Created
April 3, 2014 13:08
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| case class Coordinates(x: Double, y: Double) | |
| object HaversineDistance { | |
| def apply(a: Coordinates, b: Coordinates): Double = { | |
| val deltaLat = math.toRadians(b.x - a.x) | |
| val deltaLong = math.toRadians(b.y - a.y) | |
| val x = math.pow(math.sin(deltaLat / 2), 2) + math.cos(math.toRadians(a.x)) * math.cos(math.toRadians(b.x)) * math.pow(math.sin(deltaLong / 2), 2) | |
| val greatCircleDistance = 2 * math.atan2(math.sqrt(x), math.sqrt(1 - x)) | |
| 3958.761 * greatCircleDistance | |
| } | |
| } |
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