这是百度地图的摩卡托坐标与火星坐标的相互转换方法，大家参考使用吧

复制代码 代码如下:

/**

* 百度摩卡拖坐标与火星坐标的加密解密算法

* @author XFan

*

*/

public class Outer {

private static double lat = 31.22997;

private static double lon = 121.640756;

public static double x_pi = lat * lon / 180.0;

public static void main(String[] args) {

System.out.println("摩卡坐标经纬度:"+lat+","+lon);

System.out.println("火星坐标经纬度:"+bd_decrypt(lat,lon));

}

//解密成为火星坐标

public static String bd_decrypt(double bd_lat, double bd_lon)

{

double x = bd_lon - 0.0065, y = bd_lat - 0.006;

double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi);

double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);

double gg_lon = z * Math.cos(theta);

double gg_lat = z * Math.sin(theta);

return gg_lat+","+gg_lon;

}

//加密成为摩卡托坐标

public static String bd_encrypt(double gg_lat, double gg_lon)

{

double x = gg_lon, y = gg_lat;

double z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);

double theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);

double bd_lon = z * Math.cos(theta) + 0.0065;

double bd_lat = z * Math.sin(theta) + 0.006;

return gg_lat+","+gg_lon;

}

}