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MathGroup Archive 2001

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Re: Mathematica generating gifs for avi problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg29984] Re: Mathematica generating gifs for avi problem
  • From: axc at poincare.EECS.cwru.edu
  • Date: Fri, 20 Jul 2001 03:28:47 -0400 (EDT)
  • Organization: Case Western Reserve University
  • References: <9iaub3$17i$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

i found that Mathematica 4.0 running on a >1ghz pc still chokes generating
multiframe TIFFs. however multiframe GIFs seems to be ok, though they
are limited to 8bit. here's examples of the animations i'm generating

http://vorlon.cwru.edu/~axc/Thesis/Animations/Data6a/
http://vorlon.cwru.edu/~axc/Thesis/Animations/Data2h/

- in case you're wondering what these are i'm studying phase-locking
in so-called hybrid oscillators which have piecewise constant vector
fields but with switching and control discontinuities. so, e.g., the
avi's in Data6a show the same controller parameters at two different
robot speeds showing legs locking to different gaits, consistent w
biological data. email me if you have more questions

alan calvitti
axc at eecs.cwru.edu





>gleam at flashmail.com writes:
>
> Alan, there is a much easier way!  Export the animation as a TIFF file, and 
> then open it in an animation package that can read the multi-frame TIFF 
> data.  I use JASC Animation Shop 3, which comes with Paint Shop Pro 
> 7.  This program can read TIFF, and export AVI.  Here is a simple example:
> 
> Short[ani1 =
>      Table[Plot3D[Sin[x y + z], {x, 0, 3}, {y, 0, 4}, Axes -> False,
>          PlotRange -> {-1, 1}, DisplayFunction -> Identity, PlotPoints -> 50,
>          Mesh -> False], {z, 1, 7, 1/3}]]
> 
> Export["animation.tif", ani1, "TIFF", ImageSize -> {500, Automatic}]
> 
> 
> Paul
> 
> 
> >i'm trying to generate an avi movie for powerpoint. since Mathematica for
> >windows doesn't support this directly, i'm exporting individual .gifs
> >with Mathematica's Export[], then using shareware to convert to avi.
> >
> >problem is, i have 1000's of frames and it's taking a long time to
> >render each one. shouldn't it be possible to direct Mathematica not to render
> >and rather to save these plots? i'm using Export[,"GIF"] and i tried
> >DisplayFunction->Identity but doesn't work. any runarounds?
> >
> >alan calvitti
> >axc at eecs.cwru.edu


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