public ActionResult GetGuangDongAirQualityPNG()
{
List <double> t = new List <double>(), x = new List <double>(), y = new List <double>();
double[] extent = new double[] { 109.46, 20.05, 117.48, 25.63 };
string fileName;
using (DataCenterServiceClient client = new DataCenterServiceClient())
{
StationHourData[] data = client.GetStationHourDataListFromHistoryByTime("GDAEIB", "2019!@GD", new DateTime(2020, 6, 23, 17, 0, 0));
data = data.Where(o => o.AQI != "—").ToArray();
double[] tExtent = new double[] { 106.79, 18.19, 120.15, 27.49 };
foreach (StationHourData item in data)
{
double xi = double.Parse(item.Longitude), yi = double.Parse(item.Latitude);
if (xi >= tExtent[0] && xi <= tExtent[2] && yi >= tExtent[1] && yi <= tExtent[3])
{
double ti = double.Parse(item.AQI);
t.Add(ti);
x.Add(xi);
y.Add(yi);
}
}
fileName = string.Format("D:\\440000_{0}.png", data.First().TimePoint.ToString("yyyyMMddHH"));
}
double resolution = (extent[2] - extent[0]) / 1023;
BitmapHelper.DrawGridByKriging(t.ToArray(), x.ToArray(), y.ToArray(), extent, resolution, fileName);
return(Content("Done"));
}
public ActionResult TestIDW(DateTime time)
{
IDW idw;
Kriging kriging;
using (DataCenterServiceClient client = new DataCenterServiceClient())
{
StationHourData[] data = client.GetStationHourDataListFromHistoryByTime("GDAEIB", "2019!@GD", time);
data = data.Where(o => o.AQI != "—").ToArray();
double[] X = new double[data.Length], Y = new double[data.Length], T = new double[data.Length];
for (int i = 0; i < data.Length; i++)
{
StationHourData item = data[i];
double x = double.Parse(item.Longitude), y = double.Parse(item.Latitude);
double t = double.Parse(item.AQI);
X[i] = x;
Y[i] = y;
T[i] = t;
}
idw = new IDW(X, Y, T);
kriging = new Kriging(X, Y, T);
}
double temp = idw.Predict(112, 36);
kriging.Train(KrigingModel.Exponential, 0, 100);
temp = kriging.Predict(112, 36);
return(Content(temp.ToString()));
}
public ActionResult GetStationHourData()
{
using (DataCenterServiceClient client = new DataCenterServiceClient())
{
StationHourData[] stationHourData = client.GetStationHourDataListFromHistoryByTime("normal", "normal!@123", new DateTime(2020, 6, 11, 10, 0, 0));
return(Json(stationHourData, JsonRequestBehavior.AllowGet));
}
}
public ActionResult GetStationHourData(DateTime timePoint)
{
using (DataCenterServiceClient client = new DataCenterServiceClient())
{
StationHourData[] data = client.GetStationHourDataListFromHistoryByTime("GDAEIB", "2019!@GD", timePoint);
data = data.Where(o => o.AQI != "—").ToArray();
return(Json(data, JsonRequestBehavior.AllowGet));
}
}