fortunately the program you have to extend is in Perl ;=)
You can try GD::Graph and additionally you can take a look to doughnut charts with gd:graph where marto points to a useful article.
See also this extract
For the interactive part.. I suppose you need some web interface to achieve interactivity, or a GUI like a Tk program.
L*
In reply to Re: Library for realtime graphs in perl.
by Discipulus
in thread Library for realtime graphs in perl.
by tobbes
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