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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 | **************************************************************************/ | |
15 | //. | |
16 | // HMPID base class to reconstruct an event | |
17 | //. | |
18 | //. | |
19 | //. | |
20 | #include "AliHMPIDReconstructor.h" //class header | |
21 | #include "AliHMPID.h" //Reconstruct() | |
22 | #include "AliHMPIDCluster.h" //Dig2Clu() | |
23 | #include "AliHMPIDPid.h" //FillEsd() | |
24 | #include "AliHMPIDParam.h" //FillEsd() | |
25 | #include <AliCDBEntry.h> //ctor | |
26 | #include <AliCDBManager.h> //ctor | |
27 | #include <AliESDEvent.h> //FillEsd() | |
28 | #include <AliRawReader.h> //Reconstruct() for raw digits | |
29 | #include <AliLog.h> // | |
30 | #include "AliHMPIDRawStream.h" //ConvertDigits() | |
31 | #include "AliHMPIDRecoParamV1.h" //ctor | |
32 | ||
33 | ClassImp(AliHMPIDReconstructor) | |
34 | ||
35 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
36 | AliHMPIDReconstructor::AliHMPIDReconstructor():AliReconstructor(),fUserCut(0),fDaqSig(0),fDig(0),fClu(0) | |
37 | { | |
38 | // | |
39 | //ctor | |
40 | // | |
41 | AliHMPIDParam::Instance(); //geometry loaded for reconstruction | |
42 | ||
43 | fUserCut = new Int_t[7]; | |
44 | fClu=new TObjArray(AliHMPIDParam::kMaxCh+1); fClu->SetOwner(kTRUE); | |
45 | fDig=new TObjArray(AliHMPIDParam::kMaxCh+1); fDig->SetOwner(kTRUE); | |
46 | ||
47 | for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){ | |
48 | fDig->AddAt(new TClonesArray("AliHMPIDDigit",24000),i); | |
49 | TClonesArray *pClus = new TClonesArray("AliHMPIDCluster",24000); | |
50 | pClus->SetUniqueID(i); | |
51 | fClu->AddAt(pClus,i); | |
52 | } | |
53 | ||
54 | ||
55 | if(AliHMPIDReconstructor::GetRecoParam()) { | |
56 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) { | |
57 | fUserCut[iCh] = AliHMPIDReconstructor::GetRecoParam()->GetHmpUserCut(iCh); | |
58 | AliDebug(1,Form("UserCut successfully loaded (from AliHMPIDRecoParamV1) for chamber %i -> %i ",iCh,fUserCut[iCh])); | |
59 | } | |
60 | } | |
61 | else { | |
62 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) { | |
63 | fUserCut[iCh] = 3; // minimal requirement for sigma cut | |
64 | AliDebug(1,Form("UserCut loaded from defaults for chamber %i -> %i ",iCh,fUserCut[iCh])); | |
65 | AliDebug(1,Form("Cannot get AliHMPIDRecoParamV1!")); | |
66 | } | |
67 | } | |
68 | ||
69 | ||
70 | ||
71 | AliCDBEntry *pDaqSigEnt =AliCDBManager::Instance()->Get("HMPID/Calib/DaqSig"); //contains TObjArray of TObjArray 14 TMatrixF sigmas values for pads | |
72 | if(!pDaqSigEnt) AliFatal("No pedestals from DAQ!"); | |
73 | fDaqSig = (TObjArray*)pDaqSigEnt->GetObject(); | |
74 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop | |
75 | AliDebug(1,Form("DaqSigCut successfully loaded for chamber %i -> %i ",iCh,(Int_t)fDaqSig->At(iCh)->GetUniqueID())); | |
76 | } | |
77 | }//AliHMPIDReconstructor | |
78 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
79 | void AliHMPIDReconstructor::Dig2Clu(TObjArray *pDigAll,TObjArray *pCluAll,Int_t *pUserCut,Bool_t isTryUnfold) | |
80 | { | |
81 | // Finds all clusters for a given digits list provided not empty. Currently digits list is a list of all digits for a single chamber. | |
82 | // Puts all found clusters in separate lists, one per clusters. | |
83 | // Arguments: pDigAll - list of digits for all chambers | |
84 | // pCluAll - list of clusters for all chambers | |
85 | // isTryUnfold - flag to choose between CoG and Mathieson fitting | |
86 | // Returns: none | |
87 | TMatrixF padMap(AliHMPIDParam::kMinPx,AliHMPIDParam::kMaxPcx,AliHMPIDParam::kMinPy,AliHMPIDParam::kMaxPcy); //pads map for single chamber 0..159 x 0..143 | |
88 | ||
89 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop | |
90 | TClonesArray *pDigCur=(TClonesArray*)pDigAll->At(iCh); //get list of digits for current chamber | |
91 | if(pDigCur->GetEntriesFast()==0) continue; //no digits for current chamber | |
92 | ||
93 | padMap=(Float_t)-1; //reset map to -1 (means no digit for this pad) | |
94 | TClonesArray *pCluCur=(TClonesArray*)pCluAll->At(iCh); //get list of clusters for current chamber | |
95 | ||
96 | for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop to fill pads map | |
97 | AliHMPIDDigit *pDig= (AliHMPIDDigit*)pDigCur->At(iDig); //get current digit | |
98 | padMap( pDig->PadChX(), pDig->PadChY() )=iDig; //fill the map, (padx,pady) cell takes digit index | |
99 | }//digits loop to fill digits map | |
100 | ||
101 | AliHMPIDCluster clu; //tmp cluster to be used as current | |
102 | for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop for current chamber | |
103 | AliHMPIDDigit *pDig=(AliHMPIDDigit*)pDigCur->At(iDig); //take current digit | |
104 | if(!(pDig=UseDig(pDig->PadChX(),pDig->PadChY(),pDigCur,&padMap))) continue; //this digit is already taken in FormClu(), go after next digit | |
105 | FormClu(&clu,pDig,pDigCur,&padMap); //form cluster starting from this digit by recursion | |
106 | clu.Solve(pCluCur,pUserCut,isTryUnfold); //solve this cluster and add all unfolded clusters to provided list | |
107 | clu.Reset(); //empty current cluster | |
108 | }//digits loop for current chamber | |
109 | }//chambers loop | |
110 | }//Dig2Clu() | |
111 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
112 | void AliHMPIDReconstructor::FormClu(AliHMPIDCluster *pClu,AliHMPIDDigit *pDig,TClonesArray *pDigLst,TMatrixF *pDigMap) | |
113 | { | |
114 | // Forms the initial cluster as a combination of all adjascent digits. Starts from the given digit then calls itself recursevly for all neighbours. | |
115 | // Arguments: pClu - pointer to cluster being formed | |
116 | // Returns: none | |
117 | pClu->DigAdd(pDig);//take this digit in cluster | |
118 | ||
119 | Int_t cnt=0,cx[4],cy[4]; | |
120 | ||
121 | if(pDig->PadPcX() != AliHMPIDParam::kMinPx){cx[cnt]=pDig->PadChX()-1; cy[cnt]=pDig->PadChY() ;cnt++;} //left | |
122 | if(pDig->PadPcX() != AliHMPIDParam::kMaxPx){cx[cnt]=pDig->PadChX()+1; cy[cnt]=pDig->PadChY() ;cnt++;} //right | |
123 | if(pDig->PadPcY() != AliHMPIDParam::kMinPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()-1;cnt++;} //down | |
124 | if(pDig->PadPcY() != AliHMPIDParam::kMaxPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()+1;cnt++;} //up | |
125 | ||
126 | for (Int_t i=0;i<cnt;i++){//neighbours loop | |
127 | 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 | |
128 | }//neighbours loop | |
129 | }//FormClu() | |
130 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
131 | void AliHMPIDReconstructor::Reconstruct(TTree *pDigTree,TTree *pCluTree)const | |
132 | { | |
133 | //Invoked by AliReconstruction to convert digits to clusters i.e. reconstruct simulated data | |
134 | //Arguments: pDigTree - pointer to Digit tree | |
135 | // pCluTree - poitner to Cluster tree | |
136 | // Returns: none | |
137 | AliDebug(1,"Start."); | |
138 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) { | |
139 | pCluTree->Branch(Form("HMPID%d",iCh),&((*fClu)[iCh]),7); | |
140 | pDigTree->SetBranchAddress(Form("HMPID%d",iCh),&((*fDig)[iCh])); | |
141 | } | |
142 | pDigTree->GetEntry(0); | |
143 | Dig2Clu(fDig,fClu,fUserCut); //cluster finder | |
144 | pCluTree->Fill(); //fill tree for current event | |
145 | ||
146 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ | |
147 | fDig->At(iCh)->Clear(); | |
148 | fClu->At(iCh)->Clear(); | |
149 | } | |
150 | ||
151 | AliDebug(1,"Stop."); | |
152 | }//Reconstruct(for simulated digits) | |
153 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
154 | void AliHMPIDReconstructor::ConvertDigits(AliRawReader *pRR,TTree *pDigTree)const | |
155 | { | |
156 | //Invoked by AliReconstruction to convert raw digits from DDL files to digits | |
157 | //Arguments: pRR - ALICE raw reader pointer | |
158 | // pDigTree - pointer to Digit tree | |
159 | // Returns: none | |
160 | AliDebug(1,"Start."); | |
161 | // Int_t digcnt=0; | |
162 | ||
163 | Int_t iDigCnt[7]={0,0,0,0,0,0,0}; | |
164 | ||
165 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ | |
166 | pDigTree->Branch(Form("HMPID%d",iCh),&((*fDig)[iCh])); | |
167 | } | |
168 | ||
169 | AliHMPIDRawStream stream(pRR); | |
170 | ||
171 | while(stream.Next()) | |
172 | { | |
173 | Int_t ch = AliHMPIDParam::DDL2C(stream.GetDDLNumber()); | |
174 | for(Int_t iPad=0;iPad<stream.GetNPads();iPad++) { | |
175 | AliHMPIDDigit dig(stream.GetPadArray()[iPad],stream.GetChargeArray()[iPad]); | |
176 | if(!IsDigSurvive(&dig)) continue; | |
177 | new((*((TClonesArray*)fDig->At(ch)))[iDigCnt[ch]++]) AliHMPIDDigit(dig); //add this digit to the tmp list | |
178 | } | |
179 | } | |
180 | ||
181 | pDigTree->Fill(); | |
182 | ||
183 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++)fDig->At(iCh)->Clear(); | |
184 | ||
185 | AliDebug(1,"Stop."); | |
186 | }//Reconstruct digits from raw digits | |
187 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
188 | void AliHMPIDReconstructor::FillESD(TTree */*digitsTree*/, TTree */*clustersTree*/, AliESDEvent *pESD) const | |
189 | { | |
190 | // Fill ESD with all the infos from HMPID | |
191 | // Probability vector from AliHMPIDPid | |
192 | //... | |
193 | AliHMPIDPid pID; | |
194 | Double_t prob[AliPID::kSPECIES]; | |
195 | ||
196 | for(Int_t iTrk=0;iTrk<pESD->GetNumberOfTracks();iTrk++){//ESD tracks loop | |
197 | AliESDtrack *pTrk = pESD->GetTrack(iTrk);// get next reconstructed track | |
198 | pID.FindPid(pTrk,AliPID::kSPECIES,prob); | |
199 | pTrk->SetHMPIDpid(prob); | |
200 | }//ESD tracks loop | |
201 | }//FillESD() |