-#include <iostream.h>
-#include <TROOT.h>
+//The purpose of this class is to permorm the ITS tracking.
+//The constructor has the task to inizialize some private members.
+//The method DoTracking is written to be called by a macro. It gets the event number, the minimum and maximum
+//order number of TPC tracks that are to be tracked trough the ITS, and the file where the recpoints are
+//registered.
+//The method Recursivetracking is a recursive function that performs the tracking trough the ITS
+//The method Intersection found the layer, ladder and detector whre the intersection take place and caluclate
+//the cohordinates of this intersection. It returns an integer that is 0 if the intersection has been found
+//successfully.
+//The two mwthods Kalmanfilter and kalmanfiltervert operate the kalmanfilter without and with the vertex
+//imposition respectively.
+//The authors thank Mariana Bondila to have help them to resolve some problems. July-2000
+
+
+#include <fstream.h>
#include <TMath.h>
-#include <TRandom.h>
#include <TBranch.h>
#include <TVector.h>
-#include <TClonesArray.h>
#include <TFile.h>
#include <TTree.h>
-
-
#include "TParticle.h"
#include "AliRun.h"
#include "AliITS.h"
+#include "AliITSsegmentationSSD.h"
#include "AliITSgeomSPD.h"
#include "AliITSgeomSDD.h"
#include "AliITSgeomSSD.h"
#include "AliITSgeom.h"
-#include "AliITSmodule.h"
#include "AliITSRecPoint.h"
-#include "AliMC.h"
+#include "stdlib.h"
#include "AliKalmanTrack.h"
#include "AliMagF.h"
-
-
-#include "AliITSRad.h"
-#include "AliITStrack.h"
-#include "AliITSiotrack.h"
-#include "AliITStracking.h"
-#include "../TPC/AliTPC.h"
-#include "../TPC/AliTPCParam.h"
+#include "AliITSTrackV1.h"
+#include "AliITSIOTrack.h"
+#include "AliITSRad.h"
#include "../TPC/AliTPCtracker.h"
-
-#include "AliITSgeoinfo.h"
#include "AliITSTrackerV1.h"
-
ClassImp(AliITSTrackerV1)
//________________________________________________________________
-AliITSTrackerV1::AliITSTrackerV1(AliITS* IITTSS) {
-//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
-// default constructor
- ITS = IITTSS;
-
-}
-
-//________________________________________________________________
-
-AliITStrack AliITSTrackerV1::Tracking(AliITStrack &track, AliITStrack *reference,TObjArray *fastpoints,
-Int_t **vettid, Bool_t flagvert, AliITSRad *rl, AliITSgeoinfo *geoinfo) {
-
-//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
-
- TList *list= new TList();
+AliITSTrackerV1::AliITSTrackerV1(AliITS* IITTSS, Bool_t flag) {
+//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
+// Class constructor. It does some initializations.
- AliITStrack tr(track);
-
- list->AddLast(&tr);
-
- Double_t Pt=(tr).GetPt();
- //cout << "\n Pt = " << Pt <<"\n"; //stampa
+ fITS = IITTSS;
+ fPtref=0.;
+ fflagvert=flag;
+ Int_t imax=200,jmax=450;
+ frl = new AliITSRad(imax,jmax);
- AliITStracking obj(list, reference, ITS, fastpoints,TMath::Abs(Pt),vettid, flagvert, rl, geoinfo); // nuova ITS
- list->Delete();
- delete list;
+}
- Int_t itot=-1;
- TVector VecTotLabref(18);
- Int_t lay, k;
- for(lay=5; lay>=0; lay--) {
- TVector VecLabref(3);
- VecLabref=(*reference).GetLabTrack(lay);
- Float_t ClustZ=(*reference).GetZclusterTrack( lay);
- for(k=0; k<3; k++){
- Int_t lpp=(Int_t)VecLabref(k);
- if(lpp>=0) {
- TParticle *p=(TParticle*) gAlice->Particle(lpp);
- Int_t pcode=p->GetPdgCode();
- if(pcode==11) VecLabref(k)=p->GetFirstMother();
- }
- itot++; VecTotLabref(itot)=VecLabref(k);
- if(VecLabref(k)==0. && ClustZ == 0.) VecTotLabref(itot) =-3.; }
- }
- Long_t labref;
- Int_t freq;
- (*reference).Search(VecTotLabref, labref, freq);
+AliITSTrackerV1::AliITSTrackerV1(const AliITSTrackerV1 &cobj) {
+//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
+// copy constructor
- //if(freq < 6) labref=-labref; // cinque - sei
- if(freq < 5) labref=-labref; // cinque - sei
- (*reference).SetLabel(labref);
-
- return *reference;
+ *fITS = *cobj.fITS;
+ *fresult = *cobj.fresult;
+ fPtref = cobj.fPtref;
+ //frecPoints = fITS->RecPoints();
+ //*frecPoints = *cobj.frecPoints;
+ **fvettid = **cobj.fvettid;
+ fflagvert = cobj.fflagvert;
+ Int_t imax=200,jmax=450;
+ frl = new AliITSRad(imax,jmax);
+ *frl = *cobj.frl;
+ Int_t i;
+ for(i=0; i<6; i++) {
+ fNlad[i] = cobj.fNlad[i];
+ fNdet[i] = cobj.fNdet[i];
+ fAvrad[i] = cobj.fAvrad[i];
+ fDetx[i] = cobj.fDetx[i];
+ fDetz[i] = cobj.fDetz[i];
+ }
}
+AliITSTrackerV1 &AliITSTrackerV1::operator=(AliITSTrackerV1 obj) {
+//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
+// assignement operator
+ *fITS = *obj.fITS;
+ *fresult = *obj.fresult;
+ fPtref = obj.fPtref;
+ **fvettid = **obj.fvettid;
+ fflagvert = obj.fflagvert;
+ Int_t imax=200,jmax=450;
+ frl = new AliITSRad(imax,jmax);
+ *frl = *obj.frl;
+ Int_t i;
+ for(i=0; i<6; i++) {
+ fNlad[i] = obj.fNlad[i];
+ fNdet[i] = obj.fNdet[i];
+ fAvrad[i] = obj.fAvrad[i];
+ fDetx[i] = obj.fDetx[i];
+ fDetz[i] = obj.fDetz[i];
+ }
-//________________________________________________________________
+ return *this;
+
+}
+//________________________________________________________________
-void AliITSTrackerV1::DoTracking(Int_t evNumber, Int_t min_t, Int_t max_t, TFile *file, Bool_t flagvert) {
-//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
-// ex macro for tracking ITS
- //Loop variables
+void AliITSTrackerV1::DoTracking(Int_t evNumber, Int_t minTr, Int_t maxTr, TFile *file) {
+//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
+//The method needs the event number, the minimum and maximum order number of TPC tracks that
+//are to be tracked trough the ITS, and the file where the recpoints are registered.
+//The method can be called by a macro. It preforms the tracking for all good TPC tracks
- Int_t i;
printf("begin DoTracking - file %p\n",file);
/////////////////////////////////////// gets information on geometry ///////////////////////////////////
- AliITSgeoinfo *geoinfo = new AliITSgeoinfo;
AliITSgeom *g1 = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom();
TVector det(9);
//cout<<" nlad ed ndet \n";
- for(i=0; i<6; i++) {
- geoinfo->Nlad[i]=g1->GetNladders(i+1);
- geoinfo->Ndet[i]=g1->GetNdetectors(i+1);
- //cout<<geoinfo->Nlad[i]<<" "<<geoinfo->Ndet[i]<<"\n";
+ Int_t ia; // fuori
+ for(ia=0; ia<6; ia++) {
+ fNlad[ia]=g1->GetNladders(ia+1);
+ fNdet[ia]=g1->GetNdetectors(ia+1);
+ //cout<<fNlad[i]<<" "<<fNdet[i]<<"\n";
}
//getchar();
//cout<<" raggio medio = ";
- for(i=0; i<6; i++) {
- g1->GetCenterThetaPhi(i+1,ll,dd,det);
- geoinfo->Avrad[i]=TMath::Sqrt(det(0)*det(0)+det(1)*det(1));
- //cout<<geoinfo->Avrad[i]<<" ";
+ Int_t ib; // fuori
+ for(ib=0; ib<6; ib++) {
+ g1->GetCenterThetaPhi(ib+1,ll,dd,det);
+ fAvrad[ib]=TMath::Sqrt(det(0)*det(0)+det(1)*det(1));
+ //cout<<fAvrad[ib]<<" ";
}
//cout<<"\n"; getchar();
- geoinfo->Detx[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDx();
- geoinfo->Detz[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDz();
+ fDetx[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDx();
+ fDetz[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDz();
- geoinfo->Detx[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDx();
- geoinfo->Detz[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDz();
+ fDetx[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDx();
+ fDetz[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDz();
- geoinfo->Detx[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDx();
- geoinfo->Detz[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDz();
+ fDetx[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDx();
+ fDetz[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDz();
- geoinfo->Detx[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDx();
- geoinfo->Detz[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDz();
+ fDetx[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDx();
+ fDetz[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDz();
- geoinfo->Detx[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDx();
- geoinfo->Detz[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDz();
+ fDetx[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDx();
+ fDetz[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDz();
- geoinfo->Detx[5] = ((AliITSgeomSSD*)(g1->GetShape(6, ll, dd)))->GetDx();
- geoinfo->Detz[5] = ((AliITSgeomSSD*)(g1->GetShape(6, ll, dd)))->GetDz();
+ fDetx[5] = ((AliITSgeomSSD*)(g1->GetShape(6, ll, dd)))->GetDx();
+ fDetz[5] = ((AliITSgeomSSD*)(g1->GetShape(6, ll, dd)))->GetDz();
//cout<<" Detx Detz\n";
- //for(Int_t la=0; la<6; la++) cout<<" "<<geoinfo->Detx[la]<<" "<<geoinfo->Detz[la]<<"\n";
+ //for(Int_t la=0; la<6; la++) cout<<" "<<fDetx[la]<<" "<<fDetz[la]<<"\n";
//getchar();
//////////////////////////////////////////////////////////////////////////////////////////////////////////
- //const char *pname="75x40_100x60";
- Int_t imax=200,jmax=450;
- AliITSRad *rl = new AliITSRad(imax,jmax);
- //cout<<" dopo costruttore AliITSRad\n"; getchar();
+ //Int_t imax=200,jmax=450;
+ //frl = new AliITSRad(imax,jmax);
+ //cout<<" dopo costruttore AliITSRad\n"; getchar();
struct GoodTrack {
Int_t lab,code;
AliKalmanTrack *kkprov;
kkprov->SetConvConst(100/0.299792458/0.2/gAlice->Field()->Factor());
+
TFile *cf=TFile::Open("AliTPCclusters.root");
AliTPCParam *digp= (AliTPCParam*)cf->Get("75x40_100x60");
if (!digp) { cerr<<"TPC parameters have not been found !\n"; getchar();}
AliTPCtracker *tracker = new AliTPCtracker(digp);
-
+
// Load clusters
tracker->LoadInnerSectors();
tracker->LoadOuterSectors();
TBranch *tbranch=tracktree->GetBranch("tracks");
Int_t nentr=(Int_t)tracktree->GetEntries();
Int_t kk;
- AliTPCtrack *iotracktpc=0;
+
+ AliTPCtrack *ioTrackTPC=0;
for (kk=0; kk<nentr; kk++) {
- iotracktpc=new AliTPCtrack;
- tbranch->SetAddress(&iotracktpc);
+ ioTrackTPC=new AliTPCtrack;
+ tbranch->SetAddress(&ioTrackTPC);
tracktree->GetEvent(kk);
- tracker->CookLabel(iotracktpc,0.1);
- tracks.AddLast(iotracktpc);
+ tracker->CookLabel(ioTrackTPC,0.1);
+ tracks.AddLast(ioTrackTPC);
}
delete tracker;
tf->Close();
Int_t nt = tracks.GetEntriesFast();
cerr<<"Number of found tracks "<<nt<<endl;
- TVector DataOut(9);
+ TVector dataOut(9);
Int_t kkk=0;
Double_t ptg=0.,pxg=0.,pyg=0.,pzg=0.;
////////////////////////////// good tracks definition in TPC ////////////////////////////////
ofstream out1 ("AliITSTrag.out");
+ Int_t i;
for (i=0; i<ngood; i++) out1 << gt[i].ptg << "\n";
out1.close();
TVector vec(5);
- TTree *TR=gAlice->TreeR();
- Int_t nent=(Int_t)TR->GetEntries();
- TClonesArray *recPoints = ITS->RecPoints();
+ TTree *tr=gAlice->TreeR();
+ Int_t nent=(Int_t)tr->GetEntries();
+ //TClonesArray *recPoints = RecPoints(); // nuova eliminata
+ //TClonesArray *recPoints = ITS->RecPoints(); // nuova
+ //TObjArray *
+ frecPoints = fITS->RecPoints(); // nuovissima tolta
Int_t numbpoints;
Int_t totalpoints=0;
Int_t *np = new Int_t[nent];
- Int_t **vettid = new Int_t* [nent];
+ //Int_t **
+ fvettid = new Int_t* [nent];
Int_t mod;
for (mod=0; mod<nent; mod++) {
- vettid[mod]=0;
- ITS->ResetRecPoints();
+ fvettid[mod]=0;
+ fITS->ResetRecPoints(); // nuova
//gAlice->TreeR()->GetEvent(mod+1); //first entry in TreeR is empty
gAlice->TreeR()->GetEvent(mod); //first entry in TreeR is empty
- numbpoints = recPoints->GetEntries();
+ numbpoints = frecPoints->GetEntries();
totalpoints+=numbpoints;
np[mod] = numbpoints;
//cout<<" mod = "<<mod<<" numbpoints = "<<numbpoints<<"\n"; getchar();
- vettid[mod] = new Int_t[numbpoints];
+ fvettid[mod] = new Int_t[numbpoints];
Int_t ii;
- for (ii=0;ii<numbpoints; ii++) *(vettid[mod]+ii)=0;
+ for (ii=0;ii<numbpoints; ii++) *(fvettid[mod]+ii)=0;
}
- AliTPCtrack *track=0;
+ AliTPCtrack *track=0; // sono qui
- if(min_t < 0) {min_t = 0; max_t = nt-1;}
+ if(minTr < 0) {minTr = 0; maxTr = nt-1;}
/*
///////////////////////////////// Definition of vertex end its error ////////////////////////////
TTree tracktree1("TreeT","Tree with ITS tracks");
- AliITSiotrack *iotrack=0;
- tracktree1.Branch("ITStracks","AliITSiotrack",&iotrack,32000,0);
+ AliITSIOTrack *ioTrack=0;
+ tracktree1.Branch("ITStracks","AliITSIOTrack",&ioTrack,32000,0);
ofstream out ("AliITSTra.out");
-
+
+
Int_t j;
- for (j=min_t; j<=max_t; j++) {
+ for (j=minTr; j<=maxTr; j++) {
track=(AliTPCtrack*)tracks.UncheckedAt(j);
Int_t flaglab=0;
if (!track) continue;
//cout<<" j flaglab = " <<j<<" "<<flaglab<<"\n"; getchar();
if (!flaglab) continue;
//cout<<" j = " <<j<<"\n"; getchar();
-
-
- ////// new propagation to the end of TPC //////////////
+
+ ////// propagation to the end of TPC //////////////
Double_t xk=77.415;
track->PropagateTo(xk, 28.94, 1.204e-3); //Ne
xk -=0.01;
track->PropagateTo(xk, 44.77, 1.71); //Tedlar
xk -=0.04;
- track->PropagateTo(xk, 44.86, 1.45); //Kevlar
+ track->PropagateTo(xk, 44.86, 1.45); //kevlar
xk -=2.0;
track->PropagateTo(xk, 41.28, 0.029); //Nomex
xk-=16;
xk -=0.01;
track->PropagateTo(xk, 44.77, 1.71); //Tedlar
xk -=0.04;
- track->PropagateTo(xk, 44.86, 1.45); //Kevlar
+ track->PropagateTo(xk, 44.86, 1.45); //kevlar
xk -=0.5;
track->PropagateTo(xk, 41.28, 0.029); //Nomex
- ///////////////////////////////////////////////////////////////
+ ///////////////////////////////////////////////////////////////
- ///////////////////////////////////////////////////////////////
- AliITStrack trackITS(*track);
- AliITStrack result(*track);
- AliITStrack primarytrack(*track);
-
-///////////////////////////////////////////////////////////////////////////////////////////////
- TVector Vgeant(3);
- Vgeant=result.GetVertex();
+
+ AliITSTrackV1 trackITS(*track);
+
+ if(fresult) delete fresult;
+ fresult = new AliITSTrackV1(trackITS);
+
+ AliITSTrackV1 primaryTrack(trackITS);
+
+
+ TVector vgeant(3);
+ vgeant=(*fresult).GetVertex();
- // Definition of Dv and Zv for vertex constraint
+ // Definition of dv and zv for vertex constraint
Double_t sigmaDv=0.0050; Double_t sigmaZv=0.010;
//Double_t sigmaDv=0.0015; Double_t sigmaZv=0.0015;
Double_t uniform= gRandom->Uniform();
else
signdv=1.;
- Double_t Vr=TMath::Sqrt(Vgeant(0)*Vgeant(0)+ Vgeant(1)*Vgeant(1));
- Double_t Dv=gRandom->Gaus(signdv*Vr,(Float_t)sigmaDv);
- Double_t Zv=gRandom->Gaus(Vgeant(2),(Float_t)sigmaZv);
+ Double_t vr=TMath::Sqrt(vgeant(0)*vgeant(0)+ vgeant(1)*vgeant(1));
+ Double_t dv=gRandom->Gaus(signdv*vr,(Float_t)sigmaDv);
+ Double_t zv=gRandom->Gaus(vgeant(2),(Float_t)sigmaZv);
- //cout<<" Dv e Zv = "<<Dv<<" "<<Zv<<"\n";
- trackITS.SetDv(Dv); trackITS.SetZv(Zv);
+ //cout<<" Dv e Zv = "<<dv<<" "<<zv<<"\n";
+ trackITS.SetDv(dv); trackITS.SetZv(zv);
trackITS.SetsigmaDv(sigmaDv); trackITS.SetsigmaZv(sigmaZv);
- result.SetDv(Dv); result.SetZv(Zv);
- result.SetsigmaDv(sigmaDv); result.SetsigmaZv(sigmaZv);
- primarytrack.SetDv(Dv); primarytrack.SetZv(Zv);
- primarytrack.SetsigmaDv(sigmaDv); primarytrack.SetsigmaZv(sigmaZv);
-
-/////////////////////////////////////////////////////////////////////////////////////////////////
+ (*fresult).SetDv(dv); (*fresult).SetZv(zv);
+ (*fresult).SetsigmaDv(sigmaDv); (*fresult).SetsigmaZv(sigmaZv);
+ primaryTrack.SetDv(dv); primaryTrack.SetZv(zv);
+ primaryTrack.SetsigmaDv(sigmaDv); primaryTrack.SetsigmaZv(sigmaZv);
- primarytrack.PrimaryTrack(rl);
- TVector d2=primarytrack.Getd2();
- TVector tgl2=primarytrack.Gettgl2();
- TVector dtgl=primarytrack.Getdtgl();
+ primaryTrack.PrimaryTrack(frl);
+ TVector d2=primaryTrack.Getd2();
+ TVector tgl2=primaryTrack.Gettgl2();
+ TVector dtgl=primaryTrack.Getdtgl();
trackITS.Setd2(d2); trackITS.Settgl2(tgl2); trackITS.Setdtgl(dtgl);
- result.Setd2(d2); result.Settgl2(tgl2); result.Setdtgl(dtgl);
+ (*fresult).Setd2(d2); (*fresult).Settgl2(tgl2); (*fresult).Setdtgl(dtgl);
/*
trackITS.SetVertex(vertex); trackITS.SetErrorVertex(ervertex);
- result.SetVertex(vertex); result.SetErrorVertex(ervertex);
+ (*result).SetVertex(vertex); (*result).SetErrorVertex(ervertex);
*/
-
- Tracking(trackITS,&result,recPoints,vettid, flagvert,rl,geoinfo);
-
+
+
+ TList *list= new TList();
+
+ list->AddLast(&trackITS);
+
+ fPtref=TMath::Abs( (trackITS).GetPt() );
+ //cout << "\n Pt = " << fPtref <<"\n"; //stampa
+
+ RecursiveTracking(list); // nuova ITS
+ list->Delete();
+ delete list;
+
+ Int_t itot=-1;
+ TVector vecTotLabRef(18);
+ Int_t lay, k;
+ for(lay=5; lay>=0; lay--) {
+ TVector vecLabRef(3);
+ vecLabRef=(*fresult).GetLabTrack(lay);
+ Float_t clustZ=(*fresult).GetZclusterTrack( lay);
+ for(k=0; k<3; k++){
+ Int_t lpp=(Int_t)vecLabRef(k);
+ if(lpp>=0) {
+ TParticle *p=(TParticle*) gAlice->Particle(lpp);
+ Int_t pcode=p->GetPdgCode();
+ if(pcode==11) vecLabRef(k)=p->GetFirstMother();
+ }
+ itot++; vecTotLabRef(itot)=vecLabRef(k);
+ if(vecLabRef(k)==0. && clustZ == 0.) vecTotLabRef(itot) =-3.; }
+ }
+ Long_t labref;
+ Int_t freq;
+ (*fresult).Search(vecTotLabRef, labref, freq);
+
+
+ //if(freq < 6) labref=-labref; // cinque - sei
+ if(freq < 5) labref=-labref; // cinque - sei
+ (*fresult).SetLabel(labref);
+
// cout<<" progressive track number = "<<j<<"\r";
// cout<<j<<"\r";
- Int_t NumofCluster=result.GetNumClust();
- // cout<<" progressive track number = "<<j<<"\n"; // stampa
- Long_t labITS=result.GetLabel();
- // cout << " ITS track label = " << labITS << "\n"; // stampa
+ Int_t numOfCluster=(*fresult).GetNumClust();
+ //cout<<" progressive track number = "<<j<<"\n"; // stampa
+ Long_t labITS=(*fresult).GetLabel();
+ //cout << " ITS track label = " << labITS << "\n"; // stampa
int lab=track->GetLabel();
//cout << " TPC track label = " << lab <<"\n"; // stampa
Double_t rbeam=3.;
- result.Propagation(rbeam);
+ (*fresult).Propagation(rbeam);
- Double_t C00,C10,C11,C20,C21,C22,C30,C31,C32,C33,C40,C41,C42,C43,C44;
- result.GetCElements(C00,C10,C11,C20,C21,C22,C30,C31,C32,C33,C40,C41,C42,C43,C44);
+ Double_t c00,c10,c11,c20,c21,c22,c30,c31,c32,c33,c40,c41,c42,c43,c44;
+ (*fresult).GetCElements(c00,c10,c11,c20,c21,c22,c30,c31,c32,c33,c40,c41,c42,c43,c44);
- Double_t pt=TMath::Abs(result.GetPt());
- Double_t Dr=result.GetD();
- Double_t Z=result.GetZ();
- Double_t tgl=result.GetTgl();
- Double_t C=result.GetC();
- Double_t Cy=C/2.;
- Double_t Dz=Z-(tgl/Cy)*TMath::ASin(result.arga(rbeam));
- Dz-=Vgeant(2);
+ Double_t pt=TMath::Abs((*fresult).GetPt());
+ Double_t dr=(*fresult).GetD();
+ Double_t z=(*fresult).GetZ();
+ Double_t tgl=(*fresult).GetTgl();
+ Double_t c=(*fresult).GetC();
+ Double_t cy=c/2.;
+ Double_t dz=z-(tgl/cy)*TMath::ASin((*fresult).Arga(rbeam));
+ dz-=vgeant(2);
- // cout<<" Dr e dz alla fine = "<<Dr<<" "<<Dz<<"\n"; getchar();
- Double_t phi=result.Getphi();
- Double_t phivertex = phi - TMath::ASin(result.argA(rbeam));
+ // cout<<" dr e dz alla fine = "<<dr<<" "<<dz<<"\n"; getchar();
+ Double_t phi=(*fresult).Getphi();
+ Double_t phivertex = phi - TMath::ASin((*fresult).ArgA(rbeam));
Double_t duepi=2.*TMath::Pi();
if(phivertex>duepi) phivertex-=duepi;
if(phivertex<0.) phivertex+=duepi;
- Double_t Dtot=TMath::Sqrt(Dr*Dr+Dz*Dz);
+ Double_t dtot=TMath::Sqrt(dr*dr+dz*dz);
//////////////////////////////////////////////////////////////////////////////////////////
Int_t idmodule,idpoint;
- if(NumofCluster >=5) { // cinque - sei
- //if(NumofCluster ==6) { // cinque - sei
+ if(numOfCluster >=5) { // cinque - sei
+ //if(numOfCluster ==6) { // cinque - sei
- AliITSiotrack outtrack;
+ AliITSIOTrack outTrack;
- iotrack=&outtrack;
+ ioTrack=&outTrack;
- iotrack->SetStatePhi(phi);
- iotrack->SetStateZ(Z);
- iotrack->SetStateD(Dr);
- iotrack->SetStateTgl(tgl);
- iotrack->SetStateC(C);
- Double_t radius=result.Getrtrack();
- iotrack->SetRadius(radius);
+ ioTrack->SetStatePhi(phi);
+ ioTrack->SetStateZ(z);
+ ioTrack->SetStateD(dr);
+ ioTrack->SetStateTgl(tgl);
+ ioTrack->SetStateC(c);
+ Double_t radius=(*fresult).Getrtrack();
+ ioTrack->SetRadius(radius);
Int_t charge;
- if(C>0.) charge=-1; else charge=1;
- iotrack->SetCharge(charge);
+ if(c>0.) charge=-1; else charge=1;
+ ioTrack->SetCharge(charge);
- iotrack->SetCovMatrix(C00,C10,C11,C20,C21,C22,C30,C31,C32,C33,C40,C41,C42,C43,C44);
+ ioTrack->SetCovMatrix(c00,c10,c11,c20,c21,c22,c30,c31,c32,c33,c40,c41,c42,c43,c44);
Double_t px=pt*TMath::Cos(phivertex);
Double_t py=pt*TMath::Sin(phivertex);
Double_t pz=pt*tgl;
- Double_t xtrack=Dr*TMath::Sin(phivertex);
- Double_t ytrack=Dr*TMath::Cos(phivertex);
- Double_t ztrack=Dz+Vgeant(2);
-
-
- iotrack->SetPx(px);
- iotrack->SetPy(py);
- iotrack->SetPz(pz);
- iotrack->SetX(xtrack);
- iotrack->SetY(ytrack);
- iotrack->SetZ(ztrack);
- iotrack->SetLabel(labITS);
+ Double_t xtrack=dr*TMath::Sin(phivertex);
+ Double_t ytrack=dr*TMath::Cos(phivertex);
+ Double_t ztrack=dz+vgeant(2);
+
+
+ ioTrack->SetPx(px);
+ ioTrack->SetPy(py);
+ ioTrack->SetPz(pz);
+ ioTrack->SetX(xtrack);
+ ioTrack->SetY(ytrack);
+ ioTrack->SetZ(ztrack);
+ ioTrack->SetLabel(labITS);
Int_t il;
for(il=0;il<6; il++){
- iotrack->SetIdPoint(il,result.GetIdPoint(il));
- iotrack->SetIdModule(il,result.GetIdModule(il));
+ ioTrack->SetIdPoint(il,(*fresult).GetIdPoint(il));
+ ioTrack->SetIdModule(il,(*fresult).GetIdModule(il));
}
tracktree1.Fill();
//cout<<" labITS = "<<labITS<<"\n";
- //cout<<" phi z Dr tgl C = "<<phi<<" "<<Z<<" "<<Dr<<" "<<tgl<<" "<<C<<"\n"; getchar();
+ //cout<<" phi z dr tgl c = "<<phi<<" "<<z<<" "<<dr<<" "<<tgl<<" "<<c<<"\n"; getchar();
- DataOut(kkk) = ptg; kkk++; DataOut(kkk)=labITS; kkk++; DataOut(kkk)=lab; kkk++;
+ dataOut(kkk) = ptg; kkk++; dataOut(kkk)=labITS; kkk++; dataOut(kkk)=lab; kkk++;
for (il=0;il<6;il++) {
- idpoint=result.GetIdPoint(il);
- idmodule=result.GetIdModule(il);
- *(vettid[idmodule]+idpoint)=1;
- iotrack->SetIdPoint(il,idpoint);
- iotrack->SetIdModule(il,idmodule);
+ idpoint=(*fresult).GetIdPoint(il);
+ idmodule=(*fresult).GetIdModule(il);
+ *(fvettid[idmodule]+idpoint)=1;
+ ioTrack->SetIdPoint(il,idpoint);
+ ioTrack->SetIdModule(il,idmodule);
}
+ // cout<<" +++++++++++++ pt e ptg = "<<pt<<" "<<ptg<<" ++++++++++\n";
+
+ ///////////////////////////////
Double_t difpt= (pt-ptg)/ptg*100.;
- DataOut(kkk)=difpt; kkk++;
+ dataOut(kkk)=difpt; kkk++;
Double_t lambdag=TMath::ATan(pzg/ptg);
Double_t lam=TMath::ATan(tgl);
Double_t diflam = (lam - lambdag)*1000.;
- DataOut(kkk) = diflam; kkk++;
+ dataOut(kkk) = diflam; kkk++;
Double_t phig=TMath::ATan2(pyg,pxg); if(phig<0) phig=2.*TMath::Pi()+phig;
Double_t phi=phivertex;
Double_t difphi = (phi - phig)*1000.;
- DataOut(kkk)=difphi; kkk++;
- DataOut(kkk)=Dtot*1.e4; kkk++;
- DataOut(kkk)=Dr*1.e4; kkk++;
- DataOut(kkk)=Dz*1.e4; kkk++;
+ dataOut(kkk)=difphi; kkk++;
+ dataOut(kkk)=dtot*1.e4; kkk++;
+ dataOut(kkk)=dr*1.e4; kkk++;
+ dataOut(kkk)=dz*1.e4; kkk++;
Int_t r;
- for (r=0; r<9; r++) { out<<DataOut(r)<<" ";}
+ for (r=0; r<9; r++) { out<<dataOut(r)<<" ";}
out<<"\n";
kkk=0;
- } // end if on NumofCluster
+ } // end if on numOfCluster
//gObjectTable->Print(); // stampa memoria
- } // end for (int j=min_t; j<=max_t; j++)
+ } // end for (int j=minTr; j<=maxTr; j++)
out.close();
-
+
static Bool_t first=kTRUE;
static TFile *tfile;
printf("delete vectors\n");
if(np) delete [] np;
- if(vettid) delete [] vettid;
+ if(fvettid) delete [] fvettid;
+ if(fresult) delete fresult;
+
+}
+
+
+
+void AliITSTrackerV1::RecursiveTracking(TList *trackITSlist) {
+
+/////////////////////// This function perform the recursive tracking in ITS detectors /////////////////////
+/////////////////////// reference is a pointer to the final best track /////////////////////
+//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
+// The authors thank Mariana Bondila to have help them to resolve some problems. July-2000
+
+ //Rlayer[0]=4.; Rlayer[1]=7.; Rlayer[2]=14.9; Rlayer[3]=23.8; Rlayer[4]=39.1; Rlayer[5]=43.6; //vecchio
+
+ Int_t index;
+ for(index =0; index<trackITSlist->GetSize(); index++) {
+ AliITSTrackV1 *trackITS = (AliITSTrackV1 *) trackITSlist->At(index);
+
+ if((*trackITS).GetLayer()==7) fresult->SetChi2(10.223e140);
+ // cout <<" Layer inizio = "<<(*trackITS).GetLayer()<<"\n";
+ // cout<<"fvtrack =" <<"\n";
+ // cout << (*trackITS)(0) << " "<<(*trackITS)(1)<<" "<<(*trackITS)(2)<<" "<<(*trackITS)(3)<<" "<<(*trackITS)(4)<<"\n";
+ // cout<< " rtrack = "<<(*trackITS).Getrtrack()<<"\n";
+ // cout<< " Pt = "<<(*trackITS).GetPt()<<"\n";
+ // getchar();
+ Double_t chi2Now, chi2Ref;
+ if((*trackITS).GetLayer()==1 ) {
+ chi2Now = trackITS->GetChi2();
+ Float_t numClustNow = trackITS->GetNumClust();
+ if(trackITS->GetNumClust()) chi2Now /= (Double_t )trackITS->GetNumClust();
+ chi2Ref = fresult->GetChi2();
+ Float_t numClustRef = fresult->GetNumClust();
+ if(fresult->GetNumClust()) chi2Ref /= (Double_t )fresult->GetNumClust();
+ //cout<<" chi2Now and chi2Ref = "<<chi2Now<<" "<<chi2Ref<<"\n";
+ if( numClustNow > numClustRef ) {*fresult = *trackITS;}
+ if((numClustNow == numClustRef )&& (chi2Now < chi2Ref)) {*fresult = *trackITS;}
+ continue;
+ }
+ Float_t numClustNow = trackITS->GetNumClust();
+ if(numClustNow) {
+ chi2Now = trackITS->GetChi2();
+ chi2Now/=numClustNow;
+ //cout<<" chi2Now = "<<chi2Now<<"\n";
+ /*
+ // if(Ptref > 0.6 && chi2Now > 20.) continue;
+ if(Ptref > 0.6 && chi2Now > 30.) continue;
+ if((Ptref <= 0.6 && Ptref>0.2)&& chi2Now > 15.) continue;
+ // if(chi2Now>5.) continue;
+ //if(chi2Now>15.) continue;
+ // if(Ptref <= 0.2 && chi2Now > 10.) continue;
+ if(Ptref <= 0.2 && chi2Now > 8.) continue;
+ */
+ if(fPtref > 1.0 && chi2Now > 30.) continue;
+ if((fPtref >= 0.6 && fPtref<=1.0) && chi2Now > 40.) continue;
+ if((fPtref <= 0.6 && fPtref>0.2)&& chi2Now > 40.) continue;
+ if(fPtref <= 0.2 && chi2Now > 8.) continue;
+ }
+
+ Int_t layerInit = (*trackITS).GetLayer();
+ Int_t layernew = layerInit - 2; // -1 for new layer, -1 for matrix index
+
+ //Int_t NLadder[]= {20, 40, 14, 22, 34, 38}; //vecchio
+ //Int_t NDetector[]= {4, 4, 6, 8, 23, 26}; //vecchio
+
+ TList listoftrack;
+ Int_t ladp, ladm, detp,detm,ladinters,detinters;
+ Int_t layerfin=layerInit-1;
+ Double_t rFin=fAvrad[layerfin-1];
+ // cout<<"Prima di intersection \n";
+
+ Int_t outinters=Intersection(*trackITS, rFin, layerfin, ladinters, detinters);
+
+ // cout<<" outinters = "<<outinters<<"\n";
+ // cout<<" Layer ladder detector intersection ="<<layerfin<<" "<<ladinters<<" "<<detinters<<"\n";
+ // cout << " phiinters zinters = "<<(*trackITS)(0) << " "<<(*trackITS)(1)<<"\n"; getchar();
+
+ if(outinters==-1) continue;
+
+ Int_t flaghit=0;
+ if(outinters==0){
+ TVector toucLad(9), toucDet(9);
+ Int_t lycur=layerfin;
+ ladp=ladinters+1;
+ ladm=ladinters-1;
+ if(ladm <= 0) ladm=fNlad[layerfin-1];
+ if(ladp > fNlad[layerfin-1]) ladp=1;
+ detp=detinters+1;
+ detm=detinters-1;
+ Int_t idetot=1;
+ toucLad(0)=ladinters; toucLad(1)=ladm; toucLad(2)=ladp;
+ toucLad(3)=ladinters; toucLad(4)=ladm; toucLad(5)=ladp;
+ toucLad(6)=ladinters; toucLad(7)=ladm; toucLad(8)=ladp;
+ toucDet(0)=detinters; toucDet(1)=detinters; toucDet(2)=detinters;
+ if(detm > 0 && detp <= fNdet[layerfin-1]) {
+ idetot=9;
+ toucDet(3)=detm; toucDet(4)=detm; toucDet(5)=detm;
+ toucDet(6)=detp; toucDet(7)=detp; toucDet(8)=detp;
+ }
+
+ if(detm > 0 && detp > fNdet[layerfin-1]) {
+ idetot=6;
+ toucDet(3)=detm; toucDet(4)=detm; toucDet(5)=detm;
+ }
+
+ if(detm <= 0 && detp <= fNdet[layerfin-1]) {
+ idetot=6;
+ toucDet(3)=detp; toucDet(4)=detp; toucDet(5)=detp;
+ }
+ Int_t iriv;
+ for (iriv=0; iriv<idetot; iriv++) { //for on detectors
+ //AliITSgeom *g1 = aliITS->GetITSgeom(); //vvecchia
+ AliITSgeom *g1 = fITS->GetITSgeom(); //nnuova
+ TVector ctf(9);
+ g1->GetCenterThetaPhi(layerInit-1,(Int_t)toucLad(iriv),(Int_t)toucDet(iriv),ctf);
+
+ // cout<<" layer, ladder, det, xo, yo, zo = "<<layerInit-1<<" "<<(Int_t)toucLad(iriv)<<
+ // " "<<(Int_t)toucDet(iriv)<<" "<<ctf(0)<<" "<<ctf(1)<<" "<<ctf(2)<< " "<<ctf(6)<<"\n"; getchar();
+
+ ////////////////////////////////////////////////////////////////////////////////////////////////
+
+ /*** Rec points sorted by module *****/
+ /**************************************/
+
+ Int_t index;
+ AliITSRecPoint *recp;
+ //AliITSgeom *geom = aliITS->GetITSgeom(); //vvecchia
+ AliITSgeom *geom = fITS->GetITSgeom(); //nnuova
+ index = geom->GetModuleIndex(lycur,toucLad(iriv),toucDet(iriv));
+ Int_t lay,lad,det;
+ geom->GetModuleId(index,lay,lad,det);
+ //aliITS->ResetRecPoints(); //vvecchia
+ fITS->ResetRecPoints(); //nnuova
+ //gAlice->TreeR()->GetEvent(index+1); //first entry in TreeR is empty
+ gAlice->TreeR()->GetEvent(index); //first entry in TreeR is empty
+
+ Int_t npoints=frecPoints->GetEntries();
+ Int_t *indlist=new Int_t[npoints+1];
+ Int_t counter=0;
+ Int_t ind;
+ for (ind=0; ind<=npoints; ind++) {
+ indlist[ind]=-1;
+ if (*(fvettid[index]+ind)==0) {
+ indlist[counter]=ind;
+ counter++;
+ }
+ }
+
+ ind=-1;
+
+ for(;;) {
+ ind++;
+ if(indlist[ind] < 0) recp=0;
+ else recp = (AliITSRecPoint*)frecPoints->UncheckedAt(indlist[ind]);
+
+ if((!recp) ) break;
+ TVector cluster(3),vecclust(9);
+ vecclust(6)=vecclust(7)=vecclust(8)=-1.;
+ Double_t sigma[2];
+ // set veclust in global
+ Float_t global[3], local[3];
+ local[0]=recp->GetX();
+ local[1]=0.;
+ local[2]= recp->GetZ();
+ //AliITSgeom *g1 = aliITS->GetITSgeom(); //vvecchia
+ AliITSgeom *g1 = fITS->GetITSgeom(); //nnuova
+ Int_t play = lycur;
+ Int_t plad = TMath::Nint(toucLad(iriv));
+ Int_t pdet = TMath::Nint(toucDet(iriv));
+ g1->LtoG(play,plad,pdet,local,global);
+
+ vecclust(0)=global[0];
+ vecclust(1)=global[1];
+ vecclust(2)=global[2];
+
+
+ vecclust(3) = (float)recp->fTracks[0];
+ vecclust(4) = (float)indlist[ind];
+ vecclust(5) = (float)index;
+ vecclust(6) = (float)recp->fTracks[0];
+ vecclust(7) = (float)recp->fTracks[1];
+ vecclust(8) = (float)recp->fTracks[2];
+
+ sigma[0] = (Double_t) recp->GetSigmaX2();
+ sigma[1] = (Double_t) recp->GetSigmaZ2();
+
+ //now we are in r,phi,z in global
+ cluster(0) = TMath::Sqrt(vecclust(0)*vecclust(0)+vecclust(1)*vecclust(1));//r hit
+ // cluster(1) = PhiDef(vecclust(0),vecclust(1)); // phi hit //vecchio
+ cluster(1) = TMath::ATan2(vecclust(1),vecclust(0)); if(cluster(1)<0.) cluster(1)+=2.*TMath::Pi(); //nuovo
+ cluster(2) = vecclust(2); // z hit
+
+ // cout<<" layer = "<<play<<"\n";
+ // cout<<" cluster prima = "<<vecclust(0)<<" "<<vecclust(1)<<" "
+ // <<vecclust(2)<<"\n"; getchar();
+ //cluster(1)= cluster(1)-trackITS->Getalphaprov(); //provvisorio;
+ //if(cluster(1)<0.) cluster(1)+=2.*TMath::Pi(); //provvisorio
+ //cout<<" cluster(1) dopo = "<<cluster(1)<< " alphaprov = "<<trackITS->Getalphaprov()<<"\n";
+ Float_t sigmatotphi, sigmatotz;
+
+ //Float_t epsphi=3.2, epsz=3.;
+ Float_t epsphi=5.0, epsz=5.0;
+ if(fPtref<0.2) {epsphi=3.; epsz=3.;}
+
+ Double_t rTrack=(*trackITS).Getrtrack();
+ Double_t sigmaphi=sigma[0]/(rTrack*rTrack);
+ sigmatotphi=epsphi*TMath::Sqrt(sigmaphi + (*trackITS).GetSigmaphi());
+
+ sigmatotz=epsz*TMath::Sqrt(sigma[1] + (*trackITS).GetSigmaZ());
+ //cout<<"cluster e sigmatotphi e track = "<<cluster(0)<<" "<<cluster(1)<<" "<<sigmatotphi<<" "<<vecclust(3)<<"\n";
+ //if(vecclust(3)==481) getchar();
+ if(cluster(1)<6. && (*trackITS).Getphi()>6.) cluster(1)=cluster(1)+(2.*TMath::Pi());
+ if(cluster(1)>6. && (*trackITS).Getphi()<6.) cluster(1)=cluster(1)-(2.*TMath::Pi());
+ if(TMath::Abs(cluster(1)-(*trackITS).Getphi()) > sigmatotphi) continue;
+ // cout<<" supero sigmaphi \n";
+ AliITSTrackV1 *newTrack = new AliITSTrackV1((*trackITS));
+ (*newTrack).SetLayer((*trackITS).GetLayer()-1);
+
+ if (TMath::Abs(rTrack-cluster(0))/rTrack>1e-6)
+ (*newTrack).Correct(Double_t(cluster(0)));
+ //cout<<" cluster(2) e (*newTrack).GetZ() = "<<cluster(2)<<" "<< (*newTrack).GetZ()<<"\n";
+ if(TMath::Abs(cluster(2)-(*newTrack).GetZ()) > sigmatotz){
+ delete newTrack;
+ continue;}
+
+ if(iriv == 0) flaghit=1;
+
+ (*newTrack).AddMS(frl); // add the multiple scattering matrix to the covariance matrix
+ (*newTrack).AddEL(frl,1.,0);
+
+ Double_t sigmanew[2];
+ sigmanew[0]= sigmaphi;
+ sigmanew[1]=sigma[1];
+
+ if(fflagvert)
+ KalmanFilterVert(newTrack,cluster,sigmanew);
+ else
+ KalmanFilter(newTrack,cluster,sigmanew);
+
+
+ (*newTrack).PutCluster(layernew, vecclust);
+ newTrack->AddClustInTrack();
+
+ listoftrack.AddLast(newTrack);
+
+ } // end of for(;;) on rec points
+
+ delete [] indlist;
+
+ } // end of for on detectors
+
+ }//end if(outinters==0)
+
+ if(flaghit==0 || outinters==-2) {
+ AliITSTrackV1 *newTrack = new AliITSTrackV1(*trackITS);
+ (*newTrack).SetLayer((*trackITS).GetLayer()-1);
+ (*newTrack).AddMS(frl); // add the multiple scattering matrix to the covariance matrix
+ (*newTrack).AddEL(frl,1.,0);
+
+ listoftrack.AddLast(newTrack);
+ }
+
+
+ //gObjectTable->Print(); // stampa memoria
+
+ RecursiveTracking(&listoftrack);
+ listoftrack.Delete();
+ } // end of for on tracks
+
+ //gObjectTable->Print(); // stampa memoria
+
+}
+
+Int_t AliITSTrackerV1::Intersection(AliITSTrackV1 &track, Double_t rk,Int_t layer, Int_t &ladder,
+Int_t &detector) {
+//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
+// Found the intersection and the detector
+
+ if(track.DoNotCross(rk)){ /*cout<< " Do not cross \n";*/ return -1;}
+ track.Propagation(rk);
+ Double_t zinters=track.GetZ();
+ Double_t phinters=track.Getphi();
+ //cout<<"zinters = "<<zinters<<" phinters = "<<phinters<<"\n";
+
+ ////////////////////////////////// limits for Geometry 5 /////////////////////////////
+
+ //Int_t NLadder[]= {20, 40, 14, 22, 34, 38};
+ //Int_t NDetector[]= {4, 4, 6, 8, 23, 26};
+
+ //Float_t Detx[]= {0.64, 0.64, 3.509, 3.509, 3.65, 3.65 };
+ //Float_t Detz[]= {4.19, 4.19, 3.75 , 3.75 , 2 , 2 };
+
+ ////////////////////////////////////////////////////////////////////////////////////////////////
+
+ TVector det(9);
+ TVector listDet(2);
+ TVector distZCenter(2);
+ AliITSgeom *g1 = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom();
+
+ Int_t iz=0;
+ Double_t epsz=1.2;
+ Double_t epszpixel=0.05;
+
+ Int_t iD;
+ for(iD = 1; iD<= fNdet[layer-1]; iD++) {
+ g1->GetCenterThetaPhi(layer,1,iD,det);
+ Double_t zmin=det(2)-fDetz[layer-1];
+ if(iD==1) zmin=det(2)-(fDetz[layer-1])*epsz;
+ Double_t zmax=det(2)+fDetz[layer-1];
+ if(iD==fNdet[layer-1]) zmax=det(2)+(fDetz[layer-1])*epsz;
+ //added to take into account problem on drift
+ if(layer == 4 || layer==3) zmin=zmin-epszpixel; zmax=zmax+epszpixel;
+ //cout<<"zmin zinters zmax det(2)= "<<zmin<<" "<<zinters<<" "<<zmax<<" "<<det(2)<<"\n";
+ if(zinters > zmin && zinters <= zmax) {
+ if(iz>1) {cout<< " Errore su iz in Intersection \n"; getchar();}
+ else {
+ listDet(iz)= iD; distZCenter(iz)=TMath::Abs(zinters-det(2)); iz++;
+ }
+ }
+ }
- if(geoinfo) delete geoinfo;
+ if(iz==0) {/* cout<< " No detector along Z \n";*/ return -2;}
+ detector=Int_t (listDet(0));
+ if(iz>1 && (distZCenter(0)>distZCenter(1))) detector=Int_t (listDet(1));
+ AliITSgeom *g2 = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom();
+ Float_t global[3];
+ Float_t local[3];
+ TVector listLad(2);
+ TVector distPhiCenter(2);
+ Int_t ip=0;
+ Double_t pigre=TMath::Pi();
+
+ Int_t iLd;
+ for(iLd = 1; iLd<= fNlad[layer-1]; iLd++) {
+ g1->GetCenterThetaPhi(layer,iLd,detector,det);
+ // Double_t phidet=PhiDef(Double_t(det(0)),Double_t(det(1))); //vecchio
+ Double_t phidet= TMath::ATan2(Double_t(det(1)),Double_t(det(0))); if(phidet<0.) phidet+=2.*TMath::Pi(); //nuovo
+ // cout<<" layer phidet e det(6) = "<< layer<<" "<<phidet<<" "<<det(6)<<"\n"; getchar();
+ Double_t xmin,ymin,xmax,ymax;
+ // Double_t phiconfr=0.0;
+ //cout<<" phiconfr inizio = "<<phiconfr <<"\n"; getchar();
+ local[1]=local[2]=0.;
+ local[0]= -(fDetx[layer-1]);
+ if(layer==1) local[0]= (fDetx[layer-1]); //take into account different reference system
+ g2->LtoG(layer,iLd,detector,local,global);
+ xmax=global[0]; ymax=global[1];
+ local[0]= (fDetx[layer-1]);
+ if(layer==1) local[0]= -(fDetx[layer-1]); //take into account different reference system
+ g2->LtoG(layer,iLd,detector,local,global);
+ xmin=global[0]; ymin=global[1];
+ // Double_t phimin=PhiDef(xmin,ymin); //vecchio
+ Double_t phimin= TMath::ATan2(ymin,xmin); if(phimin<0.) phimin+=2.*TMath::Pi(); //nuovo
+ // Double_t phimax=PhiDef(xmax,ymax);
+ Double_t phimax= TMath::ATan2(ymax,xmax); if(phimax<0.) phimax+=2.*TMath::Pi(); //nuovo
+ //cout<<" xmin ymin = "<<xmin<<" "<<ymin<<"\n";
+ // cout<<" xmax ymax = "<<xmax<<" "<<ymax<<"\n";
+ // cout<<" iLd phimin phimax ="<<iLd<<" "<<phimin<<" "<<phimax<<"\n";
+
+ Double_t phiconfr=phinters;
+ if(phimin>phimax ){
+ if(phimin <5.5) {cout<<" Error in Intersection for phi \n"; getchar();}
+ phimin=phimin-(2.*pigre);
+ if(phinters>(1.5*pigre)) phiconfr=phinters-(2.*pigre);
+ if(phidet>(1.5*pigre)) phidet=phidet-(2.*pigre);
+ }
+ // cout<<" phiconfr finale = "<<phiconfr<<"\n"; getchar();
+ if(phiconfr>phimin && phiconfr<= phimax) {
+ if(ip>1) {
+ cout<< " Errore su ip in Intersection \n"; getchar();
+ }
+ else {
+ listLad(ip)= iLd; distPhiCenter(ip)=TMath::Abs(phiconfr-phidet); ip++;
+ }
+ }
+ }
+ if(ip==0) { cout<< " No detector along phi \n"; getchar();}
+ ladder=Int_t (listLad(0));
+ if(ip>1 && (distPhiCenter(0)>distPhiCenter(1))) ladder=Int_t (listLad(1));
+
+ return 0;
}
+
+
+void AliITSTrackerV1::KalmanFilter(AliITSTrackV1 *newTrack,TVector &cluster,Double_t sigma[2]){
+//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
+// Kalman filter without vertex constraint
+
+
+ ////////////////////////////// Evaluation of the measurement vector /////////////////////////////////////
+
+ Double_t m[2];
+ Double_t rk,phik,zk;
+ rk=cluster(0); phik=cluster(1); zk=cluster(2);
+ m[0]=phik; m[1]=zk;
+
+ ///////////////////////////////////// Evaluation of the error matrix V ///////////////////////////////
+
+ Double_t v00=sigma[0];
+ Double_t v11=sigma[1];
+
+ ///////////////////////////////////////////////////////////////////////////////////////////
+
+
+ Double_t cin00,cin10,cin20,cin30,cin40,cin11,cin21,cin31,cin41,cin22,cin32,cin42,cin33,cin43,cin44;
+
+ newTrack->GetCElements(cin00,cin10,cin11,cin20,cin21,cin22,cin30,cin31,cin32,cin33,cin40,
+ cin41,cin42,cin43,cin44); //get C matrix
+
+ Double_t rold00=cin00+v00;
+ Double_t rold10=cin10;
+ Double_t rold11=cin11+v11;
+
+//////////////////////////////////// R matrix inversion ///////////////////////////////////////////////
+
+ Double_t det=rold00*rold11-rold10*rold10;
+ Double_t r00=rold11/det;
+ Double_t r10=-rold10/det;
+ Double_t r11=rold00/det;
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+ Double_t k00=cin00*r00+cin10*r10;
+ Double_t k01=cin00*r10+cin10*r11;
+ Double_t k10=cin10*r00+cin11*r10;
+ Double_t k11=cin10*r10+cin11*r11;
+ Double_t k20=cin20*r00+cin21*r10;
+ Double_t k21=cin20*r10+cin21*r11;
+ Double_t k30=cin30*r00+cin31*r10;
+ Double_t k31=cin30*r10+cin31*r11;
+ Double_t k40=cin40*r00+cin41*r10;
+ Double_t k41=cin40*r10+cin41*r11;
+
+ Double_t x0,x1,x2,x3,x4;
+ newTrack->GetXElements(x0,x1,x2,x3,x4); // get the state vector
+
+ Double_t savex0=x0, savex1=x1;
+
+ x0+=k00*(m[0]-savex0)+k01*(m[1]-savex1);
+ x1+=k10*(m[0]-savex0)+k11*(m[1]-savex1);
+ x2+=k20*(m[0]-savex0)+k21*(m[1]-savex1);
+ x3+=k30*(m[0]-savex0)+k31*(m[1]-savex1);
+ x4+=k40*(m[0]-savex0)+k41*(m[1]-savex1);
+
+ Double_t c00,c10,c20,c30,c40,c11,c21,c31,c41,c22,c32,c42,c33,c43,c44;
+
+ c00=cin00-k00*cin00-k01*cin10;
+ c10=cin10-k00*cin10-k01*cin11;
+ c20=cin20-k00*cin20-k01*cin21;
+ c30=cin30-k00*cin30-k01*cin31;
+ c40=cin40-k00*cin40-k01*cin41;
+
+ c11=cin11-k10*cin10-k11*cin11;
+ c21=cin21-k10*cin20-k11*cin21;
+ c31=cin31-k10*cin30-k11*cin31;
+ c41=cin41-k10*cin40-k11*cin41;
+
+ c22=cin22-k20*cin20-k21*cin21;
+ c32=cin32-k20*cin30-k21*cin31;
+ c42=cin42-k20*cin40-k21*cin41;
+
+ c33=cin33-k30*cin30-k31*cin31;
+ c43=cin43-k30*cin40-k31*cin41;
+
+ c44=cin44-k40*cin40-k41*cin41;
+
+ newTrack->PutXElements(x0,x1,x2,x3,x4); // put the new state vector
+
+ newTrack->PutCElements(c00,c10,c11,c20,c21,c22,c30,c31,c32,c33,c40,c41,c42,c43,c44); // put in track the
+ // new cov matrix
+ Double_t vmcold00=v00-c00;
+ Double_t vmcold10=-c10;
+ Double_t vmcold11=v11-c11;
+
+///////////////////////////////////// Matrix vmc inversion ////////////////////////////////////////////////
+
+ det=vmcold00*vmcold11-vmcold10*vmcold10;
+ Double_t vmc00=vmcold11/det;
+ Double_t vmc10=-vmcold10/det;
+ Double_t vmc11=vmcold00/det;
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+ Double_t chi2=(m[0]-x0)*( vmc00*(m[0]-x0) + 2.*vmc10*(m[1]-x1) ) +
+ (m[1]-x1)*vmc11*(m[1]-x1);
+
+ newTrack->SetChi2(newTrack->GetChi2()+chi2);
+
+}
+
+
+void AliITSTrackerV1::KalmanFilterVert(AliITSTrackV1 *newTrack,TVector &cluster,Double_t sigma[2]){
+//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
+// Kalman filter with vertex constraint
+
+ ////////////////////////////// Evaluation of the measurement vector m ///////////////
+
+ Double_t m[4];
+ Double_t rk,phik,zk;
+ rk=cluster(0); phik=cluster(1); zk=cluster(2);
+ m[0]=phik; m[1]=zk;
+
+ Double_t cc=(*newTrack).GetC();
+ Double_t zv=(*newTrack).GetZv();
+ Double_t dv=(*newTrack).GetDv();
+ Double_t cy=cc/2.;
+ Double_t tgl= (zk-zv)*cy/TMath::ASin(cy*rk);
+ m[2]=dv; m[3]=tgl;
+
+ ///////////////////////////////////// Evaluation of the error matrix V //////////////
+ Int_t layer=newTrack->GetLayer();
+ Double_t v00=sigma[0];
+ Double_t v11=sigma[1];
+ Double_t v31=sigma[1]/rk;
+ Double_t sigmaDv=newTrack->GetsigmaDv();
+ Double_t v22=sigmaDv*sigmaDv + newTrack->Getd2(layer-1);
+ Double_t v32=newTrack->Getdtgl(layer-1);
+ Double_t sigmaZv=newTrack->GetsigmaZv();
+ Double_t v33=(sigma[1]+sigmaZv*sigmaZv)/(rk*rk) + newTrack->Gettgl2(layer-1);
+ ///////////////////////////////////////////////////////////////////////////////////////
+
+ Double_t cin00,cin10,cin11,cin20,cin21,cin22,cin30,cin31,cin32,cin33,cin40,cin41,cin42,cin43,cin44;
+
+ newTrack->GetCElements(cin00,cin10,cin11,cin20,cin21,cin22,cin30,cin31,cin32,cin33,cin40,
+ cin41,cin42,cin43,cin44); //get C matrix
+
+ Double_t r[4][4];
+ r[0][0]=cin00+v00;
+ r[1][0]=cin10;
+ r[2][0]=cin20;
+ r[3][0]=cin30;
+ r[1][1]=cin11+v11;
+ r[2][1]=cin21;
+ r[3][1]=cin31+sigma[1]/rk;
+ r[2][2]=cin22+sigmaDv*sigmaDv+newTrack->Getd2(layer-1);
+ r[3][2]=cin32+newTrack->Getdtgl(layer-1);
+ r[3][3]=cin33+(sigma[1]+sigmaZv*sigmaZv)/(rk*rk) + newTrack->Gettgl2(layer-1);
+
+ r[0][1]=r[1][0]; r[0][2]=r[2][0]; r[0][3]=r[3][0]; r[1][2]=r[2][1]; r[1][3]=r[3][1];
+ r[2][3]=r[3][2];
+
+///////////////////// Matrix R inversion ////////////////////////////////////////////
+
+ const Int_t kn=4;
+ Double_t big, hold;
+ Double_t d=1.;
+ Int_t ll[kn],mm[kn];
+
+ Int_t i,j,k;
+
+ for(k=0; k<kn; k++) {
+ ll[k]=k;
+ mm[k]=k;
+ big=r[k][k];
+ for(j=k; j<kn ; j++) {
+ for (i=j; i<kn; i++) {
+ if(TMath::Abs(big) < TMath::Abs(r[i][j]) ) { big=r[i][j]; ll[k]=i; mm[k]=j; }
+ }
+ }
+//
+ j= ll[k];
+ if(j > k) {
+ for(i=0; i<kn; i++) { hold=-r[k][i]; r[k][i]=r[j][i]; r[j][i]=hold; }
+
+ }
+//
+ i=mm[k];
+ if(i > k ) {
+ for(j=0; j<kn; j++) { hold=-r[j][k]; r[j][k]=r[j][i]; r[j][i]=hold; }
+ }
+//
+ if(!big) {
+ d=0.;
+ cout << "Singular matrix\n";
+ }
+ for(i=0; i<kn; i++) {
+ if(i == k) { continue; }
+ r[i][k]=r[i][k]/(-big);
+ }
+//
+ for(i=0; i<kn; i++) {
+ hold=r[i][k];
+ for(j=0; j<kn; j++) {
+ if(i == k || j == k) { continue; }
+ r[i][j]=hold*r[k][j]+r[i][j];
+ }
+ }
+//
+ for(j=0; j<kn; j++) {
+ if(j == k) { continue; }
+ r[k][j]=r[k][j]/big;
+ }
+//
+ d=d*big;
+//
+ r[k][k]=1./big;
+ }
+//
+ for(k=kn-1; k>=0; k--) {
+ i=ll[k];
+ if(i > k) {
+ for (j=0; j<kn; j++) {hold=r[j][k]; r[j][k]=-r[j][i]; r[j][i]=hold;}
+ }
+ j=mm[k];
+ if(j > k) {
+ for (i=0; i<kn; i++) {hold=r[k][i]; r[k][i]=-r[j][i]; r[j][i]=hold;}
+ }
+ }
+//////////////////////////////////////////////////////////////////////////////////
+
+
+ Double_t k00=cin00*r[0][0]+cin10*r[1][0]+cin20*r[2][0]+cin30*r[3][0];
+ Double_t k01=cin00*r[1][0]+cin10*r[1][1]+cin20*r[2][1]+cin30*r[3][1];
+ Double_t k02=cin00*r[2][0]+cin10*r[2][1]+cin20*r[2][2]+cin30*r[3][2];
+ Double_t k03=cin00*r[3][0]+cin10*r[3][1]+cin20*r[3][2]+cin30*r[3][3];
+ Double_t k10=cin10*r[0][0]+cin11*r[1][0]+cin21*r[2][0]+cin31*r[3][0];
+ Double_t k11=cin10*r[1][0]+cin11*r[1][1]+cin21*r[2][1]+cin31*r[3][1];
+ Double_t k12=cin10*r[2][0]+cin11*r[2][1]+cin21*r[2][2]+cin31*r[3][2];
+ Double_t k13=cin10*r[3][0]+cin11*r[3][1]+cin21*r[3][2]+cin31*r[3][3];
+ Double_t k20=cin20*r[0][0]+cin21*r[1][0]+cin22*r[2][0]+cin32*r[3][0];
+ Double_t k21=cin20*r[1][0]+cin21*r[1][1]+cin22*r[2][1]+cin32*r[3][1];
+ Double_t k22=cin20*r[2][0]+cin21*r[2][1]+cin22*r[2][2]+cin32*r[3][2];
+ Double_t k23=cin20*r[3][0]+cin21*r[3][1]+cin22*r[3][2]+cin32*r[3][3];
+ Double_t k30=cin30*r[0][0]+cin31*r[1][0]+cin32*r[2][0]+cin33*r[3][0];
+ Double_t k31=cin30*r[1][0]+cin31*r[1][1]+cin32*r[2][1]+cin33*r[3][1];
+ Double_t k32=cin30*r[2][0]+cin31*r[2][1]+cin32*r[2][2]+cin33*r[3][2];
+ Double_t k33=cin30*r[3][0]+cin31*r[3][1]+cin32*r[3][2]+cin33*r[3][3];
+ Double_t k40=cin40*r[0][0]+cin41*r[1][0]+cin42*r[2][0]+cin43*r[3][0];
+ Double_t k41=cin40*r[1][0]+cin41*r[1][1]+cin42*r[2][1]+cin43*r[3][1];
+ Double_t k42=cin40*r[2][0]+cin41*r[2][1]+cin42*r[2][2]+cin43*r[3][2];
+ Double_t k43=cin40*r[3][0]+cin41*r[3][1]+cin42*r[3][2]+cin43*r[3][3];
+
+ Double_t x0,x1,x2,x3,x4;
+ newTrack->GetXElements(x0,x1,x2,x3,x4); // get the state vector
+
+ Double_t savex0=x0, savex1=x1, savex2=x2, savex3=x3;
+
+ x0+=k00*(m[0]-savex0)+k01*(m[1]-savex1)+k02*(m[2]-savex2)+
+ k03*(m[3]-savex3);
+ x1+=k10*(m[0]-savex0)+k11*(m[1]-savex1)+k12*(m[2]-savex2)+
+ k13*(m[3]-savex3);
+ x2+=k20*(m[0]-savex0)+k21*(m[1]-savex1)+k22*(m[2]-savex2)+
+ k23*(m[3]-savex3);
+ x3+=k30*(m[0]-savex0)+k31*(m[1]-savex1)+k32*(m[2]-savex2)+
+ k33*(m[3]-savex3);
+ x4+=k40*(m[0]-savex0)+k41*(m[1]-savex1)+k42*(m[2]-savex2)+
+ k43*(m[3]-savex3);
+
+ Double_t c00,c10,c20,c30,c40,c11,c21,c31,c41,c22,c32,c42,c33,c43,c44;
+
+ c00=cin00-k00*cin00-k01*cin10-k02*cin20-k03*cin30;
+ c10=cin10-k00*cin10-k01*cin11-k02*cin21-k03*cin31;
+ c20=cin20-k00*cin20-k01*cin21-k02*cin22-k03*cin32;
+ c30=cin30-k00*cin30-k01*cin31-k02*cin32-k03*cin33;
+ c40=cin40-k00*cin40-k01*cin41-k02*cin42-k03*cin43;
+
+ c11=cin11-k10*cin10-k11*cin11-k12*cin21-k13*cin31;
+ c21=cin21-k10*cin20-k11*cin21-k12*cin22-k13*cin32;
+ c31=cin31-k10*cin30-k11*cin31-k12*cin32-k13*cin33;
+ c41=cin41-k10*cin40-k11*cin41-k12*cin42-k13*cin43;
+
+ c22=cin22-k20*cin20-k21*cin21-k22*cin22-k23*cin32;
+ c32=cin32-k20*cin30-k21*cin31-k22*cin32-k23*cin33;
+ c42=cin42-k20*cin40-k21*cin41-k22*cin42-k23*cin43;
+
+ c33=cin33-k30*cin30-k31*cin31-k32*cin32-k33*cin33;
+ c43=cin43-k30*cin40-k31*cin41-k32*cin42-k33*cin43;
+
+ c44=cin44-k40*cin40-k41*cin41-k42*cin42-k43*cin43;
+
+ newTrack->PutXElements(x0,x1,x2,x3,x4); // put the new state vector
+
+ newTrack->PutCElements(c00,c10,c11,c20,c21,c22,c30,c31,c32,c33,c40,c41,c42,c43,c44); // put in track the
+ // new cov matrix
+
+ Double_t vmc[4][4];
+
+ vmc[0][0]=v00-c00; vmc[1][0]=-c10; vmc[2][0]=-c20; vmc[3][0]=-c30;
+ vmc[1][1]=v11-c11; vmc[2][1]=-c21; vmc[3][1]=v31-c31;
+ vmc[2][2]=v22-c22; vmc[3][2]=v32-c32;
+ vmc[3][3]=v33-c33;
+
+ vmc[0][1]=vmc[1][0]; vmc[0][2]=vmc[2][0]; vmc[0][3]=vmc[3][0];
+ vmc[1][2]=vmc[2][1]; vmc[1][3]=vmc[3][1];
+ vmc[2][3]=vmc[3][2];
+
+
+/////////////////////// vmc matrix inversion ///////////////////////////////////
+
+ d=1.;
+
+ for(k=0; k<kn; k++) {
+ ll[k]=k;
+ mm[k]=k;
+ big=vmc[k][k];
+ for(j=k; j<kn ; j++) {
+ for (i=j; i<kn; i++) {
+ if(TMath::Abs(big) < TMath::Abs(vmc[i][j]) ) { big=vmc[i][j]; ll[k]=i; mm[k]=j; }
+ }
+ }
+//
+ j= ll[k];
+ if(j > k) {
+ for(i=0; i<kn; i++) { hold=-vmc[k][i]; vmc[k][i]=vmc[j][i]; vmc[j][i]=hold; }
+
+ }
+//
+ i=mm[k];
+ if(i > k ) {
+ for(j=0; j<kn; j++) { hold=-vmc[j][k]; vmc[j][k]=vmc[j][i]; vmc[j][i]=hold; }
+ }
+//
+ if(!big) {
+ d=0.;
+ cout << "Singular matrix\n";
+ }
+ for(i=0; i<kn; i++) {
+ if(i == k) { continue; }
+ vmc[i][k]=vmc[i][k]/(-big);
+ }
+//
+ for(i=0; i<kn; i++) {
+ hold=vmc[i][k];
+ for(j=0; j<kn; j++) {
+ if(i == k || j == k) { continue; }
+ vmc[i][j]=hold*vmc[k][j]+vmc[i][j];
+ }
+ }
+//
+ for(j=0; j<kn; j++) {
+ if(j == k) { continue; }
+ vmc[k][j]=vmc[k][j]/big;
+ }
+//
+ d=d*big;
+//
+ vmc[k][k]=1./big;
+ }
+//
+ for(k=kn-1; k>=0; k--) {
+ i=ll[k];
+ if(i > k) {
+ for (j=0; j<kn; j++) {hold=vmc[j][k]; vmc[j][k]=-vmc[j][i]; vmc[j][i]=hold;}
+ }
+ j=mm[k];
+ if(j > k) {
+ for (i=0; i<kn; i++) {hold=vmc[k][i]; vmc[k][i]=-vmc[j][i]; vmc[j][i]=hold;}
+ }
+ }
+
+
+////////////////////////////////////////////////////////////////////////////////
+
+ Double_t chi2=(m[0]-x0)*( vmc[0][0]*(m[0]-x0) + 2.*vmc[1][0]*(m[1]-x1) +
+ 2.*vmc[2][0]*(m[2]-x2)+ 2.*vmc[3][0]*(m[3]-x3) ) +
+ (m[1]-x1)* ( vmc[1][1]*(m[1]-x1) + 2.*vmc[2][1]*(m[2]-x2)+
+ 2.*vmc[3][1]*(m[3]-x3) ) +
+ (m[2]-x2)* ( vmc[2][2]*(m[2]-x2)+ 2.*vmc[3][2]*(m[3]-x3) ) +
+ (m[3]-x3)*vmc[3][3]*(m[3]-x3);
+
+ newTrack->SetChi2(newTrack->GetChi2()+chi2);
+
+}
+
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff