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Apple Motion 2 User Manual

Page 353

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Chapter 5

Using Behaviors

353

The Throw behavior is also useful when you’re moving an object through a simulation.
For example, you might move the object past other objects that have Attractor or
Repel behaviors applied to them. Since the Throw behavior only applies a single force
to move the target object at the initial frame of the behavior, any other behaviors that
interact with the target object have greater influence over its motion.

Important:

The Throw behavior does not apply a continuous force, nor can you create

changes in direction or speed, since this behavior cannot be keyframed. If you need to
create keyframed changes in direction or speed, use the Wind behavior. If you need to
create a more complex animation path, use the Motion Path behavior.

Dashboard control
The Dashboard lets you specify the direction and speed of the Throw behavior by
dragging an arrow within a circular region. The direction of the arrow defines the
direction of movement, and the length of the arrow defines speed. A slider to the right
lets you adjust the scale of the Dashboard control, increasing or decreasing the effect
the control has over the object.

Press the Shift key while dragging the arrow to constrain it to 45 degree angles. Press
the Command key to change the arrow’s direction without affecting its length.

Note: The maximum speed you can define with the Dashboard is not the maximum
possible speed. Higher values can be entered into the Continuous Rate or Ramp to
Final Value parameter in the Behaviors tab of the Inspector.

Affects

Parameters affected

Object

Position

Controls direction and speed of Throw

Adjusts scale of the Dashboard control

01112.book Page 353 Sunday, March 13, 2005 10:36 PM