question about the figure class

It seemed to work fine, but maybe I just didn't spot the

    > problems. Now I can't really understand how the
    > set_transform calls in Figure._set_artist_props could
    > possible have worked.

Basically, noone ever uses the figure transform. One could, if you
want to draw in figure coords (0,0 is lower left of figure, 1,1 is
upper right, it's just that this doesn't happen in real life very
often. I doubt any of the backend_driver scripts utilize this.