; aagrid_on.sfa - John French, Abrams Planetarium,  2003
; This file draws the Alt Azi grid.

0:00 buttons 12,7 play ./aagrid_off
     buttons 12,7 label 'AltAzi   Off'
     declare global aagrid
     adj aagrid def pic /dsuser/french/demoabrams03/altazigrid
     adjust aagrid brightness 0
     draw ob aagrid
     adjust aagrid brightness 85 /until +2
     end