public LandingParameters(
double WeightKG,
double RwyLengthMeter,
double ElevationFT,
double HeadwindKts,
double SlopePercent,
double TempCelsius,
double QNH,
double AppSpeedIncrease,
ReverserOption Reverser,
SurfaceCondition SurfaceCondition,
int FlapsIndex,
int BrakeIndex)
{
this.WeightKG = WeightKG;
this.RwyLengthMeter = RwyLengthMeter;
this.ElevationFT = ElevationFT;
this.HeadwindKts = HeadwindKts;
this.SlopePercent = SlopePercent;
this.TempCelsius = TempCelsius;
this.QNH = QNH;
this.AppSpeedIncrease = AppSpeedIncrease;
this.Reverser = Reverser;
this.SurfaceCondition = SurfaceCondition;
this.FlapsIndex = FlapsIndex;
this.BrakeIndex = BrakeIndex;
}
/// <exception cref="InvalidUserInputException"></exception>
public LandingParameters Validate()
{
var e = elements;
double weightKg = 0.0;
double rwyLengthMeter = 0.0;
double elevationFt = 0.0;
double headwindKts = 0.0;
double slopePercent = 0.0;
double tempCelsius = 0.0;
double qnh = 0.0;
double appSpeedIncrease = 0.0;
ReverserOption reverser = default(ReverserOption);
SurfaceCondition surfaceCondition = default(SurfaceCondition);
int flapsIndex = 0;
int brakeIndex = 0;
try
{
weightKg = Convert.ToDouble(e.weight.Text);
if (e.wtUnit.SelectedIndex == 1) //LB
{
weightKg *= Constants.LbKgRatio;
}
if (weightKg < 0)
{
throw new InvalidUserInputException("Landing weight is not valid.");
}
}
catch
{
throw new InvalidUserInputException("Landing weight is not valid.");
}
try
{
rwyLengthMeter = Convert.ToDouble(e.Length.Text);
if (e.lengthUnit.SelectedIndex == 1) // FT
{
rwyLengthMeter *= Constants.FtMeterRatio;
}
if (rwyLengthMeter < 0)
{
throw new InvalidUserInputException("Runway length is not valid.");
}
}
catch
{
throw new InvalidUserInputException("Runway length is not valid.");
}
try
{
elevationFt = Convert.ToDouble(e.Elevation.Text);
if (elevationFt < -2000.0 || elevationFt > 20000.0)
{
throw new InvalidUserInputException("Runway elevation is not valid.");
}
}
catch
{
throw new InvalidUserInputException("Runway elevation is not valid.");
}
try
{
headwindKts =
Math.Cos(
Angles.ToRadian(
Convert.ToDouble(e.rwyHeading.Text) -
Convert.ToDouble(e.windDirection.Text)))
* Convert.ToDouble(e.windSpeed.Text);
}
catch
{
throw new InvalidUserInputException("Wind entry is not valid.");
}
try
{
slopePercent = Convert.ToDouble(e.slope.Text);
}
catch
{
throw new InvalidUserInputException("Runway slope is not valid.");
}
try
{
tempCelsius = Convert.ToDouble(e.oat.Text);
if (e.tempUnit.SelectedIndex == 1) // deg F
{
tempCelsius = ConversionTools.ToCelsius(tempCelsius);
}
}
catch
{
throw new InvalidUserInputException("OAT is not valid.");
}
try
{
qnh = Convert.ToDouble(e.pressure.Text);
if (e.pressureUnit.SelectedIndex == 1)
{
qnh *= 1013.0 / 29.92;
}
if (qnh <900.0 | qnh> 1100.0)
{
throw new InvalidUserInputException("Altimeter setting is not valid.");
}
}
catch
{
throw new InvalidUserInputException("Altimeter setting is not valid.");
}
try
{
appSpeedIncrease = double.Parse(e.appSpeedIncrease.Text);
}
catch
{
throw new InvalidUserInputException("APP speed increase is not valid.");
}
try
{
reverser = (ReverserOption)e.reverser.SelectedIndex;
}
catch
{
throw new InvalidUserInputException("Reverser selection is not valid.");
}
try
{
surfaceCondition = (SurfaceCondition)e.surfCond.SelectedIndex;
}
catch
{
throw new InvalidUserInputException("Surface condition is not valid.");
}
flapsIndex = e.flaps.SelectedIndex;
brakeIndex = e.brake.SelectedIndex;
return(new LandingParameters(
weightKg,
rwyLengthMeter,
elevationFt,
headwindKts,
slopePercent,
tempCelsius,
qnh,
appSpeedIncrease,
reverser,
surfaceCondition,
flapsIndex,
brakeIndex));
}
