Apple Motion 5.1.1 User Manual
Page 320
Chapter 9
Behaviors
320
Note: The Path Shape parameters work similarly to text on a path. For more information about
working with text on a path, see
on page 660.
•
Shape Type: A pop-up menu, available when Path Shape is set to Open Spline or Closed Spline,
that sets how the path is manipulated, via Bezier or B-Spline control points.
•
Bezier: Lets you manipulate the path manually by dragging Bezier handles.
Note: For more information about creating and adjusting Bezier curves, see
on page 850.
•
B-Spline: Lets you manipulate the path by dragging B-Spline control points. The points
themselves do not lie on the surface of the shape. Instead, each B-Spline control point is
offset from the shape’s surface, magnetically pulling that section of the shape toward itself
to create a curve. B-Splines are extremely smooth—by default, there are no sharp angles in
B-Spline shapes, although you can create sharper curves, if necessary.
Note: For more information about working with B-Spline curves, see
on page 852.
•
Radius: A slider, available when Circle is the defined path shape, that sets the size of the
circular path. Click the disclosure triangle to adjust the X radius and Y radius independently.
Note: When the Motion Path behavior is selected, you can also drag the onscreen control
points to resize the circle. Press Shift while dragging to resize the X and Y radii uniformly.
•
Size: A slider, available when Rectangle is the defined path shape, that modifies the size of the
rectangular path. Click the disclosure triangle to adjust the X scale and Y scale independently.
Note: When the Motion Path behavior is selected, you can also drag the onscreen control
points to resize the rectangle. Press Shift while dragging to resize the X and Y scales uniformly.
•
Offset: A slider, available when Circle, Rectangle, or Geometry is the defined path shape, that
sets where the object starts moving on the path.
•
End Point: Value sliders, available when Wave is the defined path shape, that sets the location
of two default points on the wave’s path. The end points can also be adjusted using the wave’s
onscreen controls (active by default when the Motion Path behavior is selected). Moving
the left end point moves the entire path; moving the right end point lengthens, shortens, or
angles the path.
•
Amplitude: A slider, available when Wave is the defined path shape, that defines half the
distance from the highest point to the lowest point in the wave. Higher values result in more
extreme waves.
•
Frequency: A slider, available when Wave is the defined path shape, that sets the number of
waves. Higher values result in more waves.
•
Phase: A dial, available when Wave is the defined path shape, that defines the degrees of the
offset of the waves from the start and end points of the path. When Phase is set to 0 degrees
(default), the wave begins and ends at half the distance from the highest point to the lowest
point in the wave. When Phase is set to 90 degrees, the wave begins and ends at the highest
point in the wave. When set to –90 degrees, the wave begins at the lowest point in the wave.
When set to 180 degrees, the waves are the same as 0 degrees, but inverted.
67% resize factor