I can reproduce Thomas' problem with Agg backend. It does not happen if frame_on is True. And I guess Thomas' guess in the first email might be right. I had a quick look at the mpl source and I don't think draw(), clf() or savefig() try to clear the canvas. The problem is not visible if frame_on is True.
Thomas, Put following line after the savefig() function fig.canvas._lastKey = None and see if it solves the problem (savefig command in your original email is outside the for loop, I guess this was a typo). The Agg backend has a clear() method which fills the canvas with (1, 1, 1, 0). I tried to put this method in a few different places. It worked for savefig(), but I couldn't get it work in the interactive backend (GtkAgg). Regards, -JJ On Fri, Oct 31, 2008 at 6:35 AM, Thomas Pfaff <[EMAIL PROTECTED]> wrote: > Hi, > > Thanks for the quick reply. > > > My OS is Windows XP with Service Pack 3 > > I'm using an easy-install .egg distribution. Whether I downloaded it > somewhere or simply installed it using easy-install, I don't remember. > > I have another version of matplotlib (0.91.2) installed, which does not seem > to be used. This one was installed using the Windows installer from the > matplotlib homepage. This should not interfere, should it? > > Running the script with --verbose-helpful gives the following results (I > removed parts of the path information) > > $HOME=\pfaff > CONFIGDIR=\pfaff\.matplotlib > matplotlib data path > \python25\lib\site-packages\matplotlib-0.98.3-py2.5-win32.egg\matplotlib\mpl > -data > loaded rc file > \python25\lib\site-packages\matplotlib-0.98.3-py2.5-win32.egg\matplotlib\mpl > -data\matplotlibrc > matplotlib version 0.98.3 > verbose.level helpful > interactive is False > units is False > platform is win32 > Using fontManager instance from \pfaff\.matplotlib\fontManager.cache > backend TkAgg version 8.4 > > > Now that I think of it: > In the IPython reference, I read about possible problems with tk. When > starting IPython I use -pylab -tk because otherwise I can only do one plot > and the plotting window hangs once I issue another plotting command. > As I didn't find where to tell matplotlib to behave like these two switches > were set, I get by with constantly restarting my interpreter when working > interactively. > Could this be part of the problem? > > Cheers, > > > Thomas > >> -----Original Message----- >> From: Michael Droettboom [mailto:[EMAIL PROTECTED] >> Sent: Thursday, October 30, 2008 2:21 PM >> To: Thomas Pfaff >> Cc: matplotlib-users@lists.sourceforge.net >> Subject: Re: [Matplotlib-users] no canvas reinitialization between calls >> to savefig >> >> I can't reproduce this here with SVN trunk. I get what you expect. >> >> Can you provide the information outlined here: >> >> http://matplotlib.sourceforge.net/faq/troubleshooting_faq.html#report-a- >> problem >> >> as well as the backend you are using? >> >> Cheers, >> Mike >> > > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
