aircraftFuelConsumptionModel.h

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/*******************************************************************************
** Copyright (c) 2018 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/


#pragma once

#include "vrfutil/vrfutilDefines.h"
#include "vrfutil/rwAircraftEngineEfficiency.h"

#include <vector>


class DT_DLL_vrfutil DtAircraftFuelConsumptionModel
{
public:
   static DtAircraftFuelConsumptionModel* Create(
      const DtRwAircraftEngineEfficiencyDataPointList& datapoints);

   DtAircraftFuelConsumptionModel();

   virtual ~DtAircraftFuelConsumptionModel();

   virtual bool isValid() const;

   virtual bool addDataPoints(
      const DtRwAircraftEngineEfficiencyDataPointList& datapoints,
      double startMass, double endMass,
      std::ostream* errorStream = 0) = 0;

   virtual double calculateEfficiency(
      double range, double speed, double startMass, double endMass) const;

   virtual double calculateRange(
      double speed, double altitude, double startMass, double endMass) const;

   virtual double interpolateEfficiency(double speed, double altitude) const = 0;

   virtual double fuelConsumed(
      double range, double speed, double altitude, double mass) const;

   virtual bool shouldConsumeFuel() const;

   virtual void setShouldConsumeFuel(bool shouldConsume);

protected:

   bool myShouldConsumeFuel;
};

class DT_DLL_vrfutil DtNoFuelUsageAircraftFuelConsumptionModel
   : public DtAircraftFuelConsumptionModel
{
public:
   virtual bool addDataPoints(const DtRwAircraftEngineEfficiencyDataPointList& datapoints,
      double startWeight, double endWeight,
      std::ostream* errorStream = 0);

   virtual double interpolateEfficiency(double speed, double altitude) const;

   virtual double fuelConsumed(double range, double speed, double altitude, double mass) const;

   virtual double calculateRange(
      double speed, double altitude, double startMass, double endMass) const;

   virtual bool shouldConsumeFuel() const;
};

class DT_DLL_vrfutil DtConstantAircraftFuelConsumptionModel : public DtAircraftFuelConsumptionModel
{
public:
   DtConstantAircraftFuelConsumptionModel();

   bool isValid() const;

   virtual bool addDataPoints(const DtRwAircraftEngineEfficiencyDataPointList& datapoints,
      double startWeight, double endWeight,
      std::ostream* errorStream = 0);

   virtual double interpolateEfficiency(double speed, double altitude) const;

protected:
   double myEfficiency;
};

class DT_DLL_vrfutil DtBilinearInterpolationAircraftFuelConsumptionModel
   : public DtAircraftFuelConsumptionModel
{
public:
   DtBilinearInterpolationAircraftFuelConsumptionModel();

   virtual bool isValid() const;

   virtual bool addDataPoints(const DtRwAircraftEngineEfficiencyDataPointList& datapoints,
      double startWeight, double endWeight,
      std::ostream* errorStream = 0);

   virtual double interpolateEfficiency(double speed, double altitude) const;

protected:
   double myGridPoints[2][2];

   double myMinAltitude, myMaxAltitude;
   double myMinSpeed, myMaxSpeed;
   double myXDYD;

   bool myValidFlag;
};