/// <summary>
/// 根据用户位置，区域，菜品，获取周围5千米以内的骑手位置信息
///
/// </summary>
/// <param name="foodId"></param>
/// <param name="lat"></param>
/// <param name="lng"></param>
/// <param name="areaId"></param>
/// <returns></returns>
public int[] GetRiderIdsByFoodId_Position(int foodId, decimal lat, decimal lng, int areaId)
{
var list = CacheHelper.GetByCondition <RiderStockJoin>("RiderStockJoin", " riderstatus=1 and riderAreaId=" + areaId + " and foodId=" + foodId);
int[] riderIds = list.Select(p => (int)p.riderId).Distinct().ToArray();
List <int> r = new List <int>();
foreach (var item in riderIds)
{
RiderPosition rp = CacheHelper.GetRiderPosition(item);
var lat1 = Convert.ToDouble(lat);
var lng1 = Convert.ToDouble(lng);
var lat2 = Convert.ToDouble(rp.lat);
var lng2 = Convert.ToDouble(rp.lng);
if (DistanceHelperHere.Distance(lat1, lng1, lat2, lng2) < 5)
{
r.Add(item);
}
}
return(r.ToArray());
}
/// <summary>
/// 计算骑手和目的地的距离
/// </summary>
/// <param name="riderId"></param>
/// <param name="userAddressId"></param>
/// <returns></returns>
public decimal GetDistance(int riderId, int userAddressId, string lat, string lng)
{
var list = CacheHelper.GetByCondition <UserAddressView>("UserAddressView", " id=" + userAddressId);
var ua = list.First();
var lat1 = 0d;
var lng1 = 0d;
var lat2 = 0d;
var lng2 = 0d;
if (ua.riderType != 2)
{
RiderPosition rp = CacheHelper.GetRiderPosition(riderId);
if (rp == null)
{
return(0);
}
lat1 = Convert.ToDouble(rp.lat);
lng1 = Convert.ToDouble(rp.lng);
lat2 = Convert.ToDouble(ua.lat);
lng2 = Convert.ToDouble(ua.lng);
}
else
{
lat1 = Convert.ToDouble(ua.lat);
lng1 = Convert.ToDouble(ua.lng);
lat2 = Convert.ToDouble(lat);
lng2 = Convert.ToDouble(lng);
}
var r = DistanceHelperHere.Distance(lat1, lng1, lat2, lng2);
var r2 = r.ToString("#0.0");
return(Convert.ToDecimal(r2));
}