Apple Motion 3 - Manual (Page 1020)

1020 Chapter 12 Using Shapes and Masks
To select a specific control point (based on the order the shape is drawn):
m Click any control point to display its control point number.
Note: All shape control points are also listed by number in the Geometry tab of the
Shape Inspector.
Moving Control Points to Adjust a Shape
Because the control points define the shape, simply move control points to change the
shape.
To move one or more control points:
m Select one or more points, then drag them to a new position.
As you drag one or more selected control points, the rest of the shape automatically
stretches or curves to accommodate the change.
To constrain the movement of selected points horizontally and vertically:
1 Select one or more control points.
2 Press Shift while you drag one of the selected points either horizontally or vertically.
Important: Selected control points can only be moved—you cannot rotate, shear, or
corner-pin them.
Adding and Deleting Control Points
If you did not create enough control points to make the shape you need, you can add
more to the existing shape. You can also extend or close an open shape.
To add control points to a selected shape:
1 Select the Adjust Control Points tool.
2 Do one of the following:
 Double-click or Option-click the edge of a shape to add a new control point.
Note: To add control points to a B-Spline shape, double-click or Option-click the B-
Spline frame’s edge, rather than the edge of the shape itself.
Selecting three points Moving all three points simultaneously