From mboxrd@z Thu Jan  1 00:00:00 1970
From: Samuel Wales <samologist@gmail.com>
Subject: Re: refreshing pictures that are results of code blocks
Date: Wed, 15 May 2019 14:46:56 -0700
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To: Alan Schmitt <alan.schmitt@polytechnique.org>
Cc: emacs-orgmode list <emacs-orgmode@gnu.org>

oh.  :]

i was looking forward to viewing the refreshing pictures you spoke of.

wish i could help.


On 5/15/19, Alan Schmitt <alan.schmitt@polytechnique.org> wrote:
> Hello,
>
> I'm playing with picture generating code like this:
>
> #+begin_src python :results file :session :var
>  matplot_lib_filename="figure2.png" :exports both
> import matplotlib.pyplot as plt
>
> data = [14.0, 7.6, 11.2, 12.8, 12.5, 9.9, 14.9, 9.4, 16.9, 10.2,
> 14.9, 18.1, 7.3, 9.8, 10.9, 12.2, 9.9, 2.9, 2.8, 15.4, 15.7, 9.7,
> 13.1, 13.2, 12.3, 11.7, 16.0, 12.4, 17.9, 12.2, 16.2, 18.7, 8.9,
> 11.9, 12.1, 14.6, 12.1, 4.7, 3.9, 16.9, 16.8, 11.3, 14.4, 15.7,
> 14.0, 13.6, 18.0, 13.6, 19.9, 13.7, 17.0, 20.5, 9.9, 12.5, 13.2,
> 16.1, 13.5, 6.3, 6.4, 17.6, 19.1, 12.8, 15.5, 16.3, 15.2, 14.6,
> 19.1, 14.4, 21.4, 15.1, 19.6, 21.7, 11.3, 15.0, 14.3, 16.8, 14.0,
> 6.8, 8.2, 19.9, 20.4, 14.6, 16.4, 18.7, 16.8, 15.8, 20.4, 15.8,
> 22.4, 16.2, 20.3, 23.4, 12.1, 15.5, 15.4, 18.4, 15.7, 10.2, 8.9,
> 21.0]
>
> plt.clf()
> plt.hist(data, bins=10, edgecolor='black')
> plt.grid(True)
> plt.axis([0, 25, 0, 25])
>
> plt.savefig(matplot_lib_filename)
> matplot_lib_filename
> #+end_src
>
> and it works great when I evaluate it: it creates a link to the
> picture,
> and when I hit Enter on the link, the picture is displayed in the
> buffer.
>
> The problem is when I modify the code block and run it again, if I
> hit
> Enter on the resulting link, I see the old picture. The new one is
> there
> (if I open it, it is modified), but somehow the old picture is
> cached.
>
> Is there a way to disable this cache?
>
> Thanks,
>
> Alan
>


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