| 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 // G4ParticleChangeForDecay
27 //
28 // Class description:
29 //
30 // Concrete class for ParticleChange which has functionality for G4Decay.
31 //
32 // This class contains the results after invocation of the decay process.
33 // This includes secondary particles generated by the interaction.
34
35 // Author: Hisaya Kurashige, 23 March 1998
36 // --------------------------------------------------------------------
37 #ifndef G4ParticleChangeForDecay_hh
38 #define G4ParticleChangeForDecay_hh 1
39
40 #include "globals.hh"
41 #include "G4ios.hh"
42 #include "G4ThreeVector.hh"
43 #include "G4VParticleChange.hh"
44
45 class G4DynamicParticle;
46
47 class G4ParticleChangeForDecay final : public G4VParticleChange
48 {
49 public:
50
51 G4ParticleChangeForDecay();
52
53 ~G4ParticleChangeForDecay() override = default;
54
55 G4ParticleChangeForDecay(const G4ParticleChangeForDecay& right) = delete;
56 G4ParticleChangeForDecay& operator=(const G4ParticleChangeForDecay& right) = delete;
57
58 // --- the following methods are for updating G4Step -----
59 // Return the pointer to the G4Step after updating the step information
60 // by using final state information of the track given by a physics process
61 // !!! No effect for AlongSteyp
62
63 G4Step* UpdateStepForAtRest(G4Step* Step) final;
64 G4Step* UpdateStepForPostStep(G4Step* Step) final;
65
66 void Initialize(const G4Track&) final;
67 // Initialize all properties by using G4Track information
68
69 void ProposeGlobalTime(G4double t);
70 void ProposeLocalTime(G4double t);
71 // Get/Propose the final global/local time
72 // NOTE: DO NOT INVOKE both methods in a step
73 // Each method affects both local and global time
74
75 G4double GetGlobalTime(G4double timeDelay = 0.0) const;
76 G4double GetLocalTime(G4double timeDelay = 0.0) const;
77 // Convert the time delay to the glocbal/local time.
78 // Can get the final global/local time without argument
79
80 const G4ThreeVector* GetPolarization() const;
81 void ProposePolarization(G4double Px, G4double Py, G4double Pz);
82 void ProposePolarization(const G4ThreeVector& finalPoralization);
83 // Get/Propose the final Polarization vector
84
85 // --- Dump and debug methods ---
86
87 void DumpInfo() const final;
88
89 G4bool CheckIt(const G4Track&) final;
90
91 private:
92
93 G4double theGlobalTime0 = 0.0;
94 // The global time at Initial
95 G4double theLocalTime0 = 0.0;
96 // The local time at Initial
97
98 G4double theTimeChange = 0.0;
99 // The change of local time of a given particle
100
101 G4ThreeVector thePolarizationChange;
102 // The changed (final) polarization of a given track
103 };
104
105 // ----------------------
106 // Inline methods
107 // ----------------------
108
109 inline
110 void G4ParticleChangeForDecay::ProposeGlobalTime(G4double t)
111 {
112 theTimeChange = (t - theGlobalTime0) + theLocalTime0;
113 }
114
115 inline
116 G4double G4ParticleChangeForDecay::GetGlobalTime(G4double timeDelay) const
117 {
118 // Convert the time delay to the global time.
119 return theGlobalTime0 + (theTimeChange - theLocalTime0) + timeDelay;
120 }
121
122 inline
123 void G4ParticleChangeForDecay::ProposeLocalTime(G4double t)
124 {
125 theTimeChange = t;
126 }
127
128 inline
129 G4double G4ParticleChangeForDecay::GetLocalTime(G4double timeDelay) const
130 {
131 // Convert the time delay to the local time.
132 return theTimeChange + timeDelay;
133 }
134
135 inline
136 const G4ThreeVector* G4ParticleChangeForDecay::GetPolarization() const
137 {
138 return &thePolarizationChange;
139 }
140
141 inline
142 void G4ParticleChangeForDecay::ProposePolarization(
143 const G4ThreeVector& finalPoralization)
144 {
145 thePolarizationChange = finalPoralization;
146 }
147
148 inline
149 void G4ParticleChangeForDecay::ProposePolarization(G4double Px,
150 G4double Py,
151 G4double Pz)
152 {
153 thePolarizationChange.setX(Px);
154 thePolarizationChange.setY(Py);
155 thePolarizationChange.setZ(Pz);
156 }
157
158 #endif
159