Re: [Matplotlib-users] dynamically updated plots

[Lubos V. <li...@vr...>]

hi,

> 1. Would it be possible to do only shallow copy of the arrays that are
> being plotted so that on redrawing the figure, chanes in the datasets
> would be picked up automatically? If not, is Line2D.set_data(...) the
> right approach?
isn't this the way how the plotting is done? in my experience (iirc), 
the following thing works (x, y1, y2 are numpy arrays):

pylab.ion()

a, = pylab.plot(x,y1)
b, = pylab.plot(x,y2)
...
y1 += 10
y2 += 20

a.set_ydata(y1)
b.set_ydata(y2)
pylab.draw()

y1 += 10
y2 += 20
a.set_ydata(y1)
pylab.draw()

in my experience BOTH plots get updated in this procedure, so i have to 
do first a deep copy in my case to get rid of these 'unwanted effects'...

best,

-- 
Lubos _@_"
http://www.lubos.vrbka.net