To position the object and its component parts, use the AnimOb structure
members AnX and AnY.  The following figure illustrates how each component
has its own offset from the AnimOb's common reference point.

     Figure 28-7: Specifying an AnimOb Position 

When you change the animation object's AnX and AnY, all of the component
parts will be redrawn relative to it the next time DrawGList() is called.