To Define the Path Along Which an Actor Moves

Select the Define Actor Path tool.
Select the actor.
Select the path element.
Accept to define the path.
The Define Actor Path dialog opens.
In the Start Time field, type the path's beginning frame number or time. At this frame the actor will be at the same position as when the Define Actor Path tool was used.
In the End Time field, type the path's end frame number or time.
From the Velocity option menu, choose one of the following to set the velocity that the actor moves along the path: Constant — actor moves with constant velocity; Accelerate — actor starts at zero velocity, moving with constant acceleration to the end of path; Decelerate — actor constantly decelerates to a velocity of zero at the end of path; Accelerate-Decelerate — from rest, actor accelerates to halfway along path, then decelerates to zero velocity at end of path; Infinite — actor jumps instantaneously to the path's end, at the End Time Frame.
(Optional) To set the distance the actor moves along the path, turn on Path Distance and type an expression in the adjacent field— for example, to move 88 master units per second, type 88 * tSeconds.
(Optional) To keep the actor at its original orientation, during its movement along the path, turn on Use Original Actor Orientation.
Click the OK button.
The Define Actor Path dialog closes, and the script entry for the path is added to the list in the Animation Producer dialog.

Note: The path element defines the motion only, and not the position of the actor. That is the position of the actor when this tool is used, sets the actor's location at the start of its movement along a path defined by the path element.

Note: If the selected element is closed, the path will consist of the entire element, and the identification point indicates the path's direction.

Note: Moving an actor that is attached to another actor along a path may cause that actor to move independently of the actor to which it is attached.

Note: If Path Distance is on and exceeds the length of the path, the actor will wrap along the path (as if it was a closed path).