1 //-----------------------------------------------------//
3 // Source File : PMDDigitization.cxx, Version 00 //
5 // Date : September 20 2002 //
7 //-----------------------------------------------------//
12 #include <TGeometry.h>
13 #include <TObjArray.h>
14 #include <TClonesArray.h>
17 #include <TParticle.h>
22 #include "AliDetector.h"
23 #include "AliRunLoader.h"
24 #include "AliLoader.h"
25 #include "AliConfig.h"
27 #include "AliRunDigitizer.h"
28 #include "AliHeader.h"
30 #include "AliPMDcell.h"
31 #include "AliPMDsdigit.h"
32 #include "AliPMDdigit.h"
33 #include "AliPMDDigitizer.h"
34 #include "AliPMDClustering.h"
35 #include "AliPMDContainer.h"
36 #include "AliPMDrecpoint.h"
39 ClassImp(AliPMDDigitizer)
43 AliPMDDigitizer::AliPMDDigitizer()
45 if (!fSDigits) fSDigits = new TClonesArray("AliPMDsdigit", 1000);
47 if (!fDigits) fDigits = new TClonesArray("AliPMDdigit", 1000);
50 for (Int_t i = 0; i < fTotSM; i++)
52 for (Int_t j = 0; j < fNCell; j++)
54 for (Int_t k = 0; k < fNCell; k++)
62 if (!fCell) fCell = new TObjArray();
64 fZPos = 361.5; // in units of cm, This is the default position of PMD
67 AliPMDDigitizer::~AliPMDDigitizer()
76 void AliPMDDigitizer::OpengAliceFile(Char_t *file, Option_t *option)
79 fRunLoader = AliRunLoader::Open(file,AliConfig::fgkDefaultEventFolderName,
84 Error("Open","Can not open session for file %s.",file);
87 fRunLoader->LoadgAlice();
88 fRunLoader->LoadHeader();
89 fRunLoader->LoadKinematics();
91 gAlice = fRunLoader->GetAliRun();
95 printf("<AliPMDdigitizer::Open> ");
96 printf("AliRun object found on file.\n");
100 printf("<AliPMDdigitizer::Open> ");
101 printf("Could not find AliRun object.\n");
104 PMD = (AliPMD*)gAlice->GetDetector("PMD");
105 pmdloader = fRunLoader->GetLoader("PMDLoader");
106 if (pmdloader == 0x0)
108 cerr<<"Hits2Digits : Can not find PMD or PMDLoader\n";
111 const char *cHS = strstr(option,"HS");
112 const char *cHD = strstr(option,"HD");
113 const char *cSD = strstr(option,"SD");
117 pmdloader->LoadHits("READ");
118 pmdloader->LoadSDigits("recreate");
122 pmdloader->LoadHits("READ");
123 pmdloader->LoadDigits("recreate");
127 pmdloader->LoadSDigits("READ");
128 pmdloader->LoadDigits("recreate");
132 void AliPMDDigitizer::Hits2SDigits(Int_t ievt)
134 cout << " -------- Beginning of Hits2SDigits ----------- " << endl;
147 Float_t xPos, yPos, zPos;
150 Float_t vx = -999.0, vy = -999.0, vz = -999.0;
155 printf("Event Number = %d \n",ievt);
156 Int_t nparticles = fRunLoader->GetHeader()->GetNtrack();
157 printf("Number of Particles = %d \n", nparticles);
158 fRunLoader->GetEvent(ievt);
159 Particles = gAlice->Particles();
160 // ------------------------------------------------------- //
161 // Pointer to specific detector hits.
162 // Get pointers to Alice detectors and Hits containers
164 treeH = pmdloader->TreeH();
166 Int_t ntracks = (Int_t) treeH->GetEntries();
167 printf("Number of Tracks in the TreeH = %d \n", ntracks);
169 treeS = pmdloader->TreeS();
172 pmdloader->MakeTree("S");
173 treeS = pmdloader->TreeS();
175 Int_t bufsize = 16000;
176 treeS->Branch("PMDSDigit", &fSDigits, bufsize);
178 if (PMD) PMDhits = PMD->Hits();
180 // Start loop on tracks in the hits containers
183 for (Int_t track=0; track<ntracks;track++)
186 treeH->GetEvent(track);
190 npmd = PMDhits->GetEntriesFast();
191 for (int ipmd = 0; ipmd < npmd; ipmd++)
193 pmdHit = (AliPMDhit*) PMDhits->UncheckedAt(ipmd);
194 trackno = pmdHit->GetTrack();
196 // get kinematics of the particles
198 particle = gAlice->Particle(trackno);
199 trackpid = particle->GetPdgCode();
207 TParticle* mparticle = particle;
209 while((imo = mparticle->GetFirstMother()) >= 0)
212 mparticle = gAlice->Particle(imo);
213 id_mo = mparticle->GetPdgCode();
215 vx = mparticle->Vx();
216 vy = mparticle->Vy();
217 vz = mparticle->Vz();
219 //printf("==> Mother ID %5d %5d %5d Vertex: %13.3f %13.3f %13.3f\n", igen, imo, id_mo, vx, vy, vz);
220 //fprintf(ftest1,"==> Mother ID %5d %5d %5d Vertex: %13.3f %13.3f %13.3f\n", igen, imo, id_mo, vx, vy, vz);
222 if (id_mo == kGamma && vx == 0. && vy == 0. && vz == 0.)
229 if (id_mo == kPi0 && vx == 0. && vy == 0. && vz == 0.)
243 cellnumber = pmdHit->fVolume[1];
244 smnumber1 = pmdHit->fVolume[4];
245 edep = pmdHit->fEnergy;
247 if (smnumber1 > 3 && smnumber1 <= 6)
249 Int_t ny = (cellnumber-1)/48 + 1;
250 Int_t nx = cellnumber - (ny-1)*48;
253 Int_t ncell1 = (ny1 - 1)* 72 + nx1;
256 smnumber = Convert2RealSMNumber(smnumber1);
257 ypad = (cellnumber - 1)/fNCell + 1;
258 xpad = cellnumber - (ypad-1)*fNCell;
260 //cout << "-zpos = " << -zPos << endl;
267 else if (-zPos > fZPos)
275 fPMD[smnumber-1][xpad-1][ypad-1] += edep;
276 fPMDCounter[smnumber-1][xpad-1][ypad-1]++;
277 Int_t smn = smnumber - 1;
278 Int_t ixx = xpad - 1;
279 Int_t iyy = ypad - 1;
281 pmdcell = new AliPMDcell(mtrackno,smn,ixx,iyy,edep);
287 fCPV[smnumber-1][xpad-1][ypad-1] += edep;
288 fCPVTrackNo[smnumber-1][xpad-1][ypad-1] = mtrackno;
292 } // Track Loop ended
295 TrackAssignment2Cell();
301 Int_t count_digit = 0;
305 for (Int_t idet = 0; idet < 2; idet++)
307 for (Int_t ism = 0; ism < fTotSM; ism++)
309 for (Int_t jrow = 0; jrow < fNCell; jrow++)
311 for (Int_t kcol = 0; kcol < fNCell; kcol++)
313 cellno = jrow + kcol*fNCell;
316 deltaE = fPMD[ism][jrow][kcol];
317 trno = fPMDTrackNo[ism][jrow][kcol];
322 deltaE = fCPV[ism][jrow][kcol];
323 trno = fCPVTrackNo[ism][jrow][kcol];
329 AddSDigit(trno,detno,ism,cellno,deltaE);
337 pmdloader->WriteSDigits("OVERWRITE");
341 // cout << " -------- End of Hits2SDigit ----------- " << endl;
344 void AliPMDDigitizer::Hits2Digits(Int_t ievt)
357 Float_t xPos, yPos, zPos;
360 Float_t vx = -999.0, vy = -999.0, vz = -999.0;
365 printf("Event Number = %d \n",ievt);
367 Int_t nparticles = fRunLoader->GetHeader()->GetNtrack();
368 printf("Number of Particles = %d \n", nparticles);
369 fRunLoader->GetEvent(ievt);
370 Particles = gAlice->Particles();
371 // ------------------------------------------------------- //
372 // Pointer to specific detector hits.
373 // Get pointers to Alice detectors and Hits containers
375 PMD = (AliPMD*)gAlice->GetDetector("PMD");
376 pmdloader = fRunLoader->GetLoader("PMDLoader");
378 if (pmdloader == 0x0)
380 cerr<<"Hits2Digits method : Can not find PMD or PMDLoader\n";
382 treeH = pmdloader->TreeH();
383 Int_t ntracks = (Int_t) treeH->GetEntries();
384 printf("Number of Tracks in the TreeH = %d \n", ntracks);
385 pmdloader->LoadDigits("recreate");
386 treeD = pmdloader->TreeD();
389 pmdloader->MakeTree("D");
390 treeD = pmdloader->TreeD();
392 Int_t bufsize = 16000;
393 treeD->Branch("PMDDigit", &fDigits, bufsize);
395 if (PMD) PMDhits = PMD->Hits();
397 // Start loop on tracks in the hits containers
399 for (Int_t track=0; track<ntracks;track++)
402 treeH->GetEvent(track);
406 npmd = PMDhits->GetEntriesFast();
407 for (int ipmd = 0; ipmd < npmd; ipmd++)
409 pmdHit = (AliPMDhit*) PMDhits->UncheckedAt(ipmd);
410 trackno = pmdHit->GetTrack();
412 // get kinematics of the particles
414 particle = gAlice->Particle(trackno);
415 trackpid = particle->GetPdgCode();
423 TParticle* mparticle = particle;
425 while((imo = mparticle->GetFirstMother()) >= 0)
428 mparticle = gAlice->Particle(imo);
429 id_mo = mparticle->GetPdgCode();
431 vx = mparticle->Vx();
432 vy = mparticle->Vy();
433 vz = mparticle->Vz();
435 //printf("==> Mother ID %5d %5d %5d Vertex: %13.3f %13.3f %13.3f\n", igen, imo, id_mo, vx, vy, vz);
436 //fprintf(ftest1,"==> Mother ID %5d %5d %5d Vertex: %13.3f %13.3f %13.3f\n", igen, imo, id_mo, vx, vy, vz);
438 if (id_mo == kGamma && vx == 0. && vy == 0. && vz == 0.)
445 if (id_mo == kPi0 && vx == 0. && vy == 0. && vz == 0.)
459 cellnumber = pmdHit->fVolume[1];
460 smnumber1 = pmdHit->fVolume[4];
461 edep = pmdHit->fEnergy;
463 if (smnumber1 > 3 && smnumber1 <= 6)
465 Int_t ny = (cellnumber-1)/48 + 1;
466 Int_t nx = cellnumber - (ny-1)*48;
469 Int_t ncell1 = (ny1 - 1)* 72 + nx1;
473 smnumber = Convert2RealSMNumber(smnumber1);
474 ypad = (cellnumber - 1)/fNCell + 1;
475 xpad = cellnumber - (ypad-1)*fNCell;
477 //cout << "-zpos = " << -zPos << endl;
483 else if (-zPos > fZPos)
491 fCPV[smnumber-1][xpad-1][ypad-1] += edep;
493 else if (fDetNo == 0)
495 fPMD[smnumber-1][xpad-1][ypad-1] += edep;
496 fPMDCounter[smnumber-1][xpad-1][ypad-1]++;
500 } // Track Loop ended
502 TrackAssignment2Cell();
507 Int_t count_digit = 0;
511 for (Int_t idet = 0; idet < 2; idet++)
513 for (Int_t ism = 0; ism < fTotSM; ism++)
515 for (Int_t jrow = 0; jrow < fNCell; jrow++)
517 for (Int_t kcol = 0; kcol < fNCell; kcol++)
519 cellno = jrow + kcol*fNCell;
522 deltaE = fPMD[ism][jrow][kcol];
527 deltaE = fCPV[ism][jrow][kcol];
533 AddDigit(trno,detno,ism,cellno,deltaE);
537 } // supermodule loop
542 pmdloader->WriteDigits("OVERWRITE");
546 // cout << " -------- End of Hits2Digit ----------- " << endl;
550 void AliPMDDigitizer::SDigits2Digits(Int_t ievt)
552 // cout << " -------- Beginning of SDigits2Digit ----------- " << endl;
553 fRunLoader->GetEvent(ievt);
555 treeS = pmdloader->TreeS();
556 AliPMDsdigit *pmdsdigit;
557 TBranch *branch = treeS->GetBranch("PMDSDigit");
558 branch->SetAddress(&fSDigits);
560 treeD = pmdloader->TreeD();
563 pmdloader->MakeTree("D");
564 treeD = pmdloader->TreeD();
566 Int_t bufsize = 16000;
567 treeD->Branch("PMDDigit", &fDigits, bufsize);
569 Int_t trno, det, smn;
573 Int_t nmodules = (Int_t) treeS->GetEntries();
575 for (Int_t imodule = 0; imodule < nmodules; imodule++)
577 treeS->GetEntry(imodule);
578 Int_t nentries = fSDigits->GetLast();
579 //cout << " nentries = " << nentries << endl;
580 for (Int_t ient = 0; ient < nentries+1; ient++)
582 pmdsdigit = (AliPMDsdigit*)fSDigits->UncheckedAt(ient);
583 trno = pmdsdigit->GetTrackNumber();
584 det = pmdsdigit->GetDetector();
585 smn = pmdsdigit->GetSMNumber();
586 cellno = pmdsdigit->GetCellNumber();
587 edep = pmdsdigit->GetCellEdep();
591 AddDigit(trno,det,smn,cellno,adc);
596 pmdloader->WriteDigits("OVERWRITE");
597 // cout << " -------- End of SDigits2Digit ----------- " << endl;
600 void AliPMDDigitizer::TrackAssignment2Cell()
602 // To be checked again
604 // This blocks assign the cell id when there is
605 // multiple tracks in a cell according to the
617 PMDTrack = new Int_t ***[27];
618 PMDEdep = new Float_t ***[27];
619 for (i=0; i<fTotSM; i++)
621 PMDTrack[i] = new Int_t **[72];
622 PMDEdep[i] = new Float_t **[72];
625 for (i = 0; i < fTotSM; i++)
627 for (j = 0; j < fNCell; j++)
629 PMDTrack[i][j] = new Int_t *[72];
630 PMDEdep[i][j] = new Float_t *[72];
634 for (i = 0; i < fTotSM; i++)
636 for (j = 0; j < fNCell; j++)
638 for (k = 0; k < fNCell; k++)
640 Int_t nn = fPMDCounter[i][j][k];
643 PMDTrack[i][j][k] = new Int_t[nn];
644 PMDEdep[i][j][k] = new Float_t[nn];
649 PMDTrack[i][j][k] = new Int_t[nn];
650 PMDEdep[i][j][k] = new Float_t[nn];
652 fPMDCounter[i][j][k] = 0;
658 Int_t nentries = fCell->GetEntries();
660 Int_t mtrackno, ism, ixp, iyp;
663 for (i = 0; i < nentries; i++)
665 pmdcell = (AliPMDcell*)fCell->UncheckedAt(i);
667 mtrackno = pmdcell->GetTrackNumber();
668 ism = pmdcell->GetSMNumber();
669 ixp = pmdcell->GetX();
670 iyp = pmdcell->GetY();
671 edep = pmdcell->GetEdep();
673 Int_t nn = fPMDCounter[ism][ixp][iyp];
675 // cout << " nn = " << nn << endl;
677 PMDTrack[ism][ixp][iyp][nn] = (Int_t) mtrackno;
678 PMDEdep[ism][ixp][iyp][nn] = edep;
679 fPMDCounter[ism][ixp][iyp]++;
686 for (im=0; im<27; im++)
688 for (ix=0; ix<72; ix++)
690 for (iy=0; iy<72; iy++)
692 nn = fPMDCounter[im][ix][iy];
695 // This block handles if a cell is fired
696 // many times by many tracks
698 status = new Int_t[nn];
699 for (iz = 0; iz < nn; iz++)
701 status[iz] = PMDTrack[im][ix][iy][iz];
703 sort(status,status+nn);
704 Int_t track_old = -99999;
705 Int_t track, tr_count = 0;
706 for (iz = 0; iz < nn; iz++)
709 if (track_old != track)
712 vjunkTRN.push_back(track);
717 Float_t tot_edp = 0.;
718 tr_edp = new Float_t[tr_count];
719 frac_edp = new Float_t[tr_count];
720 for (il = 0; il < tr_count; il++)
723 track = vjunkTRN[il];
724 for (iz = 0; iz < nn; iz++)
726 if (track == PMDTrack[im][ix][iy][iz])
728 tr_edp[il] += PMDEdep[im][ix][iy][iz];
731 tot_edp += tr_edp[il];
735 Float_t frac_old = 0.;
737 for (il = 0; il < tr_count; il++)
739 frac_edp[il] = tr_edp[il]/tot_edp;
740 if (frac_old < frac_edp[il])
742 frac_old = frac_edp[il];
749 fPMDTrackNo[im][ix][iy] = vjunkTRN[il_old];
753 // This only handles if a cell is fired
756 fPMDTrackNo[im][ix][iy] = PMDTrack[im][ix][iy][0];
761 // This is if no cell is fired
762 fPMDTrackNo[im][ix][iy] = -999;
768 // Delete all the pointers
770 for (i = 0; i < fTotSM; i++)
772 for (j = 0; j < fNCell; j++)
774 for (k = 0; k < fNCell; k++)
776 delete [] PMDTrack[i][j][k];
777 delete [] PMDEdep[i][j][k];
782 for (i = 0; i < fTotSM; i++)
784 for (j = 0; j < fNCell; j++)
786 delete [] PMDTrack[i][j];
787 delete [] PMDEdep[i][j];
791 for (i = 0; i < fTotSM; i++)
793 delete [] PMDTrack[i];
794 delete [] PMDEdep[i];
799 // End of the cell id assignment
804 void AliPMDDigitizer::MeV2ADC(Float_t mev, Float_t & adc)
810 void AliPMDDigitizer::AddSDigit(Int_t trnumber, Int_t det, Int_t smnumber,
811 Int_t cellnumber, Float_t adc)
813 TClonesArray &lsdigits = *fSDigits;
814 AliPMDsdigit *newcell;
815 newcell = new AliPMDsdigit(trnumber,det,smnumber,cellnumber,adc);
816 new(lsdigits[fNsdigit++]) AliPMDsdigit(newcell);
820 void AliPMDDigitizer::AddDigit(Int_t trnumber, Int_t det, Int_t smnumber,
821 Int_t cellnumber, Float_t adc)
823 TClonesArray &ldigits = *fDigits;
824 AliPMDdigit *newcell;
825 newcell = new AliPMDdigit(trnumber,det,smnumber,cellnumber,adc);
826 new(ldigits[fNdigit++]) AliPMDdigit(newcell);
830 Int_t AliPMDDigitizer::Convert2RealSMNumber(Int_t smnumber1)
832 Int_t smnumber = -999;
834 if (smnumber1==1) smnumber = 1;
835 if (smnumber1==2) smnumber = 10;
836 if (smnumber1==3) smnumber = 19;
837 if (smnumber1==4) smnumber = 1;
838 if (smnumber1==5) smnumber = 10;
839 if (smnumber1==6) smnumber = 19;
840 if (smnumber1==7) smnumber = 2;
841 if (smnumber1==8) smnumber = 3;
842 if (smnumber1==9) smnumber = 4;
843 if (smnumber1==10) smnumber = 5;
844 if (smnumber1==11) smnumber = 6;
845 if (smnumber1==12) smnumber = 7;
846 if (smnumber1==13) smnumber = 8;
847 if (smnumber1==14) smnumber = 9;
848 if (smnumber1==15) smnumber = 11;
849 if (smnumber1==16) smnumber = 12;
850 if (smnumber1==17) smnumber = 13;
851 if (smnumber1==18) smnumber = 14;
852 if (smnumber1==19) smnumber = 15;
853 if (smnumber1==20) smnumber = 16;
854 if (smnumber1==21) smnumber = 17;
855 if (smnumber1==22) smnumber = 18;
856 if (smnumber1==23) smnumber = 20;
857 if (smnumber1==24) smnumber = 21;
858 if (smnumber1==25) smnumber = 22;
859 if (smnumber1==26) smnumber = 23;
860 if (smnumber1==27) smnumber = 24;
861 if (smnumber1==28) smnumber = 25;
862 if (smnumber1==29) smnumber = 26;
863 if (smnumber1==30) smnumber = 27;
867 void AliPMDDigitizer::SetZPosition(Float_t zpos)
871 Float_t AliPMDDigitizer::GetZPosition() const
876 void AliPMDDigitizer::ResetCell()
879 for (Int_t i = 0; i < fTotSM; i++)
881 for (Int_t j = 0; j < fNCell; j++)
883 for (Int_t k = 0; k < fNCell; k++)
885 fPMDCounter[i][j][k] = 0;
890 void AliPMDDigitizer::ResetSDigit()
893 if (fSDigits) fSDigits->Clear();
895 void AliPMDDigitizer::ResetDigit()
898 if (fDigits) fDigits->Clear();
901 void AliPMDDigitizer::ResetCellADC()
903 for (Int_t i = 0; i < fTotSM; i++)
905 for (Int_t j = 0; j < fNCell; j++)
907 for (Int_t k = 0; k < fNCell; k++)
916 void AliPMDDigitizer::UnLoad(Option_t *option)
918 const char *cS = strstr(option,"S");
919 const char *cD = strstr(option,"D");
921 fRunLoader->UnloadgAlice();
922 fRunLoader->UnloadHeader();
923 fRunLoader->UnloadKinematics();
927 pmdloader->UnloadHits();
931 pmdloader->UnloadHits();
932 pmdloader->UnloadSDigits();