8

752 Chapter 21: User Interface
onlythetransformkeymustmove,displaythe
Transform Properties dialog and use the Time
parameter to move the transform key.
1. Right-clickakeyonthetrackbarandchoosea
key on the pop-up window key list.
A Key Properties dialog is displayed.
2. Change the Time parameter in the Key
Properties dialog.
The key slides a long the track bar to a new
location.
To delete k eys on the tra ck bar:
1.
Makeakeyselectiononthetrackbarandpress
DELETE.
All selected keys are deleted.
2. Makeakeyselectiononthetrackbar,
right-click anywhere on the track bar to display
the track bar menu, and then choose Delete
Selected Keys on the pop-up window.
All selected keys are deleted.
To delete a single k ey type on a f rame with multiple
keys:
An object can have many keys for different
animated parameters at a particular frame.
Use this procedure to delete a key for a single
parameter.
1. Right-click over a selec ted or unselected key
on the track bar.
Apop-upwindowdisplays.
2. Move the mouse over Delete Key, then choose a
key to delete in the submenu.
To change the length of the active time s egment:
You can change the a nim ation length using tr ack
bar.
• Hold C TRL+A LT and drag on the track bar:
•
With the left mouse button to change the
active time segment’s start frame.
•
With the right mouse button to change the
active time segment end frame.
•
With the center mouse button to change the
active time segment start and end frames
simultaneously.
To hide or show the track bar:
•ChooseCustomize>ShowUI>ShowTrack
Bar.
This menu item is a toggle: a check mark shows
that the tr ack bar is cur rently displayed.
To sho w curves on the track bar:
• Click the Open Mini Curve Editor button
at the left hand side of the track bar.
The track bar keys are replaced with a menu bar ,
toolbars and the cont roller and key window s.
Interfa ce
Track Bar
• Make an object select ion in the viewpor ts to
display the object’s keys on the t rack bar.
• Selected transformation keys are white;
unselected keys a
re other colors.
•Dragfromanempty
area of the track bar to
region-select keys.
•Dragakeytomoveitintime.
•HoldSHIFTanddragakeytocloneit.
• Hold C TRL+ALT and drag the track bar to
changetheactivetimesegment,thatis,the
animation range
displayed on the track bar.
Dragging with th
e left mouse button will
change the start of the range, dragging with the