Making AliLog true instanton (Jimmy)
[u/mrichter/AliRoot.git] / HMPID / AliHMPIDDigitizer.cxx
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d3da6dc4 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 **************************************************************************/
1b10372c 15//.
16//.
17//.
18//.
19//.
20#include <AliRun.h>
d3da6dc4 21#include <AliRunLoader.h>
22#include "AliRunDigitizer.h"
23#include <AliLoader.h>
24#include <AliLog.h>
1b10372c 25#include "AliHMPIDDigitizer.h"
26#include "AliHMPIDDigit.h"
27#include "AliHMPID.h"
ae5a42aa 28#include "AliHMPIDParam.h"
1b10372c 29#include <TRandom.h>
d3da6dc4 30
31ClassImp(AliHMPIDDigitizer)
32
94b1fbfa 33Bool_t AliHMPIDDigitizer::fgDoNoise=kFALSE;
d3da6dc4 34//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
35void AliHMPIDDigitizer::Exec(Option_t*)
36{
37// This methode is responsible for merging sdigits to a list of digits
38//Disintegration leeds to the fact that one hit affects several neighbouring pads, which means that the same pad might be affected by few hits.
39 AliDebug(1,Form("Start with %i input(s) for event %i",fManager->GetNinputs(),fManager->GetOutputEventNr()));
40//First we read all sdigits from all inputs
41 AliRunLoader *pInRunLoader=0;//in and out Run loaders
42 AliLoader *pInRichLoader=0;//in and out HMPID loaders
d6183365 43 static TClonesArray sdigs("AliHMPIDDigit");//tmp storage for sdigits sum up from all input files
d3da6dc4 44 Int_t total=0;
45 for(Int_t inFileN=0;inFileN<fManager->GetNinputs();inFileN++){//files loop
46 pInRunLoader = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inFileN)); //get run loader from current input
47 pInRichLoader = pInRunLoader->GetLoader("HMPIDLoader"); if(pInRichLoader==0) continue; //no HMPID in this input, check the next input
48 if (!pInRunLoader->GetAliRun()) pInRunLoader->LoadgAlice();
49 AliHMPID* pInRich=(AliHMPID*)pInRunLoader->GetAliRun()->GetDetector("HMPID"); //take HMPID from current input
50 pInRichLoader->LoadSDigits(); pInRichLoader->TreeS()->GetEntry(0); //take list of HMPID sdigits from current input
51 AliDebug(1,Form("input %i has %i sdigits",inFileN,pInRich->SdiLst()->GetEntries()));
52 for(Int_t i=0;i<pInRich->SdiLst()->GetEntries();i++){ //collect sdigits from current input
53 AliHMPIDDigit *pSDig=(AliHMPIDDigit*)pInRich->SdiLst()->At(i);
54 pSDig->AddTidOffset(fManager->GetMask(inFileN)); //apply TID shift since all inputs count tracks independently starting from 0
55 new(sdigs[total++]) AliHMPIDDigit(*pSDig);
56 }
57 pInRichLoader->UnloadSDigits(); pInRich->SdiReset(); //close current input and reset
58 }//files loop
59
60 //PH if(sdigs.GetEntries()==0) return; //no sdigits collected, nothing to convert
61
62 AliRunLoader *pOutRunLoader = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName()); //open output stream (only 1 possible)
63 AliLoader *pOutRichLoader = pOutRunLoader->GetLoader("HMPIDLoader"); //take output HMPID loader
1b10372c 64 AliRun *pArun = pOutRunLoader->GetAliRun();
65 AliHMPID *pOutRich = (AliHMPID*)pArun->GetDetector("HMPID"); //take output HMPID
d3da6dc4 66 pOutRichLoader->MakeTree("D"); pOutRich->MakeBranch("D"); //create TreeD in output stream
67
68 Sdi2Dig(&sdigs,pOutRich->DigLst());
69
70 pOutRichLoader->TreeD()->Fill(); //fill the output tree with the list of digits
71 pOutRichLoader->WriteDigits("OVERWRITE"); //serialize them to file
72
73 sdigs.Clear(); //remove all tmp sdigits
74 pOutRichLoader->UnloadDigits(); pOutRich->DigReset();
75}//Exec()
76//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
77void AliHMPIDDigitizer::Sdi2Dig(TClonesArray *pSdiLst,TObjArray *pDigLst)
78{
79// Converts list of sdigits to 7 lists of digits, one per each chamber
80// Arguments: pSDigLst - list of all sdigits
81// pDigLst - list of 7 lists of digits
82// Returns: none
83
84 TClonesArray *pLst[7]; Int_t iCnt[7];
1b10372c 85
d3da6dc4 86 for(Int_t i=0;i<7;i++){
87 pLst[i]=(TClonesArray*)(*pDigLst)[i];
3c6274c1 88 iCnt[i]=0; if(pLst[i]->GetEntries()!=0) AliErrorClass("Some of digits lists is not empty"); //in principle those lists should be empty
d3da6dc4 89 }
c5c19d6a 90
91 // make noise array
92 Float_t arrNoise[7][6][80][48];
94b1fbfa 93 if(fgDoNoise) {
ae5a42aa 94 for (Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++)
95 for (Int_t iPc=AliHMPIDParam::kMinPc;iPc<=AliHMPIDParam::kMaxPc;iPc++)
96 for(Int_t iPx=AliHMPIDParam::kMinPx;iPx<=AliHMPIDParam::kMaxPx;iPx++)
73badab2 97 for(Int_t iPy=AliHMPIDParam::kMinPy;iPy<=AliHMPIDParam::kMaxPy;iPy++) arrNoise[iCh][iPc][iPx][iPy] = gRandom->Gaus(0,1.1);
c5c19d6a 98 }
d3da6dc4 99
100 pSdiLst->Sort();
101
102 Int_t iPad=-1,iCh=-1,iNdigPad=-1,aTids[3]={-1,-1,-1}; Float_t q=-1;
103 for(Int_t i=0;i<pSdiLst->GetEntries();i++){ //sdigits loop (sorted)
104 AliHMPIDDigit *pSdig=(AliHMPIDDigit*)pSdiLst->At(i); //take current sdigit
105 if(pSdig->Pad()==iPad){ //if the same pad
106 q+=pSdig->Q(); //sum up charge
107 iNdigPad++; if(iNdigPad<=3) aTids[iNdigPad-1]=pSdig->GetTrack(0); //collect TID
108 continue;
109 }
ae5a42aa 110 if(i!=0 && AliHMPIDParam::IsOverTh(q)) new((*pLst[iCh])[iCnt[iCh]++]) AliHMPIDDigit(iPad,(Int_t)q,aTids); //do not create digit for the very first sdigit
111 iPad=pSdig->Pad(); iCh=AliHMPIDParam::A2C(iPad); //new sdigit comes, reset collectors
d3da6dc4 112 iNdigPad=1;
113 aTids[0]=pSdig->GetTrack(0);aTids[1]=aTids[2]=-1;
c5c19d6a 114 q=pSdig->Q();
94b1fbfa 115 if(fgDoNoise) q+=arrNoise[iCh][pSdig->Pc()][pSdig->PadPcX()][pSdig->PadPcY()];
c5c19d6a 116 arrNoise[iCh][pSdig->Pc()][pSdig->PadPcX()][pSdig->PadPcY()]=0;
d3da6dc4 117 }//sdigits loop (sorted)
118
ae5a42aa 119 if(AliHMPIDParam::IsOverTh(q)) new((*pLst[iCh])[iCnt[iCh]++]) AliHMPIDDigit(iPad,(Int_t)q,aTids); //add the last one, in case of empty sdigits list q=-1
c5c19d6a 120// add noise pad above threshold with no signal merged...if any
94b1fbfa 121 if(!fgDoNoise) return;
c5c19d6a 122 aTids[0]=aTids[1]=aTids[2]=-1;
ec575c20 123 for (Int_t iChCurr=AliHMPIDParam::kMinCh;iChCurr<=AliHMPIDParam::kMaxCh;iChCurr++)
ae5a42aa 124 for (Int_t iPc=AliHMPIDParam::kMinPc;iPc<=AliHMPIDParam::kMaxPc;iPc++)
125 for(Int_t iPx=AliHMPIDParam::kMinPx;iPx<=AliHMPIDParam::kMaxPx;iPx++)
126 for(Int_t iPy=AliHMPIDParam::kMinPy;iPy<=AliHMPIDParam::kMaxPy;iPy++) {
ec575c20 127 Float_t qNoise = arrNoise[iChCurr][iPc][iPx][iPy];
128 if(AliHMPIDParam::IsOverTh(qNoise)) new((*pLst[iChCurr])[iCnt[iChCurr]++]) AliHMPIDDigit(AliHMPIDParam::Abs(iChCurr,iPc,iPx,iPy),(Int_t)qNoise,aTids);
c5c19d6a 129 }
130
d3da6dc4 131}//Sdi2Dig()
132//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++