如何更改gps纬度和经度的特定索引

Question

我想添加实时更新 GPS 纬度和经度的索引，例如如果我有 lat,lng (18.6032,73.7910) 那么我想添加 8th 和 9th 索引，其值从 00 到 99

Answer 1

这里有一个解决方案。这是mts

原帖：https://dzone.com/articles/distance-calculation-using-3

private void distance(double lat1, double lon1,double lat2, double lon2) {
    double theta = lon1 - lon2;
    double dist = Math.sin(deg2rad(lat1)) * Math.sin(deg2rad(lat2)) + Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2)) * Math.cos(deg2rad(theta));
    dist = Math.acos(dist);
    dist = rad2deg(dist);
    this.distancia = dist * 60 * 1.1515 * 1609.344;
}


/**
 * This function converts decimal degrees to radians
 * @param deg
 * @return
 */
private static double deg2rad(double deg) {
  return (deg * Math.PI / 180.0);
}

/**
 * This function converts radians to decimal degrees 
 * @param rad
 * @return
 */
private static double rad2deg(double rad) {
  return (rad * 180.0 / Math.PI);
}