get cardinal from yaw

gistfile1.txt

    enum CardinalDirection: String {
        case North = "North"
        case South = "South"
        case East = "East"
        case West = "West"
        case InBetween = "InBetween"
    }
    
    func getCardinalDirectionFromYaw(yaw: Double, accuracy: QuaternionAccuracy) {
        let cardinalDirection: CardinalDirection
        
        switch yaw {
        case -45 ..< 45:
            cardinalDirection = CardinalDirection.North
            
        case 45 ..< 135:
            cardinalDirection = CardinalDirection.East
            
        case 135 ..< 180:
            cardinalDirection = CardinalDirection.South
        case -180 ..< -135:
            cardinalDirection = CardinalDirection.South
            
        case -135 ..< -45:
            cardinalDirection = CardinalDirection.West
            
        default:
            cardinalDirection = CardinalDirection.InBetween
        }
        
        cardinalHeading.text = "Cardinal Heading: \(cardinalDirection.rawValue)"
    }