-
/**************************************************************************
* Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. *
* *
* provided "as is" without express or implied warranty. *
**************************************************************************/
+/* $Id$ */
+
////////////////////////////////////////////////////
// Stand alone tracker class //
// Origin: Elisabetta Crescio //
////////////////////////////////////////////////////
#include <stdlib.h>
-#include "TArrayI.h"
+
+#include <TArrayI.h>
#include <TBranch.h>
-#include <TMath.h>
#include <TObjArray.h>
#include <TTree.h>
-#include "AliRun.h"
+
+#include "AliESD.h"
+#include "AliESDVertex.h"
+#include "AliESDtrack.h"
+#include "AliITSVertexer.h"
#include "AliITSclusterTable.h"
-#include "AliITSclusterV2.h"
+#include "AliITSRecPoint.h"
#include "AliITSgeom.h"
-#include "AliITSRiemannFit.h"
-#include "AliITStrackerSA.h"
#include "AliITStrackSA.h"
-#include "AliITSVertexer.h"
-#include "AliESDVertex.h"
-#include "AliESD.h"
-#include "AliESDtrack.h"
+#include "AliITStrackerSA.h"
+#include "AliRun.h"
ClassImp(AliITStrackerSA)
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA():AliITStrackerV2(){
+AliITStrackerSA::AliITStrackerSA():AliITStrackerMI(){
// Default constructor
Init();
}
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom):AliITStrackerV2(geom)
+AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom):AliITStrackerMI(geom)
{
// Standard constructor (Vertex is known and passed to this obj.)
Init();
}
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom, AliESDVertex *vert):AliITStrackerV2(geom)
+AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom, AliESDVertex *vert):AliITStrackerMI(geom)
{
// Standard constructor (Vertex is known and passed to this obj.)
Init();
}
-//______________________________________________________________________
-AliITStrackerSA::AliITStrackerSA(const AliITStrackerSA &trkr) :
- AliITStrackerV2(trkr) {
- // Copy constructor
- // Copies are not allowed. The method is protected to avoid misuse.
- Error("AliITStrackerSA","Copy constructor not allowed\n");
-}
-
-//______________________________________________________________________
-AliITStrackerSA& AliITStrackerSA::operator=(const
- AliITStrackerSA& /* trkr */){
- // Assignment operator
- // Assignment is not allowed. The method is protected to avoid misuse.
- Error("= operator","Assignment operator not allowed\n");
- return *this;
-}
-
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom, AliITSVertexer *vertexer):AliITStrackerV2(geom)
+AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom, AliITSVertexer *vertexer):AliITStrackerMI(geom)
{
// Standard constructor (Vertex is unknown - vertexer is passed to this obj)
Init();
}
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA(AliITStrackerSA& tracker):AliITStrackerV2(){
+AliITStrackerSA::AliITStrackerSA(const AliITStrackerSA& tracker):AliITStrackerMI(){
// Copy constructor
fPhiEstimate = tracker.fPhiEstimate;
for(Int_t i=0;i<2;i++){
}
fVertexer = tracker.fVertexer;
fGeom = tracker.fGeom;
- fTable = tracker.fTable;
fListOfTracks = tracker.fListOfTracks;
+ for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ fCluLayer[i] = tracker.fCluLayer[i];
+ fCluCoord[i] = tracker.fCluCoord[i];
+ }
+}
+//______________________________________________________________________
+AliITStrackerSA& AliITStrackerSA::operator=(const AliITStrackerSA& /*source*/){
+ // Assignment operator. This is a function which is not allowed to be
+ // done.
+ Error("operator=","Assignment operator not allowed\n");
+ return *this;
}
//____________________________________________________________________________
}
fVert = 0;
fVertexer = 0;
- fGeom = 0;
+
if(fPhiWin)delete []fPhiWin;
if(fLambdaWin)delete []fLambdaWin;
- fTable =0;
fListOfTracks->Delete();
+ if(fCluLayer){
+ for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ if(fCluLayer[i]){
+ fCluLayer[i]->Delete();
+ delete fCluLayer[i];
+ }
+ }
+ delete [] fCluLayer;
+ }
+ if(fCluCoord){
+ for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ if(fCluCoord[i]){
+ fCluCoord[i]->Delete();
+ delete fCluCoord[i];
+ }
+ }
+ delete [] fCluCoord;
}
+
+ fGeom = 0;
+}
//____________________________________________________________________________
void AliITStrackerSA::Init(){
fVertexer = 0;
fGeom = 0;
SetWindowSizes();
- fTable = 0;
fITSclusters = 0;
SetSixPoints();
fListOfTracks=new TObjArray(0,0);
+ fCluLayer = 0;
+ fCluCoord = 0;
}
//_______________________________________________________________________
void AliITStrackerSA::ResetForFinding(){
fPointc[1]=0;
fListOfTracks->Delete();
}
-//____________________________________________________________________________
-void AliITStrackerSA::FindTracks(TTree *out,Int_t evnumber){
-
- /**************************************************************************
- * This function finds primary tracks.
- * *
- * *
- * Example: to execute function with only the ITS (no combined tracking *
- * with TPC+ITS) and requiring 5/6 points to define a good track *
- * call SetSixPoinbts(kFALSE) in advance and then *
- * use: FindTracks(treein,treeout,evnumber) *
- * to execute combined tracking, before using FindTracks, use *
- * UseFoundTracksV2 *
- *************************************************************************/
-
- if(!fITSclusters){
- Fatal("FindTracks","ITS cluster tree is not accessed - Abort!!!\n Please use method SetClusterTree to pass the pointer to the tree\n");
- exit(1);
- }
- //Get primary vertex
- if(fVertexer){
- if(fVert)delete fVert;
- fVert = fVertexer->FindVertexForCurrentEvent(evnumber);
- }
- else {
- gAlice->GetEvent(evnumber);
- if(!fVert){
- Fatal("FindTracks","Vertex is missing\n");
- return;
- }
- }
- Double_t primaryVertex[3];
- Double_t errorsprimvert[3];
- fVert->GetXYZ(primaryVertex);
- fVert->GetSigmaXYZ(errorsprimvert);
- if(errorsprimvert[0]==0 || errorsprimvert[1]==0){
- Warning("FindTracks","Set errors on vertex positions x and y at 0.0001");
- errorsprimvert[0]=0.0001;
- errorsprimvert[1]=0.0001;
- }
- fVert->PrintStatus();
-
-
- //Fill array with cluster indices for each module
- if(!fTable){
- fTable = new AliITSclusterTable(fGeom,this,primaryVertex);
- fTable->FillArray(fITSclusters);
- fTable->FillArrayCoorAngles();
- }
-
-
-//Fill tree for found tracks
- AliITStrackV2* outrack=0;
- TBranch* branch=out->Branch("tracks","AliITStrackV2",&outrack,32000,0);
- if (!branch) out->Branch("tracks","AliITStrackV2",&outrack,32000,3);
- else branch->SetAddress(&outrack);
-
-
- Int_t * firstmod = new Int_t[fGeom->GetNlayers()];
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
- firstmod[i]=fGeom->GetModuleIndex(i+1,1,1);
- }
- // firstmod [i] number of the first module in the ITS layer i.
-
- AliITSlayer &layer=fgLayers[0]; // first layer
- Int_t ntrack=0;
- Int_t dim=layer.GetNumberOfClusters();
- //loop on the different windows
- for(Int_t nloop=0;nloop<fNloop;nloop++){
- for(Int_t ncl=0;ncl<dim;ncl++){
- //loop starting from layer 0
- ResetForFinding();
- Int_t pflag=0;
- AliITSclusterV2* cl = layer.GetCluster(ncl);
- if(cl->IsUsed()==1) continue;
- if(cl->TestBit(kSAflag)==kTRUE) continue;
-
- fPhic = fTable->GetPhiCluster(0,ncl);
- fLambdac = fTable->GetLambdaCluster(0,ncl);
- fPhiEstimate = fPhic;
- AliITStrackSA* trs = new AliITStrackSA();
- fPoint1[0]=primaryVertex[0];
- fPoint1[1]=primaryVertex[1];
- fPoint2[0]=fTable->GetXCluster(0,ncl);
- fPoint2[1]=fTable->GetYCluster(0,ncl);
-
- Int_t * nn = new Int_t[fGeom->GetNlayers()];//counter for clusters on each layer
- for(Int_t i=0;i<fGeom->GetNlayers();i++){ nn[i]=0;}
- nn[0] = SearchClusters(0,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag,fTable);
- nn[1] = SearchClusters(1,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag,fTable);
-
- if(nn[1]>0){
- pflag=1;
- fPoint3[0] = fPointc[0];
- fPoint3[1] = fPointc[1];
- }
- nn[2] = SearchClusters(2,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag,fTable);
- if(nn[1]==0 && nn[2]==0) pflag=0;
- if(nn[2]!=0 && nn[1]!=0){ pflag=1; UpdatePoints();}
- if(nn[2]!=0 && nn[1]==0){
- pflag=1;
- fPoint3[0]=fPointc[0];
- fPoint3[1]=fPointc[1];
- }
-
- nn[3] = SearchClusters(3,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag,fTable);
- pflag=1;
- if(nn[3]!=0) UpdatePoints();
- nn[4] = SearchClusters(4,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag,fTable);
- pflag=1;
- if(nn[4]!=0) UpdatePoints();
- nn[5] = SearchClusters(5,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag,fTable);
-
-
- Int_t layOK=0;
- Int_t numberofpoints;
- if(fSixPoints) numberofpoints=6; //check of the candidate track
- else numberofpoints=5; //if track is good (with the required number
- for(Int_t nnp=0;nnp<fGeom->GetNlayers();nnp++){ //of points) it is written on file
- if(nn[nnp]!=0) layOK+=1;
- }
- if(layOK>=numberofpoints){
- AliITStrackV2* tr2 = FitTrack(trs,primaryVertex,errorsprimvert);
- if(tr2==0){
- Int_t nct = trs->GetNumberOfClustersSA();
- while(nct--){
- Int_t index = trs->GetClusterIndexSA(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag);
- }
- continue;
- }
- outrack=tr2;
- out->Fill();
- ntrack++;
- Int_t nct = tr2->GetNumberOfClusters();
-
- while(nct--){
- Int_t index = tr2->GetClusterIndex(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- kl->SetBit(kSAflag);
-
- }
- }
- else{
- Int_t nct = trs->GetNumberOfClustersSA();
- while(nct--){
- Int_t index = trs->GetClusterIndexSA(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag);
- }
- }
- delete trs;
-
- }//end loop on clusters of layer1
-
- }//end loop2
-
- //if 5/6 points are required, second loop starting
- //from second layer, to find tracks with point of
- //layer 1 missing
-
- if(!fSixPoints){
- // counter for clusters on each layer
- Int_t * nn = new Int_t[fGeom->GetNlayers()-1];
- for(Int_t nloop=0;nloop<fNloop;nloop++){
- AliITSlayer &layer2=fgLayers[1]; //loop on layer 2
- Int_t ncl2=layer2.GetNumberOfClusters();
- while(ncl2--){ //loop starting from layer 2
- ResetForFinding();
- Int_t pflag=0;
- AliITSclusterV2* cl = layer2.GetCluster(ncl2);
- if(cl->IsUsed()==1) continue;
- if(cl->TestBit(kSAflag)==kTRUE) continue;
- fPhic = fTable->GetPhiCluster(1,ncl2);
- fLambdac = fTable->GetLambdaCluster(1,ncl2);
- fPhiEstimate = fPhic;
- AliITStrackSA* trs = new AliITStrackSA();
-
- fPoint1[0]=primaryVertex[0];
- fPoint1[1]=primaryVertex[1];
- fPoint2[0]=fTable->GetXCluster(1,ncl2);;
- fPoint2[1]=fTable->GetYCluster(1,ncl2);;
-
- for(Int_t kk=0;kk<fGeom->GetNlayers()-1;kk++)nn[kk] = 0;
- for(Int_t kk=0;kk<fGeom->GetNlayers()-1;kk++){
- nn[kk] = SearchClusters(kk+1,fPhiWin[nloop],fLambdaWin[nloop],
- trs,primaryVertex[2],pflag,fTable);
- if(nn[kk]==0)break;
- if(kk>0){
- UpdatePoints();
- pflag = 1;
- }
- }
- Int_t fl=0;
- for(Int_t nnp=0;nnp<fGeom->GetNlayers()-1;nnp++){
- if(nn[nnp]!=0) fl+=1;
- }
- if(fl>=5){ // 5/6
- AliITStrackV2* tr2 = FitTrack(trs,primaryVertex,errorsprimvert);
- if(tr2==0){
- Int_t nct = trs->GetNumberOfClustersSA();
- while(nct--){
- Int_t index = trs->GetClusterIndexSA(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag);
- }
- continue;
- }
- outrack=tr2;
- out->Fill();
- Int_t nct = tr2->GetNumberOfClusters();
- while(nct--){
- Int_t index = tr2->GetClusterIndex(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl==0) continue;
- kl->SetBit(kSAflag);
- }
- }
- else{
- Int_t nct = trs->GetNumberOfClustersSA();
- while(nct--){
- Int_t index = trs->GetClusterIndexSA(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl==0) continue;
- if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag);
- }
- }
- delete trs;
- }//end loop on clusters of layer2
- }
- delete [] nn;
- } // if(!fSixPoints....
-
- delete [] firstmod;
- delete fTable; fTable=0;
-}
+
//______________________________________________________________________
Int_t AliITStrackerSA::FindTracks(AliESD* event){
- // Track finder using the ESD object
+// Track finder using the ESD object
+
+ //controllare numero cluster sui layer1 e 2 (morti?)
+ //non trova tracce...controllare..
if(!fITSclusters){
Fatal("FindTracks","ITS cluster tree is not accessed - Abort!!!\n Please use method SetClusterTree to pass the pointer to the tree\n");
return -1;
}
+
+
+ //Reads event and mark clusters of traks already found, with flag kITSin
+ Int_t nentr=event->GetNumberOfTracks();
+ while (nentr--) {
+ AliESDtrack *track=event->GetTrack(nentr);
+ if (track->GetStatus()&AliESDtrack::kITSin==AliESDtrack::kITSin){
+ UInt_t idx[6];
+ Int_t ncl = track->GetITSclusters(idx);
+ for(Int_t k=0;k<ncl;k++){
+ AliITSRecPoint* cll = (AliITSRecPoint*)GetCluster(idx[k]);
+ cll->SetBit(kSAflag);
+ }
+ }
+ }
+
+ Double_t primaryVertex[3];
+ event->GetVertex()->GetXYZ(primaryVertex);
+ //Creates TClonesArray with clusters for each layer. The clusters already used
+ //by AliITStrackerMI are not considered
+
+ Int_t nclusters[6]={0,0,0,0,0,0};
+ Int_t dmar[6]={0,0,0,0,0,0};
+ fCluLayer = new TClonesArray*[fGeom->GetNlayers()];
+ fCluCoord = new TClonesArray*[fGeom->GetNlayers()];
+
+ for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ AliITSlayer &layer=fgLayers[i];
+ for(Int_t cli=0;cli<layer.GetNumberOfClusters();cli++){
+ AliITSRecPoint* cls = (AliITSRecPoint*)layer.GetCluster(cli);
+ if(cls->TestBit(kSAflag)==kTRUE) continue; //clusters used by TPC prol.
+ if(cls->GetQ()==0) continue; //fake clusters dead zones
+ nclusters[i]++;
+ }
+ dmar[i]=0;
+ fCluLayer[i] = new TClonesArray("AliITSRecPoint",nclusters[i]);
+ fCluCoord[i] = new TClonesArray("AliITSclusterTable",nclusters[i]);
+ }
+
+
+ Int_t * firstmod = new Int_t[fGeom->GetNlayers()];
+ for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ firstmod[i]=fGeom->GetModuleIndex(i+1,1,1);
+ }
+
+ for(Int_t ilay=0;ilay<fGeom->GetNlayers();ilay++){
+ TClonesArray &clulay = *fCluLayer[ilay];
+ TClonesArray &clucoo = *fCluCoord[ilay];
+ AliITSlayer &layer=fgLayers[ilay];
+ for(Int_t cli=0;cli<layer.GetNumberOfClusters();cli++){
+ AliITSRecPoint* cls = (AliITSRecPoint*)layer.GetCluster(cli);
+ if(cls->TestBit(kSAflag)==kTRUE) continue;
+ if(cls->GetQ()==0) continue;
+ Double_t phi=0;Double_t lambda=0;
+ Float_t x=0;Float_t y=0;Float_t z=0;
+ Float_t sx=0;Float_t sy=0;Float_t sz=0;
+ Int_t module = cls->GetDetectorIndex()+firstmod[ilay];
+ GetCoorAngles(cls,module,phi,lambda,x,y,z,primaryVertex);
+ GetCoorErrors(cls,module,sx,sy,sz);
+ new (clulay[dmar[ilay]]) AliITSRecPoint(*cls);
+ new (clucoo[dmar[ilay]]) AliITSclusterTable(x,y,z,sx,sy,sz,phi,lambda,cli);
+ dmar[ilay]++;
+ }
+ }
+
//Get primary vertex
- Double_t errorsprimvert[3];
- Double_t primaryVertex[3];
- event->GetVertex()->GetXYZ(primaryVertex);
- event->GetVertex()->GetSigmaXYZ(errorsprimvert);
-
- if(errorsprimvert[0]==0 || errorsprimvert[1]==0){
- // Warning("FindTracks","Set errors on vertex positions x and y at 0.005");
- errorsprimvert[0]=0.005;
- errorsprimvert[1]=0.005;
- }
-
- //Fill array with cluster indices for each module
- if(!fTable){
- fTable = new AliITSclusterTable(fGeom,this,primaryVertex);
- fTable->FillArray(fITSclusters);
- fTable->FillArrayCoorAngles();
- }
- Int_t * firstmod = new Int_t[fGeom->GetNlayers()];
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
- firstmod[i]=fGeom->GetModuleIndex(i+1,1,1);
- }
- // firstmod [i] number of the first module in the ITS layer i.
-
-
- AliITSlayer &layer=fgLayers[0];
- Int_t ntrack=0;
- Int_t dim=layer.GetNumberOfClusters();
- //loop on the different windows
- for(Int_t nloop=0;nloop<fNloop;nloop++){
- for(Int_t ncl=0;ncl<dim;ncl++){ //loop starting from layer 0
-
- ResetForFinding();
- Int_t pflag=0;
- AliITSclusterV2* cl = (AliITSclusterV2*)layer.GetCluster(ncl);
- if(cl==0) continue;
- if(cl->IsUsed()==1) continue;
- if(cl->TestBit(kSAflag)==kTRUE) continue;
-
- fPhic = fTable->GetPhiCluster(0,ncl);
- fLambdac = fTable->GetLambdaCluster(0,ncl);
- fPhiEstimate = fPhic;
- AliITStrackSA* trs = new AliITStrackSA();
- fPoint1[0]=primaryVertex[0];
- fPoint1[1]=primaryVertex[1];
- fPoint2[0]=fTable->GetXCluster(0,ncl);
- fPoint2[1]=fTable->GetYCluster(0,ncl);
- Int_t * nn = new Int_t[fGeom->GetNlayers()];//counter for clusters on each layer
- for(Int_t i=0;i<fGeom->GetNlayers();i++){ nn[i]=0;}
- nn[0] = SearchClusters(0,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag,fTable);
-
- nn[1] = SearchClusters(1,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag,fTable);
+ Int_t ntrack=0;
+ //loop on the different windows
+ for(Int_t nloop=0;nloop<fNloop;nloop++){
+ for(Int_t ncl=0;ncl<fCluLayer[0]->GetEntries();ncl++){ //loop starting from layer 0
+
+ ResetForFinding();
+ Int_t pflag=0;
+
+ AliITSRecPoint* cl = (AliITSRecPoint*)fCluLayer[0]->At(ncl);
+
+ if(!cl) continue;
+
+
+ if (cl->GetQ()<=0) continue;
+
+ AliITSclusterTable* arr = (AliITSclusterTable*)GetClusterCoord(0,ncl);
+ fPhic = arr->GetPhi();
+ fLambdac = arr->GetLambda();
+ if (TMath::Abs(fLambdac)>0.26*TMath::Pi()) continue;
+ fPhiEstimate = fPhic;
+ AliITStrackSA* trs = new AliITStrackSA();
+ fPoint1[0]=primaryVertex[0];
+ fPoint1[1]=primaryVertex[1];
+
+
+ fPoint2[0]=arr->GetX();
+ fPoint2[1]=arr->GetY();
+ Int_t * nn = new Int_t[fGeom->GetNlayers()];//counter for clusters on each layer
+ for(Int_t i=0;i<fGeom->GetNlayers();i++){ nn[i]=0;}
+ nn[0] = SearchClusters(0,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag);
+
+ nn[1] = SearchClusters(1,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag);
if(nn[1]>0){
pflag=1;
fPoint3[0] = fPointc[0];
fPoint3[1] = fPointc[1];
}
- nn[2] = SearchClusters(2,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag,fTable);
+ nn[2] = SearchClusters(2,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag);
if(nn[1]==0 && nn[2]==0) pflag=0;
if(nn[2]!=0 && nn[1]!=0){ pflag=1; UpdatePoints();}
if(nn[2]!=0 && nn[1]==0){
fPoint3[1]=fPointc[1];
}
- nn[3] = SearchClusters(3,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag,fTable);
+ nn[3] = SearchClusters(3,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag);
pflag=1;
if(nn[3]!=0) UpdatePoints();
- nn[4] = SearchClusters(4,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag,fTable);
+ nn[4] = SearchClusters(4,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag);
pflag=1;
if(nn[4]!=0) UpdatePoints();
- nn[5] = SearchClusters(5,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag,fTable);
+ nn[5] = SearchClusters(5,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag);
Int_t layOK=0;
if(nn[nnp]!=0) layOK+=1;
}
if(layOK>=numberofpoints){
- AliITStrackV2* tr2 = FitTrack(trs,primaryVertex,errorsprimvert);
- if(tr2==0){
- Int_t nct = trs->GetNumberOfClustersSA();
- while(nct--){
- Int_t index = trs->GetClusterIndexSA(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag);
-
- }
- continue;
- }
+
+ AliITStrackV2* tr2 = FitTrack(trs,primaryVertex);
+ if(tr2==0) continue;
+
AliESDtrack outtrack;
outtrack.UpdateTrackParams(tr2,AliESDtrack::kITSin);
event->AddTrack(&outtrack);
ntrack++;
- Int_t nct = tr2->GetNumberOfClusters();
- while(nct--){
- Int_t index = tr2->GetClusterIndex(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- kl->SetBit(kSAflag);
-
- }
- }
- else{
- Int_t nct = trs->GetNumberOfClustersSA();
- while(nct--){
- Int_t index = trs->GetClusterIndexSA(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag);
-
- }
+
}
+
+
delete trs;
delete[] nn;
- }//end loop on clusters of layer1
+ }//end loop on clusters of layer1
- }//end loop2
-
-
-
- //if 5/6 points are required, second loop starting
- //from second layer, to find tracks with point of
- //layer 1 missing
+ //end loop2
+ }
- if(!fSixPoints){
- // counter for clusters on each layer
- Int_t * nn = new Int_t[fGeom->GetNlayers()-1];
- for(Int_t nloop=0;nloop<fNloop;nloop++){
- AliITSlayer &layer2=fgLayers[1];
- Int_t ncl2=layer2.GetNumberOfClusters();
- while(ncl2--){ //loop starting from layer 2
- ResetForFinding();
- Int_t pflag=0;
- AliITSclusterV2* cl = layer2.GetCluster(ncl2);
- if(cl->IsUsed()==1) continue;
- if(cl->TestBit(kSAflag)==kTRUE) continue;
- fPhic = fTable->GetPhiCluster(1,ncl2);
- fLambdac = fTable->GetLambdaCluster(1,ncl2);
- fPhiEstimate = fPhic;
- AliITStrackSA* trs = new AliITStrackSA();
- fPoint1[0]=primaryVertex[0];
- fPoint1[1]=primaryVertex[1];
- fPoint2[0]=fTable->GetXCluster(1,ncl2);
- fPoint2[1]=fTable->GetYCluster(1,ncl2);
+ //if 5/6 points are required, second loop starting
+ //from second layer, to find tracks with point of
+ //layer 1 missing
- for(Int_t kk=0;kk<fGeom->GetNlayers()-1;kk++)nn[kk] = 0;
- for(Int_t kk=0;kk<fGeom->GetNlayers()-1;kk++){
- nn[kk] = SearchClusters(kk+1,fPhiWin[nloop],fLambdaWin[nloop],
- trs,primaryVertex[2],pflag,fTable);
- if(nn[kk]==0)break;
- if(kk>0){
- UpdatePoints();
- pflag = 1;
- }
- }
- Int_t fl=0;
- for(Int_t nnp=0;nnp<fGeom->GetNlayers()-1;nnp++){
- if(nn[nnp]!=0) fl+=1;
- }
- if(fl>=5){ // 5/6
- AliITStrackV2* tr2 = FitTrack(trs,primaryVertex,errorsprimvert);
- if(tr2==0){
- Int_t nct = trs->GetNumberOfClustersSA();
- while(nct--){
- Int_t index = trs->GetClusterIndexSA(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag);
-
- }
-
- continue;
- }
-
- AliESDtrack outtrack;
- outtrack.UpdateTrackParams(tr2,AliESDtrack::kITSin);
- event->AddTrack(&outtrack);
- ntrack++;
- Int_t nct = tr2->GetNumberOfClusters();
- while(nct--){
- Int_t index = tr2->GetClusterIndex(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl==0) continue;
- kl->SetBit(kSAflag);
- }
- }
- else{
- Int_t nct = trs->GetNumberOfClustersSA();
- while(nct--){
- Int_t index = trs->GetClusterIndexSA(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl==0) continue;
- if(kl->TestBit(kSAflag)==kTRUE) kl->ResetBit(kSAflag);
-
- }
- }
+ if(!fSixPoints){
+ // counter for clusters on each layer
+ Int_t * nn = new Int_t[fGeom->GetNlayers()-1];
+ for(Int_t nloop=0;nloop<fNloop;nloop++){
+ Int_t ncl2=fCluLayer[1]->GetEntries();
+ while(ncl2--){ //loop starting from layer 2
+ ResetForFinding();
+ Int_t pflag=0;
+ AliITSRecPoint* cl = (AliITSRecPoint*)fCluLayer[1]->At(ncl2);
+
+ if(!cl) continue;
+ AliITSclusterTable* arr = (AliITSclusterTable*)GetClusterCoord(1,ncl2);
+ fPhic = arr->GetPhi();
+ fLambdac = arr->GetLambda();
+ fPhiEstimate = fPhic;
+
+ AliITStrackSA* trs = new AliITStrackSA();
+ fPoint1[0]=primaryVertex[0];
+ fPoint1[1]=primaryVertex[1];
+
+ fPoint2[0]=arr->GetX();
+ fPoint2[1]=arr->GetY();
+ for(Int_t kk=0;kk<fGeom->GetNlayers()-1;kk++)nn[kk] = 0;
+ nn[0] = SearchClusters(1,fPhiWin[nloop],fLambdaWin[nloop],
+ trs,primaryVertex[2],pflag);
+ nn[1] = SearchClusters(2,fPhiWin[nloop],fLambdaWin[nloop],
+ trs,primaryVertex[2],pflag);
+ if(nn[1]!=0){
+ pflag=1;
+ fPoint3[0]=fPointc[0];
+ fPoint3[1]=fPointc[1];
+ }
+ nn[2]= SearchClusters(3,fPhiWin[nloop],fLambdaWin[nloop],
+ trs,primaryVertex[2],pflag);
+ if(nn[2]!=0){
+ pflag=1;
+ UpdatePoints();
+ }
+ nn[3]= SearchClusters(4,fPhiWin[nloop],fLambdaWin[nloop],
+ trs,primaryVertex[2],pflag);
+ if(nn[3]!=0){
+ pflag=1;
+ UpdatePoints();
+ }
+ nn[4]=SearchClusters(5,fPhiWin[nloop],fLambdaWin[nloop],
+ trs,primaryVertex[2],pflag);
+
+ Int_t fl=0;
+ for(Int_t nnp=0;nnp<fGeom->GetNlayers()-1;nnp++){
+ if(nn[nnp]!=0) fl+=1;
+ }
+ if(fl>=5){ // 5/6
+ AliITStrackV2* tr2 = FitTrack(trs,primaryVertex);
+ if(tr2==0){
+ continue;
+ }
+
+ AliESDtrack outtrack;
+ outtrack.UpdateTrackParams(tr2,AliESDtrack::kITSin);
+ event->AddTrack(&outtrack);
+ ntrack++;
+
+ }
+
+
delete trs;
}//end loop on clusters of layer2
- }
+ }
+
delete [] nn;
} //end opt="5/6"
-
+
delete [] firstmod;
- delete fTable;fTable=0;
Info("FindTracks","Number of found tracks: %d",event->GetNumberOfTracks());
return 0;
}
+
+
+
//________________________________________________________________________
-AliITStrackV2* AliITStrackerSA::FitTrack(AliITStrackSA* tr,Double_t *primaryVertex,Double_t *errorsprimvert){
+AliITStrackV2* AliITStrackerSA::FitTrack(AliITStrackSA* tr,Double_t *primaryVertex){
//fit of the found track
for(Int_t i=0;i<fGeom->GetNlayers();i++){
firstmod[i]=fGeom->GetModuleIndex(i+1,1,1);
}
- AliITStrackV2* otrack2;
+
Int_t nclusters = tr->GetNumberOfClustersSA();
TObjArray** listlayer = new TObjArray*[fGeom->GetNlayers()];
for(Int_t i=0;i<fGeom->GetNlayers();i++){
TArrayI clind4(20);
TArrayI clind5(20);
+ TArrayI mark0(20);
+ TArrayI mark1(20);
+ TArrayI mark2(20);
+ TArrayI mark3(20);
+ TArrayI mark4(20);
+ TArrayI mark5(20);
+
+
Int_t * nnn = new Int_t[fGeom->GetNlayers()];
- for(Int_t i=0;i<fGeom->GetNlayers();i++)nnn[i]=0;
+ Int_t * kkk = new Int_t[fGeom->GetNlayers()];
+ for(Int_t i=0;i<fGeom->GetNlayers();i++) {nnn[i]=0;kkk[i]=0;}
for(Int_t ncl=0;ncl<nclusters;ncl++){
- Int_t index = tr->GetClusterIndexSA(ncl);
- AliITSclusterV2* cl = (AliITSclusterV2*)GetCluster(index);
-
+ Int_t index = tr->GetClusterIndexSA(ncl);
+ AliITSRecPoint* cl = (AliITSRecPoint*)GetCluster(index);
if(cl->TestBit(kSAflag)==kTRUE) cl->ResetBit(kSAflag);
Int_t lay = (index & 0xf0000000) >> 28;
if(lay==0) { listlayer[0]->AddLast(cl); clind0[nnn[0]]=index;nnn[0]++;}
}
delete [] nnn;
+ for(Int_t nlay=0;nlay<fGeom->GetNlayers();nlay++){
+ for(Int_t ncl=0;ncl<tr->GetNumberOfMarked(nlay);ncl++){
+ Int_t mark = tr->GetClusterMark(nlay,ncl);
+ if(nlay==0) { mark0[kkk[0]]=mark;kkk[0]++;}
+ if(nlay==1) { mark1[kkk[1]]=mark;kkk[1]++;}
+ if(nlay==2) { mark2[kkk[2]]=mark;kkk[2]++;}
+ if(nlay==3) { mark3[kkk[3]]=mark;kkk[3]++;}
+ if(nlay==4) { mark4[kkk[4]]=mark;kkk[4]++;}
+ if(nlay==5) { mark5[kkk[5]]=mark;kkk[5]++;}
+
+ }
+ }
+
+ delete [] kkk;
+
Int_t * end = new Int_t[fGeom->GetNlayers()];
for(Int_t i=0;i<fGeom->GetNlayers();i++){
else end[i]=listlayer[i]->GetEntries();
}
+ TClonesArray* listSA = new TClonesArray("AliITStrackSA");
+ TClonesArray &tri = *listSA;
+ Int_t nlist=0;
+
+ if(end[0]==0) end[0]=1; //for tracks with cluster on layer 0 missing
for(Int_t l1=0;l1<end[0];l1++){//loop on layer 1
- AliITSclusterV2* cl0 = (AliITSclusterV2*)listlayer[0]->At(l1);
- TVector3** recp = new TVector3*[3];
- TVector3** errs = new TVector3*[3];
- recp[0] = new TVector3(primaryVertex[0],primaryVertex[1],primaryVertex[2]);
- errs[0] = new TVector3(errorsprimvert[0],errorsprimvert[1],errorsprimvert[2]);
+ AliITSRecPoint* cl0 = (AliITSRecPoint*)listlayer[0]->At(l1);
Double_t x1,y1,z1,sx1,sy1,sz1;
Double_t x2,y2,z2,sx2,sy2,sz2;
- AliITSclusterV2* p1=0;
- AliITSclusterV2* p2=0;
+ AliITSRecPoint* p1=0;
+ AliITSRecPoint* p2=0;
Int_t index1=clind0[l1];
Int_t index2=0;
+ Int_t mrk1 = mark0[l1];
+ Int_t mrk2 = 0;
+ Int_t lay1=0;
+ Int_t lay2=1;
+ Int_t module1=-1;
for(Int_t l2=0;l2<end[1];l2++){//loop on layer 2
- AliITSclusterV2* cl1 = (AliITSclusterV2*)listlayer[1]->At(l2);
+ AliITSRecPoint* cl1 = (AliITSRecPoint*)listlayer[1]->At(l2);
index2=clind1[l2];
+ mrk2 = mark1[l2];
for(Int_t l3=0;l3<end[2];l3++){ //loop on layer 3
- AliITSclusterV2* cl2 = (AliITSclusterV2*)listlayer[2]->At(l3);
+ AliITSRecPoint* cl2 = (AliITSRecPoint*)listlayer[2]->At(l3);
if(cl0==0 && cl1!=0) {
- p2 = cl2;index1=clind2[l3];
+ p2 = cl2;index1=clind2[l3];mrk1=mark2[l3];lay1=2;
p1=cl1;
-
+ module1 = p1->GetDetectorIndex()+firstmod[1];
}
if(cl0!=0 && cl1==0){
p1=cl0;
- p2=cl2;index2=clind2[l3];
+ p2=cl2;index2=clind2[l3];mrk2=mark2[l3];lay2=2;
+ module1 = p1->GetDetectorIndex()+firstmod[0];
}
if(cl0!=0 && cl1!=0){
p1=cl0;
p2=cl1;
+ module1 = p1->GetDetectorIndex()+firstmod[0];
}
- Int_t lay1=(index1 & 0xf0000000) >> 28;
- Int_t cln1=(index1 & 0x0fffffff) >> 00;
- Int_t lay2=(index2 & 0xf0000000) >> 28;
- Int_t cln2=(index2 & 0x0fffffff) >> 00;
- x1 = fTable->GetXCluster(lay1,cln1);
- x2 = fTable->GetXCluster(lay2,cln2);
- y1 = fTable->GetYCluster(lay1,cln1);
- y2 = fTable->GetYCluster(lay2,cln2);
- z1 = fTable->GetZCluster(lay1,cln1);
- z2 = fTable->GetZCluster(lay2,cln2);
- sx1 = fTable->GetXClusterError(lay1,cln1);
- sx2 = fTable->GetXClusterError(lay2,cln2);
- sy1 = fTable->GetYClusterError(lay1,cln1);
- sy2 = fTable->GetYClusterError(lay2,cln2);
- sz1 = fTable->GetZClusterError(lay1,cln1);
- sz2 = fTable->GetZClusterError(lay2,cln2);
- Double_t phi1 = fTable->GetPhiCluster(lay1,cln1);
- Int_t module1 = p1->GetDetectorIndex()+firstmod[0];
- recp[1] = new TVector3(x1,y1,z1);
- errs[1] = new TVector3(sx1,sy1,sz1);
- recp[2] = new TVector3(x2,y2,z2);
- errs[2] = new TVector3(sx2,sy2,sz2);
-
- //fit on the Riemann sphere
- Float_t seed1,seed2,seed3;
- AliITSRiemannFit fit;
- Int_t rf = fit.FitHelix(3,recp,errs,seed1,seed2,seed3); //this gives phi,tgl,curvature to start Kalman Filter
- if(rf==0) continue;
- Double_t phi=seed1;
- Double_t tgl=seed2;
-
- if(phi1>0){
- if(seed1>-TMath::Pi() && seed1<-0.5*TMath::Pi()){
- phi=seed1+1.5*TMath::Pi();
- tgl=seed2;
- }
- if(seed1>-0.5*TMath::Pi() && seed1<0.5*TMath::Pi()){
- phi=seed1+0.5*TMath::Pi();
- tgl=(-1)*seed2;
- }
- if(seed1>0.5*TMath::Pi() && seed1<TMath::Pi()){
- phi=seed1-0.5*TMath::Pi();
- tgl=seed2;
- }
- }
- if(phi1<0){
- if(seed1>-TMath::Pi() && seed1<-0.5*TMath::Pi()){
- phi=seed1+0.5*TMath::Pi();
- tgl=(-1)*seed2;
- }
- if(seed1>-0.5*TMath::Pi() && seed1<0.5*TMath::Pi()){
- phi=seed1-0.5*TMath::Pi();
- tgl=seed2;
- }
- if(seed1>0.5*TMath::Pi() && seed1<TMath::Pi()){
- phi=seed1-1.5*TMath::Pi();
- tgl=(-1)*seed2;
- }
- }
-
+
+ Int_t cln1=mrk1;
+ Int_t cln2=mrk2;
+ AliITSclusterTable* arr = (AliITSclusterTable*)GetClusterCoord(lay1,cln1);
+ AliITSclusterTable* arr1= (AliITSclusterTable*)GetClusterCoord(lay2,cln2);
+ x1 = arr->GetX();
+ x2 = arr1->GetX();
+ y1 = arr->GetY();
+ y2 = arr1->GetY();
+ z1 = arr->GetZ();
+ z2 = arr1->GetZ();
+ sx1 = arr->GetSx();
+ sx2 = arr1->GetSx();
+ sy1 = arr->GetSy();
+ sy2 = arr1->GetSy();
+ sz1 = arr->GetSz();
+ sz2 = arr1->GetSz();
+
Int_t layer,ladder,detector;
fGeom->GetModuleId(module1,layer,ladder,detector);
Float_t yclu1 = p1->GetY();
Float_t zclu1 = p1->GetZ();
Double_t cv=Curvature(primaryVertex[0],primaryVertex[1],x1,y1,x2,y2);
-
+
+ Double_t tgl2 = (z2-z1)/TMath::Sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
+ Double_t phi2 = TMath::ATan2((y2-y1),(x2-x1));
+
for(Int_t l4=0;l4<end[3];l4++){ //loop on layer 4
- AliITSclusterV2* cl3 = (AliITSclusterV2*)listlayer[3]->At(l4);
+ AliITSRecPoint* cl3 = (AliITSRecPoint*)listlayer[3]->At(l4);
for(Int_t l5=0;l5<end[4];l5++){ //loop on layer 5
- AliITSclusterV2* cl4 = (AliITSclusterV2*)listlayer[4]->At(l5);
+ AliITSRecPoint* cl4 = (AliITSRecPoint*)listlayer[4]->At(l5);
for(Int_t l6=0;l6<end[5];l6++){ //loop on layer 6
- AliITSclusterV2* cl5 = (AliITSclusterV2*)listlayer[5]->At(l6);
- AliITStrackSA* trac = new AliITStrackSA(layer,ladder,detector,yclu1,zclu1,phi,tgl,cv,1);
+ AliITSRecPoint* cl5 = (AliITSRecPoint*)listlayer[5]->At(l6);
+ AliITStrackSA* trac = new AliITStrackSA(fGeom,layer,ladder,detector,yclu1,zclu1,phi2,tgl2,cv,1);
- if(cl5!=0) trac->AddClusterV2(5,(clind5[l6] & 0x0fffffff)>>0);
- if(cl4!=0) trac->AddClusterV2(4,(clind4[l5] & 0x0fffffff)>>0);
- if(cl3!=0) trac->AddClusterV2(3,(clind3[l4] & 0x0fffffff)>>0);
- if(cl2!=0) trac->AddClusterV2(2,(clind2[l3] & 0x0fffffff)>>0);
- if(cl1!=0) trac->AddClusterV2(1,(clind1[l2] & 0x0fffffff)>>0);
- if(cl0!=0) trac->AddClusterV2(0,(clind0[l1] & 0x0fffffff)>>0);
-
- //fit with Kalman filter using AliITStrackerV2::RefitAt()
+ if(cl5!=0) {
+ trac->AddClusterV2(5,(clind5[l6] & 0x0fffffff)>>0);
+ trac->AddClusterMark(5,mark5[l6]);
+ }
+ if(cl4!=0){
+ trac->AddClusterV2(4,(clind4[l5] & 0x0fffffff)>>0);
+ trac->AddClusterMark(4,mark4[l5]);
+ }
+ if(cl3!=0){
+ trac->AddClusterV2(3,(clind3[l4] & 0x0fffffff)>>0);
+ trac->AddClusterMark(3,mark3[l4]);
+ }
+ if(cl2!=0){
+ trac->AddClusterV2(2,(clind2[l3] & 0x0fffffff)>>0);
+ trac->AddClusterMark(2,mark2[l3]);
+ }
+ if(cl1!=0){
+ trac->AddClusterV2(1,(clind1[l2] & 0x0fffffff)>>0);
+ trac->AddClusterMark(1,mark1[l2]);
+ }
+ if(cl0!=0){
+ trac->AddClusterV2(0,(clind0[l1] & 0x0fffffff)>>0);
+ trac->AddClusterMark(0,mark0[l1]);
+ }
+ //fit with Kalman filter using AliITStrackerMI::RefitAt()
- AliITStrackV2* ot = new AliITStrackV2(*trac);
+
+ AliITStrackMI* ot = new AliITStrackSA(*trac);
ot->ResetCovariance();
ot->ResetClusters();
if(RefitAt(49.,ot,trac)){ //fit from layer 1 to layer 6
-
- otrack2 = new AliITStrackV2(*ot);
+ AliITStrackMI *otrack2 = new AliITStrackMI(*ot);
otrack2->ResetCovariance();
otrack2->ResetClusters();
//fit from layer 6 to layer 1
- if(RefitAt(3.7,otrack2,ot)) fListOfTracks->AddLast(otrack2);
+ if(RefitAt(3.7,otrack2,ot)) {
+ fListOfTracks->AddLast(otrack2);
+ new (tri[nlist]) AliITStrackSA(*trac);
+ nlist++;
+ } else {
+ delete otrack2;
+ }
}
}//end loop layer 5
}//end loop layer 4
- for(Int_t i=1;i<3;i++){
- delete recp[i];
- delete errs[i];
- }
}//end loop layer 3
}//end loop layer 2
- delete recp[0];
- delete errs[0];
- delete[] recp;
- delete[] errs;
}//end loop layer 1
delete [] end;
+
+
Int_t dim=fListOfTracks->GetEntries();
if(dim==0){
for(Int_t i=0;i<fGeom->GetNlayers();i++){
delete listlayer[i];
}
- delete listlayer;
+ delete [] listlayer;
+ listSA->Delete();
+ delete listSA;
+ delete [] firstmod;
return 0;
}
- AliITStrackV2* otrack =(AliITStrackV2*)FindTrackLowChiSquare(fListOfTracks,dim);
-
- if(otrack==0) return 0;
+ Int_t lowchi2 = FindTrackLowChiSquare(fListOfTracks,dim);
+ AliITStrackV2* otrack =(AliITStrackV2*)fListOfTracks->At(lowchi2);
+ AliITStrackSA* trsa = (AliITStrackSA*)listSA->At(lowchi2);
+
+ if(otrack==0) {
+ for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ delete listlayer[i];
+ }
+ delete [] listlayer;
+ listSA->Delete();
+ delete listSA;
+ delete [] firstmod;
+ return 0;
+ }
Int_t * indexc = new Int_t[fGeom->GetNlayers()];
for(Int_t i=0;i<fGeom->GetNlayers();i++) indexc[i]=0;
for(Int_t nind=0;nind<otrack->GetNumberOfClusters();nind++){
indexc[nind] = otrack->GetClusterIndex(nind);
}
- AliITSclusterV2* cl0 = (AliITSclusterV2*)GetCluster(indexc[0]);
- AliITSclusterV2* cl1 = (AliITSclusterV2*)GetCluster(indexc[1]);
- AliITSclusterV2* cl2 = (AliITSclusterV2*)GetCluster(indexc[2]);
- AliITSclusterV2* cl3 = (AliITSclusterV2*)GetCluster(indexc[3]);
- AliITSclusterV2* cl4 = (AliITSclusterV2*)GetCluster(indexc[4]);
+ AliITSRecPoint* cl0 = (AliITSRecPoint*)GetCluster(indexc[0]);
+ AliITSRecPoint* cl1 = (AliITSRecPoint*)GetCluster(indexc[1]);
+ AliITSRecPoint* cl2 = (AliITSRecPoint*)GetCluster(indexc[2]);
+ AliITSRecPoint* cl3 = (AliITSRecPoint*)GetCluster(indexc[3]);
+ AliITSRecPoint* cl4 = (AliITSRecPoint*)GetCluster(indexc[4]);
Int_t labl[3]={-1,-1,-1};
if(otrack->GetNumberOfClusters()==fGeom->GetNlayers()){
- AliITSclusterV2* cl5 = (AliITSclusterV2*)GetCluster(indexc[5]);
+ AliITSRecPoint* cl5 = (AliITSRecPoint*)GetCluster(indexc[5]);
labl[0]=cl5->GetLabel(0);
labl[1]=cl5->GetLabel(1);
labl[2]=cl5->GetLabel(2);
Int_t numberofpoints;
if(fSixPoints) numberofpoints=6;
else numberofpoints=5;
+ CookLabel(otrack,0.); //MI change - to see fake ratio
Int_t label = Label(cl0->GetLabel(0),cl1->GetLabel(0),
cl2->GetLabel(0),cl3->GetLabel(0),
cl4->GetLabel(0),labl[0],
cl4->GetLabel(2),labl[2],numberofpoints);
otrack->SetLabel(label);
+ //remove clusters of found track
+
+ for(Int_t nlay=0;nlay<fGeom->GetNlayers();nlay++){
+ for(Int_t cln=0;cln<trsa->GetNumberOfMarked(nlay);cln++){
+ Int_t index = trsa->GetClusterMark(nlay,cln);
+ fCluLayer[nlay]->RemoveAt(index);
+ RemoveClusterCoord(nlay,index);
+ fCluLayer[nlay]->Compress();
+ }
+ }
+ listSA->Delete();
+ delete listSA;
+
for(Int_t i=0;i<fGeom->GetNlayers();i++){
delete listlayer[i];
}
- delete listlayer;
+ delete [] listlayer;
delete [] firstmod;
return otrack;
}
-//_______________________________________________________________________
-void AliITStrackerSA::UseFoundTracksV2(Int_t evnum,TTree* treev2){
- // Marks as used clusters belonging to tracks found with V2 TPC+ITS tracking
- //(or AliITStrackV2 tracks found with function FindTracks of this class)
-
-
- //Get primary vertex
- if(fVertexer){
- if(fVert)delete fVert;
- fVert = fVertexer->FindVertexForCurrentEvent(evnum);
- }
- else {
- gAlice->GetEvent(evnum);
- if(!fVert){
- Fatal("FindTracks","Vertex is missing\n");
- return;
- }
- }
- Double_t primaryVertex[3];
- fVert->GetXYZ(primaryVertex);
-
- if(!fTable){
- fTable = new AliITSclusterTable(fGeom,this,primaryVertex);
- fTable->FillArray(fITSclusters);
- fTable->FillArrayCoorAngles();
- }
-
- TBranch* bra = (TBranch*)treev2->GetBranch("tracks");
- if(!bra) Warning("UseFoundTracksV2","No branch for track tree");
- AliITStrackV2* ttrrt = new AliITStrackV2;
- bra->SetAddress(&ttrrt);
-
- for(Int_t nj=0;nj<treev2->GetEntries();nj++){
- treev2->GetEvent(nj);
- Int_t ncl = ttrrt->GetNumberOfClusters();
- for(Int_t k=0;k<ncl;k++){
- Int_t index = ttrrt->GetClusterIndex(k);
- AliITSclusterV2* clui = (AliITSclusterV2*)GetCluster(index);
- if(clui->IsUsed()==0) clui->Use();
-
- }
- }
- delete ttrrt;
-
-}
-
-//_______________________________________________________________________
-void AliITStrackerSA::UseFoundTracksV2(AliESD *event){
- // Marks as used clusters belonging to tracks found with V2 TPC+ITS tracking
- //Get primary vertex
-
- Double_t primaryVertex[3];
- event->GetVertex()->GetXYZ(primaryVertex);
-
- if(!fTable){
- fTable = new AliITSclusterTable(fGeom,this,primaryVertex);
- fTable->FillArray(fITSclusters);
- fTable->FillArrayCoorAngles();
- }
-
- Int_t ntracks = event->GetNumberOfTracks();
- while (ntracks--) {
- AliESDtrack *esd=event->GetTrack(ntracks);
- if ((esd->GetStatus()&
- AliESDtrack::kITSin|AliESDtrack::kTPCin)==0) continue;
- UInt_t idx[6];
- Int_t ncl = esd->GetITSclusters(idx);
- for(Int_t clu=0; clu<ncl; clu++){
- AliITSclusterV2* cl = (AliITSclusterV2*)GetCluster(idx[clu]);
- if(cl->IsUsed()==0) cl->Use();
- }
- }
-
- Info("UseFoundTracksV2","Clusters of tracks prolonged from TPC deleted");
-
-
-}
//_______________________________________________________
-Int_t AliITStrackerSA::SearchClusters(Int_t layer,Double_t phiwindow,Double_t lambdawindow, AliITStrackSA* trs,Double_t zvertex,Int_t pflag,AliITSclusterTable* table){
+Int_t AliITStrackerSA::SearchClusters(Int_t layer,Double_t phiwindow,Double_t lambdawindow, AliITStrackSA* trs,Double_t /*zvertex*/,Int_t pflag){
//function used to to find the clusters associated to the track
Int_t nc=0;
AliITSlayer &lay = fgLayers[layer];
- Int_t * firstmod = new Int_t[fGeom->GetNlayers()];
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
- firstmod[i]=fGeom->GetModuleIndex(i+1,1,1);
- }
- if(pflag==1){
-
+ Double_t r=lay.GetR();
+ if(pflag==1){
Float_t cx1,cx2,cy1,cy2;
FindEquation(fPoint1[0],fPoint1[1],fPoint2[0],fPoint2[1],fPoint3[0],fPoint3[1],fCoef1,fCoef2,fCoef3);
- Int_t fun = FindIntersection(fCoef1,fCoef2,fCoef3,-(lay.GetR()*lay.GetR()),cx1,cy1,cx2,cy2);
- if(fun==0) {
- delete[] firstmod;
- return 0;
- }
-
- Double_t fi1 =TMath::ATan2(cy1,cx1);
- Double_t fi2 =TMath::ATan2(cy2,cx2);
- fPhiEstimate = ChoosePoint(fi1,fi2,fPhic);
+ if (FindIntersection(fCoef1,fCoef2,fCoef3,-r*r,cx1,cy1,cx2,cy2)==0)
+ return 0;
+ Double_t fi1=TMath::ATan2(cy1,cx1);
+ Double_t fi2=TMath::ATan2(cy2,cx2);
+ fPhiEstimate=ChoosePoint(fi1,fi2,fPhic);
}
- Double_t zed = TMath::Tan(fLambdac)*lay.GetR()+zvertex;
- Double_t zed1 = TMath::Tan(fLambdac+lambdawindow)*lay.GetR()+zvertex;
- Double_t zed2 = TMath::Tan(fLambdac-lambdawindow)*lay.GetR()+zvertex;
-
- Double_t fi = fPhiEstimate;
- Int_t nmod = lay.FindDetectorIndex(fi,zed);
- if (nmod < 0) {
- delete[] firstmod;
- return 0;
- }
- nmod += firstmod[layer];
- Int_t nm[8]={0,0,0,0,0,0,0,0};
- nm[0] = lay.FindDetectorIndex(fi+phiwindow,zed);
- nm[1] = lay.FindDetectorIndex(fi-phiwindow,zed);
- nm[2] = lay.FindDetectorIndex(fi,zed1);
- nm[3] = lay.FindDetectorIndex(fi,zed2);
- nm[4] = lay.FindDetectorIndex(fi+phiwindow,zed1);
- nm[5] = lay.FindDetectorIndex(fi-phiwindow,zed1);
- nm[6] = lay.FindDetectorIndex(fi+phiwindow,zed2);
- nm[7] = lay.FindDetectorIndex(fi-phiwindow,zed2);
-
-
- Int_t nn=0;
- TArrayI* array =(TArrayI*)table->GetListOfClusters(nmod);
- TArrayI* listc = new TArrayI(array->GetSize());
- for(Int_t i=0;i<array->GetSize();i++){
- Int_t in=(Int_t)array->At(i);
- listc->AddAt(in,nn);
- nn++;
- }
+ Int_t ncl = fCluLayer[layer]->GetEntries();
+ for (Int_t index=0; index<ncl; index++) {
+ AliITSRecPoint *c = (AliITSRecPoint*)fCluLayer[layer]->At(index);
+ if (!c) continue;
+ if (c->GetQ()<=0) continue;
- Int_t k=0;
- Int_t val;
- while(k<8){
- for(Int_t h=k+1;h<8;h++){
- if(nm[k]>nm[h]){
- val=nm[k];
- nm[k]=nm[h];
- nm[h]=val;
- }
-
- }
- k++;
- }
-
- Int_t value=-5;
-
- for(Int_t ii=0;ii<8;ii++){
- if(nm[ii]!=value && nm[ii]!=nmod && nm[ii]>=0){
- TArrayI* ar =(TArrayI*)table->GetListOfClusters(nm[ii]+firstmod[layer]);
- listc->Set(listc->GetSize()+ar->GetSize());
- for(Int_t j=0;j<ar->GetSize();j++){
- Int_t in=(Int_t)ar->At(j);
- listc->AddAt(in,nn);
- nn++;
- value=nm[ii];
- }
- }
- }
-
-
- for(Int_t i=0;i<listc->GetSize();i++){
- Int_t index = (Int_t)listc->At(i);
- AliITSclusterV2* cllay = lay.GetCluster(index);
- if(cllay==0) continue;
- if(cllay->IsUsed()==1) continue;
- if(cllay->TestBit(kSAflag)==kTRUE) continue;
- Double_t phi = fTable->GetPhiCluster(layer,index);
- Double_t lambda= fTable->GetLambdaCluster(layer,index);
-
- if(TMath::Abs(fLambdac-lambda)<lambdawindow &&
- TMath::Abs(fPhiEstimate-phi)<phiwindow){
- nc+=1;
- fLambdac = lambda;
- if(trs->GetNumberOfClustersSA()==15){
- delete[] firstmod;
- delete listc;
- return 0;
- }
- trs->AddClusterSA(layer,index);
- cllay->SetBit(kSAflag);
- fPhiEstimate=phi;
- fPointc[0]=fTable->GetXCluster(layer,index);
- fPointc[1]=fTable->GetYCluster(layer,index);
- }
+ AliITSclusterTable* arr = (AliITSclusterTable*)GetClusterCoord(layer,index);
+ Double_t phi = arr->GetPhi();
+ if (TMath::Abs(phi-fPhiEstimate)>phiwindow) continue;
+
+ Double_t lambda = arr->GetLambda();
+ if (TMath::Abs(lambda-fLambdac)>lambdawindow) continue;
+
+ if(trs->GetNumberOfClustersSA()==trs->GetMaxNumberOfClusters()) return 0;
+ if(trs->GetNumberOfMarked(layer)==trs->GetMaxNMarkedPerLayer()) return 0;
+ Int_t orind = arr->GetOrInd();
+ trs->AddClusterSA(layer,orind);
+ trs->AddClusterMark(layer,index);
+
+ nc++;
+ fLambdac=lambda;
+ fPhiEstimate=phi;
+
+ fPointc[0]=arr->GetX();
+ fPointc[1]=arr->GetY();
}
- delete listc;
- delete [] firstmod;
return nc;
-
}
-
-
//________________________________________________________________
void AliITStrackerSA::UpdatePoints(){
//update of points for the estimation of the curvature
- //fPoint1[0]=fPoint2[0];
- //fPoint1[1]=fPoint2[1];
fPoint2[0]=fPoint3[0];
fPoint2[1]=fPoint3[1];
fPoint3[0]=fPointc[0];
//c2 is -rlayer*rlayer
if(a1==0) return 0;
- Float_t m = c2-c1;
- Float_t aA = (b1*b1)/(a1*a1)+1;
- Float_t bB = (-2*m*b1/(a1*a1));
- Float_t cC = c2+(m*m)/(a1*a1);
- if((bB*bB-4*aA*cC)<0) return 0;
+ Double_t m = c2-c1;
+ Double_t aA = (b1*b1)/(a1*a1)+1;
+ Double_t bB = (-2*m*b1/(a1*a1));
+ Double_t cC = c2+(m*m)/(a1*a1);
+ Double_t dD = bB*bB-4*aA*cC;
+ if(dD<0) return 0;
- y1 = (-bB+TMath::Sqrt(bB*bB-4*aA*cC))/(2*aA);
- y2 = (-bB-TMath::Sqrt(bB*bB-4*aA*cC))/(2*aA);
+ y1 = (-bB+TMath::Sqrt(dD))/(2*aA);
+ y2 = (-bB-TMath::Sqrt(dD))/(2*aA);
x1 = (c2-c1-b1*y1)/a1;
x2 = (c2-c1-b1*y2)/a1;
return 1/rad;
}
+
+
//____________________________________________________________________
Double_t AliITStrackerSA::ChoosePoint(Double_t p1, Double_t p2, Double_t pp){
//_________________________________________________________________
-AliITStrackV2* AliITStrackerSA::FindTrackLowChiSquare(TObjArray* tracklist, Int_t dim) const {
+Int_t AliITStrackerSA::FindTrackLowChiSquare(TObjArray* tracklist, Int_t dim) const {
// returns track with lowes chi square
if(dim==1){
- AliITStrackV2* trk = (AliITStrackV2*)tracklist->At(0);
- return trk;
+ //AliITStrackV2* trk = (AliITStrackV2*)tracklist->At(0);
+ //return trk;
+ return 0;
}
- if(dim==0) return 0;
+ //if(dim==0) return 0;
Double_t * chi2 = new Double_t[dim];
Int_t * index = new Int_t[dim];
for(Int_t i=0;i<dim;i++){
w++;
}
- AliITStrackV2* trk = (AliITStrackV2*)tracklist->At(index[dim-1]);
delete [] chi2;
delete [] index;
- return trk;
-
+ return index[dim-1];
}
//__________________________________________________________
}
}
+//_______________________________________________________________________
+void AliITStrackerSA::GetCoorAngles(AliITSRecPoint* cl,Int_t module,Double_t &phi,Double_t &lambda, Float_t &x, Float_t &y,Float_t &z,Double_t* vertex){
+ //Returns values of phi (azimuthal) and lambda angles for a given cluster
+
+ Double_t rot[9]; fGeom->GetRotMatrix(module,rot);
+ Int_t lay,lad,det; fGeom->GetModuleId(module,lay,lad,det);
+ Float_t tx,ty,tz; fGeom->GetTrans(lay,lad,det,tx,ty,tz);
+
+ Double_t alpha=TMath::ATan2(rot[1],rot[0])+TMath::Pi();
+ Double_t phi1=TMath::Pi()/2+alpha;
+ if (lay==1) phi1+=TMath::Pi();
+
+ Float_t cp=TMath::Cos(phi1), sp=TMath::Sin(phi1);
+ Float_t r=tx*cp+ty*sp;
+
+ x= r*cp - cl->GetY()*sp;
+ y= r*sp + cl->GetY()*cp;
+ z=cl->GetZ();
+
+ phi=TMath::ATan2(y,x);
+ lambda=TMath::ATan2(z-vertex[2],TMath::Sqrt((x-vertex[0])*(x-vertex[0])+(y-vertex[1])*(y-vertex[1])));
+}
+//________________________________________________________________________
+void AliITStrackerSA::GetCoorErrors(AliITSRecPoint* cl, Int_t module,Float_t &sx,Float_t &sy, Float_t &sz){
+
+ //returns x,y,z of cluster in global coordinates
+
+ Double_t rot[9]; fGeom->GetRotMatrix(module,rot);
+ Int_t lay,lad,det; fGeom->GetModuleId(module,lay,lad,det);
+
+ Double_t alpha=TMath::ATan2(rot[1],rot[0])+TMath::Pi();
+ Double_t phi=TMath::Pi()/2+alpha;
+ if (lay==1) phi+=TMath::Pi();
+
+ Float_t cp=TMath::Cos(phi), sp=TMath::Sin(phi);
+
+ sx = TMath::Sqrt(sp*sp*cl->GetSigmaY2());
+ sy = TMath::Sqrt(cp*cp*cl->GetSigmaY2());
+ sz = TMath::Sqrt(cl->GetSigmaZ2());
+
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff