Conversion between Baidu map coordinate system and Mars coordinate system

Baidu turns to Mars

-(Cllocationcoordinate2d) Hhtrans_gcgps: (cllocationcoordinate2d) Baidugps

{

Cllocationcoordinate2d Googlegps;

Double bd_x=baidugps.longitude-0.0065;

Double bd_y=baidugps.latitude-0.006;

Double z = sqrt (bd_x * bd_x + bd_y * bd_y)-0.00002 * sin (bd_y * m_pi);

Double theta = atan2 (bd_y, bd_x)-0.000003 * cos (bd_x * m_pi);

Googlegps.longitude = z * cos (theta);

Googlegps.latitude = z * sin (theta);

return GOOGLEGPS;

}

Other coordinates go to Baidu coordinate system

Cllocationcoordinate2d test = Cllocationcoordinate2dmake (Location.coordinate.latitude, Location.coordinate.longitude);

Convert Google Maps, Soso maps, Aliyun maps, MAPABC maps, and AMAP map coordinates to Baidu coordinates

nsdictionary* testdic = Bmkconvertbaiducoorfrom (Test,bmk_coordtype_common);

Convert GPS coordinates to Baidu coordinates

Testdic = Bmkconvertbaiducoorfrom (TEST,BMK_COORDTYPE_GPS);

NSLog (@ "x=%f,y=%f", location.coordinate.latitude,location.coordinate.longitude);

NSLog (@ "x=%@,y=%@", [Testdic objectforkey:@ "x"],[testdic objectforkey:@ "y"]);

NSString *lat = [mcencryption base64frombase64string:[testdic objectforkey:@ "x"]];

NSString *lon = [mcencryption base64frombase64string:[testdic objectforkey:@ "y"]];

Conversion between Baidu map coordinate system and Mars coordinate system