Constellation is an implementation of Radial (Pie) Menus for Quicksilver.

It was implemented by Alex Eiser and Nicholas Jitkoff as a project for a class on software architectures for user interfaces.

Pie menus allow very efficient mouse-based interaction, taking advantage of Fitt's law and human's superb angular memory.

If you would like to learn more. Please take a look at the Paper (←-dead link) about it.

• To show a radial menu of children for an item:
  1. Invoke Quicksilver
  2. Select any direct object
  3. use the “Show Radial Menu” Action

• To show a radial action menu for an item:
  1. Invoke Quicksilver
  2. Select any direct object
  3. use the “Show Radial Action Menu” Action

• When a radial menu is showing:
  1. Left click to bring up a radial menu for the item
  2. Right click to bring up a radial action menu for the item
  3. Double click to perform the default action on the item

• Quicksilver

Constellation can sometimes cause crashes when windows are dismissed