2013

Summary
After entering the last two points for a 3D face, the command repeats
automatically using the these two points as the first two points of the next
3D face. For example:
List of Prompts
The following prompts are displayed.
Specify
first point (page 31) or [Invisible (page 31)]: Specify
a point (1) or enter i
First Point Defines the start point for the 3D surface. After entering the first
point, enter the remaining points in a natural clockwise or counterclockwise
order to create a normal 3D face. If you locate all four points on the same
plane, a planar face is created that is similar to a region object. When you
shade or render the object, planar faces are filled.
Invisible Controls which edges of a 3D face are visible, allowing for accurate
modeling of objects with holes. Entering i or invisible before the first point
of an edge makes the edge invisible.
The invisible specification must precede any object snap modes, XYZ filters,
or coordinate input for that edge. You can create a 3D face in which all edges
are invisible. Such a face is a phantom; it does not appear in wireframe
presentations but can hide material in line drawings. 3D faces do appear in
shaded renderings.
You can combine 3D faces to model complex 3D surfaces.
3D Commands | 31