Question

我正在尝试计算两个地理点之间的距离和方位。这是我在互联网上找到的代码，但它返回不同的值。

double currentLat = 51.43376;
    double currentLng = -2.86221;

    double destLat = 51.43503; 
    double destLng = -2.86869;

    final float[] results= new float[3];
    Location.distanceBetween(currentLat, currentLng, destLat, destLng, results);
    System.out.println("GPS" + "results[0]: " + results[0]);
    System.out.println("GPS" + "results[1]: " + results[1]);
    System.out.println("GPS" + "results[2]: " + results[2]);


    Location here = new Location("Current");
    here.setLatitude(currentLat);
    here.setLatitude(currentLng);

    Location dest = new Location("Destination2");
    dest.setLatitude(destLat);
    dest.setLongitude(destLng);


    System.out.println("GPS" + "Bearing to dest: " + here.bearingTo(dest));
    System.out.println("GPS" + "Distance to dest: " + here.distanceTo(dest));

logcat：

04-13 17:46:13.056: I/System.out(1349): GPSresults[0]: 472.2533
04-13 17:46:13.056: I/System.out(1349): GPSresults[1]: -72.5882
04-13 17:46:13.066: I/System.out(1349): GPSresults[2]: -72.59327
04-13 17:46:13.066: I/System.out(1349): GPSBearing to dest: -2.2131138
04-13 17:46:13.066: I/System.out(1349): GPSDistance to dest: 6023135.0

所以任何人都可以帮助我使用这些方法并告诉我哪一个是正确的方法。谢谢

Answer 1

在您的代码中：

Location here = new Location("Current");
here.setLatitude(currentLat);
here.setLatitude(currentLng);

你设置纬度两次。更正后，它给出了绝对正确的结果。

android中两个地理点之间的距离和方位

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