Introduction
The Body of Revolution Design Mode enables you to choose which section of the cross-section profile you wish to rotate. You may use the Flowthrough option which will use the entire cross-section and revolve it based on Diameter and Angle. You may also use Upper which only uses the upper (0.5 <= W <= 1.0) part of the cross-section curve or Lower which uses the lower part of the curve (0.0 <= W <= 0.5).