1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // ==================================================================== |
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27 | // |
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28 | // HepMCG4Interface.hh |
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29 | // $Id: HepMCG4Interface.hh,v 1.3 2006/06/29 17:05:22 gunter Exp $ |
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30 | // |
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31 | // A base class for primary generation via HepMC object. |
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32 | // This class is derived from G4VPrimaryGenerator. |
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33 | // |
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34 | // ==================================================================== |
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35 | #ifndef HEPMC_G4_INTERFACE_H |
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36 | #define HEPMC_G4_INTERFACE_H |
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37 | |
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38 | #include "G4VPrimaryGenerator.hh" |
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39 | #include "HepMC/GenEvent.h" |
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40 | |
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41 | class HepMCG4Interface : public G4VPrimaryGenerator { |
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42 | protected: |
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43 | // Note that the life of HepMC event object must be handled by users. |
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44 | // In the default implementation, a current HepMC event will be |
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45 | // deleted at GeneratePrimaryVertex() in the next event. |
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46 | HepMC::GenEvent* hepmcEvent; // (care for single event case only) |
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47 | |
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48 | // We have to take care for the position of primaries because |
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49 | // primary vertices outside the world voulme give rise to G4Execption. |
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50 | // If the default implementation is not adequate, an alternative |
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51 | // can be implemented in your own class. |
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52 | virtual G4bool CheckVertexInsideWorld(const G4ThreeVector& pos) const; |
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53 | |
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54 | // service method for conversion from HepMC::GenEvent to G4Event |
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55 | void HepMC2G4(const HepMC::GenEvent* hepmcevt, G4Event* g4event); |
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56 | |
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57 | // Implement this method in his/her own concrete class. |
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58 | // An empty event will be created in default. |
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59 | virtual HepMC::GenEvent* GenerateHepMCEvent(); |
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60 | |
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61 | public: |
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62 | HepMCG4Interface(); |
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63 | virtual ~HepMCG4Interface(); |
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64 | |
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65 | // set/get methods |
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66 | HepMC::GenEvent* GetHepMCGenEvent() const; |
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67 | |
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68 | // The default behavior is that a single HepMC event generated by |
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69 | // GenerateHepMCEvent() will be converted to G4Event through HepMC2G4(). |
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70 | virtual void GeneratePrimaryVertex(G4Event* anEvent); |
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71 | }; |
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72 | |
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73 | // ==================================================================== |
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74 | // inline functions |
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75 | // ==================================================================== |
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76 | |
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77 | inline HepMC::GenEvent* HepMCG4Interface::GetHepMCGenEvent() const |
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78 | { |
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79 | return hepmcEvent; |
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80 | } |
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81 | |
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82 | #endif |
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