8

1168 Chapter 9: Sur face Modeling
If the surfaces intersect at two or more locations,
the intersection closest to the seed point is the one
that creates the curve.
Procedure
To crea te a s ur f a ce-sur f a ce i nter section cur ve:
1.
Turn on Create Surface-Surface
Intersection Curve in the NURBS toolbox, or
Surf x Surf on the Create
Curves rollout.
2. Click the first surface
, then the second.
If the two surfaces inte
rsect, a curve that lies
along their intersect ion is created.
Inter face
Sur f-Surf Intersection Curve rollout (creation
time)
Trim Controls gro
up
Trim 1 and Trim 2—When on, trim a surface against
the intersectio
n curve. When off, the surface isn’t
tr immed. Tr im 1 trims the first parent surface
you clicked, and Tr im 2 tr ims the second parent
surface.
If the intersection curve does not pass completely
across a surface, tri mming is impossible, and the
affected surf
aceisdisplayedintheerrorcolor
(orange by default).
Flip Trim 1 and Flip Trim 2—When on, trim the
associated s
urfaceintheoppositedirection.
U S eed and V S eed—Change the UV location of
theseedvalueonsurface1,thefirstsurfaceyou
clicked. If there is a choice of intersections, the
intersection closest to the seed point is the one
used to create the c urve.
Sur f-Surf Intersection Curve rollout
(modification time)
Trim Controls group
Trim 1 and Trim 2—When on, trim a surface against
theintersectioncurve.Whenoff,thesurfaceisn’t
trimmed. Tr im 1 trims the first parent surface
you clicked, and Trim 2 tr ims the second parent
surface.
If the intersection curve does not pass completely
across a surface, trimming is impossible, and the
affected surface is displayed in the er ror color
(orange by default).
Flip Trim 1 and Flip Trim 2—When on, trim the
associated surface in the opposite direction.
U S eed and V S eed—Change the UV location of
theseedvalueonsurface1,thefirstsurfaceyou
clicked. If there is a choice of intersections, the
intersection closest to the seed point is the one
used to create the c urve.