Geant4  9.6.p02
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ExP01ChamberParameterisation.cc
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30 // $Id$
31 //
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34 
36 
37 #include "G4VPhysicalVolume.hh"
38 #include "G4ThreeVector.hh"
39 #include "G4Box.hh"
40 
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42 
44  G4int NoChambers,
45  G4double startZ, // Z of center of first
46  G4double spacingZ, // Z spacing of centers
47  G4double widthChamber,
48  G4double lengthInitial,
49  G4double lengthFinal )
50 {
51  fNoChambers = NoChambers;
52  fStartZ = startZ;
53  fHalfWidth = widthChamber*0.5;
54  fSpacing = spacingZ;
55  fHalfLengthFirst = 0.5 * lengthInitial;
56  // fHalfLengthLast = lengthFinal;
57  if( NoChambers > 0 ){
58  fHalfLengthIncr = 0.5 * (lengthFinal-lengthInitial)/NoChambers;
59  if (spacingZ < widthChamber) {
60  G4cout << "ExP01ChamberParameterisation construction: Width>Spacing" << G4endl;
61  exit(1);;
62  }
63  }
64 
65 }
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70 {}
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73 
75 (const G4int copyNo, G4VPhysicalVolume* physVol) const
76 {
77  G4double Zposition= fStartZ + (copyNo+1) * fSpacing;
78  G4ThreeVector origin(0,0,Zposition);
79  physVol->SetTranslation(origin);
80  physVol->SetRotation(0);
81 }
82 
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84 
86 (G4Box& trackerChamber, const G4int copyNo, const G4VPhysicalVolume*) const
87 {
88  G4double halfLength= fHalfLengthFirst + copyNo * fHalfLengthIncr;
89  trackerChamber.SetXHalfLength(halfLength);
90  trackerChamber.SetYHalfLength(halfLength);
91  trackerChamber.SetZHalfLength(fHalfWidth);
92 }
93 
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