As far as I can tell the cmpter wil do what Im going to have to do with my calculator: if lightA is at -2, 2, -1, when the gas station is at 0,0,0, then when I move the building to -10, 10, -5 add those coordinates to the original light position. An awful lot of work considering that there are 12 lights for the station, not to mention the streelights and cars and other buildings int he town.