test_that("sf::st_z_range and sf::st_z_range returns correct value from sfg objects", { pt <- sf::st_point( x = c(0,1,3,3)) expect_true( all( sf::st_z_range( pt ) == c(3,3) ) ) expect_true( all( sf::st_z_range( pt ) == sf::st_z_range( pt ) ) ) mp <- sf::st_multipoint( x = matrix(c(0,1,1,1,0,2,5,5), ncol = 4, byrow = T)) expect_true( all( sf::st_z_range( mp ) == c(1,5) ) ) expect_true( all( sf::st_z_range( mp ) == sf::st_z_range( mp ) ) ) ls <- sf::st_linestring(x = matrix(c(0,1,1,1,0,2,5,5,0,3,10,10), ncol = 4, byrow = T)) expect_true( all( sf::st_z_range( ls ) == c(1,10) ) ) expect_true( all( sf::st_z_range( ls ) == sf::st_z_range( ls ) ) ) mls <- sf::st_multilinestring(x = list(ls, matrix(c(0,1,5,5,0,1,-1,-1), ncol = 4, byrow = T))) expect_true( all( sf::st_z_range( mls ) == c(-1, 10 ) ) ) expect_true( all( sf::st_z_range( mls ) == sf::st_z_range( mls ) ) ) pl <- sf::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_true( all( sf::st_z_range( pl ) == c(1, 4))) expect_true( all( sf::st_z_range( pl ) == sf::st_z_range( pl ) ) ) mpl <- sf::st_multipolygon(x = list(pl, sf::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 = T) ) ) ) ) expect_true( all( sf::st_z_range( mpl ) == c(-10, 10) ) ) expect_true( all( sf::st_z_range( mpl ) == sf::st_z_range( mpl ) ) ) gc <- sf::st_geometrycollection(x = list(pt, mp)) expect_true( all( sf::st_z_range( gc ) == c(1, 5) ) ) expect_true( all( sf::st_z_range( gc ) == sf::st_z_range( gc ) ) ) gc <- sf::st_geometrycollection(x = list(ls, pl)) expect_true( all( sf::st_z_range( gc ) == c(1, 10) ) ) expect_true( all( sf::st_z_range( gc ) == sf::st_z_range( gc ) ) ) gc <- sf::st_geometrycollection(x = list(pt, mpl)) expect_true( all( sf::st_z_range( gc ) == c(-10, 10) ) ) expect_true( all( sf::st_z_range( gc ) == sf::st_z_range( gc ) ) ) }) test_that("sf::st_z_range and sf::st_z_range returns correct value from sfc objects", { pt <- sf::st_sfc( sf::st_point( x = c(0,1,3,3))) expect_true( all( attr( pt, "zbox" ) == c(3,3) ) ) expect_true( all( sf::st_z_range( pt ) == c(3,3) ) ) expect_true( all( sf::st_z_range( pt ) == sf::st_z_range( pt ) ) ) mp <- sf::st_sfc( sf::st_multipoint( x = matrix(c(0,1,1,1,0,2,5,5), ncol = 4, byrow = T))) expect_true( all( sf::st_z_range( mp ) == c(1,5) ) ) expect_true( all( sf::st_z_range( mp ) == sf::st_z_range( mp ) ) ) ls <- sf::st_sfc( sf::st_linestring(x = matrix(c(0,1,1,1,0,2,5,5,0,3,10,10), ncol = 4, byrow = T))) expect_true( all( sf::st_z_range( ls ) == c(1,10) ) ) expect_true( all( sf::st_z_range( ls ) == sf::st_z_range( ls ) ) ) mls <- sf::st_sfc( sf::st_multilinestring(x = list(ls[[1]], matrix(c(0,1,5,5,0,1,-1,-1), ncol = 4, byrow = T)))) expect_true( all( sf::st_z_range( mls ) == c(-1, 10 ) ) ) expect_true( all( sf::st_z_range( mls ) == sf::st_z_range( mls ) ) ) pl <- sf::st_sfc( sf::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_true( all( sf::st_z_range( pl ) == c(1, 4))) expect_true( all( sf::st_z_range( pl ) == sf::st_z_range( pl ) ) ) mpl <- sf::st_sfc( sf::st_multipolygon(x = list(pl[[1]], sf::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 = T) ) ) ) )) expect_true( all( sf::st_z_range( mpl ) == c(-10, 10) ) ) expect_true( all( sf::st_z_range( mpl ) == sf::st_z_range( mpl ) ) ) gc <- sf::st_sfc( sf::st_geometrycollection(x = list(pt[[1]], mp[[1]]))) expect_true( all( sf::st_z_range( gc ) == c(1, 5) ) ) expect_true( all( sf::st_z_range( gc ) == sf::st_z_range( gc ) ) ) gc <- sf::st_sfc( sf::st_geometrycollection(x = list(ls[[1]], pl[[1]]))) expect_true( all( sf::st_z_range( gc ) == c(1, 10) ) ) expect_true( all( sf::st_z_range( gc ) == sf::st_z_range( gc ) ) ) gc <- sf::st_sfc( sf::st_geometrycollection(x = list(pt[[1]], mpl[[1]]))) expect_true( all( sf::st_z_range( gc ) == c(-10, 10) ) ) expect_true( all( sf::st_z_range( gc ) == sf::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 <- sf::st_linestring(x = m ) expect_true( all( sf::st_z_range(ls) == expected ) ) ls <- sf::st_sfc( ls ) expect_true( all( sf::st_z_range(ls) == expected ) ) expect_true( all( attr(ls, "z_range") == expected ) ) ls <- sf::st_sf( geometry = ls ) expect_true( all( sf::st_z_range(ls) == expected ) ) expect_true( all( attr(ls$geometry, "z_range") == expected ) ) n <- 100 lst <- list() min_z <- numeric(n) max_z <- numeric(n) set.seed(123) for(i in 1: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]] <- sf::st_linestring( m ) } sfc <- sf::st_sfc( lst ) expect_true( all (sf::st_z_range( sfc ) == c(min(min_z), max(max_z)) ) ) }) test_that("transform includes zm in output", { skip_if_not(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_true( "z_range" %in% names( attributes(res) ) ) expect_equal( sf::st_z_range(res[[1]]), sf::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_true( "z_range" %in% names( attributes(res) ) ) expect_equal( sf::st_z_range(res[[1]]), sf::st_z_range(sfc[[1]]) ) expect_true( "m_range" %in% names( attributes(res) ) ) expect_equal( sf::st_m_range(res[[1]]), sf::st_m_range(sfc[[1]]) ) }) test_that("XYM-only objects correctly calculate M (and not Z)", { skip_if_not(sf_extSoftVersion()["GDAL"] > "2.1.0") sf_m <- sf::st_read(system.file("/shape/storms_xyzm.shp", package = "sf"), quiet = TRUE) m <- sf::st_coordinates( sf_m ) mmin <- min( m[, 3] ); mmax <- max( m[, 3] ) expect_true( all( sf::st_m_range( sf_m ) == c(mmin, mmax) ) ) sf_z <- sf::st_read(system.file("/shape/storms_xyz.shp", package = "sf"), quiet = TRUE) expect_true( all( sf::st_m_range( sf_m ) == sf::st_z_range( sf_z ) ) ) expect_true( is.null( sf::st_z_range( sf_m ) ) ) expect_true( is.null( sf::st_m_range( sf_z ) ) ) })
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