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