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25 //
26 // G4MagIntegratorStepper inline methods implementation
27 //
28 // Author: J.Apostolakis, CERN - 15.01.1997
29 // --------------------------------------------------------------------
30
31 inline
32 G4int G4MagIntegratorStepper::IntegrationOrder()
33 {
34 return fIntegrationOrder;
35 }
36
37 inline
38 G4EquationOfMotion* G4MagIntegratorStepper::GetEquationOfMotion()
39 {
40 return fEquation_Rhs;
41 }
42
43 inline
44 const G4EquationOfMotion* G4MagIntegratorStepper::GetEquationOfMotion() const
45 {
46 return fEquation_Rhs;
47 }
48
49 inline
50 void G4MagIntegratorStepper::SetEquationOfMotion(G4EquationOfMotion* newEq)
51 {
52 if( newEq != nullptr )
53 {
54 fEquation_Rhs = newEq;
55 }
56 }
57
58 inline
59 unsigned long G4MagIntegratorStepper::GetfNoRHSCalls()
60 {
61 return fNoRHSCalls;
62 }
63
64 inline
65 void G4MagIntegratorStepper::ResetfNORHSCalls()
66 {
67 fNoRHSCalls = 0;
68 }
69
70 inline
71 G4bool G4MagIntegratorStepper::IsFSAL() const
72 {
73 return fIsFSAL;
74 }
75
76 inline
77 void G4MagIntegratorStepper::SetIntegrationOrder(G4int order)
78 {
79 fIntegrationOrder = order;
80 }
81
82 inline
83 void G4MagIntegratorStepper::SetFSAL(G4bool flag)
84 {
85 fIsFSAL = flag;
86 }
87
88 inline
89 G4int G4MagIntegratorStepper::GetNumberOfVariables() const
90 {
91 return fNoIntegrationVariables;
92 }
93
94
95 inline
96 G4int G4MagIntegratorStepper::GetNumberOfStateVariables() const
97 {
98 return fNoStateVariables;
99 }
100
101 inline
102 void G4MagIntegratorStepper::RightHandSide(const G4double y[],
103 G4double dydx[]) const
104 {
105 fEquation_Rhs->RightHandSide(y, dydx);
106 ++fNoRHSCalls; // IncrementRHSCalls();
107 }
108
109 inline
110 void G4MagIntegratorStepper::RightHandSide(const G4double y[],
111 G4double dydx[],
112 G4double field[]) const
113 {
114 fEquation_Rhs->EvaluateRhsReturnB(y, dydx, field);
115 ++fNoRHSCalls;
116 }
117
118 inline
119 void G4MagIntegratorStepper::NormaliseTangentVector( G4double vec[6] )
120 {
121 G4double drds2 = vec[3]*vec[3]+vec[4]*vec[4]+vec[5]*vec[5];
122
123 if( std::fabs(drds2 - 1.0) > 1.e-14 )
124 {
125 G4double normx = 1.0 / std::sqrt(drds2);
126 for(auto i=3; i<6; ++i) { vec[i] *= normx; }
127 }
128 }
129
130 inline
131 void G4MagIntegratorStepper::NormalisePolarizationVector( G4double vec[12] )
132 {
133 G4double drds2 = vec[9]*vec[9]+vec[10]*vec[10]+vec[11]*vec[11];
134
135 if( drds2 > 0. )
136 {
137 if( std::fabs(drds2 - 1.0) > 1.e-14 )
138 {
139 G4double normx = 1.0 / std::sqrt(drds2);
140 for(auto i=9; i<12; ++i) { vec[i] *= normx; }
141 }
142 }
143 }
144