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.

In order to use this module you should start with the following imports:

import Data.Geo.Jord.Speed (Speed)
import qualified Data.Geo.Jord.Speed as Speed

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

Ord Speed

Defined in Data.Geo.Jord.Speed

Methods

compare :: Speed -> Speed -> Ordering

(<) :: Speed -> Speed -> Bool

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

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

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

max :: Speed -> Speed -> Speed

min :: Speed -> Speed -> Speed

Read Speed

See speed.

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

Smart constructors

average :: Length -> Duration -> Speed

Speed from covered distance and duration.

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

speed :: ReadP Speed

Parses and returns a Speed formatted as (-)float[ms|kmh|mph|kt]. e.g. 300ms, 250kmh, -154mph, 400kt or 100ft/s.

read :: String -> Maybe Speed

Reads a Speed from the given string using speed.

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.

Misc

add :: Speed -> Speed -> Speed

Adds 2 speeds.

subtract :: Speed -> Speed -> Speed

Subtracts 2 speeds.

zero :: Speed

0 speed.