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@ianmackenzie ianmackenzie released this 02 Aug 23:26
2.2.0
cadb4c2

elm-units 2.2.0 brings three main changes: new modules for working with photometric units, support for working with angles in degrees/minutes/seconds form, and a couple new convenience functions for Quantity values.

Photometric units

This release brings new modules for dealing with different kinds of photometric quantities: SolidAngle, LuminousFlux, LuminousIntensity, Illuminance and Luminance. These kinds of quantities can be very confusing to think about - I've tried to describe them briefly in each module's documentation, but if you're new to the field then you'll probably have to do some reading of your own!

Angles in degrees, minutes and seconds

In some situations, such as when dealing with geographical data, it is common to represent angles as a number of degrees, minutes (1/60th of a degree) and seconds (1/60th of a minute). This release brings a handful of functions (and a new Angle.Sign type) to work with these kinds of values:

Angle.minutes : Float -> Angle
Angle.inMinutes : Angle -> Float
Angle.seconds : Float -> Angle
Angle.inSeconds : Angle -> Float
Angle.fromDms : { sign : Angle.Sign, degrees : Int, minutes : Int, seconds : Float } -> Angle
Angle.toDms : Angle -> { sign : Angle.Sign, degrees : Int, minutes : Int, seconds : Float }

Quantity convenience functions

A couple tiny convenience functions have been added to the Quantity module: twice, as a convenient shorthand for multiplyBy 2, and half as shorthand for multiplyBy 0.5.

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