2012

Table Of Contents
If you select a closed curve and click EXTRUDE, SWEEP, LOFT, and REVOLVE
on the ribbon, you create:
A solid if the Mode option is set to Solid.
A surface if the Mode option is set to Surface.
A procedural surface if the SURFACEMODELINGMODE system
variable is set to 0.
A NURBS surface if the SURFACEMODELINGMODE system variable
is set to 1.
An associative surface if the SURFACEASSOCIATIVITY system variable
is on.
In this illustration, the same profile creates a solid (left), a procedural surface
(middle), and a NURBS surface (right).
Geometry That Can Be Used As Profiles and Guide Curves
The curves that you use as profile and guide curves when you extrude, sweep,
loft, and revolve can be:
Open or closed
Planar or non-planar
Solid and surface edge subobjects
A single object (to extrude multiple lines, convert them to a single object
with the JOIN command)
362 | Chapter 8 Work with 3D Models