colors

Documentation

Index

• Variables
• func ColorAverage(c ...color.Color) color.Color
• func ColorAverageImage(i image.Image) color.Color
• func ColorRGBAToHex(c color.RGBA) string
• func ColorString(c color.Color) string
• func ColorToHex(c color.Color) string
• func Equal(c1, c2 color.Color) bool
• func GetGoogleChartColors() []color.RGBA
• func GoogleChartColorX(index uint64) color.RGBA
• func MatrixColumn(m [][]color.Color, colIdx uint) ([]color.Color, error)
• func MatrixUnique(c [][]color.Color) []color.Color
• func MustParse(input string) color.RGBA
• func Parse(colorName string) (color.RGBA, error)
• func ParseGoogle(googString string) (color.RGBA, error)
• func ParseHex(hexRGB string) (color.RGBA, error)
• func SliceUnique(c []color.Color) []color.Color
• type Colors
  • func (clrs Colors) In(c color.Color) bool

Variables

var (
	Red    = color.RGBA{R: 255, G: 0, B: 0, A: 255}
	Green  = color.RGBA{R: 0, G: 255, B: 0, A: 255}
	Blue   = color.RGBA{R: 0, G: 0, B: 255, A: 255}
	Orange = color.RGBA{R: 255, G: 165, B: 0, A: 255}
)

var GoogleChartColors = GetGoogleChartColors()

var GoogleChartColorsHex = [...]string{
	"#3366CC",
	"#DC3912",
	"#FF9900",
	"#109618",
	"#990099",
	"#3B3EAC",
	"#0099C6",
	"#DD4477",
	"#66AA00",
	"#B82E2E",
	"#316395",
	"#994499",
	"#22AA99",
	"#AAAA11",
	"#6633CC",
	"#E67300",
	"#8B0707",
	"#329262",
	"#5574A6",
	"#3B3EAC",
}

GoogleChartColorsHex is the color palette for Google Charts as collected by Craig Davis here: https://gist.github.com/there4/2579834

Functions

func ColorAverage

func ColorAverage(c ...color.Color) color.Color

func ColorAverageImage

func ColorAverageImage(i image.Image) color.Color

func ColorRGBAToHex

func ColorRGBAToHex(c color.RGBA) string

func ColorString

func ColorString(c color.Color) string

ColorString returns a full 16-bit color representation.

func ColorToHex

func ColorToHex(c color.Color) string

ColorToHex returns 6 byte hex code in lower case.

func Equal

func Equal(c1, c2 color.Color) bool

func GetGoogleChartColors

func GetGoogleChartColors() []color.RGBA

func GoogleChartColorX

func GoogleChartColorX(index uint64) color.RGBA

func MatrixColumn

func MatrixColumn(m [][]color.Color, colIdx uint) ([]color.Color, error)

func MatrixUnique

func MatrixUnique(c [][]color.Color) []color.Color

func MustParse

func MustParse(input string) color.RGBA

MustParse returns a `color.RGBA` given a hex color code or Google color string. It panics if the input string cannot be parsed.

func Parse

func Parse(colorName string) (color.RGBA, error)

Parse returns a `color.RGBA` given a color name or hex color code.

func ParseGoogle

func ParseGoogle(googString string) (color.RGBA, error)

func ParseHex

func ParseHex(hexRGB string) (color.RGBA, error)

ParseHex returns a `color.RGBA` given a hex color code.

func SliceUnique

func SliceUnique(c []color.Color) []color.Color

Types

type Colors

type Colors []color.Color

func (Colors) In

func (clrs Colors) In(c color.Color) bool