Created
September 30, 2019 11:53
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Simple conversion between meters and nautical miles and vice versa.
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| import kotlin.math.roundToInt | |
| import kotlin.test.assertEquals | |
| const val PI = 3.14 | |
| const val NAUTICAL_MILE_IN_METERS = 1852 | |
| const val MEAN_EARTH_RADIUS = 6371100 | |
| fun main(args: Array<String>): Unit { | |
| assertEquals(NAUTICAL_MILE_IN_METERS, toMeters(1)) | |
| assertEquals(10 * NAUTICAL_MILE_IN_METERS, toMeters(10)) | |
| assertEquals(0.0005399568034557236, toNauticalMiles(1)) | |
| assertEquals(0.5399568034557235, toNauticalMiles(1000)) | |
| assertEquals(1.0, toNauticalMiles(NAUTICAL_MILE_IN_METERS)) | |
| assertEquals(1.079913606911447, toNauticalMiles(2000)) | |
| assertEquals(5.399568034557236, toNauticalMiles(10000)) | |
| } | |
| fun toMeters(nauticalMiles: Int): Int = nauticalMiles * ((2 * PI * MEAN_EARTH_RADIUS) / (360 * 60)).roundToInt() | |
| fun toNauticalMiles(meters: Int): Double = meters.toDouble() / ((2 * PI * MEAN_EARTH_RADIUS) / (360 * 60)).roundToInt() |
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