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1170 Chapter 9: Sur face Modeling
UandVIsoCurves
Selec t NURBS object. > Modify panel > C reate Curves
rollout > Dependent Curves group box > U Iso Curve
button or V Iso Curve button
Select NU RB S object. > Modify panel > NURBS toolbox >
Create U Iso Curve button or Create V Iso Curve button
Iso curves in the U and V dimensions
U and V iso curves are dependent curves created
from the iso (isoparametric) lines of a NURBS
surface. You can use U and V iso cur ves to
trim
surfaces (page 1–1082)
.
Procedure
To create an iso curve:
• Turn on U Iso Cur ve or V Iso Cur ve,
then drag over the surface.
The iso lines are hig hlighted in blue as you drag.
Click to create the curve from the highlighted
iso line.
Interf ace
Iso Curve rollout (creation time)
Posit ion—Sets the iso cur ve’s position along the U
or V axis of the surface.
This parameter is animatable.
Trim Controls group
Trim—When on, trims the surface against the iso
curve.
Flip Trim—When on, flips the direction of the trim.
Iso Curve rollout (modification time)
Posit ion—Sets the iso cur ve’s position along the U
or V axis of the surface.
This parameter is animatable.