osg_parse: Converts OS Grid Reference to BNG/WGS coordinates.
In rnrfa: UK National River Flow Archive Data from R

osg_parse

R Documentation

Converts OS Grid Reference to BNG/WGS coordinates.

Description

This function converts an Ordnance Survey (OS) grid reference to easting/northing or latitude/longitude coordinates.

Usage

osg_parse(grid_refs, coord_system = c("BNG", "WGS84"))

Arguments

`grid_refs`	This is a string (or a character vector) that contains the OS grid Reference.
`coord_system`	By default, this is "BNG" which stands for British National Grids. The other option is to set coord_system = "WGS84", which returns latitude/longitude coordinates (more info can be found here https://www.epsg-registry.org/).

Value

vector made of two elements: the easting and northing (by default) or latitude and longitude coordinates.

Author(s)

Claudia Vitolo (Ilaria Prosdocimi ported to sf)

Examples

## Not run: 
  # single entry
  osg_parse(grid_refs = "TQ722213")

  # multiple entries
  osg_parse(grid_refs = c("SN831869","SN829838"))

  # multiple entries with missing values, NA will be returned
  osg_parse(grid_refs = c("SN831869",NA, "SN829838", NA))

## End(Not run)

rnrfa documentation built on Sept. 8, 2022, 5:07 p.m.