P01/src/ExP01ChamberParameterisation.cc

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0026 /// \file persistency/P01/src/ExP01ChamberParameterisation.cc
0027 /// \brief Implementation of the ExP01ChamberParameterisation class
0028 //
0029 //
0030 //
0031 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0032 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0033
0034 #include "ExP01ChamberParameterisation.hh"
0035
0036 #include "G4Box.hh"
0037 #include "G4ThreeVector.hh"
0038 #include "G4VPhysicalVolume.hh"
0039
0040 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0041
0042 ExP01ChamberParameterisation::ExP01ChamberParameterisation(
0043   G4int NoChambers,
0044   G4double startZ,  //  Z of center of first
0045   G4double spacingZ,  //  Z spacing of centers
0046   G4double widthChamber, G4double lengthInitial, G4double lengthFinal)
0047   : G4VPVParameterisation()
0048 {
0049   fNoChambers = NoChambers;
0050   fStartZ = startZ;
0051   fHalfWidth = widthChamber * 0.5;
0052   fSpacing = spacingZ;
0053   fHalfLengthFirst = 0.5 * lengthInitial;
0054   // fHalfLengthLast = lengthFinal;
0055   fHalfLengthIncr = 0;
0056   if (NoChambers > 0) {
0057     fHalfLengthIncr = 0.5 * (lengthFinal - lengthInitial) / NoChambers;
0058
0059     if (spacingZ < widthChamber) {
0060       G4Exception("ExN02ChamberParameterisation::ExN02ChamberParameterisation()", "InvalidSetup",
0061                   FatalException, "Width>Spacing");
0062     }
0063   }
0064 }
0065
0066 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0067
0068 ExP01ChamberParameterisation::~ExP01ChamberParameterisation() {}
0069
0070 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0071
0072 void ExP01ChamberParameterisation::ComputeTransformation(const G4int copyNo,
0073                                                          G4VPhysicalVolume* physVol) const
0074 {
0075   G4double Zposition = fStartZ + (copyNo + 1) * fSpacing;
0076   G4ThreeVector origin(0, 0, Zposition);
0077   physVol->SetTranslation(origin);
0078   physVol->SetRotation(0);
0079 }
0080
0081 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0082
0083 void ExP01ChamberParameterisation::ComputeDimensions(G4Box& trackerChamber, const G4int copyNo,
0084                                                      const G4VPhysicalVolume*) const
0085 {
0086   G4double halfLength = fHalfLengthFirst + copyNo * fHalfLengthIncr;
0087   trackerChamber.SetXHalfLength(halfLength);
0088   trackerChamber.SetYHalfLength(halfLength);
0089   trackerChamber.SetZHalfLength(fHalfWidth);
0090 }
0091
0092 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......