[chimerax-users] [EXT] Re: Turntable rotation

[Tom Goddard]

Hi Brandon,

  So what you need is two commands

	vseries play #1 cacheFrames 300 pauseFrames 32
	perframe tableTop frames 10 interval 32

They can be on one line separated by a semicolon, but for recording a movie I typically put them in a command file (*.cxc) and open the file.  Both these commands return immediately without drawing anything, and then as graphics frames are drawn they do their thing at the appropriate frame numbers.  To record a movie you would use a command script like

movie record
vseries play #1 cacheFrames 300 pauseFrames 32
perframe tableTop frames 10 interval 32
wait 320
movie encode ~/Desktop/cells.mp4 quality high

I'm not totally sure the "32" options are right, might need 33 on one of them and 330 on the wait.  Would need to check the documentation for vseries pauseFrames and perframe interval to see what the number exactly means.

	Tom


> On May 16, 2020, at 9:10 AM, Elaine Meng <meng at cgl.ucsf.edu> wrote:
> 
> Hi Brandon,
> It doesn't make sense to try to use perframe to perform some multiframe action.  
> 
> Perframe is literally per frame (graphics redraw frame, not vseries timepoint or trajectory frame).  I agree it can be confusing that "frame" is used to mean these different things.  See Frames Terminology:
> <http://rbvi.ucsf.edu/chimerax/docs/user/commands/coordset.html#framesdef>
> 
> I hope this helps,
> Elaine
> -----
> Elaine C. Meng, Ph.D.                       
> UCSF Chimera(X) team
> Department of Pharmaceutical Chemistry
> University of California, San Francisco
> 
>> On May 16, 2020, at 8:24 AM, Scott, Brandon L. <Brandon.Scott at sdsmt.edu> wrote:
>> 
>> Thanks for the reply, I was able to figure out the turning, but when I am using it in a perframe command, the views are ignorned.
>> 
>> The result that I am after is the following: At each timpoint in a vseries, step through 4 views, and move on to the next frame.
>> 
>> I used the following alias for the smooth turns around in a circle with named views.
>> alias tableTop  view West 8; wait 8; view South 8; wait 8; view East 8; wait 8; view North 8; wait 8;
>> 
>> I tried the following and each had odd behaviors:
>> 
>> perframe "vseries play #1 jumpTo $1 cacheFrames 300; wait 1; tableTop;" range 0,9
>> This resulted in no view changes at all, just played through the timeseries.
>> 
>> perframe "tableTop; vseries play #1 jumpTo $1 cacheFrames 300;" range 0,9
>> This resulted in a view change after the last frame of the vseries only.
>> 
>> If I call the tableTop alias in the command line it works as expected.
>> 
>> I also tried with showing and hiding the models but with no better results.
>> 
>> Thanks for the help,
>> -Brandon
>> ____________________
>> Brandon Scott, PhD
>> CZI Imaging Scientist, Research Assistant Professor
>> SDSMT, Nanoscience and Nanoengineering
>> From: Elaine Meng <meng at cgl.ucsf.edu>
>> Sent: Friday, May 15, 2020 1:40 PM
>> To: Scott, Brandon L. <Brandon.Scott at sdsmt.edu>
>> Cc: chimerax-users at cgl.ucsf.edu <chimerax-users at cgl.ucsf.edu>
>> Subject: [EXT] Re: [chimerax-users] Turntable rotation
>> 
>>    *** This email is from an EXTERNAL sender. Use CAUTION before opening attachments or clicking links.***
>> 
>> Hi Brandon,
>> I'm not sure what you gave as the axis of rotation in the "roll" (or "turn") command, but it can be any vector, specified in either the "laboratory" coordinate system or that of the model.
>> 
>> <http://rbvi.ucsf.edu/chimerax/docs/user/commands/roll.html>
>> <http://rbvi.ucsf.edu/chimerax/docs/user/commands/pointspec.html#vector>
>> 
>> I hope this helps,
>> Elaine
>> -----
>> Elaine C. Meng, Ph.D.
>> UCSF Chimera(X) team
>> Department of Pharmaceutical Chemistry
>> University of California, San Francisco
>> 
>>> On May 15, 2020, at 10:37 AM, Scott, Brandon L. <Brandon.Scott at sdsmt.edu> wrote:
>>> 
>>> I would like to create an animation where the camera is spun around at a constant azimuthal angle so the object appears to spin on a tabletop. Currently, when I use roll, when it spins to the backside I see underneath the model rather than remaining on top.
>>> 
>>> Any help is greatly appreciated.
>>> -Brandon
>>> 
>> _______________________________________________
>> ChimeraX-users mailing list
>> ChimeraX-users at cgl.ucsf.edu
>> Manage subscription:
>> https://www.rbvi.ucsf.edu/mailman/listinfo/chimerax-users
> 
> 
> _______________________________________________
> ChimeraX-users mailing list
> ChimeraX-users at cgl.ucsf.edu
> Manage subscription:
> https://www.rbvi.ucsf.edu/mailman/listinfo/chimerax-users
>