terra (version 1.6-17)

ext: Create, get or set a SpatExtent

Description

Get a SpatExtent of a SpatRaster, or coordinates from such an object. Or create a SpatExtent from a vector (length=4; order= xmin, xmax, ymin, ymax)

See set.ext to set the extent in place.

Usage

# S4 method for SpatRaster
ext(x, cells=NULL)
# S4 method for SpatVector
ext(x)
# S4 method for numeric
ext(x, ...)
# S4 method for SpatRaster,SpatExtent
ext(x)<-value
# S4 method for SpatRaster,numeric
ext(x)<-value
# S4 method for SpatExtent
$(x, name)
# S4 method for SpatExtent
$(x, name)<-value

Value

A SpatExtent object.

Arguments

x

SpatRaster

cells

postive integer (cell) numbers to subset the extent to area covered by these cells

value

SpatExtent, or numeric vector of lenght four (xmin, xmax, ymin, ymax), or a single number with the $ method

name

charcter, one of xmin, xmax, ymin, or ymax

...

if x is a single numeric value, additional numeric values for xmax, ymin, and ymax

Examples

r <- rast()
e <- ext(r)
as.vector(e)
as.character(e)

ext(r) <- c(0, 2.5, 0, 1.5)
r
er <- ext(r)

round(er)
# go "in"
floor(er)
# go "out"
ceiling(er)

ext(r) <- e