CbmLitTGeoTrackPropagator.h

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#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_