Line data Source code
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 : #include <TVirtualFitter.h>
33 12 : ClassImp(AliHMPIDReconstructor)
34 :
35 : Int_t AliHMPIDReconstructor::fgStreamLevel = 0; // stream (debug) level
36 :
37 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
38 4 : AliHMPIDReconstructor::AliHMPIDReconstructor():AliReconstructor(),fDaqSig(0),fDig(0),fClu(0)
39 10 : {
40 : //
41 : //ctor
42 : //
43 2 : AliHMPIDParam::Instance(); //geometry loaded for reconstruction
44 :
45 6 : fClu=new TObjArray(AliHMPIDParam::kMaxCh+1); fClu->SetOwner(kTRUE);
46 6 : fDig=new TObjArray(AliHMPIDParam::kMaxCh+1); fDig->SetOwner(kTRUE);
47 :
48 32 : for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){
49 42 : fDig->AddAt(new TClonesArray("AliHMPIDDigit",24000),i);
50 28 : TClonesArray *pClus = new TClonesArray("AliHMPIDCluster",24000);
51 14 : pClus->SetUniqueID(i);
52 14 : fClu->AddAt(pClus,i);
53 : }
54 :
55 8 : AliCDBEntry *pDaqSigEnt =AliCDBManager::Instance()->Get("HMPID/Calib/DaqSig"); //contains TObjArray of TObjArray 14 TMatrixF sigmas values for pads
56 4 : if(pDaqSigEnt) fDaqSig = (TObjArray*)pDaqSigEnt->GetObject();
57 0 : else AliFatal("No pedestals from DAQ!");
58 32 : for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop
59 70 : AliDebug(1,Form("DaqSigCut successfully loaded for chamber %i -> %i ",iCh,(Int_t)fDaqSig->At(iCh)->GetUniqueID()));
60 : }
61 4 : }//AliHMPIDReconstructor
62 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
63 : void AliHMPIDReconstructor::Dig2Clu(TObjArray *pDigAll,TObjArray *pCluAll,Int_t *pUserCut,Bool_t isTryUnfold)
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.
67 : // Arguments: pDigAll - list of digits for all chambers
68 : // pCluAll - list of clusters for all chambers
69 : // isTryUnfold - flag to choose between CoG and Mathieson fitting
70 : // Returns: none
71 :
72 8 : TMatrixF padMap(AliHMPIDParam::kMinPx,AliHMPIDParam::kMaxPcx,AliHMPIDParam::kMinPy,AliHMPIDParam::kMaxPcy); //pads map for single chamber 0..159 x 0..143
73 :
74 128 : for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop
75 112 : TClonesArray *pDigCur=(TClonesArray*)pDigAll->At(iCh); //get list of digits for current chamber
76 126 : if(pDigCur->GetEntriesFast()==0) continue; //no digits for current chamber
77 :
78 42 : padMap=(Float_t)-1; //reset map to -1 (means no digit for this pad)
79 84 : TClonesArray *pCluCur=(TClonesArray*)pCluAll->At(iCh); //get list of clusters for current chamber
80 :
81 2862 : for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop to fill pads map
82 1824 : AliHMPIDDigit *pDig= (AliHMPIDDigit*)pDigCur->At(iDig); //get current digit
83 3648 : padMap( pDig->PadChX(), pDig->PadChY() )=iDig; //fill the map, (padx,pady) cell takes digit index
84 : }//digits loop to fill digits map
85 :
86 42 : AliHMPIDCluster clu; //tmp cluster to be used as current
87 2862 : for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop for current chamber
88 1824 : AliHMPIDDigit *pDig=(AliHMPIDDigit*)pDigCur->At(iDig); //take current digit
89 4136 : if(!(pDig=UseDig(pDig->PadChX(),pDig->PadChY(),pDigCur,&padMap))) continue; //this digit is already taken in FormClu(), go after next digit
90 424 : FormClu(&clu,pDig,pDigCur,&padMap); //form cluster starting from this digit by recursion
91 424 : clu.Solve(pCluCur,pUserCut,isTryUnfold); //solve this cluster and add all unfolded clusters to provided list
92 424 : clu.Reset(); //empty current cluster
93 424 : }//digits loop for current chamber
94 42 : }//chambers loop
95 8 : }//Dig2Clu()
96 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
97 : void AliHMPIDReconstructor::FormClu(AliHMPIDCluster *pClu,AliHMPIDDigit *pDig,TClonesArray *pDigLst,TMatrixF *pDigMap)
98 : {
99 : // Forms the initial cluster as a combination of all adjascent digits. Starts from the given digit then calls itself recursevly for all neighbours.
100 : // Arguments: pClu - pointer to cluster being formed
101 : // Returns: none
102 1824 : pClu->DigAdd(pDig);//take this digit in cluster
103 :
104 912 : Int_t cnt=0,cx[4],cy[4];
105 :
106 1823 : if(pDig->PadPcX() != AliHMPIDParam::kMinPx){cx[cnt]=pDig->PadChX()-1; cy[cnt]=pDig->PadChY() ;cnt++;} //left
107 1822 : if(pDig->PadPcX() != AliHMPIDParam::kMaxPx){cx[cnt]=pDig->PadChX()+1; cy[cnt]=pDig->PadChY() ;cnt++;} //right
108 1815 : if(pDig->PadPcY() != AliHMPIDParam::kMinPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()-1;cnt++;} //down
109 1799 : if(pDig->PadPcY() != AliHMPIDParam::kMaxPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()+1;cnt++;} //up
110 :
111 9046 : for (Int_t i=0;i<cnt;i++){//neighbours loop
112 4099 : 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
113 : }//neighbours loop
114 912 : }//FormClu()
115 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
116 : void AliHMPIDReconstructor::Reconstruct(TTree *pDigTree,TTree *pCluTree)const
117 : {
118 : //Invoked by AliReconstruction to convert digits to clusters i.e. reconstruct simulated data
119 : //Arguments: pDigTree - pointer to Digit tree
120 : // pCluTree - poitner to Cluster tree
121 : // Returns: none
122 32 : AliDebug(1,"Start.");
123 128 : for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
124 56 : pCluTree->Branch(Form("HMPID%d",iCh),&((*fClu)[iCh]),7);
125 56 : pDigTree->SetBranchAddress(Form("HMPID%d",iCh),&((*fDig)[iCh]));
126 : }
127 :
128 8 : Int_t pUserCut[7];
129 :
130 8 : if(AliHMPIDReconstructor::GetRecoParam()) {
131 128 : for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
132 56 : pUserCut[iCh] = AliHMPIDReconstructor::GetRecoParam()->GetHmpUserCut(iCh);
133 168 : AliDebug(1,Form("UserCut successfully loaded (from AliHMPIDRecoParamV1) for chamber %i -> %i ",iCh,pUserCut[iCh]));
134 : }
135 8 : }
136 : else {
137 0 : for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
138 0 : pUserCut[iCh] = 4; // minimal requirement for sigma cut
139 0 : AliDebug(1,Form("UserCut loaded from defaults for chamber %i -> %i ",iCh,pUserCut[iCh]));
140 0 : AliDebug(1,Form("Cannot get AliHMPIDRecoParamV1!"));
141 : }
142 : }
143 8 : TVirtualFitter* fitter = TVirtualFitter::GetFitter();
144 11 : delete fitter;
145 8 : fitter = TVirtualFitter::Fitter(0,3*6); // create a new fitter to avoid interferrence with others
146 8 : pDigTree->GetEntry(0);
147 8 : Dig2Clu(fDig,fClu,pUserCut); //cluster finder
148 8 : pCluTree->Fill(); //fill tree for current event
149 16 : delete fitter;
150 128 : for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
151 56 : fDig->At(iCh)->Clear();
152 56 : fClu->At(iCh)->Clear();
153 : }
154 :
155 :
156 24 : AliDebug(1,"Stop.");
157 8 : }//Reconstruct(for simulated digits)
158 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
159 : void AliHMPIDReconstructor::ConvertDigits(AliRawReader *pRR,TTree *pDigTree)const
160 : {
161 : //Invoked by AliReconstruction to convert raw digits from DDL files to digits
162 : //Arguments: pRR - ALICE raw reader pointer
163 : // pDigTree - pointer to Digit tree
164 : // Returns: none
165 16 : AliDebug(1,"Start.");
166 : // Int_t digcnt=0;
167 :
168 4 : Int_t iDigCnt[7]={0,0,0,0,0,0,0};
169 :
170 64 : for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
171 28 : pDigTree->Branch(Form("HMPID%d",iCh),&((*fDig)[iCh]));
172 : }
173 :
174 4 : Int_t pUserCut[7];
175 :
176 4 : if(AliHMPIDReconstructor::GetRecoParam()) {
177 64 : for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
178 28 : pUserCut[iCh] = AliHMPIDReconstructor::GetRecoParam()->GetHmpUserCut(iCh);
179 84 : AliDebug(1,Form("UserCut successfully loaded (from AliHMPIDRecoParamV1) for chamber %i -> %i ",iCh,pUserCut[iCh]));
180 : }
181 4 : }
182 : else {
183 0 : for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
184 0 : pUserCut[iCh] = 4; // minimal requirement for sigma cut
185 0 : AliDebug(1,Form("UserCut loaded from defaults for chamber %i -> %i ",iCh,pUserCut[iCh]));
186 0 : AliDebug(1,Form("Cannot get AliHMPIDRecoParamV1!"));
187 : }
188 : }
189 :
190 4 : AliHMPIDRawStream stream(pRR);
191 :
192 180 : while(stream.Next())
193 : {
194 56 : Int_t ch = AliHMPIDParam::DDL2C(stream.GetDDLNumber());
195 1174 : for(Int_t iPad=0;iPad<stream.GetNPads();iPad++) {
196 531 : AliHMPIDDigit dig(stream.GetPadArray()[iPad],stream.GetChargeArray()[iPad]);
197 1212 : if(!IsDigSurvive(pUserCut,&dig)) continue;
198 1524 : new((*((TClonesArray*)fDig->At(ch)))[iDigCnt[ch]++]) AliHMPIDDigit(dig); //add this digit to the tmp list
199 912 : }
200 : }
201 :
202 4 : pDigTree->Fill();
203 :
204 120 : for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++)fDig->At(iCh)->Clear();
205 :
206 :
207 20 : AliDebug(1,"Stop.");
208 4 : }//Reconstruct digits from raw digits
209 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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