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In the following image, the Orbit Around (Simulation) behavior is applied to the large
circle. The center text is assigned as the object that the circle moves around. The red
animation path represents the motion the circle travels over its duration. The Orbit Around
behavior is the same duration (300 frames) as the large circle to which it is applied.
In the next image, the Orbit Around behavior is trimmed in the Timeline to a shorter
duration (190 frames) than the object to which it is applied. Notice the change in the
shape of the animation path: At frame 190, where the Orbit Around behavior ends, the
object (the circle shape) stops moving around its target and continues moving off the
Canvas. The Orbit Around behavior—the active force—is no longer present, but the
motion of the circle does not stop.
Moving Behaviors in Time
In addition to changing a behavior’s duration, you can also move its position in the
Timeline relative to the object under which it’s nested. This lets you set the frame where
that behavior begins to take effect.
To move a behavior in the Timeline
1 Click anywhere in the middle of a behavior’s bar in the Timeline.
2 Drag the behavior to the left or right to move it to another position in the Timeline.
388 Chapter 9 Using Behaviors