Function UtmCoordinate.zone

UTM zone.

UtmZone zone() const pure nothrow @nogc @property @safe;

Example

Example reading the zone. 

import geodesy;
const coordinate = UtmCoordinate!double.fromComponents(
    UtmZone.fromNumber(33), UtmHemisphere.north,
    500_000.0, 5_340_000.0);
assert(coordinate.zone.number == 33);