Data.Geo.Jord.GeoPos

Types to represent a geographic position by its latitude and longitude.

The GeoPos type

data GeoPos

A geographic position (latitude and longitude).

Instances

Eq GeoPos

Defined in Data.Geo.Jord.GeoPos

Methods

(==) :: GeoPos -> GeoPos -> Bool

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

Read GeoPos

See readGeoPos.

Defined in Data.Geo.Jord.GeoPos

Methods

readsPrec :: Int -> ReadS GeoPos

readList :: ReadS [GeoPos]

readPrec :: ReadPrec GeoPos

readListPrec :: ReadPrec [GeoPos]

Show GeoPos

Defined in Data.Geo.Jord.GeoPos

Methods

showsPrec :: Int -> GeoPos -> ShowS

show :: GeoPos -> String

showList :: [GeoPos] -> ShowS

Position GeoPos

GeoPos to/from NVector.

Defined in Data.Geo.Jord.GreatCircle

Methods

fromNVector :: NVector -> GeoPos

toNVector :: GeoPos -> NVector

Smart constructors

latLong :: Angle -> Angle -> GeoPos

GeoPos from given latitude and longitude. errors if given latitude is outisde [-90..90]° and/or given longitude is outisde [-180..180]°.

latLongE :: Angle -> Angle -> Either String GeoPos

GeoPos from given latitude and longitude. A Left indicates that the given latitude is outisde [-90..90]° and/or given longitude is outisde [-180..180]°.

latLongF :: MonadFail m => Angle -> Angle -> m GeoPos

GeoPos from given latitude and longitude. fails if given latitude is outisde [-90..90]° and/or given longitude is outisde [-180..180]°.

latLongDecimal :: Double -> Double -> GeoPos

GeoPos from given latitude and longitude in decimal degrees. errors if given latitude is outisde [-90..90]° and/or given longitude is outisde [-180..180]°.

latLongDecimalE :: Double -> Double -> Either String GeoPos

GeoPos from given latitude and longitude in decimal degrees. A Left indicates that the given latitude is outisde [-90..90]° and/or given longitude is outisde [-180..180]°.

latLongDecimalF :: MonadFail m => Double -> Double -> m GeoPos

GeoPos from given latitude and longitude in decimal degrees. fails if given latitude is outisde [-90..90]° and/or given longitude is outisde [-180..180]°.

read

readGeoPos :: String -> GeoPos

Obtains a GeoPos from the given string formatted as either:

• DD(MM)(SS)[N|S]DDD(MM)(SS)[E|W] - e.g. 553621N0130002E or 0116S03649E or 47N122W
• Angle[N|S] Angle[E|W] - e.g. 55°36'21''N 13°0'02''E or 11°16'S 36°49'E or 47°N 122°W

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

readGeoPosE :: String -> Either String GeoPos

Same as readGeoPos but returns a Either.

readGeoPosF :: MonadFail m => String -> m GeoPos

Same as readGeoPos but returns a MonadFail.

Misc.

toDecimalDegrees' :: GeoPos -> (Double, Double)

Converts the given GeoPos to tuple of latitude and longitude in decimal degrees.