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Continuity 1017
• Mapscontainerswithallmaptypesandmap
parameters.
• Single Map containers with a sing le map type
and its associated parameters.
• Object containers directly below a named
object item defining the creation parameters of
an unmodified object.
•ModifiedObjectcontainersholdingallofthe
modifiers applied to an object as well as the
creation p a rameters.
Continuity
A property of curves, including NURBS curves. A
curveiscontinuousifitisunbroken.
Continuity Level
Levels of curve continuity:
Left: C
0
, because o f the angle at the top
Middle: C
1
, at the top a semicircle joins a semicircl e of
smaller radius
Right: C
2
, the difference is subtle but t he r ight side i s not
semicircular and blends with the left
The level of continuity is a way to describe
cur v ature. A cur ve with an angular cusp is C
0
cont inuous. The curve is continuous but its
derivative is not. A curve whose curvature changes
has C
1
continuity. The curve and its derivative are
both continuous but its second derivative is not. A
curve with u ninterrupted, unchanging curvature
has C
2
continuit y. NURBS curves must have at
least C
0
continuity; a continuity level greater
than C
2
is un necessary for most 3D computer
modeling.
Control Lattice
Control lattice surrounding the NURBS mo del of the
fountain basin
In NURBS modeling, the lattice described by
theCVsthatspecifyaCVCurveorCVSurface.
In viewports, this appears as a dotted yellow
framework when you edit the curve or surface a t
the CV sub-object level. You can also choose to
display the control lattice in viewports at all times.
Control Point
In Physique, a vertex used to control the cross
sections of envelopes, bulges, and tendons.