inst/tinytest/test_window.R

In terra: Spatial Data Analysis

# #library(terra)
# x <- rast(system.file("ex/logo.tif", package="terra"))
# y <- rast(system.file("ex/logo.tif", package="terra")) * 1
# e <- ext(c(35,55,35,55))
# z <- crop(x, e)

# window(x) <- e
# window(y) <- e
# a <- c(z, y, x) 

# s <- spatSample(x, 4, cell=TRUE)
# expect_equal(s, spatSample(y, 3, cell=TRUE))
# expect_equal(s, spatSample(z, 3, cell=TRUE))
# expect_equal(s, spatSample(a, 3, cell=TRUE))

# expect_equal(values(x), values(y))
# expect_equal(values(x), values(z))

# xy <- 10 * cbind(-1:6, -1:6)

# e1 <- extract(x, xy)
# e2 <- extract(y, xy)
# e3 <- extract(z, xy)
# e4 <- extract(a, xy)
# e <- cbind(e1, e2, e3) 

# expect_equal(e1, e2)
# expect_equal(e1, e3)
# expect_equivalent(e, e4)