[Chimera-users] Drawing arrows without using .bild file

Eric Pettersen pett at cgl.ucsf.edu
Tue Feb 21 12:06:55 PST 2012

Hi Victor,
	You can avoid writing/reading a file by using a StringIO object to  
emulate the file.  How to do that is described here:


Let me know if you have any problems.


On Feb 21, 2012, at 9:08 AM, Victor Muñoz wrote:

> Dear all,
> I'm trying to make a script that draws an arrow on every atom and  
> every frame during a trajectory using the MD movie. Right now, the  
> script creates a .bild file to draw the arrows, but it is not a very  
> good approach since it is creating a new file for every frame of the  
> trajectory. I was wondering if there's a way to do the same thing  
> without having to create the .bild file.
> I already checked the "shape" command but you can´t use it to draw  
> an arrow. Maybe I should make a combination between a cylinder and a  
> rectangle to draw an arrow? Is there any other easy way to do that?
> Thanks in advance. Kind regards,
> -- 
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> Chimera-users at cgl.ucsf.edu
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