Instruction Manual

Chapter 9 Behaviors 308
As you trim the behavior, a tooltip appears, indicating the new location of the Out point as well
as the new duration of the behavior.
Change the duration of a behavior in the Timeline
1 Move the pointer to the In or Out point of any behavior in the Timeline.
2 When the pointer changes to the trim pointer, do one of the following:
•
Drag the In point to delay the beginning of the behavior’s eect.
•
Drag the Out point to end the behavior’s eect before the end of the object.
Trimming the Out point of a behavior often sets the object to its original state beyond the Out
point behavior. For many behaviors, using the Stop behavior to pause the object’s animation is a
more ecient method than trimming its Out point. Another way to stop a behavior’s eect and
leave the aected object in the transformed state is to adjust a behavior’s Start and End Oset
parameters. See Change the oset of Parameter behaviors on page 309 for more information.
Control Simulation behaviors
The ideal use for behaviors (with the exception of Motion Tracking behaviors) is creating uid
motion graphics that do not require specic timing. This is especially true with the Simulation
behaviors, which let you create sophisticated interactions among multiple objects in your project
with minimal editing.
Unlike Basic Motion behaviors, you cannot stop or change the motion of a Simulation behavior
in the Timeline. However, you can aect the rate of a Simulation behavior by modifying its
duration in the Timeline. You can also change the starting frame of the behavior.
Because the Simulation behaviors simulate natural eects, such as Gravity, the laws of inertia
apply: an external force sets the object in motion, and that object stays in motion even after
the active force is no longer present. Changing the duration of a Timeline bar for a Simulation
behavior does stop the “active” force on the object but does not stop the motion of the object.
You can, of course, control Simulation behaviors by modifying their parameters.
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