9

446 Chapter 6: Transforms: Moving, Rotating, and Scaling Objec ts
The Use Center flyout provides access to three
methods you can use to determine the geometric
center for scale and rotate operations. They are,
from top to bottom:
Use Pivot Point Center (page 1–446)
Use Selection Center (page 1–447)
Use Transform Coordinate Center (page 1–447)
See also
Choosing a Transform Center (page 1–435)
Use Pivot Point Center
Main toolbar > Use Pivot Point Center ( on Use Center
flyout)
The U se Pivot Point Center option, available
from the Use Center flyout (page 1–445),letsyou
enable rotation or scaling of one or more objects
around their respective pivot points (page 3–995).
When Auto Key (page 3–717) is active, Use Pivot
Point Center is automatically chosen and no other
option is available.
The axis tripods (page 1–424) show the centers that
are currently being used.
Note: Thetransformationcentermodeisseton
a transform-by-transform basis, so select the
transform before you select the center mode. If
you do not want the center setting to cha nge, turn
on Customize menu > Preferences > General tab >
Reference Coordinate System group > Constant.
Applying a rotation with the Pivot Point rotates each object
around its own local ax is.
R otating M ultiple Link ed Objects
When rotating a chain of linked (page 2–421)
objects (that is, a hierarchy) with Use Pivot Point
Center active, the rotation is applied equally
to each object in the chain. This results in a
accumulated rotations, which mak es it easy to
animate such effects as fingers curling.
Hierarchy before rotation
(parentatbottom)
Hierarchy rotated