Intervals

Produce "nice" numbers.

** What are "nice" numbers/integers/datetimes? ** When I say "nice", I just mean that I try to calculate intervals which begin with 10, 5, 3, 2, 1 (adjusted to magnitude, of course!). For dates, I try to hit whole days, weeks, months or hours, minutes, and seconds.

Nice numbers

ints : Amount -> Range -> List Int

Produce a list of "nice" integers.

floats : Amount -> Range -> List Float

Produce a list of "nice" floats.

type Amount

around : Int -> Amount

Will get you around the amount of numbers you pass it, although it will prioritize getting "nice" numbers.

exactly : Int -> Amount

Will get you closer to the amount of numbers you pass it, although not actually exactly, since you still want decently "nice" numbers.

P.S. If you have a better name for this function, please contact me.

type alias Range =

{ min : Float

, max : Float

}

The upper and lower bound of your numbers/timestamps.

Custom numbers

custom : Float -> Float -> Range -> List Float

Makes evenly spaced floats.

Arguments:

A number which must be in your resulting numbers (commonly 0).
The interval between your numbers.
The range which your numbers must be between.

Intervals.custom 45 10 (Range 25 100)
-- ^ Makes [ 25, 35, 45, 55, 65, 75, 85, 95 ]


Intervals.custom 30 20 (Range 25 100)
-- ^ Makes [ 30, 50, 70, 90 ]

Nice times

times : Zone -> Int -> Range -> List Time

Produce a list of "nice" dates.