public static LBSPoint WGS_84_To_BD_09(LBSPoint args_WGS_84)
{
LBSPoint gcj_02 = WGS_84_To_GCJ_02(args_WGS_84);
LBSPoint bd_09 = GCJ_02_To_BD_09(gcj_02);
return(bd_09);
}
public static LBSPoint BD_09_To_WGS_84(LBSPoint args_BD_09)
{
LBSPoint gcj_02 = BD_09_To_GCJ_02(args_BD_09);
LBSPoint wgs_84 = GCJ_02_To_WGS_84(gcj_02);
return(wgs_84);
}
/// <summary>
/// LBSInfo 构造函数
/// </summary>
/// <param name="lat">纬度</param>
/// <param name="lng">经度</param>
/// <param name="locType">经纬度类型</param>
public LBSInfo(double lat, double lng, LocationType locType = LocationType.GCJ_02)
{
LBSPoint temp = new LBSPoint(lat, lng, locType);
switch (temp.LocationType)
{
case LocationType.WGS_84:
this.WGS_84 = temp;
this.GCJ_02 = LBSUtils.WGS_84_To_GCJ_02(this.WGS_84);
this.BD_09 = LBSUtils.GCJ_02_To_BD_09(this.GCJ_02);
break;
case LocationType.GCJ_02:
this.GCJ_02 = temp;
this.WGS_84 = LBSUtils.GCJ_02_To_WGS_84(this.GCJ_02);
this.BD_09 = LBSUtils.GCJ_02_To_BD_09(this.GCJ_02);
break;
case LocationType.BD_09:
this.BD_09 = temp;
this.GCJ_02 = LBSUtils.BD_09_To_GCJ_02(this.BD_09);
this.WGS_84 = LBSUtils.GCJ_02_To_WGS_84(this.GCJ_02);
break;
}
this.IsOutOfChina = Util.LBS.LBSUtils.IsOutOfChina(this);
this.WGS_84.IsOutOfChina = this.IsOutOfChina;
this.GCJ_02.IsOutOfChina = this.IsOutOfChina;
this.BD_09.IsOutOfChina = this.IsOutOfChina;
}
public static LBSPoint GCJ_02_To_WGS_84(LBSPoint args_GCJ_02)
{
LBSPoint gps = transform(args_GCJ_02);
double lontitude = args_GCJ_02.Lng * 2 - gps.Lng;
double latitude = args_GCJ_02.Lat * 2 - gps.Lat;
return(new LBSPoint(latitude, lontitude, LocationType.WGS_84));
}
public static LBSPoint GCJ_02_To_BD_09(LBSPoint args_GCJ_02)
{
double x = args_GCJ_02.Lng;
double y = args_GCJ_02.Lat;
double z = Math.Sqrt(x * x + y * y) + 0.00002 * Math.Sin(y * bd_pi);
double theta = Math.Atan2(y, x) + 0.000003 * Math.Cos(x * bd_pi);
double bd_lon = z * Math.Cos(theta) + 0.0065;
double bd_lat = z * Math.Sin(theta) + 0.006;
return(new LBSPoint(bd_lat, bd_lon, LocationType.BD_09));
}
public static LBSPoint BD_09_To_GCJ_02(LBSPoint args_BD_09)
{
double x = args_BD_09.Lng - 0.0065;
double y = args_BD_09.Lat - 0.006;
double z = Math.Sqrt(x * x + y * y) - 0.00002 * Math.Sin(y * bd_pi);
double theta = Math.Atan2(y, x) - 0.000003 * Math.Cos(x * bd_pi);
double gg_lon = z * Math.Cos(theta);
double gg_lat = z * Math.Sin(theta);
return(new LBSPoint(gg_lat, gg_lon, LocationType.GCJ_02));
}
static LBSPoint transform(LBSPoint args)
{
double dLat = transformLat(args.Lng - 105.0, args.Lat - 35.0);
double dLon = transformLon(args.Lng - 105.0, args.Lat - 35.0);
double radLat = args.Lat / 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 mgLat = args.Lat + dLat;
double mgLon = args.Lng + dLon;
return(new LBSPoint(mgLat, mgLon));
}
