Interchangeable pick handler for zooming graphical user interface

A method for displaying zooming objects that reside in a zooming space on a display which provides a zooming view, the method comprising:

• defining characteristics for a plurality of zooming objects that reside in a zooming space, wherein the relative locations of zooming objects can be changed in three dimensions within the zooming space;
• using a view manager to manage the zooming view by identifying viewed zooming objects as those from the plurality of zooming objects that reside in the zooming view;
• and
• determining whether viewed zooming objects are targeted to process an event using a first pick handler, the first pick handler having a first picking policy for determining whether viewed zooming objects are targeted to process an event, the first pick handler being interchangeable with a second pick handler having a second picking policy for determining whether viewed objects are targeted to process an event, the first picking policy differing from the second picking policy.

An apparatus for displaying zooming objects that reside in a zooming space on a display which provides a zooming view, the apparatus comprising:

• means for defining characteristics for a plurality of zooming objects that reside in a zooming space, wherein the relative locations of zooming objects can be changed in three dimensions within the zooming space;
• means for managing the zooming view by identifying viewed zooming objects as those from the plurality of zooming objects that reside in the zooming view;
• and
• means for determining whether viewed zooming objects are targeted to process an event using one of a first picking policy and a second picking policy for determining whether viewed zooming objects are selected, the first picking policy differing from and being interchangeable with the second picking policy.