jord-0.5.0.0: Geographical Position Calculations

Copyright	(c) 2018 Cedric Liegeois
License	BSD3
Maintainer	Cedric Liegeois <ofmooseandmen@yahoo.fr>
Stability	experimental
Portability	portable
Safe Haskell	Safe
Language	Haskell2010

Data.Geo.Jord.Speed

Contents

The Speed type
Smart constructors
Read
Conversions

Description

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

Synopsis

data Speed
metresPerSecond :: Double -> Speed
kilometresPerHour :: Double -> Speed
milesPerHour :: Double -> Speed
knots :: Double -> Speed
feetPerSecond :: Double -> Speed
readSpeed :: String -> Speed
readSpeedE :: String -> Either String Speed
readSpeedF :: MonadFail m => String -> m Speed
toMetresPerSecond :: Speed -> Double
toKilometresPerHour :: Speed -> Double
toMilesPerHour :: Speed -> Double
toKnots :: Speed -> Double
toFeetPerSecond :: Speed -> Double

The `Speed` type

data Speed Source #

A speed with a resolution of 1 millimetre per hour.

Instances

Eq Speed Source #
Instance details Defined in Data.Geo.Jord.Speed Methods (==) :: Speed -> Speed -> Bool # (/=) :: Speed -> Speed -> Bool #
Read Speed Source #	See `readSpeed`.
Instance details Defined in Data.Geo.Jord.Speed Methods readsPrec :: Int -> ReadS Speed # readList :: ReadS [Speed] # readPrec :: ReadPrec Speed # readListPrec :: ReadPrec [Speed] #
Show Speed Source #	Speed is shown in kilometres per hour.
Instance details Defined in Data.Geo.Jord.Speed Methods showsPrec :: Int -> Speed -> ShowS # show :: Speed -> String # showList :: [Speed] -> ShowS #
Quantity Speed Source #	Add/Subtract Speed.
Instance details Defined in Data.Geo.Jord.Speed Methods add :: Speed -> Speed -> Speed Source # sub :: Speed -> Speed -> Speed Source # zero :: Speed Source #

Smart constructors

metresPerSecond :: Double -> Speed Source #

Speed from given amount of metres per second.

kilometresPerHour :: Double -> Speed Source #

Speed from given amount of kilometres per hour.

milesPerHour :: Double -> Speed Source #

Speed from given amount of miles per hour.

knots :: Double -> Speed Source #

Speed from given amount of knots.

feetPerSecond :: Double -> Speed Source #

Speed from given amount of feet per second.

Read

readSpeed :: String -> Speed Source #

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 Source #

Same as readSpeed but returns a Either.

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

Same as readSpeed but returns a MonadFail.

Conversions

toMetresPerSecond :: Speed -> Double Source #

toMetresPerSecond s converts s to metres per second.

toKilometresPerHour :: Speed -> Double Source #

toKilometresPerHour s converts s to kilometres per hour.

toMilesPerHour :: Speed -> Double Source #

toMilesPerHour s converts s to miles per hour.

toKnots :: Speed -> Double Source #

toKnots s converts s to knots.

toFeetPerSecond :: Speed -> Double Source #

toFeetPerSecond s converts s to feet per second.