[matplotlib-devel] animation of a fill_between region

[Mauricio C. <moc...@gm...>]

Hi there,

I have the following simple code to plot a (static)  fill_between region in
a given plot.


import numpy as np
import matplotlib. pyplot as plt

plt.figure()
ax=plt.axes()
ax.set_xlim([0,10000])

x = np.linspace(6000.,7000.)
y = np.ones(np.shape(x))

plt.fill_between(x,y)


I would like now to animate this band (which is a PolyCollection object,
and not a Line2D one) so that it moves smoothly to the right up together
with being stretched, that is, to the new x positions: .7200, 8400. I saw
several animations in the matplotlib homepage, but they only looped over
line or image objects, not polycollection ones, such as fill_between... Is
this possible?

In stackoverflow there is this link:
http://stackoverflow.com/questions/16120801/matplotlib-animate-fill-between-shape,
which might solve this question but I was not able to understand it fully
in order to have a simple minmal working example. If that is the right
direction, I would appreciate immensely if someone could provide such an
example!

Thanks in advance

-- 
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Prof. Mauricio Ortiz Calvao
Federal University of Rio de Janeiro
Institute of Physics, P O Box 68528
CEP 21941-972 Rio de Janeiro, RJ
Brazil

Email: or...@if...
Phone: (55)(21)25627483
Homepage: http://www.if.ufrj.br/~orca
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