1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
context("Fortify")
test_that("spatial polygons have correct ordering", {
skip_if_not_installed("sp")
make_square <- function(x = 0, y = 0, height = 1, width = 1){
delx <- width/2
dely <- height/2
sp::Polygon(matrix(c(x + delx, x - delx,x - delx,x + delx,x + delx ,
y - dely,y - dely,y + dely,y + dely,y - dely), ncol = 2))
}
make_hole <- function(x = 0, y = 0, height = .5, width = .5){
p <- make_square(x = x, y = y, height = height, width = width)
p@hole <- TRUE
p
}
fake_data <- data_frame(ids = 1:5, region = c(1,1,2,3,4))
rownames(fake_data) <- 1:5
polys <- list(sp::Polygons(list(make_square(), make_hole()), 1),
sp::Polygons(list(make_square(1,0), make_square(2, 0)), 2),
sp::Polygons(list(make_square(1,1)), 3),
sp::Polygons(list(make_square(0,1)), 4),
sp::Polygons(list(make_square(0,3)), 5))
polys_sp <- sp::SpatialPolygons(polys)
fake_sp <- sp::SpatialPolygonsDataFrame(polys_sp, fake_data)
# now reorder regions
polys2 <- rev(polys)
polys2_sp <- sp::SpatialPolygons(polys2)
fake_sp2 <- sp::SpatialPolygonsDataFrame(polys2_sp, fake_data)
fake_sp2_fortified <- fortify(fake_sp2)
expect_equivalent(fortify(fake_sp), fake_sp2_fortified[order(fake_sp2_fortified$id, fake_sp2_fortified$order), ])
})
test_that("fortify.default proves a helpful error with class uneval", {
expect_error(
ggplot(aes(x = x)),
regexp = paste(
"`data` must be a data frame, or other object coercible by (.+)",
"Did you accidentally pass `aes\\(\\)` to the `data` argument?",
sep = "\\n"
)
)
})
|
