Read color table and add hex colours — get_ctab • ggseg.extra

Reads a FreeSurfer color lookup table and adds hex colour codes for use in plotting.

Usage

get_ctab(color_lut)

Arguments

color_lut: Path to a color table file, or a data.frame that passes is_ctab().

Value

A data.frame with the original columns plus roi (zero-padded index) and color (hex colour code).

See also

read_ctab(), is_ctab()

Examples

ct <- data.frame(
  idx = 0:1, label = c("Unknown", "Region1"),
  R = c(0L, 205L), G = c(0L, 130L), B = c(0L, 176L), A = c(0L, 0L)
)
get_ctab(ct)
#>   idx   label   R   G   B A  roi   color
#> 1   0 Unknown   0   0   0 0 0000 #000000
#> 2   1 Region1 205 130 176 0 0001 #CD82B0