[gtkdatabox] Waterfall plots with gtkdatabox?

["Getz, Robin" <Robin Getz analog com>]

Hi.

I was wondering if anyone had done any waterfall plots with gtkdatabox?

For those not familiar, have a look at:
http://www.cqham.ru/foto/data/500/ESDR29.jpg

the top half is just the fft of the data (X = amplitude, Y = frequency). This can be done pretty easily with 
gtkdatabox as is. (and we do it).

the bottom half is the "waterfall", (where X = time (normally scrolls down, one line is a instant in time, Y 
= frequency, and the color of the pixel is the amplitude).
This view makes it easier to see time varying signals. For example, when you can "see" when a something that 
is hopping frequency, changes:
http://i.imgur.com/fue5b.png

This sort of thing exists a lot in test electronics, and SDR equipment.

http://www.testequity.com/Images/new/keysight/N9344C-750.jpg

http://www.customer.rohde-schwarz.com/live/rs/mediadb/psfile/image/47/FSVRside4bf1478d8891e.jpg

Has anyone done this in gtkdatabox?

I could great my own with gtk_databox_points_new(), but that seems pretty painful to manage everything 
myself, and would make sense (if others see value in it), to do it mostly internal, and I would just need to 
"add" lines.

Thoughts?

Thanks
-Robin