Apple Motion 4 - Manual (Page 518)

Repel: With this checkbox selected, when the object gets closer to the object of attraction
than the Relaxed Length value, the objects are pushed apart. When this checkbox is
deselected, no repelling force is applied.
Include X, Y, and Z: Buttons that allow you to specify the space in which the affected
object moves back and forth around the assigned object. For example, when X and Y are
enabled, the object moves back and forth in the XY plane; when Y and Z are enabled,
the object moves back and forth in the YZ plane.
HUD Controls
An image well in the HUD lets you set the Attract To object. You can also control the
Spring Tension and Relaxed Length parameters and axis assignment. A checkbox lets you
turn on the Repel parameter. When this behavior is applied to an object that contains
multiple objects (such as a group, particles, text, or the replicator), the Affect Subobjects
checkbox also appears in the HUD.
Related Behaviors
• Attracted To
• Attractor
• Drift Attracted To
• Drift Attractor
• Orbit Around
• Vortex
Vortex
The opposite of the Orbit Around behavior. While the Orbit Around behavior causes one
object to orbit around another target object, the Vortex behavior exerts a force on all
objects surrounding the object to which the Vortex behavior is applied.
Parameters in the Inspector
Affect: A pop-up menu that limits which objects in your project are affected by the Vortex
behavior. There are three options:
• All Objects: All objects in the Canvas are affected by the Vortex behavior.
• Related Objects: The default setting. Only other objects that are within the same object
as the object of attraction are affected.
• Specific Objects: Only objects appearing in the Affected Objects list are affected by the
Vortex behavior.
Affected Objects: A list that appears when Specific Objects is chosen in the Affect pop-up
menu. Drag objects from the Layers tab into this list to be affected by the Attractor
behavior when the Specific Objects option is selected in the Affect pop-up menu. To
remove an item from the list, select the item and click Remove.
• Layer: This column lists the name of the layer containing the object.
518 Chapter 9 Using Behaviors