/// <summary>
/// Creates a <see cref="BalancedFieldLengthOutput"/> based on <see cref="AggregatedDistanceOutput"/>.
/// </summary>
/// <param name="outputs">The collection of <see cref="AggregatedDistanceOutput"/>
/// to create the output for.</param>
/// <returns>A <see cref="BalancedFieldLengthOutput"/>.</returns>
/// <exception cref="ArgumentNullException">Thrown when <paramref name="outputs"/> is <c>null</c>.</exception>
/// <exception cref="KernelCalculationException">Thrown when <see cref="BalancedFieldLengthOutput"/>
/// could not be calculated.</exception>
public static BalancedFieldLengthOutput Create(IEnumerable <AggregatedDistanceOutput> outputs)
{
if (outputs == null)
{
throw new ArgumentNullException(nameof(outputs));
}
try
{
KernelBalancedFieldLengthOutput output = BalancedFieldLengthCalculator.CalculateBalancedFieldLength(outputs);
return(new BalancedFieldLengthOutput(output.Velocity, output.Distance));
}
catch (ArgumentException e)
{
throw new KernelCalculationException(e.Message, e);
}
}
public void GivenKernel_WhenCalculationsAreMadeForVelocityRange_ThenReturnsExpectedOutputsAndBalancedFieldLength(AircraftData aircraftData,
IntegrationReferenceData integrationReferenceData)
{
// Given
var integrator = new EulerIntegrator();
var calculationKernel = new AggregatedDistanceCalculatorKernel();
// When
var outputs = new List <AggregatedDistanceOutput>();
for (int i = 0; i < 90; i++)
{
var calculationSettings = new CalculationSettings(i, maximumTimeSteps, timeStep);
AggregatedDistanceOutput result = calculationKernel.Calculate(aircraftData,
integrator,
1,
density,
gravitationalAcceleration,
calculationSettings);
outputs.Add(result);
}
BalancedFieldLength balancedFieldLength = BalancedFieldLengthCalculator.CalculateBalancedFieldLength(outputs);
// Then
IEnumerable <ReferenceOutput> referenceOutputs = GetReferenceOutputs(integrationReferenceData.FileName);
int expectedLength = referenceOutputs.Count();
Assert.AreEqual(expectedLength, outputs.Count, "Number of reference data entries do not match with actual number of entries");
int velocity = 0;
foreach (ReferenceOutput referenceOutput in referenceOutputs)
{
Assert.AreEqual(referenceOutput.Velocity, outputs[velocity].FailureSpeed);
Assert.AreEqual(referenceOutput.ContinuedTakeOffDistance, outputs[velocity].ContinuedTakeOffDistance, tolerance);
Assert.AreEqual(referenceOutput.AbortedTakeOffDistance, outputs[velocity].AbortedTakeOffDistance, tolerance);
velocity++;
}
Assert.AreEqual(integrationReferenceData.Velocity, balancedFieldLength.Velocity, tolerance);
Assert.AreEqual(integrationReferenceData.Distance, balancedFieldLength.Distance, tolerance);
}