Pie Menu Stuff

This is stuff about Pie Menus. Pie menus are a naturally efficient user-interface technique -- directional selection of pie slice-shaped targets. The cursor starts out in the inactive center region of a pie, and all target slices are large, nearby, and in different directions.

Pie menus are quite easy for new users. You simple follow the pop-up directions to use them. They are also extremely efficient for experienced users. Once you know the directions, you can quickly and reliably 'mouse ahead' without looking.

Fitts' Law explains the pie menu advantage -- their fast selection speed and low error rate is due to their large target size and the small distance between each item.