Color interpolation
Color interpolation
colorRamp2(breaks, colors, transparency = 0, space = "LAB")
breaks |
A vector indicating numeric breaks |
colors |
A vector of colors which correspond to values in |
transparency |
A single value in |
space |
color space in which colors are interpolated. Value should be one of "RGB", "HSV", "HLS", "LAB", "XYZ", "sRGB", "LUV", see |
Colors are linearly interpolated according to break values and corresponding colors through CIE Lab color space (LAB) by default.
Values exceeding breaks will be assigned with corresponding maximum or minimum colors.
It returns a function which accepts a vector of numeric values and returns interpolated colors.
col2value converts back to the original values by providing the color mapping function generated by colorRamp2.
col_fun = colorRamp2(c(-1, 0, 1), c("green", "white", "red"))
col_fun(c(-2, -1, -0.5, 0, 0.5, 1, 2))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.