Creates an FCurve parameter definition
for use with a CustomProperty or
CustomOperator. An FCurve of this
type is often called a "Profile Curve" because, unlike most
FCurves, this curve does not animate any parameter, but instead is
available for use in any fashion the plug-in developer or user
wishes.
Unlike parameters that have simple types like an Integer or a
String, this Parameter is an instance of an FCurve. It uses units
of Frames for its x axis, but because it does not directly animate
any object this axis can actually be interpreted in any fashion. An
example use of an FCurve parameter can be found on the Bulge
Operator.
The FCurve object is retrieved via the Parameter.Value method. This should not
be confused with the method for retrieving an FCurve that is
animating a "basic" parameter (the Parameter.Source method).
In order to view the FCurve on the Property Page for the CustomProperty or CustomOperator use PPGLayout.AddFCurve.