Dear all,<div><br></div><div>I&#39;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&#39;s a way to do the same thing without having to create the .bild file. </div>

<div><br></div><div>I already checked the &quot;shape&quot; 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?</div>

<div><br></div><div>Thanks in advance. Kind regards,</div><div>-- <br><div style="text-align:center"><img src="http://farm5.static.flickr.com/4045/4194316803_f773f9c017_o.jpg"><br></div><br>
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