+++ /dev/null
-// **************************************************************************
-// * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
-// * *
-// * Author: The ALICE Off-line Project. *
-// * Contributors are mentioned in the code where appropriate. *
-// * *
-// * Permission to use, copy, modify and distribute this software and its *
-// * documentation strictly for non-commercial purposes is hereby granted *
-// * without fee, provided that the above copyright notice appears in all *
-// * copies and that both the copyright notice and this permission notice *
-// * appear in the supporting documentation. The authors make no claims *
-// * about the suitability of this software for any purpose. It is *
-// * provided "as is" without express or implied warranty. *
-// **************************************************************************
-
-#include "AliRICHChamber.h"
-#include <TRotMatrix.h>
-#include <AliLog.h>
-#include "AliRICHParam.h"
-
-ClassImp(AliRICHChamber)
-//______________________________________________________________________________
-AliRICHChamber::AliRICHChamber(Int_t iChamber):TNamed()
-{
-//main ctor. Defines all geometry parameters for the given module.
-// 7 6 ^
-// 5 4 3 |
-// 2 1 |
-// <-----z y . x
- if(iChamber!=0){ //if iChamber=0 then special test config: chamber without any shift and rotation
- const Double_t kAngHor=19.5; // horizontal angle between chambers 19.5 grad
- const Double_t kAngVer=20; // vertical angle between chambers 20 grad
- const Double_t kAngCom=30; // common RICH rotation with respect to x axis 20 grad
-
- RotY(90);//rotate around y since initial position is in XY plane
- fRad .SetXYZ(490-2 ,0,0); //position of the entrance to freon 1.5 cm of freon+0.5 cm of quartz window
- fCenter.SetXYZ(490 ,0,0); //shift center along x by 490 cm
- fAnod .SetXYZ(490+8-0.2,0,0); //position of the center of apmlification gap (anod wires plane)
- fPc .SetXYZ(490+8 ,0,0); //position of the center of PC
- switch(iChamber){
- case 1:
- RotY(kAngHor); RotZ(-kAngVer); //right and down
- break;
- case 2:
- RotZ(-kAngVer); //down
- break;
- case 3:
- RotY(kAngHor); //right
- break;
- case 4:
- break; //no rotation
- case 5:
- RotY(-kAngHor); //left
- break;
- case 6:
- RotZ(kAngVer); //up
- break;
- case 7:
- RotY(-kAngHor); RotZ(kAngVer); //left and up
- break;
- default:
- Fatal("named ctor","Wrong chamber number %i, check CreateChamber ctor",iChamber);
- }//switch(iChamber)
- RotZ(kAngCom); //apply common rotation
- }//if(iChamber
- fName=Form("RICHc%i",iChamber);fTitle=Form("RICH chamber %i",iChamber);
- fpRotMatrix=new TRotMatrix("rot"+fName,"rot"+fName, Rot().ThetaX()*TMath::RadToDeg(), Rot().PhiX()*TMath::RadToDeg(),
- Rot().ThetaY()*TMath::RadToDeg(), Rot().PhiY()*TMath::RadToDeg(),
- Rot().ThetaZ()*TMath::RadToDeg(), Rot().PhiZ()*TMath::RadToDeg());
-}//main ctor
-//__________________________________________________________________________________________________
-void AliRICHChamber::Print(Option_t *opt) const
-{
-// Debug printout
- TNamed::Print(opt);
- fRad.Print(opt);
- fCenter.Print(opt);
- fAnod.Print(opt);
- fPc.Print(opt);
-}//Print()
-//__________________________________________________________________________________________________
+++ /dev/null
-#ifndef AliRICHChamber_h
-#define AliRICHChamber_h
-
-/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * See cxx source for full Copyright notice */
-
-#include <TVector3.h>
-#include <TMath.h>
-#include <TRotation.h>
-#include <TLorentzVector.h>
-#include "AliRICHParam.h"
-class TRotMatrix;
-
-
-class AliRICHChamber : public TNamed
-{
-public:
- AliRICHChamber():TNamed(),fpRotMatrix(0) {;}
- AliRICHChamber(Int_t iChamberN);
- AliRICHChamber(const AliRICHChamber &chamber):TNamed(chamber) {;}
- virtual ~AliRICHChamber() {;}
- AliRICHChamber& operator=(const AliRICHChamber&) {return *this;}
-
- static Double_t AlphaFeedback(Int_t ) {return 0.02;} //determines number of feedback photons updated to 9/11/04 by Di Mauro
-
- TRotMatrix* RotMatrix() const{return fpRotMatrix;}
- TString RotMatrixName() const{return "rot"+fName;}
- TRotation Rot() const{return fRot;}
- Double_t Rho() const{return fCenter.Mag();} //gives distance to chamber center in MRS
- Double_t ThetaD() const{return fCenter.Theta()*TMath::RadToDeg();} //gives polar angle of chamber center in MRS
- Double_t PhiD() const{return fCenter.Phi() *TMath::RadToDeg();} //gives azimuthal angle of chamber center in MRS
- Double_t ThetaXd() const{return fRot.ThetaX() *TMath::RadToDeg();}
- Double_t PhiXd() const{return fRot.PhiX() *TMath::RadToDeg();}
- Double_t ThetaYd() const{return fRot.ThetaY() *TMath::RadToDeg();}
- Double_t PhiYd() const{return fRot.PhiY() *TMath::RadToDeg();}
- Double_t ThetaZd() const{return fRot.ThetaZ() *TMath::RadToDeg();}
- Double_t PhiZd() const{return fRot.PhiZ() *TMath::RadToDeg();}
- void RotX(Double_t a) {a*=TMath::DegToRad();fRot.RotateX(a);fRad.RotateX(a);fCenter.RotateX(a);fAnod.RotateX(a);fPc.RotateX(a);}//degrees around X
- void RotY(Double_t a) {a*=TMath::DegToRad();fRot.RotateY(a);fRad.RotateY(a);fCenter.RotateY(a);fAnod.RotateY(a);fPc.RotateY(a);}//degrees around Y
- void RotZ(Double_t a) {a*=TMath::DegToRad();fRot.RotateZ(a);fRad.RotateZ(a);fCenter.RotateZ(a);fAnod.RotateZ(a);fPc.RotateZ(a);}//degrees around Z
- TVector3 Rad() const{return fRad;} //provides center of radiator position in MRS, cm
- TVector3 Anod() const{return fAnod;} //provides center of anod wires plane in MRS, cm
- TVector3 Pc() const{return fPc;} //provides center of photocathode position in MRS, cm
- TVector3 Center() const{return fCenter;} //provides center of chamber position (exit from quartz window) in MRS, cm
- void Print(Option_t *sOption)const;
- TVector3 PMrs2Loc(TVector3 p3)const{TVector3 ploc=Rot().Invert()*p3;ploc.SetXYZ(-ploc.Px(),ploc.Py(),ploc.Pz()); return ploc;} //momentum MARS-local
-//Transformations for radiator plane
- TVector2 Mrs2Rad(TVector3 x3)const{x3-=fRad;x3.Transform(fRot.Inverse());return TVector2(-x3.X()+0.5*AliRICHParam::PcSizeX(),x3.Y()+0.5*AliRICHParam::PcSizeY());}
- TVector3 Rad2Mrs(TVector2 x2)const{TVector3 x3(-x2.X()+0.5*AliRICHParam::PcSizeX(),x2.Y()-0.5*AliRICHParam::PcSizeY(),0);x3.Transform(fRot); x3+=fRad;return x3;}
-//Transformations for anod wires plane
- TVector2 Mrs2Anod(TVector3 x3)const{x3-=fAnod;x3.Transform(fRot.Inverse());return TVector2(-x3.X()+0.5*AliRICHParam::PcSizeX(),x3.Y()+0.5*AliRICHParam::PcSizeY());}
- TVector3 Anod2Mrs(TVector2 x2)const{TVector3 x3(-x2.X()+0.5*AliRICHParam::PcSizeX(),x2.Y()-0.5*AliRICHParam::PcSizeY(),0);x3.Transform(fRot); x3+=fAnod;return x3;}
-//Transformations for photcathode plane
- TVector2 Mrs2Pc(TVector3 x3)const{x3-=fPc;x3.Transform(fRot.Inverse());return TVector2(-x3.X()+0.5*AliRICHParam::PcSizeX(),x3.Y()+0.5*AliRICHParam::PcSizeY());}
- TVector3 Pc2Mrs(TVector2 x2)const{TVector3 x3(-x2.X()+0.5*AliRICHParam::PcSizeX(),x2.Y()-0.5*AliRICHParam::PcSizeY(),0);x3.Transform(fRot); x3+=fPc;return x3;}
- TVector2 Mrs2Pc(TLorentzVector x4) const{return Mrs2Pc(x4.Vect());}
-protected:
- TVector3 fRad; //radiator entrance center position in MRS (cm)
- TVector3 fCenter; //chamber center position (quartz window exit) in MRS (cm)
- TVector3 fAnod; //anod wires plane center position in MRS (cm)
- TVector3 fPc; //PC center position in MRS (cm)
- TRotation fRot; //chamber rotation in MRS
- TRotMatrix *fpRotMatrix; //rotation matrix of the chamber with respect to MRS
- ClassDef(AliRICHChamber,8) //single RICH chamber description
-};//class AliRICHChamber
-
-#endif //AliRICHChamber_h
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff