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[u/mrichter/AliRoot.git] / HMPID / AliHMPIDReconstructor.cxx
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d3da6dc4 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
423554a3 15//.
16// HMPID base class to reconstruct an event
17//.
18//.
19//.
d3da6dc4 20#include "AliHMPIDReconstructor.h" //class header
21#include "AliHMPID.h" //Reconstruct()
a1d55ff3 22#include "AliHMPIDCluster.h" //Dig2Clu()
9ebbddd4 23#include "AliHMPIDPid.h" //FillEsd()
24#include "AliHMPIDParam.h" //FillEsd()
a0e5c1b9 25#include <AliCDBEntry.h> //ctor
26#include <AliCDBManager.h> //ctor
555a0dbf 27#include <AliESDEvent.h> //FillEsd()
a0e5c1b9 28#include <AliRawReader.h> //Reconstruct() for raw digits
65201c45 29#include <AliLog.h> //
d76c31f4 30#include "AliHMPIDRawStream.h" //ConvertDigits()
c458aab6 31#include "AliHMPIDRecoParamV1.h" //ctor
451299f3 32
d3da6dc4 33ClassImp(AliHMPIDReconstructor)
34
aed5907d 35Int_t AliHMPIDReconstructor::fgStreamLevel = 0; // stream (debug) level
36
d3da6dc4 37//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ab1d3801 38AliHMPIDReconstructor::AliHMPIDReconstructor():AliReconstructor(),fDaqSig(0),fDig(0),fClu(0)
94b1fbfa 39{
40//
41//ctor
42//
909bfbdc 43 AliHMPIDParam::Instance(); //geometry loaded for reconstruction
451299f3 44
ae5a42aa 45 fClu=new TObjArray(AliHMPIDParam::kMaxCh+1); fClu->SetOwner(kTRUE);
46 fDig=new TObjArray(AliHMPIDParam::kMaxCh+1); fDig->SetOwner(kTRUE);
9cc1a411 47
ae5a42aa 48 for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){
56c73976 49 fDig->AddAt(new TClonesArray("AliHMPIDDigit",24000),i);
50 TClonesArray *pClus = new TClonesArray("AliHMPIDCluster",24000);
611e810d 51 pClus->SetUniqueID(i);
52 fClu->AddAt(pClus,i);
94b1fbfa 53 }
451299f3 54
9cc1a411 55 AliCDBEntry *pDaqSigEnt =AliCDBManager::Instance()->Get("HMPID/Calib/DaqSig"); //contains TObjArray of TObjArray 14 TMatrixF sigmas values for pads
56 if(!pDaqSigEnt) AliFatal("No pedestals from DAQ!");
57 fDaqSig = (TObjArray*)pDaqSigEnt->GetObject();
58 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop
4f9a834e 59 AliDebug(1,Form("DaqSigCut successfully loaded for chamber %i -> %i ",iCh,(Int_t)fDaqSig->At(iCh)->GetUniqueID()));
a0e5c1b9 60 }
94b1fbfa 61}//AliHMPIDReconstructor
62//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
54104a7c 63void AliHMPIDReconstructor::Dig2Clu(TObjArray *pDigAll,TObjArray *pCluAll,Int_t *pUserCut,Bool_t isTryUnfold)
d3da6dc4 64{
65// Finds all clusters for a given digits list provided not empty. Currently digits list is a list of all digits for a single chamber.
66// Puts all found clusters in separate lists, one per clusters.
3c6274c1 67// Arguments: pDigAll - list of digits for all chambers
68// pCluAll - list of clusters for all chambers
d3da6dc4 69// isTryUnfold - flag to choose between CoG and Mathieson fitting
70// Returns: none
ae5a42aa 71 TMatrixF padMap(AliHMPIDParam::kMinPx,AliHMPIDParam::kMaxPcx,AliHMPIDParam::kMinPy,AliHMPIDParam::kMaxPcy); //pads map for single chamber 0..159 x 0..143
3c6274c1 72
ae5a42aa 73 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop
3c6274c1 74 TClonesArray *pDigCur=(TClonesArray*)pDigAll->At(iCh); //get list of digits for current chamber
75 if(pDigCur->GetEntriesFast()==0) continue; //no digits for current chamber
d3da6dc4 76
3c6274c1 77 padMap=(Float_t)-1; //reset map to -1 (means no digit for this pad)
78 TClonesArray *pCluCur=(TClonesArray*)pCluAll->At(iCh); //get list of clusters for current chamber
79
80 for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop to fill pads map
81 AliHMPIDDigit *pDig= (AliHMPIDDigit*)pDigCur->At(iDig); //get current digit
82 padMap( pDig->PadChX(), pDig->PadChY() )=iDig; //fill the map, (padx,pady) cell takes digit index
83 }//digits loop to fill digits map
84
85 AliHMPIDCluster clu; //tmp cluster to be used as current
3c6274c1 86 for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop for current chamber
87 AliHMPIDDigit *pDig=(AliHMPIDDigit*)pDigCur->At(iDig); //take current digit
88 if(!(pDig=UseDig(pDig->PadChX(),pDig->PadChY(),pDigCur,&padMap))) continue; //this digit is already taken in FormClu(), go after next digit
89 FormClu(&clu,pDig,pDigCur,&padMap); //form cluster starting from this digit by recursion
54104a7c 90 clu.Solve(pCluCur,pUserCut,isTryUnfold); //solve this cluster and add all unfolded clusters to provided list
3c6274c1 91 clu.Reset(); //empty current cluster
92 }//digits loop for current chamber
93 }//chambers loop
d3da6dc4 94}//Dig2Clu()
95//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
96void AliHMPIDReconstructor::FormClu(AliHMPIDCluster *pClu,AliHMPIDDigit *pDig,TClonesArray *pDigLst,TMatrixF *pDigMap)
97{
a1d55ff3 98// Forms the initial cluster as a combination of all adjascent digits. Starts from the given digit then calls itself recursevly for all neighbours.
d3da6dc4 99// Arguments: pClu - pointer to cluster being formed
a1d55ff3 100// Returns: none
d3da6dc4 101 pClu->DigAdd(pDig);//take this digit in cluster
102
3c6274c1 103 Int_t cnt=0,cx[4],cy[4];
d3da6dc4 104
ae5a42aa 105 if(pDig->PadPcX() != AliHMPIDParam::kMinPx){cx[cnt]=pDig->PadChX()-1; cy[cnt]=pDig->PadChY() ;cnt++;} //left
106 if(pDig->PadPcX() != AliHMPIDParam::kMaxPx){cx[cnt]=pDig->PadChX()+1; cy[cnt]=pDig->PadChY() ;cnt++;} //right
107 if(pDig->PadPcY() != AliHMPIDParam::kMinPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()-1;cnt++;} //down
108 if(pDig->PadPcY() != AliHMPIDParam::kMaxPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()+1;cnt++;} //up
d3da6dc4 109
a1d55ff3 110 for (Int_t i=0;i<cnt;i++){//neighbours loop
3c6274c1 111 if((pDig=UseDig(cx[i],cy[i],pDigLst,pDigMap))) FormClu(pClu,pDig,pDigLst,pDigMap); //check if this neighbour pad fired and mark it as taken
a1d55ff3 112 }//neighbours loop
d3da6dc4 113}//FormClu()
114//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
94b1fbfa 115void AliHMPIDReconstructor::Reconstruct(TTree *pDigTree,TTree *pCluTree)const
d3da6dc4 116{
117//Invoked by AliReconstruction to convert digits to clusters i.e. reconstruct simulated data
94b1fbfa 118//Arguments: pDigTree - pointer to Digit tree
119// pCluTree - poitner to Cluster tree
d3da6dc4 120// Returns: none
121 AliDebug(1,"Start.");
ae5a42aa 122 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
56c73976 123 pCluTree->Branch(Form("HMPID%d",iCh),&((*fClu)[iCh]),7);
94b1fbfa 124 pDigTree->SetBranchAddress(Form("HMPID%d",iCh),&((*fDig)[iCh]));
125 }
ab1d3801 126
07cd858e 127 Int_t pUserCut[7];
ab1d3801 128
129 if(AliHMPIDReconstructor::GetRecoParam()) {
130 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
131 pUserCut[iCh] = AliHMPIDReconstructor::GetRecoParam()->GetHmpUserCut(iCh);
132 AliDebug(1,Form("UserCut successfully loaded (from AliHMPIDRecoParamV1) for chamber %i -> %i ",iCh,pUserCut[iCh]));
133 }
134 }
135 else {
136 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
137 pUserCut[iCh] = 4; // minimal requirement for sigma cut
138 AliDebug(1,Form("UserCut loaded from defaults for chamber %i -> %i ",iCh,pUserCut[iCh]));
139 AliDebug(1,Form("Cannot get AliHMPIDRecoParamV1!"));
140 }
141 }
142
94b1fbfa 143 pDigTree->GetEntry(0);
ab1d3801 144 Dig2Clu(fDig,fClu,pUserCut); //cluster finder
94b1fbfa 145 pCluTree->Fill(); //fill tree for current event
146
ae5a42aa 147 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
94b1fbfa 148 fDig->At(iCh)->Clear();
149 fClu->At(iCh)->Clear();
150 }
d3da6dc4 151
70c97c60 152
d3da6dc4 153 AliDebug(1,"Stop.");
154}//Reconstruct(for simulated digits)
a1d55ff3 155//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
94b1fbfa 156void AliHMPIDReconstructor::ConvertDigits(AliRawReader *pRR,TTree *pDigTree)const
157{
158//Invoked by AliReconstruction to convert raw digits from DDL files to digits
159//Arguments: pRR - ALICE raw reader pointer
160// pDigTree - pointer to Digit tree
161// Returns: none
162 AliDebug(1,"Start.");
21f61e25 163// Int_t digcnt=0;
164
56c73976 165 Int_t iDigCnt[7]={0,0,0,0,0,0,0};
21f61e25 166
56c73976 167 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
168 pDigTree->Branch(Form("HMPID%d",iCh),&((*fDig)[iCh]));
169 }
21f61e25 170
07cd858e 171 Int_t pUserCut[7];
ab1d3801 172
173 if(AliHMPIDReconstructor::GetRecoParam()) {
174 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
175 pUserCut[iCh] = AliHMPIDReconstructor::GetRecoParam()->GetHmpUserCut(iCh);
176 AliDebug(1,Form("UserCut successfully loaded (from AliHMPIDRecoParamV1) for chamber %i -> %i ",iCh,pUserCut[iCh]));
177 }
178 }
179 else {
180 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
181 pUserCut[iCh] = 4; // minimal requirement for sigma cut
182 AliDebug(1,Form("UserCut loaded from defaults for chamber %i -> %i ",iCh,pUserCut[iCh]));
183 AliDebug(1,Form("Cannot get AliHMPIDRecoParamV1!"));
184 }
185 }
186
56c73976 187 AliHMPIDRawStream stream(pRR);
188
189 while(stream.Next())
190 {
191 Int_t ch = AliHMPIDParam::DDL2C(stream.GetDDLNumber());
192 for(Int_t iPad=0;iPad<stream.GetNPads();iPad++) {
193 AliHMPIDDigit dig(stream.GetPadArray()[iPad],stream.GetChargeArray()[iPad]);
ab1d3801 194 if(!IsDigSurvive(pUserCut,&dig)) continue;
56c73976 195 new((*((TClonesArray*)fDig->At(ch)))[iDigCnt[ch]++]) AliHMPIDDigit(dig); //add this digit to the tmp list
21f61e25 196 }
21f61e25 197 }
56c73976 198
94b1fbfa 199 pDigTree->Fill();
21f61e25 200
ae5a42aa 201 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++)fDig->At(iCh)->Clear();
21f61e25 202
70c97c60 203
94b1fbfa 204 AliDebug(1,"Stop.");
205}//Reconstruct digits from raw digits
206//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
d76c31f4 207void AliHMPIDReconstructor::FillESD(TTree */*digitsTree*/, TTree */*clustersTree*/, AliESDEvent *pESD) const
d3da6dc4 208{
3278403b 209// Fill ESD with all the infos from HMPID
210// Probability vector from AliHMPIDPid
211//...
9eb30f08 212 AliHMPIDPid pID;
dac53a45 213 Double_t prob[AliPID::kSPECIES];
9eb30f08 214
215 for(Int_t iTrk=0;iTrk<pESD->GetNumberOfTracks();iTrk++){//ESD tracks loop
216 AliESDtrack *pTrk = pESD->GetTrack(iTrk);// get next reconstructed track
dac53a45 217 pID.FindPid(pTrk,AliPID::kSPECIES,prob);
218 pTrk->SetHMPIDpid(prob);
9eb30f08 219 }//ESD tracks loop
a1d55ff3 220}//FillESD()