Hides parts of the
surface defined by curves-on-surface.
Edit NURBS > Trim
Tool > 
- Selected State
-
If
you want to keep the region you trimmed away, select Keep.
To discard the region you trimmed away, select Discard.
The default is Keep.
- Shrink Surface
-
Causes
the underlying surface to shrink to just cover the retained regions.
This permanently changes the surface geometry and cannot be restored
by untrimming, but Undo will still work.
- Fitting Tolerance
-
Specifies
how precisely the Trim Tool uses the shape of
the curve-on-surface when it trims the surface. The default value
works well in most cases, but you can use a smaller value to increase precision.
- Keep Original
-
The
original surface is retained after the trim is performed. If the
surface and the curve-on-surface were created with construction
history turned on, you must keep the original geometry.
