Jae-Joon Lee wrote:
> Looking at the code, the "transparent" option set alphas of paches to
> 0, which I think is simply ignored in ps backend (which does not
> support alpha). I think it is better if the visibility of patches is
> set to False when the "transparent" option is set.
The ps backend does not support alpha in general, but it does use
alpha=0 as a flag to not render. The problem is that there is a single
alpha for an artist with both line color and face color. The artist
alpha kwarg and attribute are at the root of much of the present
alpha-mess in mpl.
>
> Setting patch's (face) color to "none" work for me. If it does not
> work, please post a complete script.
I think this is what needs to be fixed in figure.py: the transparent
option should be manipulating the patch facecolors, not the patch artist
alpha value.
Eric
>
> Regards,
>
> -JJ
>
>
>
> On Mon, Apr 26, 2010 at 2:38 AM, T J <tjhn...@gmail.com> wrote:
>> Not sure when this occurred, but I just updated to the latest SVN and
>> still see the issue:
>> I am no longer able to save transparent figure---specifically, I
>> need no patch drawn for the figure and axis when saving to EPS.
>>
>>>>> savefig('test.eps', transparent=True)
>> The above should work, but it doesn't.. Explicitly setting the patch
>> colors to 'none' doesn't work either.
>>
>> Anyone else seeing this?
>>
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