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364 Chapter 5: Creating Geometry
produce a sharp corner. This type produces a
curvethatlookslikethecornertypebuthas
control handles like the Bezier Smooth type.
•
B ezier Smooth—Adjustable Bezier control point
with locked continuous tangent handles set to
produce a smooth curve.
Selecting Control Points
U se the Move Control Point and Scale Control
Point buttons with standard selection techniques
to select control points.
Pr ocedur es
To dra g B ez ier ta ngent ha ndles :
1.
SelectoneormoreBezierSmoothorBezier
Corner control points to display their tangent
handles.
2. Click one of the Move Control Point buttons.
3. Drag any tangent handle.
• Only the tangent handle you drag is affected.
Tangent handles on other selected control
points do not change.
• If t he tangent handle you drag is part of a
Bezier Smooth control point, both handles
move to maintain the B ezier Smooth type.
• If the tangent handle you drag is part of
a Bezier Corner control point, only that
handle moves.
To move a control point usi ng the Position and
Amount fields:
1.
Select a single control point.
2. Do one of the follow ing:
• Move the control point horizontally by
entering a value in the Position field.
• Move the control point vertically by entering
a value in the Amount field.
To change the control point type:
You can change cont rol point types at any time by
right-clicking a selection of one or more control
points.
1. Selectoneormorecontrolpoints.
2. Right-click any selected control point.
3. Choose a control point type from the shortcut
menu.
The following conditions apply to changing
control point types:
• The first and last control points must use the
Corner or Bezier Corner t ype.
•ConvertingaBezierSmoothpointtoa
Bezier Corner point unlocks the tangent
handles but does not change their position.
The curve appears smooth until you drag
one of the tangent handles.
• Converting a Bezier Corner point or inserted
Bezier point to Bezier Smooth locks the
tangent handles and changes their position
and magnitude. The hand les are rotated to
the average between their two a ngles. The
handle magnitudes are averaged and set
equal.
Interf ace
Toolbar
Buttons for working with a second curve are
disabled for the Twist and Bevel deformations,
which use only one curve. The disabled buttons