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Re: Compilation problem / octave-2.0.16 / movie / mpeg question
From: |
Michael W. Martin |
Subject: |
Re: Compilation problem / octave-2.0.16 / movie / mpeg question |
Date: |
Thu, 21 Feb 2002 10:53:43 -0600 |
On Thursday, February 21, 2002, at 05:09 AM, SA wrote:
(2) Is there any movie / animation facility in octave?
I personally do not know of one.
Would a octave->gnuplot->framestore->imagemagik->mpeg movie
approach be sensible and could I code this via an octave mfile without
delving into the octave source?
I would think so. Octave has a 'system' command which allows you to
use Unix commands. It also has gplot commands that allow you ti drive
gnuplot directly. Between those two you should be able to make it work.
Is there a way of sucking a bitmap back from a gnuplot window and
displaying it from octave in a sensible way (ie could I use this
to provide the equivalent of M(i)=getframe to build a movie?).
Yes. In the imagemagick package there is an 'import' command that
allows one to grab a copy of any Xwindow's contents and turn it into a ppm
(portable pix map). I am not convinced this is the best way to do that,
but it is certainly one possibility. Another is that gnuplot can output
plots to a file. So you could have gnuplot display the plot and then
output the plot to a postscript file, for example, and then convert the
postscript file into MPEG format (via 'convert').
Mind you I have not tried this myself, but I would think it could be
made to work.
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Michael W. Martin Phone: (281) 333-2177
Draper Laboratory FAX: (281) 333-5276
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