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whymarrh/RangeMap.kt

Created March 12, 2017 23:08
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Map a value from one range to another
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RangeMap.kt
fun rangeMap(value: Double, from: ClosedRange<Double>, to: ClosedRange<Double>): Double {
require(value in from, { "value $value must be in source range $from" })
return to.start + (to.endInclusive - to.start) * (value - from.start) / (from.endInclusive - from.start)
}
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