Back in the early 1990s I wrote a library that worked with both the Borland and Microsoft C compilers (The Numerix Host Library) for displaying DSP data on old VGA screens. This library included it's own graphical plotting functions but over the years I have rewritten most of the library to interface to Gnuplot via an API that I call Gnuplot/C.
Gnuplot/C uses pipes to send data from C/C++ to Gnuplot's much more powerful graphical front-end.
Late last year, while updating some class notes for the Oxford University DSP Course, with some graphs generated using Gnuplot/C, I realized that it was about time I finally got around to documenting the API and making it available to others.
This was a perfect project for the Christmas/New Year holiday period and while the majority of the code was written then, the documentation took a little longer ;-)
Gnuplot/C is available from http://www.numerix-dsp.com/files.
One day I will port this to Python but maybe that is for another holiday ;-)
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Numerix-DSP Libraries : http://www.numerix-dsp.com/eval/
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