Oops forgot to change the subject line.
On 3/11/13 9:34 AM, David Hoese wrote:
> You likely need to "show()" the canvas. I usually do this by calling
> "fig.canvas.show()" before the for loop.
> Since you are using a Qt4 backend the canvas used by the figure is a
> QWidget, the basic component of a Qt4 GUI. I don't know if there is a
> more matplotlib specific way of doing this, but when dealing with a
> larger system this is how I do it.
>
> I would also add a sleep ("from time import sleep") of a couple
> seconds for testing to make sure you are getting through the entire
> for loop before you can see it.
>
> Please CC in any replies, thanks.
>
> -Dave
>
> On 3/11/13 8:58 AM, ndbeck...@gmail.com wrote:
>> 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
>
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