Apple Motion 4 - Manual (Page 508)

• Throw
• Wind
Orbit Around
Similar to the Attracted To behavior, the Orbit Around behavior’s default parameter
settings give the object sufficient initial velocity to orbit around another object in a perfect
circle.
Note: Behaviors such as Attractor and Repel applied to nearby objects may disrupt an
object with the Orbit Around behavior applied to it.
Animation path of an
object affected by the
Orbit Around behavior
Parameters in the Inspector
Affect Subobjects: This parameter appears when this behavior is applied to an object
that contains multiple objects, such as a group, a particle emitter, a replicator, or a text
layer. When this checkbox is selected, all objects within the parent object are affected
individually. When this checkbox is deselected, all objects within the parent object are
affected by the behavior together, as if they were a single object.
Object: A well that defines the object to orbit around. To set the defined target object,
drag the object from the Layers tab to the Object well in the Orbit Around HUD or
Inspector. In the Layers tab, you can also drag the target object onto the Orbit Around
behavior.
Strength: A slider defining the speed at which the object moves.
Falloff Type: A pop-up menu that determines whether the distance defined by the
Influence parameter falls off linearly or exponentially. The default is Linear.
• Linear: Object attraction falls off in proportion to the object’s distance.
• Exponential: The closer an object is within the area of influence, the more strongly it
is attracted, and the faster it moves toward the object of attraction.
508 Chapter 9 Using Behaviors