fClosest=0;
fParent=0;
fFit=0;
+ fTstamp=0;
}
///////////////////////////////////////////////////////////////////////////
AliTrack::~AliTrack()
{
// Destructor to delete memory allocated for decay tracks array.
-// This destructor automatically cleares the pointer of this AliTrack
-// from all the link slots of the related AliSignal objects.
-
+// This destructor automatically cleares all references to this AliTrack
+// from all the related AliSignal objects.
Int_t nsig=GetNsignals();
for (Int_t i=1; i<=nsig; i++)
{
AliSignal* s=GetSignal(i);
- if (s) s->ResetLinks(this);
+ if (s) s->RemoveTrack(*this,0);
}
if (fDecays)
}
if (fSignals)
{
- fSignals->Clear();
delete fSignals;
fSignals=0;
}
delete fFit;
fFit=0;
}
+ if (fTstamp)
+ {
+ delete fTstamp;
+ fTstamp=0;
+ }
}
///////////////////////////////////////////////////////////////////////////
AliTrack::AliTrack(const AliTrack& t) : TNamed(t),Ali4Vector(t)
if (t.fImpactYZ) fImpactYZ=new AliPositionObj(*(t.fImpactYZ));
if (t.fClosest) fClosest=new AliPositionObj(*(t.fClosest));
if (t.fFit) fFit=t.fFit->Clone();
+ if (t.fTstamp) fTstamp=new AliTimestamp(*(t.fTstamp));
fUserId=t.fUserId;
fChi2=t.fChi2;
fNdf=t.fNdf;
}
if (fSignals)
{
- fSignals->Clear();
delete fSignals;
fSignals=0;
}
delete fFit;
fFit=0;
}
+ if (fTstamp)
+ {
+ delete fTstamp;
+ fTstamp=0;
+ }
}
///////////////////////////////////////////////////////////////////////////
void AliTrack::Set3Momentum(Ali3Vector& p)
fQ=q;
}
///////////////////////////////////////////////////////////////////////////
-void AliTrack::Data(TString f)
+void AliTrack::Data(TString f,TString u)
{
// Provide track information within the coordinate frame f
+//
+// The string argument "u" allows to choose between different angular units
+// in case e.g. a spherical frame is selected.
+// u = "rad" : angles provided in radians
+// "deg" : angles provided in degrees
+//
+// The defaults are f="car" and u="rad".
+
Double_t m=GetMass();
Double_t dm=GetResultError();
const char* name=GetName();
if (strlen(name)) cout << " Name : " << name;
if (strlen(title)) cout << " Title : " << title;
cout << endl;
+ if (fTstamp) fTstamp->Date(1);
cout << " Id : " << fUserId << " Code : " << fCode
<< " m : " << m << " dm : " << dm << " Charge : " << fQ
<< " p : " << GetMomentum() << endl;
cout << " Fit details present in object of class " << fFit->ClassName() << endl;
if (fFit->InheritsFrom("AliSignal")) ((AliSignal*)fFit)->List(-1);
}
- Ali4Vector::Data(f);
+ Ali4Vector::Data(f,u);
}
///////////////////////////////////////////////////////////////////////////
-void AliTrack::List(TString f)
+void AliTrack::List(TString f,TString u)
{
// Provide current track and decay level 1 information within coordinate frame f
+//
+// The string argument "u" allows to choose between different angular units
+// in case e.g. a spherical frame is selected.
+// u = "rad" : angles provided in radians
+// "deg" : angles provided in degrees
+//
+// The defaults are f="car" and u="rad".
- Data(f); // Information of the current track
+ Data(f,u); // Information of the current track
+ if (fBegin) { cout << " Begin-point :"; fBegin->Data(f,u); }
+ if (fEnd) { cout << " End-point :"; fEnd->Data(f,u); }
+ if (fRef) { cout << " Ref-point :"; fRef->Data(f,u); }
// Decay products of this track
AliTrack* td;
if (td)
{
cout << " ---Level 1 sec. track no. " << id << endl;
- td->Data(f);
+ td->Data(f,u);
}
else
{
}
}
///////////////////////////////////////////////////////////////////////////
-void AliTrack::ListAll(TString f)
+void AliTrack::ListAll(TString f,TString u)
{
// Provide complete track and decay information within the coordinate frame f
+//
+// The string argument "u" allows to choose between different angular units
+// in case e.g. a spherical frame is selected.
+// u = "rad" : angles provided in radians
+// "deg" : angles provided in degrees
+//
+// The defaults are f="car" and u="rad".
- Data(f); // Information of the current track
- if (fBegin) { cout << " Begin-point :"; fBegin->Data(f); }
- if (fEnd) { cout << " End-point :"; fEnd->Data(f); }
- if (fRef) { cout << " Ref-point :"; fRef->Data(f); }
+ Data(f,u); // Information of the current track
+ if (fBegin) { cout << " Begin-point :"; fBegin->Data(f,u); }
+ if (fEnd) { cout << " End-point :"; fEnd->Data(f,u); }
+ if (fRef) { cout << " Ref-point :"; fRef->Data(f,u); }
Int_t nhyp=GetNhypotheses();
if (nhyp)
for (Int_t ih=1; ih<=nhyp; ih++)
{
AliTrack* tx=GetTrackHypothesis(ih);
- if (tx) tx->Data(f);
+ if (tx) tx->Data(f,u);
}
}
}
r=sx->GetPosition();
cout << " Position";
- r.Data(f);
+ r.Data(f,u);
}
}
}
AliTrack* t=this;
- Dumps(t,1,f); // Information of all decay products
+ Dumps(t,1,f,u); // Information of all decay products
}
//////////////////////////////////////////////////////////////////////////
-void AliTrack::Dumps(AliTrack* t,Int_t n,TString f)
+void AliTrack::Dumps(AliTrack* t,Int_t n,TString f,TString u)
{
// Recursively provide the info of all decay levels of this track
AliTrack* td;
if (td)
{
cout << " ---Level " << n << " sec. track no. " << id << endl;
- td->Data(f);
+ td->Data(f,u);
Int_t nhyp=td->GetNhypotheses();
if (nhyp)
for (Int_t ih=1; ih<=nhyp; ih++)
{
AliTrack* tx=td->GetTrackHypothesis(ih);
- if (tx) tx->Data(f);
+ if (tx) tx->Data(f,u);
}
}
for (Int_t is=1; is<=nsig; is++)
{
AliSignal* sx=td->GetSignal(is);
- if (sx) sx->Data(f);
+ if (sx) sx->Data(f,u);
}
}
// Go for next decay level of this decay track recursively
- Dumps(td,n+1,f);
+ Dumps(td,n+1,f,u);
}
else
{
}
}
///////////////////////////////////////////////////////////////////////////
-void AliTrack::AddSignal(AliSignal& s)
+void AliTrack::AddSignal(AliSignal& s,Int_t mode)
{
// Relate an AliSignal object to this track.
+//
+// mode = 0 : Only the reference to the specified signal is stored in
+// the current track, without storing the (backward) reference
+// to this track into the AliSignal structure.
+// 1 : The (backward) reference to the current track is also automatically
+// stored into the AliSignal (or derived) object specified in the
+// input argument.
+//
+// The default is mode=0.
+
if (!fSignals) fSignals=new TObjArray(1);
// Check if this signal is already stored for this track
}
fSignals->Add(&s);
+ if (mode==1) s.AddTrack(*this,0);
}
///////////////////////////////////////////////////////////////////////////
-void AliTrack::RemoveSignal(AliSignal& s)
+void AliTrack::RemoveSignal(AliSignal& s,Int_t mode)
{
// Remove related AliSignal object from this track.
+//
+// mode = 0 : Only the reference to the specified signal is removed from
+// the current track, without removing the (backward) reference(s)
+// to this track from the AliSignal structure.
+// 1 : The (backward) reference(s) to the current track are also automatically
+// removed from the AliSignal (or derived) object specified in the
+// input argument.
+//
+// The default is mode=1.
+
if (fSignals)
{
AliSignal* test=(AliSignal*)fSignals->Remove(&s);
if (test) fSignals->Compress();
}
+ if (mode==1) s.RemoveTrack(*this,0);
}
///////////////////////////////////////////////////////////////////////////
-void AliTrack::RemoveSignals()
+void AliTrack::RemoveSignals(Int_t mode)
{
// Remove all related AliSignal objects from this track.
- if (fSignals)
+//
+// mode = 0 : All signal references are removed from the current track,
+// without removing the (backward) references to this track from
+// the corresponding AliSignal objects.
+// 1 : The (backward) references to the current track are also automatically
+// removed from the corresponding AliSignal (or derived) objects.
+//
+// The default is mode=1.
+
+ if (!fSignals) return;
+
+ Int_t ns=GetNsignals();
+ for (Int_t i=0; i<ns; i++)
{
- fSignals->Clear();
- delete fSignals;
- fSignals=0;
+ AliSignal* sx=(AliSignal*)fSignals->At(i);
+ if (sx && mode==1) sx->RemoveTrack(*this,0);
}
+
+ delete fSignals;
+ fSignals=0;
}
///////////////////////////////////////////////////////////////////////////
Int_t AliTrack::GetNsignals() const
void AliTrack::SetBeginPoint(AliPosition& p)
{
// Store the position of the track begin-point.
- if (!fBegin)
- {
- fBegin=new AliPositionObj(p);
- }
- else
- {
- fBegin->Load(p);
- }
+ if (fBegin) delete fBegin;
+ fBegin=new AliPositionObj(p);
}
///////////////////////////////////////////////////////////////////////////
AliPosition* AliTrack::GetBeginPoint()
void AliTrack::SetEndPoint(AliPosition& p)
{
// Store the position of the track end-point.
- if (!fEnd)
- {
- fEnd=new AliPositionObj(p);
- }
- else
- {
- fEnd->Load(p);
- }
+ if (fEnd) delete fEnd;
+ fEnd=new AliPositionObj(p);
}
///////////////////////////////////////////////////////////////////////////
AliPosition* AliTrack::GetEndPoint()
// 3-momentum vector components have been defined.
// This reference point is the preferable point to start track extrapolations
// etc... which are sensitive to the components of the 3-momentum vector.
- if (!fRef)
- {
- fRef=new AliPositionObj(p);
- }
- else
- {
- fRef->Load(p);
- }
+ if (fRef) delete fRef;
+ fRef=new AliPositionObj(p);
}
///////////////////////////////////////////////////////////////////////////
AliPosition* AliTrack::GetReferencePoint()
switch (axis)
{
case 1: // Impact-point in the plane X=0
- if (!fImpactYZ)
- {
- fImpactYZ=new AliPositionObj(p);
- }
- else
- {
- fImpactYZ->Load(p);
- }
+ if (fImpactYZ) delete fImpactYZ;
+ fImpactYZ=new AliPositionObj(p);
break;
case 2: // Impact-point in the plane Y=0
- if (!fImpactXZ)
- {
- fImpactXZ=new AliPositionObj(p);
- }
- else
- {
- fImpactXZ->Load(p);
- }
+ if (fImpactXZ) delete fImpactXZ;
+ fImpactXZ=new AliPositionObj(p);
break;
case 3: // Impact-point in the plane Z=0
- if (!fImpactXY)
- {
- fImpactXY=new AliPositionObj(p);
- }
- else
- {
- fImpactXY->Load(p);
- }
+ if (fImpactXY) delete fImpactXY;
+ fImpactXY=new AliPositionObj(p);
break;
default: // Unsupported axis
void AliTrack::SetClosestPoint(AliPosition& p)
{
// Set position p as the point of closest approach w.r.t. some reference
- if (!fClosest)
- {
- fClosest=new AliPositionObj(p);
- }
- else
- {
- fClosest->Load(p);
- }
+ if (fClosest) delete fClosest;
+ fClosest=new AliPositionObj(p);
}
///////////////////////////////////////////////////////////////////////////
AliPosition* AliTrack::GetClosestPoint()
return fFit;
}
///////////////////////////////////////////////////////////////////////////
+void AliTrack::SetTimestamp(AliTimestamp& t)
+{
+// Store the timestamp for this track.
+ if (fTstamp) delete fTstamp;
+ fTstamp=new AliTimestamp(t);
+}
+///////////////////////////////////////////////////////////////////////////
+AliTimestamp* AliTrack::GetTimestamp()
+{
+// Provide the timestamp of this track.
+ return fTstamp;
+}
+///////////////////////////////////////////////////////////////////////////
+void AliTrack::RemoveTimestamp()
+{
+// Remove the timestamp from this track.
+ if (fTstamp)
+ {
+ delete fTstamp;
+ fTstamp=0;
+ }
+}
+///////////////////////////////////////////////////////////////////////////
+Double_t AliTrack::GetDistance(AliPosition* p)
+{
+// Provide distance of the current track to the position p.
+// The error on the result can be obtained as usual by invoking
+// GetResultError() afterwards.
+//
+// The distance will be provided in the unit scale of the AliPosition p.
+// As such it is possible to obtain a correctly computed distance even in case
+// the track parameters have a different unit scale.
+// However, it is recommended to work always with one single unit scale.
+//
+// Note : In case of incomplete information, a distance value of -1 is
+// returned.
+
+ Double_t dist=-1.;
+ fDresult=0.;
+
+ if (!p) return dist;
+
+ // Obtain a defined position on this track
+ AliPosition* rx=fRef;
+ if (!rx) rx=fBegin;
+ if (!rx) rx=fEnd;
+
+ if (!rx) return dist;
+
+ Ali3Vector p1=Get3Momentum();
+
+ if (p1.GetNorm() <= 0.) return dist;
+
+ Ali3Vector r0=(Ali3Vector)(*rx);
+
+ Float_t tscale=rx->GetUnitScale();
+ Float_t pscale=p->GetUnitScale();
+ if ((tscale/pscale > 1.1) || (pscale/tscale > 1.1)) r0=r0*(tscale/pscale);
+
+ // Obtain the direction unit vector of this track
+ Double_t vec[3];
+ Double_t err[3];
+ p1.GetVector(vec,"sph");
+ p1.GetErrors(err,"sph");
+ vec[0]=1.;
+ err[0]=0.;
+ p1.SetVector(vec,"sph");
+ p1.SetErrors(err,"sph");
+
+ Ali3Vector q=(Ali3Vector)(*p);
+ Ali3Vector r=q-r0;
+ Ali3Vector d=r.Cross(p1);
+ dist=d.GetNorm();
+ fDresult=d.GetResultError();
+ return dist;
+}
+///////////////////////////////////////////////////////////////////////////
+Double_t AliTrack::GetDistance(AliTrack* t)
+{
+// Provide distance of the current track to the track t.
+// The error on the result can be obtained as usual by invoking
+// GetResultError() afterwards.
+//
+// The distance will be provided in the unit scale of the current track.
+// As such it is possible to obtain a correctly computed distance even in case
+// the track parameters have a different unit scale.
+// This implies that in such cases the results of t1.GetDistance(t2) and
+// t2.GetDistance(t1) will be numerically different.
+// However, it is recommended to work always with one single unit scale.
+//
+// Note : In case of incomplete information, a distance value of -1 is
+// returned.
+
+ Double_t dist=-1.;
+ fDresult=0.;
+
+ if (!t) return dist;
+
+ // Obtain a defined position on this track
+ AliPosition* rx=fRef;
+ if (!rx) rx=fBegin;
+ if (!rx) rx=fEnd;
+
+ if (!rx) return dist;
+
+ // Obtain a defined position on track t
+ AliPosition* ry=t->GetReferencePoint();
+ if (!ry) ry=t->GetBeginPoint();
+ if (!ry) ry=t->GetEndPoint();
+
+ if (!ry) return dist;
+
+ Ali3Vector p1=Get3Momentum();
+ Ali3Vector p2=t->Get3Momentum();
+
+ if (p1.GetNorm() <= 0. || p2.GetNorm() <= 0.) return dist;
+
+ // The vector normal to both track directions
+ Ali3Vector n=p1.Cross(p2);
+
+ if (n.GetNorm() > 1.e-10)
+ {
+ // Normalise n to a unit vector
+ Double_t vec[3];
+ Double_t err[3];
+ n.GetVector(vec,"sph");
+ n.GetErrors(err,"sph");
+ vec[0]=1.;
+ err[0]=0.;
+ n.SetVector(vec,"sph");
+ n.SetErrors(err,"sph");
+ Ali3Vector r1=(Ali3Vector)(*rx);
+ Ali3Vector r2=(Ali3Vector)(*ry);
+ // Correct components of r2 in case of different unit scales
+ Float_t scale=rx->GetUnitScale();
+ Float_t tscale=ry->GetUnitScale();
+ if ((tscale/scale > 1.1) || (scale/tscale > 1.1)) r2=r2*(tscale/scale);
+ Ali3Vector r=r1-r2;
+ dist=fabs(r.Dot(n));
+ fDresult=r.GetResultError();
+ }
+ else // Parallel tracks
+ {
+ dist=t->GetDistance(rx);
+ fDresult=t->GetResultError();
+ }
+ return dist;
+}
+///////////////////////////////////////////////////////////////////////////
TObject* AliTrack::Clone(const char* name) const
{
// Make a deep copy of the current object and provide the pointer to the copy.
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff