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Given a spatial object, calculate the UTM zone of the centroid

Source: R/utm_zone.R
utm_zone.Rd

For a line or polygon, the UTM zone of the centroid is given, after reprojecting the object into WGS-84.

Usage

utm_zone(x, y, proj4string = FALSE)

# S4 method for class 'numeric,numeric'
utm_zone(x, y, proj4string = FALSE)

# S4 method for class 'SpatVector,missing'
utm_zone(x, proj4string)

Arguments

x

a longitude (with western hemisphere longitudes negative), a Spatial object, or a SpatVector object

y

a latitude (with southern hemisphere latitudes negative), or missing (if x is a Spatial or SpatVector object)

proj4string

if FALSE (default) return the UTM zone as a string (for example "34S" for UTM Zone 34 South). If TRUE, return a proj4string using the EPSG code as an initialization string.

Value

character

Examples

utm_zone(45, 10)
#> [1] "38N"
utm_zone(45, -10)
#> [1] "38S"
utm_zone(45, 10, proj4string=TRUE)
#> [1] "+init=epsg:32638"