BasicMultiTrajectoryState.h

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#ifndef BasicMultiTrajectoryState_H
#define BasicMultiTrajectoryState_H

#include "TrackingTools/TrajectoryState/interface/BasicTrajectoryState.h"
#include "TrackingTools/TrajectoryState/interface/FreeTrajectoryState.h"
#include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h"
#include "FWCore/Utilities/interface/Exception.h"

class BasicMultiTrajectoryState final : public BasicTrajectoryState {
  typedef TrajectoryStateOnSurface TSOS;

public:
  explicit BasicMultiTrajectoryState(const std::vector<TSOS>& tsvec);

  BasicMultiTrajectoryState() {}

  void rescaleError(double factor);

  pointer clone() const override { return build<BasicMultiTrajectoryState>(*this); }

  using Components = BasicTrajectoryState::Components;
  Components const& components() const override { return theStates; }
  bool singleState() const override { return false; }

  bool canUpdateLocalParameters() const override { return false; }
  void update(const LocalTrajectoryParameters& p,
              const Surface& aSurface,
              const MagneticField* field,
              const SurfaceSide side) override;

  void update(double weight,
              const LocalTrajectoryParameters& p,
              const LocalTrajectoryError& err,
              const Surface& aSurface,
              const MagneticField* field,
              const SurfaceSide side) override;

private:
  Components theStates;

  void combine() dso_internal;
};

#endif