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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
33ClassImp(AliHMPIDReconstructor)
34
35Int_t AliHMPIDReconstructor::fgStreamLevel = 0; // stream (debug) level
36
37//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
38AliHMPIDReconstructor::AliHMPIDReconstructor():AliReconstructor(),fDaqSig(0),fDig(0),fClu(0)
39{
40//
41//ctor
42//
43 AliHMPIDParam::Instance(); //geometry loaded for reconstruction
44
45 fClu=new TObjArray(AliHMPIDParam::kMaxCh+1); fClu->SetOwner(kTRUE);
46 fDig=new TObjArray(AliHMPIDParam::kMaxCh+1); fDig->SetOwner(kTRUE);
47
48 for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){
49 fDig->AddAt(new TClonesArray("AliHMPIDDigit",24000),i);
50 TClonesArray *pClus = new TClonesArray("AliHMPIDCluster",24000);
51 pClus->SetUniqueID(i);
52 fClu->AddAt(pClus,i);
53 }
54
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
59 AliDebug(1,Form("DaqSigCut successfully loaded for chamber %i -> %i ",iCh,(Int_t)fDaqSig->At(iCh)->GetUniqueID()));
60 }
61}//AliHMPIDReconstructor
62//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
63void 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 TMatrixF padMap(AliHMPIDParam::kMinPx,AliHMPIDParam::kMaxPcx,AliHMPIDParam::kMinPy,AliHMPIDParam::kMaxPcy); //pads map for single chamber 0..159 x 0..143
72
73 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop
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
76
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
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
90 clu.Solve(pCluCur,pUserCut,isTryUnfold); //solve this cluster and add all unfolded clusters to provided list
91 clu.Reset(); //empty current cluster
92 }//digits loop for current chamber
93 }//chambers loop
94}//Dig2Clu()
95//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
96void AliHMPIDReconstructor::FormClu(AliHMPIDCluster *pClu,AliHMPIDDigit *pDig,TClonesArray *pDigLst,TMatrixF *pDigMap)
97{
98// Forms the initial cluster as a combination of all adjascent digits. Starts from the given digit then calls itself recursevly for all neighbours.
99// Arguments: pClu - pointer to cluster being formed
100// Returns: none
101 pClu->DigAdd(pDig);//take this digit in cluster
102
103 Int_t cnt=0,cx[4],cy[4];
104
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
109
110 for (Int_t i=0;i<cnt;i++){//neighbours loop
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
112 }//neighbours loop
113}//FormClu()
114//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
115void AliHMPIDReconstructor::Reconstruct(TTree *pDigTree,TTree *pCluTree)const
116{
117//Invoked by AliReconstruction to convert digits to clusters i.e. reconstruct simulated data
118//Arguments: pDigTree - pointer to Digit tree
119// pCluTree - poitner to Cluster tree
120// Returns: none
121 AliDebug(1,"Start.");
122 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
123 pCluTree->Branch(Form("HMPID%d",iCh),&((*fClu)[iCh]),7);
124 pDigTree->SetBranchAddress(Form("HMPID%d",iCh),&((*fDig)[iCh]));
125 }
126
127 Int_t pUserCut[7];
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
143 pDigTree->GetEntry(0);
144 Dig2Clu(fDig,fClu,pUserCut); //cluster finder
145 pCluTree->Fill(); //fill tree for current event
146
147 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
148 fDig->At(iCh)->Clear();
149 fClu->At(iCh)->Clear();
150 }
151
152
153 AliDebug(1,"Stop.");
154}//Reconstruct(for simulated digits)
155//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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.");
163// Int_t digcnt=0;
164
165 Int_t iDigCnt[7]={0,0,0,0,0,0,0};
166
167 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
168 pDigTree->Branch(Form("HMPID%d",iCh),&((*fDig)[iCh]));
169 }
170
171 Int_t pUserCut[7];
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
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]);
194 if(!IsDigSurvive(pUserCut,&dig)) continue;
195 new((*((TClonesArray*)fDig->At(ch)))[iDigCnt[ch]++]) AliHMPIDDigit(dig); //add this digit to the tmp list
196 }
197 }
198
199 pDigTree->Fill();
200
201 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++)fDig->At(iCh)->Clear();
202
203
204 AliDebug(1,"Stop.");
205}//Reconstruct digits from raw digits
206//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++