CbmLitTGeoNavigator.h

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/* Copyright (C) 2008-2012 GSI/JINR-LIT, Darmstadt/Dubna
   SPDX-License-Identifier: GPL-3.0-only
   Authors: Andrey Lebedev [committer] */
 
#ifndef CBMLITTGEONAVIGATOR_H_
#define CBMLITTGEONAVIGATOR_H_
 
#include "TObject.h"
#include "interface/CbmLitGeoNavigator.h"
#include "propagation/CbmLitMaterialInfo.h"
 
#include <vector>
 
class CbmLitTrackParam;
 
class CbmLitTGeoNavigator : public CbmLitGeoNavigator {
 public:
  /* Constructor */
  CbmLitTGeoNavigator();
 
  /* Destructor */
  virtual ~CbmLitTGeoNavigator();
 
  /* Inherited from CbmLitGeoNavigator */
  LitStatus FindIntersections(const CbmLitTrackParam* par, litfloat zOut, std::vector<CbmLitMaterialInfo>& inter);
 
 private:
  /* Sets the current position and direction for the TGeoManager
    * @param par Track parameter from which the current position and direction will be initialized.
    */
  void InitTrack(const CbmLitTrackParam* par, Bool_t downstream) const;
 
  /* Make a step: if step=0 than to the next crossing boundary, else
    * make a step of length step.
    * @param step Step size [cm].
    * @return Crossed material information
    */
  CbmLitMaterialInfo MakeStep(litfloat step = 0.) const;
 
  /* Calculates length between current position and the point on the plane at zOut.
    * @param zOut Output Z position [cm]
    * @return Length.
    */
  litfloat CalcLength(litfloat zOut) const;
};
 
#endif /*CBMLITTGEONAVIGATOR_H_*/