# Expect the z range, strip attributes to only compare values.
expect_st_z_range <- function(object, expected) {
expect_equal(unclass(st_z_range(object)), expected, check.attributes = FALSE)
}
test_that("st_z_range and st_z_range returns correct value from sfg objects", {
pt <- st_point(x = c(0,1,3,3))
expect_st_z_range(pt, c(3,3))
expect_equal(st_z_range(pt), st_z_range(pt))
mp <- st_multipoint(x = matrix(c(0,1,1,1,0,2,5,5), ncol = 4, byrow = TRUE))
expect_st_z_range(mp, c(1, 5))
expect_equal(st_z_range(mp), st_z_range(mp))
ls <- st_linestring(x = matrix(c(0,1,1,1,0,2,5,5,0,3,10,10), ncol = 4, byrow = TRUE))
expect_st_z_range(ls, c(1, 10))
expect_equal(st_z_range(ls), st_z_range(ls))
mls <- st_multilinestring(x = list(ls, matrix(c(0,1,5,5,0,1,-1,-1), ncol = 4, byrow = TRUE)))
expect_st_z_range(mls, c(-1, 10))
expect_equal(st_z_range(mls), st_z_range(mls))
pl <- st_polygon(x = list(matrix(c(0,0,1,1,0,1,2,2,1,1,3,3,1,0,4,4,0,0,1,1), ncol = 4, byrow = T)))
expect_st_z_range(pl, c(1, 4))
expect_equal(st_z_range(pl), st_z_range(pl))
mpl <- st_multipolygon(
x = list(pl, st_polygon(
x = list(matrix(c(0,0,10,10,0,-1,9,9,-1,-1,-10,-10,-1,0,-5,-5,0,0,10,10),
ncol = 4, byrow = TRUE))))
)
expect_st_z_range(mpl, c(-10, 10))
expect_equal(st_z_range(mpl), st_z_range(mpl))
gc <- st_geometrycollection(x = list(pt, mp))
expect_st_z_range(gc, c(1, 5))
expect_equal(st_z_range(gc), st_z_range(gc))
gc <- st_geometrycollection(x = list(ls, pl))
expect_st_z_range(gc, c(1, 10))
expect_equal(st_z_range(gc), st_z_range(gc))
gc <- st_geometrycollection(x = list(pt, mpl))
expect_st_z_range(gc, c(-10, 10))
expect_equal(st_z_range(gc), st_z_range(gc))
})
test_that("sf::st_z_range and sf::st_z_range returns correct value from sfc objects", {
pt <- st_sfc(st_point( x = c(0,1,3,3)))
# expect_equal(attr( pt, "zbox" ), c(3, 3)) # FIXME: now NULL
expect_st_z_range(pt, c(3, 3))
expect_equal(st_z_range(pt), st_z_range(pt))
mp <- st_sfc(st_multipoint( x = matrix(c(0,1,1,1,0,2,5,5), ncol = 4, byrow = TRUE)))
expect_st_z_range(mp, c(1, 5))
expect_equal(st_z_range(mp), st_z_range(mp))
ls <- st_sfc(st_linestring(x = matrix(c(0,1,1,1,0,2,5,5,0,3,10,10), ncol = 4, byrow = TRUE)))
expect_st_z_range(ls, c(1, 10))
expect_equal(st_z_range(ls), st_z_range(ls))
mls <- st_sfc(st_multilinestring(x = list(ls[[1]], matrix(c(0,1,5,5,0,1,-1,-1), ncol = 4, byrow = TRUE))))
expect_st_z_range(mls, c(-1, 10))
expect_equal(st_z_range(mls), st_z_range(mls))
pl <- st_sfc(st_polygon(x = list(matrix(c(0,0,1,1,0,1,2,2,1,1,3,3,1,0,4,4,0,0,1,1), ncol = 4, byrow = TRUE))))
expect_st_z_range(pl, c(1, 4))
expect_equal(st_z_range(pl), st_z_range(pl))
mpl <- st_sfc(st_multipolygon(x = list(pl[[1]], st_polygon( x = list( matrix(c(0,0,10,10,0,-1,9,9,-1,-1,-10,-10,-1,0,-5,-5,0,0,10,10), ncol = 4, byrow = TRUE))))))
expect_st_z_range(mpl, c(-10, 10))
expect_equal(st_z_range(mpl), st_z_range(mpl))
gc <- st_sfc(st_geometrycollection(x = list(pt[[1]], mp[[1]])))
expect_st_z_range(gc, c(1, 5))
expect_equal(st_z_range(gc), st_z_range(gc))
gc <- st_sfc(st_geometrycollection(x = list(ls[[1]], pl[[1]])))
expect_st_z_range(gc, c(1, 10))
expect_equal(st_z_range(gc), st_z_range(gc))
gc <- st_sfc(st_geometrycollection(x = list(pt[[1]], mpl[[1]])))
expect_st_z_range(gc, c(-10, 10))
expect_equal(st_z_range(gc), st_z_range(gc))
})
test_that("zmrange works on more compliated examples", {
set.seed(123)
m <- matrix(rnorm(300), ncol = 3)
expected <- c(min(m[,3]), max(m[,3]))
ls <- st_linestring(x = m)
expect_st_z_range(ls, expected)
ls <- st_sfc(ls)
expect_st_z_range(ls, expected)
expect_equal(
unclass(attr(ls, "z_range")),
expected,
check.attributes = FALSE
)
ls <- st_sf(geometry = ls)
expect_st_z_range(ls, expected)
expect_equal(
unclass(attr(ls$geometry, "z_range")),
expected,
check.attributes = FALSE
)
n <- 100
lst <- list()
min_z <- numeric(n)
max_z <- numeric(n)
set.seed(123)
for(i in seq_along(n)) {
m <- matrix(rnorm(sample(seq(3,300, by = 3), size = 1)), ncol = 3)
min_z[i] <- min(m[,3])
max_z[i] <- max(m[,3])
lst[[i]] <- st_linestring(m)
}
sfc <- st_sfc(lst)
expect_st_z_range(sfc, c(min(min_z), max(max_z)))
})
test_that("transform includes zm in output", {
skip_if(sf_extSoftVersion()[["GDAL"]] <= "2.1.0")
p1 = st_point(c(7,52,52))
p2 = st_point(c(-30,20,20))
sfc = st_sfc(p1, p2, crs = 4326)
res <- st_transform(sfc, 3857)
expect_contains(names(attributes(res)), "z_range")
expect_equal(st_z_range(res[[1]]), st_z_range(sfc[[1]]))
p1 = st_point(c(7,52,52,7))
p2 = st_point(c(-30,20,20,-30))
sfc = st_sfc(p1, p2, crs = 4326)
res <- st_transform(sfc, 3857)
expect_contains(names(attributes(res)), c("z_range", "m_range"))
expect_equal(st_z_range(res[[1]]), st_z_range(sfc[[1]]))
expect_equal(st_m_range(res[[1]]), st_m_range(sfc[[1]]))
})
test_that("XYM-only objects correctly calculate M (and not Z)", {
skip_if(sf_extSoftVersion()[["GDAL"]] <= "2.1.0")
sf_m <- st_read(system.file("/shape/storms_xyzm.shp", package = "sf"), quiet = TRUE)
m <- st_coordinates(sf_m)
mmin <- min(m[, 3])
mmax <- max(m[, 3])
expect_equal(unclass(st_m_range(sf_m)), c(mmin, mmax), check.attributes = FALSE)
sf_z <- st_read(system.file("/shape/storms_xyz.shp", package = "sf"), quiet = TRUE)
expect_equal(
unclass(st_m_range(sf_m)),
unclass(st_z_range(sf_z)),
check.attributes = FALSE
)
expect_null(st_z_range(sf_m))
expect_null(st_m_range(sf_z))
})
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