Apple Motion 4 - Manual (Page 462)

Clamp
This behavior allows you to define a minimum and maximum value for an animated
parameter. In the following illustration, the center image has an applied Vortex behavior.
The outer images circle around the center image, as indicated by the red animation path.
The red lines indicate the
animation paths of the
outer image.
In the following illustration, a Clamp behavior is applied to the X Position parameter of
the image at the top of the Canvas. The Max value is set to 230 and the Min value is set
to 0. The image travels 230 pixels to the right but does not move left past the 0 point,
creating a half-circle animation.
Notice that the circle motion path is essentially cut in half. If a negative value is entered
in the Min value field, the image moves past the 0 point.
Parameters in the Inspector
Clamp At: A pop-up menu in which you choose the option to clamp parameter values
at only the minimum, only the maximum, or both the minimum and maximum.
Min: A value slider that lets you define the minimum amount of change for an animated
parameter.
Max: A value slider that lets you define the maximum amount of change for an animated
parameter.
462 Chapter 9 Using Behaviors