gridCoords: Get x,y coordinates from a grid reference

In rnbn: Access NBN Data

Description

Given an OSGB or OSNI grid reference string, get the x,y coordinates of the OSGB or OSNI grid for the bottom, left-hand corner of the grid square. The units parameter controls the units (metres m or kilometres km) in which the coordinates should be returned.

Usage

gridCoords(grid = NULL, units = c("km", "m"))

Arguments

grid	an OSGB or OSNI grid reference string
units	metres or kilometres (default)

Value

a list of class "gridref" with the following contents:

grid	the original grid reference
system	the grid reference system, either "OSGB" or "OSNI"
x	the x coordinate (easting) in requested units
y	the y coordinate (northing)in requested units
units	"m" or "km"
precision	the prcision of the original grid reference in metres

Author(s)

Stuart Ball, JNCC [e-mail]

See Also

gridRef

Examples

gridCoords("NZ1265") # returns x=412, y=565 (in km)
gridCoords("NZ123654", units="m") # returns x=412300, y=565400 (in m)

rnbn documentation built on April 6, 2017, 6:29 a.m.