I want to plot data in real-time on the Beagle. For example, bring in audio from the line-in, plot it, take the fft, plot it, etc. qwt [1] has been suggest as a good way to do it. Here [2] are my notes on how I got it running on the Beagle.
Now that I have the examples running I have to figure out how to hook it up to alsa.
–Mark
[1] http://qwt.sourceforge.net/index.html
[2] http://elinux.org/ECE497_LabXX_Qt#On_the_Beagle