Apple Motion 2 - Manual (Page 382)

382 Chapter 5 Using Behaviors
Influence: A slider that defines the radius of the circle of influence, in pixels. Objects
that fall within the area of influence move toward the object of attraction. Objects that
are outside of the area of influence remain where they are.
Drag: The default value for Orbit Around is 0, which results in a stable orbit. Any other
value causes the orbit to decay and the object to spiral into the object of attraction.
Direction: Reverses the direction of this behavior.
Related behaviors
“
Attracted To ,” “ Attractor ,” “ Drift Attracted To ,” “ Drift Attractor ,” “ Spring ,” “ Vortex ”
Random Motion
If you apply the Random Motion behavior to an object, it animates the position of the
object, and makes it move around the Canvas along a random path.
Although the motion created with this behavior is random, it’s actually predetermined
by the particular group of parameters you’ve chosen. As long as you don’t change the
parameters, the animation path created by this behavior remains the same. If you don’t
like the path that was randomly generated, click the Generate button in either the
Dashboard or the Behaviors tab in the Inspector to pick a new random seed number.
This number is used to generate a new path.
The Random Motion behavior is useful for quickly creating varied animation paths for
large numbers of objects you want to move at the same time. For example, you can
create an arrangement of ten objects in the Canvas and apply the Random Motion
behavior to all of them.
Animation path of an object affected by
Random Motion behavior. The shape of the
path is determined by the Seed parameter.
01112.book Page 382 Sunday, March 13, 2005 10:36 PM