terra: ext – R documentation

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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)

Usage

## S4 method for signature 'SpatRaster'
ext(x)

## S4 method for signature 'numeric'
ext(x, ...)

## S4 replacement method for signature 'SpatRaster,SpatExtent'
ext(x)<-value

## S4 replacement method for signature 'SpatRaster,numeric'
ext(x)<-value

## S4 method for signature 'SpatExtent'
x$name

## S4 replacement method for signature 'SpatExtent'
x$name<-value

Arguments

`x`	SpatRaster
`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

Value

SpatExtent

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

terra

Spatial Data Analysis

v1.2-10

GPL (>= 3)

Authors

Robert J. Hijmans [cre, aut] (<https://orcid.org/0000-0001-5872-2872>), Roger Bivand [ctb] (<https://orcid.org/0000-0003-2392-6140>), Karl Forner [ctb], Jeroen Ooms [ctb] (<https://orcid.org/0000-0002-4035-0289>), Edzer Pebesma [ctb] (<https://orcid.org/0000-0001-8049-7069>)

Initial release

2021-05-12

ext