[转]层行列和经纬度坐标之间的相互转化方法（谷歌地图）

  /**
     * 谷歌下转换经纬度对应的层行列
     *
     * @param lon  经度
     * @param lat  维度
     * @param zoom 在第zoom层进行转换
     * @return
     */
    public static int[] GoogleLonLatToXYZ(double lon, double lat, int zoom) {
 
        double n = Math.pow(2, zoom);
        double tileX = ((lon + 180) / 360) * n;
        double tileY = (1 - (Math.log(Math.tan(Math.toRadians(lat)) + (1 / Math.cos(Math.toRadians(lat)))) / Math.PI)) / 2 * n;
 
        int[] xy = new int[2];
 
        xy[0] = (int) Math.floor(tileX);
        xy[1] = (int) Math.floor(tileY);
 
        return xy;
    }
 
    /**
     * 层行列转经纬度
     *
     * @param x
     * @param y
     * @param z
     * @return
     */
    public static double[] XYZtoLonlat(int z, int x, int y) {
 
        double n = Math.pow(2, z);
        double lon = x / n * 360.0 - 180.0;
        double lat = Math.atan(Math.sinh(Math.PI * (1 - 2 * y / n)));
        lat = lat * 180.0 / Math.PI;
        double[] lonlat = new double[2];
        lonlat[0] = lon;
        lonlat[1] = lat;
        return lonlat;
    }

int ext = (int) Math.pow(2, z);
int changeRow = ext - row - 1;