Coordinate conversion of Baidu map and gold map

In the project development, the vehicle uses the Baidu map to preach the GPS coordinates, the web uses the gold map, the problem comes: in the IOS10 version above, the German positioning API call failed. Instead of Baidu map can be replaced by Baidu map, so long need for coordinate conversion, online find the conversion method
JavaScript implementation of geo-coordinate system and correlative algorithm of electronic map

The following direct code:
Mars coordinates convert to Baidu map coordinates

function Bd_encrypt (Gg_lon, Gg_lat) {
var x_pi = Math.PI * 3000.0/180.0;
var x = Gg_lon, y = Gg_lat;
var z = math.sqrt (x * x + y * y) + 0.00002 * Math.sin (y * x_pi);
var theta = math.atan2 (y, x) + 0.000003 * MATH.COS (x * x_pi);
var Bd_lon = z * Math.Cos (theta) + 0.0065;
var Bd_lat = z * Math.sin (theta) + 0.006;
return {
Bd_lat:bd_lat,
Bd_lon:bd_lon
};
}
Baidu map coordinates converted to Mars coordinates
JS Code Collection Code
function Bd_decrypt (Bd_lon,bd_lat) {
var x_pi = Math.PI * 3000.0/180.0;
var x = bd_lon-0.0065;
var y = bd_lat-0.006;
var z = math.sqrt (x * x + y * y)-0.00002 * Math.sin (y * x_pi);
var theta = math.atan2 (y, x)-0.000003 * MATH.COS (x * x_pi);
var Gg_lon = z * Math.Cos (theta);
var Gg_lat = z * Math.sin (theta);
return {
Gg_lon:gg_lon,
Gg_lat:gg_lat
}
}