Hi
What is the difference between long/lat and long/lat nad 83 ? Why on a map window, in some situation I cant switch to long/lat from long/lat nad 83 ? (when I return in map projection setting its still the 83 one selected) If I do some mapbasic calculation on table object coords, and my session projection is 1,33 and data are 1,0 does it will involve extra transform calculations (underground) ? Antoine
