]>
Commit | Line | Data |
---|---|---|
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() |
d3da6dc4 | 23 | #include "AliHMPIDParam.h" //FillEsd() |
a0e5c1b9 | 24 | #include <AliCDBEntry.h> //ctor |
25 | #include <AliCDBManager.h> //ctor | |
26 | #include <AliESD.h> //FillEsd() | |
27 | #include <AliRawReader.h> //Reconstruct() for raw digits | |
d3da6dc4 | 28 | ClassImp(AliHMPIDReconstructor) |
29 | ||
94b1fbfa | 30 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
a0e5c1b9 | 31 | AliHMPIDReconstructor::AliHMPIDReconstructor():AliReconstructor(),fUserCut(0),fDaqSig(0),fDig(0),fClu(0) |
94b1fbfa | 32 | { |
33 | // | |
34 | //ctor | |
35 | // | |
a0e5c1b9 | 36 | |
37 | fClu=new TObjArray(AliHMPIDDigit::kMaxCh+1); fClu->SetOwner(kTRUE); | |
38 | fDig=new TObjArray(AliHMPIDDigit::kMaxCh+1); fDig->SetOwner(kTRUE); | |
39 | ||
94b1fbfa | 40 | for(int i=AliHMPIDDigit::kMinCh;i<=AliHMPIDDigit::kMaxCh;i++){ |
41 | fDig->AddAt(new TClonesArray("AliHMPIDDigit"),i); | |
42 | fClu->AddAt(new TClonesArray("AliHMPIDCluster"),i); | |
43 | } | |
a0e5c1b9 | 44 | |
45 | AliCDBManager::Instance()->SetDefaultStorage("local://$HOME"); | |
46 | ||
47 | AliCDBEntry *pUserCutEnt =AliCDBManager::Instance()->Get("HMPID/Calib/UserCut"); //contains TObjArray of 14 TObject with n. of sigmas to cut charge | |
48 | if(!pUserCutEnt) return; //No request from User to apply a more severe cut on pad charge | |
49 | ||
50 | fUserCut = pUserCutEnt->GetObject()->GetUniqueID(); | |
51 | ||
52 | Printf(" usercut %i ",fUserCut); | |
53 | ||
54 | AliCDBEntry *pDaqCutEnt =AliCDBManager::Instance()->Get("HMPID/Calib/DaqSigCut"); //contains TObjArray of 14 TObject with n. of sigmas to cut charge | |
55 | if(!pDaqCutEnt) AliFatal("No pedestal sigmas cut!"); | |
56 | TObjArray *pDaqCut = (TObjArray*)pDaqCutEnt->GetObject(); | |
57 | ||
58 | ||
59 | for(Int_t ddl=0;ddl<14;ddl++){ | |
60 | if(fUserCut<=(Int_t)pDaqCut->At(ddl)->GetUniqueID()) continue; | |
61 | AliCDBEntry *pDaqSigEnt =AliCDBManager::Instance()->Get("HMPID/Calib/DaqSig"); //contains TObjArray of TObjArray 14 TMatrixF sigmas values for pads | |
62 | if(!pDaqSigEnt) AliFatal("No pedestals from DAQ!"); | |
63 | TObjArray *pDaqSig = (TObjArray*)pDaqSigEnt->GetObject(); | |
64 | SigConv(pDaqSig); | |
65 | break; | |
66 | } | |
94b1fbfa | 67 | }//AliHMPIDReconstructor |
d3da6dc4 | 68 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
a0e5c1b9 | 69 | void AliHMPIDReconstructor::SigConv(TObjArray *pDaqSig) |
70 | { | |
71 | // Conversion from the pedestal objects in to 7 TMatrixF(padX,padY) | |
72 | //Arguments: pDaqSig pointer to the pedestal objects from OCDB | |
73 | // Returs: none | |
74 | // | |
75 | fDaqSig = new TObjArray(AliHMPIDDigit::kMaxCh+1);fDaqSig->SetOwner(kTRUE); | |
76 | ||
77 | for(Int_t iCh=AliHMPIDDigit::kMinCh;iCh<=AliHMPIDDigit::kMaxCh;iCh++) fDaqSig->AddAt(new TMatrixF(1,10,0,47),iCh); | |
78 | ||
79 | AliHMPIDDigit dig; | |
80 | ||
81 | for(Int_t ddl=0;ddl<=13;ddl++){ | |
82 | for(Int_t row=1;row<=24;row++) | |
83 | for(Int_t dil=1;dil<=10;dil++) | |
84 | for(Int_t adr=0;adr<=47;adr++){ | |
85 | TObjArray *pDdl = (TObjArray*)pDaqSig->At(ddl); | |
86 | TObjArray *pRow = (TObjArray*)pDdl->At(row-1); | |
87 | TMatrixF *pM = (TMatrixF*)pRow; | |
88 | Float_t sigma = (*pM)(dil,adr); | |
89 | dig.Raw(ddl,row,dil,adr); | |
90 | TMatrixF* pMConv = (TMatrixF*)(fDaqSig->At(dig.Ch())); | |
91 | (*pMConv)(dig.PadChX(),dig.PadChY()) = sigma; | |
92 | } | |
93 | } | |
94 | }//SigConv() | |
95 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
3c6274c1 | 96 | void AliHMPIDReconstructor::Dig2Clu(TObjArray *pDigAll,TObjArray *pCluAll,Bool_t isTryUnfold) |
d3da6dc4 | 97 | { |
98 | // Finds all clusters for a given digits list provided not empty. Currently digits list is a list of all digits for a single chamber. | |
99 | // Puts all found clusters in separate lists, one per clusters. | |
3c6274c1 | 100 | // Arguments: pDigAll - list of digits for all chambers |
101 | // pCluAll - list of clusters for all chambers | |
d3da6dc4 | 102 | // isTryUnfold - flag to choose between CoG and Mathieson fitting |
103 | // Returns: none | |
a1d55ff3 | 104 | TMatrixF padMap(AliHMPIDDigit::kMinPx,AliHMPIDDigit::kMaxPcx,AliHMPIDDigit::kMinPy,AliHMPIDDigit::kMaxPcy); //pads map for single chamber 0..159 x 0..143 |
3c6274c1 | 105 | |
a1d55ff3 | 106 | for(Int_t iCh=AliHMPIDDigit::kMinCh;iCh<=AliHMPIDDigit::kMaxCh;iCh++){ //chambers loop |
3c6274c1 | 107 | TClonesArray *pDigCur=(TClonesArray*)pDigAll->At(iCh); //get list of digits for current chamber |
108 | if(pDigCur->GetEntriesFast()==0) continue; //no digits for current chamber | |
d3da6dc4 | 109 | |
3c6274c1 | 110 | padMap=(Float_t)-1; //reset map to -1 (means no digit for this pad) |
111 | TClonesArray *pCluCur=(TClonesArray*)pCluAll->At(iCh); //get list of clusters for current chamber | |
112 | ||
113 | for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop to fill pads map | |
114 | AliHMPIDDigit *pDig= (AliHMPIDDigit*)pDigCur->At(iDig); //get current digit | |
115 | padMap( pDig->PadChX(), pDig->PadChY() )=iDig; //fill the map, (padx,pady) cell takes digit index | |
116 | }//digits loop to fill digits map | |
117 | ||
118 | AliHMPIDCluster clu; //tmp cluster to be used as current | |
3c6274c1 | 119 | for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop for current chamber |
120 | AliHMPIDDigit *pDig=(AliHMPIDDigit*)pDigCur->At(iDig); //take current digit | |
121 | if(!(pDig=UseDig(pDig->PadChX(),pDig->PadChY(),pDigCur,&padMap))) continue; //this digit is already taken in FormClu(), go after next digit | |
122 | FormClu(&clu,pDig,pDigCur,&padMap); //form cluster starting from this digit by recursion | |
123 | ||
124 | clu.Solve(pCluCur,isTryUnfold); //solve this cluster and add all unfolded clusters to provided list | |
125 | clu.Reset(); //empty current cluster | |
126 | }//digits loop for current chamber | |
127 | }//chambers loop | |
d3da6dc4 | 128 | }//Dig2Clu() |
129 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
130 | void AliHMPIDReconstructor::FormClu(AliHMPIDCluster *pClu,AliHMPIDDigit *pDig,TClonesArray *pDigLst,TMatrixF *pDigMap) | |
131 | { | |
a1d55ff3 | 132 | // Forms the initial cluster as a combination of all adjascent digits. Starts from the given digit then calls itself recursevly for all neighbours. |
d3da6dc4 | 133 | // Arguments: pClu - pointer to cluster being formed |
a1d55ff3 | 134 | // Returns: none |
d3da6dc4 | 135 | pClu->DigAdd(pDig);//take this digit in cluster |
136 | ||
3c6274c1 | 137 | Int_t cnt=0,cx[4],cy[4]; |
d3da6dc4 | 138 | |
a1d55ff3 | 139 | if(pDig->PadPcX() != AliHMPIDDigit::kMinPx){cx[cnt]=pDig->PadChX()-1; cy[cnt]=pDig->PadChY() ;cnt++;} //left |
140 | if(pDig->PadPcX() != AliHMPIDDigit::kMaxPx){cx[cnt]=pDig->PadChX()+1; cy[cnt]=pDig->PadChY() ;cnt++;} //right | |
141 | if(pDig->PadPcY() != AliHMPIDDigit::kMinPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()-1;cnt++;} //down | |
142 | if(pDig->PadPcY() != AliHMPIDDigit::kMaxPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()+1;cnt++;} //up | |
d3da6dc4 | 143 | |
a1d55ff3 | 144 | for (Int_t i=0;i<cnt;i++){//neighbours loop |
3c6274c1 | 145 | 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 | 146 | }//neighbours loop |
d3da6dc4 | 147 | }//FormClu() |
148 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
94b1fbfa | 149 | void AliHMPIDReconstructor::Reconstruct(TTree *pDigTree,TTree *pCluTree)const |
d3da6dc4 | 150 | { |
151 | //Invoked by AliReconstruction to convert digits to clusters i.e. reconstruct simulated data | |
94b1fbfa | 152 | //Arguments: pDigTree - pointer to Digit tree |
153 | // pCluTree - poitner to Cluster tree | |
d3da6dc4 | 154 | // Returns: none |
155 | AliDebug(1,"Start."); | |
94b1fbfa | 156 | for(Int_t iCh=AliHMPIDDigit::kMinCh;iCh<=AliHMPIDDigit::kMaxCh;iCh++) { |
157 | pCluTree->Branch(Form("HMPID%d",iCh),&((*fClu)[iCh]),4000,0); | |
158 | pDigTree->SetBranchAddress(Form("HMPID%d",iCh),&((*fDig)[iCh])); | |
159 | } | |
160 | pDigTree->GetEntry(0); | |
161 | Dig2Clu(fDig,fClu); //cluster finder | |
162 | pCluTree->Fill(); //fill tree for current event | |
163 | ||
164 | for(Int_t iCh=AliHMPIDDigit::kMinCh;iCh<=AliHMPIDDigit::kMaxCh;iCh++){ | |
165 | fDig->At(iCh)->Clear(); | |
166 | fClu->At(iCh)->Clear(); | |
167 | } | |
d3da6dc4 | 168 | |
d3da6dc4 | 169 | AliDebug(1,"Stop."); |
170 | }//Reconstruct(for simulated digits) | |
a1d55ff3 | 171 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
d3da6dc4 | 172 | void AliHMPIDReconstructor::Reconstruct(AliRunLoader *pAL,AliRawReader* pRR)const |
173 | { | |
174 | //Invoked by AliReconstruction to convert raw digits from DDL files to clusters | |
175 | //Arguments: pAL - ALICE run loader pointer | |
94b1fbfa | 176 | // pRR - ALICE raw reader pointer |
177 | // Returns: none | |
d3da6dc4 | 178 | AliLoader *pRL=pAL->GetDetectorLoader("HMPID"); AliHMPID *pRich=(AliHMPID*)pAL->GetAliRun()->GetDetector("HMPID");//get pointers for HMPID and HMPID loader |
94b1fbfa | 179 | |
d3da6dc4 | 180 | AliHMPIDDigit dig; //tmp digit, raw digit will be converted to it |
94b1fbfa | 181 | |
182 | TObjArray digLst; Int_t iDigCnt[7]; for(Int_t i=0;i<7;i++){digLst.AddAt(new TClonesArray("AliHMPIDDigit"),i); iDigCnt[i]=0;} //tmp list of digits for allchambers | |
183 | ||
d3da6dc4 | 184 | Int_t iEvtN=0; |
185 | while(pRR->NextEvent()){//events loop | |
186 | pAL->GetEvent(iEvtN++); | |
187 | pRL->MakeTree("R"); pRich->MakeBranch("R"); | |
94b1fbfa | 188 | |
d3da6dc4 | 189 | for(Int_t iCh=0;iCh<7;iCh++){//chambers loop |
94b1fbfa | 190 | pRR->Select("HMPID",2*iCh,2*iCh+1);//select only DDL files for the current chamber |
d3da6dc4 | 191 | UInt_t w32=0; |
192 | while(pRR->ReadNextInt(w32)){//raw records loop (in selected DDL files) | |
193 | UInt_t ddl=pRR->GetDDLID(); //returns 0,1,2 ... 13 | |
94b1fbfa | 194 | dig.Raw(w32,ddl); |
da08475b | 195 | AliDebug(1,Form("Ch=%i DDL=%i raw=0x%x digit=(%3i,%3i,%3i,%3i) Q=%5.2f",iCh,ddl,w32,dig.Ch(),dig.Pc(),dig.PadPcX(),dig.PadPcY(),dig.Q())); |
a0e5c1b9 | 196 | if(!IsDigSurvive(&dig)) continue; //sigma cut test |
3c6274c1 | 197 | new((*((TClonesArray*)digLst.At(iCh)))[iDigCnt[iCh]++]) AliHMPIDDigit(dig); //add this digit to the tmp list |
d3da6dc4 | 198 | }//raw records loop |
94b1fbfa | 199 | pRR->Reset(); |
d3da6dc4 | 200 | }//chambers loop |
94b1fbfa | 201 | |
3c6274c1 | 202 | Dig2Clu(&digLst,pRich->CluLst());//cluster finder for all chambers |
203 | for(Int_t i=0;i<7;i++){digLst.At(i)->Delete(); iDigCnt[i]=0;} //clean up list of digits for all chambers | |
94b1fbfa | 204 | |
d3da6dc4 | 205 | pRL->TreeR()->Fill(); //fill tree for current event |
206 | pRL->WriteRecPoints("OVERWRITE");//write out clusters for current event | |
207 | pRich->CluReset(); | |
94b1fbfa | 208 | }//events loop |
209 | pRL->UnloadRecPoints(); | |
d3da6dc4 | 210 | }//Reconstruct raw data |
211 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
94b1fbfa | 212 | void AliHMPIDReconstructor::ConvertDigits(AliRawReader *pRR,TTree *pDigTree)const |
213 | { | |
214 | //Invoked by AliReconstruction to convert raw digits from DDL files to digits | |
215 | //Arguments: pRR - ALICE raw reader pointer | |
216 | // pDigTree - pointer to Digit tree | |
217 | // Returns: none | |
218 | AliDebug(1,"Start."); | |
219 | AliHMPIDDigit dig; //tmp digit, raw digit will be converted to it | |
220 | for(Int_t iCh=AliHMPIDDigit::kMinCh;iCh<=AliHMPIDDigit::kMaxCh;iCh++) { | |
221 | pDigTree->Branch(Form("HMPID%d",iCh),&((*fDig)[iCh]),4000,0); | |
222 | pRR->Select("HMPID",2*iCh,2*iCh+1);//select only DDL files for the current chamber | |
223 | Int_t iDigCnt=0; | |
224 | UInt_t w32=0; | |
225 | while(pRR->ReadNextInt(w32)){//raw records loop (in selected DDL files) | |
226 | UInt_t ddl=pRR->GetDDLID(); //returns 0,1,2 ... 13 | |
227 | dig.Raw(w32,ddl); | |
228 | AliDebug(1,Form("Ch=%i DDL=%i raw=0x%x digit=(%3i,%3i,%3i,%3i) Q=%5.2f",iCh,ddl,w32,dig.Ch(),dig.Pc(),dig.PadPcX(),dig.PadPcY(),dig.Q())); | |
a0e5c1b9 | 229 | if(!IsDigSurvive(&dig)) continue; //sigma cut test |
94b1fbfa | 230 | new((*((TClonesArray*)fDig->At(iCh)))[iDigCnt++]) AliHMPIDDigit(dig); //add this digit to the tmp list |
231 | }//raw records loop | |
232 | pRR->Reset(); | |
233 | }//chambers loop | |
234 | pDigTree->Fill(); | |
235 | for(Int_t iCh=AliHMPIDDigit::kMinCh;iCh<=AliHMPIDDigit::kMaxCh;iCh++)fDig->At(iCh)->Clear(); | |
236 | AliDebug(1,"Stop."); | |
237 | }//Reconstruct digits from raw digits | |
238 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
d3da6dc4 | 239 | void AliHMPIDReconstructor::FillESD(AliRunLoader *, AliESD *pESD) const |
240 | { | |
241 | // Calculates probability to be a electron-muon-pion-kaon-proton | |
242 | // from the given Cerenkov angle and momentum assuming no initial particle composition | |
243 | // (i.e. apriory probability to be the particle of the given sort is the same for all sorts) | |
244 | ||
245 | AliPID ppp; //needed | |
246 | Double_t pid[AliPID::kSPECIES],h[AliPID::kSPECIES]; | |
247 | ||
248 | for(Int_t iTrk=0;iTrk<pESD->GetNumberOfTracks();iTrk++){//ESD tracks loop | |
249 | AliESDtrack *pTrk = pESD->GetTrack(iTrk);// get next reconstructed track | |
250 | if(pTrk->GetHMPIDsignal()<=0){//HMPID does not find anything reasonable for this track, assign 0.2 for all species | |
251 | for(Int_t iPart=0;iPart<AliPID::kSPECIES;iPart++) pid[iPart]=1.0/AliPID::kSPECIES; | |
252 | pTrk->SetHMPIDpid(pid); | |
253 | continue; | |
254 | } | |
255 | Double_t pmod = pTrk->GetP(); | |
256 | Double_t hTot=0; | |
257 | for(Int_t iPart=0;iPart<AliPID::kSPECIES;iPart++){ | |
258 | Double_t mass = AliPID::ParticleMass(iPart); | |
259 | Double_t cosThetaTh = TMath::Sqrt(mass*mass+pmod*pmod)/(AliHMPIDParam::Instance()->MeanIdxRad()*pmod); | |
a1d55ff3 | 260 | if(cosThetaTh<1) //calculate the height of theoretical theta ckov on the gaus of experimental one |
261 | h[iPart] =TMath::Gaus(TMath::ACos(cosThetaTh),pTrk->GetHMPIDsignal(),TMath::Sqrt(pTrk->GetHMPIDchi2()),kTRUE); | |
d3da6dc4 | 262 | else //beta < 1/ref. idx. => no light at all |
263 | h[iPart] =0 ; | |
264 | hTot +=h[iPart]; //total height of all theoretical heights for normalization | |
265 | }//species loop | |
266 | ||
267 | Double_t hMin=TMath::Gaus(pTrk->GetHMPIDsignal()-4*TMath::Sqrt(pTrk->GetHMPIDchi2()),pTrk->GetHMPIDsignal(),TMath::Sqrt(pTrk->GetHMPIDchi2()),kTRUE);//5 sigma protection | |
268 | ||
269 | for(Int_t iPart=0;iPart<AliPID::kSPECIES;iPart++)//species loop to assign probabilities | |
270 | if(hTot>hMin) | |
271 | pid[iPart]=h[iPart]/hTot; | |
272 | else //all theoretical values are far away from experemental one | |
273 | pid[iPart]=1.0/AliPID::kSPECIES; | |
274 | pTrk->SetHMPIDpid(pid); | |
275 | }//ESD tracks loop | |
a1d55ff3 | 276 | }//FillESD() |
d3da6dc4 | 277 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |