By default, the axis of rotation calculation assumes the superelevation cross-slope set in SetAxisOfRotationInfomation applies to the full width of the subassembly. If the subassembly wants to override that behavior it can specify a starting and ending offset that indicates where superelavtion was applied.
public void SetAxisOfRotationSERange( double dApplySE_StartOffset, double dApplySE_EndOffset )
Public Sub SetAxisOfRotationSERange ( dApplySE_StartOffset As Double, dApplySE_EndOffset As Double )
public: void SetAxisOfRotationSERange( double dApplySE_StartOffset, double dApplySE_EndOffset )