terra (version 1.0-10)

cover: Replace values with values from another object

Description

Replace NA or other values in SpatRaster x with the values of SpatRaster y

For polygons: areas of x that overlap with y are replaced by y or, if identity=TRUE intersected with y.

Usage

# S4 method for SpatRaster,SpatRaster
cover(x, y, values=NA, filename="", overwrite=FALSE, wopt=list(), ...)
# S4 method for SpatVector,SpatVector
cover(x, y, identity=FALSE, ...)

Arguments

x

SpatRaster

y

SpatRaster

values

numeric. The cell values in x to be replaced by the values in y

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

identity

logical. If TRUE overlapping areas are intersected rather than replaced

Value

SpatRaster

Examples

# NOT RUN {
r1 <- r2 <- rast(ncols=36, nrows=18)
values(r1) <- 1:ncell(r1)
values(r2) <- runif(ncell(r2))
r2 <- classify(r2, cbind(-Inf, 0.5, NA))
r3 <- cover(r2, r1)


p <- vect(system.file("ex/lux.shp", package="terra"))
e <- as.polygons(ext(6, 6.4, 49.75, 50))
values(e) <- data.frame(y=10)
cv <- cover(p, e)
#ci <- cover(p, e, identity=TRUE)
# }