palette

Feb 27, 2020

Changes in this version

+ var ErrNaN = errors.New("palette: specified value == NaN")

+ var ErrOverflow = errors.New("palette: specified value > maximum")

+ var ErrUnderflow = errors.New("palette: specified value < minimum")

+ var HSVAModel = color.ModelFunc(hsvaModel)

+ type ColorMap interface

+ Alpha func() float64

+ At func(float64) (color.Color, error)

+ Max func() float64

+ Min func() float64

+ Palette func(colors int) Palette

+ SetAlpha func(float64)

+ SetMax func(float64)

+ SetMin func(float64)

+ func Reverse(c ColorMap) ColorMap

+ type DivergingColorMap interface

+ ConvergePoint func() float64

+ SetConvergePoint func(float64)

+ type DivergingPalette interface

+ CriticalIndex func() (low, high int)

+ func Radial(colors int, start, end Hue, alpha float64) DivergingPalette

+ type HSVA struct

+ A float64

+ H float64

+ S float64

+ V float64

+ func (c HSVA) RGBA() (r, g, b, a uint32)

+ type Hue float64

+ const Blue

+ const Cyan

+ const Green

+ const Magenta

+ const Red

+ const Yellow

+ func (h Hue) Complement() Hue

+ type Palette interface

+ Colors func() []color.Color

+ func Heat(colors int, alpha float64) Palette

+ func Rainbow(colors int, start, end Hue, sat, val, alpha float64) Palette