1-D snap/rotate to predefined angles   

The default Angle formula, (Shape Transform section ), for a 1-D is shape is 
=ATAN2(EndY-BeginY,EndX-BeginX).  Does anyone know of a slick way to 
restrict this to 0, 30, 60, 90 degrees or say 0,45,90?  In effect having the 
shape snap into place at preset angles.

date: Wed, 30 Nov 2005 14:45:30 -0700   author:   Mark D.