Data.Geo.Geodetic.Azimuth

An azimuth in degrees between 0 and 360.

Documentation

data Azimuth

Instances

Eq Azimuth

Ord Azimuth

Show Azimuth

A show instance that prints to 4 decimal places. This is to take floating-point rounding errors into account.

HasAzimuth Azimuth

class HasAzimuth t where

Methods

azimuth :: Lens' t Azimuth

Instances

HasAzimuth Azimuth

modAzimuth :: Double -> Azimuth

Construct an azimuth such that if the given value is out of bounds, a modulus is taken to keep it within 0 inclusive and 360 exclusive.

>>> modAzimuth 7
Azimuth 7.0000

>>> modAzimuth 0
Azimuth 0.0000

>>> modAzimuth 360
Azimuth 0.0000

>>> modAzimuth 361
Azimuth 1.0000

>>> modAzimuth 359.999
Azimuth 359.9990

nAzimuth :: Prism' Double Azimuth

A prism on azimuth to an integer between 0 and 359 inclusive.

>>> 7 ^? nAzimuth
Just (Azimuth 7.0000)

>>> 0 ^? nAzimuth
Just (Azimuth 0.0000)

>>> 359.999 ^? nAzimuth
Just (Azimuth 359.9990)

>>> 360 ^? nAzimuth
Nothing

all (\m -> nAzimuth # m == n) (n ^? nAzimuth)