Creating 3D Geometry - AutoCAD 2011 and AutoCAD LT 2011: No Experience Required - page 857

O
For clarity, the
illustrations for
the kitchen window
are shown using
the Conceptual
visual style.
FiGuRE 16.30 With Dynamic UCS turned on, the box's base is oriented
parallel to the wall (top); the box's base is completed (bottom).