terra (version 0.5-2)

rotate: Rotate a SpatRaster along longitude

Description

Rotate a SpatRaster that has x coordinates (longitude) 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 SpatRaster
rotate(x, left=TRUE, filename="", overwrite=FALSE, wopt=list(), ...)

Arguments

x

Raster* object

left

logical. If TRUE, rotate to the left, else to the right

filename

character. Output filename. Optional

overwrite

logical. If TRUE, filename is overwritten

wopt

list. Options for writing files as in writeRaster

...

additional arguments. None implemented

Value

SpatRaster

Examples

# NOT RUN {
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)
# }