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25 //
26 //
27 /// \file B5/src/HodoscopeSD.cc
28 /// \brief Implementation of the B5::HodoscopeSD class
29
30 #include "HodoscopeSD.hh"
31
32 #include "HodoscopeHit.hh"
33
34 #include "G4AffineTransform.hh"
35 #include "G4HCofThisEvent.hh"
36 #include "G4SDManager.hh"
37 #include "G4Step.hh"
38 #include "G4StepPoint.hh"
39 #include "G4VPhysicalVolume.hh"
40 #include "G4VTouchable.hh"
41
42 namespace B5
43 {
44
45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
46
47 HodoscopeSD::HodoscopeSD(G4String name) : G4VSensitiveDetector(name)
48 {
49 collectionName.insert("hodoscopeColl");
50 }
51
52 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
53
54 void HodoscopeSD::Initialize(G4HCofThisEvent* hce)
55 {
56 fHitsCollection = new HodoscopeHitsCollection(SensitiveDetectorName, collectionName[0]);
57 if (fHCID < 0) {
58 fHCID = G4SDManager::GetSDMpointer()->GetCollectionID(fHitsCollection);
59 }
60 hce->AddHitsCollection(fHCID, fHitsCollection);
61 }
62
63 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64
65 G4bool HodoscopeSD::ProcessHits(G4Step* step, G4TouchableHistory*)
66 {
67 auto edep = step->GetTotalEnergyDeposit();
68 if (edep == 0.) return true;
69
70 auto preStepPoint = step->GetPreStepPoint();
71 auto touchable = preStepPoint->GetTouchable();
72 auto copyNo = touchable->GetVolume()->GetCopyNo();
73 auto hitTime = preStepPoint->GetGlobalTime();
74
75 // check if this finger already has a hit
76 auto ix = -1;
77 for (std::size_t i = 0; i < fHitsCollection->entries(); ++i) {
78 if ((*fHitsCollection)[i]->GetID() == copyNo) {
79 ix = i;
80 break;
81 }
82 }
83
84 if (ix >= 0) {
85 // if it has, then take the earlier time
86 if ((*fHitsCollection)[ix]->GetTime() > hitTime) {
87 (*fHitsCollection)[ix]->SetTime(hitTime);
88 }
89 }
90 else {
91 // if not, create a new hit and set it to the collection
92 auto hit = new HodoscopeHit(copyNo, hitTime);
93 auto physical = touchable->GetVolume();
94 hit->SetLogV(physical->GetLogicalVolume());
95 auto transform = touchable->GetHistory()->GetTopTransform();
96 transform.Invert();
97 hit->SetRot(transform.NetRotation());
98 hit->SetPos(transform.NetTranslation());
99 fHitsCollection->insert(hit);
100 }
101 return true;
102 }
103
104 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
105
106 } // namespace B5
107