9

1220 Chapter 9: Surface Modeling
2.
On the Modify > Create Points rollout, turn on
Offset Point.
3. Inaviewport,clickanexistingpoint.
4. In the Modify > Offset Points rollout, use the
Offset spinners to adjust the point’s position
relative to the original point.
Inter face
While an offset point sub-object is selected, the
Offset Point rollout appears.
At Point—When chosen, the dependent point has
thesamelocationastheoriginal,parentpoint.
Offset—Enables p oint offset. Use the X,Y,Z Offset
spinners to set offset va lues (in object space
coordinates).
Replace B ase Point—(Only at modification time.)
Lets you replace the parent point. Click the button,
then click the new point on which to base the offset
point.
Curve Po in t
SelectNURBSobject. >Modifypanel>CreatePoints
rollout>DependentPointsgroupbox>CurvePoint
button
Select NURBS object. > Modify panel > NURBS toolbox >
Create Curve Point button
This command creates a dependent point that lies
on a curve or relative to it.
Thepointcanbeeitheronthecurveoroffthe
curve. If it is on the curve, the U Position is
the only control of its location. The U Position
specifies a location along the curve (based on
thecurve’slocalUaxis). Therearethreeways
to displace the point’s location relative to the U
position.
Procedure
To creat e a dependent cur ve point :
1.
Turn on Curve Point and then click along a
curve to position t he point.
2. T he cur ve and cursor position are hig hlighted
during this operation.
3. At the Point sub-object level, adjust the point’s
position relative to the curve by adjusting the
curve point parameters on the Curve Point
rollout.