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U Loft Surface 1199
Replace—
(Disabled.)
Display While Creating—When on, the U loft
surfaceisdisplayedwhileyoucreateit.Whenoff,
the loft is created more quickly. Default=off.
Flip Normals—Reverses the direction of the U loft’s
normals.
U Loft Surface rollout (modification time)
UCurvesThis list shows the name of the curves
you click, in the order you click them. You can
select curves by clicking their names in this list.
View por ts display the selected curve in blue.
Initia lly the first curve is the one selected.
You can also select more than one curve at a time.
This is useful when you use the Edit Curves button.
Arr ow B uttonsUsethesetochangetheorderof
curves used to construct the U loft. Select a curve
in the list, and then use the arrows to move the
selection up or down.
Thesebuttonsareavailableatcreationtime.
Curve Properties group
These controls affect individual curves you select
in the U Curves list, as opposed to properties of the
loft surface in general. They are enabled only when
youhaveselectedacurveintheUCurveslist.
ReverseWhen set, reverses the direction of the
selected curve.
Start Point—Adjusts the position of the curve’s
star t point.
This control is disabled if the curve is not a closed
curve.
While youre adjusting start points, a dotted
blue line is displayed between them, to show the
alignment. The surface is not displayed, so it
doesn’t slow down adjustment. When you release
the mouse button, the surface reappears.
Tens ion—Adjusts the tension of the loft where it
intersects that curve.
Use COS Tangen ts If the curve is a curve on
surface,turningonthistogglecausestheUloftto
use the tangency of the surface. This can help you
blend a lof t smoothly onto a surface. Default=off.
Thistoggleisdisabledunlessthecurveisapoint
or CV curve on surface.
Flip Tangents—Reverses the direction of the
tangents for that curve.
This toggle is disabled unless the curve is a point or
CV curve on surface and Use COS Tangents is on.
Auto Align Curve S tar ts—When on, aligns the start
points of all curves in the U loft. The software
chooses the location of the start points. Using