Apple Motion 2 Tutorials - Manual (Page 224)

224 Tutorial 5 The Replicator
To change the replicator shape and add more arms:
1 Choose Burst from the Shape pop-up menu.
The shape of the pattern changes to a Burst.
2 Set Number of Arms to 6.
The Burst pattern now has six arms, which are evenly spread over the 360 degrees of
the pattern. Now, change the character of the arms of the Burst by changing the Origin
parameter.
To change the Origin parameter of the replicator pattern:
m In the Inspector, choose Edge from the Origin pop-up menu.
Examine the objects on each arm of the burst. The outermost object on each arm has a
rotation of zero degrees, and the innermost object has a rotation of 50 degrees.
Aligning the angles with the arms of the burst provides rotational symmetry to the
pattern.