Re: [Matplotlib-users] saving image files with *Agg backends

[John H. <jdh...@ac...>]

>>>>> "Darren" == Darren Dale <dd...@co...> writes:

    Darren> Hi Everyone, I'm having trouble saving plot images with
    Darren> the *Agg backends. I've tried TkAgg, GTKAgg, WXAgg, and
    Darren> get the following error message (here for WXAgg):

    Darren> Do not know how to handle extension *.jpg 14:48:54 Debug
    Darren> e:\Projects\wx2.4\src\msw\app.cpp(439):
    Darren> 'UnregisterClass(canvas)' failed with error 0x00000584
    Darren> (class still has open windows)

    Darren> WX and GTK backends work. I'm using the precompiled 0.60.2
    Darren> version of Matplotlib (congratulations on the new
    Darren> release), python 2.3.4, windows XP. I'm calling my program
    Darren> from a DOS prompt to get the error messages, working in
    Darren> non-interactive mode and trying to save the image using
    Darren> the save-button widget.

The agg backend can only save png, ps, eps, and svg.  jpeg is
available from backend_wx and backend_gtk.  Personally, I've never
encountered a figure for which jpeg was a better output format than
png, which is why I haven't worked to provide a jpeg output to agg,
but it would be a good thing to add, at some point.

Cheers,
JDH