rnrfa (version 0.3.0)

OSG2LatLon: Converts easting/northing to latitude/longitude.

Description

This function converts easting and northing coordinates (UK National Grid, epsg:27700) and converts them to longitute and latitude (WGS84, epsg:4326). It uses rgadal and sp functionalities for coordinates transformations.

Usage

OSG2LatLon(en)

Arguments

en

this is a vector containing the easting and northing coordinates.

Value

• vector made of two elements: the latitude and longitude.

References

This function is based on the following forum post: https://stat.ethz.ch/pipermail/r-sig-geo/2010-November/010141.htm

Examples

# single entry
OSG2LatLon(c(572200,121300))

# use result from OSGParse() function
OSG2LatLon(OSGParse("TQ722213"))

# multiple entries & use result from OSGParse() function
OSG2LatLon(OSGParse(c("SN831869","SN829838","SN824853","SN824842","SN826854")))