Data.Geo.Jord.Speed

Types and functions for working with speed in metres per second, kilometres per hour, miles per hour, knots or feet per second.

The Speed type

data Speed

A speed with a resolution of 1 millimetre per hour.

Instances

Eq Speed

Defined in Data.Geo.Jord.Speed

Methods

(==) :: Speed -> Speed -> Bool

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

Read Speed

See readSpeed.

Defined in Data.Geo.Jord.Speed

Methods

readsPrec :: Int -> ReadS Speed

readList :: ReadS [Speed]

readPrec :: ReadPrec Speed

readListPrec :: ReadPrec [Speed]

Show Speed

Speed is shown in kilometres per hour.

Defined in Data.Geo.Jord.Speed

Methods

showsPrec :: Int -> Speed -> ShowS

show :: Speed -> String

showList :: [Speed] -> ShowS

Quantity Speed

Add/Subtract Speed.

Defined in Data.Geo.Jord.Speed

Methods

add :: Speed -> Speed -> Speed

sub :: Speed -> Speed -> Speed

zero :: Speed

Smart constructors

metresPerSecond :: Double -> Speed

Speed from given amount of metres per second.

kilometresPerHour :: Double -> Speed

Speed from given amount of kilometres per hour.

milesPerHour :: Double -> Speed

Speed from given amount of miles per hour.

knots :: Double -> Speed

Speed from given amount of knots.

feetPerSecond :: Double -> Speed

Speed from given amount of feet per second.

Read

readSpeed :: String -> Speed

Obtains a Speed from the given string formatted as (-)float[ms|kmh|mph|kt] - e.g. 300ms, 250kmh, -154mph, 400kt or 100ft/s.

This simply calls read s :: Speed so error should be handled at the call site.

readSpeedE :: String -> Either String Speed

Same as readSpeed but returns a Either.

readSpeedF :: MonadFail m => String -> m Speed

Same as readSpeed but returns a MonadFail.

Conversions

toMetresPerSecond :: Speed -> Double

toMetresPerSecond s converts s to metres per second.

toKilometresPerHour :: Speed -> Double

toKilometresPerHour s converts s to kilometres per hour.

toMilesPerHour :: Speed -> Double

toMilesPerHour s converts s to miles per hour.

toKnots :: Speed -> Double

toKnots s converts s to knots.

toFeetPerSecond :: Speed -> Double

toFeetPerSecond s converts s to feet per second.