public override LocationTriplet getLocationAsOf(double timeStepFraction)
{
LocationTriplet aTrip = new LocationTriplet();
// inside the array
aTrip.Altitude = Altitude.EvaluatePoly(timeStepFraction);
aTrip.Latitude = Latitude.EvaluatePoly(timeStepFraction);
aTrip.Longitude = Longitude.EvaluatePoly(timeStepFraction);
return(aTrip);
}
public override double getIntensity(Dictionary <String, Object> results, double lat, double lon, double alt, double height, DateTime asOf)
{
cachedEff = null;
if (timeArray == null)
{
timeArray = Location.Select(e => e.Time).ToArray <DateTime>();
}
int index;
double fraction;
LocationTriplet srcLocation;
if (Utilities.interpolateTimes(timeArray, asOf, out fraction, out index))
{
LocationTriplet l1, l2;
double secOffset = (asOf - Location[index].Time).TotalSeconds;
double secSpacing = (Location[index + 1].Time - Location[index].Time).TotalSeconds;
double timeStepFraction = secOffset / secSpacing;
if (Location[index].GetType() == typeof(TimeDependentAnalyticalLocation))
{
// special case
srcLocation = Location[index].getLocationAsOf(timeStepFraction);
}
else
{
// need to interpolate
l1 = Location[index].getLocationAsOf(0);
l2 = Location[index + 1].getLocationAsOf(0);
srcLocation = new LocationTriplet();
srcLocation.Altitude = l1.Altitude + (l2.Altitude - l1.Altitude) * timeStepFraction;
srcLocation.Latitude = l1.Latitude + (l2.Latitude - l1.Latitude) * timeStepFraction;
srcLocation.Longitude = l1.Longitude + (l2.Longitude - l2.Longitude) * timeStepFraction;
}
}
else
{
srcLocation = Location[index].getLocationAsOf(0);
}
// calculate distance
double distance = Utilities.distanceInMeters(lat, srcLocation.Latitude, lon, srcLocation.Longitude, alt, srcLocation.Altitude);
srcDistance = distance;
// calculate activity
double activity = Utilities.getTemporalFloat(asOf, this.Activity);
double detPhotons = activity / 4 / Math.PI / distance / distance;
// calculate efficency
foreach (InstrumentEfficiency anEff in InstrumentResponse)
{
if (results.Keys.Contains(anEff.InstrumentRef))
{
// we care about this instrument
double[] effValues = anEff.getEffAsOf(asOf, height);
Instrument anInst = XSimFieldLibraryImpl.GetInstrumentByID(anEff.InstrumentRef);
if (anInst is ScalarInst)
{
double eff = effValues[0];
double srcValue = detPhotons * eff;
double currValue = (Double)results[anEff.InstrumentRef];
currValue += srcValue;
results[anEff.InstrumentRef] = currValue;
}
else
{
// spectral instrument
long[] spectra = (long[])results[anEff.InstrumentRef];
for (int i = 0; i < spectra.Length; i++)
{
long srcValue = (long)Math.Round(detPhotons * effValues[i]);
spectra[i] += srcValue;
}
results[anEff.InstrumentRef] = spectra;
}
}
}
return(detPhotons);
}
