DistanceCalculationsUtils

DistanceCalculationsUtils.txt

object DistanceCalculations {

    fun CalculationByDistance(StartP: LatLng, EndP: LatLng): Double {
        val Radius = 6371 // radius of earth in Km
        val lat1 = StartP.latitude
        val lat2 = EndP.latitude
        val lon1 = StartP.longitude
        val lon2 = EndP.longitude
        val dLat = Math.toRadians(lat2 - lat1)
        val dLon = Math.toRadians(lon2 - lon1)
        val a = (Math.sin(dLat / 2) * Math.sin(dLat / 2)
                + (Math.cos(Math.toRadians(lat1))
                * Math.cos(Math.toRadians(lat2)) * Math.sin(dLon / 2)
                * Math.sin(dLon / 2)))
        val c = 2 * Math.asin(Math.sqrt(a))
        val valueResult = Radius * c
        val km = valueResult / 1
        val newFormat = DecimalFormat("####")
        val kmInDec = Integer.valueOf(newFormat.format(km))
        val meter = valueResult % 1000
        val meterInDec = Integer.valueOf(newFormat.format(meter))
        Log.i("Radius Value", "" + valueResult + "   KM Value " + kmInDec
                + " Meter Value   " + meterInDec)
        return Radius * c
    }

        fun checkForArea(rad: Int, fromPosition: LatLng, toPosition: LatLng): Boolean {
            val locationA = Location("point A")
            locationA.latitude = fromPosition.latitude
            locationA.longitude = fromPosition.longitude
            val locationB = Location("point B")
            locationB.latitude = toPosition.latitude
            locationB.longitude = toPosition.longitude
            val distance = locationA.distanceTo(locationB).toInt()
            return distance / 1000 <= rad
        }

        fun checklocationInFixedarea(currentlocationlat: Double, currentlocationlong: Double, checklocationlat: Double, checklocationlong: Double, rangeinmeter: Int): Boolean {
            val results = FloatArray(1)
            Location.distanceBetween(currentlocationlat, currentlocationlong, checklocationlat, checklocationlong, results)
            val distanceInMeters = results[0]
            val isWithinrange = distanceInMeters < rangeinmeter
            return isWithinrange
        }

}