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25 //
26 // class G4TouchableHistory inline implementation
27 //
28 // Created: Paul Kent, August 1996
29 // ----------------------------------------------------------------------
30
31 extern G4GEOM_DLL G4Allocator<G4TouchableHistory>*& aTouchableHistoryAllocator();
32
33 inline
34 void G4TouchableHistory::UpdateYourself( G4VPhysicalVolume* pPhysVol,
35 const G4NavigationHistory* pHistory )
36 {
37 fhistory = *pHistory;
38 const G4AffineTransform& tf = fhistory.GetTopTransform();
39 if( pPhysVol == nullptr )
40 {
41 // This means that the track has left the World Volume.
42 // Since the Navigation History does not already reflect this,
43 // we must correct this problem here.
44 //
45 fhistory.SetFirstEntry(pPhysVol);
46 }
47 ftlate = tf.InverseNetTranslation();
48 frot = tf.InverseNetRotation();
49 }
50
51 inline
52 G4int G4TouchableHistory::CalculateHistoryIndex( G4int stackDepth ) const
53 {
54 return G4int(fhistory.GetDepth()-stackDepth); // was -1
55 }
56
57 inline
58 G4VPhysicalVolume* G4TouchableHistory::GetVolume( G4int depth ) const
59 {
60 return fhistory.GetVolume(CalculateHistoryIndex(depth));
61 }
62
63 inline
64 G4VSolid* G4TouchableHistory::GetSolid( G4int depth ) const
65 {
66 return fhistory.GetVolume(CalculateHistoryIndex(depth))
67 ->GetLogicalVolume()->GetSolid();
68 }
69
70 inline
71 G4int G4TouchableHistory::GetReplicaNumber( G4int depth ) const
72 {
73 return fhistory.GetReplicaNo(CalculateHistoryIndex(depth));
74 }
75
76 inline
77 G4int G4TouchableHistory::GetCopyNumber(G4int depth) const
78 {
79 return GetReplicaNumber(depth);
80 }
81
82 inline
83 G4int G4TouchableHistory::GetHistoryDepth() const
84 {
85 return G4int(fhistory.GetDepth());
86 }
87
88 inline
89 G4int G4TouchableHistory::MoveUpHistory( G4int num_levels )
90 {
91 auto maxLevelsMove = G4int(fhistory.GetDepth());
92 G4int minLevelsMove = 0; // Cannot redescend today!
93 // Soon it will be possible
94 // by adding a data member here
95 // fCurrentDepth;
96 if( num_levels > maxLevelsMove )
97 {
98 num_levels = maxLevelsMove;
99 }
100 else if( num_levels < minLevelsMove )
101 {
102 num_levels = minLevelsMove;
103 }
104 fhistory.BackLevel( num_levels );
105
106 return num_levels;
107 }
108
109 inline
110 const G4NavigationHistory* G4TouchableHistory::GetHistory() const
111 {
112 return &fhistory;
113 }
114
115 // There is no provision in case this class is subclassed.
116 // If it is subclassed, this will fail and may not give errors!
117 //
118 inline
119 void* G4TouchableHistory::operator new(std::size_t)
120 {
121 // Once the Navigator calls InitializeAllocator,
122 // the if block below can be removed.
123 //
124 if (aTouchableHistoryAllocator() == nullptr)
125 {
126 aTouchableHistoryAllocator() = new G4Allocator<G4TouchableHistory>;
127 }
128 return (void *) aTouchableHistoryAllocator()->MallocSingle();
129 }
130
131 inline
132 void G4TouchableHistory::operator delete(void* aTH)
133 {
134 aTouchableHistoryAllocator()->FreeSingle((G4TouchableHistory *) aTH);
135 }
136
137