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test_that("single-panel fixed coordinates", {
base <- ggplot(mtcars, aes(wt, mpg)) + geom_point()
l <- ggplotly(base + coord_equal())$x
expect_equal(l$layout$yaxis$scaleanchor, "x")
expect_equal(l$layout$yaxis$scaleratio, 1)
l2 <- ggplotly(base + coord_fixed(0.5))$x
expect_equal(l2$layout$yaxis$scaleanchor, "x")
expect_equal(l2$layout$yaxis$scaleratio, 0.5)
})
test_that("multi-panel fixed coordinates", {
base <- ggplot(mtcars, aes(wt, mpg)) +
geom_point()
# fixed scales
p <- base +
coord_equal() +
facet_wrap(~cyl)
l <- ggplotly(p)$x
expect_equal(l$layout$xaxis$scaleanchor, "y")
expect_equal(l$layout$xaxis$scaleratio, 1)
expect_equal(l$layout$xaxis2$scaleanchor, "y")
expect_equal(l$layout$xaxis2$scaleratio, 1)
expect_equal(l$layout$xaxis3$scaleanchor, "y")
expect_equal(l$layout$xaxis3$scaleratio, 1)
# free scales
# NOTE: ggplot2 doesn't even do the "correct" thing here, but we do!
p <- base +
coord_equal() +
facet_wrap(~cyl, scales = "free")
l <- ggplotly(p)$x
expect_equal(l$layout$yaxis$scaleanchor, "x")
expect_equal(l$layout$yaxis$scaleratio, 1)
expect_equal(l$layout$yaxis2$scaleanchor, "x2")
expect_equal(l$layout$yaxis2$scaleratio, 1)
expect_equal(l$layout$yaxis3$scaleanchor, "x3")
expect_equal(l$layout$yaxis3$scaleratio, 1)
# fixed scales (2 rows)
p <- base +
coord_equal() +
facet_wrap(~cyl, ncol = 2)
l <- ggplotly(p)$x
expect_equal(l$layout$yaxis$scaleanchor, "x")
expect_equal(l$layout$yaxis$scaleratio, 1)
expect_equal(l$layout$yaxis2$scaleanchor, "x")
expect_equal(l$layout$yaxis2$scaleratio, 1)
expect_equal(l$layout$xaxis$scaleanchor, "y2")
expect_equal(l$layout$xaxis$scaleratio, 1)
# facet_grid
p <- base +
coord_equal() +
facet_grid(~cyl)
l <- ggplotly(p)$x
expect_equal(l$layout$xaxis$scaleanchor, "y")
expect_equal(l$layout$xaxis$scaleratio, 1)
expect_equal(l$layout$xaxis2$scaleanchor, "y")
expect_equal(l$layout$xaxis2$scaleratio, 1)
expect_equal(l$layout$xaxis3$scaleanchor, "y")
expect_equal(l$layout$xaxis3$scaleratio, 1)
})
# TODO: why does this fail on Travis?
# test_that("coord_map", {
#
# nz <- map_data("nz")
# nzmap <- ggplot(nz, aes(x = long, y = lat, group = group)) +
# geom_polygon(fill = "white", colour = "black") +
# coord_map()
# l <- ggplotly(nzmap)$x
#
# expect_equal(l$layout$xaxis$scaleanchor, "y")
# expect_equal(
# l$layout$xaxis$scaleratio, 0.7023914, tolerance = 0.0001
# )
# })
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