Adobe AFTER EFFECTS CS3 PROFESSIONAL User Manual page 349

A B C D
E
H
Track point components and Selection tool pointer icons
A. Search region B. Feature region C. Keyframe marker D. Attach point E. Moves search region F. Moves both regions G. Moves entire track
point H. Moves attach point I. Moves entire track point J. Resizes region
• To turn on or off feature region magnification, choose Magnify Feature When Dragging from the Tracker
Controls panel menu.
• To move the feature region, search region, and attach point together, drag inside the track point area (avoiding the
region edges and the attach point), or press the Up, Down, Left, or Right Arrow key. Hold Shift while pressing an
arrow key to move by an increment 10 times as large.
• To move only the feature and search regions together, drag the edge of the feature region, or Alt-drag (Windows)
or Option-drag (Mac OS) with the Selection tool inside the feature or search region. You can also hold Alt
(Windows) or Option (Mac OS) while pressing the Up, Down, Left, or Right Arrow key. Hold Alt+Shift
(Windows) or Option+Shift (Mac OS) while pressing an arrow key to move by an increment 10 times as large.
• To move only the search region, drag the edge of the search region.
Offset the search region center from the feature region center in the direction in which the tracked feature is traveling.
• To move only the attach point, drag the attach point.
• To resize the feature or search region, drag a corner handle.
• To make all of the region's sides match the length of the longest side, and to resize the region relative to the original
region's center point, Shift-drag a corner handle.
• To make all of the region's sides match the length of the longest side, and to resize the region relative to a particular
corner handle, Ctrl+Shift-drag (Windows) or Command+Shift-drag (Mac (OS) the opposite corner handle.
To restrict the movement of the track point to the x (horizontal) or y (vertical) axis during tracking, resize the height
or width of the search region to match the height or width of the feature region.
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AFTER EFFECTS CS3 343
User Guide