9
Trajec tories 301
You can als o click Add Ke ys in Track View to create
new Barycentric Morph keys. The added keys
contain interpolated values for all targets.
M otion Pa nel Comma nds
Traje c tori es
Select an object > Motion panel > Trajectories
Scooter following a trajectory
The Trajectories rollout displays the path an object
travels over time. Controls to convert splines
into trajectories, t r ajectories into splines, and to
collapse any transform controller in to editable
keys are also available by choosing Motion panel
>Trajectories.
Note: The state of the Trajectory check box under
Display in the Object Properties dialog (page
1–117) (and on the Display panel > Display
Properties rollout) controls whether trajectories
will be visible for an object.
Using trajectories, you can do the following:
• Insert and delete keys from the path.
• Move, rotate, and scale keys on the path.
• Convert the path to a spline object.
• Derive a new path from a spline object.
•Collapsetransforms.
Values under Sample Range are used in the Spline
Conversion and Collapse Transform functions.
Note: You c an now assign the four principal
Trajectories functions to keyboard shortcuts and
other custom UI items. The following new actions
are available via Customize User Interface (page
3–792):
• Trajectory Toggle: If one or more objects are
selected,thisentersandexitsTrajectoriesmode
on the Motion panel.
• Trajectory Key Mode Toggle: Enters and exits
the Keys sub-object level for direct editi ng
of animation keys via transformation of the
trajectory keys.
• Trajectory Add Key Mode Toggle: Enters and
exits Add Key mode.
• Trajectory Add Key Mode Toggle: Enters and
exits Delete Key mode.
Procedures
To display an object’s trajectory:
1.
Select an animated object that moves over time.
2. Right-click the object and choose Properties.
Trajectory is not available.
3. In the Display Properties group, click By Layer
to change this button to By Object. Skip this
step if By Object is already displayed.
Trajector y becomes avai lable.
4. Tu r n on Trajec tor y, the n click OK.
The Trajectory is displayed as a red line with
white squares and dots. The white s quares are
keys, the white dots are in-betweens.