div_gradient_pal: Diverging colour gradient (continuous).

In scales: Scale Functions for Visualization

Diverging colour gradient (continuous).

Description

Diverging colour gradient (continuous).

Usage

div_gradient_pal(
  low = mnsl("10B 4/6"),
  mid = mnsl("N 8/0"),
  high = mnsl("10R 4/6"),
  space = "Lab"
)

Arguments

low	colour for low end of gradient.
mid	colour for mid point
high	colour for high end of gradient.
space	colour space in which to calculate gradient. Must be "Lab" - other values are deprecated.

Examples

x <- seq(-1, 1, length.out = 100)
r <- sqrt(outer(x^2, x^2, "+"))
image(r, col = div_gradient_pal()(seq(0, 1, length.out = 12)))
image(r, col = div_gradient_pal()(seq(0, 1, length.out = 30)))
image(r, col = div_gradient_pal()(seq(0, 1, length.out = 100)))

library(munsell)
pal <- div_gradient_pal(low = mnsl(complement("10R 4/6"), fix = TRUE))
image(r, col = pal(seq(0, 1, length.out = 100)))

scales documentation built on Aug. 20, 2022, 1:05 a.m.