| Geant4 Cross Reference |
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 //-----------------------------------------------------------------
27 //
28 // G4ChannelingOptrMultiParticleChangeCrossSection
29 //
30 // Class Description:
31 // A G4VBiasingOperator concrete implementation example to
32 // illustrate how an operator can make use of another operator.
33 // In the present case, the G4ChannelingOptrChangeCrossSection
34 // operator, that is made to bias processes of one particle
35 // type is instancied several times, one for each particle type
36 // to bias.
37 //
38 //-----------------------------------------------------------------
39 //
40
41 #ifndef G4ChannelingOptrMultiParticleChangeCrossSection_hh
42 #define G4ChannelingOptrMultiParticleChangeCrossSection_hh 1
43
44 #include "G4VBiasingOperator.hh"
45 class G4ChannelingOptrChangeCrossSection;
46 class G4ParticleDefinition;
47
48 #include <map>
49
50 class G4ChannelingOptrMultiParticleChangeCrossSection : public G4VBiasingOperator {
51 public:
52 G4ChannelingOptrMultiParticleChangeCrossSection();
53 virtual ~G4ChannelingOptrMultiParticleChangeCrossSection() {}
54
55 // ---------------------------------
56 // -- Method specific to this class:
57 // ---------------------------------
58 // -- Each particle type for which its name is passed will be biased; *provided*
59 // -- that the proper calls to biasingPhysics->Bias(particleName) have been done
60 // -- in the main program.
61 void AddParticle(const G4String& particleName );
62 void AddChargedParticles();
63
64
65 private:
66 // -----------------------------
67 // -- Mandatory from base class:
68 // -----------------------------
69 // -- This method returns a biasing operation that will bias the physics process occurrence:
70 virtual G4VBiasingOperation*
71 ProposeOccurenceBiasingOperation(const G4Track* track,
72 const G4BiasingProcessInterface* callingProcess);
73 // -- Methods not used:
74 virtual G4VBiasingOperation*
75 ProposeFinalStateBiasingOperation(const G4Track*, const G4BiasingProcessInterface*)
76 {return 0;}
77 virtual G4VBiasingOperation*
78 ProposeNonPhysicsBiasingOperation(const G4Track*, const G4BiasingProcessInterface*)
79 {return 0;}
80
81
82 private:
83 // -- ("using" is to avoid compiler complaining against (false) method shadowing.)
84 using G4VBiasingOperator::OperationApplied;
85
86 // -- Optionnal base class method implementation.
87 // -- This method is called to inform the operator that a proposed operation has been applied.
88 // -- In the present case, it means that a physical interaction occured (interaction at
89 // -- PostStepDoIt level):
90 virtual void OperationApplied( const G4BiasingProcessInterface* callingProcess,
91 G4BiasingAppliedCase biasingCase,
92 G4VBiasingOperation* occurenceOperationApplied,
93 G4double weightForOccurenceInteraction,
94 G4VBiasingOperation* finalStateOperationApplied,
95 const G4VParticleChange* particleChangeProduced );
96
97 public:
98 // -- Optionnal base class method. It is called at the time a tracking of a particle starts:
99 void StartTracking( const G4Track* track );
100
101 private:
102 // -- List of associations between particle types and biasing operators:
103 std::map < const G4ParticleDefinition*,
104 G4ChannelingOptrChangeCrossSection* > fBOptrForParticle;
105 std::vector < const G4ParticleDefinition* > fParticlesToBias;
106 G4ChannelingOptrChangeCrossSection* fCurrentOperator;
107
108 // -- count number of biased interations for current track:
109 G4int fnInteractions;
110 };
111
112 #endif
113