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 //////////////////////////////////////////////////////////////////////////////
28 #include <TObjArray.h>
30 #include <TDirectory.h>
34 #include "AliTOFDigitizer.h"
36 #include "AliTOFSDigitizer.h"
37 #include "AliTOFhit.h"
38 #include "AliTOFdigit.h"
39 #include "AliTOFSDigit.h"
40 #include "AliTOFHitMap.h"
41 #include "AliDigitizer.h"
42 #include "AliRunDigitizer.h"
46 #include "AliRunLoader.h"
47 #include "AliLoader.h"
51 #include <Riostream.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.");
112 AliLoader* outgime = outrl->GetLoader("TOFLoader");
115 AliError("Can not get TOF Loader from Output Run Loader.");
119 TTree* treeD = outgime->TreeD();
122 outgime->MakeTree("D");
123 treeD = outgime->TreeD();
125 //Make branch for digits (to be created in Init())
126 tof->MakeBranchInTree(treeD,branchname,&fDigits,4000);
128 // container for all summed sdigits (to be created in Init())
129 fSDigitsArray=new TClonesArray("AliTOFSDigit",1000);
131 // create hit map (to be created in Init())
132 fhitMap = new AliTOFHitMap(fSDigitsArray);
134 // Loop over files to digitize
136 for (Int_t inputFile=0; inputFile<fManager->GetNinputs();
138 ReadSDigit(inputFile);
144 // free used memory for Hit Map in current event
146 fSDigitsArray->Delete();
147 delete fSDigitsArray;
151 outgime->WriteDigits("OVERWRITE");
152 outgime->UnloadDigits();
158 //---------------------------------------------------------------------
160 void AliTOFDigitizer::CreateDigits()
162 // loop on sdigits container to fill the AliTOFdigit TClonesArray
163 // start digitizing all the collected sdigits
165 Int_t ndump=0; // dump the first ndump created digits for each event
167 // get the total number of collected sdigits
168 Int_t ndig = fSDigitsArray->GetEntriesFast();
170 for (Int_t k = 0; k < ndig; k++) {
172 Int_t vol[5]; // location for a digit
173 for (Int_t i=0; i<5; i++) vol[i] = -1;
175 // Get the information for this digit
176 AliTOFSDigit *tofsdigit = (AliTOFSDigit *) fSDigitsArray->UncheckedAt(k);
178 Int_t nslot=tofsdigit->GetNDigits(); // get the number of slots
179 // for current sdigit
181 // TOF sdigit volumes (always the same for all slots)
182 Int_t sector = tofsdigit->GetSector(); // range [0-17]
183 Int_t plate = tofsdigit->GetPlate(); // range [0- 4]
184 Int_t strip = tofsdigit->GetStrip(); // range [0-19]
185 Int_t padz = tofsdigit->GetPadz(); // range [0- 1]
186 Int_t padx = tofsdigit->GetPadx(); // range [0-47]
194 //--------------------- QA section ----------------------
195 // in the while, I perform QA
196 Bool_t isSDigitBad = (sector<0 || sector>17 || plate<0 || plate >4 || padz<0 || padz>1 || padx<0 || padx>47);
199 AliFatal("strange sdigit found");
201 //-------------------------------------------------------
203 //------------------- Dump section ----------------------
205 cout << k << "-th | " << "Sector " << sector << " | Plate " << plate << " | Strip " << strip << " | PadZ " << padz << " | PadX " << padx << endl;
206 cout << k << "-th sdigit" << endl;
207 cout << "----------------------------------------------------"<< endl;
209 // ------------------------------------------------------
211 // start loop on number of slots for current sdigit
212 for (Int_t islot = 0; islot < nslot; islot++) {
213 Float_t digit[2]; // TOF digit variables
214 Int_t tracknum[kMAXDIGITS]; // contributing tracks for the current slot
216 Float_t tdc=tofsdigit->GetTdc(islot); digit[0]=tdc;
217 Float_t adc=tofsdigit->GetAdc(islot); digit[1]=adc;
219 tracknum[0]=tofsdigit->GetTrack(islot,0);
220 tracknum[1]=tofsdigit->GetTrack(islot,1);
221 tracknum[2]=tofsdigit->GetTrack(islot,2);
223 // new with placement must be used
224 // adding a TOF digit for each slot
225 TClonesArray &aDigits = *fDigits;
226 Int_t last=fDigits->GetEntriesFast();
227 new (aDigits[last]) AliTOFdigit(tracknum, vol, digit);
231 } // end loop on sdigits - end digitizing all collected sdigits
235 //---------------------------------------------------------------------
237 void AliTOFDigitizer::ReadSDigit(Int_t inputFile )
239 // Read sdigits for current event and inputFile;
240 // store them into the sdigits container
241 // and update the hit map
242 // SDigits from different files are assumed to
243 // be created with the same simulation parameters.
245 // get the treeS from manager
246 AliRunLoader* rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile));
249 AliError(Form("Can not find Run Loader in input %d folder.",inputFile));
253 AliLoader* gime = rl->GetLoader("TOFLoader");
256 AliError(Form("Can not get TOF Loader from Input %d Run Loader.",inputFile));
260 TTree* currentTreeS=gime->TreeS();
261 if (currentTreeS == 0x0)
263 Int_t retval = gime->LoadSDigits();
266 AliError(Form("Error occured while loading S. Digits for Input %d",inputFile));
269 currentTreeS=gime->TreeS();
270 if (currentTreeS == 0x0)
272 AliError(Form("Can not get S. Digits Tree for Input %d",inputFile));
276 // get the branch TOF inside the treeS
277 TClonesArray * sdigitsDummyContainer= new TClonesArray("AliTOFSDigit", 1000);
279 // check if the branch exist
280 TBranch* tofBranch=currentTreeS->GetBranch("TOF");
283 AliFatal(Form("TOF branch not found for input %d",inputFile));
286 tofBranch->SetAddress(&sdigitsDummyContainer);
288 Int_t nEntries = (Int_t)tofBranch->GetEntries();
290 // Loop through all entries in the tree
293 for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) {
296 nbytes += tofBranch->GetEvent(iEntry);
298 // Get the number of sdigits
299 Int_t ndig = sdigitsDummyContainer->GetEntriesFast();
301 for (Int_t k=0; k<ndig; k++) {
302 AliTOFSDigit *tofSdigit= (AliTOFSDigit*) sdigitsDummyContainer->UncheckedAt(k);
304 Int_t vol[5]; // location for a sdigit
305 for (Int_t i=0; i<5; i++) vol[i] = -1;
307 // check the sdigit volume
308 vol[0] = tofSdigit->GetSector();
309 vol[1] = tofSdigit->GetPlate();
310 vol[2] = tofSdigit->GetStrip();
311 vol[3] = tofSdigit->GetPadx();
312 vol[4] = tofSdigit->GetPadz();
314 if (fhitMap->TestHit(vol) != kEmpty) {
315 AliTOFSDigit *sdig = static_cast<AliTOFSDigit*>(fhitMap->GetHit(vol));
316 sdig->Update(tofSdigit);
320 CollectSDigit(tofSdigit); // collect the current sdigit
321 fhitMap->SetHit(vol); // update the hitmap for location vol
323 } // if (hitMap->TestHit(vol) != kEmpty)
325 } // for (Int_t k=0; k<ndig; k++)
326 sdigitsDummyContainer->Delete();
328 } // end loop on entries
330 delete sdigitsDummyContainer;
335 //_____________________________________________________________________________
336 void AliTOFDigitizer::CollectSDigit(AliTOFSDigit * sdigit)
339 // Add a TOF sdigit in container
340 // new with placement must be used
341 TClonesArray &aSDigitsArray = *fSDigitsArray;
342 Int_t last=fSDigitsArray->GetEntriesFast();
343 // make a copy of the current sdigit and
344 // put it into tmp array
345 new (aSDigitsArray[last]) AliTOFSDigit(*sdigit);