mandelbrot_palette {mandelbrot}

Generate palette suitable for coloring a set

Description

Takes a simple palette and expands / oscillates it for use with Mandelbrot sets.

Usage

mandelbrot_palette(palette, fold = TRUE, reps = 1L, in_set = "black")

Arguments

palette

vector of color hex strings (e.g. '#FFFFFF')

fold

wrap or fold the palette back on itself

reps

number of times to replicate the color vector

in_set

color for areas in the Mandelbrot set

Value

an extended color vector

Examples

view <- mandelbrot(xlim = c(-0.8438146, -0.8226294),
  ylim = c(0.1963144, 0.2174996), iter = 500)

# can be used to simply interpolate a color gradient
spectral <- RColorBrewer::brewer.pal(11, "Spectral")
cols <- mandelbrot_palette(spectral, fold = FALSE)
plot(view, col = cols, transform = "inv")

# simple palettes might need folds / reps to look good
blues <- RColorBrewer::brewer.pal(9, "Blues")
cols <- mandelbrot_palette(blues, in_set = "white",
  fold = TRUE, reps = 2)
plot(view, col = cols, transform = "log")