Gabriele Cosmo
63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
// This code implementation is the intellectual property of
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// the RD44 GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: ExN02ChamberParameterisation.cc,v 1.1 1999/01/07 16:05:48 gunter Exp $
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// GEANT4 tag $Name: geant4-00-01 $
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//
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#include "ExN02ChamberParameterisation.hh"
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#include "G4VPhysicalVolume.hh"
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#include "G4ThreeVector.hh"
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#include "G4Box.hh"
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ExN02ChamberParameterisation::ExN02ChamberParameterisation(
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G4int NoChambers,
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G4double startZ, // Z of center of first
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G4double spacingZ, // Z spacing of centers
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G4double widthChamber,
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G4double lengthInitial,
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G4double lengthFinal )
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{
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fNoChambers= NoChambers;
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fStartZ= startZ;
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fHalfWidth= widthChamber*0.5;
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fSpacing= spacingZ;
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fHalfLengthFirst= 0.5 * lengthInitial;
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// fHalfLengthLast= lengthFinal;
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if( NoChambers > 1 ){
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fHalfLengthIncr= 0.5 * (lengthFinal-lengthInitial)/(NoChambers-1);
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if( spacingZ < widthChamber ) {
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G4Exception( "ExN02ChamberParameterisation construction: Width > Spacing" );
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}
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}
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}
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ExN02ChamberParameterisation::~ExN02ChamberParameterisation()
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{}
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void ExN02ChamberParameterisation::ComputeTransformation
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(const G4int copyNo,G4VPhysicalVolume *physVol) const
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{
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G4double Zposition= fStartZ + copyNo * fSpacing;
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G4ThreeVector origin(0,0,Zposition);
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physVol->SetTranslation(origin);
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physVol->SetRotation(0);
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}
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void ExN02ChamberParameterisation::ComputeDimensions
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(G4Box & trackerChamber, const G4int copyNo,
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const G4VPhysicalVolume * physVol) const
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{
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G4double halfLength= fHalfLengthFirst + (copyNo-1) * fHalfLengthIncr;
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trackerChamber.SetXHalfLength(halfLength);
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trackerChamber.SetYHalfLength(halfLength);
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trackerChamber.SetZHalfLength(fHalfWidth);
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}
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