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-0.2.0-92kmzNutfhz4Yaw4NJVLJs" '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

get opacity

setOpac :: Double -> Colour -> Colour

set opacity

fromRGB :: Color RGB Double -> Double -> Colour

hex :: Colour -> Text

palette :: [Color RGB Double]

some RGB colors to work with

palette1 :: [Colour]

some RGBA colors

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]
RGBA 0.16 0.48 0.64 0.60

toHex :: Colour -> Text

convert from Colour to #xxxxxx

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

unsafeFromHex :: Text -> Color RGB Double

grayscale :: Double -> Color RGB Double

gray with 1 opacity

colorText :: Colour

standard text color

transparent :: Colour

black :: Colour

white :: Colour