public Task <VariogramModule.IVariogram> GetSpatialVariogramAsync(LinearCombination.RealValueNodes nodes)
{
var task = taskFactory.StartNew(new Func <object, VariogramModule.IVariogram>(obj =>
{
Stopwatch sw = Stopwatch.StartNew();
LinearCombination.RealValueNodes localNodes = (LinearCombination.RealValueNodes)obj;
var variogramFitter = new LMDotNetVariogramFitter.Fitter() as VariogramModule.IVariogramFitter;
traceSource.TraceEvent(TraceEventType.Start, 1, "Starting build of emperical variogram");
var pointSet = new EmpVariogramBuilder.PointSet(localNodes.Lats, localNodes.Lons, localNodes.Values);
var dist = FuncConvert.ToFSharpFunc(new Converter <Tuple <double, double>, FSharpFunc <Tuple <double, double>, double> >(t1 =>
FuncConvert.ToFSharpFunc(new Converter <Tuple <double, double>, double>(t2 => SphereMath.GetDistance(t1.Item1, t1.Item2, t2.Item1, t2.Item2)))));
var empVar = EmpVariogramBuilder.EmpiricalVariogramBuilder.BuildEmpiricalVariogram(pointSet, dist);
sw.Stop();
traceSource.TraceEvent(TraceEventType.Stop, 1, string.Format("Emperical variogram is build in {0}", sw.Elapsed));
sw = Stopwatch.StartNew();
traceSource.TraceEvent(TraceEventType.Start, 2, "Starting variogram fitting");
var variogramRes = variogramFitter.Fit(empVar);
sw.Stop();
traceSource.TraceEvent(TraceEventType.Stop, 2, string.Format("Emperical variogram is build in {0}", sw.Elapsed));
if (FSharpOption <VariogramModule.IDescribedVariogram> .get_IsNone(variogramRes))
{
traceSource.TraceEvent(TraceEventType.Error, 3, "Fariogram fitting failed. Falling back to coarse variogram approximation");
return(variogramFitter.GetFallback(empVar));
}
else
{
return(variogramRes.Value);
}
}), nodes);
return(task);
}
public Task <VariogramModule.IVariogram> GetSpatialVariogramAsync(LinearCombination.RealValueNodes nodes)
{
return(component.GetAsync(nodes));
}