lmkli wrote:
>> What version of mpl are you using?
> My mpl version is 0.99.1
>
>> Are you modifying the default anti-aliasing in the patch collections that
>> contour is creating?
> Could you please tell me how to this? I am very new to matplotlib, thank you
> very much if you can give me some advices.
see below.
>
>> Are you seeing the problem when using the ps and pdf backends, or only with
> agg (that is, creating png files directly)?
> So far I only creating png files directly. Also, how to use ps and pdf
> backend?
The easiest way is with the pyplot savefig command: e.g.
savefig("test.pdf")
to save the current figure as a pdf.
It doesn't look to me like this solves the problem, though.
>
>> ....which has been fixed in svn.
> Do you mean I should download another mpl by svn?
That might help, but it probably won't cure the problem completely. I
don't know that there is any combination of parameters that gives
boundaries as smooth and gap-free as in your second example. You may
get a bit closer to it like this:
CS = contourf(Z)
for c in CS.collections:
c.set_antialiased(False)
(If working interactively in ipython, follow this with a "draw()"
command to force a redraw.)
Eric
>
> Thank you for your answers very much!
>
>
> efiring wrote:
>> What version of mpl are you using? Are you modifying the default
>> anti-aliasing in the patch collections that contour is creating? Are you
>> seeing the problem when using the ps and pdf backends, or only with agg
>> (that is, creating png files directly)?
>>
>> There are two problems that can contribute to this, one related to the
>> way the agg backend handles the boundaries between filled regions, and
>> the other a bug in path simplification, which has been fixed in svn.
>>
>> Eric
>>
>>
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