terra (version 1.8-5)

atan2: Two argument arc-tangent

Description

For SpatRasters x and y, atan2(y, x) returns the angle in radians for the tangent y/x, handling the case when x is zero. See Trig

See Math-methods for other trigonometric and mathematical functions that can be used with SpatRasters.

Usage

# S4 method for SpatRaster,SpatRaster
atan2(y, x)
# S4 method for SpatRaster,SpatRaster
atan_2(y, x, filename, ...)

Arguments

y

SpatRaster

x

SpatRaster

filename

character. Output filename

...

additional arguments for writing files as in writeRaster

See Also

Math-methods

Examples

r1 <- rast(nrows=10, ncols=10)
r2 <- rast(nrows=10, ncols=10)
values(r1) <- (runif(ncell(r1))-0.5) * 10
values(r2) <- (runif(ncell(r1))-0.5) * 10
atan2(r1, r2)