• All items are equally far away from the center of the pie menu. Compare this with linear popup menus.
• The target area for selecting a menu option is larger than linear popup menus, since you can just extend each pie slice to the edges of the screen.
• People tend to recall angles better then positions in linear lists. There is also muscle-memory involved, where your muscles remember the actions to take for a command.

• Java Pie Menu Demo (Java 1.2 Plug-in or appletviewer required).
• Animated Demo (200K) of how this pie menu works.
• Pie Menu Source Code is available (under the standard Berkeley software license).
• PieMenu JavaDoc Documentation is available. Javadoc Documentation for all of the GUIR research group's software is also available.
• This Pie Menu was created as part of the SATIN Project

• Don Hopkins' Pie Menu Central

Two sample images of how the pie menu works.

A sample application we are building that supports zooming and rotation. Also featured are translucent pie menus. It's not too compelling yet, since I haven't hammered out all the details, but it's possible.