/// <summary>
/// Calculates the <see cref="BalancedFieldLengthOutput"/> based on <paramref name="calculation"/>.
/// </summary>
/// <param name="calculation">The <see cref="BalancedFieldLengthCalculation"/> to calculate for.</param>
/// <returns>A <see cref="BalancedFieldLengthOutput"/>.</returns>
/// <exception cref="ArgumentNullException">Thrown when <paramref name="calculation"/> is <c>null</c>.</exception>
/// <exception cref="CreateKernelDataException">Thrown when the calculation input
/// could not be created for the kernel.</exception>
/// <exception cref="KernelCalculationException">Thrown when <see cref="AggregatedDistanceOutput"/>
/// could not be calculated.</exception>
public BalancedFieldLengthOutput Calculate(BalancedFieldLengthCalculation calculation)
{
if (calculation == null)
{
throw new ArgumentNullException(nameof(calculation));
}
GeneralSimulationSettingsData generalSimulationSettings = calculation.SimulationSettings;
double density = generalSimulationSettings.Density;
int endVelocity = generalSimulationSettings.EndFailureVelocity;
double gravitationalAcceleration = generalSimulationSettings.GravitationalAcceleration;
EngineData engineData = calculation.EngineData;
int nrOfFailedEngines = engineData.NrOfFailedEngines;
AircraftData aircraftData = AircraftDataFactory.Create(calculation.AircraftData, engineData);
var integrator = new EulerIntegrator();
var outputs = new List <AggregatedDistanceOutput>();
for (int i = 0; i < endVelocity; i++)
{
var calculationInput = new CalculationInput(generalSimulationSettings,
i,
aircraftData,
integrator,
nrOfFailedEngines,
density,
gravitationalAcceleration);
AggregatedDistanceOutput output = CalculateDistances(calculationInput);
outputs.Add(output);
}
return(BalancedFieldLengthOutputFactory.Create(outputs));
}
/// <summary>
/// Validates a <see cref="BalancedFieldLengthCalculation"/>.
/// </summary>
/// <param name="calculation">The calculation to validate.</param>
/// <returns>A collection of validation messages if the validation failed, empty otherwise.</returns>
/// <exception cref="ArgumentNullException">Thrown when <paramref name="calculation"/>
/// is <c>null</c>.</exception>
public IEnumerable <string> Validate(BalancedFieldLengthCalculation calculation)
{
if (calculation == null)
{
throw new ArgumentNullException(nameof(calculation));
}
try
{
EngineData engineData = calculation.EngineData;
GeneralSimulationSettingsData generalSimulationSettings = calculation.SimulationSettings;
AircraftData aircraftData = AircraftDataFactory.Create(calculation.AircraftData, engineData);
KernelValidationError validationResult = kernel.Validate(aircraftData,
generalSimulationSettings.Density,
generalSimulationSettings.GravitationalAcceleration,
engineData.NrOfFailedEngines);
var messages = new List <string>();
if (generalSimulationSettings.EndFailureVelocity < 1)
{
messages.Add(Resources.BalancedFieldLengthCalculationModule_ValidationMessage_End_failure_velocity_must_be_larger_than_Zero);
}
if (validationResult.HasFlag(KernelValidationError.InvalidDensity))
{
messages.Add(Resources.BalancedFieldLengthCalculationModule_ValidationMessage_Invalid_Density);
}
if (validationResult.HasFlag(KernelValidationError.InvalidGravitationalAcceleration))
{
messages.Add(Resources.BalancedFieldLengthCalculationModule_ValidationMessage_Invalid_GravitationalAcceleration);
}
if (validationResult.HasFlag(KernelValidationError.InvalidNrOfFailedEngines))
{
messages.Add(Resources.BalancedFieldLengthCalculationModule_ValidationMessage_Invalid_NrOfFailedEngines);
}
return(messages);
}
catch (CreateKernelDataException e)
{
return(new[]
{
e.Message
});
}
}
public CalculationInput(GeneralSimulationSettingsData generalSimulationSettings,
int failureVelocity,
AircraftData aircraftData,
IIntegrator integrator,
int nrOfFailedEngines,
double density,
double gravitationalAcceleration)
{
GeneralSimulationSettings = generalSimulationSettings;
FailureVelocity = failureVelocity;
AircraftData = aircraftData;
Integrator = integrator;
NrOfFailedEngines = nrOfFailedEngines;
Density = density;
GravitationalAcceleration = gravitationalAcceleration;
}