This function creates colors of class HSV; a subclass of the virtual color-class class.

HSV(H, S, V, names)

Arguments

H, S, V

These arguments give the hue, saturation and value of the colors. The values can be provided in separate H, S and V vectors or in a three-column matrix passed as H.

names

A vector of names for the colors (by default the row names of H are used).

Value

An object of class HSV which inherits from class color.

Details

This function creates colors in an HSV color space. The hues should lie between between 0 and 360, and the saturations and values should lie between 0 and 1.

HSV is a relative color space; it is a transformation of an RGB color space. Conversion of HSV colors to any other color space must first involve a conversion to a specific RGB color space, for example the standard sRGB color space (IEC standard 61966).

See also

Author

Ross Ihaka

Examples

# A rainbow of full-intensity hues HSV(seq(0, 360, length.out = 13)[-13], 1, 1)
#> H S V #> [1,] 0 1 1 #> [2,] 30 1 1 #> [3,] 60 1 1 #> [4,] 90 1 1 #> [5,] 120 1 1 #> [6,] 150 1 1 #> [7,] 180 1 1 #> [8,] 210 1 1 #> [9,] 240 1 1 #> [10,] 270 1 1 #> [11,] 300 1 1 #> [12,] 330 1 1