8

1218 Chapter 9: Sur face Modeling
Replace—
Lets you replace the selected curve.
Select a curve in the list, click t his button, and then
select the new curve.
Flip Trim—Reverses the direction of the trim.
Along with Edit Curves, the Insert, Remove, and
Replace buttons let you alter the curves that trim
the surface. While you are making changes, the
surfacewillgointoanerrorcondition(orange
displaybydefault)untilthecurvesyouareworking
on once again form a closed loop.
Fi l l e t S u rfa ce
SelectNURBSobject.>Modifypanel>CreateSurfaces
rollout > Depe n dent Surfaces group box > Fillet S urf
Select NU RB S object. > Modify panel > NURBS toolbox >
Create Fillet Surface button
A fillet surface is a rounded corner connecting the
edges of two other surfaces.
Fillet surface created from two parent surfa ces
Usually you use both edges of the fillet surface
to trim the parent surfaces, creating a transition
between the fillet and its parents.
Procedure
To create a fillet sur face:
1.
InaNURBSobject,turnonFilletonthe
Create Surfaces rollout or Create Fillet Surface
in the toolbox.
2. C lick to choos e the firs t p
arent surface, t hen
click to choose the second parent surface.
P otential parent surfaces are highlighted in blue
as you move the m ouse in
aviewport.
The fillet surface is cr
eated. If the fi llet surface
can’tbecreated,adefaulterrorsurfaceis
displayed (by default, the error surface displays
as orange).
Interf ace
Fillet Surface rollout (creation time)
Start R adius and End R adius—Set the radius used
todefinethefilletatthefirstsurfaceyouchose