Calculate the distance between the longitude and latitude of two coordinates (5 ways)

Catalog

summary

Mode one

Mode two

Mode three

Mode 4

1.POM Introducing third party dependencies :

2. Code :

3. Perform the operation :

4. Execution results :

Suggest

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summary

Calculate the distance between two coordinates , Don't talk much , To make up !!!!    Take it , You're welcome ....

Mode one

Arccosine calculation method

/**
     *  Earth radius , Company m
     */
    private static final double EARTH_RADIUS = 6378137;

    /**
     *  According to latitude and longitude , Calculate the distance between two points 
     *
     * @param longitude1  Longitude of the first point 
     * @param latitude1   The latitude of the first point 
     * @param longitude2  The longitude of the second point 
     * @param latitude2   The latitude of the second point 
     * @return  Return distance , Company m
     */
    public static double getDistance1(double longitude1, double latitude1, double longitude2, double latitude2) {
        //  latitude 
        double lat1 = Math.toRadians(latitude1);
        double lat2 = Math.toRadians(latitude2);
        //  longitude 
        double lng1 = Math.toRadians(longitude1);
        double lng2 = Math.toRadians(longitude2);
        //  The difference in latitude 
        double a = lat1 - lat2;
        //  Difference of longitude 
        double b = lng1 - lng2;
        //  A formula for calculating the distance between two points 
        double s = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2) +
                Math.cos(lat1) * Math.cos(lat2) * Math.pow(Math.sin(b / 2), 2)));
        //  The arc length times the radius of the earth ,  Return unit :  rice 
        s =  s * EARTH_RADIUS;
        return s;
    }

Mode two

be based on googleMap The algorithm in gets the distance between two longitudes and latitudes , Calculation precision The distance accuracy is similar to that of Google Maps .

/**
     *  Default earth radius , Equatorial radius ( Company m)
     */
    private static double EARTH_RADIUS1 = 6371000;

    /**
     *  Into radians (rad)
     */
    private static double rad(double d)
    {
        return d * Math.PI / 180.0;
    }
    /**
     * @param lon1  The accuracy of the first point 
     * @param lat1  The latitude of the first point 
     * @param lon2  Accuracy of the second point 
     * @param lat2  The latitude of the second point 
     * @return  The distance back , Company m
     * */
    public static double getDistance2(double lon1,double lat1,double lon2, double lat2) {
        double radLat1 = rad(lat1);
        double radLat2 = rad(lat2);
        double a = radLat1 - radLat2;
        double b = rad(lon1) - rad(lon2);
        double s = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2) + Math.cos(radLat1) * Math.cos(radLat2) * Math.pow(Math.sin(b / 2), 2)));
        s = s * EARTH_RADIUS1;
        s = Math.round(s * 10000) / 10000;
        return s;
    }

Mode three

Arccosine calculation method

private static final double EARTH_RADIUS11 = 6371000; //  Average radius , Company ：m; Not equatorial radius . Equator is 6378 about 
    public static double getDistance3(Double lat1,Double lng1,Double lat2,Double lng2) {
        //  Longitude and latitude （ angle ） Arc of revolution . Radians are used as parameters , By calling Math.cos and Math.sin
        double radiansAX = Math.toRadians(lng1); // A Through radian 
        double radiansAY = Math.toRadians(lat1); // A Latitude radian 
        double radiansBX = Math.toRadians(lng2); // B Through radian 
        double radiansBY = Math.toRadians(lat2); // B Latitude radian 

        //  In the formula “cosβ1cosβ2cos（α1-α2）+sinβ1sinβ2” Part of , obtain ∠AOB Of cos value 
        double cos = Math.cos(radiansAY) * Math.cos(radiansBY) * Math.cos(radiansAX - radiansBX)
                + Math.sin(radiansAY) * Math.sin(radiansBY);
//        System.out.println("cos = " + cos); //  range [-1,1]
        double acos = Math.acos(cos); //  Arccosine value 
//        System.out.println("acos = " + acos); //  range [0,π]
//        System.out.println("∠AOB = " + Math.toDegrees(acos)); //  Ball center angle   range [0,180]
        return EARTH_RADIUS11 * acos; //  final result 
    }

Mode 4

Leverage third parties jar Package calculation

1.POM Introducing third party dependencies :

<!-- Used to calculate the distance between two points -->
        <dependency>
            <groupId>org.gavaghan</groupId>
            <artifactId>geodesy</artifactId>
            <version>1.1.3</version>
        </dependency>

2. Code :

/**
     *  Calculate the distance between two longitudes and latitudes 
     * @param gpsFrom  The first longitude and latitude 
     * @param gpsTo  The second longitude and latitude 
     * @param ellipsoid  Calculation method 
     * @return  The distance back , Company m
     */
    public static double getDistanceMeter(GlobalCoordinates gpsFrom, GlobalCoordinates gpsTo, Ellipsoid ellipsoid)
    {
        // establish GeodeticCalculator, Call the calculation method , Pass in the coordinate system 、 Longitude and latitude are used to calculate distance 
        GeodeticCurve geoCurve = new GeodeticCalculator().calculateGeodeticCurve(ellipsoid, gpsFrom, gpsTo);

        return geoCurve.getEllipsoidalDistance();
    }

3. Perform the operation :

public static void main(String[] args) {
        double lon1 = 39.111111;
        double lat1 = 116.111111;
        double lon2 = 39.222222;
        double lat2 = 116.222222;

        GlobalCoordinates source = new GlobalCoordinates(lon1, lat1);
        GlobalCoordinates target = new GlobalCoordinates(lon2, lat2);

        double meter1 = getDistanceMeter(source, target, Ellipsoid.Sphere);
        double meter2 = getDistanceMeter(source, target, Ellipsoid.WGS84);

        System.out.println("Sphere Coordinate system calculation results ："+meter1 + " rice ");
        System.out.println("WGS84 Coordinate system calculation results ："+meter2 + " rice ");
    }

4. Execution results :

Sphere Coordinate system calculation results ：15633.361234640292 rice
WGS84 Coordinate system calculation results ：15632.349374386973 rice

Suggest

I passed these tests , Feedback based on the results , Feeling mode 4 Sphere The deviation of the coordinate system calculation result is relatively small .

Look forward to your triple strike , Your support is my motivation . come on. , Ape friends ！！