-#ifndef ALIRICH_H
-#define ALIRICH_H
+#ifndef AliRICH_h
+#define AliRICH_h
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* See cxx source for full Copyright notice */
-/* $Id$ */
-
-
-////////////////////////////////////////////////
-// Manager and hits classes for set:RICH //
-////////////////////////////////////////////////
-#include "AliDetector.h"
-#include "AliRICHConst.h"
-#include "AliRICHChamber.h"
-static const int kNCH=7;
-
-
-class AliRICHHit;
-class AliRICHPadHit;
-class AliRICHRawCluster;
-class AliRICHRecHit;
-class AliRICHClusterFinder;
-class AliRICHDetect;
-class AliRICHChamber;
-class AliRICHCerenkov;
-class AliRICHSegmentation;
-class AliRICHResponse;
-class AliRICHEllipse;
-class AliRICHGeometry;
-
-class AliRICH : public AliDetector {
- public:
- AliRICH();
- AliRICH(const char *name, const char *title);
- AliRICH(const AliRICH& RICH);
- virtual ~AliRICH();
- virtual void AddHit(Int_t track, Int_t *vol, Float_t *hits);
- virtual void AddCerenkov(Int_t track, Int_t *vol, Float_t *cerenkovs);
- virtual void AddPadHit(Int_t *clhits);
- virtual void AddDigits(Int_t id, Int_t *tracks, Int_t *charges, Int_t *digits);
- virtual void AddRawCluster(Int_t id, const AliRICHRawCluster& cluster);
- virtual void AddRecHit(Int_t id, Float_t* rechit);
-
-
- virtual void BuildGeometry();
- virtual void CreateGeometry() {}
- virtual void CreateMaterials() {}
- virtual void StepManager();
- Int_t DistancetoPrimitive(Int_t px, Int_t py);
- virtual Int_t IsVersion() const =0;
-//
- TClonesArray *PadHits() {return fPadHits;}
- TClonesArray *Cerenkovs() {return fCerenkovs;}
- virtual void MakeBranch(Option_t *opt=" ");
- void SetTreeAddress();
- virtual void ResetHits();
- virtual void ResetDigits();
- virtual void ResetRawClusters();
- virtual void ResetRecHits();
- virtual void FindClusters(Int_t nev,Int_t lastEntry);
- virtual void Digitise(Int_t nev,Int_t flag,Option_t *opt=" ",Text_t *name=" ");
-//
-// Configuration Methods (per station id)
-//
-// Set Chamber Segmentation Parameters
-// id refers to the station and isec to the cathode plane
-// Set Segmentation and Response Model
- virtual void SetGeometryModel(Int_t id, AliRICHGeometry *geometry);
- virtual void SetSegmentationModel(Int_t id, AliRICHSegmentation *segmentation);
- virtual void SetResponseModel(Int_t id, AliRICHResponse *response);
- virtual void SetNsec(Int_t id, Int_t nsec);
-// Set Reconstruction Model
- virtual void SetReconstructionModel(Int_t id, AliRICHClusterFinder *reconstruction);
-// Response Simulation
- virtual Int_t MakePadHits(Float_t xhit,Float_t yhit,Float_t eloss,Int_t id, ResponseType res);
-// Return reference to Chamber #id
- virtual AliRICHChamber& Chamber(Int_t id) {return *((AliRICHChamber *) (*fChambers)[id]);}
-// Retrieve pad hits for a given Hit
- virtual AliRICHPadHit* FirstPad(AliRICHHit *hit, TClonesArray *clusters);
- virtual AliRICHPadHit* NextPad(TClonesArray *clusters);
-// Return pointers to digits
- TObjArray *Dchambers() {return fDchambers;}
- Int_t *Ndch() {return fNdch;}
- virtual TClonesArray *DigitsAddress(Int_t id) {return ((TClonesArray *) (*fDchambers)[id]);}
-// Return pointers to rec. hits
- TObjArray *RecHits() {return fRecHits;}
- Int_t *Nrechits() {return fNrechits;}
- virtual TClonesArray *RecHitsAddress(Int_t id) {return ((TClonesArray *) (*fRecHits)[id]);}
-// Return pointers to reconstructed clusters
- virtual TClonesArray *RawClustAddress(Int_t id) {return ((TClonesArray *) (*fRawClusters)[id]);}
-// Assignment operator
- AliRICH& operator=(const AliRICH& rhs);
-
-
- protected:
- TObjArray *fChambers; // List of Tracking Chambers
- Int_t fNPadHits; // Number of clusters
- Int_t fNcerenkovs; // Number of cerenkovs
- TClonesArray *fPadHits; // List of clusters
- TObjArray *fDchambers; // List of digits
- TClonesArray *fCerenkovs; // List of cerenkovs
- Int_t *fNdch; // Number of digits
- Text_t *fFileName; // Filename for event mixing
- TObjArray *fRawClusters; // List of raw clusters
- TObjArray *fRecHits; // List of rec. hits
- Int_t *fNrawch; // Number of raw clusters
- Int_t *fNrechits; // Number of rec hits
-
- protected:
-
- ClassDef(AliRICH,1) //Hits manager for set:RICH
-};
-#endif
-
-
-
-
-
-
-
+#include <Riostream.h>
+#include <TClonesArray.h>
+#include <TObjArray.h>
+#include <TVector.h>
+#include <TVector3.h>
+#include "AliRICHDigitizer.h"
+#include "AliRICHParam.h"
+#include <AliDetector.h>
+#include <AliDigit.h>
+#include <AliHit.h>
+//__________________AliRICHhit______________________________________________________________________
+class AliRICHhit : public AliHit
+{
+public:
+ AliRICHhit():AliHit(),fChamber(kBad),fEloss(kBad) {fInX3.SetXYZ(0,0,0);fOutX3.SetXYZ(0,0,0);}
+ AliRICHhit(Int_t c,Int_t tid,TVector3 in,TVector3 out,Double_t e):AliHit(0,tid)
+ {fChamber=c;fInX3=in; fOutX3=out;fEloss=e; fX=out.X();fY=out.Y();fZ=out.Z();}
+ virtual ~AliRICHhit() {;}
+ Int_t C() const{return fChamber;} //chamber number
+ Int_t Chamber() const{return fChamber;} //chamber number
+ Float_t Eloss() const{return fEloss;} //energy lost by track inside amplification gap
+ TVector3 InX3() const{return fInX3;} //track position at the faceplane of the gap
+ TVector3 OutX3() const{return fOutX3;} //track position at the backplane of the gap
+ Double_t Length() const{return (fOutX3-fInX3).Mag();} //track length inside the amplification gap
+ void Print(Option_t *option="")const; //virtual
+protected:
+ Int_t fChamber; //chamber number
+ Double_t fEloss; //ionisation energy lost in GAP
+ TVector3 fInX3; //position at the entrance of the GAP
+ TVector3 fOutX3; //position at the exit of the GAP
+ ClassDef(AliRICHhit,2) //RICH hit class
+};//class AliRICHhit
+//__________________AliRICHdigit____________________________________________________________________
+class AliRICHdigit :public AliDigit
+{
+public:
+ AliRICHdigit():AliDigit(),fCFM(0),fChamber(0),fPadX(0),fPadY(0),fQdc(kBad){fTracks[0]=fTracks[1]=fTracks[2]=kBad;}
+ AliRICHdigit(Int_t c,TVector pad,Double_t q,Int_t cfm,Int_t tid0,Int_t tid1,Int_t tid2)
+ {fPadX=(Int_t)pad[0];fPadY=(Int_t)pad[1];fQdc=q;fChamber=10*c+AliRICHParam::Pad2Sec(pad);fCFM=cfm;fTracks[0]=tid0;fTracks[1]=tid1;fTracks[2]=tid2;}
+ virtual ~AliRICHdigit() {;}
+ Int_t Compare(const TObject *pObj) const
+ {if(Id()==((AliRICHdigit*)pObj)->Id())return 0;else if(Id()>((AliRICHdigit*)pObj)->Id())return 1;else return -1;} //virtual
+ virtual Bool_t IsSortable() const{return kTRUE;} //sort interface
+ virtual void Print(Option_t *option="") const; //virtual
+ Int_t ChFbMi() const{return fCFM;} //particle mixture for this digit
+ Int_t C() const{return fChamber/10;} //chamber number
+ Int_t S() const{return fChamber-(fChamber/10)*10;} //sector number
+ Int_t X() const{return fPadX;} //x position of the pad
+ Int_t Y() const{return fPadY;} //y postion of the pad
+ TVector Pad() const{Float_t v[2]={fPadX,fPadY}; return TVector(2,v);}
+ Int_t Id() const{return fChamber*10000000+fPadX*1000+fPadY;} //absolute id of this pad
+ Double_t Q() const{return fQdc;} //charge in terms of ADC channels
+ void AddTidOffset(Int_t offset)
+ {for (Int_t i=0; i<3; i++) if (fTracks[i]>0) fTracks[i]+=offset;};
+protected:
+ Int_t fCFM; //1000000*Ncerenkovs+1000*Nfeedbacks+Nmips
+ Int_t fChamber; //10*chamber number+ sector number
+ Int_t fPadX; //pad number along X
+ Int_t fPadY; //pad number along Y
+ Double_t fQdc; //QDC value, fractions are permitted for summable procedure
+ ClassDef(AliRICHdigit,3) //RICH digit class
+};//class AliRICHdigit
+//__________________AliRICHcluster__________________________________________________________________
+class AliRICHcluster :public TObject
+{
+public:
+ enum ClusterStatus {kEdge,kShape,kSize,kRaw,kResolved,kEmpty=kBad};
+ AliRICHcluster():TObject(),fCFM(0),fSize(0),fShape(0),fQdc(0),fChamber(0),fX(0),fY(0),fStatus(kEmpty),fDigits(0) {}
+ virtual ~AliRICHcluster() {AliDebug(1,"Start");/*Reset();*/}
+ void Reset() {DeleteDigits();fCFM=fSize=fShape=fQdc=fChamber=0;fX=fY=0;fStatus=kEmpty;} //cleans the cluster
+ void DeleteDigits() {if(fDigits) {delete fDigits;} fDigits=0;} //deletes the list of digits
+ AliRICHcluster& operator=(const AliRICHcluster&) {return *this;}
+ Int_t Nlocals() const{return fSize-10000*(fSize/10000);} //number of local maximums
+ Int_t Size() const{return fSize/10000;} //number of digits in cluster
+ Int_t Fsize() const{return fSize;} //
+ Int_t Shape() const{return fShape;} //cluster shape rectangulare
+ Int_t C() const{return fChamber/10;} //chamber number
+ Int_t S() const{return fChamber-(fChamber/10)*10;} //sector number
+ Int_t Fchamber() const{return fChamber;} //
+ Int_t Q() const{return fQdc;} //cluster charge in QDC channels
+ Double_t X() const{return fX;} //cluster x position in LRS
+ Double_t Y() const{return fY;} //cluster y position in LRS
+ Int_t Status() const{return fStatus;} //
+ void SetStatus(Int_t status) {fStatus=status;} //
+ Int_t Nmips() const{return fCFM-1000000*Ncerenkovs()-1000*Nfeedbacks();} //
+ Int_t Ncerenkovs() const{return fCFM/1000000;} //
+ Int_t Nfeedbacks() const{return (fCFM-1000000*Ncerenkovs())/1000;} //
+ Bool_t IsPureMip() const{return fCFM<1000;} //
+ Bool_t IsPureCerenkov() const{return Nmips()==0&&Nfeedbacks()==0;} //
+ Bool_t IsPureFeedback() const{return Nmips()==0&&Ncerenkovs()==0;} //
+ Bool_t IsSingleMip() const{return Nmips()==1&&Ncerenkovs()==0&&Nfeedbacks()==0;} //
+ Bool_t IsSingleCerenkov() const{return Nmips()==0&&Ncerenkovs()==1&&Nfeedbacks()==0;} //
+ Bool_t IsSingleFeedback() const{return Nmips()==0&&Ncerenkovs()==0&&Nfeedbacks()==1;} //
+ Bool_t IsMip() const{return Nmips()!=0;} //
+ Bool_t IsCerenkov() const{return Ncerenkovs()!=0;} //
+ Bool_t IsFeedback() const{return Nfeedbacks()!=0;} //
+ Int_t CombiPid() const{return fCFM;} //
+ void CFM(Int_t c,Int_t f,Int_t m) {fCFM=1000000*c+1000*f+m;} //cluster contributors
+ TObjArray* Digits() const{return fDigits;} //
+ virtual void Print(Option_t *option="")const; //
+ inline void AddDigit(AliRICHdigit *pDig); //
+ inline void CoG(Int_t nLocals); //calculates center of gravity
+ void Fill(AliRICHcluster *pRaw,Double_t x,Double_t y,Double_t q,Int_t cfm) //form new resolved cluster from raw one
+ {fCFM=cfm;fChamber=pRaw->Fchamber();fSize=pRaw->Fsize();fQdc=(Int_t)(q*pRaw->Q());fX=x;fY=y;fStatus=kResolved;}
+ Double_t DistTo(TVector2 x) const{return TMath::Sqrt((x.X()-fX)*(x.X()-fX)+(x.Y()-fY)*(x.Y()-fY));} //distance to given point
+ Double_t DistX(TVector2 x) const{return (x.X()-fX);} //distance in x to given point
+ Double_t DistY(TVector2 x) const{return (x.Y()-fY);} //distance to given point
+protected:
+ Int_t fCFM; //1000000*Ncerenkovs+1000*Nfeedbacks+Nmips
+ Int_t fSize; //10000*(how many digits belong to this cluster) + nLocalMaxima
+ Int_t fShape; //100*xdim+ydim box containing the cluster
+ Int_t fQdc; //QDC value
+ Int_t fChamber; //10*module number+sector number
+ Double_t fX; //local x postion
+ Double_t fY; //local y postion
+ Int_t fStatus; //flag to mark the quality of the cluster
+ TObjArray *fDigits; //! list of digits forming this cluster
+ ClassDef(AliRICHcluster,2) //RICH cluster class
+};//class AliRICHcluster
+//__________________________________________________________________________________________________
+void AliRICHcluster::AddDigit(AliRICHdigit *pDig)
+{
+// Adds a given digit to the list of digits belonging to this cluster
+ if(!fDigits) {fQdc=fSize=fCFM=0;fDigits = new TObjArray;}
+ fQdc+=(Int_t)pDig->Q(); fDigits->Add(pDig);
+ fChamber=10*pDig->C()+pDig->S();
+ fSize+=10000;
+ fStatus=kRaw;
+}
+//__________________________________________________________________________________________________
+void AliRICHcluster::CoG(Int_t nLocals)
+{
+// Calculates naive cluster position as a center of gravity of its digits.
+ Float_t xmin=999,ymin=999,xmax=0,ymax=0;
+ fX=fY=0;
+ for(Int_t iDig=0;iDig<Size();iDig++) {
+ AliRICHdigit *pDig=(AliRICHdigit*)fDigits->At(iDig);
+ TVector pad=pDig->Pad(); Double_t q=pDig->Q();
+ TVector2 x2=AliRICHParam::Pad2Loc(pad);
+ fX += x2.X()*q;fY +=x2.Y()*q;
+ if(pad[0]<xmin)xmin=pad[0];if(pad[0]>xmax)xmax=pad[0];if(pad[1]<ymin)ymin=pad[1];if(pad[1]>ymax)ymax=pad[1];
+ }
+ fX/=fQdc;fY/=fQdc;//Center of Gravity
+ fShape=Int_t(100*(xmax-xmin+1)+ymax-ymin+1);//find box containing cluster
+ fSize+=nLocals;
+ fStatus=kRaw;
+}//CoG()
+//__________________AliRICH_________________________________________________________________________
+class AliESD;
+class AliRICH : public AliDetector
+{
+public:
+ AliRICH();
+ AliRICH(const char *name, const char *title);
+ AliRICH(const AliRICH& RICH):AliDetector(RICH) {;} //copy ctor
+ virtual ~AliRICH();
+
+ AliRICH& operator=(const AliRICH&) {return *this;}
+//framework part
+ virtual Int_t IsVersion() const =0; //interface from
+ virtual void StepManager() =0; //interface from AliMC
+ virtual void Hits2SDigits(); //interface from AliSimulation
+ virtual AliDigitizer* CreateDigitizer(AliRunDigitizer* man) const {return new AliRICHDigitizer(man);} //interface from AliSimulation
+// virtual void Reconstruct() const; //interface from AliReconstruction
+// virtual void FillESD(AliESD *pESD) const; //interface from AliReconstruction
+ virtual void SetTreeAddress(); //interface from AliLoader
+ virtual void MakeBranch(Option_t *opt=" "); //interface from AliLoader
+ virtual void CreateMaterials(); //interface from AliMC
+ virtual void CreateGeometry(); //interface from AliMC
+ virtual void BuildGeometry(); //interface
+//private part
+ Float_t AbsoCH4(Float_t x)const; //calculates absorption length for methane
+ Float_t Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)const; //deals with Fresnel absorption
+ inline void CreateHits(); //create hits container as a simple list
+ inline void CreateSDigits(); //create sdigits container as a simple list
+ inline void CreateDigits(); //create digits container as 7 lists, one per chamber
+ inline void CreateClusters(); //create clusters container as 7 lists, one per chamber
+// void ResetHits() {AliDetector::ResetHits();} //virtual
+ void ResetSDigits() {fNsdigits=0; if(fSdigits) fSdigits ->Clear();}
+ void ResetDigits() {if(fDigitsNew)for(int i=0;i<kNchambers;i++){fDigitsNew->At(i)->Clear();fNdigitsNew[i]=0;}} //virtual
+ void ResetClusters() {if(fClusters) for(int i=0;i<kNchambers;i++){fClusters ->At(i)->Clear();fNclusters[i]=0;}}
+ TClonesArray* SDigits() const{return fSdigits;}
+ TClonesArray* Digits(Int_t iC) const{if(fDigitsNew) return (TClonesArray *)fDigitsNew->At(iC-1);else return 0;}
+ TClonesArray* Clusters(Int_t iC) const{if(fClusters) return (TClonesArray *)fClusters->At(iC-1);else return 0;}
+ AliRICHChamber* C(Int_t iC) const{return fpParam->C(iC);} //provides pointer to a given chamber
+ AliRICHParam* P() const{return fpParam;} //provides pointer to a RICH params
+ AliRICH* R() {return this;} //provides pointer to RICH main object
+ TVector Counters() const{return fCounters;} //provides a set of counters
+ void ControlPlots(); //utility
+ virtual void Print(Option_t *option="") const; //prints current RICH status
+ void PrintHits (Int_t iEvent=0); //utility
+ void PrintSDigits (Int_t iEvent=0); //utility
+ void PrintDigits (Int_t iEvent=0); //utility
+ void PrintClusters(Int_t iEvent=0); //utility
+ void PrintTracks (Int_t iEvent=0); //utility
+
+ void AddHit(Int_t c,Int_t tid,TVector3 i3,TVector3 o3,Double_t eloss=0){TClonesArray &tmp=*fHits;new(tmp[fNhits++])AliRICHhit(c,tid,i3,o3,eloss);}
+ inline void AddSDigit(Int_t c,TVector pad,Double_t q,Int_t pid,Int_t tid);
+ void AddDigit(int c,TVector pad,int q,int cfm,int *tid)//Add simulated digit
+ {TClonesArray &tmp=*((TClonesArray*)fDigitsNew->At(c-1));new(tmp[fNdigitsNew[c-1]++])AliRICHdigit(c,pad,q,cfm,tid[0],tid[1],tid[2]);}
+ void AddDigit(Int_t c,TVector pad,Int_t q)//for real data digits
+ {TClonesArray &tmp=*((TClonesArray*)fDigitsNew->At(0));new(tmp[fNdigitsNew[0]++])AliRICHdigit(c,pad,q,0,-1,-1,-1);}
+ void AddCluster(AliRICHcluster &cl)
+ {Int_t c=cl.C()-1;TClonesArray &tmp=*((TClonesArray*)fClusters->At(c));new(tmp[fNclusters[c]++])AliRICHcluster(cl);}
+ AliRICHhit* Hit(Int_t tid); //returns pointer ot RICH hit for a given tid
+protected:
+ enum {kAir=1,kRoha,kSiO2,kC6F14,kCH4,kCsI,kGridCu,kOpSiO2,kGap,kAl,kGlass,kCu,kW,kSteel,kPerpex,kSr90};
+ AliRICHParam *fpParam; //main RICH parametrization
+ //fHits and fDigits belong to AliDetector
+ TClonesArray *fSdigits; //! list of sdigits
+ Int_t fNsdigits; //! current number of sdigits
+
+ TObjArray *fDigitsNew; //! each chamber holds it's one lists of digits
+ Int_t fNdigitsNew[kNchambers]; //! array of current numbers of digits
+
+ TObjArray *fClusters; //! each chamber holds it's one lists of clusters
+ Int_t fNclusters[kNchambers]; //! array of current numbers of raw clusters
+
+ TVector fCounters; //Photon history conters, explanation in StepManager()
+ ClassDef(AliRICH,7) //Main RICH class
+};//class AliRICH
+//__________________________________________________________________________________________________
+void AliRICH::CreateHits()
+{
+ if(fHits) return;
+ AliDebug(1,"creating hits container.");
+ fHits=new TClonesArray("AliRICHhit",10000); fNhits=0;
+}
+//__________________________________________________________________________________________________
+void AliRICH::CreateSDigits()
+{
+ if(fSdigits) return;
+ AliDebug(1,"creating sdigits container.");
+ fSdigits=new TClonesArray("AliRICHdigit",10000); fNsdigits=0;
+}
+//__________________________________________________________________________________________________
+void AliRICH::CreateDigits()
+{
+ if(fDigitsNew) return;
+ AliDebug(1,"creating digits containers.");
+ fDigitsNew = new TObjArray(kNchambers);
+ for(Int_t i=0;i<kNchambers;i++) {fDigitsNew->AddAt(new TClonesArray("AliRICHdigit",10000), i); fNdigitsNew[i]=0;}
+}
+//__________________________________________________________________________________________________
+void AliRICH::CreateClusters()
+{
+ if(fClusters) return;
+ AliDebug(1,"creating clusters containers.");
+ fClusters = new TObjArray(kNchambers);
+ for(Int_t i=0;i<kNchambers;i++) {fClusters->AddAt(new TClonesArray("AliRICHcluster",10000), i); fNclusters[i]=0;}
+}
+//__________________________________________________________________________________________________
+void AliRICH::AddSDigit(Int_t c,TVector pad,Double_t q,Int_t pid,Int_t tid)
+{
+ Int_t cfm;
+ switch(pid){
+ case 50000050: cfm=1000000;break;//cerenkov
+ case 50000051: cfm=1000; break;//feedback
+ default: cfm=1; break;//mip
+ }
+ TClonesArray &tmp=*fSdigits; new(tmp[fNsdigits++])AliRICHdigit(c,pad,q,cfm,tid,kBad,kBad);
+}
+//__________________________________________________________________________________________________
+#endif//#ifndef AliRICH_h
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