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190 Chapter 5: Creating Geometry
Inter face
Creation Method rollout
Diameter—Draws the object from edge to edge.
You can change the center location by moving the
mouse.
Radius—Draws the object from the center out.
Parameters rollout > Base Curve group
Provides parameters that affect the base curve.
Knot/Circle—With Knot, the toru s i nterweaves
itself, based on various other parameters. With
Circle, the base curve is a circle, resulting in a
standard torus if parameters such as Warp and
Eccentricityareleftattheirdefaults.
Radius—Sets the radius of the base curve.
Segments—Sets the number of seg ments around
the perimeter of the torus.
PandQ—Describes up-and-down (P) and
around-the-center (Q) winding numbers. (Active
only when Knot is chosen.)
Wa rp Count—Sets the number of "points" in a star
shapearoundthecurve.(ActiveonlywhenCircle
is chosen.)
Wa rp H e igh t—Sets the height of the "points" given
as a p ercent age of the base curve radius.
Parameters rollout > Cross Section group
Provides parameters that affect the c ross sec tion
of the torus knot.
Radius—Sets the r adius of the cross sec tion.
Sides—Sets the number of sides around the cross
section.
Eccentricity—Sets the ratio of the m ajor to minor
axes of the cross sec tion. A value of 1 prov ides
a circular cross sect ion, wh ile other values create
elliptical cross sections.
Twi st—Sets the number of times the cross section
twists around the base curve.
Lumps —Sets the number of bulges in the torus
knot. Note t hat the Lump Height spinner v alue
must be greater than 0 to see any effect.
Lump Hei ght —Sets the height of the lumps, as a
percentage of the radius of the cross section. Note
that the Lumps spinner must b e greater than 0 to
see any effect.
Lump O f f set —Sets the offset of the start of the
lump s, measured in degrees. The purpose of this
valueistoanimatethelumpsaroundthetorus.
Parameters rollout > Smooth group