maidenhead/data.go at main · logocomune/maidenhead · GitHub

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package maidenhead

const (
	latSouthPole         = 90.0
	lngEastwardGreenwich = 180.0

	lngFieldWidth             = 20.0
	lngSquareWidth            = 2.0
	lngSubSquareWidth         = 1 / 12.0
	lngExtendedSquareWidth    = 1 / 120.0
	lngSubExtendedSquareWidth = 1 / 2880.0

	latFieldWidth             = lngFieldWidth / 2
	latSquareWidth            = lngSquareWidth / 2
	latSubSquareWidth         = lngSubSquareWidth / 2
	latExtendedSquareWidth    = lngExtendedSquareWidth / 2
	latSubExtendedSquareWidth = lngSubExtendedSquareWidth / 2

	maxSteps = 5

	FieldPrecision             = 2
	SquarePrecision            = 4
	SubSquarePrecision         = 6
	ExtendedSquarePrecision    = 8
	SubExtendedSquarePrecision = 10

	alphabetSize = 24
)

var latDivider = [5]float64{latFieldWidth, latSquareWidth, latSubSquareWidth, latExtendedSquareWidth, latSubExtendedSquareWidth}

var lngDivider = [5]float64{lngFieldWidth, lngSquareWidth, lngSubSquareWidth, lngExtendedSquareWidth, lngSubExtendedSquareWidth}

var alphabet = [alphabetSize]byte{
	'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
	'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
}

var digits = [10]byte{'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'}