// in an AliEvent.
// In this way the AliJet just represents a 'logical structure' for the
// physics analysis which can be embedded in e.g. an AliEvent or AliVertex.
+//
+// Note :
// Modifications made to the original tracks also affect the AliTrack objects
// which are stored in the AliJet.
+//
// b) SetTrackCopy(1).
// Of every 'added' track a private copy will be made of which the pointer
// will be stored.
// creating only one AliTrack instance in the main programme and using the
// AliTrack::Reset() and AliTrack parameter setting memberfunctions.
//
+// See also the documentation provided for the memberfunction SetOwner().
+//
// Coding example to make 2 jets j1 and j2.
// ----------------------------------------
// j1 contains the AliTracks t1 and t2
// tx->Reset();
// }
//
-// j1.Info();
-// j2.Info("sph");
+// j1.Data();
+// j2.Data("sph");
//
// Float_t e1=j1.GetEnergy();
// Float_t pnorm=j1->GetMomentum();
// Default constructor
// All variables initialised to 0
// Initial maximum number of tracks is set to the default value
+ Init();
+ Reset();
+ SetNtinit();
+}
+///////////////////////////////////////////////////////////////////////////
+void AliJet::Init()
+{
+// Initialisation of pointers etc...
fTracks=0;
fNtinit=0;
fTrackCopy=0;
- Reset();
- SetNtinit();
}
///////////////////////////////////////////////////////////////////////////
AliJet::AliJet(Int_t n)
{
// Create a jet to hold initially a maximum of n tracks
// All variables initialised to 0
- fTracks=0;
- fNtinit=0;
- fTrackCopy=0;
+ Init();
Reset();
if (n > 0)
{
// Default destructor
if (fTracks)
{
- if (fTrackCopy) fTracks->Delete();
delete fTracks;
fTracks=0;
}
}
///////////////////////////////////////////////////////////////////////////
+void AliJet::SetOwner(Bool_t own)
+{
+// Set ownership of all added objects.
+// The default parameter is own=kTRUE.
+//
+// Invokation of this memberfunction also sets all the copy modes
+// (e.g. TrackCopy & co.) according to the value of own.
+//
+// This function (with own=kTRUE) is particularly useful when reading data
+// from a tree/file, since Reset() will then actually remove all the
+// added objects from memory irrespective of the copy mode settings
+// during the tree/file creation process. In this way it provides a nice way
+// of preventing possible memory leaks in the reading/analysis process.
+//
+// In addition this memberfunction can also be used as a shortcut to set all
+// copy modes in one go during a tree/file creation process.
+// However, in this case the user has to take care to only set/change the
+// ownership (and copy mode) for empty objects (e.g. newly created objects
+// or after invokation of the Reset() memberfunction) otherwise it will
+// very likely result in inconsistent destructor behaviour.
+
+ Int_t mode=1;
+ if (!own) mode=0;
+ if (fTracks) fTracks->SetOwner(own);
+ fTrackCopy=mode;
+}
+///////////////////////////////////////////////////////////////////////////
+AliJet::AliJet(AliJet& j)
+{
+// Copy constructor
+ Init();
+ Reset();
+ SetNtinit();
+ SetTrackCopy(j.GetTrackCopy());
+ SetId(j.GetId());
+
+ AliTrack* tx=0;
+ for (Int_t i=1; i<=j.GetNtracks(); i++)
+ {
+ tx=j.GetTrack(i);
+ if (tx) AddTrack(tx);
+ }
+}
+///////////////////////////////////////////////////////////////////////////
void AliJet::SetNtinit(Int_t n)
{
// Set the initial maximum number of tracks for this jet
fNtmax=n;
if (fTracks)
{
- if (fTrackCopy) fTracks->Delete();
delete fTracks;
fTracks=0;
}
// The max. number of tracks is set to the initial value again
fNtrk=0;
fQ=0;
+ fUserId=0;
Double_t a[4]={0,0,0,0};
SetVector(a,"sph");
if (fNtinit > 0) SetNtinit(fNtinit);
}
///////////////////////////////////////////////////////////////////////////
-void AliJet::AddTrack(AliTrack& t)
+void AliJet::AddTrack(AliTrack& t,Int_t copy)
{
-// Add a track to the jet
+// Add a track to the jet.
+// Note : The optional parameter "copy" is for internal use only.
// In case the maximum number of tracks has been reached
// space will be extended to hold an additional amount of tracks as
-// was initially reserved
- if (!fTracks) fTracks=new TObjArray(fNtmax);
+// was initially reserved.
+ if (!fTracks)
+ {
+ fTracks=new TObjArray(fNtmax);
+ if (fTrackCopy) fTracks->SetOwner();
+ }
if (fNtrk == fNtmax) // Check if maximum track number is reached
{
fNtmax+=fNtinit;
// Add the track to this jet
fNtrk++;
- if (fTrackCopy)
+ if (fTrackCopy && copy)
{
- AliTrack* tx=new AliTrack(t);
- fTracks->Add(tx);
+ fTracks->Add(new AliTrack(t));
}
else
{
fTracks->Add(&t);
}
+
(*this)+=(Ali4Vector&)t;
fQ+=t.GetCharge();
+
}
///////////////////////////////////////////////////////////////////////////
-void AliJet::Info(TString f)
+void AliJet::Data(TString f)
{
// Provide jet information within the coordinate frame f
- cout << " *AliJet::Info* Invmass : " << GetInvmass() << " Charge : " << fQ
+ cout << " *AliJet::Data* Id : " << fUserId << " Invmass : " << GetInvmass() << " Charge : " << fQ
<< " Momentum : " << GetMomentum() << " Ntracks : " << fNtrk << endl;
cout << " ";
- Ali4Vector::Info(f);
+ Ali4Vector::Data(f);
}
///////////////////////////////////////////////////////////////////////////
void AliJet::List(TString f)
{
// Provide jet and primary track information within the coordinate frame f
- Info(f); // Information of the current jet
+ Data(f); // Information of the current jet
// The tracks of this jet
AliTrack* t;
{
cout << " ---Track no. " << it << endl;
cout << " ";
- t->Info(f);
+ t->Data(f);
}
else
{
{
// Provide jet and prim.+sec. track information within the coordinate frame f
- Info(f); // Information of the current jet
+ Data(f); // Information of the current jet
// The tracks of this jet
AliTrack* t;
}
}
///////////////////////////////////////////////////////////////////////////
+AliTrack* AliJet::GetIdTrack(Int_t id)
+{
+// Return the track with user identifier "id" of this jet
+ AliTrack* tx=0;
+ AliTrack* t=0;
+ if (!fTracks)
+ {
+ cout << " *AliJet*::GetIdTrack* No tracks present." << endl;
+ return 0;
+ }
+ else
+ {
+ for (Int_t i=0; i<fNtrk; i++)
+ {
+ tx=(AliTrack*)fTracks->At(i);
+ if (id == tx->GetId()) t=tx;
+ }
+ return t;
+ }
+}
+///////////////////////////////////////////////////////////////////////////
Double_t AliJet::GetPt()
{
// Provide trans. momentum value w.r.t. z-axis.
return fTrackCopy;
}
///////////////////////////////////////////////////////////////////////////
+void AliJet::SetId(Int_t id)
+{
+// Set a user defined identifier for this jet.
+ fUserId=id;
+}
+///////////////////////////////////////////////////////////////////////////
+Int_t AliJet::GetId()
+{
+// Provide the user defined identifier of this jet.
+ return fUserId;
+}
+///////////////////////////////////////////////////////////////////////////
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff