2011

Table Of Contents
See also:
Create a Solid or Surface by Extruding on page 968
Create a Solid or Surface by Sweeping on page 972
Create a Solid or Surface by Lofting on page 976
Create a Solid or Surface by Revolving on page 980
Surfaces Vs. Solids
When you extrude, sweep, loft, and revolve curves, you can create both solids
and surfaces. Open curves always create surfaces, but closed curves can create
either solids or surfaces depending on the situation.
If you select a closed
curve and click EXTRUDE, SWEEP, LOFT, and REVOLVE
on the ribbon, you create:
A solid
if the Solid tab is active.
A procedural surface if the Surface tab is active.
A NURBS surface if the Surface tab is active and the
SURFACEMODELINGMODE system variable is set to NURBS.
An associative sur
face if the Surface tab is active and if surface
associativity is on.
In this illustration, the same profile creates a solid (left), a procedural surface
(middle), and a NURBS surface (right).
Overview of Creating Solids and Surfaces | 967