private async void UpdateHits(Report newReport) { Event _event = newReport.Event; var hits = _event.Hits; // var hits = await _dal.GetHits(h => h.Event.Id == _event.Id); //chsck if have real location /* if (hits.Count > 0 && hits.All(h => h.RealLatitude > 0)) * { * _event.Reports.Add(newReport); * return; * }*/ //remove the last approximate hits foreach (var explotion in hits.ToArray()) { _dal.RemoveHit(explotion.Id); } //_event.Reports = await _dal.GetReportsAsync((report => report.Event.Id == _event.Id)); _event.Reports.Add(newReport); int averageHits = (int)_event.Reports.Average(r => r.NumOfHits); KMeans kMeans = new KMeans(_event.Reports, averageHits); List <GeoCoordinate> clusters = kMeans.K_Means(); foreach (GeoCoordinate g in clusters) { Hit h = new Hit { ApproxLatitude = g.Latitude, ApproxLongitude = g.Longitude, Event = _event }; await _dal.AddHitAsync(h); } }