color

Documentation

Index

• func BoundToGamutXY(x, y, rx, ry, gx, gy, bx, by float64) (cx, cy float64)
• func CtoRGB(c uint32) (r, g, b float64)
• func HSVtoRGB(h, s, v float64) (r, g, b float64)
• func RGBtoC(r, g, b float64) (c uint32)
• func RGBtoHSV(r, g, b float64) (h, s, v float64)
• func RGBtoXYB(r, g, b float64) (x, y, bri float64)
• func Seq(first, last uint32, num int) []uint32
• func SprintcTermBG(c uint32, s string) string
• func SprintcTermFG(c uint32, s string) string
• func XKCD(s string) (uint32, bool)
• func XYBtoRGB(x, y, bri float64) (r, g, b float64)

Functions

func BoundToGamutXY

func BoundToGamutXY(x, y, rx, ry, gx, gy, bx, by float64) (cx, cy float64)

BoundToGamutXY compares the point x,y to the triangle formed by rx,ry, gx,gy, bx,by. If the point falls within the triangle, x and y are returned. If the point falls outside the triangle, the x and y value of the nearest point on the triangle is returned.

func CtoRGB

func CtoRGB(c uint32) (r, g, b float64)

CtoRGB converts a 24 bit RGB value stored in the least significant bits

func HSVtoRGB

func HSVtoRGB(h, s, v float64) (r, g, b float64)

HSVtoRGB converts hue, saturation and brightness values on the range of 0.0 to 1.0 to RGB floating point values on the range of 0.0 to 1.0

func RGBtoC

func RGBtoC(r, g, b float64) (c uint32)

RGBtoC converts r, g, and b float64 values on the range of 0.0 to 1.0 to a 24 bit RGB value stored in the least significant bits of a uint32. The inputs are clamped to the range of 0.0 to 1.0

func RGBtoHSV

func RGBtoHSV(r, g, b float64) (h, s, v float64)

RGBtoHSV converts red, green, and blue floating point values on the range 0.0 to 1.0 to hue, saturation and brightness values on the range 0.0 to 1.0

func RGBtoXYB

func RGBtoXYB(r, g, b float64) (x, y, bri float64)

RGBtoXYB converts red, green, and blue floating point values on the range 0.0 to 1.0 to CIE colorspace x, y, and brightness values on the range 0.0 to 1.0 using Phillips Wide RGB D65 conversion.

func Seq

func Seq(first, last uint32, num int) []uint32

Seq returns num colors from first to last by interpolating in HSV colorspace

func SprintcTermBG

func SprintcTermBG(c uint32, s string) string

SprintcTermBG wraps s to set the terminal background color to the 24 bit RGB value of c

func SprintcTermFG

func SprintcTermFG(c uint32, s string) string

SprintcTermFG wraps s to set the terminal foreground color to the 24 bit RGB value of c

func XKCD

func XKCD(s string) (uint32, bool)

func XYBtoRGB

func XYBtoRGB(x, y, bri float64) (r, g, b float64)

XYBtoRGB converts CIE colorspace x, y, and brightness values on the range 0.0 to 1.0 to red, green, and blue floating point values on the range 0.0 to 1.0 using Phillips Wide RGB D65 conversion.