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25 // 25 //
>> 26 //
>> 27 //
>> 28 //
26 // class G4SafetyHelper 29 // class G4SafetyHelper
27 // 30 //
28 // Class description: 31 // Class description:
29 // 32 //
30 // This class is a helper for physics processe 33 // This class is a helper for physics processes which require
31 // knowledge of the safety, and the step size 34 // knowledge of the safety, and the step size for the 'mass' geometry
32 35
33 // First version: J.Apostolakis, July 5th, 2 << 36 // First version: J. Apostolakis, July 5th, 2006
>> 37 // Modified:
>> 38 // 10.04.07 V.Ivanchenko Use unique G4SafetyHelper
34 // ------------------------------------------- 39 // --------------------------------------------------------------------
>> 40
35 #ifndef G4SAFETYHELPER_HH 41 #ifndef G4SAFETYHELPER_HH
36 #define G4SAFETYHELPER_HH 1 42 #define G4SAFETYHELPER_HH 1
37 43
38 #include <vector> 44 #include <vector>
39 45
40 #include "G4Types.hh" 46 #include "G4Types.hh"
41 #include "G4ThreeVector.hh" 47 #include "G4ThreeVector.hh"
42 #include "G4Navigator.hh" 48 #include "G4Navigator.hh"
43 49
44 class G4PathFinder; 50 class G4PathFinder;
45 51
46 class G4SafetyHelper 52 class G4SafetyHelper
47 { 53 {
48 public: // with description << 54 public: // with description
49 <<
50 G4SafetyHelper(); <<
51 ~G4SafetyHelper(); <<
52 // Constructor and destructor <<
53 <<
54 G4double CheckNextStep( const G4ThreeVecto <<
55 const G4ThreeVecto <<
56 const G4double cur <<
57 G4double& ne <<
58 // Return linear step for mass geometry <<
59 <<
60 G4double ComputeSafety( const G4ThreeVecto <<
61 G4double maxRadius <<
62 // Return safety for all geometries. <<
63 // <<
64 // The 2nd argument is the radius of you <<
65 // displacement). Giving this you can re <<
66 // cost. If the second argument is not g <<
67 // isotropic safety <<
68 <<
69 void Locate(const G4ThreeVector& pGlobalPo <<
70 const G4ThreeVector& direction <<
71 // Locate the point for all geometries <<
72 <<
73 void ReLocateWithinVolume(const G4ThreeVec <<
74 // Relocate the point in the volume of i <<
75 <<
76 inline void EnableParallelNavigation(G4boo <<
77 // To have parallel worlds considered, <<
78 // Alternative is to use single (mass) <<
79 <<
80 void InitialiseNavigator(); <<
81 // Check for new navigator for tracking, <<
82 <<
83 inline G4int SetVerboseLevel( G4int lev ); <<
84 inline G4VPhysicalVolume* GetWorldVolume() <<
85 inline void SetCurrentSafety(G4double val, <<
86 55
87 public: // without description << 56 G4SafetyHelper();
88 << 57 ~G4SafetyHelper();
89 void InitialiseHelper(); << 58 //
90 << 59 // Constructor and destructor
91 private: << 60
92 << 61 G4double CheckNextStep( const G4ThreeVector& position,
93 G4PathFinder* fpPathFinder = nullptr; << 62 const G4ThreeVector& direction,
94 G4Navigator* fpMassNavigator = nullptr; << 63 const G4double currentMaxStep,
95 << 64 G4double& newSafety );
96 G4bool fUseParallelGeometries = false; << 65 //
97 // Flag whether to use PathFinder or sin << 66 // Return linear step for mass geometry
98 // By default, one geometry only << 67
99 G4bool fFirstCall = true; << 68 G4double ComputeSafety( const G4ThreeVector& pGlobalPoint,
100 // Flag of first call << 69 G4double maxRadius=DBL_MAX ); // Radius of interest
101 G4int fVerbose = 0; << 70 //
102 // Whether to print warning in case of m << 71 // Return safety for all geometries.
103 << 72 //
104 // State used during tracking -- for optim << 73 // The 2nd argument is the radius of your interest (e.g. maximum displacement )
105 << 74 // Giving this you can reduce the average computational cost.
106 G4ThreeVector fLastSafetyPosition; << 75 // If the second argument is not given, this is the real isotropic safety
107 G4double fLastSafety = 0.0; << 76
108 << 77 void Locate(const G4ThreeVector& pGlobalPoint,
109 // const G4double fRecomputeFactor = 0.0; << 78 const G4ThreeVector& direction);
>> 79 //
>> 80 // Locate the point for all geometries
>> 81
>> 82 void ReLocateWithinVolume(const G4ThreeVector& pGlobalPoint );
>> 83 //
>> 84 // Relocate the point in the volume of interest
>> 85
>> 86
>> 87 G4bool RecheckDistanceToCurrentBoundary(
>> 88 const G4ThreeVector &pGlobalPoint,
>> 89 const G4ThreeVector &pDirection,
>> 90 const G4double pCurrentProposedStepLength,
>> 91 G4double *prDistance,
>> 92 G4double *prNewSafety= 0)const;
>> 93 // Trial method for checking potential displacement for MS
>> 94 // Check new Globalpoint, to see whether it is in current volume
>> 95 // (mother) and not in potential entering daughter.
>> 96 // If in mother, check distance to boundary along pDirection.
>> 97 // If in entering daughter, check distance back to boundary.
>> 98 // NOTE:
>> 99 // Can be called only after ComputeStep is called - before ReLocation
>> 100 // Deals only with current volume (and potentially entered)
>> 101
>> 102 inline void EnableParallelNavigation(G4bool parallel);
>> 103 //
>> 104 // To have parallel worlds considered, must be true.
>> 105 // Alternative is to use single (mass) Navigator directly
>> 106
>> 107 void InitialiseNavigator();
>> 108 //
>> 109 // Check for new navigator for tracking, and reinitialise pointer
>> 110
>> 111 G4int SetVerboseLevel( G4int lev ) { G4int oldlv= fVerbose; fVerbose= lev; return oldlv; }
>> 112
>> 113 inline G4VPhysicalVolume* GetWorldVolume();
>> 114 inline void SetCurrentSafety(G4double val, const G4ThreeVector& pos);
>> 115
>> 116 public: // without description
>> 117
>> 118 void InitialiseHelper();
>> 119
>> 120 private:
>> 121
>> 122 G4PathFinder* fpPathFinder;
>> 123 G4Navigator* fpMassNavigator;
>> 124 G4int fMassNavigatorId;
>> 125
>> 126 G4bool fUseParallelGeometries;
>> 127 // Flag whether to use PathFinder or single (mass) Navigator directly
>> 128 G4bool fFirstCall;
>> 129 // Flag of first call
>> 130 G4int fVerbose;
>> 131 // Whether to print warning in case of move outside safety
>> 132
>> 133 // State used during tracking -- for optimisation
>> 134 G4ThreeVector fLastSafetyPosition;
>> 135 G4double fLastSafety;
>> 136 // const G4double fRecomputeFactor;
110 // parameter for further optimisation: 137 // parameter for further optimisation:
111 // if ( move < fact*safety ) do fast r 138 // if ( move < fact*safety ) do fast recomputation of safety
112 << 139 // End State (tracking)
113 // End State (tracking) <<
114 }; 140 };
115 141
116 // ------------------------------------------- <<
117 // Inline definitions 142 // Inline definitions
118 // ------------------------------------------- <<
119 <<
120 inline G4int G4SafetyHelper::SetVerboseLevel( <<
121 { <<
122 G4int oldlv = fVerbose; <<
123 fVerbose = lev; <<
124 return oldlv; <<
125 } <<
126 143
127 inline 144 inline
128 void G4SafetyHelper::EnableParallelNavigation( 145 void G4SafetyHelper::EnableParallelNavigation(G4bool parallel)
129 { 146 {
130 fUseParallelGeometries = parallel; 147 fUseParallelGeometries = parallel;
131 } 148 }
132 149
133 inline 150 inline
134 G4VPhysicalVolume* G4SafetyHelper::GetWorldVol 151 G4VPhysicalVolume* G4SafetyHelper::GetWorldVolume()
135 { 152 {
136 return fpMassNavigator->GetWorldVolume(); 153 return fpMassNavigator->GetWorldVolume();
137 } 154 }
138 155
139 inline 156 inline
140 void G4SafetyHelper::SetCurrentSafety(G4double 157 void G4SafetyHelper::SetCurrentSafety(G4double val, const G4ThreeVector& pos)
141 { 158 {
142 fLastSafety = val; 159 fLastSafety = val;
143 fLastSafetyPosition = pos; 160 fLastSafetyPosition = pos;
144 } 161 }
145 162
146 #endif 163 #endif
147 164