Apple Motion 3 - Manual (Page 496)

496 Chapter 5 Using Behaviors
To create a clock animation:
1 Place the graphics layers constituting the hands, face, and pendulum into the Canvas,
arranging them to create the clock.
The hands are on top, the face in the middle, and the pendulum should be in the back.
By default, the anchor point is located at the center of each object. Prior to adding
behaviors to animate these layers, you need to move the anchor points so that the
layers move the way they’re supposed to. In this example, the hands should spin about
the center of the clock face, not the center of the hand itself, and the pendulum should
swing from its top.
2 Choose the Adjust Anchor Point tool, and move the anchor points of both hand layers
and the pendulum layer to the center of the clock face.
Now that the composition is set up to be animated, the only remaining thing to do is
to assign behaviors to each of the layers.
3 Select the minute hand layer, open the Properties tab in the Inspector, Control-click the
Rotation parameter, then choose Rate from the shortcut menu.