Hi list
I've been asked to transform my app to something more "dynamic"
it currently reads an xml file, it has now to read a stream of xml from
a socket (I can handle this part :D) and plot each point as they are
coming from the network.
I'll end up having tons of points over multiple axes; I guess doing
sonething like fig.plot(concat(old-data,new-point)) would be rather
inefficient and I wonder if someone ever made something like this using
matplotlib?
or any hints on where to start from?
thanks 
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Sandro Tosi wrote:
Hello guillaume,
I've been asked to transform my app to something more "dynamic"
it currently reads an xml file, it has now to read a stream of xml from
a socket (I can handle this part :D) and plot each point as they are
coming from the network.
I'll end up having tons of points over multiple axes; I guess doing
sonething like fig.plot(concat(old-data,new-point)) would be rather
inefficient and I wonder if someone ever made something like this using
matplotlib?
You can refer to animation examples [1] for code that does what you want.
[1] http://matplotlib.sourceforge.net/examples/animation/index.html
at the very end, you update the line data with set_ydata() ,
set_xdata() or set_data() and then call a draw() on the figure.
Regards,
oh, I knew about set_{x,y,}data() but I actually though I had to feed it
the whole dataset each time.
It's clear enough in the examples 
maybe the doc should be a bit more verbose?
http://matplotlib.sourceforge.net/api/artist_api.html?highlight=set_ydata#matplotlib.lines.Line2D.set_ydata
thanks.
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On Mon, Jun 29, 2009 at 10:53, guillaume ranquet<granquet@...2572...> wrote:
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