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Adding the full covariance matrix for the TOF space-points
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68861244 1/**************************************************************************
8e72349e 2 * Copyright(c) 1998-2000, ALICE Experiment at CERN, All rights reserved. *
68861244 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
68861244 16//_________________________________________________________________________
8e72349e 17// This is a TTask that makes TOF-Digits out of TOF-SDigits.
18// The simulation of the detector is performed at sdigits level:
19// during digitization the unique task is the sum of all sdigits in the
20// same pad.
68861244 21// Digits are written to TreeD in branch "TOF".
68861244 22//
23// -- Author : F. Pierella (Bologna University) pierella@bo.infn.it
24//////////////////////////////////////////////////////////////////////////////
25
55cb22a1 26
d3c7bfac 27#include <stdlib.h>
28#include <Riostream.h>
8e72349e 29#include <TTree.h>
30#include <TVector.h>
31#include <TObjArray.h>
32#include <TFile.h>
33#include <TDirectory.h>
34#include <TRandom.h>
55cb22a1 35#include "TF1.h"
36#include "TH1F.h"
37#include "TList.h"
38#include "TRandom.h"
68861244 39
d3c7bfac 40#include "AliLog.h"
41#include "AliRun.h"
42#include "AliRunLoader.h"
43#include "AliLoader.h"
44#include "AliDigitizer.h"
45#include "AliRunDigitizer.h"
46#include "AliPDG.h"
68861244 47
0efc163f 48#include "AliTOF.h"
55cb22a1 49#include "AliTOFDigitizer.h"
8e72349e 50#include "AliTOFSDigitizer.h"
68861244 51#include "AliTOFhit.h"
8e72349e 52#include "AliTOFdigit.h"
53#include "AliTOFSDigit.h"
54#include "AliTOFHitMap.h"
55cb22a1 55#include "AliTOFChannel.h"
56#include "AliTOFCal.h"
57#include "AliTOFGeometryV5.h"
68861244 58
59ClassImp(AliTOFDigitizer)
60
8e72349e 61//___________________________________________
62 AliTOFDigitizer::AliTOFDigitizer() :AliDigitizer()
68861244 63{
8e72349e 64 // Default ctor - don't use it
65 fDigits=0;
66 fSDigitsArray=0;
67 fhitMap=0;
55cb22a1 68 fGeom=0x0;
68861244 69}
70
8e72349e 71//___________________________________________
72AliTOFDigitizer::AliTOFDigitizer(AliRunDigitizer* manager)
73 :AliDigitizer(manager)
68861244 74{
340693af 75 //ctor with RunDigitizer
8e72349e 76 fDigits=0;
77 fSDigitsArray=0;
78 fhitMap=0;
55cb22a1 79 fGeom=0x0;
68861244 80}
81
8e72349e 82//------------------------------------------------------------------------
68861244 83AliTOFDigitizer::~AliTOFDigitizer()
84{
8e72349e 85 // Destructor
68861244 86}
8e72349e 87
88//---------------------------------------------------------------------
89
d076c8d5 90void AliTOFDigitizer::Exec(Option_t* /*option*/)
68861244 91{
8e72349e 92 //
93 // Perform digitization and merging.
94 // The algorithm is the following:
95 // - a hitmap is created to check if a pad is already activated;
96 // - an sdigits container is created to collect all sdigits from
97 // different files;
98 // - sdigits are summed using the hitmap;
99 // - the sdigits container is used to create the array of AliTOFdigit.
100 //
68861244 101
d076c8d5 102 AliDebug(1, "");
68861244 103
68861244 104
8e72349e 105 // get the ptr to TOF detector
106 AliTOF * tof = (AliTOF *) gAlice->GetDetector("TOF") ;
68861244 107
8e72349e 108 //Make branches
109 char branchname[20];
110 sprintf (branchname, "%s", tof->GetName ());
111
112 fDigits=new TClonesArray("AliTOFdigit",4000);
88cb7938 113
114 AliRunLoader* outrl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
115 if (outrl == 0x0)
116 {
d076c8d5 117 AliError("Can not find Run Loader in output folder.");
88cb7938 118 return;
119 }
120
d3c7bfac 121 outrl->CdGAFile();
122 TFile *in=(TFile*)gFile;
123 TDirectory *savedir=gDirectory;
124
d3c7bfac 125 if (!in->IsOpen()) {
126 AliWarning("Geometry file is not open default TOF geometry will be used");
55cb22a1 127 fGeom = new AliTOFGeometryV5();
d3c7bfac 128 }
129 else {
130 in->cd();
55cb22a1 131 fGeom = (AliTOFGeometry*)in->Get("TOFgeometry");
d3c7bfac 132 }
133
134 savedir->cd();
135
88cb7938 136 AliLoader* outgime = outrl->GetLoader("TOFLoader");
137 if (outgime == 0x0)
138 {
d076c8d5 139 AliError("Can not get TOF Loader from Output Run Loader.");
88cb7938 140 return;
141 }
142
143 TTree* treeD = outgime->TreeD();
144 if (treeD == 0x0)
145 {
146 outgime->MakeTree("D");
147 treeD = outgime->TreeD();
148 }
8e72349e 149 //Make branch for digits (to be created in Init())
150 tof->MakeBranchInTree(treeD,branchname,&fDigits,4000);
151
152 // container for all summed sdigits (to be created in Init())
153 fSDigitsArray=new TClonesArray("AliTOFSDigit",1000);
68861244 154
8e72349e 155 // create hit map (to be created in Init())
55cb22a1 156 fhitMap = new AliTOFHitMap(fSDigitsArray, fGeom);
68861244 157
8e72349e 158 // Loop over files to digitize
159
160 for (Int_t inputFile=0; inputFile<fManager->GetNinputs();
161 inputFile++) {
162 ReadSDigit(inputFile);
88cb7938 163 }
8e72349e 164
165 // create digits
166 CreateDigits();
167
168 // free used memory for Hit Map in current event
169 delete fhitMap;
170 fSDigitsArray->Delete();
a5c70f8e 171 delete fSDigitsArray;
172
8e72349e 173 treeD->Fill();
174
88cb7938 175 outgime->WriteDigits("OVERWRITE");
176 outgime->UnloadDigits();
8e72349e 177 fDigits->Delete();
178 delete fDigits;
179
180}
181
182//---------------------------------------------------------------------
183
55cb22a1 184void AliTOFDigitizer::CreateDigits()
8e72349e 185{
186 // loop on sdigits container to fill the AliTOFdigit TClonesArray
187 // start digitizing all the collected sdigits
188
c7764ee9 189 Int_t ndump=0; // dump the first ndump created digits for each event
8e72349e 190
191 // get the total number of collected sdigits
192 Int_t ndig = fSDigitsArray->GetEntriesFast();
193
194 for (Int_t k = 0; k < ndig; k++) {
68861244 195
da3d3acd 196 Int_t vol[5]; // location for a digit
7e6dce66 197 for (Int_t i=0; i<5; i++) vol[i] = -1;
68861244 198
8e72349e 199 // Get the information for this digit
200 AliTOFSDigit *tofsdigit = (AliTOFSDigit *) fSDigitsArray->UncheckedAt(k);
68861244 201
8e72349e 202 Int_t nslot=tofsdigit->GetNDigits(); // get the number of slots
203 // for current sdigit
68861244 204
8e72349e 205 // TOF sdigit volumes (always the same for all slots)
da3d3acd 206 Int_t sector = tofsdigit->GetSector(); // range [0-17]
207 Int_t plate = tofsdigit->GetPlate(); // range [0- 4]
d3c7bfac 208 Int_t strip = tofsdigit->GetStrip(); // range [0-14/18/19]
da3d3acd 209 Int_t padz = tofsdigit->GetPadz(); // range [0- 1]
210 Int_t padx = tofsdigit->GetPadx(); // range [0-47]
68861244 211
8e72349e 212 vol[0] = sector;
213 vol[1] = plate;
214 vol[2] = strip;
215 vol[3] = padx;
216 vol[4] = padz;
68861244 217
8e72349e 218 //--------------------- QA section ----------------------
219 // in the while, I perform QA
7e6dce66 220 Bool_t isSDigitBad = (sector<0 || sector>17 || plate<0 || plate >4 || padz<0 || padz>1 || padx<0 || padx>47);
68861244 221
8e72349e 222 if (isSDigitBad) {
d3c7bfac 223 //AliFatal("strange sdigit found");
224 AliFatal(Form("strange sdigit found %3i %2i %2i %3i %3i", sector, plate, padz, padx, strip));
68861244 225 }
8e72349e 226 //-------------------------------------------------------
68861244 227
8e72349e 228 //------------------- Dump section ----------------------
229 if(k<ndump){
230 cout << k << "-th | " << "Sector " << sector << " | Plate " << plate << " | Strip " << strip << " | PadZ " << padz << " | PadX " << padx << endl;
231 cout << k << "-th sdigit" << endl;
232 cout << "----------------------------------------------------"<< endl;
68861244 233 }
8e72349e 234 // ------------------------------------------------------
68861244 235
8e72349e 236 // start loop on number of slots for current sdigit
237 for (Int_t islot = 0; islot < nslot; islot++) {
238 Float_t digit[2]; // TOF digit variables
239 Int_t tracknum[kMAXDIGITS]; // contributing tracks for the current slot
240
241 Float_t tdc=tofsdigit->GetTdc(islot); digit[0]=tdc;
242 Float_t adc=tofsdigit->GetAdc(islot); digit[1]=adc;
243
244 tracknum[0]=tofsdigit->GetTrack(islot,0);
245 tracknum[1]=tofsdigit->GetTrack(islot,1);
246 tracknum[2]=tofsdigit->GetTrack(islot,2);
68861244 247
7f1e928b 248 // new with placement must be used
8e72349e 249 // adding a TOF digit for each slot
7f1e928b 250 TClonesArray &aDigits = *fDigits;
251 Int_t last=fDigits->GetEntriesFast();
252 new (aDigits[last]) AliTOFdigit(tracknum, vol, digit);
253
68861244 254 }
68861244 255
8e72349e 256 } // end loop on sdigits - end digitizing all collected sdigits
55cb22a1 257
258 //Insert Decalibration
259
260 AliTOFcalib * calib = new AliTOFcalib(fGeom);
261 InitDecalibration(calib);
262 DecalibrateTOFSignal(calib);
263 delete calib;
68861244 264}
8e72349e 265
266//---------------------------------------------------------------------
267
268void AliTOFDigitizer::ReadSDigit(Int_t inputFile )
68861244 269{
8e72349e 270 // Read sdigits for current event and inputFile;
271 // store them into the sdigits container
272 // and update the hit map
273 // SDigits from different files are assumed to
274 // be created with the same simulation parameters.
68861244 275
8e72349e 276 // get the treeS from manager
88cb7938 277 AliRunLoader* rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile));
278 if (rl == 0x0)
279 {
d076c8d5 280 AliError(Form("Can not find Run Loader in input %d folder.",inputFile));
88cb7938 281 return;
282 }
283
284 AliLoader* gime = rl->GetLoader("TOFLoader");
285 if (gime == 0x0)
286 {
d076c8d5 287 AliError(Form("Can not get TOF Loader from Input %d Run Loader.",inputFile));
88cb7938 288 return;
289 }
290
291 TTree* currentTreeS=gime->TreeS();
292 if (currentTreeS == 0x0)
293 {
294 Int_t retval = gime->LoadSDigits();
295 if (retval)
296 {
d076c8d5 297 AliError(Form("Error occured while loading S. Digits for Input %d",inputFile));
88cb7938 298 return;
299 }
300 currentTreeS=gime->TreeS();
301 if (currentTreeS == 0x0)
302 {
d076c8d5 303 AliError(Form("Can not get S. Digits Tree for Input %d",inputFile));
88cb7938 304 return;
305 }
306 }
8e72349e 307 // get the branch TOF inside the treeS
308 TClonesArray * sdigitsDummyContainer= new TClonesArray("AliTOFSDigit", 1000);
309
310 // check if the branch exist
311 TBranch* tofBranch=currentTreeS->GetBranch("TOF");
312
313 if(!tofBranch){
d076c8d5 314 AliFatal(Form("TOF branch not found for input %d",inputFile));
8e72349e 315 }
68861244 316
8e72349e 317 tofBranch->SetAddress(&sdigitsDummyContainer);
68861244 318
8e72349e 319 Int_t nEntries = (Int_t)tofBranch->GetEntries();
320
321 // Loop through all entries in the tree
b020b05f 322 Int_t nbytes = 0;
8e72349e 323
324 for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) {
68861244 325
8e72349e 326 // Import the tree
327 nbytes += tofBranch->GetEvent(iEntry);
68861244 328
8e72349e 329 // Get the number of sdigits
330 Int_t ndig = sdigitsDummyContainer->GetEntriesFast();
331
332 for (Int_t k=0; k<ndig; k++) {
333 AliTOFSDigit *tofSdigit= (AliTOFSDigit*) sdigitsDummyContainer->UncheckedAt(k);
334
da3d3acd 335 Int_t vol[5]; // location for a sdigit
7e6dce66 336 for (Int_t i=0; i<5; i++) vol[i] = -1;
da3d3acd 337
8e72349e 338 // check the sdigit volume
339 vol[0] = tofSdigit->GetSector();
340 vol[1] = tofSdigit->GetPlate();
341 vol[2] = tofSdigit->GetStrip();
342 vol[3] = tofSdigit->GetPadx();
343 vol[4] = tofSdigit->GetPadz();
344
345 if (fhitMap->TestHit(vol) != kEmpty) {
346 AliTOFSDigit *sdig = static_cast<AliTOFSDigit*>(fhitMap->GetHit(vol));
347 sdig->Update(tofSdigit);
348
349 } else {
350
351 CollectSDigit(tofSdigit); // collect the current sdigit
352 fhitMap->SetHit(vol); // update the hitmap for location vol
353
354 } // if (hitMap->TestHit(vol) != kEmpty)
355
356 } // for (Int_t k=0; k<ndig; k++)
a5c70f8e 357 sdigitsDummyContainer->Delete();
8e72349e 358
359 } // end loop on entries
360
a5c70f8e 361 delete sdigitsDummyContainer;
8e72349e 362
363}
364
365
366//_____________________________________________________________________________
367void AliTOFDigitizer::CollectSDigit(AliTOFSDigit * sdigit)
368{
369 //
7f1e928b 370 // Add a TOF sdigit in container
371 // new with placement must be used
372 TClonesArray &aSDigitsArray = *fSDigitsArray;
373 Int_t last=fSDigitsArray->GetEntriesFast();
374 // make a copy of the current sdigit and
375 // put it into tmp array
376 new (aSDigitsArray[last]) AliTOFSDigit(*sdigit);
68861244 377}
55cb22a1 378
379//_____________________________________________________________________________
340693af 380void AliTOFDigitizer::InitDecalibration( AliTOFcalib *calib) const {
28dd10b6 381 calib->ReadSimParFromCDB("TOF/Calib", 0);
55cb22a1 382}
383//---------------------------------------------------------------------
384void AliTOFDigitizer::DecalibrateTOFSignal( AliTOFcalib *calib){
385
386 // Read Calibration parameters from the CDB
387
388 AliTOFCal * cal= calib->GetTOFCalSimArray();
389
390 AliInfo(Form("Size of AliTOFCal = %i",cal->NPads()));
391 for (Int_t ipad = 0 ; ipad<cal->NPads(); ipad++){
340693af 392 AliTOFChannel *calChannel = cal->GetChannel(ipad);
55cb22a1 393 Float_t par[6];
394 for (Int_t j = 0; j<6; j++){
340693af 395 par[j]=calChannel->GetSlewPar(j);
55cb22a1 396 }
397 }
398
399 // Initialize Quantities to Simulate ToT Spectra
400
401
402 TH1F * hToT= calib->GetTOFSimToT();
403 Int_t nbins = hToT->GetNbinsX();
340693af 404 Float_t delta = hToT->GetBinWidth(1);
405 Float_t maxch = hToT->GetBinLowEdge(nbins)+delta;
55cb22a1 406 Float_t minch = hToT->GetBinLowEdge(1);
407 Float_t max=0,min=0; //maximum and minimum value of the distribution
408 Int_t maxbin=0,minbin=0; //maximum and minimum bin of the distribution
409 for (Int_t ii=nbins; ii>0; ii--){
410 if (hToT->GetBinContent(ii)!= 0) {
340693af 411 max = maxch - (nbins-ii-1)*delta;
55cb22a1 412 maxbin = ii;
413 break;}
414 }
415 for (Int_t j=1; j<nbins; j++){
416 if (hToT->GetBinContent(j)!= 0) {
340693af 417 min = minch + (j-1)*delta;
55cb22a1 418 minbin = j;
419 break;}
420 }
340693af 421 Float_t maxToT=max;
422 Float_t minToT=min;
423 Float_t maxToTDistr=hToT->GetMaximum();
55cb22a1 424
425
426 // Loop on TOF Digits
427
428 Bool_t dbEntry=kFALSE;
429 Int_t ndigits = fDigits->GetEntriesFast();
430 for (Int_t i=0;i<ndigits;i++){
431 AliTOFdigit * dig = (AliTOFdigit*)fDigits->At(i);
432 Int_t detId[5];
433 detId[0] = dig->GetSector();
434 detId[1] = dig->GetPlate();
435 detId[2] = dig->GetStrip();
436 detId[3] = dig->GetPadz();
437 detId[4] = dig->GetPadx();
438 // For Data with no Miscalibration, set ToT signal == Adc
439 dig->SetToT(dig->GetAdc());
440 if(hToT->GetEntries()>0){
441 Float_t trix = 0;
442 Float_t triy = 0;
340693af 443 Float_t simToT = 0;
444 while (simToT <= triy){
55cb22a1 445 trix = gRandom->Rndm(i);
446 triy = gRandom->Rndm(i);
340693af 447 trix = (maxToT-minToT)*trix + minToT;
448 triy = maxToTDistr*triy;
55cb22a1 449 Int_t binx=hToT->FindBin(trix);
340693af 450 simToT=hToT->GetBinContent(binx);
55cb22a1 451 }
452 // Setting realistic ToT signal (only for Miscalibrated Data)
453 dig->SetToT(trix);
454 }
455 Int_t index = calib->GetIndex(detId);
340693af 456 AliTOFChannel *calChannel = cal->GetChannel(index);
55cb22a1 457 Float_t par[6];
458 for (Int_t j = 0; j<6; j++){
340693af 459 par[j]=calChannel->GetSlewPar(j);
55cb22a1 460 if(par[j]!=0)dbEntry=kTRUE;
461 }
462
340693af 463 Float_t tToT= dig->GetToT();
55cb22a1 464 dig->SetTdcND(dig->GetTdc());
465 Float_t tdc = ((dig->GetTdc())*AliTOFGeometry::TdcBinWidth()+32)*1.E-3; //tof signal in ns
340693af 466 Float_t timeoffset=par[0] + tToT*par[1] +tToT*tToT*par[2] +tToT*tToT*tToT*par[3] +tToT*tToT*tToT*tToT*par[4] +tToT*tToT*tToT*tToT*tToT*par[5];
55cb22a1 467 Float_t timeSlewed = tdc + timeoffset;
468 // Setting Decalibrated Time signal
469 dig->SetTdc((timeSlewed*1E3-32)/AliTOFGeometry::TdcBinWidth());
470 }
471
472 if(hToT->GetEntries()<=0 || !dbEntry){
473 AliInfo("Standard Production, no miscalibrated digits");
474 }else{
475 AliInfo("Miscalibrated digits");
476 }
477
478 return;
479}
480