[u/mrichter/AliRoot.git] / TRD / AliTRDgtuSim.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id: AliTRDgtuSim.cxx 28397 2008-09-02 09:33:00Z cblume $ */

////////////////////////////////////////////////////////////////////////////
//                                                                        //
//  GTU simulation                                                        //
//                                                                        //
//  Authors: J. Klein (Jochen.Klein@cern.ch)                              //
//                                                                        //
////////////////////////////////////////////////////////////////////////////

#include <stdio.h>
#include <fstream>
#include <string>

#include "TFile.h"
#include "TROOT.h"
#include "TClonesArray.h"

#include "AliRun.h"
#include "AliRunLoader.h"
#include "AliLoader.h"
#include "AliTreeLoader.h"
#include "AliLog.h"
#include "AliESDTrdTrack.h"

#include "AliTRDgtuSim.h"
#include "AliTRDgtuTMU.h"
#include "AliTRDtrackGTU.h"
#include "AliTRDtrackletWord.h"
#include "AliTRDtrackletMCM.h"
#include "AliESDEvent.h"

ClassImp(AliTRDgtuSim)

AliTRDgtuSim::AliTRDgtuSim(AliRunLoader *rl) 
  : TObject(),
  fRunLoader(rl),
  fTMU(0x0),
  fTrackletArray(0x0),
  fTrackTree(0x0),
  fTrackletTree(0x0)
{
  fTrackletTree = new TTree("gtutracklets", "Tree with GTU tracklets");
  fTrackletTree->SetDirectory(0);
}

AliTRDgtuSim::~AliTRDgtuSim() 
{
  // destructor

  if (fTrackletArray)
    fTrackletArray->Delete();
  delete fTrackletArray;
  delete fTrackletTree;
}

Bool_t AliTRDgtuSim::RunGTUFromTrackletFile(TString filename, Int_t event, Int_t noev) 
{
  // run the GTU from a file of tracklets 
  // used for comparison to VHDL simulation

    AliInfo(Form("Running the GTU simulation on file: %s", filename.Data()));
    ifstream input(filename.Data());
    
    std::string str;
    TString string;
    int lineno = 0;
    
    Int_t iEventPrev = -1;
    Int_t iStackPrev = -1;
    Int_t iSecPrev = -1;
    Int_t iSec = -1;
    Int_t iStack = -1;
    Int_t iLink = -1;
    Int_t iEvent = -1;
    Int_t evcnt = -1;
    
    fTMU = 0x0;
    
    AliDebug(5,"--------- Reading from file ----------");
    while (getline(input, str)) {
	lineno++;
	string = str;
	AliDebug(5,Form("Line %i : %s", lineno, string.Data()));
	
	TObjArray *tokens = string.Tokenize(" ");
	if (tokens->GetEntriesFast() < 7) {
	    AliWarning(Form("Invalid input in line %i, too few parameters", lineno));
	    continue;
	}

	if ( ((TObjString*) tokens->At(0))->GetString().Atoi() < event) 
	    continue;

	iEvent = ((TObjString*) tokens->At(0))->GetString().Atoi();
	iSec = ((TObjString*) tokens->At(1))->GetString().Atoi();
	iStack = ((TObjString*) tokens->At(2))->GetString().Atoi();
	iLink = 2 * ((TObjString*) tokens->At(3))->GetString().Atoi() + ((TObjString*) tokens->At(4))->GetString().Atoi();

	if (iEvent != iEventPrev || iStack != iStackPrev || iSec != iSecPrev) {
	    if(fTMU) {
		TList *listOfTracks = new TList();
		fTMU->SetStack(iStackPrev);
		fTMU->SetSector(iSecPrev);
		fTMU->RunTMU(listOfTracks);
		AliDebug(1,Form("--- There are %i tracks. Writing ...", listOfTracks->GetEntries()));
		WriteTracksToTree(listOfTracks);
		fTMU->WriteTrackletsToTree(fTrackletTree);
		WriteTracksToDataFile(listOfTracks, iEventPrev);
		if (listOfTracks->GetEntries() > 0) 
		    AliDebug(2,Form("   %4.1f GeV/c", ((AliTRDtrackGTU*) listOfTracks->At(0))->GetPt() ));
		delete fTMU;
		fTMU = new AliTRDgtuTMU(); 
		delete listOfTracks;
		listOfTracks = 0x0;
	    } else {
		fTMU = new AliTRDgtuTMU();
	    }
	    iStackPrev = iStack;
	    iSecPrev = iSec;
	    iEventPrev = iEvent;
	    evcnt++;
	    if (evcnt == noev)
		break;
	}
	for (Int_t i = 5; i < tokens->GetEntriesFast(); i++) {
	    UInt_t trackletWord = 0;
	    sscanf(((TObjString*) tokens->At(i))->GetString().Data(), "%x", &trackletWord);
	    if (trackletWord == 0x10001000) 
		break;
	    AliDebug(2,Form("%i. tracklet: %s -> 0x%08x", i-4, ((TObjString*) tokens->At(i))->GetString().Data(), trackletWord));
	    AliTRDtrackletWord *trkl = new AliTRDtrackletWord(trackletWord);
	    fTMU->AddTracklet(trkl, iLink);
	}
    }
    
    if (fTMU && evcnt < noev) {
	TList *listOfTracks = new TList();
	fTMU->SetStack(iStackPrev);
	fTMU->SetSector(iSecPrev);
	fTMU->RunTMU(listOfTracks);
	WriteTracksToTree(listOfTracks);
	fTMU->WriteTrackletsToTree(fTrackletTree);
	WriteTracksToDataFile(listOfTracks, iEventPrev);
	delete fTMU;
	delete listOfTracks;
	fTMU = 0x0;
    }

    AliInfo(Form("Analyzed %i events", evcnt));
    return kTRUE; 
}

Bool_t AliTRDgtuSim::RunGTU(AliLoader *loader, AliESDEvent *esd) 
{
  // run the GTU on tracklets taken from the loader
  // if specified the GTU tracks are written to the ESD event 

    if (!LoadTracklets(loader)) {
	AliError("Could not load the tracklets. Nothing done ...");
	return kFALSE;
    }

    AliDebug(1, Form("running on %i tracklets", fTrackletArray->GetEntriesFast()));

    Int_t iStackPrev = -1;
    Int_t iSecPrev = -1;
    Int_t iSec = -1;
    Int_t iStack = -1;
    Int_t iLink = -1;

    if (fTMU) {
	delete fTMU;
	fTMU = 0x0;
    }
    
    TList *listOfTracks = new TList();
    
    TIter next(fTrackletArray);
    AliTRDtrackletBase *trkl;

    while ((trkl = (AliTRDtrackletBase*) next())) {
	iSec = trkl->GetDetector() / 30;
	iStack = (trkl->GetDetector() % 30) / 6;
	iLink = 2 * (trkl->GetDetector() % 6) + (trkl->GetYbin() < 0 ? 0 : 1);

	if (iStack != iStackPrev || iSec != iSecPrev) {
	    if(fTMU) {
		fTMU->SetStack(iStackPrev);
		fTMU->SetSector(iSecPrev);
		fTMU->RunTMU(listOfTracks);
		WriteTracksToTree(listOfTracks);
		fTMU->WriteTrackletsToTree(fTrackletTree);
		WriteTracksToESD(listOfTracks, esd);
		fTMU->Reset();
		listOfTracks->Delete();
	    } else {
		fTMU = new AliTRDgtuTMU();
	    }
	    iStackPrev = iStack;
	    iSecPrev = iSec;
	}
	AliDebug(1, Form("adding tracklet: 0x%08x", trkl->GetTrackletWord()));
	fTMU->AddTracklet(trkl, iLink);
    }
    
    if (fTMU) {
	fTMU->SetStack(iStackPrev);
	fTMU->SetSector(iSecPrev);
	fTMU->RunTMU(listOfTracks);
	WriteTracksToTree(listOfTracks);
	fTMU->WriteTrackletsToTree(fTrackletTree);
	WriteTracksToESD(listOfTracks, esd);
	delete fTMU;
	fTMU = 0x0;
	listOfTracks->Delete();
    }

    delete listOfTracks;

    return kTRUE;
}

Bool_t AliTRDgtuSim::LoadTracklets(AliLoader *const loader) 
{
  // load the tracklets using the given loader

  AliDebug(1,"Loading tracklets ...");

  if (!loader) {
    AliError("No loader given!");
    return kFALSE;
  }

  AliDataLoader *trackletLoader = loader->GetDataLoader("tracklets");
  if (!trackletLoader) {
      AliError("No tracklet loader found!");
      return kFALSE;
  }

  trackletLoader->Load();
  TTree *trackletTree = 0x0;

  // simulated tracklets
  trackletTree = trackletLoader->Tree();
  if (trackletTree) {
    TBranch *trklbranch = trackletTree->GetBranch("mcmtrklbranch");
    if (trklbranch) {
      if (!fTrackletArray)
	fTrackletArray = new TClonesArray("AliTRDtrackletMCM", 1000);
      else if ((TClass::GetClass("AliTRDtrackletMCM"))->InheritsFrom(fTrackletArray->Class()))
	fTrackletArray->Delete();
      else {
	fTrackletArray->Delete();
	delete fTrackletArray;
	fTrackletArray = new TClonesArray("AliTRDtrackletMCM", 1000);
      }

      AliTRDtrackletMCM *trkl = new AliTRDtrackletMCM; 
      trklbranch->SetAddress(&trkl);
      for (Int_t iTracklet = 0; iTracklet < trklbranch->GetEntries(); iTracklet++) {
	trklbranch->GetEntry(iTracklet);
	new ((*fTrackletArray)[fTrackletArray->GetEntries()]) AliTRDtrackletMCM(*trkl);
      }
      return kTRUE;
    }
  }

  // raw tracklets
  AliTreeLoader *tl = (AliTreeLoader*) trackletLoader->GetBaseLoader("tracklets-raw");
  trackletTree = tl ? tl->Load(), tl->Tree() : 0x0;

  if (trackletTree) {
    if (!fTrackletArray)
      fTrackletArray = new TClonesArray("AliTRDtrackletWord", 1000);
    else if ((TClass::GetClass("AliTRDtrackletWord"))->InheritsFrom(fTrackletArray->Class()))
      fTrackletArray->Delete();
    else {
      fTrackletArray->Delete();
      delete fTrackletArray;
      fTrackletArray = new TClonesArray("AliTRDtrackletWord", 1000);
    }
    
    Int_t hc; 
    TClonesArray *ar = 0x0;
    trackletTree->SetBranchAddress("hc", &hc);
    trackletTree->SetBranchAddress("trkl", &ar);

    for (Int_t iEntry = 0; iEntry < trackletTree->GetEntries(); iEntry++) {
      trackletTree->GetEntry(iEntry);
      printf("%i tracklets in HC %i\n", ar->GetEntriesFast(), hc);
      for (Int_t iTracklet = 0; iTracklet < ar->GetEntriesFast(); iTracklet++) {
	AliTRDtrackletWord *trklWord = (AliTRDtrackletWord*) (*ar)[iTracklet];
	new((*fTrackletArray)[fTrackletArray->GetEntriesFast()]) AliTRDtrackletWord(trklWord->GetTrackletWord(), hc);
      }
    }
    return kTRUE;
  }
  
  AliError("No raw tracklet tree found\n");

  return kFALSE;
}

Bool_t AliTRDgtuSim::WriteTracksToDataFile(TList *listOfTracks, Int_t event) 
{
  // write the found tracks to a data file
  // used for comparison to VHDL simulation

    Int_t sm = 0;
    Int_t stack = 0;

    FILE *out;
    out = fopen("test.data", "a");

    AliDebug(1,Form("%i tracks found in event %i", listOfTracks->GetSize(), event));
    fprintf(out, "0 %5i %2i %i  00000000\n", event, sm, stack);
    for (Int_t i = 0; i < listOfTracks->GetSize(); i++) {
	AliTRDtrackGTU *trk = (AliTRDtrackGTU*) listOfTracks->At(i);
	sm = trk->GetSector();
	stack = trk->GetStack();
	fprintf(out, "1 %5i %2i %2i %3i %3i %3i %3i %3i %3i %3i %4i %f\n", event, sm, stack, trk->GetTrackletMask(), 
	       trk->GetTrackletIndex(5), 
	       trk->GetTrackletIndex(4), 
	       trk->GetTrackletIndex(3), 
	       trk->GetTrackletIndex(2), 
	       trk->GetTrackletIndex(1), 
	       trk->GetTrackletIndex(0),
	       trk->GetPtInt(), 
	       trk->GetPt());
    }
    fclose(out);
    return kTRUE;
}

Bool_t AliTRDgtuSim::WriteTracksToTree(TList *listOfTracks, Int_t /*event*/) 
{
  // write the tracks to the tree for intermediate storage

  AliDebug(1,Form("Writing %i tracks to the tree...", listOfTracks->GetEntries()));

  if (!listOfTracks)
    return kFALSE;

  if (listOfTracks->GetEntries() <= 0) 
    return kTRUE;

  if (!fTrackTree) {
    fTrackTree = new TTree("gtutracks", "GTU tracks");
    fTrackTree->SetDirectory(0);
  }

  AliTRDtrackGTU *trk = 0x0;
  TBranch *branch = fTrackTree->GetBranch("TRDgtuTrack");
  if (!branch) {
      branch = fTrackTree->Branch("TRDgtuTrack", "AliTRDtrackGTU", &trk, 32000, 99);
  }

  TIter next(listOfTracks);
  while ((trk = (AliTRDtrackGTU*) next())) {
      trk->CookLabel();
      branch->SetAddress(&trk);
      fTrackTree->Fill();   
  }
  fTrackTree->ResetBranchAddress(branch);

  return kTRUE; 
}

Bool_t AliTRDgtuSim::WriteTreesToFile() const {
  // write the trees holding tracklets and tracks to file

  TFile *f = TFile::Open("TRD.GtuTracking.root", "RECREATE");
  f->cd();
  if (fTrackTree)
    f->WriteTObject(fTrackTree);
  if (fTrackletTree)
    f->WriteTObject(fTrackletTree);
  f->Close();
  return kTRUE;
}

Bool_t AliTRDgtuSim::WriteTracksToESD(const TList * const listOfTracks, AliESDEvent *esd) 
{
  // fill the found tracks to the given ESD event

    if (esd) {
	TIter next(listOfTracks);
	while (AliTRDtrackGTU *trk = (AliTRDtrackGTU*) next()) {
	    AliESDTrdTrack *trdtrack = trk->CreateTrdTrack();
	    esd->AddTrdTrack(trdtrack);
	    delete trdtrack;
	}
    }
    return kTRUE;
}

Bool_t AliTRDgtuSim::WriteTracksToLoader()
{
  // write the GTU tracks to the dedicated loader
  // these tracks contain more information than the ones in the ESD

  if (!fTrackTree) {
    AliError("No track tree found!");
    return kFALSE;
  }

  AliRunLoader *rl = AliRunLoader::Instance();
  AliDataLoader *dl = 0x0;
  if (rl)
    dl = rl->GetLoader("TRDLoader")->GetDataLoader("gtutracks");
  if (!dl) {
    AliError("Could not get the GTU-track data loader!");
    return kFALSE;
  }

  TTree *trackTree = dl->Tree();
  if (!trackTree) {
    dl->MakeTree();
    trackTree = dl->Tree();
  }
  
  AliTRDtrackGTU *trk = 0x0;
  if (!trackTree->GetBranch("TRDtrackGTU"))
    trackTree->Branch("TRDtrackGTU", "AliTRDtrackGTU", &trk, 32000);
  
  AliDebug(1,Form("Found %d tracks", fTrackTree->GetEntries()));

  for (Int_t iTrack = 0; iTrack < fTrackTree->GetEntries(); iTrack++) {
    fTrackTree->SetBranchAddress("TRDgtuTrack", &trk);
    fTrackTree->GetEntry(iTrack);
    trackTree->SetBranchAddress("TRDtrackGTU", &trk);
    trackTree->Fill();
  }

  dl->WriteData("OVERWRITE");

  return kTRUE;
}
Commit	Line	Data
	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, 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
	16	/* $Id: AliTRDgtuSim.cxx 28397 2008-09-02 09:33:00Z cblume $ */
	17
	18	////////////////////////////////////////////////////////////////////////////
	19	// //
	20	// GTU simulation //
	21	// //
	22	// Authors: J. Klein (Jochen.Klein@cern.ch) //
	23	// //
	24	////////////////////////////////////////////////////////////////////////////
	25
	26	#include <stdio.h>
	27	#include <fstream>
	28	#include <string>
	29
	30	#include "TFile.h"
	31	#include "TROOT.h"
	32	#include "TClonesArray.h"
	33
	34	#include "AliRun.h"
	35	#include "AliRunLoader.h"
	36	#include "AliLoader.h"
	37	#include "AliTreeLoader.h"
	38	#include "AliLog.h"
	39	#include "AliESDTrdTrack.h"
	40
	41	#include "AliTRDgtuSim.h"
	42	#include "AliTRDgtuTMU.h"
	43	#include "AliTRDtrackGTU.h"
	44	#include "AliTRDtrackletWord.h"
	45	#include "AliTRDtrackletMCM.h"
	46	#include "AliESDEvent.h"
	47
	48	ClassImp(AliTRDgtuSim)
	49
	50	AliTRDgtuSim::AliTRDgtuSim(AliRunLoader *rl)
	51	: TObject(),
	52	fRunLoader(rl),
	53	fTMU(0x0),
	54	fTrackletArray(0x0),
	55	fTrackTree(0x0),
	56	fTrackletTree(0x0)
	57	{
	58	fTrackletTree = new TTree("gtutracklets", "Tree with GTU tracklets");
	59	fTrackletTree->SetDirectory(0);
	60	}
	61
	62	AliTRDgtuSim::~AliTRDgtuSim()
	63	{
	64	// destructor
	65
	66	if (fTrackletArray)
	67	fTrackletArray->Delete();
	68	delete fTrackletArray;
	69	delete fTrackletTree;
	70	}
	71
	72	Bool_t AliTRDgtuSim::RunGTUFromTrackletFile(TString filename, Int_t event, Int_t noev)
	73	{
	74	// run the GTU from a file of tracklets
	75	// used for comparison to VHDL simulation
	76
	77	AliInfo(Form("Running the GTU simulation on file: %s", filename.Data()));
	78	ifstream input(filename.Data());
	79
	80	std::string str;
	81	TString string;
	82	int lineno = 0;
	83
	84	Int_t iEventPrev = -1;
	85	Int_t iStackPrev = -1;
	86	Int_t iSecPrev = -1;
	87	Int_t iSec = -1;
	88	Int_t iStack = -1;
	89	Int_t iLink = -1;
	90	Int_t iEvent = -1;
	91	Int_t evcnt = -1;
	92
	93	fTMU = 0x0;
	94
	95	AliDebug(5,"--------- Reading from file ----------");
	96	while (getline(input, str)) {
	97	lineno++;
	98	string = str;
	99	AliDebug(5,Form("Line %i : %s", lineno, string.Data()));
	100
	101	TObjArray *tokens = string.Tokenize(" ");
	102	if (tokens->GetEntriesFast() < 7) {
	103	AliWarning(Form("Invalid input in line %i, too few parameters", lineno));
	104	continue;
	105	}
	106
	107	if ( ((TObjString*) tokens->At(0))->GetString().Atoi() < event)
	108	continue;
	109
	110	iEvent = ((TObjString*) tokens->At(0))->GetString().Atoi();
	111	iSec = ((TObjString*) tokens->At(1))->GetString().Atoi();
	112	iStack = ((TObjString*) tokens->At(2))->GetString().Atoi();
	113	iLink = 2 * ((TObjString) tokens->At(3))->GetString().Atoi() + ((TObjString) tokens->At(4))->GetString().Atoi();
	114
	115	if (iEvent != iEventPrev \|\| iStack != iStackPrev \|\| iSec != iSecPrev) {
	116	if(fTMU) {
	117	TList *listOfTracks = new TList();
	118	fTMU->SetStack(iStackPrev);
	119	fTMU->SetSector(iSecPrev);
	120	fTMU->RunTMU(listOfTracks);
	121	AliDebug(1,Form("--- There are %i tracks. Writing ...", listOfTracks->GetEntries()));
	122	WriteTracksToTree(listOfTracks);
	123	fTMU->WriteTrackletsToTree(fTrackletTree);
	124	WriteTracksToDataFile(listOfTracks, iEventPrev);
	125	if (listOfTracks->GetEntries() > 0)
	126	AliDebug(2,Form(" %4.1f GeV/c", ((AliTRDtrackGTU*) listOfTracks->At(0))->GetPt() ));
	127	delete fTMU;
	128	fTMU = new AliTRDgtuTMU();
	129	delete listOfTracks;
	130	listOfTracks = 0x0;
	131	} else {
	132	fTMU = new AliTRDgtuTMU();
	133	}
	134	iStackPrev = iStack;
	135	iSecPrev = iSec;
	136	iEventPrev = iEvent;
	137	evcnt++;
	138	if (evcnt == noev)
	139	break;
	140	}
	141	for (Int_t i = 5; i < tokens->GetEntriesFast(); i++) {
	142	UInt_t trackletWord = 0;
	143	sscanf(((TObjString*) tokens->At(i))->GetString().Data(), "%x", &trackletWord);
	144	if (trackletWord == 0x10001000)
	145	break;
	146	AliDebug(2,Form("%i. tracklet: %s -> 0x%08x", i-4, ((TObjString*) tokens->At(i))->GetString().Data(), trackletWord));
	147	AliTRDtrackletWord *trkl = new AliTRDtrackletWord(trackletWord);
	148	fTMU->AddTracklet(trkl, iLink);
	149	}
	150	}
	151
	152	if (fTMU && evcnt < noev) {
	153	TList *listOfTracks = new TList();
	154	fTMU->SetStack(iStackPrev);
	155	fTMU->SetSector(iSecPrev);
	156	fTMU->RunTMU(listOfTracks);
	157	WriteTracksToTree(listOfTracks);
	158	fTMU->WriteTrackletsToTree(fTrackletTree);
	159	WriteTracksToDataFile(listOfTracks, iEventPrev);
	160	delete fTMU;
	161	delete listOfTracks;
	162	fTMU = 0x0;
	163	}
	164
	165	AliInfo(Form("Analyzed %i events", evcnt));
	166	return kTRUE;
	167	}
	168
	169	Bool_t AliTRDgtuSim::RunGTU(AliLoader loader, AliESDEvent esd)
	170	{
	171	// run the GTU on tracklets taken from the loader
	172	// if specified the GTU tracks are written to the ESD event
	173
	174	if (!LoadTracklets(loader)) {
	175	AliError("Could not load the tracklets. Nothing done ...");
	176	return kFALSE;
	177	}
	178
	179	AliDebug(1, Form("running on %i tracklets", fTrackletArray->GetEntriesFast()));
	180
	181	Int_t iStackPrev = -1;
	182	Int_t iSecPrev = -1;
	183	Int_t iSec = -1;
	184	Int_t iStack = -1;
	185	Int_t iLink = -1;
	186
	187	if (fTMU) {
	188	delete fTMU;
	189	fTMU = 0x0;
	190	}
	191
	192	TList *listOfTracks = new TList();
	193
	194	TIter next(fTrackletArray);
	195	AliTRDtrackletBase *trkl;
	196
	197	while ((trkl = (AliTRDtrackletBase*) next())) {
	198	iSec = trkl->GetDetector() / 30;
	199	iStack = (trkl->GetDetector() % 30) / 6;
	200	iLink = 2 * (trkl->GetDetector() % 6) + (trkl->GetYbin() < 0 ? 0 : 1);
	201
	202	if (iStack != iStackPrev \|\| iSec != iSecPrev) {
	203	if(fTMU) {
	204	fTMU->SetStack(iStackPrev);
	205	fTMU->SetSector(iSecPrev);
	206	fTMU->RunTMU(listOfTracks);
	207	WriteTracksToTree(listOfTracks);
	208	fTMU->WriteTrackletsToTree(fTrackletTree);
	209	WriteTracksToESD(listOfTracks, esd);
	210	fTMU->Reset();
	211	listOfTracks->Delete();
	212	} else {
	213	fTMU = new AliTRDgtuTMU();
	214	}
	215	iStackPrev = iStack;
	216	iSecPrev = iSec;
	217	}
	218	AliDebug(1, Form("adding tracklet: 0x%08x", trkl->GetTrackletWord()));
	219	fTMU->AddTracklet(trkl, iLink);
	220	}
	221
	222	if (fTMU) {
	223	fTMU->SetStack(iStackPrev);
	224	fTMU->SetSector(iSecPrev);
	225	fTMU->RunTMU(listOfTracks);
	226	WriteTracksToTree(listOfTracks);
	227	fTMU->WriteTrackletsToTree(fTrackletTree);
	228	WriteTracksToESD(listOfTracks, esd);
	229	delete fTMU;
	230	fTMU = 0x0;
	231	listOfTracks->Delete();
	232	}
	233
	234	delete listOfTracks;
	235
	236	return kTRUE;
	237	}
	238
	239	Bool_t AliTRDgtuSim::LoadTracklets(AliLoader *const loader)
	240	{
	241	// load the tracklets using the given loader
	242
	243	AliDebug(1,"Loading tracklets ...");
	244
	245	if (!loader) {
	246	AliError("No loader given!");
	247	return kFALSE;
	248	}
	249
	250	AliDataLoader *trackletLoader = loader->GetDataLoader("tracklets");
	251	if (!trackletLoader) {
	252	AliError("No tracklet loader found!");
	253	return kFALSE;
	254	}
	255
	256	trackletLoader->Load();
	257	TTree *trackletTree = 0x0;
	258
	259	// simulated tracklets
	260	trackletTree = trackletLoader->Tree();
	261	if (trackletTree) {
	262	TBranch *trklbranch = trackletTree->GetBranch("mcmtrklbranch");
	263	if (trklbranch) {
	264	if (!fTrackletArray)
	265	fTrackletArray = new TClonesArray("AliTRDtrackletMCM", 1000);
	266	else if ((TClass::GetClass("AliTRDtrackletMCM"))->InheritsFrom(fTrackletArray->Class()))
	267	fTrackletArray->Delete();
	268	else {
	269	fTrackletArray->Delete();
	270	delete fTrackletArray;
	271	fTrackletArray = new TClonesArray("AliTRDtrackletMCM", 1000);
	272	}
	273
	274	AliTRDtrackletMCM *trkl = new AliTRDtrackletMCM;
	275	trklbranch->SetAddress(&trkl);
	276	for (Int_t iTracklet = 0; iTracklet < trklbranch->GetEntries(); iTracklet++) {
	277	trklbranch->GetEntry(iTracklet);
	278	new ((fTrackletArray)[fTrackletArray->GetEntries()]) AliTRDtrackletMCM(trkl);
	279	}
	280	return kTRUE;
	281	}
	282	}
	283
	284	// raw tracklets
	285	AliTreeLoader tl = (AliTreeLoader) trackletLoader->GetBaseLoader("tracklets-raw");
	286	trackletTree = tl ? tl->Load(), tl->Tree() : 0x0;
	287
	288	if (trackletTree) {
	289	if (!fTrackletArray)
	290	fTrackletArray = new TClonesArray("AliTRDtrackletWord", 1000);
	291	else if ((TClass::GetClass("AliTRDtrackletWord"))->InheritsFrom(fTrackletArray->Class()))
	292	fTrackletArray->Delete();
	293	else {
	294	fTrackletArray->Delete();
	295	delete fTrackletArray;
	296	fTrackletArray = new TClonesArray("AliTRDtrackletWord", 1000);
	297	}
	298
	299	Int_t hc;
	300	TClonesArray *ar = 0x0;
	301	trackletTree->SetBranchAddress("hc", &hc);
	302	trackletTree->SetBranchAddress("trkl", &ar);
	303
	304	for (Int_t iEntry = 0; iEntry < trackletTree->GetEntries(); iEntry++) {
	305	trackletTree->GetEntry(iEntry);
	306	printf("%i tracklets in HC %i\n", ar->GetEntriesFast(), hc);
	307	for (Int_t iTracklet = 0; iTracklet < ar->GetEntriesFast(); iTracklet++) {
	308	AliTRDtrackletWord trklWord = (AliTRDtrackletWord) (*ar)[iTracklet];
	309	new((*fTrackletArray)[fTrackletArray->GetEntriesFast()]) AliTRDtrackletWord(trklWord->GetTrackletWord(), hc);
	310	}
	311	}
	312	return kTRUE;
	313	}
	314
	315	AliError("No raw tracklet tree found\n");
	316
	317	return kFALSE;
	318	}
	319
	320	Bool_t AliTRDgtuSim::WriteTracksToDataFile(TList *listOfTracks, Int_t event)
	321	{
	322	// write the found tracks to a data file
	323	// used for comparison to VHDL simulation
	324
	325	Int_t sm = 0;
	326	Int_t stack = 0;
	327
	328	FILE *out;
	329	out = fopen("test.data", "a");
	330
	331	AliDebug(1,Form("%i tracks found in event %i", listOfTracks->GetSize(), event));
	332	fprintf(out, "0 %5i %2i %i 00000000\n", event, sm, stack);
	333	for (Int_t i = 0; i < listOfTracks->GetSize(); i++) {
	334	AliTRDtrackGTU trk = (AliTRDtrackGTU) listOfTracks->At(i);
	335	sm = trk->GetSector();
	336	stack = trk->GetStack();
	337	fprintf(out, "1 %5i %2i %2i %3i %3i %3i %3i %3i %3i %3i %4i %f\n", event, sm, stack, trk->GetTrackletMask(),
	338	trk->GetTrackletIndex(5),
	339	trk->GetTrackletIndex(4),
	340	trk->GetTrackletIndex(3),
	341	trk->GetTrackletIndex(2),
	342	trk->GetTrackletIndex(1),
	343	trk->GetTrackletIndex(0),
	344	trk->GetPtInt(),
	345	trk->GetPt());
	346	}
	347	fclose(out);
	348	return kTRUE;
	349	}
	350
	351	Bool_t AliTRDgtuSim::WriteTracksToTree(TList listOfTracks, Int_t /event*/)
	352	{
	353	// write the tracks to the tree for intermediate storage
	354
	355	AliDebug(1,Form("Writing %i tracks to the tree...", listOfTracks->GetEntries()));
	356
	357	if (!listOfTracks)
	358	return kFALSE;
	359
	360	if (listOfTracks->GetEntries() <= 0)
	361	return kTRUE;
	362
	363	if (!fTrackTree) {
	364	fTrackTree = new TTree("gtutracks", "GTU tracks");
	365	fTrackTree->SetDirectory(0);
	366	}
	367
	368	AliTRDtrackGTU *trk = 0x0;
	369	TBranch *branch = fTrackTree->GetBranch("TRDgtuTrack");
	370	if (!branch) {
	371	branch = fTrackTree->Branch("TRDgtuTrack", "AliTRDtrackGTU", &trk, 32000, 99);
	372	}
	373
	374	TIter next(listOfTracks);
	375	while ((trk = (AliTRDtrackGTU*) next())) {
	376	trk->CookLabel();
	377	branch->SetAddress(&trk);
	378	fTrackTree->Fill();
	379	}
	380	fTrackTree->ResetBranchAddress(branch);
	381
	382	return kTRUE;
	383	}
	384
	385	Bool_t AliTRDgtuSim::WriteTreesToFile() const {
	386	// write the trees holding tracklets and tracks to file
	387
	388	TFile *f = TFile::Open("TRD.GtuTracking.root", "RECREATE");
	389	f->cd();
	390	if (fTrackTree)
	391	f->WriteTObject(fTrackTree);
	392	if (fTrackletTree)
	393	f->WriteTObject(fTrackletTree);
	394	f->Close();
	395	return kTRUE;
	396	}
	397
	398	Bool_t AliTRDgtuSim::WriteTracksToESD(const TList * const listOfTracks, AliESDEvent *esd)
	399	{
	400	// fill the found tracks to the given ESD event
	401
	402	if (esd) {
	403	TIter next(listOfTracks);
	404	while (AliTRDtrackGTU trk = (AliTRDtrackGTU) next()) {
	405	AliESDTrdTrack *trdtrack = trk->CreateTrdTrack();
	406	esd->AddTrdTrack(trdtrack);
	407	delete trdtrack;
	408	}
	409	}
	410	return kTRUE;
	411	}
	412
	413	Bool_t AliTRDgtuSim::WriteTracksToLoader()
	414	{
	415	// write the GTU tracks to the dedicated loader
	416	// these tracks contain more information than the ones in the ESD
	417
	418	if (!fTrackTree) {
	419	AliError("No track tree found!");
	420	return kFALSE;
	421	}
	422
	423	AliRunLoader *rl = AliRunLoader::Instance();
	424	AliDataLoader *dl = 0x0;
	425	if (rl)
	426	dl = rl->GetLoader("TRDLoader")->GetDataLoader("gtutracks");
	427	if (!dl) {
	428	AliError("Could not get the GTU-track data loader!");
	429	return kFALSE;
	430	}
	431
	432	TTree *trackTree = dl->Tree();
	433	if (!trackTree) {
	434	dl->MakeTree();
	435	trackTree = dl->Tree();
	436	}
	437
	438	AliTRDtrackGTU *trk = 0x0;
	439	if (!trackTree->GetBranch("TRDtrackGTU"))
	440	trackTree->Branch("TRDtrackGTU", "AliTRDtrackGTU", &trk, 32000);
	441
	442	AliDebug(1,Form("Found %d tracks", fTrackTree->GetEntries()));
	443
	444	for (Int_t iTrack = 0; iTrack < fTrackTree->GetEntries(); iTrack++) {
	445	fTrackTree->SetBranchAddress("TRDgtuTrack", &trk);
	446	fTrackTree->GetEntry(iTrack);
	447	trackTree->SetBranchAddress("TRDtrackGTU", &trk);
	448	trackTree->Fill();
	449	}
	450
	451	dl->WriteData("OVERWRITE");
	452
	453	return kTRUE;
	454	}