terra: rotate – R documentation

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rotate

Rotate a SpatRaster along longitude

Description

Rotate a SpatRaster that has longitude coordinates from 0 to 360, to standard coordinates between -180 and 180 degrees (or vice-versa). Longitude between 0 and 360 is frequently used in global climate models.

Usage

## S4 method for signature 'SpatRaster'
rotate(x, left=TRUE, filename="", ...)

Arguments

`x`	SpatRaster or SpatVector
`left`	logical. If `TRUE`, rotate to the left, else to the right
`filename`	character. Output filename
`...`	additional arguments for writing files as in `writeRaster`

Value

SpatRaster

Examples

x <- rast(nrow=9, ncol=18, nl=3, xmin=0, xmax=360)
v <- rep(as.vector(t(matrix(1:ncell(x), nrow=9, ncol=18))), 3)
values(x) <- v
z <- rotate(x)

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