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Geant4/examples/extended/persistency/P01/src/ExP01ChamberParameterisation.cc

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 25 //
 26 /// \file persistency/P01/src/ExP01ChamberParameterisation.cc
 27 /// \brief Implementation of the ExP01ChamberParameterisation class
 28 //
 29 //
 30 //
 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 33 
 34 #include "ExP01ChamberParameterisation.hh"
 35 
 36 #include "G4Box.hh"
 37 #include "G4ThreeVector.hh"
 38 #include "G4VPhysicalVolume.hh"
 39 
 40 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 41 
 42 ExP01ChamberParameterisation::ExP01ChamberParameterisation(
 43   G4int NoChambers,
 44   G4double startZ,  //  Z of center of first
 45   G4double spacingZ,  //  Z spacing of centers
 46   G4double widthChamber, G4double lengthInitial, G4double lengthFinal)
 47   : G4VPVParameterisation()
 48 {
 49   fNoChambers = NoChambers;
 50   fStartZ = startZ;
 51   fHalfWidth = widthChamber * 0.5;
 52   fSpacing = spacingZ;
 53   fHalfLengthFirst = 0.5 * lengthInitial;
 54   // fHalfLengthLast = lengthFinal;
 55   fHalfLengthIncr = 0;
 56   if (NoChambers > 0) {
 57     fHalfLengthIncr = 0.5 * (lengthFinal - lengthInitial) / NoChambers;
 58 
 59     if (spacingZ < widthChamber) {
 60       G4Exception("ExN02ChamberParameterisation::ExN02ChamberParameterisation()", "InvalidSetup",
 61                   FatalException, "Width>Spacing");
 62     }
 63   }
 64 }
 65 
 66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 67 
 68 ExP01ChamberParameterisation::~ExP01ChamberParameterisation() {}
 69 
 70 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 71 
 72 void ExP01ChamberParameterisation::ComputeTransformation(const G4int copyNo,
 73                                                          G4VPhysicalVolume* physVol) const
 74 {
 75   G4double Zposition = fStartZ + (copyNo + 1) * fSpacing;
 76   G4ThreeVector origin(0, 0, Zposition);
 77   physVol->SetTranslation(origin);
 78   physVol->SetRotation(0);
 79 }
 80 
 81 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 82 
 83 void ExP01ChamberParameterisation::ComputeDimensions(G4Box& trackerChamber, const G4int copyNo,
 84                                                      const G4VPhysicalVolume*) const
 85 {
 86   G4double halfLength = fHalfLengthFirst + copyNo * fHalfLengthIncr;
 87   trackerChamber.SetXHalfLength(halfLength);
 88   trackerChamber.SetYHalfLength(halfLength);
 89   trackerChamber.SetZHalfLength(fHalfWidth);
 90 }
 91 
 92 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 93