1 /**************************************************************************
2 * Copyright(c) 1998-2000, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 //_________________________________________________________________________
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
21 // Digits are written to TreeD in branch "TOF".
23 // -- Author : F. Pierella (Bologna University) pierella@bo.infn.it
24 //////////////////////////////////////////////////////////////////////////////
27 #include <Riostream.h>
31 #include <TObjArray.h>
33 #include <TDirectory.h>
38 #include "AliRunLoader.h"
39 #include "AliLoader.h"
40 #include "AliDigitizer.h"
41 #include "AliRunDigitizer.h"
44 #include "AliTOFDigitizer.h"
46 #include "AliTOFSDigitizer.h"
47 #include "AliTOFhit.h"
48 #include "AliTOFdigit.h"
49 #include "AliTOFSDigit.h"
50 #include "AliTOFHitMap.h"
51 #include "AliTOFcalib.h"
53 ClassImp(AliTOFDigitizer)
55 //___________________________________________
56 AliTOFDigitizer::AliTOFDigitizer() :AliDigitizer()
58 // Default ctor - don't use it
64 //___________________________________________
65 AliTOFDigitizer::AliTOFDigitizer(AliRunDigitizer* manager)
66 :AliDigitizer(manager)
73 //------------------------------------------------------------------------
74 AliTOFDigitizer::~AliTOFDigitizer()
79 //---------------------------------------------------------------------
81 void AliTOFDigitizer::Exec(Option_t* /*option*/)
84 // Perform digitization and merging.
85 // The algorithm is the following:
86 // - a hitmap is created to check if a pad is already activated;
87 // - an sdigits container is created to collect all sdigits from
89 // - sdigits are summed using the hitmap;
90 // - the sdigits container is used to create the array of AliTOFdigit.
96 // get the ptr to TOF detector
97 AliTOF * tof = (AliTOF *) gAlice->GetDetector("TOF") ;
101 sprintf (branchname, "%s", tof->GetName ());
103 fDigits=new TClonesArray("AliTOFdigit",4000);
105 AliRunLoader* outrl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
108 AliError("Can not find Run Loader in output folder.");
113 TFile *in=(TFile*)gFile;
114 TDirectory *savedir=gDirectory;
116 AliTOFGeometry *tofGeometry;
118 AliWarning("Geometry file is not open default TOF geometry will be used");
119 tofGeometry = new AliTOFGeometry();
123 tofGeometry = (AliTOFGeometry*)in->Get("TOFgeometry");
128 AliLoader* outgime = outrl->GetLoader("TOFLoader");
131 AliError("Can not get TOF Loader from Output Run Loader.");
135 TTree* treeD = outgime->TreeD();
138 outgime->MakeTree("D");
139 treeD = outgime->TreeD();
141 //Make branch for digits (to be created in Init())
142 tof->MakeBranchInTree(treeD,branchname,&fDigits,4000);
144 // container for all summed sdigits (to be created in Init())
145 fSDigitsArray=new TClonesArray("AliTOFSDigit",1000);
147 // create hit map (to be created in Init())
148 fhitMap = new AliTOFHitMap(fSDigitsArray, tofGeometry);
150 // Loop over files to digitize
152 for (Int_t inputFile=0; inputFile<fManager->GetNinputs();
154 ReadSDigit(inputFile);
160 // free used memory for Hit Map in current event
162 fSDigitsArray->Delete();
163 delete fSDigitsArray;
167 outgime->WriteDigits("OVERWRITE");
168 outgime->UnloadDigits();
174 //---------------------------------------------------------------------
176 void AliTOFDigitizer::CreateDigits(Option_t *option)
178 // loop on sdigits container to fill the AliTOFdigit TClonesArray
179 // start digitizing all the collected sdigits
181 Int_t ndump=0; // dump the first ndump created digits for each event
183 // get the total number of collected sdigits
184 Int_t ndig = fSDigitsArray->GetEntriesFast();
186 for (Int_t k = 0; k < ndig; k++) {
188 Int_t vol[5]; // location for a digit
189 for (Int_t i=0; i<5; i++) vol[i] = -1;
191 // Get the information for this digit
192 AliTOFSDigit *tofsdigit = (AliTOFSDigit *) fSDigitsArray->UncheckedAt(k);
194 Int_t nslot=tofsdigit->GetNDigits(); // get the number of slots
195 // for current sdigit
197 // TOF sdigit volumes (always the same for all slots)
198 Int_t sector = tofsdigit->GetSector(); // range [0-17]
199 Int_t plate = tofsdigit->GetPlate(); // range [0- 4]
200 Int_t strip = tofsdigit->GetStrip(); // range [0-14/18/19]
201 Int_t padz = tofsdigit->GetPadz(); // range [0- 1]
202 Int_t padx = tofsdigit->GetPadx(); // range [0-47]
210 //--------------------- QA section ----------------------
211 // in the while, I perform QA
212 Bool_t isSDigitBad = (sector<0 || sector>17 || plate<0 || plate >4 || padz<0 || padz>1 || padx<0 || padx>47);
215 //AliFatal("strange sdigit found");
216 AliFatal(Form("strange sdigit found %3i %2i %2i %3i %3i", sector, plate, padz, padx, strip));
218 //-------------------------------------------------------
220 //------------------- Dump section ----------------------
222 cout << k << "-th | " << "Sector " << sector << " | Plate " << plate << " | Strip " << strip << " | PadZ " << padz << " | PadX " << padx << endl;
223 cout << k << "-th sdigit" << endl;
224 cout << "----------------------------------------------------"<< endl;
226 // ------------------------------------------------------
228 // start loop on number of slots for current sdigit
229 for (Int_t islot = 0; islot < nslot; islot++) {
230 Float_t digit[2]; // TOF digit variables
231 Int_t tracknum[kMAXDIGITS]; // contributing tracks for the current slot
233 Float_t tdc=tofsdigit->GetTdc(islot); digit[0]=tdc;
234 Float_t adc=tofsdigit->GetAdc(islot); digit[1]=adc;
236 tracknum[0]=tofsdigit->GetTrack(islot,0);
237 tracknum[1]=tofsdigit->GetTrack(islot,1);
238 tracknum[2]=tofsdigit->GetTrack(islot,2);
240 // new with placement must be used
241 // adding a TOF digit for each slot
242 TClonesArray &aDigits = *fDigits;
243 Int_t last=fDigits->GetEntriesFast();
244 new (aDigits[last]) AliTOFdigit(tracknum, vol, digit);
248 } // end loop on sdigits - end digitizing all collected sdigits
249 if(strstr(option,"DECALIB")){
250 AliTOFcalib * cal = new AliTOFcalib();
252 cal->DecalibrateDigits(fDigits);
256 //---------------------------------------------------------------------
258 void AliTOFDigitizer::ReadSDigit(Int_t inputFile )
260 // Read sdigits for current event and inputFile;
261 // store them into the sdigits container
262 // and update the hit map
263 // SDigits from different files are assumed to
264 // be created with the same simulation parameters.
266 // get the treeS from manager
267 AliRunLoader* rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile));
270 AliError(Form("Can not find Run Loader in input %d folder.",inputFile));
274 AliLoader* gime = rl->GetLoader("TOFLoader");
277 AliError(Form("Can not get TOF Loader from Input %d Run Loader.",inputFile));
281 TTree* currentTreeS=gime->TreeS();
282 if (currentTreeS == 0x0)
284 Int_t retval = gime->LoadSDigits();
287 AliError(Form("Error occured while loading S. Digits for Input %d",inputFile));
290 currentTreeS=gime->TreeS();
291 if (currentTreeS == 0x0)
293 AliError(Form("Can not get S. Digits Tree for Input %d",inputFile));
297 // get the branch TOF inside the treeS
298 TClonesArray * sdigitsDummyContainer= new TClonesArray("AliTOFSDigit", 1000);
300 // check if the branch exist
301 TBranch* tofBranch=currentTreeS->GetBranch("TOF");
304 AliFatal(Form("TOF branch not found for input %d",inputFile));
307 tofBranch->SetAddress(&sdigitsDummyContainer);
309 Int_t nEntries = (Int_t)tofBranch->GetEntries();
311 // Loop through all entries in the tree
314 for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) {
317 nbytes += tofBranch->GetEvent(iEntry);
319 // Get the number of sdigits
320 Int_t ndig = sdigitsDummyContainer->GetEntriesFast();
322 for (Int_t k=0; k<ndig; k++) {
323 AliTOFSDigit *tofSdigit= (AliTOFSDigit*) sdigitsDummyContainer->UncheckedAt(k);
325 Int_t vol[5]; // location for a sdigit
326 for (Int_t i=0; i<5; i++) vol[i] = -1;
328 // check the sdigit volume
329 vol[0] = tofSdigit->GetSector();
330 vol[1] = tofSdigit->GetPlate();
331 vol[2] = tofSdigit->GetStrip();
332 vol[3] = tofSdigit->GetPadx();
333 vol[4] = tofSdigit->GetPadz();
335 if (fhitMap->TestHit(vol) != kEmpty) {
336 AliTOFSDigit *sdig = static_cast<AliTOFSDigit*>(fhitMap->GetHit(vol));
337 sdig->Update(tofSdigit);
341 CollectSDigit(tofSdigit); // collect the current sdigit
342 fhitMap->SetHit(vol); // update the hitmap for location vol
344 } // if (hitMap->TestHit(vol) != kEmpty)
346 } // for (Int_t k=0; k<ndig; k++)
347 sdigitsDummyContainer->Delete();
349 } // end loop on entries
351 delete sdigitsDummyContainer;
356 //_____________________________________________________________________________
357 void AliTOFDigitizer::CollectSDigit(AliTOFSDigit * sdigit)
360 // Add a TOF sdigit in container
361 // new with placement must be used
362 TClonesArray &aSDigitsArray = *fSDigitsArray;
363 Int_t last=fSDigitsArray->GetEntriesFast();
364 // make a copy of the current sdigit and
365 // put it into tmp array
366 new (aSDigitsArray[last]) AliTOFSDigit(*sdigit);