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1-Rail Sweep Surface 1209
1-Rail Sweep Surface rollout (m odification time)
Rail Curve—Shows the name of the curve you chose
to be the rail.
Replace R ail—Lets you replace the r ail curve. C lick
this button, then in a viewport click the curve to
use as the new rail.
Section Cur ves—Thislistshowsthenamesofthe
cross-section curves, in the order you click them.
You can selec t a curve by clicking its name in the
list. Viewports display the selec ted curve in blue.
Arrow Buttons—Usethesetochangetheorderof
sect ion curves in the list. Select a curve in the list,
andthenusethearrowstomovetheselectionup
or down.
Curve Properties group
These controls affect individual c urves you select
in the Section Curves list, as opposed to properties
of the sweep surface in general. They are enabled
onlywhenyouhaveselectedacurveintheSection
Curves list.
Reverse—When set, reverses the direction of the
selected curve.
Start Point—Adjusts the position of the curve’s
start point. This can help eliminate unwanted
tw ists or "buckles" in the surface.
This control is disabled if the curve is not a closed
curve.
While you’re 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.
Insert—Adds a curve to the sec tion list. Click to
turn on Insert, then click the cur ve. The curve
is inserted
before the selected curve. To insert a
curveattheend,firsthighlightthe"----End-----"
marker in the list.
Remove—Removes a curve from the list. Select the
curve in the list, and then click Remove.
Refine—Refines the 1-rail sweep surface. Click
to turn on Refine, then click an iso curve on the
surface. (As you drag the mouse over the surface,
the available section curves are highlighted.) The
curve you click is converted to a CV curve and
inserted into the sweep and the section list. As
when you refine a point curve, refining a sweep
can change t he cur v ature of the surface slightly.
Once you’ve refined the surface by adding a
cross-section c urve, you can use Edit Curves to
change the curve.
Replace—Lets you replace the selected curve.
Select a curve in the list, click this button, and then
select the new curve.