Re: [Matplotlib-users] real time plotting

[Neal B. <ndb...@gm...>]

mpl is 1.2.0
Fedora linux


On Mon, Mar 11, 2013 at 9:57 AM, Neal Becker <ndb...@gm...> wrote:

> Tried with/and without plt.ion(), no difference.  Nothing is drawn.  When
> I kill it with C-c, briefly a window is flashed.
>
> import matplotlib as mpl
>
> import matplotlib.pyplot as plt
> plt.ion()
> 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()
>
>
>
> On Mon, Mar 11, 2013 at 9:55 AM, Francesco Montesano <
> fra...@gm...> wrote:
>
>> 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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>>
>>
>