Google Maps Baidu map coordinates of the mutual turn

/**   * 地图坐标转换 google,baidu,gps   * @author lw   * @Time 2015年4月16日18:19:16   *   * */ public class CoordinateConversion {      private static final double x_pi = 3.14159265358979324 * 3000.0 / 180.0 ;           private static final double pi = 3.14159265358979324 ;      private static final double a = 6378245.0 ;      private static final double ee = 0.00669342162296594323 ;           /**       * gg_lat 纬度       * gg_lon 经度       * GCJ-02转换BD-09       * Google地图经纬度转百度地图经纬度       * */      public static Point google_bd_encrypt( double gg_lat, double gg_lon){          Point point= new Point();          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 ;          point.setLat(bd_lat);          point.setLng(bd_lon);          return point;      }           /**       * wgLat 纬度       * wgLon 经度       * BD-09转换GCJ-02       * 百度转google       * */      public static Point bd_google_encrypt( double bd_lat, double bd_lon){          Point point= new Point();          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);           point.setLat(gg_lat);          point.setLng(gg_lon);          return point;      }                     /**       * wgLat 纬度       * wgLon 经度       * WGS-84 到 GCJ-02 的转换（即 GPS 加偏）       * */      public static Point wgs_gcj_encrypts( double wgLat, double wgLon) {          Point point= new Point();          if (outOfChina(wgLat, wgLon)) {              point.setLat(wgLat);              point.setLng(wgLon);              return point;          }          double dLat = transformLat(wgLon - 105.0 , wgLat - 35.0 );          double dLon = transformLon(wgLon - 105.0 , wgLat - 35.0 );          double radLat = wgLat / 180.0 * pi;          double magic = Math.sin(radLat);          magic = 1 - ee * magic * magic;          double sqrtMagic = Math.sqrt(magic);          dLat = (dLat * 180.0 ) / ((a * ( 1 - ee)) / (magic * sqrtMagic) * pi);          dLon = (dLon * 180.0 ) / (a / sqrtMagic * Math.cos(radLat) * pi);          double lat = wgLat + dLat;          double lon = wgLon + dLon;          point.setLat(lat);          point.setLng(lon);          return point;      }Non-personal original original Http://my.oschina.net/Thinkeryjgfn/blog/402565?fromerr=iCgT0WCK

Google Maps Baidu map coordinates of the mutual turn