Re: [Matplotlib-users] real time plotting

[Francesco M. <fra...@gm...>]

Dear Neal,

2013/3/11 Neal Becker <ndb...@gm...>

> I want to update a plot in real time.  I did some goog search, and saw
> various
> answers.  Trouble is, they aren't working.
>
> Here's a typical example:
>
> import matplotlib.pyplot as plt
> import numpy as np
> fig=plt.figure()
> plt.axis([0,1000,0,1])
>
> i=0
> x=list()
> y=list()
>
> while i <1000:
>     temp_y=np.random.random()
>     x.append(i)
>     y.append(temp_y)
>     plt.scatter(i,temp_y)
>     i+=1
>     plt.draw()
>
> If I run this, it draws nothing.
>
> This is my matplotlibrc:
> backend : Qt4Agg
> mathtext.fontset: stix
>

do you use interactive mode? (plt.ion() before creating the figure)
Francesco



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