Nothing
render_polyline <- function(colour, linewidth, linetype, lineend, linejoin) {
dev <- agg_capture()
grid::grid.lines(x = c(0.1, 0.4, 0.8, 0.5, 0.9), y = c(0.9, 0.7, 0.1, 0.3, 0.8),
gp = grid::gpar(col = colour, lwd = linewidth,
lty = linetype, linewidth = linewidth,
lineend = lineend))
out <- dev()
dev.off()
out
}
test_that("polyline stroke works", {
polyline <- table(render_polyline('black', 14, 'solid', 'round', 'round'))
expect_equal(polyline[['white']], 218850)
expect_equal(polyline[['black']], 9298)
polyline <- table(render_polyline('black', 14, 'dotdash', 'round', 'round'))
expect_equal(polyline[['black']], 5497)
polyline <- table(render_polyline('black', 14, 'solid', 'butt', 'round'))
expect_equal(polyline[['black']], 9219)
polyline <- table(render_polyline('black', 14, 'solid', 'round', 'bevel'))
expect_equal(polyline[['black']], 9298)
polyline <- table(render_polyline('blue', 14, 'solid', 'round', 'round'))
expect_equal(polyline[['blue']], 9298)
polyline <- table(render_polyline('#DE2D7633', 14, 'solid', 'round', 'round'))
expect_equal(polyline[['#F8D5E4']], 9298)
})
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