-#include <iostream.h>
-#include <TROOT.h>
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+/*
+$Log$
+Revision 1.22 2002/10/22 14:45:36 alibrary
+Introducing Riostream.h
+
+Revision 1.21 2002/02/05 09:12:26 hristov
+Small mods for gcc 3.02
+
+Revision 1.20 2001/11/21 14:47:45 barbera
+Some unuseful print-out commented out
+
+Revision 1.19 2001/11/21 10:49:07 barbera
+Bug correction suggested by Rene done
+
+Revision 1.18 2001/11/20 15:46:17 barbera
+Point coordinated are calculated in cylindrical reference frame once and for all at the beginning of tracking V1
+
+Revision 1.10.2.1 2001/10/24 07:26:04 hristov
+All the changes from the head are merged with the release
+
+Revision 1.14 2001/10/24 07:19:57 hristov
+Some pointer correctly initialised in one of the constructors
+
+Revision 1.13 2001/10/21 19:17:12 hristov
+Several pointers were set to zero in the default constructors to avoid memory management problems
+
+Revision 1.12 2001/10/19 21:32:35 nilsen
+Minor changes to remove compliation warning on gcc 2.92.2 compiler, and
+cleanded up a little bit of code.
+
+*/
+// 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 <Riostream.h>
+#include <Riostream.h>
#include <TMath.h>
-#include <TRandom.h>
#include <TBranch.h>
#include <TVector.h>
-#include <TClonesArray.h>
#include <TFile.h>
#include <TTree.h>
-
+#include <TStopwatch.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 "AliITSTrackV1.h"
+#include "AliITSIOTrack.h"
+#include "AliITSRad.h"
+#include "../TPC/AliTPCtracker.h"
+#include "AliITSTrackerV1.h"
+#include "AliITSVertex.h"
+ClassImp(AliITSTrackerV1)
+ //______________________________________________________________________
+AliITSTrackerV1::AliITSTrackerV1() {
+ //Default constructor
+ fITS = 0;
+ fresult = 0;
+ fPtref=0.;
+ fChi2max=0.;
+ //fepsphi=0.;
+ //fepsz=0.;
+ frecPoints = 0;
+ fvettid = 0;
+ fflagvert=0;
+ frl = 0;
+ Int_t ia;
+ for(ia=0; ia<6; ia++) {
+ fNlad[ia]=0;
+ fNdet[ia]=0;
+ fAvrad[ia]=0.;
+ fDetx[ia]=0.;
+ fDetz[ia]=0.;
+ } // end for ia
+ fzmin = 0;
+ fzmax = 0;
+ fphimin = 0;
+ fphimax = 0;
+ fphidet = 0;
+ fNRecPoints=0;
+ fRecCylR=0;
+ fRecCylPhi=0;
+ fRecCylZ=0;
+ fFieldFactor=0;
+}
+//______________________________________________________________________
+AliITSTrackerV1::AliITSTrackerV1(AliITS* IITTSS, Int_t evnumber, 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.
-#include "AliITSRad.h"
-#include "AliITStrack.h"
-#include "AliITSiotrack.h"
-#include "AliITStracking.h"
-#include "../TPC/AliTPC.h"
-#include "../TPC/AliTPCParam.h"
-#include "../TPC/AliTPCtracker.h"
+ //PH Initialisation taken from the default constructor
+ fITS = IITTSS;
+ fresult = 0;
+ fPtref = 0.;
+ fChi2max =0.;
+ frecPoints = 0;
+ fvettid = 0;
+ fflagvert = flag;
+ frl = 0;
+ fzmin = 0;
+ fzmax = 0;
+ fphimin = 0;
+ fphimax = 0;
+ fphidet = 0;
+
+ Int_t imax = 200,jmax = 450;
+ frl = new AliITSRad(imax,jmax);
-#include "AliITSgeoinfo.h"
-#include "AliITSTrackerV1.h"
+ ////////// gets information on geometry /////////////////////////////
+ AliITSgeom *g1 = fITS->GetITSgeom();
+ Int_t ll=1, dd=1;
+ TVector det(9);
+ Int_t ia;
+ for(ia=0; ia<6; ia++) {
+ fNlad[ia]=g1->GetNladders(ia+1);
+ fNdet[ia]=g1->GetNdetectors(ia+1);
+ //cout<<fNlad[i]<<" "<<fNdet[i]<<"\n";
+ } // end for ia
+ //cout<<" mean radius = ";
+ Int_t ib;
+ for(ib=0; ib<6; ib++) {
+ g1->GetCenterThetaPhi(ib+1,ll,dd,det);
+ Double_t r1=TMath::Sqrt(det(0)*det(0)+det(1)*det(1));
+ g1->GetCenterThetaPhi(ib+1,ll,dd+1,det);
+ Double_t r2=TMath::Sqrt(det(0)*det(0)+det(1)*det(1));
+ fAvrad[ib]=(r1+r2)/2.;
+ //cout<<fAvrad[ib]<<" ";
+ } // end for ib
+ //cout<<"\n"; getchar();
-ClassImp(AliITSTrackerV1)
+ fDetx[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDx();
+ fDetz[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDz();
+ fDetx[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDx();
+ fDetz[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDz();
-//________________________________________________________________
+ fDetx[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDx();
+ fDetz[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDz();
-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;
+ fDetx[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDx();
+ fDetz[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDz();
-}
+ fDetx[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDx();
+ fDetz[4] = ((AliITSgeomSSD*)(g1->GetShape(5, 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<<" "<<fDetx[la]<<" "<<
+ // fDetz[la]<<endl;
+ //getchar();
+
+ // allocate memory and define matrices fzmin, fzmax, fphimin and fphimax //
+ Double_t epsz=1.2;
+ Double_t epszdrift=0.05;
-//________________________________________________________________
+ fzmin = new Double_t*[6]; fzmax = new Double_t*[6];
+ Int_t im1, im2, im2max;
+ for(im1=0; im1<6; im1++) {
+ im2max=fNdet[im1];
+ fzmin[im1] = new Double_t[im2max]; fzmax[im1] = new Double_t[im2max];
+ } // end for im1
-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();
+ for(im1=0; im1<6; im1++) {
+ im2max=fNdet[im1];
+ for(im2=0; im2<im2max; im2++) {
+ g1->GetCenterThetaPhi(im1+1,1,im2+1,det);
+ if(im2!=0) fzmin[im1][im2]=det(2)-fDetz[im1];
+ else
+ fzmin[im1][im2]=det(2)-(fDetz[im1])*epsz;
+ if(im2!=(im2max-1)) fzmax[im1][im2]=det(2)+fDetz[im1];
+ else
+ fzmax[im1][im2]=det(2)+fDetz[im1]*epsz;
+ if(im1==2 || im1==3) {
+ fzmin[im1][im2]-=epszdrift;
+ fzmax[im1][im2]+=epszdrift;
+ } // end if im1==2 || im1==3
+ } // end for im2
+ } // end for im1
- AliITStrack tr(track);
+ fphimin = new Double_t*[6]; fphimax = new Double_t*[6];
+ for(im1=0;im1<6;im1++) {
+ im2max=fNlad[im1];
+ fphimin[im1] = new Double_t[im2max];
+ fphimax[im1] = new Double_t[im2max];
+ } // end for im1
- list->AddLast(&tr);
+ fphidet = new Double_t*[6];
+ for(im1=0; im1<6; im1++) {
+ im2max=fNlad[im1];
+ fphidet[im1] = new Double_t[im2max];
+ } // end for im1
+
+ //Float_t global[3],local[3];
+ Double_t global[3],local[3];
+ Double_t pigre=TMath::Pi();
+ Double_t xmin,ymin,xmax,ymax;
+
+ for(im1=0; im1<6; im1++) {
+ im2max=fNlad[im1];
+ for(im2=0; im2<im2max; im2++) {
+ Int_t idet=2;
+ g1->GetCenterThetaPhi(im1+1,im2+1,idet,det);
+ fphidet[im1][im2] = TMath::ATan2(Double_t(det(1)),
+ Double_t(det(0)));
+ if(fphidet[im1][im2]<0.) fphidet[im1][im2]+=2.*pigre;
+ local[1]=local[2]=0.;
+ local[0]= -(fDetx[im1]);
+ if(im1==0) local[0]= (fDetx[im1]); //to take into account
+ // different reference system
+ g1->LtoG(im1+1,im2+1,idet,local,global);
+ xmax=global[0]; ymax=global[1];
+ local[0]= (fDetx[im1]);
+ if(im1==0) local[0]= -(fDetx[im1]);//take into account different
+ // reference system
+ g1->LtoG(im1+1,im2+1,idet,local,global);
+ xmin=global[0]; ymin=global[1];
+ fphimin[im1][im2]= TMath::ATan2(ymin,xmin);
+ if(fphimin[im1][im2]<0.) fphimin[im1][im2]+=2.*pigre;
+ fphimax[im1][im2]= TMath::ATan2(ymax,xmax);
+ if(fphimax[im1][im2]<0.) fphimax[im1][im2]+=2.*pigre;
+ } // end for im2
+ } // end for im1
+//////////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////// allocate memory and define vector fNRecPoints and matrices fRecCylR, fRecCylPhi, fRecCylZ /////////////
+ gAlice->GetEvent(evnumber);
+ Int_t NumOfModules = g1->GetIndexMax();
+ //fRecCylR = new Float_t *[NumOfModules];
+ fRecCylR = new Double_t *[NumOfModules];
+ //fRecCylPhi = new Float_t *[NumOfModules];
+ fRecCylPhi = new Double_t *[NumOfModules];
+ //fRecCylZ = new Float_t *[NumOfModules];
+ fRecCylZ = new Double_t *[NumOfModules];
+ AliITSRecPoint *recp;
+ fNRecPoints = new Int_t[NumOfModules];
+
+ for(Int_t module=0; module<NumOfModules; module++) {
+ fITS->ResetRecPoints();
+ gAlice->TreeR()->GetEvent(module);
+ frecPoints=fITS->RecPoints();
+ Int_t nRecPoints=fNRecPoints[module]=frecPoints->GetEntries();
+ /*
+ fRecCylR[module] = new Float_t[nRecPoints];
+ fRecCylPhi[module] = new Float_t[nRecPoints];
+ fRecCylZ[module] = new Float_t[nRecPoints];
+ */
+ fRecCylR[module] = new Double_t[nRecPoints];
+ fRecCylPhi[module] = new Double_t[nRecPoints];
+ fRecCylZ[module] = new Double_t[nRecPoints];
+ Int_t ind;
+ for(ind=0; ind<fNRecPoints[module]; ind++) {
+ recp=(AliITSRecPoint*)frecPoints->UncheckedAt(ind);
+ // Float_t global[3], local[3];
+ Double_t global[3], local[3];
+ local[0]=recp->GetX();
+ local[1]=0.;
+ local[2]= recp->GetZ();
+ g1->LtoG(module,local,global);
+ /*
+ Float_t r = TMath::Sqrt(global[0]*global[0]+global[1]*global[1]); // r hit
+ Float_t phi = TMath::ATan2(global[1],global[0]); if(phi<0.) phi+=2.*TMath::Pi(); // phi hit
+ Float_t z = global[2]; // z hit
+ */
+
+ Double_t r = TMath::Sqrt(global[0]*global[0]+global[1]*global[1]); // r hit
+ Double_t phi = TMath::ATan2(global[1],global[0]); if(phi<0.) phi+=2.*TMath::Pi(); // phi hit
+ Double_t z = global[2]; // z hit
+
+ fRecCylR[module][ind]=r;
+ fRecCylPhi[module][ind]=phi;
+ fRecCylZ[module][ind]=z;
+ }
+ }
+ //}
+ //}
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+
+ ////////// gets magnetic field factor //////////////////////////////
+
+ AliMagF * fieldPointer = gAlice->Field();
+ fFieldFactor = (Double_t)fieldPointer->Factor();
+ //cout<< " field factor = "<<fFieldFactor<<"\n"; getchar();
+}
+//______________________________________________________________________
+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
+
+ *fITS = *cobj.fITS;
+ *fresult = *cobj.fresult;
+ fPtref = cobj.fPtref;
+ fChi2max = cobj.fChi2max;
+ **fvettid = **cobj.fvettid;
+ fflagvert = cobj.fflagvert;
+ Int_t imax=200,jmax=450;
+ frl = new AliITSRad(imax,jmax);
+ *frl = *cobj.frl;
+ fFieldFactor = cobj.fFieldFactor;
+ Int_t i,im1,im2,im2max;
+ 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];
+ } // end or i
+ fzmin = new Double_t*[6]; fzmax = new Double_t*[6];
+ for(im1=0; im1<6; im1++) {
+ im2max=fNdet[im1];
+ fzmin[im1] = new Double_t[im2max];
+ fzmax[im1] = new Double_t[im2max];
+ } // end for im1
+ fphimin = new Double_t*[6]; fphimax = new Double_t*[6];
+ for(im1=0;im1<6;im1++) {
+ im2max=fNlad[im1];
+ fphimin[im1] = new Double_t[im2max];
+ fphimax[im1] = new Double_t[im2max];
+ } // end for im1
- Double_t Pt=(tr).GetPt();
- //cout << "\n Pt = " << Pt <<"\n"; //stampa
-
- 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.; }
+ fphidet = new Double_t*[6];
+ for(im1=0; im1<6; im1++) {
+ im2max=fNlad[im1];
+ fphidet[im1] = new Double_t[im2max];
+ } // end for im1
+ for(im1=0; im1<6; im1++) {
+ im2max=fNdet[im1];
+ for(im2=0; im2<im2max; im2++) {
+ fzmin[im1][im2]=cobj.fzmin[im1][im2];
+ fzmax[im1][im2]=cobj.fzmax[im1][im2];
+ } // end for im2
+ } // end for im1
+ for(im1=0; im1<6; im1++) {
+ im2max=fNlad[im1];
+ for(im2=0; im2<im2max; im2++) {
+ fphimin[im1][im2]=cobj.fphimin[im1][im2];
+ fphimax[im1][im2]=cobj.fphimax[im1][im2];
+ fphidet[im1][im2]=cobj.fphidet[im1][im2];
+ } // end for im2
+ } // end for im2
+
+
+ AliITSgeom *g1 = fITS->GetITSgeom();
+ Int_t NumOfModules = g1->GetIndexMax();
+ /*
+ fRecCylR = new Float_t *[NumOfModules];
+ fRecCylPhi = new Float_t *[NumOfModules];
+ fRecCylZ = new Float_t *[NumOfModules];
+ */
+ fRecCylR = new Double_t *[NumOfModules];
+ fRecCylPhi = new Double_t *[NumOfModules];
+ fRecCylZ = new Double_t *[NumOfModules];
+ fNRecPoints = new Int_t[NumOfModules];
+ for(Int_t module=0; module<NumOfModules; module++) {
+ Int_t nRecPoints=fNRecPoints[module]=cobj.fNRecPoints[module];
+ /*
+ fRecCylR[module] = new Float_t[nRecPoints];
+ fRecCylPhi[module] = new Float_t[nRecPoints];
+ fRecCylZ[module] = new Float_t[nRecPoints];
+ */
+ fRecCylR[module] = new Double_t[nRecPoints];
+ fRecCylPhi[module] = new Double_t[nRecPoints];
+ fRecCylZ[module] = new Double_t[nRecPoints];
+ Int_t ind;
+ for(ind=0; ind<nRecPoints; ind++) {
+ fRecCylR[module][ind]=cobj.fRecCylR[module][ind];
+ fRecCylPhi[module][ind]=cobj.fRecCylPhi[module][ind];
+ fRecCylZ[module][ind]=cobj.fRecCylZ[module][ind];
+ }
+ }
+
+}
+void AliITSTrackerV1::DelMatrix(Int_t NumOfModules) {
+ for(Int_t mod=0; mod<NumOfModules; mod++) {
+ delete fRecCylR[mod];
+ delete fRecCylPhi[mod];
+ delete fRecCylZ[mod];
+ }
+ delete fRecCylR;
+ delete fRecCylPhi;
+ delete fRecCylZ;
+}
+//______________________________________________________________________
+AliITSTrackerV1::~AliITSTrackerV1(){
+ // Origin A. Badala' and G.S. Pappalardo:
+ // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
+ // class destructor
+ delete frl;
+ delete fNRecPoints;
+ for(Int_t i=0; i<6; i++) {
+ delete fzmin[i];
+ delete fzmax[i];
+ delete fphimin[i];
+ delete fphimax[i];
+ delete fphidet[i];
}
- Long_t labref;
- Int_t freq;
- (*reference).Search(VecTotLabref, labref, freq);
-
- //if(freq < 6) labref=-labref; // cinque - sei
- if(freq < 5) labref=-labref; // cinque - sei
- (*reference).SetLabel(labref);
- return *reference;
+ delete fzmin;
+ delete fzmax;
+ delete fphimin;
+ delete fphimax;
+ delete fphidet;
+
+}
+//______________________________________________________________________
+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;
+ fChi2max = obj.fChi2max;
+ **fvettid = **obj.fvettid;
+ fflagvert = obj.fflagvert;
+ Int_t imax=200,jmax=450;
+ frl = new AliITSRad(imax,jmax);
+ *frl = *obj.frl;
+ fFieldFactor = obj.fFieldFactor;
+ 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];
+ } // end for i
+ fzmin = new Double_t*[6];
+ fzmax = new Double_t*[6];
+ Int_t im1, im2, im2max;
+ for(im1=0; im1<6; im1++) {
+ im2max=fNdet[im1];
+ fzmin[im1] = new Double_t[im2max]; fzmax[im1] = new Double_t[im2max];
+ } // end for im1
+ fphimin = new Double_t*[6]; fphimax = new Double_t*[6];
+ for(im1=0;im1<6;im1++) {
+ im2max=fNlad[im1];
+ fphimin[im1] = new Double_t[im2max];
+ fphimax[im1] = new Double_t[im2max];
+ } // end for im1
+
+ fphidet = new Double_t*[6];
+ for(im1=0; im1<6; im1++) {
+ im2max=fNlad[im1];
+ fphidet[im1] = new Double_t[im2max];
+ } // end for im1
+ for(im1=0; im1<6; im1++) {
+ im2max=fNdet[im1];
+ for(im2=0; im2<im2max; im2++) {
+ fzmin[im1][im2]=obj.fzmin[im1][im2];
+ fzmax[im1][im2]=obj.fzmax[im1][im2];
+ } // end for im2
+ } // end for im1
+ for(im1=0; im1<6; im1++) {
+ im2max=fNlad[im1];
+ for(im2=0; im2<im2max; im2++) {
+ fphimin[im1][im2]=obj.fphimin[im1][im2];
+ fphimax[im1][im2]=obj.fphimax[im1][im2];
+ fphidet[im1][im2]=obj.fphidet[im1][im2];
+ } // end for im2
+ } // end for im1
+ AliITSgeom *g1 = fITS->GetITSgeom();
+ Int_t NumOfModules = g1->GetIndexMax();
+ /*
+ fRecCylR = new Float_t *[NumOfModules];
+ fRecCylPhi = new Float_t *[NumOfModules];
+ fRecCylZ = new Float_t *[NumOfModules];
+ */
+ fRecCylR = new Double_t *[NumOfModules];
+ fRecCylPhi = new Double_t *[NumOfModules];
+ fRecCylZ = new Double_t *[NumOfModules];
+ fNRecPoints = new Int_t[NumOfModules];
+ for(Int_t module=0; module<NumOfModules; module++) {
+ Int_t nRecPoints=fNRecPoints[module]=obj.fNRecPoints[module];
+ /*
+ fRecCylR[module] = new Float_t[nRecPoints];
+ fRecCylPhi[module] = new Float_t[nRecPoints];
+ fRecCylZ[module] = new Float_t[nRecPoints];
+ */
+ fRecCylR[module] = new Double_t[nRecPoints];
+ fRecCylPhi[module] = new Double_t[nRecPoints];
+ fRecCylZ[module] = new Double_t[nRecPoints];
+ Int_t ind;
+ for(ind=0; ind<nRecPoints; ind++) {
+ fRecCylR[module][ind]=obj.fRecCylR[module][ind];
+ fRecCylPhi[module][ind]=obj.fRecCylPhi[module][ind];
+ fRecCylZ[module][ind]=obj.fRecCylZ[module][ind];
+ }
+ }
+
+
+ return *this;
}
+//______________________________________________________________________
+void AliITSTrackerV1::DoTracking(Int_t evNumber,Int_t minTr,Int_t maxTr,
+ TFile *file, Bool_t realmass) {
+ // 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
+ printf("begin DoTracking - file %p\n",file);
+ gAlice->GetEvent(evNumber); //modificato per gestire hbt
+
+ AliKalmanTrack *kkprov;
+ kkprov->SetConvConst(100/0.299792458/0.2/fFieldFactor);
-//________________________________________________________________
+ TFile *cf=TFile::Open("AliTPCclusters.root");
+ AliTPCParam *digp= (AliTPCParam*)cf->Get("75x40_100x60_150x60");
+ if (!digp) { cerr<<"TPC parameters have not been found !\n"; getchar();}
+ cf->cd();
+ AliTPCtracker *tracker = new AliTPCtracker(digp,evNumber);
+ // Load clusters
+ tracker->LoadInnerSectors();
+ tracker->LoadOuterSectors();
-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
+ // Load tracks
+ TFile *tf=TFile::Open("AliTPCtracksSorted.root");
+ if (!tf->IsOpen()) {
+ cerr<<"Can't open AliTPCtracksSorted.root !\n";
+ return ;
+ } // end if
+ TObjArray tracks(200000);
+ char tname[100];
+ sprintf(tname,"TreeT_TPC_%d",evNumber);
- //Loop variables
+ TTree *tracktree=(TTree*)tf->Get(tname);
+ if (!tracktree) {cerr<<"Can't get a tree with TPC tracks !\n";}
+ TBranch *tbranch=tracktree->GetBranch("tracks");
+ Int_t nentr=(Int_t)tracktree->GetEntries();
+ Int_t kk;
- Int_t i;
+ AliTPCtrack *ioTrackTPC=0;
+ for (kk=0; kk<nentr; kk++) {
+ ioTrackTPC=new AliTPCtrack;
+ tbranch->SetAddress(&ioTrackTPC);
+ tracktree->GetEvent(kk);
+ tracker->CookLabel(ioTrackTPC,0.1);
+ tracks.AddLast(ioTrackTPC);
+ } // end for kk
+ delete tracker;
+ tf->Close();
- printf("begin DoTracking - file %p\n",file);
-
-/////////////////////////////////////// gets information on geometry ///////////////////////////////////
- AliITSgeoinfo *geoinfo = new AliITSgeoinfo;
+ Int_t nt = tracks.GetEntriesFast();
+ cerr<<"Number of found tracks "<<nt<<endl;
- AliITSgeom *g1 = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom();
-
- Int_t ll=1, dd=1;
- 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";
- }
- //getchar();
+ TVector vec(5);
+ TTree *tr=gAlice->TreeR();
+ Int_t nent=(Int_t)tr->GetEntries();
+ frecPoints = fITS->RecPoints();
- //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]<<" ";
- }
- //cout<<"\n"; getchar();
-
- geoinfo->Detx[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDx();
- geoinfo->Detz[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();
-
- geoinfo->Detx[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDx();
- geoinfo->Detz[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();
-
- geoinfo->Detx[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDx();
- geoinfo->Detz[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();
-
- //cout<<" Detx Detz\n";
- //for(Int_t la=0; la<6; la++) cout<<" "<<geoinfo->Detx[la]<<" "<<geoinfo->Detz[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();
-
- struct GoodTrack {
- Int_t lab,code;
- Float_t px,py,pz,x,y,z,pxg,pyg,pzg,ptg;
- Bool_t flag;
- };
-
+ Int_t numbpoints;
+ Int_t totalpoints=0;
+ Int_t *np = new Int_t[nent];
+ fvettid = new Int_t* [nent];
+ Int_t mod;
- gAlice->GetEvent(0);
-
- AliKalmanTrack *kkprov;
- kkprov->SetConvConst(100/0.299792458/0.2/gAlice->Field()->Factor());
+ for (mod=0; mod<nent; mod++) {
+ fvettid[mod]=0;
+ fITS->ResetRecPoints();
+ gAlice->TreeR()->GetEvent(mod);
+ numbpoints = frecPoints->GetEntries();
+ totalpoints+=numbpoints;
+ np[mod] = numbpoints;
+ //cout<<" mod = "<<mod<<" numbpoints = "<<numbpoints<<"\n";getchar();
+ fvettid[mod] = new Int_t[numbpoints];
+ Int_t ii;
+ for (ii=0;ii<numbpoints; ii++) *(fvettid[mod]+ii)=0;
+ } // end for mod
- 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();
-
-
- GoodTrack gt[15000];
- Int_t ngood=0;
- ifstream in("itsgood_tracks");
-
- cerr<<"Reading itsgood tracks...\n";
- while (in>>gt[ngood].lab>>gt[ngood].code
- >>gt[ngood].px >>gt[ngood].py>>gt[ngood].pz
- >>gt[ngood].x >>gt[ngood].y >>gt[ngood].z
- >>gt[ngood].pxg >>gt[ngood].pyg >>gt[ngood].pzg
- >>gt[ngood].ptg >>gt[ngood].flag) {
- ngood++;
- cerr<<ngood<<'\r';
- if (ngood==15000) {
- cerr<<"Too many good tracks !\n";
- break;
- }
- }
- if (!in.eof()) cerr<<"Read error (itsgood_tracks) !\n";
-
-
-// Load tracks
- TFile *tf=TFile::Open("AliTPCtracks.root");
- if (!tf->IsOpen()) {cerr<<"Can't open AliTPCtracks.root !\n"; return ;}
- TObjArray tracks(200000);
- TTree *tracktree=(TTree*)tf->Get("TPCf");
- if (!tracktree) {cerr<<"Can't get a tree with TPC tracks !\n";}
- TBranch *tbranch=tracktree->GetBranch("tracks");
- Int_t nentr=(Int_t)tracktree->GetEntries();
- Int_t kk;
- AliTPCtrack *iotracktpc=0;
- for (kk=0; kk<nentr; kk++) {
- iotracktpc=new AliTPCtrack;
- tbranch->SetAddress(&iotracktpc);
- tracktree->GetEvent(kk);
- 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);
- Int_t kkk=0;
-
- Double_t ptg=0.,pxg=0.,pyg=0.,pzg=0.;
+ AliTPCtrack *track=0;
- ////////////////////////////// good tracks definition in TPC ////////////////////////////////
-
- ofstream out1 ("AliITSTrag.out");
- for (i=0; i<ngood; i++) out1 << gt[i].ptg << "\n";
- out1.close();
+ if(minTr < 0) {minTr = 0; maxTr = nt-1;}
+ TVector vgeant(3);
- TVector vec(5);
- TTree *TR=gAlice->TreeR();
- Int_t nent=(Int_t)TR->GetEntries();
- TClonesArray *recPoints = ITS->RecPoints();
+ TTree tracktree1("TreeT","Tree with ITS tracks");
+ AliITSIOTrack *ioTrack=0;
+ tracktree1.Branch("ITStracks","AliITSIOTrack",&ioTrack,32000,0);
- Int_t numbpoints;
- Int_t totalpoints=0;
- Int_t *np = new Int_t[nent];
- Int_t **vettid = new Int_t* [nent];
- Int_t mod;
+ TDatabasePDG * db = new TDatabasePDG;
- for (mod=0; mod<nent; mod++) {
- vettid[mod]=0;
- ITS->ResetRecPoints();
- //gAlice->TreeR()->GetEvent(mod+1); //first entry in TreeR is empty
- gAlice->TreeR()->GetEvent(mod); //first entry in TreeR is empty
- numbpoints = recPoints->GetEntries();
- totalpoints+=numbpoints;
- np[mod] = numbpoints;
- //cout<<" mod = "<<mod<<" numbpoints = "<<numbpoints<<"\n"; getchar();
- vettid[mod] = new Int_t[numbpoints];
- Int_t ii;
- for (ii=0;ii<numbpoints; ii++) *(vettid[mod]+ii)=0;
- }
+ Int_t j;
+ for (j=minTr; j<=maxTr; j++) {
+ track=(AliTPCtrack*)tracks.UncheckedAt(j);
+ if (!track) continue;
+
+ /// mass definition ////////////////////////
+ Double_t mass=0.13956995;
+ Int_t pcode=211; // a pion by default
+ if(realmass) {
+ Int_t TPClabel=TMath::Abs( track->GetLabel() );
+ TParticle *p = (TParticle*)gAlice->Particle(TPClabel);
+ pcode=p->GetPdgCode();
+ // Int_t mothercode=p->GetFirstMother();
+ //if(mothercode>0 ) numofsecondaries++; else numofprimaries++;
+ }
+ //if(!pcode) pcode=211;
+ if(TMath::Abs(pcode)<20443) mass=db->GetParticle(pcode)->Mass();
+
+
+ ///////////////////////////////////////////////
+ /*
+ ////// propagation to the end of TPC //////////////
+ Double_t xk=77.415;
+ track->PropagateTo(xk, 28.94, 1.204e-3,mass); //Ne
+ xk -=0.01;
+ track->PropagateTo(xk, 44.77, 1.71,mass); //Tedlar
+ xk -=0.04;
+ track->PropagateTo(xk, 44.86, 1.45,mass); //kevlar
+ xk -=2.0;
+ track->PropagateTo(xk, 41.28, 0.029,mass); //Nomex
+ xk-=16;
+ track->PropagateTo(xk,36.2,1.98e-3,mass); //C02
+ xk -=0.01;
+ track->PropagateTo(xk, 24.01, 2.7,mass); //Al
+ xk -=0.01;
+ track->PropagateTo(xk, 44.77, 1.71,mass); //Tedlar
+ xk -=0.04;
+ track->PropagateTo(xk, 44.86, 1.45,mass); //kevlar
+ xk -=0.5;
+ track->PropagateTo(xk, 41.28, 0.029,mass); //Nomex
+ ////////////////////////////////////////////////////////////////////
+ */
+ // new propagation to the end of TPC
+ Double_t xk=80.;
+ // track->PropagateTo(xk,0.,0.); //Ne if it's still there //attenzione funziona solo se modifica in TPC
+ // Double_t xk=77.415;
+ track->PropagateTo(xk, 28.94, 1.204e-3);
+ xk-=0.005;
+ track->PropagateTo(xk, 44.77,1.71); //Tedlar
+ xk-=0.02;
+ track->PropagateTo(xk, 44.86, 1.45); //Kevlar
+ xk-=2.0;
+ track->PropagateTo(xk, 41.28, 0.029);//Nomex
+ xk-=0.02;
+ track->PropagateTo(xk, 44.86, 1.45); //Kevlar
+ xk-=0.005;
+ track->PropagateTo(xk, 44.77, 1.71); //Tedlar
- AliTPCtrack *track=0;
+ xk=61.;
+ // track->PropagateTo(xk,0.,0.); //C02
+ track->PropagateTo(xk,36.2,1.98e-3); //C02 //attenzione funziona solo se modifica in TPC
-
- if(min_t < 0) {min_t = 0; max_t = nt-1;}
+ xk -=0.005;
+ track->PropagateTo(xk, 24.01, 2.7); //Al
+ xk -=0.005;
+ track->PropagateTo(xk, 44.77, 1.71); //Tedlar
+ xk -=0.02;
+ track->PropagateTo(xk, 44.86, 1.45); //Kevlar
+ xk -=0.5;
+ track->PropagateTo(xk, 41.28, 0.029); //Nomex
+ xk -=0.02;
+ track->PropagateTo(xk, 44.86, 1.45); //Kevlar
+ xk -=0.005;
+ track->PropagateTo(xk, 44.77, 1.71); //Tedlar
+ xk -=0.005;
+ track->PropagateTo(xk, 24.01, 2.7); //Al
+ ////////////////////////////////////////////////////////////////////////////////////////////////////////
+ AliITSTrackV1 trackITS(*track);
+ trackITS.PutMass(mass); //new to add mass to track
+ if(fresult){ delete fresult; fresult=0;}
+ fresult = new AliITSTrackV1(trackITS);
-/*
- ///////////////////////////////// Definition of vertex end its error ////////////////////////////
- ////////////////////////// In the future it will be given by a method ///////////////////////////
- Double_t Vx=0.;
- Double_t Vy=0.;
- Double_t Vz=0.;
-
- Float_t sigmavx=0.0050; // 50 microns
- Float_t sigmavy=0.0050; // 50 microns
- Float_t sigmavz=0.010; // 100 microns
-
- //Vx+=gRandom->Gaus(0,sigmavx); Vy+=gRandom->Gaus(0,sigmavy); Vz+=gRandom->Gaus(0,sigmavz);
- TVector vertex(3), ervertex(3)
- vertex(0)=Vx; vertex(1)=Vy; vertex(2)=Vz;
- ervertex(0)=sigmavx; ervertex(1)=sigmavy; ervertex(2)=sigmavz;
- /////////////////////////////////////////////////////////////////////////////////////////////////
-*/
-
-
- TTree tracktree1("TreeT","Tree with ITS tracks");
- AliITSiotrack *iotrack=0;
- tracktree1.Branch("ITStracks","AliITSiotrack",&iotrack,32000,0);
+ AliITSTrackV1 primaryTrack(trackITS);
+ vgeant=(*fresult).GetVertex();
- ofstream out ("AliITSTra.out");
-
- Int_t j;
- for (j=min_t; j<=max_t; j++) {
- track=(AliTPCtrack*)tracks.UncheckedAt(j);
- Int_t flaglab=0;
- if (!track) continue;
- ////// elimination of not good tracks ////////////
- Int_t ilab=TMath::Abs(track->GetLabel());
- Int_t iii;
- for (iii=0;iii<ngood;iii++) {
- //cout<<" ilab, gt[iii].lab = "<<ilab<<" "<<gt[iii].lab<<"\n"; getchar();
- if (ilab==gt[iii].lab) {
- flaglab=1;
- ptg=gt[iii].ptg;
- pxg=gt[iii].pxg;
- pyg=gt[iii].pyg;
- pzg=gt[iii].pzg;
- break;
- }
- }
- //cout<<" j flaglab = " <<j<<" "<<flaglab<<"\n"; getchar();
- if (!flaglab) continue;
- //cout<<" j = " <<j<<"\n"; getchar();
-
-
- ////// new 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
- xk -=2.0;
- track->PropagateTo(xk, 41.28, 0.029); //Nomex
- xk-=16;
- track->PropagateTo(xk,36.2,1.98e-3); //C02
- xk -=0.01;
- track->PropagateTo(xk, 24.01, 2.7); //Al
- xk -=0.01;
- track->PropagateTo(xk, 44.77, 1.71); //Tedlar
- xk -=0.04;
- 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();
-
- // 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;
+ // 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();
Double_t signdv;
if(uniform<=0.5) signdv=-1.;
- 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);
-
- //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);
-
-/////////////////////////////////////////////////////////////////////////////////////////////////
-
- primarytrack.PrimaryTrack(rl);
- 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);
- /*
- trackITS.SetVertex(vertex); trackITS.SetErrorVertex(ervertex);
- result.SetVertex(vertex); result.SetErrorVertex(ervertex);
- */
-
- Tracking(trackITS,&result,recPoints,vettid, flagvert,rl,geoinfo);
-
- // 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 lab=track->GetLabel();
- //cout << " TPC track label = " << lab <<"\n"; // stampa
-
-
-//propagation to vertex
-
- Double_t rbeam=3.;
-
- result.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 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);
-
- // cout<<" Dr e dz alla fine = "<<Dr<<" "<<Dz<<"\n"; getchar();
- Double_t phi=result.Getphi();
- Double_t phivertex = phi - TMath::ASin(result.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);
-
-//////////////////////////////////////////////////////////////////////////////////////////
+ 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);
+ //cout<<" Dv e Zv = "<<dv<<" "<<zv<<"\n";
+ trackITS.SetDv(dv);
+ trackITS.SetZv(zv);
+ trackITS.SetsigmaDv(sigmaDv);
+ trackITS.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(frl);
+ TVector d2=primaryTrack.Getd2();
+ TVector tgl2=primaryTrack.Gettgl2();
+ TVector dtgl=primaryTrack.Getdtgl();
+ trackITS.Setd2(d2); trackITS.Settgl2(tgl2);
+ trackITS.Setdtgl(dtgl);
+ (*fresult).Setd2(d2); (*fresult).Settgl2(tgl2);
+ (*fresult).Setdtgl(dtgl);
+ /*
+ trackITS.SetVertex(vertex); trackITS.SetErrorVertex(ervertex);
+ (*result).SetVertex(vertex); (*result).SetErrorVertex(ervertex);
+ */
+ TList *list= new TList();
+
+ list->AddLast(&trackITS);
- Int_t idmodule,idpoint;
- if(NumofCluster >=5) { // cinque - sei
- //if(NumofCluster ==6) { // cinque - sei
-
-
- AliITSiotrack 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);
- Int_t 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);
-
- 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);
-
- Int_t il;
- for(il=0;il<6; il++){
- iotrack->SetIdPoint(il,result.GetIdPoint(il));
- iotrack->SetIdModule(il,result.GetIdModule(il));
- }
- tracktree1.Fill();
-
- //cout<<" labITS = "<<labITS<<"\n";
- //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++;
-
- 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);
- }
-
- Double_t difpt= (pt-ptg)/ptg*100.;
- 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++;
- 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++;
- Int_t r;
- for (r=0; r<9; r++) { out<<DataOut(r)<<" ";}
- out<<"\n";
- kkk=0;
-
-
- } // end if on NumofCluster
- //gObjectTable->Print(); // stampa memoria
- } // end for (int j=min_t; j<=max_t; j++)
+ fPtref=TMath::Abs( (trackITS).GetPt() );
+ if(fPtref>1.0) fChi2max=40.;
+ if(fPtref<=1.0) fChi2max=20.;
+ if(fPtref<0.4 ) fChi2max=100.;
+ if(fPtref<0.2 ) fChi2max=40.;
+ // if(fPtref<0.4 ) fChi2max=30.;
+ // if(fPtref<0.2 ) fChi2max=20.;
+ //if(fPtref<0.2 ) fChi2max=10.;
+ //if(fPtref<0.1 ) fChi2max=5.;
+ //cout << "\n Pt = " << fPtref <<"\n"; //stampa
+ RecursiveTracking(list);
+ 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();
+ } // end if
+ itot++; vecTotLabRef(itot)=vecLabRef(k);
+ if(vecLabRef(k)==0. && clustZ == -1.) vecTotLabRef(itot) =-3.;
+ } // end for k
+ } // end for lay
+ 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=(*fresult).GetNumClust();
+ //cout<<" progressive track number = "<<j<<"\n"; // stampa
+ Long_t labITS=(*fresult).GetLabel();
+ //cout << " ITS track label = " << labITS << "\n"; // stampa
+ Int_t lab=track->GetLabel();
+ //cout << " TPC track label = " << lab <<"\n"; // stampa
+ //propagation to vertex
+
+ Double_t rbeam=3.;
+ if((*fresult).DoNotCross(rbeam)) continue; //no intersection with beampipe
+ (*fresult).Propagation(rbeam);
+ 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((*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=(*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;
+ /////////////////////////////////////////////////////////////
+ Int_t idmodule,idpoint;
+ if(numOfCluster >=5) { // cinque - sei
+ //if(numOfCluster ==6) { // cinque - sei
+ AliITSIOTrack outTrack;
+ ioTrack=&outTrack;
+ 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);
+ 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);
+ ioTrack->SetTPCLabel(lab);
+ ioTrack->SetDz(dz);
+ Int_t il;
+ for(il=0;il<6; il++){
+ ioTrack->SetIdPoint(il,(*fresult).GetIdPoint(il));
+ ioTrack->SetIdModule(il,(*fresult).GetIdModule(il));
+ } // end for il
+ tracktree1.Fill();
+ for (il=0;il<6;il++) {
+ idpoint=(*fresult).GetIdPoint(il);
+ idmodule=(*fresult).GetIdModule(il);
+ if(idmodule>0.) *(fvettid[idmodule]+idpoint)=1;
+
+ ioTrack->SetIdPoint(il,idpoint);
+ ioTrack->SetIdModule(il,idmodule);
+ } // end for il
+ } // end if on numOfCluster
+ //gObjectTable->Print(); // stampa memoria
+ } // end for (int j=minTr; j<=maxTr; j++)
+ delete db;
+ static Bool_t first=kTRUE;
+ static TFile *tfile;
+ if(first) {
+ tfile=new TFile("itstracks.root","RECREATE");
+ //cout<<"I have opened itstracks.root file "<<endl;
+ } // end if
+ first=kFALSE;
+ tfile->cd();
+ tfile->ls();
+ char hname[30];
+ sprintf(hname,"TreeT%d",evNumber);
+ tracktree1.Write(hname);
- out.close();
-
-
- static Bool_t first=kTRUE;
- static TFile *tfile;
+ TTree *fAli=gAlice->TreeK();
+ TFile *fileAli=0;
+ if (fAli) fileAli =fAli->GetCurrentFile();
+ fileAli->cd();
+ ////////////////////////////////////////////////////////////////////
- if(first) {
- tfile=new TFile("itstracks.root","RECREATE");
- //cout<<"I have opened itstracks.root file "<<endl;
- }
- first=kFALSE;
- tfile->cd();
- tfile->ls();
+ printf("delete vectors\n");
+ if(np) delete [] np;
+ if(fvettid) delete [] fvettid;
+ if(fresult) {delete fresult; fresult=0;}
+}
+//______________________________________________________________________
+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
- char hname[30];
- sprintf(hname,"TreeT%d",evNumber);
+ //Rlayer[0]=4.; Rlayer[1]=7.; Rlayer[2]=14.9;
+ // Rlayer[3]=23.8; Rlayer[4]=39.1; Rlayer[5]=43.6; //vecchio
- tracktree1.Write(hname);
+ //////////////////////
+ Float_t sigmaphil[6], sigmazl[6];
+ sigmaphil[0]=1.44e-6/(fAvrad[0]*fAvrad[0]);
+ sigmaphil[1]=1.44e-6/(fAvrad[1]*fAvrad[1]);
+ sigmaphil[2]=1.444e-5/(fAvrad[2]*fAvrad[2]);
+ sigmaphil[3]=1.444e-5/(fAvrad[3]*fAvrad[3]);
+ sigmaphil[4]=4e-6/(fAvrad[4]*fAvrad[4]);
+ sigmaphil[5]=4e-6/(fAvrad[5]*fAvrad[5]);
+ sigmazl[0]=1e-2;
+ sigmazl[1]=1e-2;
+ sigmazl[2]=7.84e-4;
+ sigmazl[3]=7.84e-4;
+ sigmazl[4]=0.6889;
+ sigmazl[5]=0.6889;
+ ///////////////////////////////////////////////////////////
+ Int_t index;
+ AliITSgeom *g1 = fITS->GetITSgeom();
+ AliITSRecPoint *recp;
+ 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;
+ Float_t numClustRef = fresult->GetNumClust();
+ if((*trackITS).GetLayer()==1 ) {
+ chi2Now = trackITS->GetChi2();
+ Float_t numClustNow = trackITS->GetNumClust();
+ if(trackITS->GetNumClust())
+ chi2Now /= (Double_t)trackITS->GetNumClust();
+ chi2Ref = fresult->GetChi2();
+ 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;
+ } // end if
+ continue;
+ } // end if
+ if(trackITS->Getfnoclust()>=2) continue;
+ Float_t numClustNow = trackITS->GetNumClust();
+ if(numClustNow) {
+ chi2Now = trackITS->GetChi2();
-
- TTree *fAli=gAlice->TreeK();
- TFile *fileAli=0;
-
- if (fAli) fileAli =fAli->GetCurrentFile();
- fileAli->cd();
-
- ////////////////////////////////////////////////////////////////////////////////////////////////
-
- printf("delete vectors\n");
- if(np) delete [] np;
- if(vettid) delete [] vettid;
-
- if(geoinfo) delete geoinfo;
-
+ if(numClustNow<numClustRef && chi2Now>fresult->GetChi2()) continue;
+ //cout<<" chi2Now = "<<chi2Now<<"\n";
+
+ chi2Now/=numClustNow;
+ 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;
+ if((fPtref <= 0.6 && fPtref>0.2)&& chi2Now > 30.) continue;
+ if(fPtref <= 0.2 && chi2Now > 7.) continue;
+ /////////////////////////////
+ } // end if
+
+ Int_t layerInit = (*trackITS).GetLayer();
+ Int_t layernew = layerInit - 2;// -1 for new layer, -1 for matrix index
+ TList listoftrack;
+ Int_t ladp, ladm, detp,detm,ladinters,detinters;
+ Int_t layerfin=layerInit-1;
+ // cout<<"Prima di intersection \n";
+ Int_t outinters=Intersection(*trackITS,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;
+ } // end if
+ if(detm > 0 && detp > fNdet[layerfin-1]) {
+ idetot=6;
+ toucDet(3)=detm; toucDet(4)=detm; toucDet(5)=detm;
+ } // end if
+ if(detm <= 0 && detp <= fNdet[layerfin-1]) {
+ idetot=6;
+ toucDet(3)=detp; toucDet(4)=detp; toucDet(5)=detp;
+ } // end if
+ */
+ Float_t epsphi=5.0, epsz=5.0;
+ if(fPtref<0.2) {epsphi=3.; epsz=3.;}
+ // new definition of idetot e toucLad e toucDet to be
+ // transformed in a method
+ // these values could be modified
+ Float_t pigre=TMath::Pi();
+ Float_t rangephi=5., rangez=5.;
+ if(layerfin==1 || layerfin ==2){
+ rangephi=40.*epsphi*TMath::Sqrt(sigmaphil[layerfin-1]+
+ (*trackITS).GetSigmaphi());
+ rangez = 40.*epsz*TMath::Sqrt(sigmazl[layerfin-1]+
+ (*trackITS).GetSigmaZ());
+ } // end if
+ if(layerfin==3 || layerfin ==4){
+ //rangephi=30.*fepsphi*TMath::Sqrt(sigmaphil[layerfin-1]+
+ // (*trackITS).GetSigmaphi());
+ //rangez = 40.*fepsz*TMath::Sqrt(sigmazl[layerfin-1]+
+ // (*trackITS).GetSigmaZ());
+ rangephi=40.*epsphi*TMath::Sqrt(sigmaphil[layerfin-1]+
+ (*trackITS).GetSigmaphi());
+ rangez = 50.*epsz*TMath::Sqrt(sigmazl[layerfin-1]+
+ (*trackITS).GetSigmaZ());
+ } // end if
+ if(layerfin==5 || layerfin ==6){
+ rangephi=20.*epsphi*TMath::Sqrt(sigmaphil[layerfin-1]+
+ (*trackITS).GetSigmaphi());
+ rangez =5.*epsz*TMath::Sqrt(sigmazl[layerfin-1]+
+ (*trackITS).GetSigmaZ());
+ } // end if
+ Float_t phinters, zinters;
+ phinters=(*trackITS).Getphi();
+ zinters=(*trackITS).GetZ();
+ Float_t distz = 0.0;
+ Float_t phicm, phicp, distphim, distphip;
+ phicm=phinters;
+ if(phinters>fphimax[layerfin-1][ladm-1]) phicm=phinters-2*pigre; //corretto il 20-11-2001
+ distphim=TMath::Abs(phicm-fphimax[layerfin-1][ladm-1]); //corretto il 20-11-2001
+ phicp=phinters;
+ //cout<<" fNlad[layerfin-1] e ladp = "<<fNlad[layerfin-1]<<" "<<ladp<<endl;
+ if(phinters>fphimin[layerfin-1][ladp-1]) phicp=phinters-2.*pigre; //corretto il 20-11-2001
+ distphip=TMath::Abs(phicp-fphimin[layerfin-1][ladp-1]); //corretto il 20-11-2001
+ Int_t flagzmin=0;
+ Int_t flagzmax=0;
+ idetot=1;
+ toucLad(0)=ladinters; toucDet(0)=detinters;
+ if(detm>0) distz=TMath::Abs(zinters-fzmax[layerfin-1][detm-1]);
+ if(detm>0 && rangez>=distz){
+ flagzmin=1;
+ idetot++; toucLad(idetot-1)=ladinters; toucDet(idetot-1)=detm;
+ if(rangephi>=distphim){
+ idetot++;
+ toucLad(idetot-1)=ladm;
+ toucDet(idetot-1)=detinters;
+ idetot++;
+ toucLad(idetot-1)=ladm;
+ toucDet(idetot-1)=detm;
+ } // end if
+ if(rangephi>=distphip){
+ idetot++;
+ toucLad(idetot-1)=ladp;
+ toucDet(idetot-1)=detinters;
+ idetot++;
+ toucLad(idetot-1)=ladp;
+ toucDet(idetot-1)=detm;
+ } // end if
+ } //end detm>0....
+ if(detp<=fNdet[layerfin-1])
+ distz=TMath::Abs(zinters-fzmin[layerfin-1][detp-1]);
+ if(detp<=fNdet[layerfin-1] && rangez>=distz){
+ flagzmax=1;
+ idetot++; toucLad(idetot-1)=ladinters; toucDet(idetot-1)=detp;
+ if(rangephi>=distphim){
+ idetot++; toucLad(idetot-1)=ladm; toucDet(idetot-1)=detp;
+ if(flagzmin == 0) {
+ idetot++;
+ toucLad(idetot-1)=ladm;
+ toucDet(idetot-1)=detinters;
+ } // end if
+ } // end if
+ if(rangephi>=distphip){
+ idetot++;
+ toucLad(idetot-1)=ladp;
+ toucDet(idetot-1)=detp;
+ if(flagzmin == 0) {
+ idetot++;
+ toucLad(idetot-1)=ladp;
+ toucDet(idetot-1)=detinters;
+ } // end if
+ } // end if
+ } //end detm<fNdet[.......
+
+ if(flagzmin == 0 && flagzmax==0){
+ if(rangephi>=distphim){
+ idetot++;
+ toucLad(idetot-1)=ladm;
+ toucDet(idetot-1)=detinters;
+ } // end if
+ if(rangephi>=distphip){
+ idetot++;
+ toucLad(idetot-1)=ladp;
+ toucDet(idetot-1)=detinters;
+ } // end if
+ } // end if
+ ////////////////////////////////////////////////////////////
+ Int_t iriv;
+ for (iriv=0; iriv<idetot; iriv++) { //for on detectors
+ ///////////////////////////////////////////////////////
+ /*** Rec points sorted by module *****/
+ /**************************************/
+ Int_t indexmod;
+ indexmod = g1->GetModuleIndex(lycur,(Int_t)toucLad(iriv),
+ (Int_t)toucDet(iriv));
+ fITS->ResetRecPoints();
+ gAlice->TreeR()->GetEvent(indexmod);
+ Int_t npoints=frecPoints->GetEntries();
+
+ Int_t indnew;
+ for(indnew=0; indnew<npoints; indnew++){
+ if (*(fvettid[indexmod]+indnew)==0)
+ recp =(AliITSRecPoint*)frecPoints->UncheckedAt(indnew);
+ else
+ continue;
+ TVector cluster(3),vecclust(9);
+ //vecclust(6)=vecclust(7)=vecclust(8)=-1.;
+ Double_t sigma[2];
+ // now vecclust is with cylindrical cohordinates
+ vecclust(0)=(Float_t)fRecCylR[indexmod][indnew];
+ vecclust(1)=(Float_t)fRecCylPhi[indexmod][indnew];
+ vecclust(2)=(Float_t)fRecCylZ[indexmod][indnew];
+ vecclust(3) = (Float_t)recp->fTracks[0];
+ vecclust(4) = (Float_t)indnew;
+ vecclust(5) = (Float_t)indexmod;
+ vecclust(6) = (Float_t)recp->fTracks[0];
+ vecclust(7) = (Float_t)recp->fTracks[1];
+ vecclust(8) = (Float_t)recp->fTracks[2];
+ sigma[0] = (Double_t) recp->GetSigmaX2();
+ sigma[1] = (Double_t) recp->GetSigmaZ2();
+
+ cluster(0)=fRecCylR[indexmod][indnew];
+ cluster(1)=fRecCylPhi[indexmod][indnew];
+ cluster(2)=fRecCylZ[indexmod][indnew];
+
+ // cout<<" layer = "<<play<<"\n";
+ // cout<<" cluster prima = "<<vecclust(0)<<" "
+ // <<vecclust(1)<<" "
+ // <<vecclust(2)<<"\n"; getchar();
+
+ Float_t sigmatotphi, sigmatotz;
+ // 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;
+ } // end if
+ Double_t sigmanew[2];
+ sigmanew[0]= sigmaphi;
+ sigmanew[1]=sigma[1];
+ Double_t m[2];
+ m[0]=cluster(1);
+ m[1]=cluster(2);
+ // Double_t chi2pred=newTrack->GetPredChi2(m,sigmanew);
+ // cout<<" chi2pred = "<<chi2pred<<"\n";
+ // if(chi2pred>fChi2max) continue; //aggiunto il 30-7-2001
+ if(iriv == 0) flaghit=1;
+ (*newTrack).AddMS(frl); // add the multiple scattering
+ //matrix to the covariance matrix
+ (*newTrack).AddEL(frl,1.,0);
+
+ if(fflagvert){
+ KalmanFilterVert(newTrack,cluster,sigmanew);
+ //KalmanFilterVert(newTrack,cluster,sigmanew,chi2pred);
+ }else{
+ KalmanFilter(newTrack,cluster,sigmanew);
+ } // end if
+ (*newTrack).PutCluster(layernew, vecclust);
+ newTrack->AddClustInTrack();
+ listoftrack.AddLast(newTrack);
+ } // end for indnew
+ } // end of for on detectors (iriv)
+ }//end if(outinters==0)
+
+ if(flaghit==0 || outinters==-2) {
+ AliITSTrackV1 *newTrack = new AliITSTrackV1(*trackITS);
+ (*newTrack).Setfnoclust();
+ (*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);
+ } // end if
+
+ //gObjectTable->Print(); // stampa memoria
+
+ RecursiveTracking(&listoftrack);
+ listoftrack.Delete();
+ } // end of for on tracks (index)
+
+ //gObjectTable->Print(); // stampa memoria
+}
+//______________________________________________________________________
+Int_t AliITSTrackerV1::Intersection(AliITSTrackV1 &track,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
+
+ Double_t rk=fAvrad[layer-1];
+ 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";
+
+ TVector det(9);
+ TVector listDet(2);
+ TVector distZCenter(2);
+
+ Int_t iz=0;
+ Int_t iD;
+ for(iD = 1; iD<= fNdet[layer-1]; iD++) {
+ if(zinters > fzmin[layer-1][iD-1] && zinters <= fzmax[layer-1][iD-1]) {
+ if(iz>1) {
+ cout<< " Errore su iz in Intersection \n";
+ getchar();
+ }else {
+ listDet(iz)= iD; distZCenter(iz)=TMath::Abs(zinters-det(2));
+ iz++;
+ } // end if
+ } // end if
+ } // end for iD
+
+ 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));
+
+ 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++) {
+ Double_t phimin=fphimin[layer-1][iLd-1];
+ Double_t phimax=fphimax[layer-1][iLd-1];
+ Double_t phidet=fphidet[layer-1][iLd-1];
+ Double_t phiconfr=phinters;
+ if(phimin>phimax) {
+ //if(phimin <5.5) {cout<<" Error in Intersection for phi \n";
+ // getchar();}
+ phimin-=(2.*pigre);
+ if(phinters>(1.5*pigre)) phiconfr=phinters-(2.*pigre);
+ if(phidet>(1.5*pigre)) phidet-=(2.*pigre);
+ } // end if
+ 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++;
+ } // end if
+ } // end if
+ } // end for iLd
+ 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]){
+void AliITSTrackerV1::KalmanFilterVert(AliITSTrackV1 *newTrack,
+ TVector &cluster,Double_t sigma[2]
+ /*, Double_t chi2pred*/){
+ //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;
+ } // end if
+ } // end for i
+ } // end for 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;
+ } // end for i
+ }// end if
+ //
+ 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;
+ } // end for j
+ } // end if
+ //
+ if(!big) {
+ d=0.;
+ cout << "Singular matrix\n";
+ } // end if
+ for(i=0; i<kn; i++) {
+ if(i == k) { continue; }
+ r[i][k]=r[i][k]/(-big);
+ } // end for i
+ //
+ 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];
+ } // end for j
+ } // end of ri
+ //
+ for(j=0; j<kn; j++) {
+ if(j == k) continue;
+ r[k][j]=r[k][j]/big;
+ } // end for j
+ //
+ d=d*big;
+ //
+ r[k][k]=1./big;
+ } // end for k
+ //
+ 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;
+ } // end for j
+ } // end if i
+ 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;
+ } // end for i
+ } // end if
+ } // end for k
+ ////////////////////////////////////////////////////////////////////
+ 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;
+ } // end if
+ } // end for i
+ } // end for 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;
+ } // end for i
+ } // end if
+ //
+ 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;
+ } // end for j
+ } // end if
+ //
+ if(!big) {
+ d=0.;
+ cout << "Singular matrix\n";
+ } // end if
+ for(i=0; i<kn; i++) {
+ if(i == k) continue;
+ vmc[i][k]=vmc[i][k]/(-big);
+ } // end for i
+ //
+ 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];
+ } // end for j
+ } // end for i
+ //
+ for(j=0; j<kn; j++) {
+ if(j == k) continue;
+ vmc[k][j]=vmc[k][j]/big;
+ } // end for j
+ //
+ d=d*big;
+ //
+ vmc[k][k]=1./big;
+ } // end for k
+ //
+ 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;
+ } // end for j
+ } // end if i>k
+ 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;
+ } // end for i
+ } // end if j>k
+ } // end for k
+ ////////////////////////////////////////////////////////////////////
+ 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);
+ //cout<<" chi2 kalman = "<<chi2<<"\n"; getchar();
+ newTrack->SetChi2(newTrack->GetChi2()+chi2);
+ // newTrack->SetChi2(newTrack->GetChi2()+chi2pred);
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff