* provided "as is" without express or implied warranty. *
**************************************************************************/
-/* $Id$ */
-
-///////////////////////////////////////////////////////////////////////////////
-// //
-// class for RICH reconstruction //
-// //
-///////////////////////////////////////////////////////////////////////////////
-
-
-#include "AliRICHReconstructor.h"
-#include "AliRunLoader.h"
-#include "AliRun.h"
-#include "AliRICHClusterFinder.h"
-
-
+#include "AliRICHReconstructor.h" //class header
+#include "AliRICH.h" //Reconstruct(...)
+#include <AliRawReader.h> //Reconstruct(...)
+#include <AliRun.h> //ConvertDigits uses gAlice
+#include <AliESD.h> //RichAna()
+#include <AliStack.h> //RichAna()
+#include <TFile.h> //RichAna()
+#include <TFile.h> //RichAna()
+#include <TParticle.h> //RichAna()
+#include <TH1F.h> //CluQA()
+#include <TH2F.h> //CluQA()
+#include <TCanvas.h> //CluQA()
+#include <TNtupleD.h> //CheckPR()
ClassImp(AliRICHReconstructor)
-
-//_____________________________________________________________________________
-void AliRICHReconstructor::Reconstruct(AliRunLoader* runLoader) const
+//__________________________________________________________________________________________________
+void AliRICHReconstructor::CluQA(AliRunLoader *pAL)
{
-// reconstruct clusters
-
- AliRICH* rich = GetRICH(runLoader);
- if (!rich) return;
- AliRICHClusterFinder clusterer(rich);
- clusterer.Exec();
+// Quality assesment plots for clusters.
+// This methode takes list of digits and form list of clusters again in order to
+// calculate cluster shape and cluster particle mixture
+ AliLoader *pRL=pAL->GetDetectorLoader("RICH"); AliRICH *pRich=(AliRICH*)pAL->GetAliRun()->GetDetector("RICH");//get pointers for RICH and RICH loader
+ Int_t iNevt=pAL->GetNumberOfEvents(); if(iNevt==0) {AliInfoClass("No events");return;}
+ if(pRL->LoadDigits()) {AliInfoClass("No digits file");return;}
+ pAL->LoadHeader();
+ pAL->LoadKinematics();
+// AliStack *pStack=pAL->Stack();
+ TH1::AddDirectory(kFALSE);
+
+ TH1F *pN =new TH1F("RichCluPerEvt" ,"Number of clusters per event;number" ,100 ,0 ,99 );
+ TH1F* pQ =new TH1F("RichCluQdc" ,"Cluster QDC;q [QDC]" ,4000 ,0 ,4000 );
+ TH1F* pS =new TH1F("RichCluSize" ,"Cluster size;size" ,100 ,0 ,100 );
+ TH2F* pM =new TH2F("RichCluMap" ,"Cluster map;x [cm];y [cm]" ,1000 ,0 ,AliRICHParam::PcSizeX() ,1000,0,AliRICHParam::PcSizeY() );
+
+ TH1F* pMipQ=new TH1F("RichCluMipQdc" ,"MIP QDC;q [QDC]" ,4000 ,0 ,4000 );
+ TH1F* pMipS=new TH1F("RichCluMipSize" ,"MIP size;size" ,100 ,0 ,100 );
+ TH2F* pMipM=new TH2F("RichCluMipMap" ,"MIP map;x [cm];y [cm]" ,1000 ,0 ,AliRICHParam::PcSizeX() ,1000,0,AliRICHParam::PcSizeY() );
+
+ TH1F* pCerQ=new TH1F("RichCluCerQdc" ,"Ckov QDC;q [QDC]" ,4000 ,0 ,4000 );
+ TH1F* pCerS=new TH1F("RichCluCerSize" ,"Ckov size;size" ,100 ,0 ,100 );
+ TH2F* pCerM=new TH2F("RichCluCerMap" ,"Ckov map;x [cm];y [cm]" ,1000 ,0 ,AliRICHParam::PcSizeX() ,1000,0,AliRICHParam::PcSizeY() );
+
+ TH1F* pFeeQ=new TH1F("RichCluFeeQdc" ,"Fee QDC;q [QDC]" ,4000 ,0 ,4000);
+ TH1F* pFeeS=new TH1F("RichCluFeeSize" ,"Fee size;size" ,100 ,0 ,100 );
+ TH2F* pFeeM=new TH2F("RichCluFeeMap" ,"Fee map;x [cm];y [cm]" ,1000 ,0 ,AliRICHParam::PcSizeX() ,1000,0,AliRICHParam::PcSizeY() );
+
+
+ TClonesArray *pCluLst=new TClonesArray("AliRICHCluster");//tmp list of clusters
+
+ for(Int_t iEvtN=0; iEvtN<iNevt; iEvtN++){
+ pAL->GetEvent(iEvtN);
+ pRL->TreeD()->GetEntry(0);
+ for(Int_t iChN=1;iChN<=7;iChN++){//chambers loop
+ if(pRich->Digs(iChN)->GetEntriesFast()>0) Dig2Clu(pRich->Digs(iChN),pCluLst,kFALSE);//cluster finder for the current chamber if any digits present
+ }//chambers loop
+
+ pCluLst->Print();
+ for(Int_t iCluN=0 ; iCluN < pCluLst->GetEntriesFast() ; iCluN++){
+ AliRICHCluster *pClu = (AliRICHCluster*)pCluLst->At(iCluN);
+ Int_t iNckov=0,iNfee=0,iNmip=0;
+ pQ ->Fill(pClu->Q()) ; pS ->Fill(pClu->Size()) ; pM ->Fill(pClu->X(),pClu->Y()); //all clusters
+ if(iNckov!=0 && iNfee==0 && iNmip==0) {pCerQ->Fill(pClu->Q()) ; pCerS->Fill(pClu->Size()) ; pCerM ->Fill(pClu->X(),pClu->Y());}//ckov only cluster
+ if(iNckov==0 && iNfee!=0 && iNmip==0) {pFeeQ->Fill(pClu->Q()) ; pFeeS->Fill(pClu->Size()) ; pFeeM ->Fill(pClu->X(),pClu->Y());}//feed only cluster
+ if(iNckov==0 && iNfee==0 && iNmip!=0) {pMipQ->Fill(pClu->Q()) ; pMipS->Fill(pClu->Size()) ; pMipM ->Fill(pClu->X(),pClu->Y());}//mip only cluster
+
+ }//clusters loop
+ }//events loop
+
+ pRL->UnloadDigits(); pAL->UnloadKinematics(); pAL->UnloadHeader();
+ TCanvas *pC=new TCanvas("RichCluQA",Form("QA for cluster from %i events",iNevt),1000,900); pC->Divide(3,3);
+ pC->cd(1); pN->Draw(); pC->cd(2); pQ->Draw(); pC->cd(3); pS->Draw();
+ pC->cd(4); pN->Draw(); pC->cd(5); pMipQ->Draw(); pC->cd(6); pMipS->Draw();
+ pC->cd(7); pN->Draw(); pC->cd(8); pCerQ->Draw(); pC->cd(9); pCerS->Draw();
+}//CluQA()
+//__________________________________________________________________________________________________
+void AliRICHReconstructor::CheckPR()
+{
+//Pattern recognition with stack particles
+ TFile *pFile = new TFile("$(HOME)/RPR.root","RECREATE","RICH Pattern Recognition");
+ TNtupleD *hn = new TNtupleD("hn","ntuple","Pmod:Charge:TrackTheta:TrackPhi:TrackX:TrackY:MinX:MinY:ChargeMIP:ThetaCerenkov:NPhotons:MipIndex:Chamber:Particle");
+// printf("\n\n");
+// printf("Pattern Recognition done for event %5i",0);
+ AliRICH *pRich=((AliRICH*)gAlice->GetDetector("RICH"));
+ AliMagF * magf = gAlice->Field();
+ AliTracker::SetFieldMap(magf,kTRUE);
+ for(Int_t iEvtN=0;iEvtN<pRich->GetLoader()->GetRunLoader()->GetNumberOfEvents();iEvtN++) {
+ pRich->GetLoader()->GetRunLoader()->GetEvent(iEvtN);
+ AliRICHTracker *tr = new AliRICHTracker();
+ tr->RecWithStack(hn);
+ AliInfoClass(Form("Pattern Recognition done for event %i \b",iEvtN));
+// printf("\b\b\b\b\b%5i",iEvtN+1);
+ }
+ printf("\n\n");
+ pFile->Write();pFile->Close();
}
+//__________________________________________________________________________________________________
+void AliRICHReconstructor::Dig2Clu(TClonesArray *pDigLst,TClonesArray *pCluLst,Bool_t isTryUnfold)
+{
+//Finds all clusters for a given digits list provided not empty. Currently digits list is a list of all digits for a single chamber.
+//If pStack not 0 then also finds Ckov-Fee-Mip composition for formed clusters.
+//Puts all found clusters in the given clusters list.
+//Arguments: pDigLst - list of digits provided not empty
+// pCluLst - list of clusters, provided empty
+// isTryUnfold - flag to choose between CoG and Mathieson fitting
+// Returns: none
+ TMatrixF digMap(1,AliRICHParam::NpadsX(),1,AliRICHParam::NpadsY()); digMap=(Float_t)-1; //digit map for one chamber reseted to -1
+ for(Int_t iDigN=0 ; iDigN < pDigLst->GetEntriesFast() ; iDigN++){ //digits loop to fill digits map
+ AliRICHDigit *pDig= (AliRICHDigit*)pDigLst->At(iDigN); //get current digit
+ digMap( pDig->PadX(), pDig->PadY() )=iDigN; //fill the map, (padx,pady) cell takes digit number
+ } //digits loop to fill digits map
+
+ AliRICHCluster clu; //tmp cluster to be used as current
+
+ for(Int_t iDigN=0;iDigN<pDigLst->GetEntriesFast();iDigN++){ //digits loop to form clusters list
+ AliRICHDigit *pDig=(AliRICHDigit*)pDigLst->At(iDigN); //take current digit
+ if(!(pDig=UseDig(pDig->PadX(),pDig->PadY(),pDigLst,&digMap))) continue; //this digit is already taken in FormClu(), go after next digit
+ FormClu(&clu,pDig,pDigLst,&digMap); //form cluster starting from this digit by recursion
+ clu.Solve(pCluLst,isTryUnfold); //solve this cluster and add all unfolded clusters to provided list
+ clu.Reset(); //empty current cluster
+ } //digits loop to form clusters list
+}//Dig2Clu()
+//__________________________________________________________________________________________________
+void AliRICHReconstructor::FormClu(AliRICHCluster *pClu,AliRICHDigit *pDig,TClonesArray *pDigLst,TMatrixF *pDigMap)
+{
+//Forms the initial cluster as a sum of all adjascent digits. Starts from the given digit
+//then calls itself recursevly for all neighbours.
+//Arguments: pClu - pointer to cluster being formed
+// Returns: none
+ pClu->DigAdd(pDig);//take this digit in cluster
-//_____________________________________________________________________________
-void AliRICHReconstructor::FillESD(AliRunLoader* /*runLoader*/,
- AliESD* /*esd*/) const
+ Int_t x[4],y[4];
+
+ Int_t iNnei=AliRICHParam::PadNeighbours(pDig->PadX(),pDig->PadY(),x,y);//returns in x,y all possible neighbours of the given padx,pady
+ for (Int_t i=0;i<iNnei;i++)
+ if((pDig=UseDig(x[i],y[i],pDigLst,pDigMap))) FormClu(pClu,pDig,pDigLst,pDigMap); //check if this neighbour hit and mark it as taken
+}//FormClu()
+//__________________________________________________________________________________________________
+void AliRICHReconstructor::Reconstruct(AliRunLoader *pAL)const
{
-// nothing to be done
+//Invoked by AliReconstruction to convert digits to clusters i.e. reconstruct simulated data
+//Arguments: pAL - ALICE run loader pointer
+// Returns: none
+ AliDebug(1,"Start.");
+ AliLoader *pRL=pAL->GetDetectorLoader("RICH");
+ AliRICH *pRich=(AliRICH*)pAL->GetAliRun()->GetDetector("RICH");//get pointers for RICH and RICH loader
+ pRL->LoadDigits();
+ pRL->LoadRecPoints("recreate");
+
+ for(Int_t iEvtN=0;iEvtN<pAL->GetNumberOfEvents();iEvtN++){//events loop
+ pAL->GetEvent(iEvtN++); AliDebug(1,Form("Processing event %i...",iEvtN)); //switch current directory to next event
+ pRL->TreeD()->GetEntry(0); pRL->MakeTree("R"); pRich->MakeBranch("R"); //load digits to memory and create branches for clusters
+ for(Int_t iChN=1;iChN<=7;iChN++){//chambers loop
+ if(pRich->Digs(iChN)->GetEntriesFast()>0) Dig2Clu(pRich->Digs(iChN),pRich->Clus(iChN));//cluster finder for the current chamber if any digits present
+ }//chambers loop
+ pRL->TreeR()->Fill(); //fill tree for current event
+ pRL->WriteRecPoints("OVERWRITE");//write out clusters for current event
+ pRich->DigReset(); pRich->CluReset();
+ }//events loop
-}
+ pRL->UnloadDigits();
+ pRL->UnloadRecPoints();
+
+ AliDebug(1,"Stop.");
+}//Reconstruct(for simulated digits)
+//__________________________________________________________________________________________________
+void AliRICHReconstructor::Reconstruct(AliRunLoader *pAL,AliRawReader* pRR)const
+{
+//Invoked by AliReconstruction to convert raw digits from DDL files to clusters
+//Arguments: pAL - ALICE run loader pointer
+// pRR - ALICE raw reader pointer
+// Returns: none
+ AliLoader *pRL=pAL->GetDetectorLoader("RICH"); AliRICH *pRich=(AliRICH*)pAL->GetAliRun()->GetDetector("RICH");//get pointers for RICH and RICH loader
+
+ AliRICHDigit dig; //tmp digit, raw digit will be converted to it
+ TClonesArray *pDigList=new TClonesArray("AliRICHDigit"); Int_t iDigCnt=0; //tmp list of digits for single chamber only
+
+ Int_t iEvtN=0;
+ while(pRR->NextEvent()){//events loop
+ pAL->GetEvent(iEvtN++);
+ pRL->MakeTree("R"); pRich->MakeBranch("R");
+
+ for(Int_t iChN=1;iChN<=7;iChN++){//chambers loop
+ pRR->Select(AliRICHDigit::kRichRawId,2*iChN-2,2*iChN-1);//select only DDL files for the current chamber
+ UInt_t w32=0;
+ while(pRR->ReadNextInt(w32)){//raw records loop (in selected DDL files)
+ UInt_t ddl=pRR->GetDDLID(); //returns 0,1,2 ... 13
+ dig.Raw2Dig(ddl,w32);
+ AliDebug(1,Form("Ch=%i DDL=%i raw=0x%x digit=(%3i,%3i,%3i,%3i) Q=%5.2f",iChN,ddl,w32,dig.C(),dig.S(),dig.PadX(),dig.PadY(),dig.Qdc()));
+ new((*pDigList)[iDigCnt++]) AliRICHDigit(dig); //add this digit to the tmp list
+ }//raw records loop
+ if(iDigCnt) Dig2Clu(pDigList,pRich->Clus(iChN));//cluster finder for the current chamber if any digits present
+ pRR->Reset();
+ pDigList->Delete(); iDigCnt=0;//clean up list of digits for the current chamber
+ }//chambers loop
+ pRL->TreeR()->Fill(); //fill tree for current event
+ pRL->WriteRecPoints("OVERWRITE");//write out clusters for current event
+ pRich->CluReset();
+ }//events loop
+ pRL->UnloadRecPoints();
+}//Reconstruct raw data
+//__________________________________________________________________________________________________
+void AliRICHReconstructor::RichAna(Int_t iNevMin,Int_t iNevMax,Bool_t askPatRec)
+{
+ TFile *pFile=TFile::Open("AliESDs.root","read");
+ if(!pFile || !pFile->IsOpen()) {AliInfoClass("ESD file not open.");return;} //open AliESDs.root
+ TTree *pTree = (TTree*) pFile->Get("esdTree");
+ if(!pTree){AliInfoClass("ESD not found.");return;} //get ESD tree
+ AliInfoClass("ESD found. Go ahead!");
+
+ AliRICH *pRich=((AliRICH*)gAlice->GetDetector("RICH"));
+ AliMagF * magf = gAlice->Field();
+ AliTracker::SetFieldMap(magf,kTRUE);
+ pRich->GetLoader()->GetRunLoader()->LoadHeader();
+ pRich->GetLoader()->GetRunLoader()->LoadKinematics();
+ TString var1 = "Pmod:Charge:TrackTheta:TrackPhi:MinX:MinY:ThetaCerenkov:NPhotons:";
+ TString var2 = "ChargeMIP:Chamber:TOF:LengthTOF:prob1:prob2:prob3:";
+ TString var3 = "ErrPar1:ErrPar2:ErrPar3:Th1:Th2:Th3:nPhotBKG:pdgCode";
+ TString varList = var1+var2+var3;
+
+ Double_t dx,dy;
+ Double_t hnvec[30];
-//_____________________________________________________________________________
-AliRICH* AliRICHReconstructor::GetRICH(AliRunLoader* runLoader) const
-{
-// get the RICH detector
+// TFile *pFileRA = new TFile("$(HOME)/RichAna.root","RECREATE","RICH Pattern Recognition");
+ TFile *pFileRA = new TFile("./RichAna.root","RECREATE","RICH Pattern Recognition");
+ TNtupleD *hn = new TNtupleD("hn","ntuple",varList);
+ if(iNevMin<0) iNevMin=0;
+ if(iNevMin>iNevMax) {iNevMin=0;iNevMax=0;}
+ if(iNevMax==0) iNevMax=999999;
+ if(pRich->GetLoader()->GetRunLoader()->GetNumberOfEvents()<iNevMax) iNevMax = pRich->GetLoader()->GetRunLoader()->GetNumberOfEvents();
+ AliESD *pESD=new AliESD; pTree->SetBranchAddress("ESD", &pESD);
+ for(Int_t iEvtN=iNevMin;iEvtN<iNevMax;iEvtN++) {
+ pTree->GetEvent(iEvtN);
+ pRich->GetLoader()->GetRunLoader()->GetEvent(iEvtN);
+ pRich->GetLoader()->LoadRecPoints();
+ pRich->GetLoader()->TreeR()->GetEntry(0);
+ AliStack *pStack = pRich->GetLoader()->GetRunLoader()->Stack();
+//Pattern recognition started
+ if(pESD->GetNumberOfTracks()) {
+ Int_t iNtracks=pESD->GetNumberOfTracks();
+ AliInfoClass(Form("Start with %i tracks",iNtracks));
+ for(Int_t iTrackN=0;iTrackN<iNtracks;iTrackN++){//ESD tracks loop
+ if(iTrackN%100==0)AliInfoClass(Form("Track %i to be processed",iTrackN));
+ AliRICHTracker *pTrRich = new AliRICHTracker();
+ if(askPatRec==kTRUE) pTrRich->PropagateBack(pESD);
+ AliESDtrack *pTrack = pESD->GetTrack(iTrackN);// get next reconstructed track
+
+ Int_t lab=TMath::Abs(pTrack->GetLabel());
+ TParticle *pPart=pStack->Particle(lab);
+ Int_t code=pPart->GetPdgCode();
- if (!runLoader->GetAliRun()) runLoader->LoadgAlice();
- if (!runLoader->GetAliRun()) {
- Error("GetRICH", "couldn't get AliRun object");
- return NULL;
- }
- AliRICH* rich = (AliRICH*) runLoader->GetAliRun()->GetDetector("RICH");
- if (!rich) {
- Error("GetRICH", "couldn't get RICH detector");
- return NULL;
+ pTrack->GetRICHdxdy(dx,dy);
+ hnvec[0]=pTrack->GetP();
+ hnvec[1]=pTrack->GetSign();
+// cout << " Track momentum " << pTrack->GetP() << " charge " << pTrack->GetSign() << endl;
+
+ pTrack->GetRICHthetaPhi(hnvec[2],hnvec[3]);
+ pTrack->GetRICHdxdy(hnvec[4],hnvec[5]);
+ hnvec[6]=pTrack->GetRICHsignal();
+ hnvec[7]=pTrack->GetRICHnclusters();
+ hnvec[9]=pTrack->GetRICHcluster()/1000000;
+ hnvec[8]=pTrack->GetRICHcluster()-hnvec[9]*1000000;
+ hnvec[10]=pTrack->GetTOFsignal();
+ hnvec[11]=pTrack->GetIntegratedLength();
+ Double_t prob[5];
+ pTrack->GetRICHpid(prob);
+ hnvec[12]=prob[0]+prob[1]+prob[2];
+ hnvec[13]=prob[3];
+ hnvec[14]=prob[4];
+ hnvec[15]=pTrRich->fErrPar[2];
+ hnvec[16]=pTrRich->fErrPar[3];
+ hnvec[17]=pTrRich->fErrPar[4];
+ for(Int_t i=0;i<3;i++) {
+ Double_t mass = AliRICHParam::fgMass[i+2];
+ Double_t refIndex=AliRICHParam::Instance()->IdxC6F14(AliRICHParam::EckovMean());
+ Double_t cosThetaTh = TMath::Sqrt(mass*mass+pTrack->GetP()*pTrack->GetP())/(refIndex*pTrack->GetP());
+ hnvec[18+i]=0;
+ if(cosThetaTh>=1) continue;
+ hnvec[18+i]= TMath::ACos(cosThetaTh);
+ }
+// if(askPatRec==kTRUE) hnvec[21]=pTrRich->fnPhotBKG; else hnvec[21]=0;
+ hnvec[22]=code;
+ hn->Fill(hnvec);
+ }
+ }
+ AliInfoClass(Form("Pattern Recognition done for event %i",iEvtN));
}
- return rich;
-}
+ pFileRA->Write();pFileRA->Close();// close RichAna.root
+ delete pESD; pFile->Close();//close AliESDs.root
+}//RichAna()
+//__________________________________________________________________________________________________
+void AliRICHReconstructor::Test(Bool_t isTryUnfold)
+{
+// Test the cluster finding algorithm by providing predifined set of digits
+// Arguments: none
+// Returns: none
+ TClonesArray *pDigTst=new TClonesArray("AliRICHDigit"); TClonesArray *pCluTst=new TClonesArray("AliRICHCluster");
+ Int_t iDigCnt=0;
+ Int_t c,padx,pady,qdc;
+//ckov cluster
+ new((*pDigTst)[iDigCnt++]) AliRICHDigit(c=1,padx= 89,pady=13,qdc= 10);
+ new((*pDigTst)[iDigCnt++]) AliRICHDigit(c=1,padx= 90,pady=13,qdc= 7);
+ new((*pDigTst)[iDigCnt++]) AliRICHDigit(c=1,padx= 90,pady=12,qdc= 6);
+ new((*pDigTst)[iDigCnt++]) AliRICHDigit(c=1,padx= 91,pady=12,qdc= 7);
+//mip cluster
+ new((*pDigTst)[iDigCnt++]) AliRICHDigit(c=1,padx= 99,pady=21,qdc= 9);
+ new((*pDigTst)[iDigCnt++]) AliRICHDigit(c=1,padx= 99,pady=22,qdc= 26);
+ new((*pDigTst)[iDigCnt++]) AliRICHDigit(c=1,padx=100,pady=21,qdc= 39);
+ new((*pDigTst)[iDigCnt++]) AliRICHDigit(c=1,padx=100,pady=22,qdc=109);
+ new((*pDigTst)[iDigCnt++]) AliRICHDigit(c=1,padx=100,pady=23,qdc= 7);
+ new((*pDigTst)[iDigCnt++]) AliRICHDigit(c=1,padx=101,pady=22,qdc= 11);
+
+ pDigTst->Print("","Initial digit:");
+ Dig2Clu(pDigTst,pCluTst,isTryUnfold);
+ pCluTst->Print("","Solved cluster:");
+ delete pDigTst; delete pCluTst;
+}//Test()
+//__________________________________________________________________________________________________
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff