Create colors ranging between two specified limits, with white in the middle.

oceColorsTwo(n, low = 2/3, high = 0, smax = 1, alpha = 1)

Arguments

n

number of colors to generate.

low, high

numerical values (in range 0 to 1) specifying the hue for the low and high ends of the color scale.

smax

numerical value (in range 0 to 1) for the color saturation.

alpha

numerical value (in ragne 0 to 1) for the alpha (transparency) of the colors.

Examples

library(oce)
imagep(volcano - mean(range(volcano)),
    col = oceColorsTwo(128),
    zlim = "symmetric", zlab = "oceColorsTwo"
)