dd2utm: Decimal degrees to Universal Transverse Mercator
In peteraharrison/PUCA: Provenancing Using Climate Analogues

Description Usage Arguments Value Author(s) References Examples

A function to convert decimal degrees into universal transverse mercator coordinate system. This is an R implementation of the formulas provided by Prof. Steven Dutch.

1	dd2utm(id, long, lat, data)

`id`	The column number containing the identifier for each row. This 'identifier' may be the name of a population/provenance or could be a sequence of numbers
`long`	The column number containing the logitude decimal degree coordinates
`lat`	The column number containing the latitude decimal degree coordinates
`data`	The data frame containing the latitude/longitude coodinates. This can be of either class 'data.frame' or 'matrix'

An object of class 'data.frame' containing four columns:

id: The identifier from the original data file
north: The north UTM coordinate
east: The east UTM coordinate
zone: The zone which the latitudes originate. Zone ranges from 1 (180 to 147 W) to 60

P.A. Harrison

CFF Karney (2010) Transverse Mercator with an accuracy of a few nanometers, http://arxiv.org/abs/1002.1417v3

http://www.uwgb.edu/dutchs/UsefulData/UTMFormulas.HTM

# Create a data frame
tmp <- data.frame(id = "test", longitude = 147.4686, latitude = -42.008)

# Run function
PUCA::dd2utm(id = 1, long = 2, lat = 3, data = tmp)

# Output
#     id   north     east zone
# 1 test 5349229 538803.5   55