terra (version 1.7-55)

as.lines: Conversion to a SpatVector of lines

Description

Conversion of a SpatRaster, SpatVector or SpatExtent to a SpatVector of lines.

Usage

# S4 method for SpatRaster
as.lines(x)
# S4 method for SpatVector
as.lines(x)
# S4 method for SpatExtent
as.lines(x, crs="")

Value

SpatVector

Arguments

x

SpatRaster, SpatVector or SpatExtent

crs

character. The coordinate reference system (see crs)

See Also

as.lines, as.polygons

Examples

r <- rast(ncols=2, nrows=2)
values(r) <- 1:ncell(r)

as.lines(r)

as.lines(ext(r), crs=crs(r))

if  (gdal() >= "3.0.0") {
	p <- as.polygons(r)
	as.lines(p)
}