Data.Geometry.YX

A bitmap-friendly XY coordinate.

YX rather than XY since layout is row major (first row sorts before the second, etc.).

Documentation

data YX

A 2D coordinate.

YX implements Num. Integers are converted to their diagonal equivalent (for example 2 becomes YX 2 2).

Constructors

YX

Fields

• x :: !Int
• y :: !Int

Instances

Eq YX

Defined in Data.Geometry.YX

Methods

(==) :: YX -> YX -> Bool

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

Num YX

Defined in Data.Geometry.YX

Methods

(+) :: YX -> YX -> YX

(-) :: YX -> YX -> YX

(*) :: YX -> YX -> YX

negate :: YX -> YX

abs :: YX -> YX

signum :: YX -> YX

fromInteger :: Integer -> YX

Ord YX

Defined in Data.Geometry.YX

Methods

compare :: YX -> YX -> Ordering

(<) :: YX -> YX -> Bool

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

(>) :: YX -> YX -> Bool

(>=) :: YX -> YX -> Bool

max :: YX -> YX -> YX

min :: YX -> YX -> YX

Show YX

Defined in Data.Geometry.YX

Methods

showsPrec :: Int -> YX -> ShowS

show :: YX -> String

showList :: [YX] -> ShowS

Ix YX

Defined in Data.Geometry.YX

Methods

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

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

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

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

rangeSize :: (YX, YX) -> Int

unsafeRangeSize :: (YX, YX) -> Int

rows :: (YX, YX) -> [[YX]]

All coordinates, grouped by row.

up :: YX

Basic steps.

left :: YX

Basic steps.

right :: YX

Basic steps.

down :: YX

Basic steps.

steps4 :: [YX]

Ordered steps arrays.

steps8 :: [YX]

Ordered steps arrays.

byteStringToArray :: IArray a e => (Char -> Maybe e) -> ByteString -> Either String (a YX e)

arrayToByteString :: IArray a e => (e -> Char) -> a YX e -> ByteString

Reverse of byteStringToArray