Fractal.RUFF.Mandelbrot.Image

Generic (slow) functions to render images.

Documentation

simpleImage

Arguments

:: (Ord r, Floating r)

=> Coordinates r

coordinates

-> Int

max iterations

-> UArray (Int, Int) Bool

image

Render an image with the Simple algorithm. The iteration count is doubled until the image is good enough, or the fixed maximum iteration count is reached.

putStr . unicode $ simpleImage (coordinates 100 100 ((-1.861):+0) (0.001)) 1000000000

complexImage

Arguments

:: (Ord r, Real r, Floating r)

=> Coordinates r

coordinates

-> Int

max iterations

-> UArray (Int, Int, Channel) Float

image

Render an image with the DistanceEstimate algorithm. The iteration count is doubled until the image is good enough, or the fixed maximum iteration count is reached. The output values are converted to Float.

putStr . unicode . border $ complexImage (coordinates 100 100 ((-1.861):+0) (0.001)) 1000000000

imageLoop

Arguments

:: (Ord r, Floating r)

=> STRef s Int

escapees

-> a

output array

-> Int

max iterations

-> Int

iterations

-> Bool

prior escapees

-> Int

iterations this phase

-> [Iterate u r]

iterates

-> (Output u r -> ST s ())

output callback

-> ST s a

output array as given

Image rendering loop.

coordinates

Arguments

:: (Ord r, Floating r)

=> Int

width

-> Int

height

-> Complex r

center

-> r

size

-> Coordinates r

The parameter plane coordinates for an image, with bounds.

ascii

Arguments

:: UArray (Int, Int) Bool

image

-> String

ascii

Convert a bit array to ascii graphics.

unicode

Arguments

:: UArray (Int, Int) Bool

image

-> String

unicode

Convert a bit array to unicode block graphics.

data Channel

Channels in an image.

Constructors

EscapeTime

continuous dwell

DistanceEstimate'

normalized to pixel spacing

FinalAngle

in [-pi,pi]

Instances

Bounded Channel

Methods

minBound :: Channel

maxBound :: Channel

Enum Channel

Methods

succ :: Channel -> Channel

pred :: Channel -> Channel

toEnum :: Int -> Channel

fromEnum :: Channel -> Int

enumFrom :: Channel -> [Channel]

enumFromThen :: Channel -> Channel -> [Channel]

enumFromTo :: Channel -> Channel -> [Channel]

enumFromThenTo :: Channel -> Channel -> Channel -> [Channel]

Eq Channel

Methods

(==) :: Channel -> Channel -> Bool

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

Data Channel

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Channel -> c Channel

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Channel

toConstr :: Channel -> Constr

dataTypeOf :: Channel -> DataType

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c Channel)

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Channel)

gmapT :: (forall b. Data b => b -> b) -> Channel -> Channel

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Channel -> r

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Channel -> r

gmapQ :: (forall d. Data d => d -> u) -> Channel -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Channel -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Channel -> m Channel

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Channel -> m Channel

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Channel -> m Channel

Ord Channel

Methods

compare :: Channel -> Channel -> Ordering

(<) :: Channel -> Channel -> Bool

(<=) :: Channel -> Channel -> Bool

(>) :: Channel -> Channel -> Bool

(>=) :: Channel -> Channel -> Bool

max :: Channel -> Channel -> Channel

min :: Channel -> Channel -> Channel

Read Channel

Methods

readsPrec :: Int -> ReadS Channel

readList :: ReadS [Channel]

readPrec :: ReadPrec Channel

readListPrec :: ReadPrec [Channel]

Show Channel

Methods

showsPrec :: Int -> Channel -> ShowS

show :: Channel -> String

showList :: [Channel] -> ShowS

Ix Channel

Methods

range :: (Channel, Channel) -> [Channel]

index :: (Channel, Channel) -> Channel -> Int

unsafeIndex :: (Channel, Channel) -> Channel -> Int

inRange :: (Channel, Channel) -> Channel -> Bool

rangeSize :: (Channel, Channel) -> Int

unsafeRangeSize :: (Channel, Channel) -> Int

type Coordinates r = (((Int, Int), (Int, Int)), [(Pair Int Int, Complex r)])

Image bounds and coordinates.

border

Arguments

:: UArray (Int, Int, Channel) Float

image

-> UArray (Int, Int) Bool

Convert a distance estimate image to a near-boundary bit array. The input image must have a DistanceEstimate' channel.