terra (version 1.0-10)

flip: Flip or reverse a raster

Description

Flip the values of a SpatRaster by inverting the order of the rows (vertical=TRUE) or the columns (vertical=FALSE).

rev is the same as a horizontal *and* a vertical flip.

Usage

# S4 method for SpatRaster
flip(x, direction="vertical", filename="", overwrite=FALSE, wopt=list(), ...)
# S4 method for SpatVector
flip(x, direction="vertical", ...)
# S4 method for SpatRaster
rev(x)

Arguments

x

SpatRaster or SpatVector

direction

character. Should (partially) match "vertical" to flip by rows, or "horizontal" to flip by columns

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

See Also

transpose, rotate

Examples

# NOT RUN {
r <- rast(nrow=18, ncol=36)
m <- matrix(1:ncell(r), nrow=18)
values(r) <- as.vector(t(m))
rx <- flip(r, direction="h")

values(r) <- as.vector(m)
ry <- flip(r, direction="v")

v <- rev(r)
# }