include/Geant4/G4VHit.hh

0001 //
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0027 //
0028
0029 #ifndef G4VHit_h
0030 #define G4VHit_h 1
0031
0032 #include "globals.hh"
0033
0034 #include <map>
0035 #include <vector>
0036
0037 class G4AttDef;
0038 class G4AttValue;
0039
0040 // class description:
0041 //
0042 //  This is the base class of hit object. The user should derive this
0043 // base class to make his/her own hit class. Two virtual method Draw()
0044 // and Print() can be implemented if the user wants these functionarities.
0045 //  If a concrete hit class is used as a transient class, G4Allocator
0046 // must be used.
0047
0048 class G4VHit
0049 {
0050  public:
0051   G4VHit() = default;
0052   virtual ~G4VHit() = default;
0053
0054   G4bool operator==(const G4VHit&) const { return false; }
0055
0056   virtual void Draw(){};
0057   virtual void Print(){};
0058
0059   // Returns pointer to map of attribute definitions for this hit
0060   // Caller is responsible for checking validity of returned pointer.
0061   // See `G4Trajectory` for a concrete implementation.
0062   virtual const std::map<G4String, G4AttDef>* GetAttDefs() const { return nullptr; }
0063
0064   // Returns pointer to list of attributes for this hit
0065   // Each attribute must correspond to a definition returned by `GetAffDefs`.
0066   // Caller is responsible for checking validity of returned pointer.
0067   // See `G4Trajectory` for a concrete implementation, and
0068   // `G4VTrajectory::ShowTrajectory` for an example of its use.
0069   virtual std::vector<G4AttValue>* CreateAttValues() const { return nullptr; }
0070 };
0071
0072 #endif