Re: [Matplotlib-users] Bug in matplotlib 1.4.2

[Eric F. <ef...@ha...>]

On 2015/02/09 8:19 AM, Thomas Caswell wrote:
> Can you test with 1.4.3rc1?  I believe this has been fixed.

I don't think so.  I can reproduce it on master.  Regardless of the "ms" 
kwarg, I see only a pixel.

Eric

>
> On Mon Feb 09 2015 at 1:07:28 PM Alex Böhnert <ale...@gm...
> <mailto:ale...@gm...>> wrote:
>
>     Dear all,
>
>     when plotting scattered data with the "," marker, the data points do
>     not show up either on screen (Qt4Agg backend) or in saved bitmap
>     images (tested with png); they do show up if the plot is exported as
>     pdf.
>
>     Example code (run in "ipython --pylab" for simplicity):
>
>     import numpy as np
>     a = np.random.standard_normal(500)
>     b = np.random.standard_normal(500)
>     plot(a,b,',')
>     savefig("testplot.png")
>     savefig("testplot.pdf")
>
>     Expected result: Scatter plot of random data points, both on screen
>     and in saved files.
>
>     Actual result: Empty-looking plot both on screen and in png, but
>     plot as expected in pdf.
>
>     System info: Arch linux, Kernel 3.17.6 (and 3.18.6), matplotlib
>     version 1.4.2, Python 3.4.2, IPython 2.3.1., numpy version 1.9.1,
>     Qt4Agg backend.
>
>     Related: I posted this to the arch-bugtracker
>     (https://bugs.archlinux.org/task/43392) and asked on stack overflow
>     whether anyone else saw this
>     (http://stackoverflow.com/questions/28112916/python-matplotlib-does-not-display-data-points-bug-or-something-else).
>     Apparently, the same thing happens in Ubuntu, too.
>
>     Hope this is the right place to report this.
>
>     Cheers,
>     Alex
>
>     P.S.: I sent the same mail to the list a few weeks ago without
>     registering, but it was never posted, nor replied to. It might be a
>     good idea not to suggest at
>     http://matplotlib.org/faq/troubleshooting_faq.html#getting-help that
>     just sending a mail to the list will achieve anything...
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