RibDefinition.ExtentDistance Property
Parent Object: RibDefinitionDescription
Read-only property that returns the parameter that corresponds to the distance value for rib feature defined with a finite extent. This property returns a parameter only if the ExtentType is kFiniteRibExtent, else this property returns Nothing. Also, in the case where this is a newly created RibDefinition object or it has been copied from an existing RibDefinition object, this property returns Nothing since there isn’t a parameter created yet.