Uses farver::compare_colour() to calculate perceptual distances
along intervals over a palette-function.
get_distance(pal_luv, n = 20, method = "cie2000", ...)function with S3 class "cpath_pal_luv"
numeric number of intervals into which to split domain
of the palette.
character method to use for distance, one of
"cie2000", "euclidean", "cie1976", "cie94", or "cmc".
other arguments sent to farver::compare_colour().
numeric vector, length n, perceptual distances for
each interval.