/// <summary>
/// 根据当前经纬度获取所在的城市信息
/// </summary>
/// <param name="AuthKey">授权码</param>
/// <param name="Latitude">纬度</param>
/// <param name="Longitude">经度</param>
/// <returns></returns>
public static OfficialCity GetCurrentOfficialCityByGPS(UserInfo User, float Latitude, float Longitude)
{
LogWriter.WriteLog("MemberService.GetCurrentOfficialCityByGPS:UserName="******",Latitude=" + Latitude.ToString() + ",Longitude=" + Longitude.ToString());
if (User == null)
{
return(null);
}
try
{
double mgLat, mgLon;
//转火星坐标
WGSToGCJAPI.Transform((double)Latitude, (double)Longitude, out mgLat, out mgLon);
Addr_OfficialCity city = null;
///默认根据Google地图API获取所在地
string Provname, CityName, AreaName, FullAddress;
int ret = GoogleMapAPI.latLngToChineseDistrict((float)mgLat, (float)mgLon, out Provname, out CityName, out AreaName, out FullAddress);
if (ret == 0)
{
//省
IList <Addr_OfficialCity> _lists = Addr_OfficialCityBLL.GetModelList("Name LIKE '" + Provname + "%' AND [LEVEL]=1");
if (_lists.Count > 0)
{
city = _lists[0];
//市
_lists = Addr_OfficialCityBLL.GetModelList("Name LIKE '" + CityName + "%' AND SuperID=" + city.ID.ToString() + " AND [LEVEL]=2");
if (_lists.Count > 0)
{
city = _lists[0];
//区、县
_lists = Addr_OfficialCityBLL.GetModelList("Name LIKE '" + AreaName + "%' AND SuperID=" + city.ID.ToString() + " AND [LEVEL]=3");
if (_lists.Count > 0)
{
city = _lists[0];
}
}
}
}
else
{
int cityid = GIS_OfficialCityGeoBLL.GetNearOfficialCityByLatLong(Latitude, Longitude);
city = new Addr_OfficialCityBLL(cityid).Model;
}
return(new OfficialCity(city));
}
catch (System.Exception err)
{
LogWriter.WriteLog("MemberService.GetCurrentOfficialCityByGPS Exception！UserName=" + User.UserName, err);
return(null);
}
}
/// <summary>
/// 计算经纬度的距离（米）
/// </summary>
/// <param name="latitude1">纬度1</param>
/// <param name="longitude1">经度1</param>
/// <param name="latitude2">纬度2</param>
/// <param name="longitude2">经度2</param>
/// <returns>返回两坐标间的距离(米)</returns>
public static int DistanceByLatLong(double latitude1, double longitude1, double latitude2, double longitude2)
{
return((int)GIS_OfficialCityGeoBLL.DistanceByLatLong(latitude1, longitude1, latitude2, longitude2));
}