Hi Caroline,
I would not expect your command
cofr /A; turn y -1 90 atoms /A; cofr /B; turn y 1 90 atoms /B
to rotate the two chains about the correct center. You instead would want
turn y -1 90 atoms /A center /A; turn y 1 90 atoms /B center /B
Your original command I think will turn the chain A atoms about the center of the B atoms because the 90 frames happen after all those command complete and the center of rotation is /B so both turn commands will be using the center /B. So instead you want to use the "center" option of the turn command.
Tom
On Nov 30, 2023, at 4:43 AM, Caroline Stone (JIC) via ChimeraX-users chimerax-users@cgl.ucsf.edu wrote:
Dear ChimeraX team and list subscribers,
I am making a little movie to show a complex of two proteins, but am stuck on individual movements of chain /A and /B.
If I use the move command, chain /A and /B both move independently, away from each other: move x -10 atoms /A; move x 10 atoms /B
However, if I attempt to do the same movement by going -1 or +1 over a series of 10 frames, I no longer get any movement of /A and /B. move x -1 10 atoms /A; move x 1 10 atoms /B
I can achieve movement over a number of frames, but both chains move although I tried to specify only /A. I did this based on "move axis [ distance [ frames ]]". move x -1 10 atoms /A
I feel I might be on the right track because when I use turn, I am able to trigger simultaneous independent rotation of /A and /B around their own axes (thank you for this feature by the way, last time I wondered about this it wasn't possible). cofr /A; turn y -1 90 atoms /A; cofr /B; turn y 1 90 atoms /B
My ultimate goal is to open the binding interface up a bit like opening a book. I suppose I could achieve a similar effect by setting the centre of rotation for each chain behind, rather than within - if independent movement over a series of frames isn't possible, I might experiment with that.
I updated to version 1.6 and searched the list, but I still see this behaviour with the move command. Perhaps I am missing something basic?
Thank you for any pointers you might be able to share! Caroline
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