[wxPython-users] Re: Draw method in PlotCanvas class for a number of points (>80,000) takes too much time

[Christopher Barker]

maser rati wrote:

> Numpy rocks. However I'm looking at matplotlib to
> display the data, it has the option of displaying
> subplots on a frame, and it's syntax is sort of
> similar to Matlab... But wx.plot.lib is much simpler. 

yes, it is -- but MPL is far more flexible.

> During first run it looks like Matplotlib also takes
> lot of time (~5-10secs) to plot a 80,000 point data
> set.

It may well, development priority is focused on making MPL work with 
three different num* packages, and LOTS of back-ends -- performance does 
suffer some from that.

You might want to try a different back-end: wxAgg produces the nicest 
output, but the native wx back-end may be faster.

Also, you'd be hard-pressed to see 80,000 distinct points on a moderate 
sized plot anyway, Maybe you'd be better off thinning your data before 
plotting somehow.

-Chris

-- 
Christopher Barker, Ph.D.
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