue or active site ligand, e.g "center #1:215".

Tom

On Feb 13, 2025, at 3:57 AM, Enrico Martinez via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Dear ChimeraX users!

Using til command I split six superimposed structures, displaying them as the 2x3 table and then rotate each object along its axis within each grid using "roll" in the following way:

# for 6 different object

roll models #1 center #1 & protein
roll models #2 center #2 & protein
roll models #3 center #3 & protein
roll models #4 center #4 & protein
roll models #5 center #5 & protein
roll models #6 center #6 & protein

Would it be possible to simplify this to one "roll" command that will automatically rotate all displayed objects in the separate grids along its axis ?

Many thanks in advance

Enrico

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