8

Editing Curve CV Sub-Objects 1129
The Selection group b ox, described under
"Interface" later in this topic, provides some
additional options for selecting CV sub-objects.
2. Turn on Move or another transform and then
drag in a viewport to transform the selection.
Theshapeofthemodelchangesasyou
interactively transform the CVs.
Rotate and Scale are usef ul only when you’ve
selected multiple CVs.
Tips
•
The Lock Select ion Set button is u seful
when you transform NURBS CV sub-objects.
You can make a selection in one viewport, click
Lock Selection S et (or press the SPACEBAR),
andthentransformtheselectioninadifferent
viewport.
• When you move CV sub-objects, move them as
systematically as possible to avoid "getti ng lost."
TousethekeyboardtoselectcurveCVsub-objects:
Yo u c a n s e l e c t c u r v e C V s u b - o b j e c t s u s i n g t h e
CTRL key and the arrow keys. The arrows traverse
the sub-objects in the order they were created. To
do so, follow these steps:
1. Tu r n on th e Ke y bo ard Sh or tcut
Override Toggle.
2. Click or drag to select CVs.
3. Hold down CTRL and use the arrow keys to
move among the CV sub- objec t s.
For CVs on curves, the arrow keys traverse the
CV selection along the length of the curve.
The arrow keys don’t move between curve
sub-objects.
You can also use the H keyboard shortcut (while
the Keyboard Shortcut Override Toggle button is
on)todisplayadialogandselectCVsbyname.
CTRL+H displays only the names of CVs directly
beneath the mouse cursor.
To remove a CV from a curve:
1.
Select a CV.
2. Click Delete.
Keyboard shortcut: DEL
The CV is deleted and the shape of the curve
is updated.
Note: ACVcurvemusthaveatleastonemore
CV than the
degree (page 3–1021) of the curve.
To add a CV to a curve:
1.
Tur n on Ref in e.
2. C l ick the curve where you want to add the CV.
A CV is added at the location you clicked.
Neighboring CVs move away from the new CV
in order to preserve the original curvature.
ToaddCVsandextendthelengthofacurve:
1.
ClicktoturnonExtend.
2. MovethemouseoveraCVcurve.Thecurveis
highlighted in blue, and one of the curve’s ends
displays a box to show where the curve will be
extended.
3. Drag from the hig hlighted end CV, and then
release the mouse button.
New CVs are added beyond the original length
of the curve.
To fuse two CVs:
1.
Tur n on Fu se .
2. Click a CV without releasing the mouse button.
Drag to another CV, and then release the mouse
button.
ThefirstCVyouchooseacquirestheposition
of the second CV, and becomes dependent to it.
If the first CV has an animation controller, the
controller is discarded. If the second CV has