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25 //
26 // G4VContinuousDiscreteProcess class implementation
27 //
28 // Authors:
29 // - 2 December 1995, G.Cosmo - First implementation, based on object model
30 // - 8 January 1997, H.Kurashige - New Physics scheme
31 // --------------------------------------------------------------------
32
33 #include "G4VContinuousDiscreteProcess.hh"
34 #include "G4SystemOfUnits.hh"
35
36 #include "G4Step.hh"
37 #include "G4Track.hh"
38 #include "G4MaterialTable.hh"
39 #include "G4VParticleChange.hh"
40
41 // --------------------------------------------------------------------
42 G4VContinuousDiscreteProcess::G4VContinuousDiscreteProcess()
43 : G4VProcess("No Name Discrete Process")
44 {
45 G4Exception("G4VContinuousDiscreteProcess::G4VContinuousDiscreteProcess()",
46 "ProcMan102", JustWarning, "Default constructor is called");
47 }
48
49 // --------------------------------------------------------------------
50 G4VContinuousDiscreteProcess::
51 G4VContinuousDiscreteProcess(const G4String& aName, G4ProcessType aType)
52 : G4VProcess(aName, aType)
53 {
54 enableAtRestDoIt = false;
55 }
56
57 // --------------------------------------------------------------------
58 G4VContinuousDiscreteProcess::~G4VContinuousDiscreteProcess()
59 {
60 }
61
62 // --------------------------------------------------------------------
63 G4VContinuousDiscreteProcess::
64 G4VContinuousDiscreteProcess(G4VContinuousDiscreteProcess& right)
65 : G4VProcess(right),
66 valueGPILSelection(right.valueGPILSelection)
67 {
68 }
69
70 // --------------------------------------------------------------------
71 G4double G4VContinuousDiscreteProcess::
72 PostStepGetPhysicalInteractionLength( const G4Track& track,
73 G4double previousStepSize,
74 G4ForceCondition* condition )
75 {
76 if ( (previousStepSize <=0.0) || (theNumberOfInteractionLengthLeft<=0.0))
77 {
78 // beginning of tracking (or just after DoIt() of this process)
79 ResetNumberOfInteractionLengthLeft();
80 }
81 else if ( previousStepSize > 0.0)
82 {
83 // subtract NumberOfInteractionLengthLeft
84 SubtractNumberOfInteractionLengthLeft(previousStepSize);
85 }
86 else
87 {
88 // zero step
89 // DO NOTHING
90 }
91
92 // condition is set to "Not Forced"
93 *condition = NotForced;
94
95 // get mean free path
96 currentInteractionLength = GetMeanFreePath(track,previousStepSize,condition);
97
98 G4double value;
99 if (currentInteractionLength < DBL_MAX)
100 {
101 value = theNumberOfInteractionLengthLeft * currentInteractionLength;
102 }
103 else
104 {
105 value = DBL_MAX;
106 }
107 #ifdef G4VERBOSE
108 if (verboseLevel>1)
109 {
110 G4cout << "G4VContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength() - ";
111 G4cout << "[ " << GetProcessName() << "]" << G4endl;
112 track.GetDynamicParticle()->DumpInfo();
113 G4cout << " in Material " << track.GetMaterial()->GetName() << G4endl;
114 G4cout << "InteractionLength= " << value/cm <<"[cm] " << G4endl;
115 }
116 #endif
117 return value;
118 }
119
120 // --------------------------------------------------------------------
121 G4VParticleChange*
122 G4VContinuousDiscreteProcess::PostStepDoIt( const G4Track& ,
123 const G4Step& )
124 {
125 // clear NumberOfInteractionLengthLeft
126 ClearNumberOfInteractionLengthLeft();
127
128 return pParticleChange;
129 }
130
131 // --------------------------------------------------------------------
132 G4VParticleChange*
133 G4VContinuousDiscreteProcess::AlongStepDoIt( const G4Track& ,
134 const G4Step& )
135 {
136 // clear NumberOfInteractionLengthLeft
137 ClearNumberOfInteractionLengthLeft();
138
139 return pParticleChange;
140 }
141
142 // --------------------------------------------------------------------
143 G4double G4VContinuousDiscreteProcess::
144 AlongStepGetPhysicalInteractionLength( const G4Track& track,
145 G4double previousStepSize,
146 G4double currentMinimumStep,
147 G4double& currentSafety,
148 G4GPILSelection* selection )
149 {
150 // GPILSelection is set to defaule value of CandidateForSelection
151 valueGPILSelection = CandidateForSelection;
152
153 // get Step limit proposed by the process
154 G4double steplength = GetContinuousStepLimit(track,previousStepSize,currentMinimumStep,currentSafety);
155
156 // set return value for G4GPILSelection
157 *selection = valueGPILSelection;
158
159 #ifdef G4VERBOSE
160 if (verboseLevel>1)
161 {
162 G4cout << "G4VContinuousDiscreteProcess::AlongStepGetPhysicalInteractionLength() - ";
163 G4cout << "[ " << GetProcessName() << "]" << G4endl;
164 track.GetDynamicParticle()->DumpInfo();
165 G4cout << " in Material " << track.GetMaterial()->GetName() << G4endl;
166 G4cout << "IntractionLength= " << steplength/cm <<"[cm] " << G4endl;
167 }
168 #endif
169 return steplength;
170 }
171