TGeoGearDistanceProperties.h

#ifndef GEAR_TGeoGEARDISTANCEPROPERTIES_H
#define GEAR_TGeoGEARDISTANCEPROPERTIES_H 1

#include <string>
#include <vector>

#include "gear/GEAR.h"
#include "gear/GearDistanceProperties.h"

//#include "TGeoManager.h"
class TGeoManager;

namespace gear {

class TGeoGearDistanceProperties: public GearDistanceProperties {

public:

    TGeoGearDistanceProperties( const TGeoGearDistanceProperties&) = delete ;
    TGeoGearDistanceProperties& operator=( const TGeoGearDistanceProperties&) = delete ;

    TGeoGearDistanceProperties(TGeoManager *geoMgr);

    virtual ~TGeoGearDistanceProperties() { /* nop */; }

    virtual const std::vector<std::string>&  getMaterialNames(const Vector3D & p0, const Vector3D & p1) const ;

    virtual const std::vector<double>&  getMaterialThicknesses(const Vector3D & p0, const Vector3D & p1) const ;

   virtual const std::vector<std::string>  getVolumeNames(const Vector3D & p0, const Vector3D & p1) const ;

    virtual double getNRadlen(const Vector3D & p0, const Vector3D & p1) const ;

    virtual double getNIntlen(const Vector3D & p0, const Vector3D & p1) const ;

    virtual double getBdL(const Vector3D & p0, const Vector3D & p1) const ;

    virtual double getEdL(const Vector3D & p0, const Vector3D & p1) const ;

protected:
    void beamOn(const Vector3D & p0, const Vector3D & p1)const ;
    TGeoManager *_tgeomanager = nullptr ;
    //two points to keep track of what has already been called and in memory at the moment
    mutable Vector3D _p0{};
    mutable Vector3D _p1{};
    //containers for data evaluated during tracking in beamOn
    //they have to be mutable in order to be changed by beamOn
    //beamOn is const otherwise it could not be called,
    //but should still be able to change the private variables
    mutable std::vector<std::string> _volNames{};
    mutable std::vector<std::string> _matNames{};
    mutable std::vector<double> _distance{};
    mutable std::vector<double> _intLen{};
    mutable std::vector<double> _radLen{};
        
}; // class
} // namespace gear
#endif /* ifndef GEAR_TGeoGEARDISTANCEPROPERTIES_H */