2012

Table Of Contents
A single region (to extrude multiple regions, convert them to a single object
with the REGION command)
Example: Use Splines to Create 3D NURBS Surfaces
Splines are one of the many 2D object types that can be lofted, extruded,
swept, and revolved to create NURBS surfaces. Other 2D objects that can be
used include lines, polylines, arcs, and circles. Splines, however, are the only
2D object customized to create NURBS surfaces. Because they allow you to
adjust tolerance, degree, and tangency, they are better suited than other types
of 2D profiles (line, plines, circles) for surface modeling.
Many of the same commands used with NURBS surfaces, can also be used
with CV splines. These include:
CVADD
CVREMOVE
CVREBUILD
Create 3D Models | 363