Develop new capability for GRADS: Save animated gifs.

[Arlindo da Silva]

Alex.

  I am not quite sure what you are suggesting. Are you talking about an
on-line or off-line capability? In either case, this can be achieved rather
easily with imagemagick's convert utility.   For example, if you have a
metafile with multiple frames, gxyat will create a series of PNG image
files:

% gxyat -o frame-%02d.png frames.gx

Creating animated GIF can be accomplished with something like:

% convert -adjoin -o frames.gif frame-*.png

Of course, the individual image flles would be better created inside grads
with gxyat or printim.

   Arlindo


On Wed, Jan 20, 2010 at 4:17 PM, Alex Fierro
<alexandre.o.fierro at gmail.com>wrote:

> HI Arlindo:
>
> As you remember as long time ago I argued/proposed that saving data into
> TXT file would be quite useful, which has been done successfully after many
> other users did request it as well.
>
> Another, I believe, quite useful capability that is sadly not present in
> GRADS is the ability to SAVE Animated GIF files produced by grads using
> gxgif. It is easy to loop over time but impossible to SAVE the resulting
> animation with a single command in GRADS.
>
> Any plans of including this function soon ? For modelers like us, this
> would be a *very* welcome capability. This new command, like gxgif, could
> include flags for the x and y resolution which would allow users to reduce
> the usually large size of the animations (although gifs are usually small)
>
> Cheers and let me know what you think,
>
> Alex-
>
> --
> -------------------------------------------------------------
>
> Alexandre Fierro, PhD
> Post-Doctoral Fellow-Research Associate/
> Los Alamos National Laboratory, Los Alamos, NM (LANL)
> Computational Atmospheric/Fluid Dynamics - EES-16
> MS D 401, Los Alamos, NM 87545
> Phone: 505-664-0303
> E-mail: alexfierro at lanl.gov
>
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>
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>


-- 
Arlindo da Silva
dasilva at alum.mit.edu
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