include/Geant4/G4VHit.hh

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
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0024 // ********************************************************************
0025 //
0026 // G4VHit
0027 //
0028 // Class description:
0029 //
0030 // This is the base class of hit object. The user should derive this
0031 // base class to make his/her own hit class. Two virtual method Draw()
0032 // and Print() can be implemented if the user wants these functionalities.
0033 // If a concrete hit class is used as a transient class, G4Allocator
0034 // must be used.
0035 //
0036 // Author: Makoto Asai
0037 // --------------------------------------------------------------------
0038 #ifndef G4VHit_h
0039 #define G4VHit_h 1
0040
0041 #include "globals.hh"
0042
0043 #include <map>
0044 #include <vector>
0045
0046 class G4AttDef;
0047 class G4AttValue;
0048
0049 class G4VHit
0050 {
0051  public:
0052
0053   G4VHit() = default;
0054   virtual ~G4VHit() = default;
0055
0056   G4bool operator==(const G4VHit&) const { return false; }
0057
0058   virtual void Draw() {}
0059   virtual void Print() {}
0060
0061   // Returns pointer to map of attribute definitions for this hit
0062   // Caller is responsible for checking validity of returned pointer.
0063   // See `G4Trajectory` for a concrete implementation.
0064   virtual const std::map<G4String, G4AttDef>* GetAttDefs() const { return nullptr; }
0065
0066   // Returns pointer to list of attributes for this hit
0067   // Each attribute must correspond to a definition returned by `GetAffDefs`.
0068   // Caller is responsible for checking validity of returned pointer.
0069   // See `G4Trajectory` for a concrete implementation, and
0070   // `G4VTrajectory::ShowTrajectory` for an example of its use.
0071   virtual std::vector<G4AttValue>* CreateAttValues() const { return nullptr; }
0072 };
0073
0074 #endif