#include <TObjArray.h>
#include <TTree.h>
-#include "AliESD.h"
+#include "AliESDEvent.h"
#include "AliESDVertex.h"
#include "AliESDtrack.h"
#include "AliITSVertexer.h"
#include "AliITSclusterTable.h"
#include "AliITSRecPoint.h"
-#include "AliITSgeom.h"
+#include "AliITSgeomTGeo.h"
#include "AliITStrackSA.h"
#include "AliITStrackerSA.h"
+#include "AliITSReconstructor.h"
+#include "AliLog.h"
#include "AliRun.h"
ClassImp(AliITStrackerSA)
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA():AliITStrackerMI(){
+AliITStrackerSA::AliITStrackerSA():AliITStrackerMI(),
+fPhiEstimate(0),
+fITSStandAlone(0),
+fLambdac(0),
+fPhic(0),
+fCoef1(0),
+fCoef2(0),
+fCoef3(0),
+fNloop(0),
+fPhiWin(0),
+fLambdaWin(0),
+fVert(0),
+fVertexer(0),
+fListOfTracks(0),
+fListOfSATracks(0),
+fITSclusters(0),
+fInwardFlag(0),
+fOuterStartLayer(0),
+fInnerStartLayer(5),
+fMinNPoints(0),
+fMinQ(0.),
+fCluLayer(0),
+fCluCoord(0){
// Default constructor
Init();
}
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom):AliITStrackerMI(geom)
+AliITStrackerSA::AliITStrackerSA(const Char_t *geom):AliITStrackerMI(0),
+fPhiEstimate(0),
+fITSStandAlone(0),
+fLambdac(0),
+fPhic(0),
+fCoef1(0),
+fCoef2(0),
+fCoef3(0),
+fNloop(0),
+fPhiWin(0),
+fLambdaWin(0),
+fVert(0),
+fVertexer(0),
+fListOfTracks(0),
+fListOfSATracks(0),
+fITSclusters(0),
+fInwardFlag(0),
+fOuterStartLayer(0),
+fInnerStartLayer(5),
+fMinNPoints(0),
+fMinQ(0.),
+fCluLayer(0),
+fCluCoord(0)
{
// Standard constructor (Vertex is known and passed to this obj.)
+ if (geom) {
+ AliWarning("\"geom\" is actually a dummy argument !");
+ }
+
Init();
fVert = 0;
- fGeom = geom;
}
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom, AliESDVertex *vert):AliITStrackerMI(geom)
+AliITStrackerSA::AliITStrackerSA(const Char_t *geom, AliESDVertex *vert):AliITStrackerMI(0),
+fPhiEstimate(0),
+fITSStandAlone(0),
+fLambdac(0),
+fPhic(0),
+fCoef1(0),
+fCoef2(0),
+fCoef3(0),
+fNloop(0),
+fPhiWin(0),
+fLambdaWin(0),
+fVert(vert),
+fVertexer(0),
+fListOfTracks(0),
+fListOfSATracks(0),
+fITSclusters(0),
+fInwardFlag(0),
+fOuterStartLayer(0),
+fInnerStartLayer(5),
+fMinNPoints(0),
+fMinQ(0.),
+fCluLayer(0),
+fCluCoord(0)
{
// Standard constructor (Vertex is known and passed to this obj.)
+ if (geom) {
+ AliWarning("\"geom\" is actually a dummy argument !");
+ }
Init();
- fVert = vert;
- fGeom = geom;
}
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom, AliITSVertexer *vertexer):AliITStrackerMI(geom)
+AliITStrackerSA::AliITStrackerSA(const Char_t *geom, AliITSVertexer *vertexer):AliITStrackerMI(0),
+fPhiEstimate(0),
+fITSStandAlone(0),
+fLambdac(0),
+fPhic(0),
+fCoef1(0),
+fCoef2(0),
+fCoef3(0),
+fNloop(0),
+fPhiWin(0),
+fLambdaWin(0),
+fVert(),
+fVertexer(vertexer),
+fListOfTracks(0),
+fListOfSATracks(0),
+fITSclusters(0),
+fInwardFlag(0),
+fOuterStartLayer(0),
+fInnerStartLayer(5),
+fMinNPoints(0),
+fMinQ(0.),
+fCluLayer(0),
+fCluCoord(0)
{
// Standard constructor (Vertex is unknown - vertexer is passed to this obj)
+ if (geom) {
+ AliWarning("\"geom\" is actually a dummy argument !");
+ }
Init();
fVertexer = vertexer;
- fGeom = geom;
}
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA(const AliITStrackerSA& tracker):AliITStrackerMI(){
+AliITStrackerSA::AliITStrackerSA(const AliITStrackerSA& tracker):AliITStrackerMI(),
+fPhiEstimate(tracker.fPhiEstimate),
+fITSStandAlone(tracker.fITSStandAlone),
+fLambdac(tracker.fLambdac),
+fPhic(tracker.fPhic),
+fCoef1(tracker.fCoef1),
+fCoef2(tracker.fCoef2),
+fCoef3(tracker.fCoef3),
+fNloop(tracker.fNloop),
+fPhiWin(tracker.fPhiWin),
+fLambdaWin(tracker.fLambdaWin),
+fVert(tracker.fVert),
+fVertexer(tracker.fVertexer),
+fListOfTracks(tracker.fListOfTracks),
+fListOfSATracks(tracker.fListOfSATracks),
+fITSclusters(tracker.fITSclusters),
+fInwardFlag(tracker.fInwardFlag),
+fOuterStartLayer(tracker.fOuterStartLayer),
+fInnerStartLayer(tracker.fInnerStartLayer),
+fMinNPoints(tracker.fMinNPoints),
+fMinQ(tracker.fMinQ),
+fCluLayer(tracker.fCluLayer),
+fCluCoord(tracker.fCluCoord) {
// Copy constructor
- fPhiEstimate = tracker.fPhiEstimate;
for(Int_t i=0;i<2;i++){
fPoint1[i]=tracker.fPoint1[i];
fPoint2[i]=tracker.fPoint2[i];
fPoint3[i]=tracker.fPoint3[i];
fPointc[i]=tracker.fPointc[i];
}
- fLambdac = tracker.fLambdac;
- fPhic = tracker.fPhic;
- fCoef1 = tracker.fCoef1;
- fCoef2 = tracker.fCoef2;
- fCoef3 = tracker.fCoef3;
- fNloop = tracker.fNloop;
- fPhiWin = tracker.fPhiWin;
- fLambdaWin = tracker.fLambdaWin;
if(tracker.fVertexer && tracker.fVert){
fVert = new AliESDVertex(*tracker.fVert);
}
else {
fVert = tracker.fVert;
}
- fVertexer = tracker.fVertexer;
- fGeom = tracker.fGeom;
- fListOfTracks = tracker.fListOfTracks;
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ for(Int_t i=0;i<AliITSgeomTGeo::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;
+AliITStrackerSA& AliITStrackerSA::operator=(const AliITStrackerSA& source){
+ // Assignment operator.
+ this->~AliITStrackerSA();
+ new(this) AliITStrackerSA(source);
+ return *this;
+
}
//____________________________________________________________________________
if(fPhiWin)delete []fPhiWin;
if(fLambdaWin)delete []fLambdaWin;
fListOfTracks->Delete();
+ delete fListOfTracks;
+ fListOfSATracks->Delete();
+ delete fListOfSATracks;
if(fCluLayer){
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
if(fCluLayer[i]){
fCluLayer[i]->Delete();
delete fCluLayer[i];
delete [] fCluLayer;
}
if(fCluCoord){
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
if(fCluCoord[i]){
fCluCoord[i]->Delete();
delete fCluCoord[i];
delete [] fCluCoord;
}
- fGeom = 0;
+}
+
+//____________________________________________________________________________
+Int_t AliITStrackerSA::Clusters2Tracks(AliESDEvent *event){
+// This method is used to find and fit the tracks. By default the corresponding
+// method in the parent class is invoked. In this way a combined tracking
+// TPC+ITS is performed. If the flag fITSStandAlone is true, the tracking
+// is done in the ITS only. In the standard reconstruction chain this option
+// can be set via AliReconstruction::SetOption("ITS","onlyITS")
+ Int_t rc=0;
+ if(!fITSStandAlone){
+ rc=AliITStrackerMI::Clusters2Tracks(event);
+ }
+ else {
+ AliDebug(1,"Stand Alone flag set: doing tracking in ITS alone\n");
+ }
+ if(!rc){
+ rc=FindTracks(event,kFALSE);
+ if(AliITSReconstructor::GetRecoParam()->GetSAUseAllClusters()==kTRUE) {
+ rc=FindTracks(event,kTRUE);
+ }
+ }
+
+ return rc;
}
//____________________________________________________________________________
fPointc[1]=0;
fVert = 0;
fVertexer = 0;
- fGeom = 0;
- SetWindowSizes();
+ Int_t nLoops=AliITSReconstructor::GetRecoParam()->GetNLoopsSA();
+ if(nLoops==33){
+ SetFixedWindowSizes();
+ }else{
+ Double_t phimin=AliITSReconstructor::GetRecoParam()->GetMinPhiSA();
+ Double_t phimax=AliITSReconstructor::GetRecoParam()->GetMaxPhiSA();
+ Double_t lambmin=AliITSReconstructor::GetRecoParam()->GetMinLambdaSA();
+ Double_t lambmax=AliITSReconstructor::GetRecoParam()->GetMaxLambdaSA();
+ SetCalculatedWindowSizes(nLoops,phimin,phimax,lambmin,lambmax);
+ }
+ fMinQ=AliITSReconstructor::GetRecoParam()->GetSAMinClusterCharge();
fITSclusters = 0;
- SetSixPoints();
- fListOfTracks=new TObjArray(0,0);
+ SetOuterStartLayer(1);
+ SetSAFlag(kFALSE);
+ fListOfTracks=new TClonesArray("AliITStrackMI",100);
+ fListOfSATracks=new TClonesArray("AliITStrackSA",100);
fCluLayer = 0;
fCluCoord = 0;
+ fMinNPoints = 3;
}
//_______________________________________________________________________
void AliITStrackerSA::ResetForFinding(){
fCoef3=0;
fPointc[0]=0;
fPointc[1]=0;
- fListOfTracks->Delete();
+ fListOfTracks->Clear();
+ fListOfSATracks->Clear();
}
//______________________________________________________________________
-Int_t AliITStrackerSA::FindTracks(AliESD* event){
+Int_t AliITStrackerSA::FindTracks(AliESDEvent* event, Bool_t useAllClusters){
// Track finder using the ESD object
-
- //controllare numero cluster sui layer1 e 2 (morti?)
- //non trova tracce...controllare..
+ AliDebug(2,Form(" field is %f",event->GetMagneticField()));
+ AliDebug(2,Form("SKIPPING %d %d %d %d %d %d",ForceSkippingOfLayer(0),ForceSkippingOfLayer(1),ForceSkippingOfLayer(2),ForceSkippingOfLayer(3),ForceSkippingOfLayer(4),ForceSkippingOfLayer(5)));
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){
- Int_t idx[12];
- 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
-
- 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];
+ Int_t nentr=event->GetNumberOfTracks();
+ if(!useAllClusters) {
+ while (nentr--) {
+ AliESDtrack *track=event->GetTrack(nentr);
+ if ((track->GetStatus()&AliESDtrack::kITSin) == AliESDtrack::kITSin){
+ Int_t idx[12];
+ Int_t ncl = track->GetITSclusters(idx);
+ for(Int_t k=0;k<ncl;k++){
+ AliITSRecPoint* cll = (AliITSRecPoint*)GetCluster(idx[k]);
+ cll->SetBit(kSAflag);
+ }
}
- 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){
- pflag=1;
- fPoint3[0]=fPointc[0];
- fPoint3[1]=fPointc[1];
+ }
+ }else{
+ while (nentr--) {
+ AliESDtrack *track=event->GetTrack(nentr);
+ if ((track->GetStatus()&AliESDtrack::kITSin) == AliESDtrack::kITSin){
+ Int_t idx[12];
+ Int_t ncl = track->GetITSclusters(idx);
+ for(Int_t k=0;k<ncl;k++){
+ AliITSRecPoint* cll = (AliITSRecPoint*)GetCluster(idx[k]);
+ cll->ResetBit(kSAflag);
+ }
}
-
- 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);
- pflag=1;
- if(nn[4]!=0) UpdatePoints();
- nn[5] = SearchClusters(5,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag);
-
-
- 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;
+ }
+ }
+ //Get primary vertex
+ 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[AliITSgeomTGeo::kNLayers]={0,0,0,0,0,0};
+ Int_t dmar[AliITSgeomTGeo::kNLayers]={0,0,0,0,0,0};
+ if (fCluLayer == 0) {
+ fCluLayer = new TClonesArray*[AliITSgeomTGeo::kNLayers];
+ fCluCoord = new TClonesArray*[AliITSgeomTGeo::kNLayers];
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) {
+ fCluLayer[i]=0;
+ fCluCoord[i]=0;
+ }
+ }
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
+ AliITSlayer &layer=fgLayers[i];
+ if (!ForceSkippingOfLayer(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
+ if(i>1 && cls->GetQ()<=fMinQ) continue; // cut on SDD and SSD cluster charge
+ nclusters[i]++;
}
- if(layOK>=numberofpoints){
-
- AliITStrackV2* tr2 = FitTrack(trs,primaryVertex);
-
- if(tr2==0) continue;
+ }
+ dmar[i]=0;
+ if(!fCluLayer[i]){
+ fCluLayer[i] = new TClonesArray("AliITSRecPoint",nclusters[i]);
+ }else{
+ fCluLayer[i]->Delete();
+ fCluLayer[i]->Expand(nclusters[i]);
+ }
+ if(!fCluCoord[i]){
+ fCluCoord[i] = new TClonesArray("AliITSclusterTable",nclusters[i]);
+ }else{
+ fCluCoord[i]->Delete();
+ fCluCoord[i]->Expand(nclusters[i]);
+ }
+ }
- AliESDtrack outtrack;
- outtrack.UpdateTrackParams(tr2,AliESDtrack::kITSin);
- event->AddTrack(&outtrack);
- ntrack++;
-
+ for(Int_t ilay=0;ilay<AliITSgeomTGeo::GetNLayers();ilay++){
+ TClonesArray &clulay = *fCluLayer[ilay];
+ TClonesArray &clucoo = *fCluCoord[ilay];
+ AliITSlayer &layer=fgLayers[ilay];
+ if (!ForceSkippingOfLayer(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;
+ if(ilay>1 && cls->GetQ()<=fMinQ) 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;
+ GetCoorAngles(cls,phi,lambda,x,y,z,primaryVertex);
+ GetCoorErrors(cls,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]++;
}
-
+ }
+ }
+
+ // track counter
+ Int_t ntrack=0;
+
+ static Int_t nClusLay[AliITSgeomTGeo::kNLayers];//counter for clusters on each layer
+ Int_t startLayForSeed=0;
+ Int_t lastLayForSeed=fOuterStartLayer;
+ Int_t nSeedSteps=lastLayForSeed-startLayForSeed;
+ Int_t seedStep=1;
+ if(fInwardFlag){
+ startLayForSeed=AliITSgeomTGeo::GetNLayers()-1;
+ lastLayForSeed=fInnerStartLayer;
+ nSeedSteps=startLayForSeed-lastLayForSeed;
+ seedStep=-1;
+ }
- delete trs;
- delete[] nn;
+ // loop on minimum number of points
+ for(Int_t iMinNPoints=AliITSgeomTGeo::GetNLayers(); iMinNPoints>=fMinNPoints; iMinNPoints--) {
+
+ // loop on starting layer for track finding
+ for(Int_t iSeedLay=0; iSeedLay<=nSeedSteps; iSeedLay++) {
+ Int_t theLay=startLayForSeed+iSeedLay*seedStep;
+ if(ForceSkippingOfLayer(theLay)) continue;
+ Int_t minNPoints=iMinNPoints-theLay;
+ if(fInwardFlag) minNPoints=iMinNPoints-(AliITSgeomTGeo::GetNLayers()-1-theLay);
+ for(Int_t i=theLay+1;i<AliITSgeomTGeo::GetNLayers();i++)
+ if(ForceSkippingOfLayer(i))
+ minNPoints--;
+ if(minNPoints<fMinNPoints) continue;
+
+ // loop on phi and lambda window size
+ for(Int_t nloop=0;nloop<fNloop;nloop++){
+ Int_t nclTheLay=fCluLayer[theLay]->GetEntries();
+ while(nclTheLay--){
+ ResetForFinding();
+ Bool_t useRP=SetFirstPoint(theLay,nclTheLay,primaryVertex);
+ if(!useRP) continue;
+ AliITStrackSA trs;
+
+ Int_t pflag=0;
+ Int_t kk;
+ for(kk=0;kk<AliITSgeomTGeo::GetNLayers();kk++) nClusLay[kk] = 0;
+
+ kk=0;
+ nClusLay[kk] = SearchClusters(theLay,fPhiWin[nloop],fLambdaWin[nloop],
+ &trs,primaryVertex[2],pflag);
+ Int_t nextLay=theLay+seedStep;
+ Bool_t goon=kTRUE;
+ while(goon){
+ kk++;
+ nClusLay[kk] = SearchClusters(nextLay,fPhiWin[nloop],fLambdaWin[nloop],
+ &trs,primaryVertex[2],pflag);
+ if(nClusLay[kk]!=0){
+ pflag=1;
+ if(kk==1) {
+ fPoint3[0]=fPointc[0];
+ fPoint3[1]=fPointc[1];
+ } else {
+ UpdatePoints();
+ }
+ }
+ nextLay+=seedStep;
+ if(nextLay<0 || nextLay==6) goon=kFALSE;
+ }
+
+
+ Int_t layOK=0;
+ if(!fInwardFlag){
+ for(Int_t nnp=0;nnp<AliITSgeomTGeo::GetNLayers()-theLay;nnp++){
+ if(nClusLay[nnp]!=0) layOK+=1;
+ }
+ }else{
+ for(Int_t nnp=theLay; nnp>=0; nnp--){
+ if(nClusLay[nnp]!=0) layOK+=1;
+ }
+ }
+ if(layOK>=minNPoints){
+ AliDebug(2,Form("---NPOINTS: %d; MAP: %d %d %d %d %d %d\n",layOK,nClusLay[0],nClusLay[1],nClusLay[2],nClusLay[3],nClusLay[4],nClusLay[5]));
+ AliITStrackV2* tr2 = 0;
+ tr2 = FitTrack(&trs,primaryVertex);
+ if(!tr2){
+ continue;
+ }
+ AliDebug(2,Form("---NPOINTS fit: %d\n",tr2->GetNumberOfClusters()));
+
+ StoreTrack(tr2,event,useAllClusters);
+ ntrack++;
+
+ }
+
+ }//end loop on clusters of theLay
+ } //end loop on window sizes
+ } //end loop on theLay
+ }//end loop on min points
+
+ // search for 1-point tracks in SPD, only for cosmics
+ // (A.Dainese 21.03.08)
+ if(AliITSReconstructor::GetRecoParam()->GetSAOnePointTracks() &&
+ TMath::Abs(event->GetMagneticField())<0.01) {
+ Int_t outerLayer=1; // only SPD
+ for(Int_t innLay=0; innLay<=TMath::Min(1,fOuterStartLayer); innLay++) {
+ // counter for clusters on each layer
+
+ for(Int_t nloop=0;nloop<fNloop;nloop++){
+ Int_t nclInnLay=fCluLayer[innLay]->GetEntries();
+ while(nclInnLay--){ //loop starting from layer innLay
+ ResetForFinding();
+ Bool_t useRP=SetFirstPoint(innLay,nclInnLay,primaryVertex);
+ if(!useRP) continue;
+ AliITStrackSA trs;
+
+ Int_t pflag=0;
+ Int_t kk;
+ for(kk=0;kk<AliITSgeomTGeo::GetNLayers();kk++) nClusLay[kk] = 0;
+
+ kk=0;
+ nClusLay[kk] = SearchClusters(innLay,fPhiWin[nloop],fLambdaWin[nloop],
+ &trs,primaryVertex[2],pflag);
+ for(Int_t nextLay=innLay+1; nextLay<=outerLayer; nextLay++) {
+ kk++;
+ nClusLay[kk] = SearchClusters(nextLay,fPhiWin[nloop],fLambdaWin[nloop],
+ &trs,primaryVertex[2],pflag);
+ if(nClusLay[kk]!=0){
+ pflag=1;
+ if(kk==1) {
+ fPoint3[0]=fPointc[0];
+ fPoint3[1]=fPointc[1];
+ } else {
+ UpdatePoints();
+ }
+ }
+ }
+
+ Int_t layOK=0;
+ for(Int_t nnp=0;nnp<AliITSgeomTGeo::GetNLayers()-innLay;nnp++){
+ if(nClusLay[nnp]!=0) layOK+=1;
+ }
+ if(layOK==1) {
+ AliDebug(2,Form("----NPOINTS: %d; MAP: %d %d %d %d %d %d\n",layOK,nClusLay[0],nClusLay[1],nClusLay[2],nClusLay[3],nClusLay[4],nClusLay[5]));
+ AliITStrackV2* tr2 = 0;
+ Bool_t onePoint = kTRUE;
+ tr2 = FitTrack(&trs,primaryVertex,onePoint);
+ if(!tr2){
+ continue;
+ }
+ AliDebug(2,Form("----NPOINTS fit: %d\n",tr2->GetNumberOfClusters()));
+
+ StoreTrack(tr2,event,useAllClusters);
+ ntrack++;
+
+ }
+
+ }//end loop on clusters of innLay
+ } //end loop on window sizes
- }//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++){
- 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;
- Info("FindTracks","Number of found tracks: %d",event->GetNumberOfTracks());
+ } //end loop on innLay
+ } // end search 1-point tracks
+
+ if(!useAllClusters) AliInfo(Form("Number of found tracks: %d",event->GetNumberOfTracks()));
+ ResetForFinding();
return 0;
}
-
-
-
-
//________________________________________________________________________
-AliITStrackV2* AliITStrackerSA::FitTrack(AliITStrackSA* tr,Double_t *primaryVertex){
- //fit of the found track
+AliITStrackV2* AliITStrackerSA::FitTrack(AliITStrackSA* tr,Double_t *primaryVertex,Bool_t onePoint) {
+ //fit of the found track (most general case, also <6 points, layers missing)
+ // A.Dainese 16.11.07
- 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);
- }
+ const Int_t kMaxClu=AliITStrackSA::kMaxNumberOfClusters;
- Int_t nclusters = tr->GetNumberOfClustersSA();
- TObjArray** listlayer = new TObjArray*[fGeom->GetNlayers()];
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
- listlayer[i] = new TObjArray(0,0);
+ static Int_t firstmod[AliITSgeomTGeo::kNLayers];
+
+ static Int_t clind[AliITSgeomTGeo::kNLayers][kMaxClu];
+ static Int_t clmark[AliITSgeomTGeo::kNLayers][kMaxClu];
+ static Int_t end[AliITSgeomTGeo::kNLayers];
+ static AliITSRecPoint *listlayer[AliITSgeomTGeo::kNLayers][kMaxClu];
+
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) {
+ firstmod[i]=AliITSgeomTGeo::GetModuleIndex(i+1,1,1);
+ end[i]=0;
+ for(Int_t j=0;j<kMaxClu; j++){
+ clind[i][j]=0;
+ clmark[i][j]=0;
+ listlayer[i][j]=0;
+ }
}
-
- TArrayI clind0(20);
- TArrayI clind1(20);
- TArrayI clind2(20);
- TArrayI clind3(20);
- 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()];
- Int_t * kkk = new Int_t[fGeom->GetNlayers()];
- for(Int_t i=0;i<fGeom->GetNlayers();i++) {nnn[i]=0;kkk[i]=0;}
+
+ Int_t nclusters = tr->GetNumberOfClustersSA();
for(Int_t ncl=0;ncl<nclusters;ncl++){
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]++;}
- if(lay==1) { listlayer[1]->AddLast(cl); clind1[nnn[1]]=index;nnn[1]++;}
- if(lay==2) { listlayer[2]->AddLast(cl); clind2[nnn[2]]=index;nnn[2]++;}
- if(lay==3) { listlayer[3]->AddLast(cl); clind3[nnn[3]]=index;nnn[3]++;}
- if(lay==4) { listlayer[4]->AddLast(cl); clind4[nnn[4]]=index;nnn[4]++;}
- if(lay==5) { listlayer[5]->AddLast(cl); clind5[nnn[5]]=index;nnn[5]++;}
+ Int_t nInLay=end[lay];
+ listlayer[lay][nInLay]=cl;
+ clind[lay][nInLay]=index;
+ end[lay]++;
}
- delete [] nnn;
- for(Int_t nlay=0;nlay<fGeom->GetNlayers();nlay++){
+ for(Int_t nlay=0;nlay<AliITSgeomTGeo::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]++;}
-
+ clmark[nlay][ncl]=mark;
}
}
- delete [] kkk;
-
- Int_t * end = new Int_t[fGeom->GetNlayers()];
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
- if(listlayer[i]->GetEntries()==0) end[i]=1;
- else end[i]=listlayer[i]->GetEntries();
+ Int_t firstLay=-1,secondLay=-1;
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) {
+ if(end[i]==0) {
+ end[i]=1;
+ }else{
+ if(firstLay==-1) {
+ firstLay=i;
+ } else if(secondLay==-1) {
+ secondLay=i;
+ }
+ }
}
- 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
- AliITSRecPoint* cl0 = (AliITSRecPoint*)listlayer[0]->At(l1);
- Double_t x1,y1,z1,sx1,sy1,sz1;
- Double_t x2,y2,z2,sx2,sy2,sz2;
- 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
- 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
- AliITSRecPoint* cl2 = (AliITSRecPoint*)listlayer[2]->At(l3);
-
- if(cl0==0 && cl1!=0) {
- 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];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 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
- AliITSRecPoint* cl3 = (AliITSRecPoint*)listlayer[3]->At(l4);
- for(Int_t l5=0;l5<end[4];l5++){ //loop on layer 5
- AliITSRecPoint* cl4 = (AliITSRecPoint*)listlayer[4]->At(l5);
- for(Int_t l6=0;l6<end[5];l6++){ //loop on layer 6
- AliITSRecPoint* cl5 = (AliITSRecPoint*)listlayer[5]->At(l6);
- AliITStrackSA* trac = new AliITStrackSA(fGeom,layer,ladder,detector,yclu1,zclu1,phi2,tgl2,cv,1);
-
+ if(firstLay==-1 || (secondLay==-1 && !onePoint)) return 0;
+ TClonesArray &arrMI= *fListOfTracks;
+ TClonesArray &arrSA= *fListOfSATracks;
+ Int_t nFoundTracks=0;
+
+ for(Int_t l0=0;l0<end[0];l0++){ //loop on layer 1
+ AliITSRecPoint* cl0 = (AliITSRecPoint*)listlayer[0][l0];
+ for(Int_t l1=0;l1<end[1];l1++){ //loop on layer 2
+ AliITSRecPoint* cl1 = (AliITSRecPoint*)listlayer[1][l1];
+ for(Int_t l2=0;l2<end[2];l2++){ //loop on layer 3
+ AliITSRecPoint* cl2 = (AliITSRecPoint*)listlayer[2][l2];
+ for(Int_t l3=0;l3<end[3];l3++){ //loop on layer 4
+ AliITSRecPoint* cl3 = (AliITSRecPoint*)listlayer[3][l3];
+ for(Int_t l4=0;l4<end[4];l4++){ //loop on layer 5
+ AliITSRecPoint* cl4 = (AliITSRecPoint*)listlayer[4][l4];
+ for(Int_t l5=0;l5<end[5];l5++){ //loop on layer 6
+ AliITSRecPoint* cl5 = (AliITSRecPoint*)listlayer[5][l5];
+
+
+ Double_t x1,y1,z1,sx1,sy1,sz1;
+ Double_t x2,y2,z2,sx2,sy2,sz2;
+ AliITSRecPoint* p1=0;
+ AliITSRecPoint* p2=0;
+ Int_t index1=0,index2=0;
+ Int_t mrk1=0,mrk2=0;
+
+ switch(firstLay) {
+ case 0:
+ p1=cl0;
+ index1=clind[0][l0];mrk1=clmark[0][l0];
+ break;
+ case 1:
+ p1=cl1;
+ index1=clind[1][l1];mrk1=clmark[1][l1];
+ break;
+ case 2:
+ p1=cl2;
+ index1=clind[2][l2];mrk1=clmark[2][l2];
+ break;
+ case 3:
+ p1=cl3;
+ index1=clind[3][l3];mrk1=clmark[3][l3];
+ break;
+ case 4:
+ p1=cl4;
+ index1=clind[4][l4];mrk1=clmark[4][l4];
+ break;
+ }
+
+ switch(secondLay) {
+ case 1:
+ p2=cl1;
+ index2=clind[1][l1];mrk2=clmark[1][l1];
+ break;
+ case 2:
+ p2=cl2;
+ index2=clind[2][l2];mrk2=clmark[2][l2];
+ break;
+ case 3:
+ p2=cl3;
+ index2=clind[3][l3];mrk2=clmark[3][l3];
+ break;
+ case 4:
+ p2=cl4;
+ index2=clind[4][l4];mrk2=clmark[4][l4];
+ break;
+ case 5:
+ p2=cl5;
+ index2=clind[5][l5];mrk2=clmark[5][l5];
+ break;
+ default:
+ p2=0;
+ index2=-1;mrk2=-1;
+ break;
+ }
+
+ Int_t module1 = p1->GetDetectorIndex()+firstmod[firstLay];
+ Int_t layer,ladder,detector;
+ AliITSgeomTGeo::GetModuleId(module1,layer,ladder,detector);
+ Float_t yclu1 = p1->GetY();
+ Float_t zclu1 = p1->GetZ();
+ Double_t cv=0,tgl2=0,phi2=0;
+
+ Int_t cln1=mrk1;
+ AliITSclusterTable* arr1 = (AliITSclusterTable*)GetClusterCoord(firstLay,cln1);
+ x1 = arr1->GetX();
+ y1 = arr1->GetY();
+ z1 = arr1->GetZ();
+ sx1 = arr1->GetSx();
+ sy1 = arr1->GetSy();
+ sz1 = arr1->GetSz();
+
+ if(secondLay>0) {
+ Int_t cln2=mrk2;
+ AliITSclusterTable* arr2 = (AliITSclusterTable*)GetClusterCoord(secondLay,cln2);
+ x2 = arr2->GetX();
+ y2 = arr2->GetY();
+ z2 = arr2->GetZ();
+ sx2 = arr2->GetSx();
+ sy2 = arr2->GetSy();
+ sz2 = arr2->GetSz();
+ cv = Curvature(primaryVertex[0],primaryVertex[1],x1,y1,x2,y2);
+ tgl2 = (z2-z1)/TMath::Sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
+ phi2 = TMath::ATan2((y2-y1),(x2-x1));
+ } else { // special case of 1-point tracks, only for cosmics (B=0)
+ x2 = primaryVertex[0];
+ y2 = primaryVertex[1];
+ z2 = primaryVertex[2];
+ cv = 0;
+ tgl2 = (z1-z2)/TMath::Sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
+ phi2 = TMath::ATan2((y1-y2),(x1-x2));
+ }
+
+
+ AliITStrackSA trac(layer,ladder,detector,yclu1,zclu1,phi2,tgl2,cv,1);
+
+
if(cl5!=0) {
- trac->AddClusterV2(5,(clind5[l6] & 0x0fffffff)>>0);
- trac->AddClusterMark(5,mark5[l6]);
+ trac.AddClusterV2(5,(clind[5][l5] & 0x0fffffff)>>0);
+ trac.AddClusterMark(5,clmark[5][l5]);
}
if(cl4!=0){
- trac->AddClusterV2(4,(clind4[l5] & 0x0fffffff)>>0);
- trac->AddClusterMark(4,mark4[l5]);
+ trac.AddClusterV2(4,(clind[4][l4] & 0x0fffffff)>>0);
+ trac.AddClusterMark(4,clmark[4][l4]);
}
if(cl3!=0){
- trac->AddClusterV2(3,(clind3[l4] & 0x0fffffff)>>0);
- trac->AddClusterMark(3,mark3[l4]);
+ trac.AddClusterV2(3,(clind[3][l3] & 0x0fffffff)>>0);
+ trac.AddClusterMark(3,clmark[3][l3]);
}
if(cl2!=0){
- trac->AddClusterV2(2,(clind2[l3] & 0x0fffffff)>>0);
- trac->AddClusterMark(2,mark2[l3]);
+ trac.AddClusterV2(2,(clind[2][l2] & 0x0fffffff)>>0);
+ trac.AddClusterMark(2,clmark[2][l2]);
}
if(cl1!=0){
- trac->AddClusterV2(1,(clind1[l2] & 0x0fffffff)>>0);
- trac->AddClusterMark(1,mark1[l2]);
+ trac.AddClusterV2(1,(clind[1][l1] & 0x0fffffff)>>0);
+ trac.AddClusterMark(1,clmark[1][l1]);
}
if(cl0!=0){
- trac->AddClusterV2(0,(clind0[l1] & 0x0fffffff)>>0);
- trac->AddClusterMark(0,mark0[l1]);
+ trac.AddClusterV2(0,(clind[0][l0] & 0x0fffffff)>>0);
+ trac.AddClusterMark(0,clmark[0][l0]);
}
+
//fit with Kalman filter using AliITStrackerMI::RefitAt()
-
+ AliITStrackSA ot(trac);
- AliITStrackMI* ot = new AliITStrackSA(*trac);
-
- ot->ResetCovariance(10.);
- ot->ResetClusters();
+ ot.ResetCovariance(10.);
+ ot.ResetClusters();
- if(RefitAt(49.,ot,trac)){ //fit from layer 1 to layer 6
- AliITStrackMI *otrack2 = new AliITStrackMI(*ot);
- otrack2->ResetCovariance(10.);
- otrack2->ResetClusters();
- //fit from layer 6 to layer 1
- if(RefitAt(3.7,otrack2,ot)) {
- fListOfTracks->AddLast(otrack2);
- new (tri[nlist]) AliITStrackSA(*trac);
- nlist++;
- } else {
- delete otrack2;
- }
+ // Propagate inside the innermost layer with a cluster
+ if(ot.Propagate(ot.GetX()-0.1*ot.GetX())) {
+
+ if(RefitAt(AliITSRecoParam::GetrInsideITSscreen(),&ot,&trac)){ //fit from layer 1 to layer 6
+ AliITStrackMI otrack2(ot);
+ otrack2.ResetCovariance(10.);
+ otrack2.ResetClusters();
+ //fit from layer 6 to layer 1
+ if(RefitAt(AliITSRecoParam::GetrInsideSPD1(),&otrack2,&ot)) {
+ new(arrMI[nFoundTracks]) AliITStrackMI(otrack2);
+ new(arrSA[nFoundTracks]) AliITStrackSA(trac);
+ ++nFoundTracks;
+ }
- }
-
- delete ot;
- delete trac;
+ }
+ }
}//end loop layer 6
}//end loop layer 5
- }//end loop layer 4
-
+ }//end loop layer 4
}//end loop layer 3
}//end loop layer 2
}//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;
- listSA->Delete();
- delete listSA;
- delete [] firstmod;
- return 0;
- }
- Int_t lowchi2 = FindTrackLowChiSquare(fListOfTracks,dim);
+ if(fListOfTracks->GetEntries()==0) return 0;
+
+ Int_t lowchi2 = FindTrackLowChiSquare();
AliITStrackV2* otrack =(AliITStrackV2*)fListOfTracks->At(lowchi2);
- AliITStrackSA* trsa = (AliITStrackSA*)listSA->At(lowchi2);
+ AliITStrackSA* trsa = (AliITStrackSA*)fListOfSATracks->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;
+ if(otrack==0) return 0;
+
+ Int_t indexc[AliITSgeomTGeo::kNLayers];
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) indexc[i]=0;
for(Int_t nind=0;nind<otrack->GetNumberOfClusters();nind++){
indexc[nind] = otrack->GetClusterIndex(nind);
}
- 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()){
- AliITSRecPoint* cl5 = (AliITSRecPoint*)GetCluster(indexc[5]);
- labl[0]=cl5->GetLabel(0);
- labl[1]=cl5->GetLabel(1);
- labl[2]=cl5->GetLabel(2);
- }
- delete [] indexc;
- if(otrack->GetNumberOfClusters()==(fGeom->GetNlayers()-1)){
- labl[0]=-1;
- labl[1]=-1;
- labl[2]=-1;
+ Int_t labl[6][3];
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) {
+ if(i<otrack->GetNumberOfClusters()) {
+ AliITSRecPoint* cl = (AliITSRecPoint*)GetCluster(indexc[i]);
+ labl[i][0]=cl->GetLabel(0);
+ labl[i][1]=cl->GetLabel(1);
+ labl[i][2]=cl->GetLabel(2);
+ } else {
+ labl[i][0]=-1;
+ labl[i][1]=-1;
+ labl[i][2]=-1;
+ }
}
- 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],
- cl0->GetLabel(1),cl1->GetLabel(1),
- cl2->GetLabel(1),cl3->GetLabel(1),
- cl4->GetLabel(1),labl[1],
- cl0->GetLabel(2),cl1->GetLabel(2),
- cl2->GetLabel(2),cl3->GetLabel(2),
- cl4->GetLabel(2),labl[2],numberofpoints);
+
+ Int_t label=FindLabel(labl[0][0],labl[1][0],labl[2][0],labl[3][0],labl[4][0],labl[5][0]);
+ Int_t lflag=0;
+ for(Int_t i=0;i<otrack->GetNumberOfClusters();i++)
+ if(labl[i][0]==label || labl[i][1]==label || labl[i][2]==label) lflag++;
+ if(lflag<otrack->GetNumberOfClusters()) label = -label;
otrack->SetLabel(label);
- //remove clusters of found track
- for(Int_t nlay=0;nlay<fGeom->GetNlayers();nlay++){
+ //remove clusters of found track
+ for(Int_t nlay=0;nlay<AliITSgeomTGeo::GetNLayers();nlay++){
for(Int_t cln=0;cln<trsa->GetNumberOfMarked(nlay);cln++){
Int_t index = trsa->GetClusterMark(nlay,cln);
fCluLayer[nlay]->RemoveAt(index);
fCluLayer[nlay]->Compress();
}
}
- listSA->Delete();
- delete listSA;
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
- delete listlayer[i];
- }
- delete [] listlayer;
- delete [] firstmod;
return otrack;
}
+//_______________________________________________________
+void AliITStrackerSA::StoreTrack(AliITStrackV2 *t,AliESDEvent *event, Bool_t pureSA) const
+{
+ //
+ // Add new track to the ESD
+ //
+ AliESDtrack outtrack;
+ outtrack.UpdateTrackParams(t,AliESDtrack::kITSin);
+ if(pureSA) outtrack.SetStatus(AliESDtrack::kITSpureSA);
+ for(Int_t i=0;i<12;i++) {
+ outtrack.SetITSModuleIndex(i,t->GetModuleIndex(i));
+ }
+ Double_t sdedx[4]={0.,0.,0.,0.};
+ for(Int_t i=0; i<4; i++) sdedx[i]=t->GetSampledEdx(i);
+ outtrack.SetITSdEdxSamples(sdedx);
+ event->AddTrack(&outtrack);
+
+ return;
+}
//_______________________________________________________
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
+
+ if(ForceSkippingOfLayer(layer)) return 0;
+
Int_t nc=0;
AliITSlayer &lay = fgLayers[layer];
Double_t r=lay.GetR();
- if(pflag==1){
+ 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);
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);
+ Double_t fi1=TMath::ATan2(cy1-fPoint1[1],cx1-fPoint1[0]);
+ Double_t fi2=TMath::ATan2(cy2-fPoint1[1],cx2-fPoint1[0]);
fPhiEstimate=ChoosePoint(fi1,fi2,fPhic);
}
AliITSRecPoint *c = (AliITSRecPoint*)fCluLayer[layer]->At(index);
if (!c) continue;
if (c->GetQ()<=0) continue;
+ if(layer>1 && c->GetQ()<=fMinQ) continue;
AliITSclusterTable* arr = (AliITSclusterTable*)GetClusterCoord(layer,index);
Double_t phi = arr->GetPhi();
return nc;
}
+//________________________________________________________________
+Bool_t AliITStrackerSA::SetFirstPoint(Int_t lay, Int_t clu, Double_t* primaryVertex){
+ // Sets the first point (seed) for tracking
+
+ AliITSRecPoint* cl = (AliITSRecPoint*)fCluLayer[lay]->At(clu);
+ if(!cl) return kFALSE;
+ if (cl->GetQ()<=0) return kFALSE;
+ if(lay>1 && cl->GetQ()<=fMinQ) return kFALSE;
+
+ AliITSclusterTable* arr = (AliITSclusterTable*)GetClusterCoord(lay,clu);
+ fPhic = arr->GetPhi();
+ fLambdac = arr->GetLambda();
+ fPhiEstimate = fPhic;
+ fPoint1[0]=primaryVertex[0];
+ fPoint1[1]=primaryVertex[1];
+ fPoint2[0]=arr->GetX();
+ fPoint2[1]=arr->GetY();
+ return kTRUE;
+}
+
//________________________________________________________________
void AliITStrackerSA::UpdatePoints(){
//update of points for the estimation of the curvature
//_________________________________________________________________
-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;
- 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++){
- AliITStrackV2* trk = (AliITStrackV2*)tracklist->At(i);
- chi2[i]=trk->GetChi2();
- index[i]=i;
- }
-
- Int_t w=0;Double_t value;
- Int_t lp;
- while(w<dim){
- for(Int_t j=w+1;j<dim;j++){
- if(chi2[w]<chi2[j]){
- value=chi2[w];
- chi2[w]=chi2[j];
- chi2[j]=value;
- lp=index[w];
- index[w]=index[j];
- index[j]=lp;
- }
+Int_t AliITStrackerSA::FindTrackLowChiSquare() const {
+ // returns track with lowest chi square
+ Int_t dim=fListOfTracks->GetEntries();
+ if(dim<=1) return 0;
+ AliITStrackV2* trk = (AliITStrackV2*)fListOfTracks->At(0);
+ Double_t minChi2=trk->GetChi2();
+ Int_t index=0;
+ for(Int_t i=1;i<dim;i++){
+ trk = (AliITStrackV2*)fListOfTracks->At(i);
+ Double_t chi2=trk->GetChi2();
+ if(chi2<minChi2){
+ minChi2=chi2;
+ index=i;
}
- w++;
}
-
- delete [] chi2;
- delete [] index;
- return index[dim-1];
+ return index;
}
//__________________________________________________________
-Int_t AliITStrackerSA::FindLabel(Int_t l1, Int_t l2, Int_t l3, Int_t l4, Int_t l5, Int_t l6){
+Int_t AliITStrackerSA::FindLabel(Int_t l0, Int_t l1, Int_t l2, Int_t l3, Int_t l4, Int_t l5){
//function used to determine the track label
- Int_t lb[6] = {l1,l2,l3,l4,l5,l6};
+ Int_t lb[6] = {l0,l1,l2,l3,l4,l5};
Int_t aa[6]={1,1,1,1,1,1};
Int_t ff=0;
Int_t ll=0;
Int_t k=0;Int_t w=0;Int_t num=6;
- if(lb[5]==-1) num=5;
+ for(Int_t i=5;i>=0;i--) if(lb[i]==-1) num=i;
while(k<num){
aa[i]=0;
}
}
- k++;
+ k++;
}
while(w<num){
-
+
for(Int_t j=0;j<6;j++){
if(aa[w]<aa[j]){
ff=aa[w];
lb[j]=ll;
}
}
- w++;
+ w++;
}
- if(num==6) return lb[5];
- else return lb[4];
+
+ if(num<1) return -1;
+ return lb[num-1];
}
//_____________________________________________________________________________
Int_t AliITStrackerSA::Label(Int_t gl1, Int_t gl2, Int_t gl3, Int_t gl4, Int_t gl5, Int_t gl6,Int_t gl7, Int_t gl8, Int_t gl9, Int_t gl10,Int_t gl11,
-Int_t gl12, Int_t gl13, Int_t gl14,Int_t gl15, Int_t gl16, Int_t gl17, Int_t gl18, Int_t numberofpoints){
+Int_t gl12, Int_t gl13, Int_t gl14,Int_t gl15, Int_t gl16, Int_t gl17, Int_t gl18, Int_t minNPoints){
//function used to assign label to the found track. If track is fake, the label is negative
if(lb0[i]==ll || lb1[i]==ll || lb2[i]==ll) lflag+=1;
}
- if(lflag>=numberofpoints) return ll;
+ if(lflag>=minNPoints) return ll;
else return -ll;
}
-
//_____________________________________________________________________________
-void AliITStrackerSA::SetWindowSizes(Int_t n, Double_t *phi, Double_t *lam){
+void AliITStrackerSA::SetCalculatedWindowSizes(Int_t n, Float_t phimin, Float_t phimax, Float_t lambdamin, Float_t lambdamax){
+ // Set sizes of the phi and lambda windows used for track finding
+ fNloop = n;
+ if(fPhiWin) delete [] fPhiWin;
+ if(fLambdaWin) delete [] fLambdaWin;
+ fPhiWin = new Double_t[fNloop];
+ fLambdaWin = new Double_t[fNloop];
+ Float_t stepPhi=(phimax-phimin)/(Float_t)(fNloop-1);
+ Float_t stepLambda=(lambdamax-lambdamin)/(Float_t)(fNloop-1);
+ for(Int_t k=0;k<fNloop;k++){
+ Float_t phi=phimin+k*stepPhi;
+ Float_t lam=lambdamin+k*stepLambda;
+ fPhiWin[k]=phi;
+ fLambdaWin[k]=lam;
+ }
+}
+//_____________________________________________________________________________
+void AliITStrackerSA::SetFixedWindowSizes(Int_t n, Double_t *phi, Double_t *lam){
// Set sizes of the phi and lambda windows used for track finding
fNloop = n;
if(phi){ // user defined values
fPhiWin = new Double_t[fNloop];
fLambdaWin = new Double_t[fNloop];
-
+
+ Double_t factor=AliITSReconstructor::GetRecoParam()->GetFactorSAWindowSizes(); // possibility to enlarge windows for cosmics reco with large misalignments (A.Dainese)
+
for(Int_t k=0;k<fNloop;k++){
- fPhiWin[k]=phid[k];
- fLambdaWin[k]=lambdad[k];
+ fPhiWin[k]=phid[k]*factor;
+ fLambdaWin[k]=lambdad[k]*factor;
}
}
}
//_______________________________________________________________________
-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){
+void AliITStrackerSA::GetCoorAngles(AliITSRecPoint* cl,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);
Float_t cp=TMath::Cos(phi1), sp=TMath::Sin(phi1);
Float_t r=tx*cp+ty*sp;
- x= r*cp - cl->GetY()*sp;
+ xyz= r*cp - cl->GetY()*sp;
y= r*sp + cl->GetY()*cp;
z=cl->GetZ();
-
- phi=TMath::ATan2(y,x);
+*/
+ Float_t xyz[3];
+ cl->GetGlobalXYZ(xyz);
+ x=xyz[0];
+ y=xyz[1];
+ z=xyz[2];
+
+ phi=TMath::ATan2(y-vertex[1],x-vertex[0]);
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
+void AliITStrackerSA::GetCoorErrors(AliITSRecPoint* cl,Float_t &sx,Float_t &sy, Float_t &sz){
+ //returns sigmax, 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);
+ Int_t lay,lad,det;
+ AliITSgeomTGeo::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);
-
+*/
+ Float_t covm[6];
+ cl->GetGlobalCov(covm);
+ sx=TMath::Sqrt(covm[0]);
+ sy=TMath::Sqrt(covm[3]);
+ sz=TMath::Sqrt(covm[5]);
+/*
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