9

U Loft Surface 1197
The U loft is created. It is "stretched" across the
curves you click. The order in which you click
thecurvescanaffecttheshapeoftheUloft
surface.Thenamesofthecurvesappearinthe
U Loft Surface creation rollout.
While creating a U loft, you can press
Backspace to remove the last curve you
click ed from the list of U loft curves.
The Flip Normals control lets you flip the
surface normals at creation time. (After
creation, you can flip normals using controls on
the Surface Common rollout.)
4. Right-click to end U loft creation.
To create a U lof t with a utomatic attach (example):
1.
From the Create panel, create three or more
independent CV or Point NURBS c urves.
2. Go to the Modify panel, and click to t urn on U
Loft in the NURBS toolbox.
3. Select the curves in the appropriate order for
the loft.
The U loft is created. You don’t hav e to collapse
the c urves to a NURBS surface, or attach them
to an existing NURBS model (page 1–1120).
Asyoumovethemouseoveracurvethatisnot
partoftheactiveNURBSobject,thecursor
changes shape to indicate you can pick the
cur ve, but the curve is not highlighted in blue.
Interfa ce
While a U loft sub-object is selected, a rollout w ith
the U loft parameters is displayed at the bottom
of the Modify panel. This rollout appears only
when one Uloftsub-objectisselected. Itisn’t
possibletoeditmorethanoneUloftatatime,so
unlike some other N URB S sub-objects, the rollout
doesn’t appear w hen multiple U loft sub-objects
are selected.
When you create lofted a nd swept surfaces, you
have access to all the parameters, and some of the
editing operations, of the surface. You can reverse
and set start points on curves whi le you create
the sur face. You can als o use the arrow buttons
tochangetheorderofthecurves,andyoucan
remove a curve with the Remove button.
Tip: WhenyoueditaUloftsub-object,closethe
Surface Common rollout to see the U Loft Surface
rollout more easily.