+++ /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. *
- **************************************************************************/
-
-//////////////////////////////////////////////////////////////////////////
-// //
-// AliRICHRecon //
-// //
-// RICH class to perfom pattern recognition based on Hough transfrom //
-// for single chamber //
-//////////////////////////////////////////////////////////////////////////
-
-#include "AliRICHRecon.h" //class header
-#include "AliRICHCluster.h" //CkovAngle()
-#include <TRotation.h> //TracePhoton()
-#include <TH1D.h> //HoughResponse()
-#include <TClonesArray.h> //CkovAngle()
-
-#include <TTree.h> //Display()
-#include <TFile.h> //Display()
-#include <AliESD.h> //Display()
-#include <TPolyMarker.h> //Display()
-#include <TLatex.h> //Display()
-#include <TCanvas.h> //Display()
-
-
-const Double_t AliRICHRecon::fgkRadThick=1.5;
-const Double_t AliRICHRecon::fgkWinThick=0.5;
-const Double_t AliRICHRecon::fgkGapThick=8.0;
-const Double_t AliRICHRecon::fgkRadIdx =1.292;
-const Double_t AliRICHRecon::fgkWinIdx =1.5787;
-const Double_t AliRICHRecon::fgkGapIdx =1.0005;
-
-
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-AliRICHRecon::AliRICHRecon():TTask("RichRec","RichPat"),
- fPhotCnt(-1),
- fCkovSigma2(0),
- fIsWEIGHT(kFALSE),
- fDTheta(0.001),
- fWindowWidth(0.045),
- fTrkDir(TVector3(0,0,1)),fTrkPos(TVector2(30,40))
-{
-// main ctor
- for (Int_t i=0; i<3000; i++) {
- fPhotFlag[i] = 0;
- fPhotCkov[i] = -1;
- fPhotPhi [i] = -1;
- fPhotWei [i] = 0;
- }
-}
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Double_t AliRICHRecon::CkovAngle(TClonesArray *pCluLst,Int_t &iNaccepted)
-{
-// Pattern recognition method based on Hough transform
-// Arguments: pCluLst - list of clusters for this chamber
-// Returns: - track ckov angle, [rad],
-
- if(pCluLst->GetEntries()>200) fIsWEIGHT = kTRUE; // offset to take into account bkg in reconstruction
- else fIsWEIGHT = kFALSE;
-
- // Photon Flag: Flag = 0 initial set; Flag = 1 good candidate (charge compatible with photon); Flag = 2 photon used for the ring;
-
- fPhotCnt=0;
- for (Int_t iClu=0; iClu<pCluLst->GetEntriesFast();iClu++){//clusters loop
- AliRICHCluster *pClu=(AliRICHCluster*)pCluLst->UncheckedAt(iClu); //get pointer to current cluster
- if(pClu->Q()>100) continue; //avoid MIP clusters from bkg
-
- fPhotCkov[fPhotCnt]=FindPhotCkov(pClu->X(),pClu->Y()); //find ckov angle for this photon candidate
- fPhotCnt++; //increment counter of photon candidates
- }//clusters loop
-
- iNaccepted=FlagPhot(HoughResponse()); //flag photons according to individual theta ckov with respect to most probable track theta ckov
- if(iNaccepted<1) return -11;
- else return FindRingCkov(pCluLst->GetEntries()); //find best Theta ckov for ring i.e. track
-}//ThetaCerenkov()
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Double_t AliRICHRecon::FindPhotCkov(Double_t cluX,Double_t cluY)
-{
-// Finds Cerenkov angle for this photon candidate
-// Arguments: cluX,cluY - position of cadidate's cluster
-// Returns: Cerenkov angle
-
- TVector2 pos(cluX,cluY); Double_t cluR=(pos-fTrkPos).Mod(); Double_t phi=FindPhotPhi(cluX,cluY);
- Printf("new dist %f phi %f",cluR,phi);
- Double_t ckov1=0,ckov2=0.75;
- const Double_t kTol=0.05;
- Int_t iIterCnt = 0;
- while(1){
- if(iIterCnt>=50) return -1;
- Double_t ckov=0.5*(ckov1+ckov2);
- Double_t dist=cluR-TracePhot(ckov,phi,pos); iIterCnt++; //get distance between trial point and cluster position
- Printf("New: phi %f ckov %f dist %f",phi,ckov,dist);
- if (dist> kTol) ckov1=ckov; //cluster @ larger ckov
- else if(dist<-kTol) ckov2=ckov; //cluster @ smaller ckov
- else return ckov; //precision achived
- }
-}//FindPhotTheta()
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Double_t AliRICHRecon::FindPhotPhi(Double_t cluX,Double_t cluY)
-{
-// Finds phi angle og photon candidate by considering the cluster's position of this candudate w.r.t track position
-
- Double_t emiss=0;
- return fPhotPhi[fPhotCnt]=TMath::ATan2(cluY-fTrkPos.Y()-emiss*TMath::Tan(fTrkDir.Theta())*TMath::Sin(fTrkDir.Phi()),
- cluX-fTrkPos.X()-emiss*TMath::Tan(fTrkDir.Theta())*TMath::Cos(fTrkDir.Phi()));
-}
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Double_t AliRICHRecon::FindRingArea(Double_t ckovAng)const
-{
-// Find area inside the cerenkov ring which lays inside PCs
-// Arguments: ckovThe - cernkov
-// Returns: area of the ring in cm^2 for given theta ckov
-
-
- TVector2 pos1,pos2;
-
- const Int_t kN=100;
- Double_t area=0;
- for(Int_t i=0;i<kN;i++){
- TracePhot(ckovAng,Double_t(TMath::TwoPi()*i /kN),pos1);//trace this photon
- TracePhot(ckovAng,Double_t(TMath::TwoPi()*(i+1)/kN),pos2);//trace this photon
- area+=(pos1-fTrkPos)*(pos2-fTrkPos);
-
- }
- return area;
-}//FindRingArea()
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Double_t AliRICHRecon::FindRingCkov(Int_t)
-{
-// Loops on all Ckov candidates and estimates the best Theta Ckov for a ring formed by those candidates. Also estimates an error for that Theat Ckov
-// collecting errors for all single Ckov candidates thetas. (Assuming they are independent)
-// Arguments: iNclus- total number of clusters in chamber for background estimation
-// Return: best estimation of track Theta ckov
-
- Double_t wei = 0.;
- Double_t weightThetaCerenkov = 0.;
-
- Double_t ckovMin=9999.,ckovMax=0.;
- Double_t sigma2 = 0; //to collect error squared for this ring
-
- for(Int_t i=0;i<fPhotCnt;i++){//candidates loop
- if(fPhotFlag[i] == 2){
- if(fPhotCkov[i]<ckovMin) ckovMin=fPhotCkov[i]; //find max and min Theta ckov from all candidates within probable window
- if(fPhotCkov[i]>ckovMax) ckovMax=fPhotCkov[i];
- weightThetaCerenkov += fPhotCkov[i]*fPhotWei[i]; wei += fPhotWei[i]; //collect weight as sum of all candidate weghts
-
- //Double_t phiref=(GetPhiPoint()-GetTrackPhi());
- if(fPhotCkov[i]<=0) continue;//?????????????????Flag photos = 2 may imply CkovEta = 0??????????????
-
- sigma2 += 1./Sigma2(fPhotCkov[i],fPhotPhi[i]);
- }
- }//candidates loop
-
- if(sigma2>0) fCkovSigma2=1./sigma2;
- else fCkovSigma2=1e10;
-
-
- if(wei != 0.) weightThetaCerenkov /= wei; else weightThetaCerenkov = 0.;
- return weightThetaCerenkov;
-}//FindCkovRing()
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Int_t AliRICHRecon::FlagPhot(Double_t ckov)
-{
-// Flag photon candidates if their individual ckov angle is inside the window around ckov angle returned by HoughResponse()
-// Arguments: ckov- value of most probable ckov angle for track as returned by HoughResponse()
-// Returns: number of photon candidates happened to be inside the window
-
-
- Int_t steps = (Int_t)((ckov )/ fDTheta); //how many times we need to have fDTheta to fill the distance between 0 and thetaCkovHough
-
- Double_t tmin = (Double_t)(steps - 1)*fDTheta;
- Double_t tmax = (Double_t)(steps)*fDTheta;
- Double_t tavg = 0.5*(tmin+tmax);
-
- tmin = tavg - 0.5*fWindowWidth; tmax = tavg + 0.5*fWindowWidth;
-
- Int_t iInsideCnt = 0; //count photons which Theta ckov inside the window
- for(Int_t i=0;i<fPhotCnt;i++){//photon candidates loop
- if(fPhotCkov[i] >= tmin && fPhotCkov[i] <= tmax) {
- fPhotFlag[i]=2;
- iInsideCnt++;
- }
- }
- return iInsideCnt;
-}//FlagPhot()
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Double_t AliRICHRecon::TracePhot(Double_t ckovThe,Double_t ckovPhi,TVector2 &pos)const
-{
-// Trace a single Ckov photon from emission point somewhere in radiator up to photocathode taking into account ref indexes of materials it travereses
-// Arguments: ckovThe,ckovPhi- photon ckov angles, [rad] (warning: not photon theta and phi)
-// Returns: distance between photon point on PC and track projection
- TRotation mtheta; mtheta.RotateY(fTrkDir.Theta());
- TRotation mphi; mphi.RotateZ(fTrkDir.Phi());
- TRotation mrot=mphi*mtheta;
-
- TVector3 posCkov(fTrkPos.X(),fTrkPos.Y(),-0.5*fgkRadThick-fgkWinThick-fgkGapThick); //RAD: photon position is track position @ middle of RAD
- TVector3 dirCkov; dirCkov.SetMagThetaPhi(1,ckovThe,ckovPhi); //initially photon is directed according to requested ckov angle
- dirCkov=mrot*dirCkov; //now we know photon direction in LORS
- dirCkov.SetPhi(ckovPhi);
- if(dirCkov.Theta() > TMath::ASin(1./fgkRadIdx)) return -999;//total refraction on WIN-GAP boundary
-
- Propagate(dirCkov,posCkov,-fgkWinThick-fgkGapThick); //go to RAD-WIN boundary remeber that z=0 is PC plane
- Refract (dirCkov, fgkRadIdx,fgkWinIdx ); //RAD-WIN refraction
- Propagate(dirCkov,posCkov,-fgkGapThick ); //go to WIN-GAP boundary
- Refract (dirCkov, fgkWinIdx,fgkGapIdx ); //WIN-GAP refraction
- Propagate(dirCkov,posCkov,0 ); //go to PC
-
- pos.Set(posCkov.X(),posCkov.Y());
- return (pos-fTrkPos).Mod();
-}//TracePhoton()
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-void AliRICHRecon::Propagate(const TVector3 &dir,TVector3 &pos,Double_t z)const
-{
-// Finds an intersection point between a line and XY plane shifted along Z.
-// Arguments: dir,pos - vector along the line and any point of the line
-// z - z coordinate of plain
-// Returns: none
-// On exit: pos is the position if this intesection if any
- static TVector3 nrm(0,0,1);
- TVector3 pnt(0,0,z);
-
- TVector3 diff=pnt-pos;
- Double_t sint=(nrm*diff)/(nrm*dir);
- pos+=sint*dir;
-}//Propagate()
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-void AliRICHRecon::Refract(TVector3 &dir,Double_t n1,Double_t n2)const
-{
-// Refract direction vector according to Snell law
-// Arguments:
-// n1 - ref idx of first substance
-// n2 - ref idx of second substance
-// Returns: none
-// On exit: dir is new direction
- Double_t sinref=(n1/n2)*TMath::Sin(dir.Theta());
- if(sinref>1.) dir.SetXYZ(-999,-999,-999);
- else dir.SetTheta(TMath::ASin(sinref));
-}//Refract()
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Double_t AliRICHRecon::HoughResponse()
-{
-//
-//
-//
- Double_t kThetaMax=0.75;
- Int_t nChannels = (Int_t)(kThetaMax/fDTheta+0.5);
- TH1D *phots = new TH1D("Rphot" ,"phots" ,nChannels,0,kThetaMax);
- TH1D *photsw = new TH1D("RphotWeighted" ,"photsw" ,nChannels,0,kThetaMax);
- TH1D *resultw = new TH1D("resultw","resultw" ,nChannels,0,kThetaMax);
- Int_t nBin = (Int_t)(kThetaMax/fDTheta);
- Int_t nCorrBand = (Int_t)(fWindowWidth/(2*fDTheta));
-
- for (Int_t i=0; i< fPhotCnt; i++){//photon cadidates loop
- Double_t angle = fPhotCkov[i]; if(angle<0||angle>kThetaMax) continue;
- phots->Fill(angle);
- Int_t bin = (Int_t)(0.5+angle/(fDTheta));
- Double_t weight=1.;
- if(fIsWEIGHT){
- Double_t lowerlimit = ((Double_t)bin)*fDTheta - 0.5*fDTheta; Double_t upperlimit = ((Double_t)bin)*fDTheta + 0.5*fDTheta;
- Double_t diffArea = FindRingArea(upperlimit)-FindRingArea(lowerlimit);
- if(diffArea>0) weight = 1./diffArea;
- }
- photsw->Fill(angle,weight);
- fPhotWei[i]=weight;
- }//photon candidates loop
-
- for (Int_t i=1; i<=nBin;i++){
- Int_t bin1= i-nCorrBand;
- Int_t bin2= i+nCorrBand;
- if(bin1<1) bin1=1;
- if(bin2>nBin)bin2=nBin;
- Double_t sumPhots=phots->Integral(bin1,bin2);
- if(sumPhots<3) continue; // if less then 3 photons don't trust to this ring
- Double_t sumPhotsw=photsw->Integral(bin1,bin2);
- resultw->Fill((Double_t)((i+0.5)*fDTheta),sumPhotsw);
- }
-// evaluate the "BEST" theta ckov as the maximum value of histogramm
- Double_t *pVec = resultw->GetArray();
- Int_t locMax = TMath::LocMax(nBin,pVec);
- phots->Delete();photsw->Delete();resultw->Delete(); // Reset and delete objects
-
- return (Double_t)(locMax*fDTheta+0.5*fDTheta); //final most probable track theta ckov
-}//HoughResponse()
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Double_t AliRICHRecon::Sigma2(Double_t ckovTh, Double_t ckovPh)const
-{
-// Analithical calculation of total error (as a sum of localization, geometrical and chromatic errors) on Cerenkov angle for a given Cerenkov photon
-// created by a given MIP. Fromulae according to CERN-EP-2000-058
-// Arguments: Cerenkov and azimuthal angles for Cerenkov photon, [radians]
-// dip and azimuthal angles for MIP taken at the entrance to radiator, [radians]
-// MIP beta
-// Returns: absolute error on Cerenkov angle, [radians]
-
- TVector3 v(-999,-999,-999);
- Double_t trkBeta = 1./(TMath::Cos(ckovTh)*fgkRadIdx);
-
- v.SetX(SigLoc (ckovTh,ckovPh,trkBeta));
- v.SetY(SigGeom(ckovTh,ckovPh,trkBeta));
- v.SetZ(SigCrom(ckovTh,ckovPh,trkBeta));
-
- return v.Mag2();
-}
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Double_t AliRICHRecon::SigLoc(Double_t thetaC, Double_t phiC,Double_t betaM)const
-{
-// Analithical calculation of localization error (due to finite segmentation of PC) on Cerenkov angle for a given Cerenkov photon
-// created by a given MIP. Fromulae according to CERN-EP-2000-058
-// Arguments: Cerenkov and azimuthal angles for Cerenkov photon, [radians]
-// dip and azimuthal angles for MIP taken at the entrance to radiator, [radians]
-// MIP beta
-// Returns: absolute error on Cerenkov angle, [radians]
- Double_t phiDelta = phiC - fTrkDir.Phi();
-
- Double_t alpha =TMath::Cos(fTrkDir.Theta())-TMath::Tan(thetaC)*TMath::Cos(phiDelta)*TMath::Sin(fTrkDir.Theta());
- Double_t k = 1.-fgkRadIdx*fgkRadIdx+alpha*alpha/(betaM*betaM);
- if (k<0) return 1e10;
-
- Double_t mu =TMath::Sin(fTrkDir.Theta())*TMath::Sin(fTrkDir.Phi())+TMath::Tan(thetaC)*(TMath::Cos(fTrkDir.Theta())*TMath::Cos(phiDelta)*TMath::Sin(fTrkDir.Phi())+TMath::Sin(phiDelta)*TMath::Cos(fTrkDir.Phi()));
- Double_t e =TMath::Sin(fTrkDir.Theta())*TMath::Cos(fTrkDir.Phi())+TMath::Tan(thetaC)*(TMath::Cos(fTrkDir.Theta())*TMath::Cos(phiDelta)*TMath::Cos(fTrkDir.Phi())-TMath::Sin(phiDelta)*TMath::Sin(fTrkDir.Phi()));
-
- Double_t kk = betaM*TMath::Sqrt(k)/(8*alpha);
- Double_t dtdxc = kk*(k*(TMath::Cos(phiDelta)*TMath::Cos(fTrkDir.Phi())-TMath::Cos(fTrkDir.Theta())*TMath::Sin(phiDelta)*TMath::Sin(fTrkDir.Phi()))-(alpha*mu/(betaM*betaM))*TMath::Sin(fTrkDir.Theta())*TMath::Sin(phiDelta));
- Double_t dtdyc = kk*(k*(TMath::Cos(phiDelta)*TMath::Sin(fTrkDir.Phi())+TMath::Cos(fTrkDir.Theta())*TMath::Sin(phiDelta)*TMath::Cos(fTrkDir.Phi()))+(alpha* e/(betaM*betaM))*TMath::Sin(fTrkDir.Theta())*TMath::Sin(phiDelta));
-
- return TMath::Sqrt(0.2*0.2*dtdxc*dtdxc + 0.25*0.25*dtdyc*dtdyc);
-}
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Double_t AliRICHRecon::SigCrom(Double_t thetaC, Double_t phiC,Double_t betaM)const
-{
-// Analithical calculation of chromatic error (due to lack of knowledge of Cerenkov photon energy) on Cerenkov angle for a given Cerenkov photon
-// created by a given MIP. Fromulae according to CERN-EP-2000-058
-// Arguments: Cerenkov and azimuthal angles for Cerenkov photon, [radians]
-// dip and azimuthal angles for MIP taken at the entrance to radiator, [radians]
-// MIP beta
-// Returns: absolute error on Cerenkov angle, [radians]
- Double_t phiDelta = phiC - fTrkDir.Phi();
- Double_t alpha =TMath::Cos(fTrkDir.Theta())-TMath::Tan(thetaC)*TMath::Cos(phiDelta)*TMath::Sin(fTrkDir.Theta());
-
- Double_t dtdn = TMath::Cos(fTrkDir.Theta())*fgkRadIdx*betaM*betaM/(alpha*TMath::Tan(thetaC));
-
- Double_t f = 0.00928*(7.75-5.635)/TMath::Sqrt(12.);
-
- return f*dtdn;
-}//SigCrom()
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Double_t AliRICHRecon::SigGeom(Double_t thetaC, Double_t phiC,Double_t betaM)const
-{
-// Analithical calculation of geometric error (due to lack of knowledge of creation point in radiator) on Cerenkov angle for a given Cerenkov photon
-// created by a given MIP. Formulae according to CERN-EP-2000-058
-// Arguments: Cerenkov and azimuthal angles for Cerenkov photon, [radians]
-// dip and azimuthal angles for MIP taken at the entrance to radiator, [radians]
-// MIP beta
-// Returns: absolute error on Cerenkov angle, [radians]
-
- Double_t phiDelta = phiC - fTrkDir.Phi();
- Double_t alpha =TMath::Cos(fTrkDir.Theta())-TMath::Tan(thetaC)*TMath::Cos(phiDelta)*TMath::Sin(fTrkDir.Theta());
-
- Double_t k = 1.-fgkRadIdx*fgkRadIdx+alpha*alpha/(betaM*betaM);
- if (k<0) return 1e10;
-
- Double_t eTr = 0.5*1.5*betaM*TMath::Sqrt(k)/(8*alpha);
- Double_t lambda = 1.-TMath::Sin(fTrkDir.Theta())*TMath::Sin(fTrkDir.Theta())*TMath::Sin(phiC)*TMath::Sin(phiC);
-
- Double_t c = 1./(1.+ eTr*k/(alpha*alpha*TMath::Cos(thetaC)*TMath::Cos(thetaC)));
- Double_t i = betaM*TMath::Tan(thetaC)*lambda*TMath::Power(k,1.5);
- Double_t ii = 1.+eTr*betaM*i;
-
- Double_t err = c * (i/(alpha*alpha*8) + ii*(1.-lambda) / ( alpha*alpha*8*betaM*(1.+eTr)) );
- Double_t trErr = 1.5/(TMath::Sqrt(12.)*TMath::Cos(fTrkDir.Theta()));
-
- return trErr*err;
-}//SigGeom()
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-void AliRICHRecon::Display()
-{
-// Display digits, reconstructed tracks intersections and RICH rings if available
-// Arguments: none
-// Returns: none
- TFile *pEsdFl=TFile::Open("AliESDs.root"); if(!pEsdFl || !pEsdFl->IsOpen()) return;//open AliESDs.root
- TTree *pEsdTr=(TTree*) pEsdFl->Get("esdTree"); if(!pEsdTr) return;//get ESD tree
-
- AliESD *pEsd=new AliESD; pEsdTr->SetBranchAddress("ESD", &pEsd);
-
- TPolyMarker *pDigMap[7]; //digits map
- TPolyMarker *pTrkMap[7]; Int_t aTrkCnt[7]; //TRKxPC intersection map
-
- for(Int_t i=0;i<7;i++){
- pDigMap[i]=new TPolyMarker(); pDigMap[i]->SetMarkerStyle(25); pDigMap[i]->SetMarkerSize(0.5); pDigMap[i]->SetMarkerColor(kGreen);
- aTrkCnt[i]=0; pTrkMap[i]=new TPolyMarker(); pTrkMap[i]->SetMarkerStyle(4); pTrkMap[i]->SetMarkerSize(0.5); pTrkMap[i]->SetMarkerColor(kRed);
- }
-
- AliRICHRecon rec;
-
- TLatex t;
- TCanvas *pC = new TCanvas("RICHDisplay","RICH Display",0,0,1226,900); pC->Divide(3,3);
-
- for(Int_t iEvt=0;iEvt<pEsdTr->GetEntries();iEvt++) { //events loop
- pC->cd(3); t.DrawText(0.2,0.4,Form("Event %i",iEvt)); //print current event number
- pEsdTr->GetEntry(iEvt); //get ESD for this event
- for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){//ESD tracks loop
- AliESDtrack *pTrk = pEsd->GetTrack(iTrk); //
- Float_t th,ph,x,y; pTrk->GetRICHtrk(x,y,th,ph); if(x<0) continue;
- Int_t ch=pTrk->GetRICHcluIdx()/1000000; Printf("ch=%i",ch);
- pTrkMap[ch]->SetPoint(aTrkCnt[ch]++,x,y);
- }//ESD tracks loop
-
-// al->GetEvent(iEvt); rl->TreeD()->GetEntry(0); //get digits list
- for(Int_t iCh=0;iCh<7;iCh++) {//chambers loop
-// for(Int_t iDig=0;iDig < r->DigLst(iCh)->GetEntries();iDig++) { //digits loop
-// AliRICHDigit *pDig = (AliRICHDigit*)r->DigLst(iCh)->At(iDig);
-// pDigMap[iCh]->SetPoint(iDig,pDig->LorsX(),pDig->LorsY());
-// } //digits loop
-//
-//
- if(iCh==6) pC->cd(1); if(iCh==5) pC->cd(2);
- if(iCh==4) pC->cd(4); if(iCh==3) pC->cd(5); if(iCh==2) pC->cd(6);
- if(iCh==1) pC->cd(8); if(iCh==0) pC->cd(9);
-
- AliRICHDigit::DrawPc(); pTrkMap[iCh]->Draw(); pDigMap[iCh]->Draw();
- }//chambers loop
-// pC->Update();
-// pC->Modified();
-// if(iEvt<iEvtTo) {gPad->WaitPrimitive();pC->Clear();}
-
-
-
- }//events loop
- delete pEsd; pEsdFl->Close();//close AliESDs.root
-// rl->UnloadDigits();
-}//Display()
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff