Data.Colour.SRGB.Linear

Provides a linear colour space with the same gamut as Data.Colour.SRGB.

Documentation

data Colour a

This type represents the human preception of colour. The a parameter is a numeric type used internally for the representation.

The Monoid instance allows one to add colours, but beware that adding colours can take you out of gamut. Consider using blend whenever possible.

Instances

ColourOps Colour

Methods

over :: Num a => AlphaColour a -> Colour a -> Colour a

darken :: Num a => a -> Colour a -> Colour a

AffineSpace Colour

Methods

affineCombo :: Num a => [(a, Colour a)] -> Colour a -> Colour a

Eq a => Eq (Colour a)

Methods

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

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

Num a => Semigroup (Colour a)

Methods

(<>) :: Colour a -> Colour a -> Colour a

sconcat :: NonEmpty (Colour a) -> Colour a

stimes :: Integral b => b -> Colour a -> Colour a

Num a => Monoid (Colour a)

Methods

mempty :: Colour a

mappend :: Colour a -> Colour a -> Colour a

mconcat :: [Colour a] -> Colour a

data RGB a

An RGB triple for an unspecified colour space.

Constructors

RGB

Fields

• channelRed :: !a
• channelGreen :: !a
• channelBlue :: !a

Instances

Functor RGB

Methods

fmap :: (a -> b) -> RGB a -> RGB b

(<$) :: a -> RGB b -> RGB a

Applicative RGB

Methods

pure :: a -> RGB a

(<*>) :: RGB (a -> b) -> RGB a -> RGB b

(*>) :: RGB a -> RGB b -> RGB b

(<*) :: RGB a -> RGB b -> RGB a

Eq a => Eq (RGB a)

Methods

(==) :: RGB a -> RGB a -> Bool

(/=) :: RGB a -> RGB a -> Bool

Read a => Read (RGB a)

Methods

readsPrec :: Int -> ReadS (RGB a)

readList :: ReadS [RGB a]

readPrec :: ReadPrec (RGB a)

readListPrec :: ReadPrec [RGB a]

Show a => Show (RGB a)

Methods

showsPrec :: Int -> RGB a -> ShowS

show :: RGB a -> String

showList :: [RGB a] -> ShowS

rgb :: Fractional a => a -> a -> a -> Colour a

Constructs a Colour from RGB values using the linear RGB colour with the same gamut as sRGB.

toRGB :: Fractional a => Colour a -> RGB a

Return RGB values using the linear RGB colour with the same gamut as sRGB.

sRGBGamut :: RGBGamut

This is the gamut for the sRGB colour space.