Is there a reason that for the GTK backend
> gtk.DrawingArea was used instead of gtk.Layout? As far as
> I can tell gtk.Layout can do everything that
> gtk.DrawingArea can, but has the additional advantage
> that you can place widgets on the canvas, which can be
> extremely useful. I tried a quick patch (which I can send
> if anyone wants), where I got it working fine. The main
> changes (there aren't many) are where changes to the
> window would be make, 'self.window' needs to be replaced
> with 'self.bin_window', and I also found I had to connect
> to the 'size-allocate' event to have it properly
> redrawwhen the window size changed.
> As a side note, one feature that this might allow, would
> be to allow for matplotlib-widgets to be drawn using the
> GTK if the backend were detected (much like how SWT, for
> Eclipse works).
This sounds useful -- could you post a patch against CVS on the
sourceforge site (and email here when it is up) so we can test it.
I think the only reason that this wasn't used initially was ignorance
on my part. I was hoping I could blame version numbers, that this
wasn't available in pygtk 1.99.16 when mpl was released, but on quick
inspection this explanation does not appear to hold water.
> Also, on a complete tanget, does anyone know of a good
> method of saving animations done in MPL? The only two
> methods that I can think of right now are to (1)
> interface with matlab, or (2) save each frame, and create
> an animated gif. As my movies are fairly large, neither
> seem like a great option.
> After searching around some, I found pymedia, but when I
> try to import it, all it manages to do is crash. While a
> SWIG interface could be created for FFMPEG, it would be
> nice if there were some other option.
Something like this could usefully be placed in a toolkit following
the basemap model, where adding an extra layer of extension code
doesn't pose any installation or distribution woes for the core. I
think it would be useful.
In the meantime, I typically save a series of PNGs and convert them to
MPEG using image magick's "convert" or mencoder.
See also examples/movie_demo.py.
If you come up with other/better alternatives, let us know.