[SciPy-user] Fast simple plotting

Jerry lanceboyle at qwest.net
Thu Jan 4 16:11:50 CST 2007

Check out PLplot at http://plplot.sourceforge.net/index.html. It is a  
native C library with Python bindings. Dont' be put off by the rather  
crappy graphical examples on the home page. I don't know how fast it  
is but I'd say give it a try. It is a very active sourceforge project.

BTW, gnuplot can only plot data that is first written to disk (other  
than that which it calculates itself) so it might be slower than you  
would like.


On Jan 4, 2007, at 3:10 AM, Lars Friedrich wrote:

> Hello everyone,
> I am using python/scipy to control some hardware using ctypes and some
> self written dlls. Now I have the need to display some data online  
> while
> doing other things. Until now I used matplotlib to plot everything,  
> but
> this is too slow for the online display. What do you recommend?
> What I would like to do as a start is a small simple oscilloscope. I
> read data from a data acquisition card and plot it to a simple 2d- 
> plot.
> I would like to reach roughly 5 frames per second but *being able  
> to do
> something else at the same time*.
> As I said, I tried matplotlib. At the moment I am playing around with
> VTK. I read about chaco. I know that there is gnuplot. Certainly there
> is also wx or something equivalent.
> Is there anyone doing something similar? What do you recommend?
> Thanks for every comment
> Lars Friedrich

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