Line data Source code
1 : /**************************************************************************
2 : * Copyright(c) 1998-2000, 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 : //.
17 : //.
18 : //.
19 : //.
20 : #include <AliRun.h>
21 : #include <AliRunLoader.h>
22 : #include "AliDigitizationInput.h"
23 : #include <AliLoader.h>
24 : #include "AliLog.h"
25 : #include <AliCDBEntry.h>
26 : #include <AliCDBManager.h>
27 : #include "AliHMPIDDigitizer.h"
28 : #include "AliHMPIDReconstructor.h"
29 : #include "AliHMPIDDigit.h"
30 : #include "AliHMPID.h"
31 : #include "AliHMPIDParam.h"
32 : #include <TRandom.h>
33 : #include <TMath.h>
34 : #include <TTree.h>
35 : #include <TObjArray.h>
36 :
37 12 : ClassImp(AliHMPIDDigitizer)
38 :
39 : Bool_t AliHMPIDDigitizer::fgDoNoise=kTRUE;
40 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
41 : void AliHMPIDDigitizer::Digitize(Option_t*)
42 : {
43 : // This methode is responsible for merging sdigits to a list of digits
44 : //Disintegration leeds to the fact that one hit affects several neighbouring pads, which means that the same pad might be affected by few hits.
45 16 : AliDebug(1,Form("Start with %i input(s) for event %i",fDigInput->GetNinputs(),fDigInput->GetOutputEventNr()));
46 : //First we read all sdigits from all inputs
47 : AliRunLoader *pInRunLoader=0;//in and out Run loaders
48 : AliLoader *pInRichLoader=0;//in and out HMPID loaders
49 7 : static TClonesArray sdigs("AliHMPIDDigit");//tmp storage for sdigits sum up from all input files
50 : Int_t total=0;
51 16 : for(Int_t inFileN=0;inFileN<fDigInput->GetNinputs();inFileN++){//files loop
52 4 : pInRunLoader = AliRunLoader::GetRunLoader(fDigInput->GetInputFolderName(inFileN)); //get run loader from current input
53 4 : pInRichLoader = pInRunLoader->GetLoader("HMPIDLoader"); if(pInRichLoader==0) continue; //no HMPID in this input, check the next input
54 4 : if (!pInRunLoader->GetAliRun()) pInRunLoader->LoadgAlice();
55 4 : AliHMPID* pInRich=(AliHMPID*)pInRunLoader->GetAliRun()->GetDetector("HMPID"); //take HMPID from current input
56 4 : pInRichLoader->LoadSDigits(); pInRichLoader->TreeS()->GetEntry(0); //take list of HMPID sdigits from current input
57 12 : AliDebug(1,Form("input %i has %i sdigits",inFileN,pInRich->SdiLst()->GetEntries()));
58 5240 : for(Int_t i=0;i<pInRich->SdiLst()->GetEntries();i++){ //collect sdigits from current input
59 2616 : AliHMPIDDigit *pSDig=(AliHMPIDDigit*)pInRich->SdiLst()->At(i);
60 2616 : pSDig->AddTidOffset(fDigInput->GetMask(inFileN)); //apply TID shift since all inputs count tracks independently starting from 0
61 2616 : new(sdigs[total++]) AliHMPIDDigit(*pSDig);
62 : }
63 4 : pInRichLoader->UnloadSDigits(); pInRich->SdiReset(); //close current input and reset
64 4 : }//files loop
65 :
66 : //PH if(sdigs.GetEntries()==0) return; //no sdigits collected, nothing to convert
67 :
68 4 : AliRunLoader *pOutRunLoader = AliRunLoader::GetRunLoader(fDigInput->GetOutputFolderName()); //open output stream (only 1 possible)
69 4 : AliLoader *pOutRichLoader = pOutRunLoader->GetLoader("HMPIDLoader"); //take output HMPID loader
70 4 : AliRun *pArun = pOutRunLoader->GetAliRun();
71 4 : AliHMPID *pOutRich = (AliHMPID*)pArun->GetDetector("HMPID"); //take output HMPID
72 4 : pOutRichLoader->MakeTree("D"); pOutRich->MakeBranch("D"); //create TreeD in output stream
73 :
74 4 : Sdi2Dig(&sdigs,pOutRich->DigLst());
75 :
76 4 : pOutRichLoader->TreeD()->Fill(); //fill the output tree with the list of digits
77 4 : pOutRichLoader->WriteDigits("OVERWRITE"); //serialize them to file
78 :
79 4 : sdigs.Clear(); //remove all tmp sdigits
80 4 : pOutRichLoader->UnloadDigits(); pOutRich->DigReset();
81 4 : }//Exec()
82 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
83 : void AliHMPIDDigitizer::Sdi2Dig(TClonesArray *pSdiLst,TObjArray *pDigLst)
84 : {
85 : // Converts list of sdigits to 7 lists of digits, one per each chamber
86 : // Arguments: pSDigLst - list of all sdigits
87 : // pDigLst - list of 7 lists of digits
88 : // Returns: none
89 :
90 8 : TClonesArray *pLst[7]; Int_t iCnt[7];
91 :
92 64 : for(Int_t i=0;i<7;i++){
93 28 : pLst[i]=(TClonesArray*)(*pDigLst)[i];
94 28 : iCnt[i]=0; if(pLst[i]->GetEntries()!=0) AliErrorClass("Some of digits lists is not empty"); //in principle those lists should be empty
95 : }
96 :
97 : // make noise array
98 4 : Float_t arrNoise[7][6][80][48], arrSigmaPed[7][6][80][48];
99 4 : if(fgDoNoise) {
100 64 : for (Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++)
101 392 : for (Int_t iPc=AliHMPIDParam::kMinPc;iPc<=AliHMPIDParam::kMaxPc;iPc++)
102 27216 : for(Int_t iPx=AliHMPIDParam::kMinPx;iPx<=AliHMPIDParam::kMaxPx;iPx++)
103 1317120 : for(Int_t iPy=AliHMPIDParam::kMinPy;iPy<=AliHMPIDParam::kMaxPy;iPy++){
104 645120 : arrNoise[iCh][iPc][iPx][iPy] = gRandom->Gaus(0,1.);
105 645120 : arrSigmaPed[iCh][iPc][iPx][iPy] = 1.;
106 : }
107 :
108 8 : AliCDBEntry *pDaqSigEnt = AliCDBManager::Instance()->Get("HMPID/Calib/DaqSig"); //contains TObjArray of TObjArray 14 TMatrixF sigmas values for pads
109 :
110 4 : if(pDaqSigEnt){
111 4 : TObjArray *pDaqSig = (TObjArray*)pDaqSigEnt->GetObject();
112 64 : for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop
113 28 : TMatrixF *pM = (TMatrixF*)pDaqSig->At(iCh);
114 392 : for (Int_t iPc=AliHMPIDParam::kMinPc;iPc<=AliHMPIDParam::kMaxPc;iPc++)
115 27216 : for(Int_t iPx=AliHMPIDParam::kMinPx;iPx<=AliHMPIDParam::kMaxPx;iPx++)
116 1317120 : for(Int_t iPy=AliHMPIDParam::kMinPy;iPy<=AliHMPIDParam::kMaxPy;iPy++){
117 645120 : Int_t padX = (iPc%2)*AliHMPIDParam::kPadPcX+iPx;
118 645120 : Int_t padY = (iPc/2)*AliHMPIDParam::kPadPcY+iPy;
119 1290240 : if((*pM)(padX,padY)>0.){
120 1290240 : arrNoise[iCh][iPc][iPx][iPy] = gRandom->Gaus(0,(*pM)(padX,padY));
121 645120 : arrSigmaPed[iCh][iPc][iPx][iPy] = (*pM)(padX,padY);}
122 : else{
123 0 : arrNoise[iCh][iPc][iPx][iPy] = gRandom->Gaus(0,1.);
124 0 : arrSigmaPed[iCh][iPc][iPx][iPy] = 1.;}
125 : }
126 : }
127 4 : }
128 4 : }
129 :
130 4 : pSdiLst->Sort();
131 :
132 4 : Int_t iPad=-1,iCh=-1,iNdigPad=-1,aTids[3]={-1,-1,-1}; Float_t q=-1;
133 5240 : for(Int_t i=0;i<pSdiLst->GetEntries();i++){ //sdigits loop (sorted)
134 2616 : AliHMPIDDigit *pSdig=(AliHMPIDDigit*)pSdiLst->At(i); //take current sdigit
135 2616 : if(pSdig->Pad()==iPad){ //if the same pad
136 935 : q+=pSdig->Q(); //sum up charge
137 1673 : iNdigPad++; if(iNdigPad<=3) aTids[iNdigPad-1]=pSdig->GetTrack(0); //collect TID
138 935 : continue;
139 : }
140 1681 : if(i!=0 && iCh>=AliHMPIDParam::kMinCh && iCh<=AliHMPIDParam::kMaxCh){
141 1677 : AliHMPIDParam::Instance()->SetThreshold((TMath::Nint(arrSigmaPed[iCh][pSdig->Pc()][pSdig->PadPcX()][pSdig->PadPcY()])*AliHMPIDParam::Nsig()));
142 3323 : if(AliHMPIDParam::IsOverTh(q)) new((*pLst[iCh])[iCnt[iCh]++]) AliHMPIDDigit(iPad,(Int_t)q,aTids);} //do not create digit for the very first sdigit
143 :
144 1681 : iPad=pSdig->Pad(); iCh=AliHMPIDParam::A2C(iPad); //new sdigit comes, reset collectors
145 : iNdigPad=1;
146 1681 : aTids[0]=pSdig->GetTrack(0);aTids[1]=aTids[2]=-1;
147 1681 : q=pSdig->Q();
148 3362 : if(fgDoNoise) q+=arrNoise[iCh][pSdig->Pc()][pSdig->PadPcX()][pSdig->PadPcY()];
149 1681 : arrNoise[iCh][pSdig->Pc()][pSdig->PadPcX()][pSdig->PadPcY()]=0;
150 1681 : }//sdigits loop (sorted)
151 :
152 4 : if(iCh>=AliHMPIDParam::kMinCh && iCh<=AliHMPIDParam::kMaxCh){
153 4 : Int_t pc = AliHMPIDParam::A2P(iPad);
154 4 : Int_t px = AliHMPIDParam::A2X(iPad);
155 4 : Int_t py = AliHMPIDParam::A2Y(iPad);
156 4 : AliHMPIDParam::Instance()->SetThreshold((TMath::Nint(arrSigmaPed[iCh][pc][px][py])*AliHMPIDParam::Nsig()));
157 4 : if(AliHMPIDParam::IsOverTh(q)) new((*pLst[iCh])[iCnt[iCh]++]) AliHMPIDDigit(iPad,(Int_t)q,aTids);
158 4 : } //add the last one, in case of empty sdigits list q=-1
159 :
160 : // add noise pad above threshold with no signal merged...if any
161 4 : if(!fgDoNoise) return;
162 :
163 4 : aTids[0]=aTids[1]=aTids[2]=-1;
164 64 : for (Int_t iChCurr=AliHMPIDParam::kMinCh;iChCurr<=AliHMPIDParam::kMaxCh;iChCurr++){
165 392 : for (Int_t iPc=AliHMPIDParam::kMinPc;iPc<=AliHMPIDParam::kMaxPc;iPc++)
166 27216 : for(Int_t iPx=AliHMPIDParam::kMinPx;iPx<=AliHMPIDParam::kMaxPx;iPx++)
167 1317120 : for(Int_t iPy=AliHMPIDParam::kMinPy;iPy<=AliHMPIDParam::kMaxPy;iPy++) {
168 645120 : Float_t qNoise = arrNoise[iChCurr][iPc][iPx][iPy];
169 645120 : AliHMPIDParam::Instance()->SetThreshold((TMath::Nint(arrSigmaPed[iChCurr][iPc][iPx][iPy])*AliHMPIDParam::Nsig()));
170 1289386 : if(AliHMPIDParam::IsOverTh(qNoise)) new((*pLst[iChCurr])[iCnt[iChCurr]++]) AliHMPIDDigit(AliHMPIDParam::Abs(iChCurr,iPc,iPx,iPy),(Int_t)qNoise,aTids);
171 : }
172 : }
173 8 : }//Sdi2Dig()
174 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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