Example code used in class discussion.
library(HSLuv)
df <- expand.grid(
H = c(30, 50, 230, 250),
S = seq(0, 100, by = 10),
L = seq(0, 100, by = 10))
library(scales)
df <- df %>%
mutate(
H = rescale(H, from = c(0, 360), to = c(0, 360) ),
S = rescale(S, from = c(0, 100), to = c(0, 100) ),
L = rescale(L, from = c(0, 100), to = c(0, 100) ))
ggplot(df) +
facet_wrap(~ H ) +
scale_x_continuous(
name = 'Luminance',
breaks = seq(0, 100, by = 20),
expand = c(0,0),
sec.axis = sec_axis(~., name = 'Hue')) +
scale_y_continuous(
name = 'Saturation',
breaks = seq(0, 100, by = 20),
expand = c(0,0)) +
scale_fill_identity() +
geom_raster(
mapping = aes(
x = L,
y = S,
fill = hsluv_hex(H, S, L)),
)
ggplot() +
theme_void() +
coord_equal() +
ggforce::geom_circle(
mapping = aes(
x0 = seq(from = 0, to = 1, length.out = 5),
y0 = c(0, .1, .2, .4, .8),
r = 1),
fill = "#000000",
alpha = 0.4)
x <- rnorm(1000)
y <- rnorm(1000)
ggplot() +
theme_void() +
scale_x_continuous(limits = c(-5, 5)) +
scale_y_continuous(limits = c(-5, 5)) +
geom_point(
mapping = aes(
x = x,
y = y),
size = 4,
color = "black",
alpha = 0.2)
ggplot() +
theme_void() +
scale_x_continuous(limits = c(-5, 5)) +
scale_y_continuous(limits = c(-5, 5)) +
geom_point(
mapping = aes(
x = 0,
y = 0),
size = 50,
color = "orange",
alpha = 0.4) +
geom_point(
mapping = aes(
x = 1,
y = 1),
size = 50,
color = "dodgerblue",
alpha = 0.4)