Constraining the Rotation of Objects

To rotate an object with degree of rotation constrained:

1.  Select the object.

2.  Position the pointer over the handle extending from the center of the object and press the Option key or the Shift key. The pointer will change its shape to the curved arrow with the angle symbol inside.

3.  If you hold the Option key and drag the rotate handle, your object is rotated to the nearest angle (depending on the rotation direction) divisible by 15 degrees. If you hold the Shift key instead of the Option key, your object is rotated to the nearest angle divisible by 45 degrees.