Data.Colour

Colour representations and combinations, based on https://hackage.haskell.org/package/Color

Documentation

data Colour

Wrapper for Color.

Instances

Eq Colour

Defined in Data.Colour

Methods

(==) :: Colour -> Colour -> Bool

(/=) :: Colour -> Colour -> Bool

Show Colour

Defined in Data.Colour

Methods

showsPrec :: Int -> Colour -> ShowS

show :: Colour -> String

showList :: [Colour] -> ShowS

Generic Colour

Defined in Data.Colour

Associated Types

type Rep Colour :: Type -> Type

Methods

from :: Colour -> Rep Colour x

to :: Rep Colour x -> Colour

type Rep Colour

Defined in Data.Colour

type Rep Colour = D1 ('MetaData "Colour" "Data.Colour" "chart-svg-0.2.2-AJskDBGhW2w5nFQE5Ah360" 'True) (C1 ('MetaCons "Colour'" 'PrefixI 'True) (S1 ('MetaSel ('Just "color'") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (Color (Alpha RGB) Double))))

pattern Colour :: Double -> Double -> Double -> Double -> Colour

Constructor pattern.

opac :: Colour -> Double

opac

setOpac :: Double -> Colour -> Colour

set opacity

hex :: Colour -> Text

blend :: Double -> Colour -> Colour -> Colour

interpolate between 2 colors

blends :: Double -> [Colour] -> Colour

interpolate across a list of Colours, with input being in Range 0 1

>>> blends 0 [black, (Colour 0.2 0.6 0.8 0.5), white] == black
True

>>> blends 1 [black, (Colour 0.2 0.6 0.8 0.5), white] == white
True

>>> blends 0.6 [black, (Colour 0.2 0.6 0.8 0.5), white]
Colour 0.36 0.68 0.84 0.60

toHex :: Colour -> Text

convert from Colour to #xxxxxx

fromHex :: Text -> Either Text (Color RGB Double)

unsafeFromHex :: Text -> Color RGB Double

palette1 :: Int -> Colour

select a Colour from the palette

>>> palette1 0
Colour 0.69 0.35 0.16 1.00

palette1_ :: [Colour]

finite list of Colours

transparent :: Colour

zero opacity black

>>> transparent
Colour 0.00 0.00 0.00 0.00

black :: Colour

>>> black
Colour 0.00 0.00 0.00 1.00

white :: Colour

>>> white
Colour 0.99 0.99 0.99 1.00

light :: Colour

For lighter huds against a dark background ...

colourHudOptions light defaultHudOptions

>>> light
Colour 0.94 0.94 0.94 1.00

dark :: Colour

dark is hardcoded in most of the default options.

>>> dark
Colour 0.05 0.05 0.05 1.00