[u/mrichter/AliRoot.git] / T0 / AliT0Reconstructor.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id$ */

#include <Riostream.h>

#include <TDirectory.h>

#include "AliRunLoader.h"
#include "AliRun.h"
#include <AliESD.h>
#include "AliLog.h"
#include <TClonesArray.h>
#include "AliT0RecPoint.h"
#include "AliRawReader.h"
#include "AliT0RawReader.h"
#include "AliT0Loader.h"
#include "AliT0digit.h"
#include "AliT0Reconstructor.h"
#include "AliT0Parameters.h"
#include "AliCDBLocal.h"
#include "AliCDBStorage.h"
#include "AliCDBManager.h"
#include "AliCDBEntry.h"

#include <TArrayI.h>
#include <TGraph.h>

ClassImp(AliT0Reconstructor)

  void  AliT0Reconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
{
  //T0 raw data-> digits conversion
 // reconstruct time information from raw data
  AliT0RawReader myrawreader(rawReader,digitsTree);
  if (!myrawreader.Next())
    AliDebug(1,Form(" no raw data found!! %i", myrawreader.Next()));
}
void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const
{
// T0 digits reconstruction
// T0RecPoint writing 

    //Q->T-> coefficients !!!! should be asked!!!
  //  Float_t ph2MIP=500;
  Float_t gain[24], timeDelayCFD[24], timeDelayLED[24];
  Float_t zdetA,zdetC;
  TObjArray slewingLED;
    
  TArrayI * fADC = new TArrayI(24); 
  TArrayI * fTimeCFD = new TArrayI(24); 
  TArrayI * fADCLED = new TArrayI(24); 
  TArrayI * fTimeLED = new TArrayI(24); 

  AliT0Parameters* param = AliT0Parameters::Instance();
  param->Init();

  Int_t mV2Mip = param->GetmV2Mip();     
  //mV2Mip = param->GetmV2Mip();     
  Int_t channelWidth = param->GetChannelWidth() ;  
  
  for (Int_t i=0; i<24; i++){
    timeDelayCFD[i] = param->GetTimeDelayCFD(i);
    timeDelayLED[i] = param->GetTimeDelayLED(i);
    gain[i] = param->GetGain(i);
    //gain[i] = 1;
    slewingLED.AddAtAndExpand(param->GetSlew(i),i);
  }
  zdetC = param->GetZposition(0);
  zdetA  = param->GetZposition(1);
    
  AliDebug(1,Form("Start DIGITS reconstruction "));
 
  TBranch *brDigits=digitsTree->GetBranch("T0");
  AliT0digit *fDigits = new AliT0digit();
  if (brDigits) {
    brDigits->SetAddress(&fDigits);
  }else{
    cerr<<"EXEC Branch T0 digits not found"<<endl;
    return;
  }
  brDigits->GetEntry(0);
  fDigits->GetTime(*fTimeCFD);
  fDigits->GetADC(*fADC);
  fDigits->GetTimeAmp(*fTimeLED);
  fDigits->GetADCAmp(*fADCLED);

  Float_t besttimeright=999999;
  Float_t besttimeleft=999999;
  Int_t pmtBestRight=99999;
  Int_t pmtBestLeft=99999;
  Float_t timeDiff=999999, meanTime=0;
  
  AliT0RecPoint* frecpoints= new AliT0RecPoint ();
  clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);

  Float_t time[24], adc[24];
  for (Int_t ipmt=0; ipmt<24; ipmt++) {
      
    if(fTimeCFD->At(ipmt)>0 ){
      time[ipmt] = channelWidth *( fTimeCFD->At(ipmt)) - 1000*timeDelayCFD[ipmt];
      Float_t adc_digPs = channelWidth * Float_t (fADCLED->At(ipmt)) ;
      adc[ipmt] = TMath::Exp(adc_digPs/1000) /gain[ipmt];
      AliDebug(1,Form(" time %f ps,  adc %f mv in MIP %i\n ",
		      time[ipmt], adc[ipmt], Int_t (adc[ipmt]/mV2Mip +0.5)));
      frecpoints->SetTime(ipmt,time[ipmt]);
      frecpoints->SetAmp(ipmt,adc[ipmt]);
    }
    else {
      time[ipmt] = 0;
      adc[ipmt] = 0;
    }
  }
  for (Int_t ipmt=0; ipmt<12; ipmt++){
    if(time[ipmt] > 1 ) {
      if(time[ipmt]<besttimeleft){
	besttimeleft=time[ipmt]; //timeleft
	pmtBestLeft=ipmt;
      }
    }
  }
  for ( Int_t ipmt=12; ipmt<24; ipmt++){
    if(time[ipmt] > 1) {
      if(time[ipmt]<besttimeright) {
	besttimeright=time[ipmt]; //timeright
        pmtBestRight=ipmt;}
    }
  }
  if(besttimeright !=999999)  frecpoints->SetTimeBestRight(Int_t(besttimeright));
  if( besttimeleft != 999999 ) frecpoints->SetTimeBestLeft(Int_t(besttimeleft));
  AliDebug(1,Form(" besttimeA %f ps,  besttimeC %f ps",besttimeright, besttimeleft));
  Float_t c = 0.0299792; // cm/ps
  Float_t vertex = 0;
  if(besttimeright !=999999 && besttimeleft != 999999 ){
    timeDiff = besttimeleft - besttimeright;
    meanTime = (besttimeright + besttimeleft)/2.;
    vertex = c*(timeDiff)/2.; //-(lenr-lenl))/2;
    AliDebug(1,Form("  timeDiff %f ps,  meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex ));
    frecpoints->SetVertex(vertex);
    frecpoints->SetMeanTime(Int_t(meanTime));
    
  }
  clustersTree->Fill();
}


void AliT0Reconstructor::FillESD(AliRunLoader* runLoader, AliESD *pESD) const
{

  /***************************************************
  Resonstruct digits to vertex position
  ****************************************************/
  
  
  if (!runLoader) {
    AliError("Reconstruct >> No run loader");
    return;
  }
  
  AliDebug(1,Form("Start FillESD T0"));

  AliT0Loader* pStartLoader = (AliT0Loader*) runLoader->GetLoader("T0Loader");
 
  pStartLoader->LoadRecPoints("READ");

  TTree *treeR = pStartLoader->TreeR();
  
   AliT0RecPoint* frecpoints= new AliT0RecPoint ();
    if (!frecpoints) {
    AliError("Reconstruct Fill ESD >> no recpoints found");
    return;
  }
  
  AliDebug(1,Form("Start FillESD T0"));
  TBranch *brRec = treeR->GetBranch("T0");
  if (brRec) {
    brRec->SetAddress(&frecpoints);
  }else{
    cerr<<"EXEC Branch T0 rec not found"<<endl;
    // exit(111);
    return;
  } 
    
    brRec->GetEntry(0);
    Float_t timeStart, Zposition, amp[24], time[24];
    Int_t i;
    Zposition = frecpoints -> GetVertex();
    timeStart = frecpoints -> GetMeanTime();
    for ( i=0; i<24; i++) {
       time[i] = Float_t (frecpoints -> GetTime(i)) / 1000.; // ps to ns
      amp[i] = frecpoints -> GetAmp(i);
    }
    pESD->SetT0zVertex(Zposition); //vertex Z position 
    pESD->SetT0(timeStart);        // interaction time 
    pESD->SetT0time(time);         // best TOF on each PMT 
    pESD->SetT0amplitude(amp);     // number of particles(MIPs) on each PMT
    cout<<" ESD >> "<<Zposition<<" "<<timeStart<<endl;

    pStartLoader->UnloadRecPoints();
   
} // vertex in 3 sigma
Commit	Line	Data
dc7ca31d	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	/* $Id$ */
	17
	18	#include <Riostream.h>
	19
	20	#include <TDirectory.h>
	21
	22	#include "AliRunLoader.h"
	23	#include "AliRun.h"
	24	#include <AliESD.h>
	25	#include "AliLog.h"
	26	#include <TClonesArray.h>
	27	#include "AliT0RecPoint.h"
	28	#include "AliRawReader.h"
	29	#include "AliT0RawReader.h"
	30	#include "AliT0Loader.h"
	31	#include "AliT0digit.h"
	32	#include "AliT0Reconstructor.h"
	33	#include "AliT0Parameters.h"
	34	#include "AliCDBLocal.h"
	35	#include "AliCDBStorage.h"
	36	#include "AliCDBManager.h"
	37	#include "AliCDBEntry.h"
	38
	39	#include <TArrayI.h>
	40	#include <TGraph.h>
	41
	42	ClassImp(AliT0Reconstructor)
	43
	44	void AliT0Reconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
	45	{
	46	//T0 raw data-> digits conversion
	47	// reconstruct time information from raw data
	48	AliT0RawReader myrawreader(rawReader,digitsTree);
	49	if (!myrawreader.Next())
	50	AliDebug(1,Form(" no raw data found!! %i", myrawreader.Next()));
	51	}
	52	void AliT0Reconstructor::Reconstruct(TTreedigitsTree, TTreeclustersTree) const
	53	{
	54	// T0 digits reconstruction
	55	// T0RecPoint writing
	56
	57	//Q->T-> coefficients !!!! should be asked!!!
	58	// Float_t ph2MIP=500;
	59	Float_t gain[24], timeDelayCFD[24], timeDelayLED[24];
	60	Float_t zdetA,zdetC;
	61	TObjArray slewingLED;
	62
	63	TArrayI * fADC = new TArrayI(24);
	64	TArrayI * fTimeCFD = new TArrayI(24);
65	TArrayI * fADCLED = new TArrayI(24);
66	TArrayI * fTimeLED = new TArrayI(24);
67
68	AliT0Parameters* param = AliT0Parameters::Instance();
69	param->Init();
70
71	Int_t mV2Mip = param->GetmV2Mip();
72	//mV2Mip = param->GetmV2Mip();
73	Int_t channelWidth = param->GetChannelWidth() ;
74
75	for (Int_t i=0; i<24; i++){
76	timeDelayCFD[i] = param->GetTimeDelayCFD(i);
77	timeDelayLED[i] = param->GetTimeDelayLED(i);
78	gain[i] = param->GetGain(i);
79	//gain[i] = 1;
80	slewingLED.AddAtAndExpand(param->GetSlew(i),i);
81	}
82	zdetC = param->GetZposition(0);
83	zdetA = param->GetZposition(1);
84
85	AliDebug(1,Form("Start DIGITS reconstruction "));
86
87	TBranch *brDigits=digitsTree->GetBranch("T0");
88	AliT0digit *fDigits = new AliT0digit();
89	if (brDigits) {
90	brDigits->SetAddress(&fDigits);
91	}else{
92	cerr<<"EXEC Branch T0 digits not found"<<endl;
93	return;
94	}
95	brDigits->GetEntry(0);
96	fDigits->GetTime(*fTimeCFD);
97	fDigits->GetADC(*fADC);
98	fDigits->GetTimeAmp(*fTimeLED);
99	fDigits->GetADCAmp(*fADCLED);
100
101	Float_t besttimeright=999999;
102	Float_t besttimeleft=999999;
103	Int_t pmtBestRight=99999;
104	Int_t pmtBestLeft=99999;
105	Float_t timeDiff=999999, meanTime=0;
106
107	AliT0RecPoint* frecpoints= new AliT0RecPoint ();
108	clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
109
110	Float_t time[24], adc[24];
111	for (Int_t ipmt=0; ipmt<24; ipmt++) {
112
113	if(fTimeCFD->At(ipmt)>0 ){
114	time[ipmt] = channelWidth ( fTimeCFD->At(ipmt)) - 1000timeDelayCFD[ipmt];
115	Float_t adc_digPs = channelWidth * Float_t (fADCLED->At(ipmt)) ;
116	adc[ipmt] = TMath::Exp(adc_digPs/1000) /gain[ipmt];
117	AliDebug(1,Form(" time %f ps, adc %f mv in MIP %i\n ",
118	time[ipmt], adc[ipmt], Int_t (adc[ipmt]/mV2Mip +0.5)));
119	frecpoints->SetTime(ipmt,time[ipmt]);
120	frecpoints->SetAmp(ipmt,adc[ipmt]);
121	}
122	else {
123	time[ipmt] = 0;
124	adc[ipmt] = 0;
125	}
126	}
127	for (Int_t ipmt=0; ipmt<12; ipmt++){
128	if(time[ipmt] > 1 ) {
129	if(time[ipmt]<besttimeleft){
130	besttimeleft=time[ipmt]; //timeleft
131	pmtBestLeft=ipmt;
132	}
133	}
134	}
135	for ( Int_t ipmt=12; ipmt<24; ipmt++){
136	if(time[ipmt] > 1) {
137	if(time[ipmt]<besttimeright) {
138	besttimeright=time[ipmt]; //timeright
139	pmtBestRight=ipmt;}
140	}
141	}
142	if(besttimeright !=999999) frecpoints->SetTimeBestRight(Int_t(besttimeright));
143	if( besttimeleft != 999999 ) frecpoints->SetTimeBestLeft(Int_t(besttimeleft));
144	AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeright, besttimeleft));
145	Float_t c = 0.0299792; // cm/ps
146	Float_t vertex = 0;
147	if(besttimeright !=999999 && besttimeleft != 999999 ){
148	timeDiff = besttimeleft - besttimeright;
149	meanTime = (besttimeright + besttimeleft)/2.;
150	vertex = c*(timeDiff)/2.; //-(lenr-lenl))/2;
151	AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex ));
152	frecpoints->SetVertex(vertex);
153	frecpoints->SetMeanTime(Int_t(meanTime));
154
155	}
156	clustersTree->Fill();
157	}
158
159
160	void AliT0Reconstructor::FillESD(AliRunLoader* runLoader, AliESD *pESD) const
161	{
162
163	/***************************************************
164	Resonstruct digits to vertex position
165	****************************************************/
166
167
168	if (!runLoader) {
169	AliError("Reconstruct >> No run loader");
170	return;
171	}
172
173	AliDebug(1,Form("Start FillESD T0"));
174
175	AliT0Loader* pStartLoader = (AliT0Loader*) runLoader->GetLoader("T0Loader");
176
177	pStartLoader->LoadRecPoints("READ");
178
179	TTree *treeR = pStartLoader->TreeR();
180
181	AliT0RecPoint* frecpoints= new AliT0RecPoint ();
182	if (!frecpoints) {
183	AliError("Reconstruct Fill ESD >> no recpoints found");
184	return;
185	}
186
187	AliDebug(1,Form("Start FillESD T0"));
188	TBranch *brRec = treeR->GetBranch("T0");
189	if (brRec) {
190	brRec->SetAddress(&frecpoints);
191	}else{
192	cerr<<"EXEC Branch T0 rec not found"<<endl;
193	// exit(111);
194	return;
195	}
196
197	brRec->GetEntry(0);
198	Float_t timeStart, Zposition, amp[24], time[24];
199	Int_t i;
200	Zposition = frecpoints -> GetVertex();
201	timeStart = frecpoints -> GetMeanTime();
202	for ( i=0; i<24; i++) {
203	time[i] = Float_t (frecpoints -> GetTime(i)) / 1000.; // ps to ns
204	amp[i] = frecpoints -> GetAmp(i);
205	}
206	pESD->SetT0zVertex(Zposition); //vertex Z position
207	pESD->SetT0(timeStart); // interaction time
208	pESD->SetT0time(time); // best TOF on each PMT
209	pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT
210	cout<<" ESD >> "<<Zposition<<" "<<timeStart<<endl;
211
212	pStartLoader->UnloadRecPoints();
213
214	} // vertex in 3 sigma
215
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