2009

NOTE Expression controllers can work only with the individual XYZ components
of Euler rotation. You can't assign an expression to TCB Rotation or other kinds of
rotation controllers.
See also:
■
Expression Techniques on page 361
■ Expression Controller Techniques on page 3161
■ Trigonometric Functions on page 370
■ Vectors on page 373
Procedures
To assign a constant value to a variable:
1 Highlight the variable name in the Scalars or Vectors list.
2 Click Assign To Constant.
A new dialog opens.
3 On the dialog, enter the new value (or, in the case of a vector, values) for
the constant, and then click OK.
To assign a controller to a variable:
1 Highlight the variable name in the Scalars or Vectors list.
2 Click Assign To Controller.
The Track View Pick subdialog is displayed, showing the track hierarchy.
The dialog display is similar to the Track View hierarchy.
3 Highlight the track for the variable to use, and then click OK.
Example: To create an expression that moves a sphere in a precise circle:
1 Create a sphere with Radius=15.0.
You'll use Track View to create the Expression controller.
2 In the active viewport, right-click the sphere and click Curve Editor.
3156 | Chapter 15 Animation