<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Oliver,<div class=""><br class=""></div><div class=""> 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</div><div class=""><br class=""></div><div class=""><b style="font-family: Times; text-align: -webkit-center;" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>perframe "vol #0 level .1 level $1" range .1,.02 frames 100</b></div><div class=""><br class=""></div><div class=""> as illustrated on the movie command examples page</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span><a href="http://www.cgl.ucsf.edu/chimera/data/movie-howto-mar2012/movie_examples.html" class="">http://www.cgl.ucsf.edu/chimera/data/movie-howto-mar2012/movie_examples.html</a></div><div class=""><br class=""></div><div class=""> Tom</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Apr 1, 2015, at 11:47 AM, Oliver Clarke <<a href="mailto:olibclarke@gmail.com" class="">olibclarke@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">Is there any way to alter the density level in a gradual fashion during an animation? <br class=""><br class="">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.<br class=""><br class="">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.<br class=""><br class="">Oliver.<br class="">_______________________________________________<br class="">Chimera-users mailing list<br class=""><a href="mailto:Chimera-users@cgl.ucsf.edu" class="">Chimera-users@cgl.ucsf.edu</a><br class="">http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users<br class=""><br class=""></div></blockquote></div><br class=""></div></body></html>