[Matplotlib-users] How to autoscale an animation?

[Thomas Caswell]

You are calling auto scale on the scatter artist which is trying to scale
the data for color mapping the scatter.  You want to be calling auto scale
on the Axes (in this case I think axarr[0, 4]).

Tom

On Thu, Jul 13, 2017, 12:40 David Aldrich <David.Aldrich at emea.nec.com>
wrote:

> Hi
>
>
>
> I am having difficulty autoscaling a subplot in an animation.  A snippet
> of my code is:
>
>
>
> fig, axarr = plt.subplots(nrows=2, ncols=5, figsize=(12, 6))
>
> sc_dl_layer1 = axarr[0,4].scatter(x_data, y_data, c='r', s=4)
>
>
>
> def updatePlots(i):
>
>                <snip>
>
>                sc_dl_layer1.set_offsets(np.c_[i_data_layer_1,
> q_data_layer_1])
>
> sc_dl_layer1.autoscale()
>
>
>
> ani = matplotlib.animation.FuncAnimation(fig, updatePlots, frames=None,
> interval=200, repeat=True)
>
> plt.show()
>
>
>
> This code returns:
>
>
>
>   sc_dl_layer1.autoscale()
>
>   File "C:\Program Files
> (x86)\Python36-32\lib\site-packages\matplotlib\cm.py", line 334, in
> autoscale
>
>     raise TypeError('You must first set_array for mappable')
>
> TypeError: You must first set_array for mappable
>
>
>
> How can I fix this please?
>
>
>
> Best regards
>
>
>
> David
>
>
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