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1158 Chapter 9: Sur face Modeling
keep the curve open or Yes to close the curve.
(You can also close a curve when you edit it
at the Curve sub-object level.) When a closed
curveisdisplayedattheCurvesub-objectlevel,
the initial point is displayed as a green circle,
and a green tick m ark indicates the curve’s
direction.
Inter face
Point Curve rollout (creation time)
Draw I n A ll Viewports —Lets you use any viewpor t
whileyouaredrawingthecurve.Thisisoneway
to create a 3D curve. When off, you must finish
drawing the curve in the view port where you
began it. Default=on.
WhileDrawInAllViewportsison,youcanalso
use
snaps (page 2–38) in any viewport.
Point Curve rollout (modification tim e)
Clo se—Closesthecurve.Disabledifthecurveis
already closed.
Curve Fit
Select NURBS object. > Modify panel > C reate Curve s
rollout > Dependent Cur ves group box > Curve Fit button
Select NURBS o bjec t. > Modify panel > N URBS toolbox
> Create Fit Curve button
Fitting a cur ve to selected points
This command creates a point curve fitted to
points you select. The p oints can be part of
previously created point curve and point surface
objects, or they can be point sub-objects you
created explicitly. They can’t be CVs.
Procedure
To create a point curve with Curve Fit:
1.
Turn on Cur ve Fit.
2. Click to select two or more points.
Apointcurveiscreated.Itrunsthroughthe
points you select, in the order you select them.
You can use BACKSPACE to undo point
selection in reverse order.
3. Rig ht-click to end creation.
Interf ace
There are no parameters for a point curve created
with Curve Fit.