+(CLLocationCoordinate2D) GCJ02ToBd09:(CLLocationCoordinate2D) gcj{
const double x_pi = 3.14159265358979324 * 3000.0 / 180.0;
double x = gcj.longitude, y = gcj.latitude;
double z = sqrt(x * x + y * y) + 0.00002 * sin(y * x_pi);
double theta = atan2(y, x) + 0.000003 * cos(x * x_pi);
double lon = z * cos(theta) + 0.0065;
double lat = z * sin(theta) + 0.006;
return CLLocationCoordinate2DMake(lat, lon);
}
+(CLLocationCoordinate2D) Bd09ToGCJ02:(CLLocationCoordinate2D )bd
{
const
double x_pi = 3.14159265358979324 * 3000.0 / 180.0;
double x = bd.longitude - 0.0065, y = bd.latitude - 0.006;
double z = sqrt(x * x + y * y) - 0.00002 * sin(y * x_pi);
double theta = atan2(y, x) - 0.000003 * cos(x * x_pi);
CLLocationCoordinate2D reslt = CLLocationCoordinate2DMake(z * sin(theta), z * cos(theta));
return reslt;
}
