On Tue, Feb 23, 2010 at 6:45 PM, David Goldsmith
<d_l_goldsm...@yahoo.com> wrote:
> 1) why doesn't this:
>
>>>> for cmap in dir(cm):
>>>> try:
>>>> ax.imshow(image, cmap)
>>>> canvas.print_figure('image_'+cmap)
>>>> except:
>>>> pass
>
> "work" (i.e., simply bypass those elements of dir(cm) which cause imshow to
> raise an exception, but then continue on as if nothing had happened)? Is
> this a bug?
>
I believe this happens because you never clear your figure (or axes)
between print_figure.
imshow does not erase an existing image and you end up with bunch of
images overlapped.
And the exceptions are keep being raised as the image you created with
cmap="LUTSIZE" is still there.
calling ax.cla() before ax.imshow works for me.
Regards,
-JJ
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