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Geant4/examples/extended/persistency/gdml/G02/src/G02ChamberParameterisation.cc

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 25 //
 26 /// \file persistency/gdml/G02/src/G02ChamberParameterisation.cc
 27 /// \brief Implementation of the G02ChamberParameterisation class
 28 //
 29 //
 30 //
 31 // Class G02ChamberParameterisation implementation
 32 //
 33 // ----------------------------------------------------------------------------
 34 
 35 #include "G02ChamberParameterisation.hh"
 36 
 37 #include "G4Box.hh"
 38 #include "G4ThreeVector.hh"
 39 #include "G4VPhysicalVolume.hh"
 40 
 41 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 42 
 43 G02ChamberParameterisation::G02ChamberParameterisation(G4int NoChambers,
 44                                                        G4double startZ,  //  Z of center of first
 45                                                        G4double spacingZ,  //  Z spacing of centers
 46                                                        G4double widthChamber,
 47                                                        G4double lengthInitial, G4double lengthFinal)
 48   : G4VPVParameterisation()
 49 {
 50   fNoChambers = NoChambers;
 51   fStartZ = startZ;
 52   fHalfWidth = widthChamber * 0.5;
 53   fSpacing = spacingZ;
 54   fHalfLengthFirst = 0.5 * lengthInitial;
 55 
 56   if (NoChambers > 0) {
 57     fHalfLengthIncr = 0.5 * (lengthFinal - lengthInitial) / NoChambers;
 58     if (spacingZ < widthChamber) {
 59       G4Exception("ExN02G02ChamberParameterisation::G02ChamberParameterisation()", "InvalidSetup",
 60                   FatalException, "Invalid construction: Width>Spacing");
 61     }
 62   }
 63 }
 64 
 65 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 66 
 67 G02ChamberParameterisation::~G02ChamberParameterisation() {}
 68 
 69 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 70 
 71 void G02ChamberParameterisation::ComputeTransformation(const G4int copyNo,
 72                                                        G4VPhysicalVolume* physVol) const
 73 {
 74   G4double Zposition = fStartZ + (copyNo + 1) * fSpacing;
 75   G4ThreeVector origin(0., 0., Zposition);
 76   physVol->SetTranslation(origin);
 77   physVol->SetRotation(0);
 78 }
 79 
 80 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 81 
 82 void G02ChamberParameterisation::ComputeDimensions(G4Box& trackerChamber, const G4int copyNo,
 83                                                    const G4VPhysicalVolume*) const
 84 {
 85   G4double halfLength = fHalfLengthFirst + copyNo * fHalfLengthIncr;
 86   trackerChamber.SetXHalfLength(halfLength);
 87   trackerChamber.SetYHalfLength(halfLength);
 88   trackerChamber.SetZHalfLength(fHalfWidth);
 89 }
 90 
 91 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 92