; grid_on.sfa - Thomas G. Ferguson, Abrams Planetarium, March 2002
; This file draws the standard grid.

0:00 buttons 2,6 play ./grid_off
     buttons 2,6 label 'Celest   Off'
     declare global celestial
     adjust celestial brightness 0
     draw precess celestial
     adjust celestial brightness 85 /until +2
     end