Data.Geometry.Geos.Raw.Buffer

Documentation

data BufferParams

Instances

Eq BufferParams

Methods

(==) :: BufferParams -> BufferParams -> Bool

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

Show BufferParams

Methods

showsPrec :: Int -> BufferParams -> ShowS

show :: BufferParams -> String

showList :: [BufferParams] -> ShowS

withBufferParams :: BufferParams -> (Ptr GEOSBufferParams -> IO a) -> IO a

data BufferCapStyle

Instances

Eq BufferCapStyle

Methods

(==) :: BufferCapStyle -> BufferCapStyle -> Bool

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

Show BufferCapStyle

Methods

showsPrec :: Int -> BufferCapStyle -> ShowS

show :: BufferCapStyle -> String

showList :: [BufferCapStyle] -> ShowS

data BufferJoinStyle

Instances

Eq BufferJoinStyle

Methods

(==) :: BufferJoinStyle -> BufferJoinStyle -> Bool

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

Show BufferJoinStyle

Methods

showsPrec :: Int -> BufferJoinStyle -> ShowS

show :: BufferJoinStyle -> String

showList :: [BufferJoinStyle] -> ShowS

buffer :: Geometry a => a -> BufferParams -> Double -> Geos a

createBufferParams :: Geos BufferParams

setEndCapStyle :: BufferParams -> BufferCapStyle -> Geos ()

setJoinStyle :: BufferParams -> BufferJoinStyle -> Geos ()

setMitreLimit :: BufferParams -> Double -> Geos ()

setQuadrantSegments :: BufferParams -> Int -> Geos ()

setSingleSided :: BufferParams -> Bool -> Geos ()

bufferWithStyle :: Geometry a => a -> Double -> Int -> BufferCapStyle -> BufferJoinStyle -> Double -> Geos a

offsetCurve :: Geometry a => a -> Double -> Int -> BufferJoinStyle -> Double -> Geos a

Will only accept LineString geometries. For the width parameter, negative doubles represent a right-side offset, and positive doubles represent a left-side offset.

capRound :: BufferCapStyle

capFlat :: BufferCapStyle

capSquare :: BufferCapStyle

joinRound :: BufferJoinStyle

joinMitre :: BufferJoinStyle

joinBevel :: BufferJoinStyle