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26
27 #ifndef G4VFASTSIMSENSITIVEDETECTOR_HH
28 #define G4VFASTSIMSENSITIVEDETECTOR_HH
29
30 #include "G4FastHit.hh"
31 #include "G4FastTrack.hh"
32 #include "G4TouchableHistory.hh"
33 #include "G4VReadOutGeometry.hh"
34 #include "G4VSensitiveDetector.hh"
35
36 /**
37 * @brief Base class for the sensitive detecto
38 *
39 * Base class for a sensitive detector that al
40 * fast simulation models. It must me used in
41 * usual base class `G4VSensitiveDetector` for
42 * in G4Step.
43 * ProcessHits(...) method must be implemented
44 * saved in the hit collections. It is invoked
45 * can be called directly in the fast simulati
46 * known to the model), or via the helper clas
47 * locate appropriate volume and retrieve its
48 * An extended example extended/parameterisati
49 * G4VFastSimSensitiveDetector to deposit ener
50 * compare it to the detailed simulation.
51 *
52 */
53
54 class G4VFastSimSensitiveDetector
55 {
56 public:
57 virtual ~G4VFastSimSensitiveDetector() = d
58
59 /// Create a hit.
60 ///
61 /// It checks if G4VSensitiveDetector is a
62 /// and takes into account the readout geo
63 /// User instruction on how to deposit ene
64 /// ProcessHits method.
65 /// @param[in] aHit Created hit (energy an
66 /// @param[in] aTrack Fast track with acce
67 /// properties in envelope's local coordin
68 /// @param[in] aTouchable Touchable with r
69 inline G4bool Hit(const G4FastHit* aHit, c
70 G4TouchableHandle* aTouc
71 {
72 G4bool result = true;
73 auto sensDet = dynamic_cast<G4VSensitive
74 if (sensDet == nullptr) {
75 G4Exception("G4VFastSimSensitiveDetect
76 "Sensitive detector needs
77 "G4VSensitiveDetector if f
78 "simulation is used instea
79 }
80 if (sensDet->isActive()) {
81 G4VReadOutGeometry* ROgeometry = sensD
82 G4TouchableHistory* ROhistory = nullpt
83
84 if (ROgeometry != nullptr) {
85 // create fake pre-step point updati
86 // geometry.
87 G4Step fakeStep;
88 const G4Track* currentTrack = aTrack
89 G4StepPoint* tmpPoint = fakeStep.Get
90 tmpPoint->SetTouchableHandle(*aTouch
91 tmpPoint->SetPosition(aHit->GetPosit
92 tmpPoint->SetMomentumDirection(curre
93 result = ROgeometry->CheckROVolume(&
94 }
95 else {
96 ROhistory = static_cast<G4TouchableH
97 }
98 if (result) result = ProcessHits(aHit,
99 }
100 else {
101 result = false;
102 }
103 return result;
104 }
105
106 private:
107 /// Describes how energy and position of d
108 /// collection. It is a private method and
109 /// of the base class once the readout geo
110 /// corresponding G4VSensitiveDetector is
111 /// It needs to be implemented in the deri
112 /// @param[in] aHit Created hit (energy an
113 /// @param[in] aTrack Fast track with acce
114 /// properties in envelope's local coordin
115 /// @param[in] aROHistory Touchable histor
116 virtual G4bool ProcessHits(const G4FastHit
117 G4TouchableHist
118 };
119 #endif /* G4VFASTSIMSENSITIVEDETECTOR_HH */
120