[u/mrichter/AliRoot.git] / ITS / AliITSDigitizer.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.                  *
 **************************************************************************/
 
/* $Id$ */
///////////////////////////////////////////////////////////////////////////
//Piotr.Skowronski@cern.ch :                                             //
//Corrections applied in order to compile (only)                         // 
//   with new I/O and folder structure                                   //
//To be implemented correctly by responsible                             //
//                                                                       //
//  Class used to steer                                                  //
//  the digitization for ITS                                             //
//                                                                       //
///////////////////////////////////////////////////////////////////////////

#include <stdlib.h>
#include <TClonesArray.h>
#include <TTree.h>
#include <TBranch.h>

#include <AliRun.h>
#include <AliRunLoader.h>
#include <AliLoader.h>
#include <AliRunDigitizer.h>
#include "AliITSDigitizer.h"
#include "AliITSgeom.h"
#include "AliITSsimulation.h"

ClassImp(AliITSDigitizer)

//______________________________________________________________________
AliITSDigitizer::AliITSDigitizer() : AliDigitizer(){
    // Default constructor. Assign fITS since it is never written out from
    // here. 
    // Inputs:
    //      Option_t * opt   Not used
    // Outputs:
    //      none.
    // Return:
    //      A blank AliITSDigitizer class.

    fITS      = 0;
    fModActive   = 0;
    fRoif     = -1;
    fRoiifile = 0;
    fInit     = kFALSE;
}
//______________________________________________________________________
AliITSDigitizer::AliITSDigitizer(AliRunDigitizer *mngr) : AliDigitizer(mngr){
    // Standard constructor. Assign fITS since it is never written out from
    // here. 
    // Inputs:
    //      Option_t * opt   Not used
    // Outputs:
    //      none.
    // Return:
    //      An AliItSDigitizer class.

    fITS      = 0;
    fModActive   = 0;
    fRoif     = -1;
    fRoiifile = 0;
    fInit     = kFALSE;
}

//______________________________________________________________________
AliITSDigitizer::AliITSDigitizer(const AliITSDigitizer &/*rec*/):AliDigitizer(/*rec*/){
    // Copy constructor. 

  Error("Copy constructor","Copy constructor not allowed");
  
}
//______________________________________________________________________
AliITSDigitizer& AliITSDigitizer::operator=(const AliITSDigitizer& /*source*/){
    // Assignment operator. This is a function which is not allowed to be
    // done.
    Error("operator=","Assignment operator not allowed\n");
    return *this; 
}

//______________________________________________________________________
AliITSDigitizer::~AliITSDigitizer(){
    // Default destructor. 
    // Inputs:
    //      Option_t * opt   Not used
    // Outputs:
    //      none.
    // Return:
    //      none.

    fITS = 0; // don't delete fITS. Done else where.
    if(fModActive) delete[] fModActive;
}
//______________________________________________________________________
Bool_t AliITSDigitizer::Init(){
    // Initialization. Set up region of interest, if switched on, and
    // loads ITS and ITSgeom.
    // Inputs:
    //      none.
    // Outputs:
    //      none.
    // Return:
    //      none.

    fInit = kTRUE; // Assume for now init will work.
    if(!gAlice) {
	fITS      = 0;
	fRoiifile = 0;
	fInit     = kFALSE;
	Warning("Init","gAlice not found");
	return fInit;
    } // end if
    fITS = (AliITS *)(gAlice->GetDetector("ITS"));
    if(!fITS){
	fRoiifile = 0;
	fInit     = kFALSE;
	Warning("Init","ITS not found");
	return fInit;
    } else if(fITS->GetITSgeom()){
	//cout << "fRoif,fRoiifile="<<fRoif<<" "<<fRoiifile<<endl;
	fModActive = new Bool_t[fITS->GetITSgeom()->GetIndexMax()];
    } else{
	fRoiifile = 0;
	fInit     = kFALSE;
	Warning("Init","ITS geometry not found");
	return fInit;
    } // end if
    // fModActive needs to be set to a default all kTRUE value
    for(Int_t i=0;i<fITS->GetITSgeom()->GetIndexMax();i++) fModActive[i] = kTRUE;
    return fInit;
}
//______________________________________________________________________
void AliITSDigitizer::Exec(Option_t* opt){
    // Main digitization function. 
    // Inputs:
    //      Option_t * opt   list of sub detector to digitize. =0 all.
    // Outputs:
    //      none.
    // Return:
    //      none.

    char name[20] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
    const char *all;
    const char *det[3] = {strstr(opt,"SPD"),strstr(opt,"SDD"),
                          strstr(opt,"SSD")};
    if( !det[0] && !det[1] && !det[2] ) all = "All";
    else all = 0;
    AliITSsimulation *sim      = 0;
    fITS->SetDefaults();
    fITS->SetDefaultSimulation();
    if(!fInit){
	Error("Exec","Init not succesfull, aborting.");
	return;
    } // end if

    sprintf(name,"%s",fITS->GetName());

    Int_t nfiles = GetManager()->GetNinputs();
    Int_t event  = GetManager()->GetOutputEventNr();
     Int_t size   = fITS->GetITSgeom()->GetIndexMax();
    Int_t module,id,ifiles,mask;
    Bool_t lmod;
    Int_t *fl = new Int_t[nfiles];
    fl[0] = fRoiifile;
    mask = 1;
    for(id=0;id<nfiles;id++) 
     if(id!=fRoiifile)
      {
       // just in case fRoiifile!=0.
        fl[mask] = id;
        mask++;
      } // end for,if
    TClonesArray * sdig = new TClonesArray( "AliITSpListItem",1000 );
    
    TString loadname(name);
    loadname+="Loader";
    
    AliRunLoader *inRL = 0x0, *outRL = 0x0;
    AliLoader *ingime = 0x0, *outgime = 0x0;    
    
    outRL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());    
    if ( outRL == 0x0)
     {
       Error("Exec","Can not get Output Run Loader");
       return;
     }
    outRL->GetEvent(event);
    outgime = outRL->GetLoader(loadname);
    if ( outgime == 0x0)
     {
       Error("Exec","Can not get Output ITS Loader");
       return;
     }

    outgime->LoadDigits("update");
    if (outgime->TreeD() == 0x0) outgime->MakeTree("D");
    
    // Digitize
    fITS->MakeBranchInTreeD(outgime->TreeD());
    if(fRoif!=0) Info("AliITSDigitizer","Region of Interest digitization selected");
    else Info("AliITSDigitizer","No Region of Interest selected. Digitizing everything");
    //cout <<"fModActive="<<fModActive<<" fRoif="<<fRoif;
    if(fModActive==0) fRoif = 0; // fModActive array must be define for RIO cuts.
    //cout <<" fRoif="<<fRoif<<endl;

    for(ifiles=0; ifiles<nfiles; ifiles++ )
     {
       inRL =  AliRunLoader::GetRunLoader(fManager->GetInputFolderName(fl[ifiles]));
       ingime = inRL->GetLoader(loadname);
       if (ingime->TreeS() == 0x0) ingime->LoadSDigits();
     }

    for(module=0; module<size; module++ )
     {
       if(fModActive && fRoif!=0) if(!fModActive[module]) continue;
       id = fITS->GetITSgeom()->GetModuleType(module);
       if(!all && !det[id]) continue;
       sim      = (AliITSsimulation*)fITS->GetSimulationModel(id);
       if(!sim) {
            Error( "Exec", "The simulation class was not instanciated!" );
            exit(1);
        } // end if !sim
           // Fill the module with the sum of SDigits
        sim->InitSimulationModule(module, event);
	//cout << "Module=" << module;
        for(ifiles=0; ifiles<nfiles; ifiles++ )
         {
           if(fRoif!=0) if(!fModActive[module]) continue;
            
           inRL =  AliRunLoader::GetRunLoader(fManager->GetInputFolderName(fl[ifiles]));
           ingime = inRL->GetLoader(loadname);
           
           TTree *treeS = ingime->TreeS();
           fITS->SetTreeAddress();
           
           if( !(treeS && fITS->GetSDigits()) ) continue; 
           TBranch *brchSDigits = treeS->GetBranch( name );
           if( brchSDigits ) 
            {
                brchSDigits->SetAddress( &sdig ); 
            } else {
                Error( "Exec", "branch ITS not found in TreeS, input file %d ",
                       ifiles );
		return;
            } // end if brchSDigits
            sdig->Clear();
            mask = GetManager()->GetMask(ifiles);
            // add summable digits to module
            brchSDigits->GetEvent( module );
            lmod = sim->AddSDigitsToModule(sdig,mask);
            if(fRegionOfInterest && (ifiles==0))
             {
               fModActive[module] = lmod;
             } // end if
        } // end for ifiles
	//cout << " end ifiles loop" << endl;
        // Digitize current module sum(SDigits)->Digits
	sim->FinishSDigitiseModule();

        // fills all branches - wasted disk space
        outgime->TreeD()->Fill();
	fITS->ResetDigits();
    } // end for module
    
    outgime->TreeD()->AutoSave();
    outgime->WriteDigits("OVERWRITE");
    outgime->UnloadDigits();
    for(ifiles=0; ifiles<nfiles; ifiles++ )
     {
       inRL =  AliRunLoader::GetRunLoader(fManager->GetInputFolderName(fl[ifiles]));
       ingime = inRL->GetLoader(loadname);
       ingime->UnloadSDigits();
     }

    delete[] fl;
    sdig->Clear();
    delete sdig;
    for(Int_t i=0;i<fITS->GetITSgeom()->GetIndexMax();i++) fModActive[i] = kTRUE;
    

    return;
}
//______________________________________________________________________
void AliITSDigitizer::SetByRegionOfInterest(TTree *ts){
    // Scans through the ITS branch of the SDigits tree, ts, for modules
    // which have SDigits in them. For these modules, a flag is set to
    // digitize only these modules. The value of fRoif determines how many
    // neighboring modules will also be turned on. fRoif=0 will turn on only
    // those modules with SDigits in them. fRoif=1 will turn on, in addition,
    // those modules that are +-1 module from the one with the SDigits. And
    // So on. This last feature is not supported yet.
    // Inputs:
    //      TTree *ts  The tree in which the existing SDigits will define the
    //                 region of interest.
    // Outputs:
    //      none.
    // Return:
    //      none.
    Int_t m,nm,i;

    if(fRoif==0) return;
    if(ts==0) return;
    TBranch *brchSDigits = ts->GetBranch(fITS->GetName());
    TClonesArray * sdig = new TClonesArray( "AliITSpListItem",1000 );
    //cout << "Region of Interest ts="<<ts<<" brchSDigits="<<brchSDigits<<" sdig="<<sdig<<endl;

    if( brchSDigits ) {
      brchSDigits->SetAddress( &sdig );
    } else {
      Error( "SetByRegionOfInterest","branch ITS not found in TreeS");
      return;
    } // end if brchSDigits

    nm = fITS->GetITSgeom()->GetIndexMax();
    for(m=0;m<nm;m++){
      //cout << " fModActive["<<m<<"]=";
      fModActive[m] = kFALSE; // Not active by default
      sdig->Clear();
      brchSDigits->GetEvent(m);
      if(sdig->GetLast()>=0) for(i=0;i<sdig->GetLast();i++){
          // activate the necessary modules
          if(((AliITSpList*)sdig->At(m))->GetpListItem(i)->GetSignal()>0.0){ // Must have non zero signal.
            fModActive[m] = kTRUE;
            break;
          } // end if
      } // end if. end for i.
      //cout << fModActive[m];
      //cout << endl;
    } // end for m
    Info("AliITSDigitizer","Digitization by Region of Interest selected");
    sdig->Clear();
    delete sdig;
    return;
}
Commit	Line	Data
9ad8b5dd	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
88cb7938	16	/* $Id$ */
7d62fb64	17	///////////////////////////////////////////////////////////////////////////
	18	//Piotr.Skowronski@cern.ch : //
	19	//Corrections applied in order to compile (only) //
	20	// with new I/O and folder structure //
	21	//To be implemented correctly by responsible //
	22	// //
	23	// Class used to steer //
	24	// the digitization for ITS //
	25	// //
	26	///////////////////////////////////////////////////////////////////////////
88cb7938	27
28af028c	28	#include <stdlib.h>
88cb7938	29	#include <TClonesArray.h>
9ad8b5dd	30	#include <TTree.h>
	31	#include <TBranch.h>
	32
	33	#include <AliRun.h>
88cb7938	34	#include <AliRunLoader.h>
88cb7938	35	#include <AliLoader.h>
9ad8b5dd	36	#include <AliRunDigitizer.h>
9ad8b5dd	37	#include "AliITSDigitizer.h"
88cb7938	38	#include "AliITSgeom.h"
9ad8b5dd	39	#include "AliITSsimulation.h"
0b572028	40
9ad8b5dd	41	ClassImp(AliITSDigitizer)
	42
	43	//______________________________________________________________________
	44	AliITSDigitizer::AliITSDigitizer() : AliDigitizer(){
	45	// Default constructor. Assign fITS since it is never written out from
	46	// here.
	47	// Inputs:
	48	// Option_t * opt Not used
	49	// Outputs:
	50	// none.
	51	// Return:
	52	// A blank AliITSDigitizer class.
	53
fd04285a	54	fITS = 0;
0b572028	55	fModActive = 0;
fd04285a	56	fRoif = -1;
fca85276	57	fRoiifile = 0;
fd04285a	58	fInit = kFALSE;
9ad8b5dd	59	}
	60	//______________________________________________________________________
	61	AliITSDigitizer::AliITSDigitizer(AliRunDigitizer *mngr) : AliDigitizer(mngr){
	62	// Standard constructor. Assign fITS since it is never written out from
	63	// here.
	64	// Inputs:
	65	// Option_t * opt Not used
	66	// Outputs:
	67	// none.
	68	// Return:
	69	// An AliItSDigitizer class.
	70
fd04285a	71	fITS = 0;
0b572028	72	fModActive = 0;
fd04285a	73	fRoif = -1;
	74	fRoiifile = 0;
	75	fInit = kFALSE;
9ad8b5dd	76	}
7d62fb64	77
	78	//______________________________________________________________________
	79	AliITSDigitizer::AliITSDigitizer(const AliITSDigitizer &/rec/):AliDigitizer(/rec/){
	80	// Copy constructor.
	81
	82	Error("Copy constructor","Copy constructor not allowed");
	83
	84	}
	85	//______________________________________________________________________
	86	AliITSDigitizer& AliITSDigitizer::operator=(const AliITSDigitizer& /source/){
	87	// Assignment operator. This is a function which is not allowed to be
	88	// done.
	89	Error("operator=","Assignment operator not allowed\n");
	90	return *this;
	91	}
	92
9ad8b5dd	93	//______________________________________________________________________
	94	AliITSDigitizer::~AliITSDigitizer(){
	95	// Default destructor.
	96	// Inputs:
	97	// Option_t * opt Not used
	98	// Outputs:
	99	// none.
	100	// Return:
	101	// none.
	102
	103	fITS = 0; // don't delete fITS. Done else where.
0b572028	104	if(fModActive) delete[] fModActive;
9ad8b5dd	105	}
9ad8b5dd	106	//______________________________________________________________________
9ad8b5dd	107	Bool_t AliITSDigitizer::Init(){
fd04285a	108	// Initialization. Set up region of interest, if switched on, and
fd04285a	109	// loads ITS and ITSgeom.
9ad8b5dd	110	// Inputs:
	111	// none.
	112	// Outputs:
	113	// none.
	114	// Return:
	115	// none.
fca85276	116
fd04285a	117	fInit = kTRUE; // Assume for now init will work.
fca85276	118	if(!gAlice) {
fca85276	119	fITS = 0;
fca85276	120	fRoiifile = 0;
fd04285a	121	fInit = kFALSE;
	122	Warning("Init","gAlice not found");
	123	return fInit;
fca85276	124	} // end if
	125	fITS = (AliITS *)(gAlice->GetDetector("ITS"));
	126	if(!fITS){
fca85276	127	fRoiifile = 0;
fd04285a	128	fInit = kFALSE;
	129	Warning("Init","ITS not found");
	130	return fInit;
fca85276	131	} else if(fITS->GetITSgeom()){
fd04285a	132	//cout << "fRoif,fRoiifile="<<fRoif<<" "<<fRoiifile<<endl;
0b572028	133	fModActive = new Bool_t[fITS->GetITSgeom()->GetIndexMax()];
fca85276	134	} else{
fca85276	135	fRoiifile = 0;
fd04285a	136	fInit = kFALSE;
	137	Warning("Init","ITS geometry not found");
	138	return fInit;
fca85276	139	} // end if
0b572028	140	// fModActive needs to be set to a default all kTRUE value
0b572028	141	for(Int_t i=0;i<fITS->GetITSgeom()->GetIndexMax();i++) fModActive[i] = kTRUE;
fd04285a	142	return fInit;
9ad8b5dd	143	}
	144	//______________________________________________________________________
	145	void AliITSDigitizer::Exec(Option_t* opt){
fca85276	146	// Main digitization function.
9ad8b5dd	147	// Inputs:
fca85276	148	// Option_t * opt list of sub detector to digitize. =0 all.
9ad8b5dd	149	// Outputs:
	150	// none.
	151	// Return:
	152	// none.
f1888ca5	153
9ad8b5dd	154	char name[20] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
8e8eae84	155	const char *all;
9ad8b5dd	156	const char *det[3] = {strstr(opt,"SPD"),strstr(opt,"SDD"),
9ad8b5dd	157	strstr(opt,"SSD")};
f1888ca5	158	if( !det[0] && !det[1] && !det[2] ) all = "All";
9ad8b5dd	159	else all = 0;
9ad8b5dd	160	AliITSsimulation *sim = 0;
7d62fb64	161	fITS->SetDefaults();
7d62fb64	162	fITS->SetDefaultSimulation();
fd04285a	163	if(!fInit){
fd04285a	164	Error("Exec","Init not succesfull, aborting.");
f1888ca5	165	return;
9ad8b5dd	166	} // end if
9ad8b5dd	167
fd04285a	168	sprintf(name,"%s",fITS->GetName());
9ad8b5dd	169
f1888ca5	170	Int_t nfiles = GetManager()->GetNinputs();
f1888ca5	171	Int_t event = GetManager()->GetOutputEventNr();
7d62fb64	172	Int_t size = fITS->GetITSgeom()->GetIndexMax();
fd04285a	173	Int_t module,id,ifiles,mask;
	174	Bool_t lmod;
	175	Int_t *fl = new Int_t[nfiles];
	176	fl[0] = fRoiifile;
	177	mask = 1;
88cb7938	178	for(id=0;id<nfiles;id++)
	179	if(id!=fRoiifile)
	180	{
	181	// just in case fRoiifile!=0.
	182	fl[mask] = id;
	183	mask++;
	184	} // end for,if
f1888ca5	185	TClonesArray * sdig = new TClonesArray( "AliITSpListItem",1000 );
f1888ca5	186
88cb7938	187	TString loadname(name);
	188	loadname+="Loader";
	189
	190	AliRunLoader inRL = 0x0, outRL = 0x0;
	191	AliLoader ingime = 0x0, outgime = 0x0;
	192
	193	outRL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
	194	if ( outRL == 0x0)
	195	{
	196	Error("Exec","Can not get Output Run Loader");
	197	return;
	198	}
	199	outRL->GetEvent(event);
	200	outgime = outRL->GetLoader(loadname);
	201	if ( outgime == 0x0)
	202	{
	203	Error("Exec","Can not get Output ITS Loader");
	204	return;
	205	}
7d62fb64	206
88cb7938	207	outgime->LoadDigits("update");
	208	if (outgime->TreeD() == 0x0) outgime->MakeTree("D");
	209
fd04285a	210	// Digitize
88cb7938	211	fITS->MakeBranchInTreeD(outgime->TreeD());
f8d9a5b8	212	if(fRoif!=0) Info("AliITSDigitizer","Region of Interest digitization selected");
f8d9a5b8	213	else Info("AliITSDigitizer","No Region of Interest selected. Digitizing everything");
0b572028	214	//cout <<"fModActive="<<fModActive<<" fRoif="<<fRoif;
0b572028	215	if(fModActive==0) fRoif = 0; // fModActive array must be define for RIO cuts.
f8d9a5b8	216	//cout <<" fRoif="<<fRoif<<endl;
f1888ca5	217
88cb7938	218	for(ifiles=0; ifiles<nfiles; ifiles++ )
	219	{
	220	inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(fl[ifiles]));
	221	ingime = inRL->GetLoader(loadname);
	222	if (ingime->TreeS() == 0x0) ingime->LoadSDigits();
	223	}
	224
	225	for(module=0; module<size; module++ )
	226	{
7d62fb64	227	if(fModActive && fRoif!=0) if(!fModActive[module]) continue;
	228	id = fITS->GetITSgeom()->GetModuleType(module);
	229	if(!all && !det[id]) continue;
	230	sim = (AliITSsimulation*)fITS->GetSimulationModel(id);
	231	if(!sim) {
f1888ca5	232	Error( "Exec", "The simulation class was not instanciated!" );
9ad8b5dd	233	exit(1);
9ad8b5dd	234	} // end if !sim
7d62fb64	235	// Fill the module with the sum of SDigits
fd04285a	236	sim->InitSimulationModule(module, event);
fd04285a	237	//cout << "Module=" << module;
88cb7938	238	for(ifiles=0; ifiles<nfiles; ifiles++ )
	239	{
	240	if(fRoif!=0) if(!fModActive[module]) continue;
	241
	242	inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(fl[ifiles]));
	243	ingime = inRL->GetLoader(loadname);
	244
	245	TTree *treeS = ingime->TreeS();
	246	fITS->SetTreeAddress();
	247
	248	if( !(treeS && fITS->GetSDigits()) ) continue;
	249	TBranch *brchSDigits = treeS->GetBranch( name );
	250	if( brchSDigits )
	251	{
f1888ca5	252	brchSDigits->SetAddress( &sdig );
	253	} else {
	254	Error( "Exec", "branch ITS not found in TreeS, input file %d ",
	255	ifiles );
fd04285a	256	return;
f1888ca5	257	} // end if brchSDigits
f1888ca5	258	sdig->Clear();
fd04285a	259	mask = GetManager()->GetMask(ifiles);
f1888ca5	260	// add summable digits to module
f1888ca5	261	brchSDigits->GetEvent( module );
fd04285a	262	lmod = sim->AddSDigitsToModule(sdig,mask);
e95475eb	263	if(fRegionOfInterest && (ifiles==0))
88cb7938	264	{
	265	fModActive[module] = lmod;
	266	} // end if
f1888ca5	267	} // end for ifiles
fd04285a	268	//cout << " end ifiles loop" << endl;
fca85276	269	// Digitize current module sum(SDigits)->Digits
7d62fb64	270	sim->FinishSDigitiseModule();
f1888ca5	271
9ad8b5dd	272	// fills all branches - wasted disk space
88cb7938	273	outgime->TreeD()->Fill();
7d62fb64	274	fITS->ResetDigits();
9ad8b5dd	275	} // end for module
7d62fb64	276
88cb7938	277	outgime->TreeD()->AutoSave();
	278	outgime->WriteDigits("OVERWRITE");
	279	outgime->UnloadDigits();
88cb7938	280	for(ifiles=0; ifiles<nfiles; ifiles++ )
	281	{
	282	inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(fl[ifiles]));
	283	ingime = inRL->GetLoader(loadname);
	284	ingime->UnloadSDigits();
	285	}
fd04285a	286
fd04285a	287	delete[] fl;
f1888ca5	288	sdig->Clear();
f1888ca5	289	delete sdig;
0b572028	290	for(Int_t i=0;i<fITS->GetITSgeom()->GetIndexMax();i++) fModActive[i] = kTRUE;
7d62fb64	291
7d62fb64	292
fd04285a	293	return;
9ad8b5dd	294	}
fca85276	295	//______________________________________________________________________
	296	void AliITSDigitizer::SetByRegionOfInterest(TTree *ts){
	297	// Scans through the ITS branch of the SDigits tree, ts, for modules
	298	// which have SDigits in them. For these modules, a flag is set to
	299	// digitize only these modules. The value of fRoif determines how many
	300	// neighboring modules will also be turned on. fRoif=0 will turn on only
	301	// those modules with SDigits in them. fRoif=1 will turn on, in addition,
	302	// those modules that are +-1 module from the one with the SDigits. And
	303	// So on. This last feature is not supported yet.
	304	// Inputs:
	305	// TTree *ts The tree in which the existing SDigits will define the
	306	// region of interest.
	307	// Outputs:
	308	// none.
	309	// Return:
	310	// none.
fd04285a	311	Int_t m,nm,i;
	312
	313	if(fRoif==0) return;
	314	if(ts==0) return;
fca85276	315	TBranch *brchSDigits = ts->GetBranch(fITS->GetName());
fca85276	316	TClonesArray * sdig = new TClonesArray( "AliITSpListItem",1000 );
fd04285a	317	//cout << "Region of Interest ts="<<ts<<" brchSDigits="<<brchSDigits<<" sdig="<<sdig<<endl;
fca85276	318
fca85276	319	if( brchSDigits ) {
88cb7938	320	brchSDigits->SetAddress( &sdig );
fca85276	321	} else {
88cb7938	322	Error( "SetByRegionOfInterest","branch ITS not found in TreeS");
88cb7938	323	return;
fca85276	324	} // end if brchSDigits
	325
	326	nm = fITS->GetITSgeom()->GetIndexMax();
	327	for(m=0;m<nm;m++){
88cb7938	328	//cout << " fModActive["<<m<<"]=";
	329	fModActive[m] = kFALSE; // Not active by default
	330	sdig->Clear();
	331	brchSDigits->GetEvent(m);
	332	if(sdig->GetLast()>=0) for(i=0;i<sdig->GetLast();i++){
	333	// activate the necessary modules
	334	if(((AliITSpList*)sdig->At(m))->GetpListItem(i)->GetSignal()>0.0){ // Must have non zero signal.
	335	fModActive[m] = kTRUE;
	336	break;
	337	} // end if
	338	} // end if. end for i.
	339	//cout << fModActive[m];
	340	//cout << endl;
fca85276	341	} // end for m
f8d9a5b8	342	Info("AliITSDigitizer","Digitization by Region of Interest selected");
fca85276	343	sdig->Clear();
fca85276	344	delete sdig;
fd04285a	345	return;
fca85276	346	}