Protection against floating point exception
[u/mrichter/AliRoot.git] / T0 / AliT0Reconstructor.cxx
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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"
dc7ca31d 23#include <AliESD.h>
24#include "AliLog.h"
c41ceaac 25#include "AliT0Loader.h"
dc7ca31d 26#include "AliT0RecPoint.h"
27#include "AliRawReader.h"
28#include "AliT0RawReader.h"
dc7ca31d 29#include "AliT0digit.h"
30#include "AliT0Reconstructor.h"
31#include "AliT0Parameters.h"
c41ceaac 32#include "AliT0Calibrator.h"
dc7ca31d 33#include "AliCDBLocal.h"
34#include "AliCDBStorage.h"
35#include "AliCDBManager.h"
36#include "AliCDBEntry.h"
37
38#include <TArrayI.h>
39#include <TGraph.h>
bd375212 40//#include <TGeoManager.h>
41//#include <TClonesArray.h>
42//#include <TString.h>
43//#include <TGeoPNEntry.h>
44//#include <TGeoPhysicalNode.h>
45//#include <TGeoHMatrix.h>
dc7ca31d 46
47ClassImp(AliT0Reconstructor)
48
c41ceaac 49 AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(),
bd375212 50 fZposition(0)
c41ceaac 51
e0bba6cc 52{
c41ceaac 53 AliDebug(1,"Start reconstructor ");
54}
55//____________________________________________________________________
e0bba6cc 56
c41ceaac 57AliT0Reconstructor::AliT0Reconstructor(const AliT0Reconstructor &r):
c41ceaac 58 fZposition(0)
59
60{
61 //
62 // AliT0Reconstructor copy constructor
63 //
e0bba6cc 64
c41ceaac 65 ((AliT0Reconstructor &) r).Copy(*this);
e0bba6cc 66
67}
68
c41ceaac 69//_____________________________________________________________________________
70AliT0Reconstructor &AliT0Reconstructor::operator=(const AliT0Reconstructor &r)
dc7ca31d 71{
c41ceaac 72 //
73 // Assignment operator
74 //
75
76 if (this != &r) ((AliT0Reconstructor &) r).Copy(*this);
77 return *this;
e0bba6cc 78
dc7ca31d 79}
c41ceaac 80
81//_____________________________________________________________________________
82
dc7ca31d 83void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const
c41ceaac 84
dc7ca31d 85{
86// T0 digits reconstruction
87// T0RecPoint writing
88
c41ceaac 89
90 Float_t timeDelayLED[24];
dc7ca31d 91 Float_t zdetA,zdetC;
c41ceaac 92 TObjArray slewingLEDrec;
93 TObjArray walk;
dc7ca31d 94
c41ceaac 95 TArrayI * timeCFD = new TArrayI(24);
96 TArrayI * timeLED = new TArrayI(24);
97 TArrayI * chargeQT0 = new TArrayI(24);
98 TArrayI * chargeQT1 = new TArrayI(24);
99
dc7ca31d 100 AliT0Parameters* param = AliT0Parameters::Instance();
101 param->Init();
c41ceaac 102 AliT0Calibrator *calib=new AliT0Calibrator();
dc7ca31d 103
104 Int_t mV2Mip = param->GetmV2Mip();
105 //mV2Mip = param->GetmV2Mip();
106 Int_t channelWidth = param->GetChannelWidth() ;
107
108 for (Int_t i=0; i<24; i++){
c41ceaac 109 TGraph* gr = param ->GetSlewRec(i);
110 slewingLEDrec.AddAtAndExpand(gr,i) ;
dc7ca31d 111 }
5325480c 112 zdetC = param->GetZPosition("C");
113 zdetA = param->GetZPosition("A");
114
dc7ca31d 115
116 AliDebug(1,Form("Start DIGITS reconstruction "));
e0bba6cc 117
dc7ca31d 118 TBranch *brDigits=digitsTree->GetBranch("T0");
e0bba6cc 119 AliT0digit *fDigits = new AliT0digit() ;
dc7ca31d 120 if (brDigits) {
121 brDigits->SetAddress(&fDigits);
122 }else{
123 cerr<<"EXEC Branch T0 digits not found"<<endl;
124 return;
125 }
e0bba6cc 126
c41ceaac 127 digitsTree->GetEvent(0);
128 digitsTree->GetEntry(0);
129 brDigits->GetEntry(0);
130 fDigits->GetTimeCFD(*timeCFD);
131 fDigits->GetTimeLED(*timeLED);
132 fDigits->GetQT0(*chargeQT0);
133 fDigits->GetQT1(*chargeQT1);
134
135 Float_t besttimeA=999999;
136 Float_t besttimeC=999999;
137 Int_t pmtBestA=99999;
138 Int_t pmtBestC=99999;
dc7ca31d 139 Float_t timeDiff=999999, meanTime=0;
140
e0bba6cc 141
142
143 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
144 clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
dc7ca31d 145
146 Float_t time[24], adc[24];
147 for (Int_t ipmt=0; ipmt<24; ipmt++) {
c41ceaac 148 if(timeCFD->At(ipmt)>0 ){
149 Int_t qt0= chargeQT0->At(ipmt);
150 Int_t qt1= chargeQT1->At(ipmt);
151 if((qt1-qt0)>0) adc[ipmt] = TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000));
152 time[ipmt] = channelWidth * (calib-> WalkCorrection( ipmt,qt1 , timeCFD->At(ipmt) ) ) ;
153
154 //LED
155 Double_t sl = (timeLED->At(ipmt) - timeCFD->At(ipmt)- (1000.*timeDelayLED[ipmt]/channelWidth))*channelWidth;
156 Double_t qt=((TGraph*)slewingLEDrec.At(ipmt))->Eval(sl/1000.);
dc7ca31d 157 frecpoints->SetTime(ipmt,time[ipmt]);
158 frecpoints->SetAmp(ipmt,adc[ipmt]);
c41ceaac 159 frecpoints->SetAmpLED(ipmt,qt);
dc7ca31d 160 }
161 else {
162 time[ipmt] = 0;
163 adc[ipmt] = 0;
164 }
165 }
e0bba6cc 166
dc7ca31d 167 for (Int_t ipmt=0; ipmt<12; ipmt++){
168 if(time[ipmt] > 1 ) {
c41ceaac 169 if(time[ipmt]<besttimeC){
170 besttimeC=time[ipmt]; //timeC
171 pmtBestC=ipmt;
dc7ca31d 172 }
173 }
174 }
175 for ( Int_t ipmt=12; ipmt<24; ipmt++){
176 if(time[ipmt] > 1) {
c41ceaac 177 if(time[ipmt]<besttimeA) {
178 besttimeA=time[ipmt]; //timeA
179 pmtBestA=ipmt;}
dc7ca31d 180 }
181 }
c41ceaac 182 if(besttimeA !=999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
183 if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
184 AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeA, besttimeC));
dc7ca31d 185 Float_t c = 0.0299792; // cm/ps
186 Float_t vertex = 0;
c41ceaac 187 if(besttimeA !=999999 && besttimeC != 999999 ){
188 timeDiff = besttimeC - besttimeA;
189 meanTime = (besttimeA + besttimeC)/2.;
dc7ca31d 190 vertex = c*(timeDiff)/2.; //-(lenr-lenl))/2;
191 AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex ));
192 frecpoints->SetVertex(vertex);
193 frecpoints->SetMeanTime(Int_t(meanTime));
194
195 }
196 clustersTree->Fill();
bd375212 197
198 delete timeCFD;
199 delete timeLED;
200 delete chargeQT0;
201 delete chargeQT1;
dc7ca31d 202}
203
204
c41ceaac 205//_______________________________________________________________________
206
207void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
208{
209// T0 raw ->
210// T0RecPoint writing
211
212 //Q->T-> coefficients !!!! should be asked!!!
213 Float_t timeDelayLED[24];
214 Float_t zdetA,zdetC;
5325480c 215 Int_t allData[110][5];
216 TObjArray slewingLEDrec;
c41ceaac 217 TObjArray walk;
218
219 TArrayI * timeCFD = new TArrayI(24);
220 TArrayI * timeLED = new TArrayI(24);
221 TArrayI * chargeQT0 = new TArrayI(24);
222 TArrayI * chargeQT1 = new TArrayI(24);
223
5325480c 224 for (Int_t i=0; i<110; i++) {
225 allData[i][0]=0;
226 }
227
c41ceaac 228 AliT0RawReader myrawreader(rawReader);
229 if (!myrawreader.Next())
230 AliDebug(1,Form(" no raw data found!! %i", myrawreader.Next()));
c41ceaac 231 for (Int_t i=0; i<110; i++) {
232 allData[i][0]=myrawreader.GetData(i,0);
233 }
234
235 AliT0Parameters* param = AliT0Parameters::Instance();
236 param->Init();
237 AliT0Calibrator *calib=new AliT0Calibrator();
238
239 Int_t mV2Mip = param->GetmV2Mip();
240 //mV2Mip = param->GetmV2Mip();
241 Int_t channelWidth = param->GetChannelWidth() ;
242
243 for (Int_t i=0; i<24; i++){
244 TGraph* gr = param ->GetSlewRec(i);
245 slewingLEDrec.AddAtAndExpand(gr,i) ;
246 }
247
5325480c 248 zdetC = param->GetZPosition("T0/C/PMT1");
249 zdetA = param->GetZPosition("T0/A/PMT15");
250
251 for (Int_t in=0; in<24; in++)
c41ceaac 252 {
253 timeLED->AddAt(allData[in+1][0],in);
254 timeCFD->AddAt(allData[in+25][0],in);
255 chargeQT1->AddAt(allData[in+55][0],in);
256 chargeQT0->AddAt(allData[in+79][0],in);
257 AliDebug(10, Form(" readed Raw %i %i %i %i %i", in, timeLED->At(in),timeCFD->At(in),chargeQT0->At(in),chargeQT1->At(in)));
258 }
259
260 Float_t besttimeA=999999;
261 Float_t besttimeC=999999;
262 Int_t pmtBestA=99999;
263 Int_t pmtBestC=99999;
264 Float_t timeDiff=999999, meanTime=0;
265
266
267 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
268
269 recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
270
271
272 Float_t time[24], adc[24];
273 for (Int_t ipmt=0; ipmt<24; ipmt++) {
274 if(timeCFD->At(ipmt)>0 ){
275 Int_t qt0= chargeQT0->At(ipmt);
276 Int_t qt1= chargeQT1->At(ipmt);
277 if((qt1-qt0)>0) adc[ipmt] = TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000));
5325480c 278 time[ipmt] = channelWidth * (calib-> WalkCorrection( ipmt,qt1 , timeCFD->At(ipmt) ) ) ;
c41ceaac 279 Double_t sl = (timeLED->At(ipmt) - timeCFD->At(ipmt)- (1000.*timeDelayLED[ipmt]/channelWidth))*channelWidth;
280 Double_t qt=((TGraph*)slewingLEDrec.At(ipmt))->Eval(sl/1000.);
281 frecpoints->SetTime(ipmt,time[ipmt]);
282 frecpoints->SetAmp(ipmt,adc[ipmt]);
283 frecpoints->SetAmpLED(ipmt,qt);
284 }
285 else {
286 time[ipmt] = 0;
287 adc[ipmt] = 0;
288 }
289 }
290
291 for (Int_t ipmt=0; ipmt<12; ipmt++){
292 if(time[ipmt] > 1 ) {
293 if(time[ipmt]<besttimeC){
294 besttimeC=time[ipmt]; //timeC
295 pmtBestC=ipmt;
296 }
297 }
298 }
299 for ( Int_t ipmt=12; ipmt<24; ipmt++){
300 if(time[ipmt] > 1) {
301 if(time[ipmt]<besttimeA) {
302 besttimeA=time[ipmt]; //timeA
303 pmtBestA=ipmt;}
304 }
305 }
306 if(besttimeA !=999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
307 if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
308 AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeA, besttimeC));
309 Float_t c = 0.0299792; // cm/ps
310 Float_t vertex = 0;
311 if(besttimeA !=999999 && besttimeC != 999999 ){
312 timeDiff = besttimeC - besttimeA;
313 meanTime = (besttimeA + besttimeC)/2.;
314 vertex = c*(timeDiff)/2.; //-(lenr-lenl))/2;
315 AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex ));
316 frecpoints->SetVertex(vertex);
317 frecpoints->SetMeanTime(Int_t(meanTime));
318
319 }
320 recTree->Fill();
bd375212 321
322
323 delete timeCFD;
324 delete timeLED;
325 delete chargeQT0;
326 delete chargeQT1;
327
c41ceaac 328}
329//____________________________________________________________
330
dc7ca31d 331void AliT0Reconstructor::FillESD(AliRunLoader* runLoader, AliESD *pESD) const
332{
333
334 /***************************************************
335 Resonstruct digits to vertex position
336 ****************************************************/
337
338
339 if (!runLoader) {
340 AliError("Reconstruct >> No run loader");
341 return;
342 }
343
344 AliDebug(1,Form("Start FillESD T0"));
345
346 AliT0Loader* pStartLoader = (AliT0Loader*) runLoader->GetLoader("T0Loader");
347
348 pStartLoader->LoadRecPoints("READ");
349
350 TTree *treeR = pStartLoader->TreeR();
351
352 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
353 if (!frecpoints) {
354 AliError("Reconstruct Fill ESD >> no recpoints found");
355 return;
356 }
357
358 AliDebug(1,Form("Start FillESD T0"));
359 TBranch *brRec = treeR->GetBranch("T0");
360 if (brRec) {
361 brRec->SetAddress(&frecpoints);
362 }else{
363 cerr<<"EXEC Branch T0 rec not found"<<endl;
364 // exit(111);
365 return;
366 }
367
368 brRec->GetEntry(0);
369 Float_t timeStart, Zposition, amp[24], time[24];
c41ceaac 370 Int_t mean0 = 12450;
dc7ca31d 371 Int_t i;
372 Zposition = frecpoints -> GetVertex();
c41ceaac 373 timeStart = frecpoints -> GetMeanTime() - mean0;
dc7ca31d 374 for ( i=0; i<24; i++) {
375 time[i] = Float_t (frecpoints -> GetTime(i)) / 1000.; // ps to ns
376 amp[i] = frecpoints -> GetAmp(i);
377 }
378 pESD->SetT0zVertex(Zposition); //vertex Z position
379 pESD->SetT0(timeStart); // interaction time
380 pESD->SetT0time(time); // best TOF on each PMT
381 pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT
5325480c 382
383 AliDebug(1,Form(" Z position %f cm, T0 %f ps",Zposition , timeStart));
dc7ca31d 384
385 pStartLoader->UnloadRecPoints();
386
387} // vertex in 3 sigma
388
389
390
391
392
393