[u/mrichter/AliRoot.git] / ITS / AliITSLoader.cxx

#include "AliITSdigit.h"
#include "AliITSLoader.h"
#include "AliRunLoader.h"

///////////////////////////////////////////////////////////////////////////
// Loader for ITS
// it manages the I/O for:
// raw clusters, primary vertices
// V0 and cascade
// and tracks propagated to the origin
//////////////////////////////////////////////////////////////////////////
const TString AliITSLoader::fgkDefaultRawClustersContainerName = "TreeC";
const TString AliITSLoader::fgkDefaultBackTracksContainerName = "TreeB";
const TString AliITSLoader::fgkDefaultVerticesContainerName = "Vertex";
const TString AliITSLoader::fgkDefaultV0ContainerName = "V0";
const TString AliITSLoader::fgkDefaultCascadeContainerName = "Cascade";
ClassImp(AliITSLoader)

/**********************************************************************/
  AliITSLoader::AliITSLoader():AliLoader(){
  // Default constructor
  fITSpid = 0;
  fGeom = 0;
}
/*********************************************************************/
AliITSLoader::AliITSLoader(const Char_t *name,const Char_t *topfoldername):
AliLoader(name,topfoldername){
  //ctor   
    AliDataLoader* rawClustersDataLoader = new AliDataLoader(
        fDetectorName + ".RawCl.root",fgkDefaultRawClustersContainerName,
        "Raw Clusters");
    fDataLoaders->Add(rawClustersDataLoader);
    rawClustersDataLoader->SetEventFolder(fEventFolder);
    rawClustersDataLoader->SetFolder(GetDetectorDataFolder());

    AliDataLoader* backTracksDataLoader =  new AliDataLoader(
        fDetectorName + ".BackTracks.root",fgkDefaultBackTracksContainerName,
        "Back Propagated Tracks");
    fDataLoaders->Add(backTracksDataLoader);
    backTracksDataLoader->SetEventFolder(fEventFolder);
    backTracksDataLoader->SetFolder(GetDetectorDataFolder());

    AliDataLoader* vertexDataLoader = new AliDataLoader(
        fDetectorName + ".Vertex.root",fgkDefaultVerticesContainerName,
        "Primary Vertices","O");
    fDataLoaders->Add(vertexDataLoader);
    vertexDataLoader->SetEventFolder(fEventFolder);
    vertexDataLoader->SetFolder(GetDetectorDataFolder());

    AliDataLoader* v0DataLoader = new AliDataLoader(
        fDetectorName + ".V0s.root",fgkDefaultV0ContainerName,"V0 Vertices");
    fDataLoaders->Add(v0DataLoader);
    v0DataLoader->SetEventFolder(fEventFolder);
    v0DataLoader->SetFolder(GetDetectorDataFolder());

    AliDataLoader* cascadeDataLoader = new AliDataLoader(
        fDetectorName + ".Cascades.root",fgkDefaultCascadeContainerName,
        "Cascades");
    fDataLoaders->Add(cascadeDataLoader);
    cascadeDataLoader->SetEventFolder(fEventFolder);
    cascadeDataLoader->SetFolder(GetDetectorDataFolder());
    fITSpid=0;
    fGeom = 0;
}
/**********************************************************************/
AliITSLoader::AliITSLoader(const Char_t *name,TFolder *topfolder): 
AliLoader(name,topfolder) {
  //ctor  
    AliDataLoader*  rawClustersDataLoader = new AliDataLoader(
        fDetectorName + ".RawCl.root",fgkDefaultRawClustersContainerName,
        "Raw Clusters"); 
    fDataLoaders->Add(rawClustersDataLoader);
    rawClustersDataLoader->SetEventFolder(fEventFolder);
    rawClustersDataLoader->SetFolder(GetDetectorDataFolder());

    AliDataLoader*  backTracksDataLoader =  new AliDataLoader(
        fDetectorName + ".BackTracks.root",fgkDefaultBackTracksContainerName,
        "Back Propagated Tracks");
    fDataLoaders->Add(backTracksDataLoader);
    backTracksDataLoader->SetEventFolder(fEventFolder);
    backTracksDataLoader->SetFolder(GetDetectorDataFolder());

    AliDataLoader* vertexDataLoader = new AliDataLoader(
        fDetectorName + ".Vertex.root",fgkDefaultVerticesContainerName,
        "Primary Vertices","O");
    fDataLoaders->Add(vertexDataLoader);
    vertexDataLoader->SetEventFolder(fEventFolder);
    vertexDataLoader->SetFolder(GetDetectorDataFolder());

    AliDataLoader* v0DataLoader = new AliDataLoader(
        fDetectorName + ".V0.root",fgkDefaultV0ContainerName,"V0 Vertices");
    fDataLoaders->Add(v0DataLoader);
    v0DataLoader->SetEventFolder(fEventFolder);
    v0DataLoader->SetFolder(GetDetectorDataFolder());

    AliDataLoader* cascadeDataLoader = new AliDataLoader(
        fDetectorName + ".Cascade.root",fgkDefaultCascadeContainerName,
        "Cascades");
    fDataLoaders->Add(cascadeDataLoader);
    cascadeDataLoader->SetEventFolder(fEventFolder);
    cascadeDataLoader->SetFolder(GetDetectorDataFolder());
    fITSpid = 0;
    fGeom = 0;
}

//______________________________________________________________________
AliITSLoader::AliITSLoader(const AliITSLoader &ob) : AliLoader(ob) {
  // Copy constructor
  // Copies are not allowed. The method is protected to avoid misuse.
  Error("AliITSLoader","Copy constructor not allowed\n");
}

//______________________________________________________________________
AliITSLoader& AliITSLoader::operator=(const AliITSLoader& /* ob */){
  // Assignment operator
  // Assignment is not allowed. The method is protected to avoid misuse.
  Error("= operator","Assignment operator not allowed\n");
  return *this;
}

/**********************************************************************/
AliITSLoader::~AliITSLoader(){
    //destructor
    AliDataLoader* dl = 0;
    UnloadRawClusters();
    dl = GetRawClLoader();
    fDataLoaders->Remove(dl);

    UnloadBackTracks();
    dl = GetBackTracksDataLoader();
    fDataLoaders->Remove(dl);

    UnloadVertices();
    dl = GetVertexDataLoader();
    fDataLoaders->Remove(dl);

    UnloadV0s();
    dl = GetV0DataLoader();
    fDataLoaders->Remove(dl);

    UnloadCascades();
    dl = GetCascadeDataLoader();
    fDataLoaders->Remove(dl);
    if(fITSpid)delete fITSpid;
    if(fGeom)delete fGeom;
}
/*
//----------------------------------------------------------------------
AliITS* AliITSLoader::GetITS(){
    // Returns the pointer to the ITS, kept on the file. A short cut metthod
    // Inputs:
    //    none.
    // Outputs:
    //    none.
    // Returns:
    //    Returns a pointer to the ITS, if not found returns 0.
    AliITS *its;

    if(gAlice){
        its = dynamic_cast<AliITS*> (gAlice->GetDetector(
            GetDetectorName().Data()));
        if(its) return its;
    } // end if gAlice
    AliRunLoader *rl=0;
    rl = GetRunLoader();
    if(!rl) return 0;
    AliRun *ar=0;
    ar = rl->GetAliRun();
    if(!ar) return 0;
    its = dynamic_cast<AliITS*> (ar->GetDetector(GetDetectorName().Data()));
    return its;
}
//----------------------------------------------------------------------
void AliITSLoader::SetupDigits(AliITS *its){
    // Sets up to store ITS Digits in side AliITS::fDtype TObjArray
    // Inputs:
    //    AliITS *its  Pointer to the ITS
    // Outputs:
    //    none.
    // Return:
    //    none.

    its->SetTreeAddressD(TreeD());
}
*/
//----------------------------------------------------------------------
void AliITSLoader::SetupDigits(TObjArray *digPerDet,Int_t n,
                               const Char_t **digclass){
    // Sets up digPerDet to store ITS Digits.
    // Inputs:
    //    TObjArray *digPerDet   A pointer to a TObject Array size>=3.
    //    Int_t      n           The size of the TObjArray and digclass array
    //    Char_t     **digclass  Array of digit class names
    // Outputs:
    //    TObjArray *digPerDet   Setup and linked to the tree of digits
    // Return:
    //    none.
    Int_t i,m;
    TClonesArray *cl = 0;
    TTree *td = 0;
    TBranch *br = 0;
    Char_t branch[13];
    const Char_t *det[3] = {"SPD","SDD","SSD"};

    if(!digPerDet){
        Error("SetUpDigits","TObject Array digPerDet does not exist");
        return;
    } // end if
    m = digPerDet->GetSize();
    if(m<n){
        Error("SetUpDigits","TObject Array digPerDet=%p must have a size"
              " at least that of n=%d",digPerDet,n);
    } // end if
    if(m<3){
        Error("SetUpDigits","TObject Array digPerDet=%p must have a size >2",
              digPerDet);
        return;
    } // end if
    td = TreeD();
    for(i=0;i<n;i++){
        if(digPerDet->At(i)==0){ // set up TClones Array
            digPerDet->AddAt(new TClonesArray(digclass[i],1000),i);
            if(n==3) sprintf(branch,"ITSDigits%s",det[i]);
            else     sprintf(branch,"ITSDigits%d",i+1);
            br = td->GetBranch(branch);
            br->SetAddress(&((*digPerDet)[i]));
            continue; // do next one.
        } // end if
        cl =  dynamic_cast<TClonesArray*> (digPerDet->At(i));
        if(!cl && digPerDet->At(i)!=0){  // not a TClonesArray
            Error("SetUpDigits","TObject Array digPerDet-At(%d)=%p must be "
                  "zeroed or filled with TClonesArrays",i,digPerDet);
            return;
        } // end if
        if(!(cl->GetClass()->GetBaseClass(AliITSdigit::Class()))){
            Error("SetUPDigits","TClones array at digPerDet[%d}=%p must be"
                  "derived from AliITSdigit",i,digPerDet->At(i));
        } // end if
        cl->Clear();
        if(n==3) sprintf(branch,"ITSDigits%s",det[i]);
        else     sprintf(branch,"ITSDigits%d",i+1);
        br = td->GetBranch(branch);
        br->SetAddress(&((*digPerDet)[i]));
        continue;
    } // end for i
}
//---------------------------------------------------------------------
AliITSdigit * AliITSLoader::GetDigit(TObjArray *digPerDet,Int_t module,
                                     Int_t digit){
    // Gets the digit for for a specific detector type and module.
    // To be used in conjustion with Setupdigits(AliITS *its).
    // Inputs:
    //   TObjArray *digPereDet    Pointer to the Array of digits
    //   Int_t      module        Module number
    //   Int_t      digit         Digit number
    // Outputs:
    //   none.
    // Return:
    //   returns the pointer to the digit. if zero then last digit for that
    //   module.

    if(digPerDet==0){
        Error("GetDigit","digPerDet=%p, module=%d, digit=%d",
              digPerDet,module,digit);
        return 0;
    } // end if
    return 0;
}
/*
//---------------------------------------------------------------------
AliITSdigit * AliITSLoader::GetDigit(AliITS *its,Int_t module,Int_t digit){
    // Gets the digit for for a specific detector type and module.
    // To be used in conjustion with Setupdigits(AliITS *its).
    // Inputs:
    //   AliITS *its    Pointer to the ITS
    //   Int_t  module  Module number
    //   Int_t digit    Digit number
    // Outputs:
    //   none.
    // Return:
    //   returns the pointer to the digit. if zero then last digit for that
    //   module.
    //AliITSDetType *idtype;
    AliITSgeom *geom = its->GetITSgeom();
    Int_t idet = geom->GetModuleType(module);
    TClonesArray *digits;
 
    its->ResetDigits();
    TreeD()->GetEvent(module);
    digits = its->DigitsAddress(idet);
    if(digit>-1 && digit<digits->GetEntriesFast()){ // if in range.
        return (AliITSdigit*) digits->At(digit);
    } // end if
    return 0;
}
*/
//----------------------------------------------------------------------
void AliITSLoader::MakeTree(Option_t *opt){
    // invokes AliLoader::MakeTree + specific ITS tree(s)
    // Valid options: H,S,D,R,T and C (C=raw clusters)
    AliLoader::MakeTree(opt);
    const char *oC = strstr(opt,"C");
    if (oC) MakeRawClustersContainer();

    const char *oB = strstr(opt,"B");
    if (oB) MakeBackTracksContainer();

    const char *oV0 = strstr(opt,"V0");
    if (oV0) MakeV0Container();

    const char *oX = strstr(opt,"X");
    if (oX) MakeCascadeContainer();
}

//----------------------------------------------------------------------
AliITSgeom* AliITSLoader::GetITSgeom(Bool_t force) {
  // retrieves the ITS geometry from file
  if(fGeom && !force)return fGeom;
  if(fGeom && force){
    delete fGeom;
    fGeom = 0;
  }
  AliRunLoader *runLoader = GetRunLoader();
  if (!runLoader->GetAliRun()) runLoader->LoadgAlice();
  if (!runLoader->GetAliRun()) {
    Error("GetITSgeom", "couldn't get AliRun object");
    return NULL;
  }
  
  TDirectory *curdir = gDirectory;
  runLoader->CdGAFile();
  fGeom = (AliITSgeom*)gDirectory->Get("AliITSgeom");
  curdir->cd();
  if(!fGeom){
    Error("GetITSgeom","no ITS geometry available");
    return NULL;
  }
  
  return fGeom;
}
Commit	Line	Data
aacedc3e	1	#include "AliITSdigit.h"
88cb7938	2	#include "AliITSLoader.h"
7d62fb64	3	#include "AliRunLoader.h"
88cb7938	4
aacedc3e	5	///////////////////////////////////////////////////////////////////////////
eeac5f9f	6	// Loader for ITS
	7	// it manages the I/O for:
	8	// raw clusters, primary vertices
	9	// V0 and cascade
	10	// and tracks propagated to the origin
aacedc3e	11	//////////////////////////////////////////////////////////////////////////
88cb7938	12	const TString AliITSLoader::fgkDefaultRawClustersContainerName = "TreeC";
	13	const TString AliITSLoader::fgkDefaultBackTracksContainerName = "TreeB";
	14	const TString AliITSLoader::fgkDefaultVerticesContainerName = "Vertex";
566abf75	15	const TString AliITSLoader::fgkDefaultV0ContainerName = "V0";
566abf75	16	const TString AliITSLoader::fgkDefaultCascadeContainerName = "Cascade";
88cb7938	17	ClassImp(AliITSLoader)
88cb7938	18
aacedc3e	19	/**********************************************************************/
eeac5f9f	20	AliITSLoader::AliITSLoader():AliLoader(){
eeac5f9f	21	// Default constructor
e62c1aea	22	fITSpid = 0;
8e50d897	23	fGeom = 0;
aacedc3e	24	}
	25	/*********************************************************************/
	26	AliITSLoader::AliITSLoader(const Char_t name,const Char_t topfoldername):
	27	AliLoader(name,topfoldername){
	28	//ctor
	29	AliDataLoader* rawClustersDataLoader = new AliDataLoader(
	30	fDetectorName + ".RawCl.root",fgkDefaultRawClustersContainerName,
	31	"Raw Clusters");
	32	fDataLoaders->Add(rawClustersDataLoader);
	33	rawClustersDataLoader->SetEventFolder(fEventFolder);
	34	rawClustersDataLoader->SetFolder(GetDetectorDataFolder());
	35
	36	AliDataLoader* backTracksDataLoader = new AliDataLoader(
	37	fDetectorName + ".BackTracks.root",fgkDefaultBackTracksContainerName,
	38	"Back Propagated Tracks");
	39	fDataLoaders->Add(backTracksDataLoader);
	40	backTracksDataLoader->SetEventFolder(fEventFolder);
	41	backTracksDataLoader->SetFolder(GetDetectorDataFolder());
eeac5f9f	42
aacedc3e	43	AliDataLoader* vertexDataLoader = new AliDataLoader(
	44	fDetectorName + ".Vertex.root",fgkDefaultVerticesContainerName,
	45	"Primary Vertices","O");
	46	fDataLoaders->Add(vertexDataLoader);
	47	vertexDataLoader->SetEventFolder(fEventFolder);
	48	vertexDataLoader->SetFolder(GetDetectorDataFolder());
	49
	50	AliDataLoader* v0DataLoader = new AliDataLoader(
	51	fDetectorName + ".V0s.root",fgkDefaultV0ContainerName,"V0 Vertices");
	52	fDataLoaders->Add(v0DataLoader);
	53	v0DataLoader->SetEventFolder(fEventFolder);
	54	v0DataLoader->SetFolder(GetDetectorDataFolder());
	55
	56	AliDataLoader* cascadeDataLoader = new AliDataLoader(
	57	fDetectorName + ".Cascades.root",fgkDefaultCascadeContainerName,
	58	"Cascades");
	59	fDataLoaders->Add(cascadeDataLoader);
	60	cascadeDataLoader->SetEventFolder(fEventFolder);
	61	cascadeDataLoader->SetFolder(GetDetectorDataFolder());
e62c1aea	62	fITSpid=0;
8e50d897	63	fGeom = 0;
eeac5f9f	64	}
aacedc3e	65	/**********************************************************************/
	66	AliITSLoader::AliITSLoader(const Char_t name,TFolder topfolder):
	67	AliLoader(name,topfolder) {
	68	//ctor
	69	AliDataLoader* rawClustersDataLoader = new AliDataLoader(
	70	fDetectorName + ".RawCl.root",fgkDefaultRawClustersContainerName,
	71	"Raw Clusters");
	72	fDataLoaders->Add(rawClustersDataLoader);
	73	rawClustersDataLoader->SetEventFolder(fEventFolder);
	74	rawClustersDataLoader->SetFolder(GetDetectorDataFolder());
eeac5f9f	75
aacedc3e	76	AliDataLoader* backTracksDataLoader = new AliDataLoader(
	77	fDetectorName + ".BackTracks.root",fgkDefaultBackTracksContainerName,
	78	"Back Propagated Tracks");
	79	fDataLoaders->Add(backTracksDataLoader);
	80	backTracksDataLoader->SetEventFolder(fEventFolder);
	81	backTracksDataLoader->SetFolder(GetDetectorDataFolder());
	82
	83	AliDataLoader* vertexDataLoader = new AliDataLoader(
	84	fDetectorName + ".Vertex.root",fgkDefaultVerticesContainerName,
	85	"Primary Vertices","O");
	86	fDataLoaders->Add(vertexDataLoader);
	87	vertexDataLoader->SetEventFolder(fEventFolder);
	88	vertexDataLoader->SetFolder(GetDetectorDataFolder());
	89
	90	AliDataLoader* v0DataLoader = new AliDataLoader(
	91	fDetectorName + ".V0.root",fgkDefaultV0ContainerName,"V0 Vertices");
	92	fDataLoaders->Add(v0DataLoader);
	93	v0DataLoader->SetEventFolder(fEventFolder);
	94	v0DataLoader->SetFolder(GetDetectorDataFolder());
	95
	96	AliDataLoader* cascadeDataLoader = new AliDataLoader(
	97	fDetectorName + ".Cascade.root",fgkDefaultCascadeContainerName,
	98	"Cascades");
	99	fDataLoaders->Add(cascadeDataLoader);
	100	cascadeDataLoader->SetEventFolder(fEventFolder);
	101	cascadeDataLoader->SetFolder(GetDetectorDataFolder());
8e50d897	102	fITSpid = 0;
8e50d897	103	fGeom = 0;
88cb7938	104	}
e62c1aea	105
	106	//______________________________________________________________________
	107	AliITSLoader::AliITSLoader(const AliITSLoader &ob) : AliLoader(ob) {
	108	// Copy constructor
	109	// Copies are not allowed. The method is protected to avoid misuse.
	110	Error("AliITSLoader","Copy constructor not allowed\n");
	111	}
	112
	113	//______________________________________________________________________
	114	AliITSLoader& AliITSLoader::operator=(const AliITSLoader& /* ob */){
	115	// Assignment operator
	116	// Assignment is not allowed. The method is protected to avoid misuse.
	117	Error("= operator","Assignment operator not allowed\n");
	118	return *this;
	119	}
	120
aacedc3e	121	/**********************************************************************/
	122	AliITSLoader::~AliITSLoader(){
	123	//destructor
	124	AliDataLoader* dl = 0;
	125	UnloadRawClusters();
	126	dl = GetRawClLoader();
	127	fDataLoaders->Remove(dl);
88cb7938	128
aacedc3e	129	UnloadBackTracks();
	130	dl = GetBackTracksDataLoader();
	131	fDataLoaders->Remove(dl);
	132
	133	UnloadVertices();
	134	dl = GetVertexDataLoader();
	135	fDataLoaders->Remove(dl);
	136
	137	UnloadV0s();
	138	dl = GetV0DataLoader();
	139	fDataLoaders->Remove(dl);
	140
	141	UnloadCascades();
	142	dl = GetCascadeDataLoader();
	143	fDataLoaders->Remove(dl);
e62c1aea	144	if(fITSpid)delete fITSpid;
8e50d897	145	if(fGeom)delete fGeom;
88cb7938	146	}
7d62fb64	147	/*
aacedc3e	148	//----------------------------------------------------------------------
	149	AliITS* AliITSLoader::GetITS(){
	150	// Returns the pointer to the ITS, kept on the file. A short cut metthod
	151	// Inputs:
	152	// none.
	153	// Outputs:
	154	// none.
	155	// Returns:
	156	// Returns a pointer to the ITS, if not found returns 0.
	157	AliITS *its;
566abf75	158
aacedc3e	159	if(gAlice){
	160	its = dynamic_cast<AliITS*> (gAlice->GetDetector(
	161	GetDetectorName().Data()));
	162	if(its) return its;
	163	} // end if gAlice
	164	AliRunLoader *rl=0;
	165	rl = GetRunLoader();
	166	if(!rl) return 0;
	167	AliRun *ar=0;
	168	ar = rl->GetAliRun();
	169	if(!ar) return 0;
	170	its = dynamic_cast<AliITS*> (ar->GetDetector(GetDetectorName().Data()));
	171	return its;
88cb7938	172	}
aacedc3e	173	//----------------------------------------------------------------------
	174	void AliITSLoader::SetupDigits(AliITS *its){
	175	// Sets up to store ITS Digits in side AliITS::fDtype TObjArray
	176	// Inputs:
	177	// AliITS *its Pointer to the ITS
	178	// Outputs:
	179	// none.
	180	// Return:
	181	// none.
88cb7938	182
aacedc3e	183	its->SetTreeAddressD(TreeD());
aacedc3e	184	}
7d62fb64	185	*/
aacedc3e	186	//----------------------------------------------------------------------
	187	void AliITSLoader::SetupDigits(TObjArray *digPerDet,Int_t n,
	188	const Char_t **digclass){
	189	// Sets up digPerDet to store ITS Digits.
	190	// Inputs:
	191	// TObjArray *digPerDet A pointer to a TObject Array size>=3.
	192	// Int_t n The size of the TObjArray and digclass array
	193	// Char_t **digclass Array of digit class names
	194	// Outputs:
	195	// TObjArray *digPerDet Setup and linked to the tree of digits
	196	// Return:
	197	// none.
	198	Int_t i,m;
	199	TClonesArray *cl = 0;
	200	TTree *td = 0;
	201	TBranch *br = 0;
	202	Char_t branch[13];
	203	const Char_t *det[3] = {"SPD","SDD","SSD"};
	204
	205	if(!digPerDet){
	206	Error("SetUpDigits","TObject Array digPerDet does not exist");
	207	return;
	208	} // end if
	209	m = digPerDet->GetSize();
	210	if(m<n){
	211	Error("SetUpDigits","TObject Array digPerDet=%p must have a size"
	212	" at least that of n=%d",digPerDet,n);
	213	} // end if
	214	if(m<3){
	215	Error("SetUpDigits","TObject Array digPerDet=%p must have a size >2",
	216	digPerDet);
	217	return;
	218	} // end if
	219	td = TreeD();
	220	for(i=0;i<n;i++){
	221	if(digPerDet->At(i)==0){ // set up TClones Array
	222	digPerDet->AddAt(new TClonesArray(digclass[i],1000),i);
	223	if(n==3) sprintf(branch,"ITSDigits%s",det[i]);
	224	else sprintf(branch,"ITSDigits%d",i+1);
	225	br = td->GetBranch(branch);
	226	br->SetAddress(&((*digPerDet)[i]));
	227	continue; // do next one.
	228	} // end if
	229	cl = dynamic_cast<TClonesArray*> (digPerDet->At(i));
	230	if(!cl && digPerDet->At(i)!=0){ // not a TClonesArray
	231	Error("SetUpDigits","TObject Array digPerDet-At(%d)=%p must be "
	232	"zeroed or filled with TClonesArrays",i,digPerDet);
	233	return;
	234	} // end if
	235	if(!(cl->GetClass()->GetBaseClass(AliITSdigit::Class()))){
	236	Error("SetUPDigits","TClones array at digPerDet[%d}=%p must be"
	237	"derived from AliITSdigit",i,digPerDet->At(i));
	238	} // end if
	239	cl->Clear();
	240	if(n==3) sprintf(branch,"ITSDigits%s",det[i]);
	241	else sprintf(branch,"ITSDigits%d",i+1);
	242	br = td->GetBranch(branch);
	243	br->SetAddress(&((*digPerDet)[i]));
	244	continue;
	245	} // end for i
	246	}
	247	//---------------------------------------------------------------------
	248	AliITSdigit * AliITSLoader::GetDigit(TObjArray *digPerDet,Int_t module,
	249	Int_t digit){
250	// Gets the digit for for a specific detector type and module.
251	// To be used in conjustion with Setupdigits(AliITS *its).
252	// Inputs:
253	// TObjArray *digPereDet Pointer to the Array of digits
254	// Int_t module Module number
255	// Int_t digit Digit number
256	// Outputs:
257	// none.
258	// Return:
259	// returns the pointer to the digit. if zero then last digit for that
260	// module.
261
262	if(digPerDet==0){
263	Error("GetDigit","digPerDet=%p, module=%d, digit=%d",
264	digPerDet,module,digit);
265	return 0;
266	} // end if
267	return 0;
268	}
7d62fb64	269	/*
aacedc3e	270	//---------------------------------------------------------------------
	271	AliITSdigit * AliITSLoader::GetDigit(AliITS *its,Int_t module,Int_t digit){
	272	// Gets the digit for for a specific detector type and module.
	273	// To be used in conjustion with Setupdigits(AliITS *its).
	274	// Inputs:
	275	// AliITS *its Pointer to the ITS
	276	// Int_t module Module number
	277	// Int_t digit Digit number
	278	// Outputs:
	279	// none.
	280	// Return:
	281	// returns the pointer to the digit. if zero then last digit for that
	282	// module.
	283	//AliITSDetType *idtype;
	284	AliITSgeom *geom = its->GetITSgeom();
	285	Int_t idet = geom->GetModuleType(module);
	286	TClonesArray *digits;
	287
	288	its->ResetDigits();
	289	TreeD()->GetEvent(module);
	290	digits = its->DigitsAddress(idet);
	291	if(digit>-1 && digit<digits->GetEntriesFast()){ // if in range.
	292	return (AliITSdigit*) digits->At(digit);
	293	} // end if
	294	return 0;
	295	}
7d62fb64	296	*/
aacedc3e	297	//----------------------------------------------------------------------
88cb7938	298	void AliITSLoader::MakeTree(Option_t *opt){
aacedc3e	299	// invokes AliLoader::MakeTree + specific ITS tree(s)
	300	// Valid options: H,S,D,R,T and C (C=raw clusters)
	301	AliLoader::MakeTree(opt);
	302	const char *oC = strstr(opt,"C");
	303	if (oC) MakeRawClustersContainer();
	304
	305	const char *oB = strstr(opt,"B");
	306	if (oB) MakeBackTracksContainer();
	307
	308	const char *oV0 = strstr(opt,"V0");
	309	if (oV0) MakeV0Container();
	310
	311	const char *oX = strstr(opt,"X");
	312	if (oX) MakeCascadeContainer();
88cb7938	313	}
7d62fb64	314
7d62fb64	315	//----------------------------------------------------------------------
8e50d897	316	AliITSgeom* AliITSLoader::GetITSgeom(Bool_t force) {
7d62fb64	317	// retrieves the ITS geometry from file
8e50d897	318	if(fGeom && !force)return fGeom;
	319	if(fGeom && force){
	320	delete fGeom;
	321	fGeom = 0;
	322	}
7d62fb64	323	AliRunLoader *runLoader = GetRunLoader();
8e50d897	324	if (!runLoader->GetAliRun()) runLoader->LoadgAlice();
7d62fb64	325	if (!runLoader->GetAliRun()) {
	326	Error("GetITSgeom", "couldn't get AliRun object");
	327	return NULL;
	328	}
	329
8e50d897	330	TDirectory *curdir = gDirectory;
7d62fb64	331	runLoader->CdGAFile();
8e50d897	332	fGeom = (AliITSgeom*)gDirectory->Get("AliITSgeom");
	333	curdir->cd();
	334	if(!fGeom){
7d62fb64	335	Error("GetITSgeom","no ITS geometry available");
	336	return NULL;
	337	}
	338
8e50d897	339	return fGeom;
7d62fb64	340	}
7d62fb64	341