Thanks for your reply.
But nowadays drawing is done through draw_idle, so we don't trigger additional
drawing even if interactive is True. In your example, if run as a script, there
is no drawing until a call to show() is made, regardless of whether interactive
is True or False.
Best,
--Michiel.
--- On Sat, 11/13/10, John Hunter <jdh2...@gmail.com> wrote:
> From: John Hunter <jdh2...@gmail.com>
> Subject: Re: [Matplotlib-users] Mac OSX backend
> To: "Michiel de Hoon" <mjldeh...@yahoo.com>
> Cc: "mdekauwe" <mdeka...@gmail.com>, matplotlib-users@lists.sourceforge.net
> Date: Saturday, November 13, 2010, 9:22 AM
> On Sat, Nov 13, 2010 at 7:46 AM,
> Michiel de Hoon <mjldeh...@yahoo.com>
> wrote:
> > OK, thanks. With your example, I see a difference
> between the Mac OS X backend and the TKAgg/GtkAgg backend
> but only if interactive is False in matplotlibrc. If
> interactive is True, both the Mac OS X backend and the TkAgg
> backend open windows. Is this really the desired behavior?
> It seems counterintuitive that such a global parameter can
> determine whether a figure is opened or not.
> >
> > While we're on the topic, is this interactive
> parameter still needed in matplotlib? In my understanding,
> in older versions of matplotlib, interactive=False could
> significantly speed up some plots. But are there still any
> such cases with the current organization of the drawing code
> in matplotlib?
>
>
> Yes, this is the desired behavior. The interactive :
> True parameter
> is useful when working interactively from the shell, when
> want to do
>
> plt.figure()
> plt.plot([1,2,3])
> plt.xlabel('a label')
>
> and have the figure show up on the figure call and update
> on the plot
> and xlabel call. This is most definitely not what you
> want to do in a
> script, because you don't want to pay for the draw until
> the end (when
> a call to show is made). This is discussed at
>
> http://matplotlib.sourceforge.net/users/shell.html
>
> JDH
>
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