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Access to angle alpha in TRD (M.Ivanov)
[u/mrichter/AliRoot.git] / MUON / AliMUONMerger.cxx
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66f93042 1/**************************************************************************
2 * Copyright(c) 1998-2000, 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
88cb7938 16/* $Id$ */
ba030c0e 17
116cbefd 18#include <TObjArray.h>
88cb7938 19#include <TFile.h>
30178c30 20#include <TError.h>
21//#include <TTree.h>
22//#include <TDirectory.h>
66f93042 23
116cbefd 24#include "AliMUONMerger.h"
30178c30 25#include "AliMUON.h"
66f93042 26#include "AliMUONPadHit.h"
66f93042 27#include "AliMUONTransientDigit.h"
30178c30 28#include "AliHitMap.h"
29//#include "AliMUONChamber.h"
30//#include "AliMUONConstants.h"
31//#include "AliMUONHit.h"
32//#include "AliMUONHitMapA1.h"
33//#include "AliRun.h"
66f93042 34
35ClassImp(AliMUONMerger)
36
11ca64ac 37//----------------------------------------------------------------------
66f93042 38AliMUONMerger::AliMUONMerger()
39{
40// Default constructor
41 fEvNrSig = 0;
42 fEvNrBgr = 0;
43 fMerge = kDigitize;
44 fFnBgr = 0;
45 fHitMap = 0;
46 fList = 0;
47 fTrH1 = 0;
48 fHitsBgr = 0;
49 fPadHitsBgr = 0;
50 fHitMap = 0;
51 fList = 0;
77ccf5b0 52 fBgrFile = 0;
ba030c0e 53 fDebug = 0;
66f93042 54}
55
11ca64ac 56//----------------------------------------------------------------------
57AliMUONMerger::AliMUONMerger(const AliMUONMerger&)
58{
59// Protected copy constructor
60
61 Fatal("AliMUONMergerModule", "Not implemented.");
62}
63
66f93042 64//------------------------------------------------------------------------
65AliMUONMerger::~AliMUONMerger()
66{
67// Destructor
68 if (fTrH1) delete fTrH1;
69 if (fHitsBgr) delete fHitsBgr;
70 if (fPadHitsBgr) delete fPadHitsBgr;
3ec837bb 71 if (fHitMap) delete [] fHitMap;
66f93042 72 if (fList) delete fList;
77ccf5b0 73 if (fBgrFile) delete fBgrFile;
66f93042 74}
75
11ca64ac 76//----------------------------------------------------------------------
77AliMUONMerger& AliMUONMerger::operator=(const AliMUONMerger& rhs)
78{
79// Protected assignement operator
80
81 if (this == &rhs) return *this;
82
83 Fatal("operator=", "Not implemented.");
84
85 return *this;
86}
87
66f93042 88//------------------------------------------------------------------------
c7955c78 89Bool_t AliMUONMerger::Exists(const AliMUONPadHit *padhit) const
66f93042 90{
3ec837bb 91// test if the given padhit was already fired
66f93042 92 return (fHitMap[fNch]->TestHit(padhit->PadX(),padhit->PadY()));
93}
94
95//------------------------------------------------------------------------
8f36c696 96void AliMUONMerger::Update(AliMUONPadHit *padhit)
66f93042 97{
3ec837bb 98// add new contribution to the fired padhit
8f36c696 99 AliMUONTransientDigit *pdigit =
100 static_cast<AliMUONTransientDigit*>(
101 fHitMap[fNch]->GetHit(padhit->PadX(),padhit->PadY()));
66f93042 102
66f93042 103 // update charge
104 //
8f36c696 105 Int_t iqpad = padhit->QPad(); // charge per pad
106 pdigit->AddSignal(iqpad);
107 pdigit->AddPhysicsSignal(iqpad);
108
66f93042 109 // update list of tracks
110 //
3351e14b 111 Int_t track, charge;
8f36c696 112 if (fSignal) {
113 track = fTrack;
114 charge = iqpad;
66f93042 115 } else {
8f36c696 116 track = kBgTag;
117 charge = kBgTag;
66f93042 118 }
8f36c696 119 pdigit->UpdateTrackList(track,charge);
66f93042 120}
121
122//------------------------------------------------------------------------
8f36c696 123void AliMUONMerger::CreateNew(AliMUONPadHit *padhit)
66f93042 124{
3ec837bb 125// add new transient digit to the list, update hit map
66f93042 126 fList->AddAtAndExpand(
127 new AliMUONTransientDigit(fNch,fDigits),fCounter);
8f36c696 128 fHitMap[fNch]->SetHit(padhit->PadX(),padhit->PadY(),fCounter);
129 AliMUONTransientDigit* pdigit =
c7955c78 130 static_cast<AliMUONTransientDigit*>(fList->Last());
66f93042 131 // list of tracks
8f36c696 132 Int_t track, charge;
133 if (fSignal) {
134 track = fTrack;
135 charge = padhit->QPad();
136 } else {
137 track = kBgTag;
138 charge = kBgTag;
139 }
140 pdigit->AddToTrackList(track,charge);
141 fCounter++;
66f93042 142}
143
144
145//------------------------------------------------------------------------
146void AliMUONMerger::Init()
147{
148// Initialisation
77ccf5b0 149 // open only once the background file !!
150 if (fMerge && !fBgrFile) fBgrFile = InitBgr();
66f93042 151}
152
153
154
155//------------------------------------------------------------------------
156TFile* AliMUONMerger::InitBgr()
157{
158// Initialise background event
159 TFile *file = new TFile(fFnBgr);
160// add error checking later
161 printf("\n AliMUONMerger has opened %s file with background event \n", fFnBgr);
162 fHitsBgr = new TClonesArray("AliMUONHit",1000);
163 fPadHitsBgr = new TClonesArray("AliMUONPadHit",1000);
164 return file;
165}
166
167//------------------------------------------------------------------------
168void AliMUONMerger::Digitise()
169{
170
171 // keep galice.root for signal and name differently the file for
172 // background when add! otherwise the track info for signal will be lost !
ce3f5e87 173 // Obsolete sep 2003 Gines MARTINEZ
174 // AliMUONChamber* iChamber;
175// AliSegmentation* segmentation;
176
177// fList = new TObjArray;
178
179// AliMUON *pMUON = (AliMUON *) gAlice->GetModule("MUON");
180// fHitMap= new AliHitMap* [AliMUONConstants::NCh()];
181// if (fMerge ) {
182// fBgrFile->cd();
183// //
184// // Get Hits Tree header from file
185// //if(fHitsBgr) fHitsBgr->Clear(); // Useless because line 327
186// //if(fPadHitsBgr) fPadHitsBgr->Clear(); // Useless because line 328
187// if(fTrH1) delete fTrH1;
188// fTrH1 = 0;
66f93042 189
ce3f5e87 190// char treeName[20];
191// sprintf(treeName,"TreeH%d",fEvNrBgr);
192// fTrH1 = (TTree*)gDirectory->Get(treeName);
193// if (!fTrH1) {
194// printf("ERROR: cannot find Hits Tree for event:%d\n",fEvNrBgr);
195// }
196// //
197// // Set branch addresses
198// TBranch *branch;
199// char branchname[20];
200// sprintf(branchname,"%s",pMUON->GetName());
201// if (fTrH1 && fHitsBgr) {
202// branch = fTrH1->GetBranch(branchname);
203// if (branch) branch->SetAddress(&fHitsBgr);
204// }
205// if (fTrH1 && fPadHitsBgr) {
206// branch = fTrH1->GetBranch("MUONCluster");
207// if (branch) branch->SetAddress(&fPadHitsBgr);
208// }
209// }
210// //
211// // loop over cathodes
212// //
213// fSignal = kTRUE;
214// for (int icat = 0; icat < 2; icat++) {
215// fCounter = 0;
216// for (Int_t i = 0; i < AliMUONConstants::NCh(); i++) {
217// iChamber = &(pMUON->Chamber(i));
218// if (iChamber->Nsec() == 1 && icat == 1) {
219// continue;
220// } else {
221// segmentation = iChamber->SegmentationModel(icat+1);
222// }
223// fHitMap[i] = new AliMUONHitMapA1(segmentation, fList);
224// }
225
226// //
227// // Loop over tracks
228// //
229
230// /******************************************************************/
231// TTree* treeH = pMUON->TreeH();
232// if (treeH == 0x0)
233// {
234// cerr<<"AliMUONMerger::Exec: Can not get TreeH"<<endl;
235// return;
236// }
237// /******************************************************************/
88cb7938 238
239
240
ce3f5e87 241// Int_t ntracks = (Int_t) treeH->GetEntries();
242// treeH->SetBranchStatus("*",0); // switch off all branches
243// treeH->SetBranchStatus("MUON*",1); // switch on only MUON
244
245// for (fTrack = 0; fTrack < ntracks; fTrack++) {
246// gAlice->ResetHits();
247// treeH->GetEntry(fTrack,0);
248// //
249// // Loop over hits
250// for(AliMUONHit* mHit = (AliMUONHit*)pMUON->FirstHit(-1);
251// mHit;
252// mHit = (AliMUONHit*)pMUON->NextHit())
253// {
254// fNch = mHit->Chamber()-1; // chamber number
255// if (fNch > AliMUONConstants::NCh()-1) continue;
256// iChamber = &(pMUON->Chamber(fNch));
66f93042 257
ce3f5e87 258// //
259// // Loop over pad hits
260// for (AliMUONPadHit* mPad =
261// (AliMUONPadHit*)pMUON->FirstPad(mHit,pMUON->PadHits());
262// mPad;
263// mPad = (AliMUONPadHit*)pMUON->NextPad(pMUON->PadHits()))
264// {
265// Int_t cathode = mPad->Cathode(); // cathode number
266// if (cathode != (icat+1)) continue;
267// Int_t iqpad = Int_t(mPad->QPad()); // charge per pad
268// // segmentation = iChamber->SegmentationModel(cathode);
269// fDigits[0] = mPad->PadX();
270// fDigits[1] = mPad->PadY();
271// if (!(fHitMap[fNch]->ValidateHit(fDigits[0], fDigits[1]))) continue;
272// fDigits[2] = icat;
273// fDigits[3] = iqpad;
274// fDigits[4] = iqpad;
275// if (mHit->Particle() == kMuonPlus ||
276// mHit->Particle() == kMuonMinus) {
277// fDigits[5] = mPad->HitNumber();
278// } else fDigits[5] = -1;
279
280// // build the list of fired pads and update the info
281
282// if (!Exists(mPad)) {
283// CreateNew(mPad);
284// } else {
285// Update(mPad);
286// } // end if pdigit
287// } //end loop over clusters
288// } // hit loop
289// } // track loop
290
291// // open the file with background
66f93042 292
ce3f5e87 293// if (fMerge) {
294// fSignal = kFALSE;
295// ntracks = (Int_t)fTrH1->GetEntries();
296// //
297// // Loop over tracks
298// //
299// for (fTrack = 0; fTrack < ntracks; fTrack++) {
300
301// if (fHitsBgr) fHitsBgr->Clear();
302// if (fPadHitsBgr) fPadHitsBgr->Clear();
303
304// fTrH1->GetEvent(fTrack);
305// //
306// // Loop over hits
307// AliMUONHit* mHit;
308// for(Int_t i = 0; i < fHitsBgr->GetEntriesFast(); ++i)
309// {
310// mHit = (AliMUONHit*) (*fHitsBgr)[i];
311// fNch = mHit->Chamber()-1; // chamber number
312// iChamber = &(pMUON->Chamber(fNch));
313// //
314// // Loop over pad hits
315// for (AliMUONPadHit* mPad =
316// (AliMUONPadHit*)pMUON->FirstPad(mHit,fPadHitsBgr);
317// mPad;
318// mPad = (AliMUONPadHit*)pMUON->NextPad(fPadHitsBgr))
319// {
320// Int_t cathode = mPad->Cathode(); // cathode number
321// Int_t ipx = mPad->PadX(); // pad number on X
322// Int_t ipy = mPad->PadY(); // pad number on Y
323// Int_t iqpad = Int_t(mPad->QPad()); // charge per pad
324// if (!(fHitMap[fNch]->ValidateHit(ipx, ipy))) continue;
325
326// if (cathode != (icat+1)) continue;
327// fDigits[0] = ipx;
328// fDigits[1] = ipy;
329// fDigits[2] = icat;
330// fDigits[3] = iqpad;
331// fDigits[4] = 0;
332// fDigits[5] = -1;
66f93042 333
ce3f5e87 334// // build the list of fired pads and update the info
335// if (!Exists(mPad)) {
336// CreateNew(mPad);
337// } else {
338// Update(mPad);
339// } // end if !Exists
340// } //end loop over clusters
341// } // hit loop
342// } // track loop
343
344// TTree *treeK = gAlice->TreeK();
345// TFile *file = NULL;
66f93042 346
ce3f5e87 347// if (treeK) file = treeK->GetCurrentFile();
348// file->cd();
349// } // if fMerge
66f93042 350
ce3f5e87 351// Int_t tracks[kMAXTRACKS];
352// Int_t charges[kMAXTRACKS];
353// Int_t nentries = fList->GetEntriesFast();
66f93042 354
ce3f5e87 355// for (Int_t nent = 0; nent < nentries; nent++) {
356// AliMUONTransientDigit *address = (AliMUONTransientDigit*)fList->At(nent);
357// if (address == 0) continue;
358// Int_t ich = address->Chamber();
359// Int_t q = address->Signal();
360// iChamber = &(pMUON->Chamber(ich));
361// //
362// // Digit Response (noise, threshold, saturation, ...)
363// AliMUONResponse * response = iChamber->ResponseModel();
364// q = response->DigitResponse(q,address);
66f93042 365
ce3f5e87 366// if (!q) continue;
66f93042 367
ce3f5e87 368// fDigits[0] = address->PadX();
369// fDigits[1] = address->PadY();
370// fDigits[2] = address->Cathode();
371// fDigits[3] = q;
372// fDigits[4] = address->Physics();
373// fDigits[5] = address->Hit();
66f93042 374
ce3f5e87 375// Int_t nptracks = address->GetNTracks();
376
377// if (nptracks > kMAXTRACKS) {
378// if (fDebug>0)
379// printf("\n Attention - nptracks > kMAXTRACKS %d \n", nptracks);
380// nptracks = kMAXTRACKS;
381// }
382// if (nptracks > 2) {
383// if (fDebug>0) {
384// printf("Attention - nptracks > 2 %d \n",nptracks);
385// printf("cat,ich,ix,iy,q %d %d %d %d %d \n",icat,ich,fDigits[0],fDigits[1],q);
386// }
387// }
388// for (Int_t tr = 0; tr < nptracks; tr++) {
389// tracks[tr] = address->GetTrack(tr);
390// charges[tr] = address->GetCharge(tr);
391// } //end loop over list of tracks for one pad
392// // Sort list of tracks according to charge
393// if (nptracks > 1) {
394// SortTracks(tracks,charges,nptracks);
395// }
396// if (nptracks < kMAXTRACKS ) {
397// for (Int_t i = nptracks; i < kMAXTRACKS; i++) {
398// tracks[i] = 0;
399// charges[i] = 0;
400// }
401// }
66f93042 402
ce3f5e87 403// // fill digits
404// pMUON->AddDigits(ich,tracks,charges,fDigits);
405// }
406// gAlice->TreeD()->Fill();
407// pMUON->ResetDigits();
408// fList->Delete();
66f93042 409
410
ce3f5e87 411// for(Int_t ii = 0; ii < AliMUONConstants::NCh(); ++ii) {
412// if (fHitMap[ii]) {
413// delete fHitMap[ii];
414// fHitMap[ii] = 0;
415// }
416// }
417// } //end loop over cathodes
418// delete [] fHitMap;
419// delete fList;
66f93042 420
77ccf5b0 421// no need to delete ... and it makes a crash also
422// if (fHitsBgr) fHitsBgr->Delete();
423// if (fPadHitsBgr) fPadHitsBgr->Delete();
66f93042 424 // gObjectTable->Print();
425}
426
427
428
30178c30 429void AliMUONMerger::SortTracks(Int_t *tracks,Int_t *charges,Int_t ntr) const
a3f472a9 430{
431 //
432 // Sort the list of tracks contributing to a given digit
433 // Only the 3 most significant tracks are acctually sorted
434 //
435
436 //
437 // Loop over signals, only 3 times
438 //
439
440 Int_t qmax;
441 Int_t jmax;
442 Int_t idx[3] = {-2,-2,-2};
443 Int_t jch[3] = {-2,-2,-2};
444 Int_t jtr[3] = {-2,-2,-2};
445 Int_t i,j,imax;
446
447 if (ntr<3) imax=ntr;
448 else imax=3;
449 for(i=0;i<imax;i++){
450 qmax=0;
451 jmax=0;
452
453 for(j=0;j<ntr;j++){
454
455 if((i == 1 && j == idx[i-1])
456 ||(i == 2 && (j == idx[i-1] || j == idx[i-2]))) continue;
457
458 if(charges[j] > qmax) {
459 qmax = charges[j];
460 jmax=j;
461 }
462 }
463
464 if(qmax > 0) {
465 idx[i]=jmax;
466 jch[i]=charges[jmax];
467 jtr[i]=tracks[jmax];
468 }
469
470 }
471
472 for(i=0;i<3;i++){
473 if (jtr[i] == -2) {
474 charges[i]=0;
475 tracks[i]=0;
476 } else {
477 charges[i]=jch[i];
478 tracks[i]=jtr[i];
479 }
480 }
481}
482
66f93042 483
484