Apple Motion 2 Getting Started - Manual (Page 77)

Chapter 2 The Playground 77
When the bottom edge of each object hits the lower edge of the screen, the object is
deflected and bounces upward.
As the project plays, each object bounces up and down.
Other Simulation behaviors that also include the Affect Objects parameter include
Align To Motion, Drag, Gravity, Random Motion, and Rotational Drag.
Using the Orbit Around and Vortex Behaviors
The Orbit Around behavior makes an object orbit around another object in a perfect
circle. The parameters of the Orbit Around behavior can be modified to create a more
interesting animation. The Vortex behavior is the opposite of the Orbit Around
behavior—Orbit Around causes one object to orbit around another target object,
whereas Vortex exerts a force on all objects surrounding the object to which the Vortex
behavior is applied. The following example uses the same group of objects (circles)
used in the previous example; however, the objects are repositioned in the Canvas.
The Orbit Around Behavior
You create animation using the Orbit Around behavior by specifying a target object
that other objects circle around. You set the target object by dragging the object to the
Object well in the Orbit Around behavior parameters.
2505.book Page 77 Wednesday, June 30, 2004 5:58 PM