On Tuesday, May 15, 2012, Gökhan Sever wrote:
> Hello,
>
> I have encountered a weird plotting issue recently using a recent mpl
> clone. See the linked pdfs for better demonstration of the issue:
>
> http://atmos.uwyo.edu/~gsever/data/vocals_RF04_NU05_newmpl.pdf
> http://atmos.uwyo.edu/~gsever/data/vocals_RF04_NU05_oldmpl.pdf
>
>
> newmpl file is created using the latest master branch (cloned and setup
> today)
> oldmpl is created using mpl v1.1.0 (
> https://github.com/downloads/matplotlib/matplotlib/matplotlib-1.1.0.tar.gz
> )
>
> Scroll down to page 4 in each file and you will see the wrong
> plotted behavior of alwp_lcl (black line) variable on newmpl file comparing
> to the correct version that is shown on oldmpl.
>
> I was trying to figure out a way to correct this and I raised y-axis max
> to 2400 and then the line looks fine. However I have other data that show
> similar wrong behaviors, so I decided to try earlier mpl versions since I
> know that those plots were looking correct earlier (at least a few months
> back). Trying v1.1.x branch gave me the same results. Note that these data
> contain "nans". Are nan handling changed in recent mpl code or the way the
> data is plotted out of margins? I can't reproduce this with synthetic data.
>
> Any ideas as to what could be going wrong here?
>
> Thanks.
>
> --
> Gökhan
>
I do recall some changes were made for v1.1.x with regards to autoscaling.
Another change was also made with respect to Bbox clipping. I can't
recall enough details to know if they are a part of this issue.
Ben Root
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