The GeometryUpdater interface is used in updating geometry data
that is accessed by reference from a live or compiled GeometryArray
object. Applications that wish to modify such data must define a
class that implements this interface. An instance of that class is
then passed to the updateData method of the
GeometryArray object to be modified.
Updates geometry data that is accessed by reference.
This method is called by the updateData method of a
GeometryArray object to effect
safe updates to vertex data that
is referenced by that object. Applications that wish to modify
such data must implement this method and perform all updates
NOTE: Applications should not call this method directly.