Apple Motion 2 - Manual (Page 241)

Chapter 3 Basic Compositing 241
m If the parameter has a graphical control, such as a slider or dial, you can adjust it.
m To reset a parameter to its default state, either click its reset button, or choose Reset
Parameter from the parameter’s Animation menu.
For more information on how to use the above controls, see “ Types of Controls ” on
page 98.
Parameters in the Properties Tab
The Properties tab displays the following parameters for most objects and layers:
Position: Defines the X (horizontal) and Y (vertical) position of each object.
The coordinate system used by Motion specifies the center of the Canvas as 0,0
regardless of the frame size of the project. Moving an object to the left subtracts from
the X value, while moving to the right adds to the X value. Similarly, moving an object
up adds to the Y value, and moving an object down subtracts from the Y value.
Note: This is identical to the coordinate system used by Final Cut Pro HD and Final Cut
Express HD, but different from that used by Shake, in which 0,0 defines the upper-left
corner of the compositional area.
Each object’s position is centered on its anchor point. Offsetting the anchor point also
offsets the position of the object relative to the X and Y position values you have set.
Rotation: Controls a one-dimensional value representing the number of degrees of
rotation. A positive value rotates the object counter-clockwise. A negative value rotates
the object clockwise.
Rotating an object beyond 360 degrees results in multiple rotations when the Rotation
parameter is animated.
Scale: Controls the percentage representing the object’s scale, relative to its original
size. By default, the horizontal and vertical scale of an object is locked together at the
object’s original aspect ratio—all of which is represented by a single percentage. Click
the disclosure triangle to display independent percentages for the X and Y scale of the
object.
Canvas center point
(0, 0)
-360 pixels +360 pixels
-240 pixels
+240 pixels
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