[Chimera-users] Smoothly change level of density map in animation?

Tom Goddard goddard at sonic.net
Thu Apr 2 09:05:14 PDT 2015

Hi Oliver,

  The animation timeline has limited capabilities and is useful for very simple movies.  To make any fancier movie you use a command script and movie command.  The perframe command can vary a map threshold level

	perframe "vol #0 level .1 level $1" range .1,.02 frames 100

 as illustrated on the movie command examples page

	http://www.cgl.ucsf.edu/chimera/data/movie-howto-mar2012/movie_examples.html <http://www.cgl.ucsf.edu/chimera/data/movie-howto-mar2012/movie_examples.html>


> On Apr 1, 2015, at 11:47 AM, Oliver Clarke <olibclarke at gmail.com> wrote:
> Is there any way to alter the density level in a gradual fashion during an animation? 
> I would like to first show the overall envelope of a cryoEM map, and then smoothly change to a higher contour level where I can see helices etc.
> Many other parameters, such as the presence of a MSMS surface or the position of a clipping plane, seem to automatically gradually transition between two key frames of an animation, but density level doesn’t seem to do so.
> Oliver.
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