/// <summary>
/// Calcul de la serie E
/// </summary>
/// <param name="eSerie">Série E</param>
private string CalculateESerie(ESerie.ESeries eSerie)
{
if (ResistorValue.HasValue)
{
double temp = Resistor.Value;
int divisions = 0;
while (temp >= 10)
{
temp /= 10;
divisions++;
}
ESerie serie = ESeries.Where(x => x.Name == eSerie).Single();
double closest = serie.Values.OrderBy(item => Math.Abs(temp - item)).First();
double val = closest * Math.Pow(10, divisions);
double gap = ((Resistor.Value - val) / Resistor.Value) * 100;
int index = 0;
while (val >= 1000)
{
val /= 1000;
++index;
}
return(eSerie.ToString() + " : " + val + " " + Multiples[index].Display + " (écart : " + gap.ToString("n2") + " %)");
}
return(string.Empty);
}
/// <summary>
/// Constructeur vide par défaut
/// </summary>
public MainWindowViewModel()
{
Multiples = Multiple.GetMultiples();
Tolerances = Tolerance.GetTolerances();
TemperatureCoefficients = TemperatureCoefficient.GetTemperatureCoefficients();
ESeries = ESerie.GetESeries();
ResistorRings = ResistorRing.GetResistorRings();
Rings1 = Ring.GetRings().Where(x => x.Digit != null).OrderBy(x => x.DigitOrder).ToList();
Rings2 = Ring.GetRings().Where(x => x.Digit != null).OrderBy(x => x.DigitOrder).ToList();
Rings3 = Ring.GetRings().Where(x => x.Digit != null).OrderBy(x => x.DigitOrder).ToList();
Rings4 = Ring.GetRings().Where(x => x.Multiplicator != null).OrderBy(x => x.MultiplicatorOrder).ToList();
Rings5 = Ring.GetRings().Where(x => x.Tolerance != null).OrderBy(x => x.ToleranceOrder).ToList();
Rings6 = Ring.GetRings().Where(x => x.TemperatureCoefficient != null).OrderBy(x => x.TemperatureCoefficientOrder).ToList();
Ring blackRing = Rings1.Where(x => x.Digit == 0).Single();
List <Ring> except = new List <Ring>()
{
blackRing
};
SetRing5Color(Rings5.OrderBy(a => a.Tolerance.Index == 2).First());
SetRing1Color(Rings1.Except(except).ToList().OrderBy(a => Guid.NewGuid()).First());
SetRing2Color(Rings2.OrderBy(a => Guid.NewGuid()).First());
SetRing4Color(Rings4.OrderBy(a => Guid.NewGuid()).First());
}