Hi Aaron. On Mon, Nov 11, 2024 at 8:38 PM Aaron Meurer wrote: > > I haven't followed all the changes to plotting. Do you know what the > PR SymPy was that changed this?
That's not so straightforward ... different things seem to have broken at different times. But maybe I wasn't using them correctly in the first place? The example which assigns to "parent" (https://nbviewer.org/github/mgeier/python-audio/blob/master/sympy/sympy-matplotlib-animations.ipynb#Changing-the-Whole-Plot) still partially works with https://github.com/sympy/sympy/commit/5d1e056. I'm saying "partially", because it now cycles the plotting colors, which it didn't do before (see below for the cause of that problem). One commit later (https://github.com/sympy/sympy/commit/46558492a7), I'm getting this exception: AttributeError: 'MatplotlibBackend' object has no attribute 'fig' The "fig" attribute is now not set in the constructor anymore, but instead at a later point, e.g. when calling process_series(). So should I call that first? If yes, it is still not working. Even though this avoids the exception, now the animation simply consists of an empty plot (i.e. only the axes are visible). BTW, I'm using "show=False". When I drop that, the "has no attribute 'fig'" goes away, but the animation still doesn't work (instead, there are a few stray plots generated). Going back in the history, I found that https://github.com/sympy/sympy/commit/79a2cd5432177f662b2bebe1ffc3b3bc4ca575b9 is the commit that introduces the color cycling. According to the commit message, the color change is definitely intentional, so I guess I'll have to try to work around that behavior change. The first example still doesn't work at this point in the history. It just shows an empty plot (only the axes are visible). I wanted to go further back in history, but I wasn't able to install a combination of SymPy/NumPy/Matplotlib/Python that worked. Is there anything else I should try? cheers, Matthias > Aaron Meurer > > On Sat, Nov 9, 2024 at 1:24 PM Matthias Geier <[email protected]> > wrote: > > > > Hi all. > > > > A few years ago, I have documented how to create Matplotlib animations > > from SymPy plots: > > https://nbviewer.org/github/mgeier/python-audio/blob/master/sympy/sympy-matplotlib-animations.ipynb > > > > This has worked quite well (as can be seen in the link), but in the > > meantime, the behavior/usage of the MatplotlibBackend seems to have > > changed and some of the approaches don't work anymore with the latest > > SymPy/Matplotlib versions. > > > > Most notably, the process_series() method doesn't seem to have the > > desired effect anymore. > > > > Note that the approach using get_points() still works perfectly, and > > the approach using get_segments() is deprecated, and is not expected > > to work anymore. > > > > Does anyone have an idea how to make the approaches using > > MatplotlibBackend work again? > > > > cheers, > > Matthias > > > > -- > > You received this message because you are subscribed to the Google Groups > > "sympy" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [email protected]. > > To view this discussion visit > > https://groups.google.com/d/msgid/sympy/CAFesC-dx1U1%2BLHDpU4J-SqLs21cszhCaDXSLYSf2dEuTDEjYDg%40mail.gmail.com. > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/sympy/CAKgW%3D6K1hVkWmw3FZ0nHBemS4oBkAqC4kRHdR9uxSXXk6f21EA%40mail.gmail.com. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/sympy/CAFesC-cvTU-VOsMgoCRAdWE5jzrSVG5%3Dk-dASH%2BXwaXo8HJ63w%40mail.gmail.com.
