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Torus Knot Extended Primitive 189
have the effect of pushing their corresponding
facets in and out. Defau lts=100.
Reset—Returnsaxestotheirdefaultsetting.
Vertices group
Parameters in the Vertices group determine the
internal geometry of each facet of a polyhedron.
Center and Center & Sides increase the number of
vertices in the object and therefore the number of
faces. These parameters cannot be animated.
Basic—Facets are not subdivided beyond the
minimum.
Center—Each facet is subdivided by placing an
additional vertex at its center, with edges from
each center point to the facet corners.
Center & Si des—Each facet is subdivided by placing
an additional vertex at its center, with edges f rom
each center poin t to the facet corners, as well as
to the center of each edge. Compared to Center,
Center & Sides doubles t he number of faces in t he
polyhedron.
Note: If you sc ale the axis of t he object, the Ce nter
option is used automatically, unless Center & Sides
is already set.
To see the internal edges shown in the figure, tur n
off Edges Only on the D isplay command panel.
Radius—Sets the radius of any polyhedron in
current units.
Genera te M apping Coords—Generates coordinates
for applying mapped materials to the polyhedron.
Default=on.
Torus Knot Extended Primitive
Create panel > Geometry > Extended Primitives > Object
Type rollout > Torus Knot button
Create menu > Extended Primit i ves > Torus Knot
Use Torus Knot to create a complex or knotted
torus by drawing 2D curves in the normal planes
around a 3D curve. The 3D curve (c alled the Base
Curve) can be either a circle or a torus knot.
YoucanconvertatorusknotobjecttoaNURBS
surface (page 1–1116).
Example of torus knot
Procedure
To create a Torus K not:
1.
On the Create menu, choose Extended
Primitives > Torus Knot.
2. Dragthemousetodefinethesizeofthetorus
knot.
3. Click, then move the mouse vertically to define
the radius.
4. Click again to finish the torus.
5. Adjust the parameters on t he Modify panel.