Package org.orekit.control.indirect.adjoint.cost

Class AbstractCartesianCost

java.lang.Object
org.orekit.control.indirect.adjoint.cost.AbstractCartesianCost
All Implemented Interfaces:
CartesianCost
Direct Known Subclasses:
BoundedCartesianEnergy, CartesianFlightDurationCost, CartesianFuelCost, PenalizedCartesianFuelCost, UnboundedCartesianEnergy, UnboundedCartesianEnergyNeglectingMass
public abstract class AbstractCartesianCost extends Object implements CartesianCost
Abstract class for cost with Cartesian coordinates.
Since:
13.0
Author:
Romain Serra
See Also:

  • Constructor Details

    • AbstractCartesianCost

      protected AbstractCartesianCost(String name, double massFlowRateFactor)
      Constructor.
      Parameters:
      name - name
      massFlowRateFactor - mass flow rate factor

  • Method Details

    • getAdjointDimension

      public int getAdjointDimension()
      Getter for adjoint vector dimension.
      Specified by:
      getAdjointDimension in interface CartesianCost
      Returns:
      adjoint dimension

    • getAdjointName

      public String getAdjointName()
      Getter for adjoint vector name.
      Specified by:
      getAdjointName in interface CartesianCost
      Returns:
      name

    • getMassFlowRateFactor

      public double getMassFlowRateFactor()
      Getter for mass flow rate factor. It is negated and multiplied by the thrust force magnitude to obtain the mass time derivative. The fact that it is a constant means that the exhaust speed is assumed to be independent of time.
      Specified by:
      getMassFlowRateFactor in interface CartesianCost
      Returns:
      mass flow rate factor

    • getAdjointVelocityNorm

      protected double getAdjointVelocityNorm(double[] adjointVariables)
      Computes the Euclidean norm of the adjoint velocity vector.
      Parameters:
      adjointVariables - adjoint vector
      Returns:
      norm of adjoint velocity

    • buildSwitchDetector

      protected EventDetector buildSwitchDetector(ControlSwitchFunction controlSwitchFunction, EventDetectionSettings detectionSettings)
      Build event detector for control switches.
      Parameters:
      controlSwitchFunction - switch function
      detectionSettings - event detection settings
      Returns:
      event detector
      Since:
      14.0