Distance for latitude and longitude - CSharp System

CSharp examples for System:Math Geometry

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Description

Distance for latitude and longitude

Demo Code


using System;/*from ww  w. ja  va2s .co  m*/

public class Main{
        public static double Distance(double latitude1, double longitude1, double latitude2, double longitude2)
        {
            var theta = longitude1 - longitude2;
            var distance = Math.Sin(DegreesToRadians(latitude1)) * Math.Sin(DegreesToRadians(latitude2)) + 
                           Math.Cos(DegreesToRadians(latitude1)) * Math.Cos(DegreesToRadians(latitude2)) * Math.Cos(DegreesToRadians(theta));

            distance = Math.Acos(distance);
            distance = RadiansToDegrees(distance);

            return distance * 60 * 1.853159616;
        }
        private static double DegreesToRadians(double degrees)
        {
            return degrees * Math.PI / 180.0;
        }
}

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