On Fri, 02 Nov 2012 16:45:22 +0100, <matplotlib-users-requ...@lists.sourceforge.net> wrote:
> Message: 5 > Date: Fri, 2 Nov 2012 12:01:35 +0100 > From: Vlastimil Brom <vlastimil.b...@gmail.com> > Subject: Re: [Matplotlib-users] Figures piling up in Tkinter GUI > (1.2.0rc2) > To: matplotlib-users@lists.sourceforge.net > Message-ID: > <cahzapeof6fexs32-us7_btddf8vc4fejr-a94s9uau16af-...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > 2012/11/1 Hans Bering <hans.ber...@arcor.de>: >> Hello everybody, >> >> I'm building a small Tkinter GUI using matplotlib, in which I have to >> change/update plots quite often depending on user input (with different >> contents & sizes, in different places in the GUI, etc.; but always only >> one figure at a time). >> >> As a first resort, I regenerated the figures with plt.figure(...) >> whenever necessary; unfortunately, the program happily accumulated >> memory with >> every new figure until the computer would no longer cooperate in a >> timely fashion. The following minimal script should demonstrate the >> tendency: >> > ... > > Hi, > I'd recommend to use an embedded plot and only clear and replace its > content [...] > I only roughly adapted that source to use your function and the memory > usage appears to be more effective (although there is some increase > too - as displayed in Process Explorer). Would some variation of the > following work for you? [...] Hi Vlastimil, thanks for your effort; I had tried the approach of clearing & replacing the plot myself, too. Unfortunately, that approach has a different problem: Because of the figure's size, I have to present it with scrollbars, and clearing & reusing the plot does not seem to work when resizing & scrolling the plot. I had posted that problem as a question at Stackoverflow (as http://stackoverflow.com/questions/13197469 ), since I hoped it might be "easier"; i.e., just a misunderstanding on my part of how to wire together the scrollbars/canvas/figure. Please note that, while I also use plt.figure(...) in the post at Stackoverflow, the effect remains the same when using Figure(...) and ax.plot(...). So basically I'm stuck between a rock and a hard place - I can either have the memory issue reported previously; or the plot won't behave properly with scrolling+resizing. I am wondering: Should repeatedly creating Figures in a Tkinter GUI work, and could this be a Matplotlib bug worth mentioning on some bug tracker? Thanks & Regards Hans ------------------------------------------------------------------------------ LogMeIn Central: Instant, anywhere, Remote PC access and management. Stay in control, update software, and manage PCs from one command center Diagnose problems and improve visibility into emerging IT issues Automate, monitor and manage. Do more in less time with Central http://p.sf.net/sfu/logmein12331_d2d _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
