Package org.orekit.attitudes

Class AttitudesSwitcher.InstantaneousSwitch

java.lang.Object
org.orekit.attitudes.AttitudesSwitcher.InstantaneousSwitch
All Implemented Interfaces:
DetectorModifier, EventDetector, EventHandler
Enclosing class:
AttitudesSwitcher
public class AttitudesSwitcher.InstantaneousSwitch extends Object
Switch specification. Reset derivatives due to instantaneous change of attitude.

  • Method Details

    • init

      public void init(SpacecraftState s0, AbsoluteDate t)
      Initialize event detector at the start of a propagation.

      This method is called once at the start of the propagation. It may be used by the event handler to initialize some internal data if needed.

      The default implementation initializes the handler.

      Parameters:
      s0 - initial state
      t - target time for the integration

    • eventOccurred

      public Action eventOccurred(SpacecraftState s, EventDetector detector, boolean increasing)
      Handle an event.
      Parameters:
      s - SpaceCraft state to be used in the evaluation
      detector - object with appropriate type that can be used in determining correct return state
      increasing - with the event occurred in an "increasing" or "decreasing" slope direction
      Returns:
      the Action that the calling detector should pass back to the evaluation system

    • getDetector

      public EventDetector getDetector()
      Get the wrapped detector.
      Specified by:
      getDetector in interface DetectorModifier
      Returns:
      wrapped detector

    • getSwitchHandler

      protected AttitudeSwitchHandler getSwitchHandler()
      Protected getter for switch handle.
      Returns:
      switch handler

    • getFuture

      protected AttitudeProvider getFuture()
      Protected getter for future attitude provider.
      Returns:
      future provider

    • getPast

      protected AttitudeProvider getPast()
      Protected getter for past attitude provider.
      Returns:
      pas provider

    • isSwitchOnDecrease

      protected boolean isSwitchOnDecrease()
      Protected getter for switch-on-decrease flag.
      Returns:
      flag

    • isSwitchOnIncrease

      protected boolean isSwitchOnIncrease()
      Protected getter for switch-on-increase flag.
      Returns:
      flag

    • getHandler

      public EventHandler getHandler()
      Get the handler.
      Specified by:
      getHandler in interface DetectorModifier
      Specified by:
      getHandler in interface EventDetector
      Returns:
      event handler to call at event occurrences

    • resetState

      public SpacecraftState resetState(EventDetector detector, SpacecraftState oldState)
      Reset the state prior to continue propagation.

      This method is called after the step handler has returned and before the next step is started, but only when EventHandler.eventOccurred(org.orekit.propagation.SpacecraftState, org.orekit.propagation.events.EventDetector, boolean) has itself returned the Action.RESET_STATE indicator. It allows the user to reset the state for the next step, without perturbing the step handler of the finishing step. If the EventHandler.eventOccurred(org.orekit.propagation.SpacecraftState, org.orekit.propagation.events.EventDetector, boolean) never returns the Action.RESET_STATE indicator, this function will never be called, and it is safe to simply return null.

      The default implementation simply return its argument.

      Specified by:
      resetState in interface EventHandler
      Parameters:
      detector - object with appropriate type that can be used in determining correct return state
      oldState - old state
      Returns:
      new state