Convert Longitude and Latitude to UTM

Convert Longitude and Latitude to UTM

Usage

lonlat2utm(longitude, latitude, zone, km = FALSE)

Arguments

longitude

numeric vector of decimal longitude. May also be a list containing items named longitude and latitude, in which case the indicated values are used, and next argument is ignored.

latitude

numeric vector of decimal latitude (ignored if longitude is a list containing both coordinates)

zone

optional indication of UTM zone. Normally this is inferred from the longitude, but specifying it can be helpful in dealing with Landsat images, which may cross zones and which therefore are described by a single zone.

km

logical value indicating whether easting and northing are in kilometers or meters.

Value

lonlat2utm returns a list containing easting, northing, zone and hemisphere.

References

https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system, downloaded May 31, 2014.

See also

utm2lonlat() does the inverse operation. For general projections and their inverses, use lonlat2map() and map2lonlat().

Other functions related to maps: formatPosition(), lonlat2map(), map2lonlat(), mapArrows(), mapAxis(), mapContour(), mapCoordinateSystem(), mapDirectionField(), mapGrid(), mapImage(), mapLines(), mapLocator(), mapLongitudeLatitudeXY(), mapPlot(), mapPoints(), mapPolygon(), mapScalebar(), mapText(), mapTissot(), oceCRS(), oceProject(), shiftLongitude(), usrLonLat(), utm2lonlat()

Author

Dan Kelley

Examples

library(oce)
# Cape Split, in the Minas Basin of the Bay of Fundy
lonlat2utm(-64.496567, 45.334626)
#> $easting
#> [1] 382736.4
#> 
#> $northing
#> [1] 5021214
#> 
#> $zone
#> [1] 20
#> 
#> $hemisphere
#> [1] "N"
#>