[Matplotlib-users] animation in thread

Thomas Caswell tcaswell at gmail.com
Sat Aug 5 19:31:20 EDT 2017


GUI frameworks tend to require they be on the main thread.  Which backend /
gui framework are you using here?

In general you will have to arrange things so that the main thread owns the
GUI windows + plotting and the child threads own the computation.

Tom

On Sat, Aug 5, 2017 at 12:37 PM arash <azarmi at gmail.com> wrote:

> (Resending to correct formatting)
>
> I am new to matplotlib and I am trying to get started with animation
> library.
> There is an example here for a simple strip chart:
>
> https://matplotlib.org/examples/animation/strip_chart_demo.html
>
> I tried to use this example in a thread. I created a simple
> *threading.Thread* class, and in it's *run()* method, called:
>
> *ani = animation.FuncAnimation(fig, scope.update, emitter,
> interval=10,True)
> plt.show()*
>
> here is class:
>
> *
> import matplotlib.pyplot as plt
> import matplotlib.animation as animation
>
> class graph(threading.Thread):
>
>     def __init__(self, feeder):
>         threading.Thread.__init__(self)
>         self.fig, self.ax = plt.subplots()
>         self.scope = Scope(self.ax)
>         self.feeder=feeder
>         self.running=True
>
>     def run(self):
>         while self.running:
>             ani = animation.FuncAnimation(self.fig, self.scope.update,
> self.feeder.emit_ch1(), interval=1, blit=True)
>             plt.show()
> *
> but when I start this thread, it never shows the windows. Isn't this right
> usage?
>
>
>
> --
> View this message in context:
> http://matplotlib.1069221.n5.nabble.com/animation-in-thread-tp48055p48056.html
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