Simple method for realtime plotting

[Charles Manning]

Hi folks

After some fiddling I came up with a really simple way to get a real-time plot
of variables changing over time. This is getting data out of the Linux
kernel, but the same basic idea can be used with other data too.

While this runs on Linux, the same basic idea should also run on a Windows PC
using Cygwin.

http://embeddedjanitor.blogspot.com/


-- Charles


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[Michael Hope]

ZedGraph (http://zedgraph.org/) is quite good as well. C# though, but
it does do real time scrolling graphs quite well.

matplotlib does a wide range of pretty graphs but I haven't figured
out how to run it in real time. I was keen to hook it in as the
backend for a USB scope that I have.

-- Michael

[Charles Manning]

Thanks

I'll look at those too.

The bash+gnuplot approach would likely not be any use for high speed data but
it gives really good bang for bucks in processing data up to a few
samples/sec.

-- Charles