This tool lets me visualize and clean data from the eyetracker i built for my dissertation. 50,000,000 samples (collected in 50 sessions), with state transition flags synced with time along the x-axis. Green means game has started, red means game has stopped. The scrollbar at the top pages the data for a session so I can easily query/refresh it in chunks (defined by limit). Changing the limit changes the zoom, essentially.

You can toggle lines on/off with the show buttons.

lots of noise in the data due to blinks and/or momentary loss of track -- but this tool lets me quickly isolate the signal through the noise.

Anyway... fun fun...

Another piece of software in development... Shows a texture representing the concentration of saccades (eye movement samples) from my custom-built eyetracker that I use to study player eye movements in a 3D video game (an FPS for this experiment).

Built using QtJambi technology preview 3 (UI) and Java for data analysis. QtJambi is a really great UI tool for Java that is about to be released. I LOVE the fact that between QtJambi and Qt 4.2, I can develop high-quality user interfaces that are cross platform, fast, and still easy to style. I know I sound like an advert, but the Qt tools are really maturing quite nicely, in my opinion.