Apple Final Cut Pro 7 - Manual (Page 1088)

• To constrain the rectangle’s aspect ratio: Hold down the Shift key while dragging a corner.
Shift-drag a corner with
the Crop tool to maintain
the aspect ratio.
Example: Using Motion Parameters and Wireframe Handles
In this example, you’ll put a graphic on the side of a building as if it were a sign. You’ll
use the Scale, Center, and Distort parameters (in the Motion tab of the Viewer) to match
the perspective of the building with the perspective of the sign, and the Selection and
Distort tools to manipulate the graphic directly in the Canvas. This example assumes
you’ve already created a new sequence and opened it in the Timeline.
Note: This example uses a sequence created for DV clips, with a frame size of 720 x 480.
To use the Scale, Center, and Distort parameters to match perspective
1 Edit a shot of a building into track V1 of your sequence.
The clip shown here
is a locked-down shot
of a building from a
three-quarter angle
(a locked-down shot is
one where the camera
does not move).
1088 Chapter 66 Changing Motion Parameters