Java Distance Calculate distance(double x1, double y1, double x2, double y2)

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Description

distance

License

Apache License

Declaration 

public static double distance(double x1, double y1, double x2, double y2)

Method Source Code

//package com.java2s;
//License from project: Apache License 

public class Main {
    public static double distance(double x1, double y1, double x2, double y2) {
        double lat1 = Math.PI / 180.0 * x1;
        double lat2 = Math.PI / 180.0 * x2;
        double dLng = Math.PI / 180.0 * (y2 - y1);
        double R = 3958.760;

        return Math.acos(Math.sin(lat1) * Math.sin(lat2) + Math.cos(lat1) * Math.cos(lat2) * Math.cos(dLng)) * R;
    }//ww w . ja v  a2 s.c  o m
}

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