get_utm_zone()
replaces convert_long_2_utm()
as this
function name is more descriptive. get_utm_zone()
takes a longitude
coordinate and returns the corresponding UTM zone.
get_utm_zone(lon)
The function returns a numeric UTM zone (between 1 and 60).
Input a longitude (decimal degree) coordinate and this simple function returns the number of the UTM zone where that point falls.