Creo Simulate > Reference Links > Function of Coordinates
  
Function of Coordinates
Use this option to apply a structure constraint (FEM mode), thermal boundary condition, or load that is a function of the current coordinate system. You can select one or more entities on which to apply the constraint or load.
You define this variation by specifying a function that is used as a scale factor. If you are using Function of Coordinates for loads or thermal boundary conditions, Creo Simulate typically multiplies the load value by the scale factor to approximate the load behavior. For force or moment loads and heat loads, Creo Simulate makes an exception if you defined the load distribution as Total Load. In this case, Creo Simulate applies the function, respecting its shape, but does not multiply the function by the load value. Thus, the software maintains the original total load value.
When you select this option, the button and entry box appear on the dialog box. Click the button and the Functions dialog box appears under one of the following conditions:
If a user-defined function has not been defined for your model
If an internal function has been defined for your model
You can use this dialog box to create, copy, review, or delete a function.
For an example, see Example: Function of Coordinates.
Return to Spatial Variation.