Extracted from Pike v7.8 release 866 at 2016-11-06.
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Geography
Geography.Position

Methods
 ECEF()
 GEOREF()
 RT38()
 UTM()
 UTM_offset()
 UTM_zone_designator()
 UTM_zone_number()
 __hash()
 _sprintf()
 `<()
 `==()
 `>()
 approx_height()
 create()
 eccentricity_squared()
 euclidian_distance()
 flattening()
 latitude()
 longitude()
 set_ellipsoid()
 set_from_RT38()
 set_from_UTM()
 standard_grid()
previousGeography.Position()->UTM_zone_designator()
Geography.Position()->__hash()next

Method Geography.Position()->UTM_zone_number()

Method UTM_zone_number

int UTM_zone_number()

Description

Returns the UTM zone number for the current longitude, with correction for the Svalbard deviations.