Yeah, it's similar to that, except that I'm not limited to the movements between two keys. I can move the legs in any direction and the hydros (cylinders) will follow accordingly. Your example shows the "legs" moving only up and down, whereas mine will let me move in any direction. I'll try to get an animated example up soon for you so u can see what I'm talking about.
Dave Baer
Professor of Digital Arts
Digital Media Arts College
Boca Raton, Florida
dbaer@dmac.edu