utm

Bidirectional UTM-WGS84 converter for JavaScript.

Translated directly from Tobias Bieniek's implementation in Python.

Usage

var utm = require('utm')

utm.toLatLon(easting, northing, zoneNum, zoneLetter, northern, strict = true)

Convert from UTM-WGS84 to latitude/longitude coordinates. One and only one of zoneLetter and northern must be specified. strict option specifies whether easting and northing are checked against their respective ranges.

Returns { latitude, longitude }.

utm.fromLatLon(latitude, longitude[, zoneNum])

Convert from latitude/longitude coordinates to UTM-WGS84. zoneNum can be set to force a specific zone number.

Returns { easting, northing, zoneNum, zoneLetter }.

Change log

1.1.1 - 2017-06-27

Fixed

• Fix UTM zone number longitude boundaries (fixes Turbo87/utm#19)

1.1.0 - 2016-11-07

Added

• An option to disable range checking of easting and northing

Fixed

• Fix case when northern is false (fixes #3; thanks go to @perhallstroem)

1.0.1 - 2016-07-01

Fixed

• Fix northern never getting set (fixes #1; thanks go to @danielsiwiec)

1.0.0 - 2015-10-25

Added

• Initial release