2011

Table Of Contents
CV hull A NURBS surface is modified through its control vertices (CV) hull.
It consists of the control vertices and the lines that connect them in the U
and V directions The hull sits outside of (not on) the surface. NURBS curves
do not have a CV hull; they only have control vertices.
data link A connection between a table and an external source of data.
decimal degrees A notation for specifying latitude and longitude. For example,
35.1234°, 100.5678°.
Latitude always precedes longitude
default drawing See initial environment.
default lighting The lighting in a shaded viewport when the sun and user
lights are turned off. Faces are lighted by two distant light sources that follow
the viewpoint as you move around the model.
default value The value that is accepted when you press ENTER at a
sub-prompt. The default value is displayed in angle brackets <>. See also default.
definition points Points for creating a dimension. The program refers to the
points to modify the appearance and value of a nonassociative dimension
when the dimensioned object is modified. Also called defpoints and stored on
the special layer DEFPOINTS.
definition table The nongraphical data area of a drawing file that stores block
definitions.
degree A mathematical property of a curve or a surface that controls how
many control vertices per span are available for modeling.
The higher the degree, the more control points and the more complex shape.
But it is also harder to use, because each control point still influences the
entire curve.
Glossary | 2159