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1136 Chapter 9: Surface Modeling
The Make Point Curve (page 1–1235) dialog is
displayed. This dialog asks how m any points
the new point curve should have.
2. Change the number of points, and then click
OK.
Reducing the number of points can change the
shape of the curve.
If the selected cur ve is already a point cur ve, you
can use Make Fit to change the number of points
it has.
To select a f irst vertex on the cur ve:
• Select the curve sub-object, turn on Make First,
andthenclickalocationonthecurve.
If the curve is closed and there is a ver tex where
you click, this vertex becomes the first vertex. If
the curve is closed and there is no vertex where
you click, a new vertex is created at the location
you click. It becomes the new first vertex, and
the curve’s p oints or CVs adapt to maintain the
cur vature.
If the curve is open, clicking it has no effect.
Wa rning: Using Make First discards any animation
controllers for the points or CVs in the curve.
Ifthecurveisopen,thefirstvertexmustbeone
of the endpoints (by default, it is the first you
created). The Mak e First button has no effect,
butyoucanuseReversetochangethecurve’s
direction.
The small ci rc le indicates the first vertex.
To tur n a curve that lies on a sur face into a Point
Curve on Surface:
1.
Select the curve sub-object, and then click
Make COS.
Make COS is unavailable unless the curve
already lies on a surface; for example, it is a U
Iso curve.
2. The Convert Curve on Surface dialog (page
1–1226) is displayed.
Choose CV Curve on Surface to create a CV
curve, or Point Curve on Surface to create a
point c urve. The Number of CVs or Number of
Points values let you specify the complexity and
accuracy of the new curve on surface. If Preview
is on, the new curve is previewed in viewports.
This can help you choose the number.