Apple Motion 2 - Manual (Page 373)

Chapter 5 Using Behaviors 373
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: A slider that can be used to reduce the distance attracted objects overshoot the
object of attraction. Lower Drag values result in the object overshooting the object of
attraction, moving past and then careening back around toward the target object
again and again. Higher Drag values result in the object coming to rest sooner.
Related behaviors
“
Attractor ,” “ Drift Attracted To ,” “ Drift Attractor ,” “ Orbit Around ,” “ Spring ,” “ Vortex ”
Attractor
If you apply an Attractor behavior to an object, other objects that lie within the area of
influence move toward it. You can manipulate the strength with which other objects
are attracted, as well as the distance required for attraction to begin.
By default, objects overshoot the object of attraction and bounce around, never
coming to rest. The Drag parameter lets you adjust this behavior, changing whether
attracted objects overshoot and bounce around, or whether they eventually slow down
and stop at the position of the target object.
The Attractor behavior can affect all objects in the Canvas that fall within the area of
attraction, or you can limit its effect to a specific list of objects, by using the Affect
parameter.
The Attractor behavior can also be applied to objects in motion. If you animate the
position of the target object to which you’ve applied the Attractor behavior, all other
objects in the Canvas continue to be attracted to its new position.
Start of Attractor effect End of Attractor effect
Affects Parameters affected
Other objects Position
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