public override double?[] GetUnits(int startFiscalYear, int months,
TimeInvariantInputDTO timeInvariantData, IReadOnlyList <TimeVariantInputDTO> timeVariantData)
{
var answers = timeVariantData.FirstOrDefault();
double estimatedDesignLife = timeInvariantData.Design_32_Life;
TimeVariantLocalConditionDTO localTimeInvariantData =
new TimeVariantLocalConditionDTO(answers.Condition, answers.TimePeriod);
/*IReadOnly*/ List <TimeVariantLocalConditionDTO> localTimeInvariantDataList
= new List <TimeVariantLocalConditionDTO>();
localTimeInvariantDataList.Add(localTimeInvariantData);
// A generic end of life condition decay curve, generated based on the design life entered by user.
XYCurveDTO conditionDecayCurve = HelperFunctions.GenericEndOfLifeModel.constructConditionDecayCurve(estimatedDesignLife);
// From Zeus v18
var monthlyConditionScores = MonthlyConditionScores <TimeVariantLocalConditionDTO>(
startFiscalYear,
months,
null, // assetInServiceDate
localTimeInvariantDataList,
conditionDecayCurve,
x => x.ConditionScoreLocal);
return(monthlyConditionScores);
}
public override double?[] GetUnits(int startFiscalYear, int months,
TimeInvariantInputDTO timeInvariantData, IReadOnlyList <TimeVariantInputDTO> timeVariantData)
{
// TODO: Pass this as a value measure
var answers = timeVariantData.FirstOrDefault();
double estimatedDesignLife = timeInvariantData.Design_32_Life;
CL.FormulaHelper.DTOs.TimePeriodDTO timePeriod = new CL.FormulaHelper.DTOs.TimePeriodDTO();
var endOfSpendMonthOffset = FormulaBase.FindEndOfSpendMonth(timeInvariantData.InvestmentSpendByAccountType);
if (!endOfSpendMonthOffset.HasValue)
{
return(null);
}
timePeriod.StartTime = FormulaBase.GetCalendarDateTime(startFiscalYear, fiscalPeriod: 1)
.AddMonths(endOfSpendMonthOffset.Value + 1); // + 1 because the benefit starts in the first month after end of spend.
TimeVariantLocalConditionDTO localTimeInvariantData =
new TimeVariantLocalConditionDTO(answers.Condition, timePeriod);
List <TimeVariantLocalConditionDTO> localTimeInvariantDataList
= new List <TimeVariantLocalConditionDTO>();
localTimeInvariantDataList.Add(localTimeInvariantData);
// A generic end of life condition decay curve, generated based on the design life entered by user.
XYCurveDTO conditionDecayCurve = HelperFunctions.GenericEndOfLifeModel.constructConditionDecayCurve(estimatedDesignLife);
return(InterpolateCurve <TimeVariantLocalConditionDTO>(localTimeInvariantDataList,
startFiscalYear,
months,
conditionDecayCurve,
x => x.ConditionScoreLocal));
}
public static XYCurveDTO constructGenericEndOfLifePofCurve()
{
// Construct a generic end of life condition to failure curve.
int numPoints = 11;
double mAHI =
(CustomerConstants.BestConditionScore + CustomerConstants.WorstConditionScore) / 2.0;
// Midpoint Of AHI Scale, aka mAHI, aka m
double theta = 0.463; // Convexity Of Curve
double curveBias = 0.22; // (s)
XYCurveDTO eomConditionToFailureCurve = new XYCurveDTO();
// eomConditionToFailureCurve.Id
// eomConditionToFailureCurve.Name
// eomConditionToFailureCurve.CurveType
CurvePointDTO[] points = new CurvePointDTO[numPoints];
for (int i = 0; i < numPoints; i++)
{
points[i] = new CurvePointDTO();
points[i].X = // Condition
CustomerConstants.WorstConditionScore +
i * (CustomerConstants.BestConditionScore - CustomerConstants.WorstConditionScore) / (numPoints - 1);
points[i].Y = // PoF
Math.Exp(mAHI) /
(1 + Math.Exp(mAHI + curveBias + theta * points[i].X));
}
eomConditionToFailureCurve.Points = points;
return(eomConditionToFailureCurve);
}
/// <summary>
/// // Construct a generic end of life condition decay curve, based on the design life entered by the user.
/// </summary>
/// <param name="estimatedDesignLife">Asset's estimated design life in years</param>
/// <returns>Generated condition decay curve</returns>
public static XYCurveDTO constructConditionDecayCurve(double estimatedDesignLife)
{
XYCurveDTO conditionDecayCurve = new XYCurveDTO();
CurvePointDTO[] points = new CurvePointDTO[3];
points[0] = new CurvePointDTO();
points[0].X = 0;
points[0].Y = 10.0; // - - - - - - - - - - -> When brand new, the asset is in perfect condition
points[1] = new CurvePointDTO();
points[1].X = estimatedDesignLife; // - - - -> When at its design life, the asset has a condition of 3
points[1].Y = 3.0;
points[2] = new CurvePointDTO();
points[2].X = estimatedDesignLife / 0.7; // -> When past its design life (assuming linear degradation), Design Life/0.7 corresponds to a condition of 0
points[2].Y = 0.0;
conditionDecayCurve.Points = points;
return(conditionDecayCurve);
}
public override double?[] GetUnits(int startFiscalYear, int months,
TimeInvariantInputDTO timeInvariantData, IReadOnlyList <TimeVariantInputDTO> timeVariantData)
{
var estimatedDesignLifeMeasure = timeInvariantData.Transmission_32_Station_32_Equipment_32_Risk_Transmission_32_Station_32__45__32_Design_32_Life_ConsqUnitOutput_B;
if (estimatedDesignLifeMeasure == null)
{
return(null);
}
double estimatedDesignLife = estimatedDesignLifeMeasure[0].Value;
double defaultOutcomeCondition = 10.0;
TimePeriodDTO timePeriod = new TimePeriodDTO();
var endOfSpendMonthOffset = FindEndOfSpendMonth(timeInvariantData.InvestmentSpendByAccountType);
if (!endOfSpendMonthOffset.HasValue)
{
return(null);
}
timePeriod.StartTime = GetCalendarDateTime(startFiscalYear, fiscalPeriod: 1)
.AddMonths(endOfSpendMonthOffset.Value + 1); // + 1 because the benefit starts in the first month after end of spend.
TimeVariantLocalConditionDTO localTimeInvariantData =
new TimeVariantLocalConditionDTO(defaultOutcomeCondition, timePeriod);
List <TimeVariantLocalConditionDTO> localTimeInvariantDataList
= new List <TimeVariantLocalConditionDTO>();
localTimeInvariantDataList.Add(localTimeInvariantData);
// A generic end of life condition decay curve, generated based on the design life entered by user.
XYCurveDTO conditionDecayCurve = HelperFunctions.GenericEndOfLifeModel.constructConditionDecayCurve(estimatedDesignLife);
return(InterpolateCurve <TimeVariantLocalConditionDTO>(localTimeInvariantDataList,
startFiscalYear,
months,
conditionDecayCurve,
x => x.ConditionScoreLocal));
}
