2012

You can use lines, linear polyline segments, and linear edges of solids or
surfaces as an axis.
NOTE Select an edge subobject by pressing Ctrl while you select an edge.
X (Axis) Sets the positive X axis of the current UCS as the positive axis
direction.
Y (Axis) Sets the positive Y axis of the current UCS as the positive axis
direction.
Z (Axis) Sets the positive Z axis of the current UCS as the positive axis
direction.
Reverse Changes the direction of the revolve; similar to entering a - (minus)
angle value. The revolved object on the right shows a spline revolved at the
same angle as the object on the left, but using the reverse option.
1662 | Chapter 18 R Commands