MultiComponentStateOnSurface.h

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/*
  Copyright (C) 2002-2023 CERN for the benefit of the ATLAS collaboration
*/
 
/*******************************************************************************
            MultiComponentStateOnSurface.h  -  description
            -----------------------------------------------
begin                : Monday 20th December 2004
author               : atkinson, amorley,anastopoulos
description          : This class is a multi component adaptation of the
                      class TrackStateOnSurface (from Moyse).
                      In that class the track state was represented
                      by a single 5 component track paramter
                      vector (a0, z0, phi0, theta0, q/p) and the associated
                      covariance matrix.
                      In its multi-component form the track
                      state on surface is represented by many track parameters
                      each with a covariance matrix and additionally a
                      weighting is attached to each component which reflects
                      the importance of that particular component in the
                      overall mixture of components which is used to describe
                      the track state at that surface.
*******************************************************************************/
 
#ifndef TrkMultiComponentStateOnSurface_H
#define TrkMultiComponentStateOnSurface_H
 
#include "TrkEventPrimitives/FitQualityOnSurface.h"
#include "TrkParameters/ComponentParameters.h"
#include "TrkParameters/TrackParameters.h"
#include "TrkTrack/TrackStateOnSurface.h"
#include <iostream>
 
class MsgStream;
class TrackCollectionCnv;
class TrackStateOnSurfaceCnv_p3;
namespace Trk {
class MaterialEffectsBase;
class MeasurementBase;
 
class MultiComponentStateOnSurface final : public TrackStateOnSurface
{
 
  friend class ::TrackCollectionCnv;
  friend class ::TrackStateOnSurfaceCnv_p3;
 
public:
  MultiComponentStateOnSurface();

  MultiComponentStateOnSurface(
    const FitQualityOnSurface&,
    std::unique_ptr<MeasurementBase>,
    std::unique_ptr<TrackParameters>,
    MultiComponentState&&,
    std::unique_ptr<MaterialEffectsBase> materialEffectsOnTrack = nullptr);

  MultiComponentStateOnSurface(
    const FitQualityOnSurface&,
    std::unique_ptr<MeasurementBase>,
    std::unique_ptr<TrackParameters>,
    MultiComponentState&&,
    std::unique_ptr<MaterialEffectsBase>,
    const std::bitset<NumberOfTrackStateOnSurfaceTypes>& types);

  MultiComponentStateOnSurface(const MultiComponentStateOnSurface& other);
  MultiComponentStateOnSurface& operator=(
    const MultiComponentStateOnSurface& other);

  MultiComponentStateOnSurface(MultiComponentStateOnSurface&& other) noexcept =
    default;
  MultiComponentStateOnSurface& operator=(
    MultiComponentStateOnSurface&& other) noexcept = default;

  virtual ~MultiComponentStateOnSurface() = default;

  virtual MultiComponentStateOnSurface* clone() const override final;

  virtual TrackStateOnSurface::Variety variety() const override final;

  const MultiComponentState& components() const;

  MultiComponentState& components();
 
private:
  MultiComponentState m_multiComponentState{};
};

MsgStream&
operator<<(MsgStream&, const MultiComponentStateOnSurface&);

std::ostream&
operator<<(std::ostream&, const MultiComponentStateOnSurface&);
 
} // end of Trk namespace

#include "AthContainers/DataVector.h"
DATAVECTOR_BASE(const Trk::MultiComponentStateOnSurface,
                const Trk::TrackStateOnSurface);
typedef DataVector<const Trk::MultiComponentStateOnSurface>
  MultiComponentStateOnSurfaceDV;
 
#include "TrkTrack/MultiComponentStateOnSurface.icc"
#endif