Safe Haskell	None
Language	Haskell2010

PostgresqlTypes.Lseg

Contents

Accessors
Constructors

Synopsis

data Lseg = Lseg Double Double Double Double
toX1 :: Lseg -> Double
toY1 :: Lseg -> Double
toX2 :: Lseg -> Double
toY2 :: Lseg -> Double
fromEndpoints :: Double -> Double -> Double -> Double -> Lseg

Documentation

data Lseg Source #

PostgreSQL lseg type. Line segment in 2D plane.

The line segment is defined by two endpoints, each with (x,y) coordinates. Stored as four 64-bit floating point numbers: (x1, y1, x2, y2).

PostgreSQL docs.

Constructors

Lseg
Fields Double X coordinate of first endpoint Double Y coordinate of first endpoint Double X coordinate of second endpoint Double Y coordinate of second endpoint

Instances

Instances details

Arbitrary Lseg Source #
Instance details Defined in PostgresqlTypes.Lseg Methods arbitrary :: Gen Lseg # shrink :: Lseg -> [Lseg] #
Eq Lseg Source #
Instance details Defined in PostgresqlTypes.Lseg Methods (==) :: Lseg -> Lseg -> Bool # (/=) :: Lseg -> Lseg -> Bool #
Ord Lseg Source #
Instance details Defined in PostgresqlTypes.Lseg Methods compare :: Lseg -> Lseg -> Ordering # (<) :: Lseg -> Lseg -> Bool # (<=) :: Lseg -> Lseg -> Bool # (>) :: Lseg -> Lseg -> Bool # (>=) :: Lseg -> Lseg -> Bool # max :: Lseg -> Lseg -> Lseg # min :: Lseg -> Lseg -> Lseg #
IsString Lseg Source #
Instance details Defined in PostgresqlTypes.Lseg Methods fromString :: String -> Lseg #
Read Lseg Source #
Instance details Defined in PostgresqlTypes.Lseg Methods readsPrec :: Int -> ReadS Lseg # readList :: ReadS [Lseg] # readPrec :: ReadPrec Lseg # readListPrec :: ReadPrec [Lseg] #
Show Lseg Source #
Instance details Defined in PostgresqlTypes.Lseg Methods showsPrec :: Int -> Lseg -> ShowS # show :: Lseg -> String # showList :: [Lseg] -> ShowS #
Hashable Lseg Source #
Instance details Defined in PostgresqlTypes.Lseg Methods hashWithSalt :: Int -> Lseg -> Int # hash :: Lseg -> Int #
IsScalar Lseg Source #
Instance details Defined in PostgresqlTypes.Lseg Methods schemaName :: Tagged Lseg (Maybe Text) # typeName :: Tagged Lseg Text # baseOid :: Tagged Lseg (Maybe Word32) # arrayOid :: Tagged Lseg (Maybe Word32) # typeParams :: Tagged Lseg [Text] # typeSignature :: Tagged Lseg Text # binaryEncoder :: Lseg -> Write # binaryDecoder :: Variable (Either DecodingError Lseg) # textualEncoder :: Lseg -> TextBuilder # textualDecoder :: Parser Lseg #

Accessors

toX1 :: Lseg -> Double Source #

Extract the X coordinate of the first endpoint.

toY1 :: Lseg -> Double Source #

Extract the Y coordinate of the first endpoint.

toX2 :: Lseg -> Double Source #

Extract the X coordinate of the second endpoint.

toY2 :: Lseg -> Double Source #

Extract the Y coordinate of the second endpoint.

Constructors

fromEndpoints :: Double -> Double -> Double -> Double -> Lseg Source #

Construct a PostgreSQL Lseg from endpoint coordinates.