CbmLitTGeoTrackPropagator.h

Go to the documentation of this file.

/* Copyright (C) 2007-2012 GSI/JINR-LIT, Darmstadt/Dubna
   SPDX-License-Identifier: GPL-3.0-only
   Authors: Andrey Lebedev [committer] */
 
#ifndef CBMLITTGEOTRACKPROPAGATOR_H_
#define CBMLITTGEOTRACKPROPAGATOR_H_
 
#include "base/CbmLitPtrTypes.h"
#include "interface/CbmLitTrackPropagator.h"
 
#include <vector>
 
class CbmLitTGeoTrackPropagator : public CbmLitTrackPropagator {
 public:
  /* Standard constructor with the pointer to track extrapolation tool.
    * @param extrapolator Pointer to the LIT track extrapolator class to be used during the propagation.
    */
  CbmLitTGeoTrackPropagator(TrackExtrapolatorPtr extrapolator);
 
  /* Destructor */
  virtual ~CbmLitTGeoTrackPropagator();
 
  /* Inherited from CbmLitTrackPropagator */
  virtual LitStatus Propagate(const CbmLitTrackParam* parIn, CbmLitTrackParam* parOut, litfloat zOut, int pdg,
                              std::vector<litfloat>* F, litfloat* length);
 
  /* Inherited from CbmLitTrackPropagator */
  virtual LitStatus Propagate(CbmLitTrackParam* par, litfloat zOut, int pdg, std::vector<litfloat>* F,
                              litfloat* length);
 
  static litfloat MAXIMUM_PROPAGATION_STEP_SIZE;  // maximum step size in the TGeo track propagation
 
 protected:
  /* Updates the transport matrix F = newF * F.
     * @param F Input/output Current transport matrix.
     * @param newF Transport matrix to be included in the current transport matrix.
     */
  void UpdateF(std::vector<litfloat>& F, const std::vector<litfloat>& newF);
 
  /* Checks if the track parameters are correct by checking their maximum acceptable values.
     * @param par Track parameters to be checked.
     */
  bool IsParCorrect(const CbmLitTrackParam* par);
 
 private:
  TrackExtrapolatorPtr fExtrapolator;  // Track extrapolator tool
  GeoNavigatorPtr fNavigator;          // Geometry navigator tool
  MaterialEffectsPtr fMaterial;        // Material effects tool
};
 
#endif  //CBMLITTGEOTRACKPROPAGATOR_H_