eaarl.util.utm

Conversion to/from UTM

eaarl.util.utm.from_latlon(latitude, longitude, force_zone_number=None)

Converts geographic coordinates to UTM coordinates

Parameters

latitude : array-like of float

Latitude coordinate values

longitude : array-like of float

Longitude coordinate values

force_zone_number : integer or None

Forces the coordinates to the given UTM zone. If omitted, then points are converted to their native UTM zones.

Returns : (array, array, array, array)

Returns (easting, northing, zone_number, zone_letter) where each are arrays.

eaarl.util.utm.to_latlon(easting, northing, zone_number, zone_letter=None, northern=None)

Converts UTM coordinates to geographic coordinates

Parameters

easting : array-like of floats

Easting of the coordinates.

northing : array-like of floats

Northern of the coordinates.

zone_number : integer or array-like of integers

Zone of the coordinates.

zone_letter : string or array-like of string or None

Specifies the zone letters. This is used to determine whether the coordinates are in the northern or southern hemisphere. If omitted, then northern is used.

northern : Boolean or array-like of Booleans or None

Indicates whether coordinates are in the southern (False) or northern (True) hemisphere. Default is None, which is treated as True. Ignored if zone_letter specified.

Returns : (array, array)

Returns (latitude, longitude) where each are arrays.