* provided "as is" without express or implied warranty. *
**************************************************************************/
+/* $Id$ */
+
////////////////////////////////////////////////////
// Stand alone tracker class //
// Origin: Elisabetta Crescio //
// tracks are saved as AliITStrackV2 objects //
////////////////////////////////////////////////////
-//#include <stdlib.h>
-#include "TArrayI.h"
+#include <stdlib.h>
+
+#include <TArrayI.h>
#include <TBranch.h>
-#include <TMath.h>
#include <TObjArray.h>
#include <TTree.h>
-#include "AliRun.h"
+
+#include "AliESDEvent.h"
+#include "AliESDVertex.h"
+#include "AliESDtrack.h"
+#include "AliITSVertexer.h"
#include "AliITSclusterTable.h"
-#include "AliITSclusterV2.h"
-#include "AliITSgeom.h"
-#include "AliITSRiemannFit.h"
-#include "AliITStrackerSA.h"
+#include "AliITSRecPoint.h"
+#include "AliITSgeomTGeo.h"
#include "AliITStrackSA.h"
-#include "AliITSVertexer.h"
-#include "AliITSVertex.h"
-
+#include "AliITStrackerSA.h"
+#include "AliRun.h"
ClassImp(AliITStrackerSA)
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA():AliITStrackerV2(){
+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),
+fITSclusters(0),
+fSixPoints(0),
+fOuterStartLayer(0),
+fCluLayer(0),
+fCluCoord(0){
// Default constructor
Init();
+
}
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom, AliITSVertex *vert):AliITStrackerV2(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),
+fITSclusters(0),
+fSixPoints(0),
+fOuterStartLayer(0),
+fCluLayer(0),
+fCluCoord(0)
{
// Standard constructor (Vertex is known and passed to this obj.)
- Init();
- fVert = vert;
- fGeom = geom;
-}
+ if (geom) {
+ AliWarning("\"geom\" is actually a dummy argument !");
+ }
-//______________________________________________________________________
-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");
+ Init();
+ fVert = 0;
+
}
-//______________________________________________________________________
-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(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),
+fITSclusters(0),
+fSixPoints(0),
+fOuterStartLayer(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();
+
}
//____________________________________________________________________________
-AliITStrackerSA::AliITStrackerSA(AliITSgeom *geom, AliITSVertexer *vertexer):AliITStrackerV2(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),
+fITSclusters(0),
+fSixPoints(0),
+fOuterStartLayer(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(AliITStrackerSA& tracker):AliITStrackerV2(){
+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),
+fITSclusters(tracker.fITSclusters),
+fSixPoints(tracker.fSixPoints),
+fOuterStartLayer(tracker.fOuterStartLayer),
+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 AliITSVertex(*tracker.fVert);
+ fVert = new AliESDVertex(*tracker.fVert);
}
else {
fVert = tracker.fVert;
}
- fVertexer = tracker.fVertexer;
- fGeom = tracker.fGeom;
- fFlagLoad = tracker.fFlagLoad;
- fTable = tracker.fTable;
+ 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->~AliITStrackerSA();
+ new(this) AliITStrackerSA(source);
+ return *this;
+
}
//____________________________________________________________________________
AliITStrackerSA::~AliITStrackerSA(){
// destructor
- // if fVertexer is not null, the AliITSVertex obj. is owned by this class
+ // if fVertexer is not null, the AliESDVertex obj. is owned by this class
// and is deleted here
if(fVertexer){
if(fVert)delete fVert;
}
fVert = 0;
fVertexer = 0;
- fGeom = 0;
- fFlagLoad = 0;
+
if(fPhiWin)delete []fPhiWin;
if(fLambdaWin)delete []fLambdaWin;
- fTable =0;
+ fListOfTracks->Delete();
+ delete fListOfTracks;
+ if(fCluLayer){
+ 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<AliITSgeomTGeo::GetNLayers();i++){
+ if(fCluCoord[i]){
+ fCluCoord[i]->Delete();
+ delete fCluCoord[i];
+ }
+ }
+ delete [] fCluCoord;
+ }
+
+}
+
+//____________________________________________________________________________
+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);
+ return rc;
}
//____________________________________________________________________________
fPointc[1]=0;
fVert = 0;
fVertexer = 0;
- fGeom = 0;
- fFlagLoad = 0;
SetWindowSizes();
- fTable = 0;
-}
+ fITSclusters = 0;
+ SetSixPoints();
+ SetOuterStartLayer(0);
+ SetSAFlag(kFALSE);
+ fListOfTracks=new TObjArray(0,0);
+ fCluLayer = 0;
+ fCluCoord = 0;
+ }
//_______________________________________________________________________
void AliITStrackerSA::ResetForFinding(){
// Reset data members used in all loops during track finding
fCoef3=0;
fPointc[0]=0;
fPointc[1]=0;
+ fListOfTracks->Delete();
}
-//____________________________________________________________________________
-void AliITStrackerSA::FindTracks(TTree *clusterTree, TTree *out,Int_t evnumber,char *opt){
-
- /**************************************************************************
- * Options: to use only ITS execute FindTracks *
- * to define good tracks with 6 points out of 6 in the ITS write *
- * *opt="6/6". The default is *opt="6/6" *
- * *
- * *
- * Example: to execute function with only the ITS (no combined tracking *
- * with TPC+ITS) and requiring 5/6 points to define a good track *
- * use: FindTracks(treein,treeout,evnumber,"5/6") *
- * to execute combined tracking, before using FindTracks use *
- * UseFoundTracksV2 *
- *************************************************************************/
-
- //options
- TString choice(opt);
- Bool_t sixpoints= choice.Contains("6/6");
-
- //Fill array with cluster indices for each module
- if(!fTable){
- fTable = new AliITSclusterTable(fGeom,this);
- fTable->FillArray(clusterTree,evnumber);
- }
- //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;
+
+
+
+//______________________________________________________________________
+Int_t AliITStrackerSA::FindTracks(AliESDEvent* event){
+
+// 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;
}
- fVert->PrintStatus();
+
+
+ //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);
+ }
+ }
+ }
- SetEventNumber(evnumber);
- if(GetFlagLoadedClusters()==0) LoadClusters(clusterTree);
+ //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
-//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 nclusters[6]={0,0,0,0,0,0};
+ Int_t dmar[6]={0,0,0,0,0,0};
+ if (fCluLayer == 0) {
+ fCluLayer = new TClonesArray*[AliITSgeomTGeo::GetNLayers()];
+ fCluCoord = new TClonesArray*[AliITSgeomTGeo::GetNLayers()];
+ 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];
+ 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;
+ delete fCluLayer[i];
+ fCluLayer[i] = new TClonesArray("AliITSRecPoint",nclusters[i]);
+ delete fCluCoord[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);
- }
- // firstmod [i] number of the first module in the ITS layer i.
-
- AliITSlayer &layer=fgLayers[0]; // first layer
- Int_t ntrack=0;
- //loop on the different windows
- for(Int_t nloop=0;nloop<fNloop;nloop++){
- Int_t ncl=layer.GetNumberOfClusters();
- while(ncl--){ //loop starting from layer 0
- ResetForFinding();
- Int_t pflag=0;
- AliITSclusterV2* cl = layer.GetCluster(ncl);
- if(cl->IsUsed()==1) continue;
- Double_t x,y,z;
- Int_t module = cl->GetDetectorIndex()+firstmod[0];
- GetClusterGCoordinates(cl,module,x,y,z);
- fPhic = TMath::ATan2(y,x);
- fLambdac = TMath::ATan2(z-primaryVertex[2],TMath::Sqrt((x-primaryVertex[0])*(x-primaryVertex[0])+(y-primaryVertex[1])*(y-primaryVertex[1])));
- fPhiEstimate = fPhic;
- AliITStrackSA* trs = new AliITStrackSA();
- fPoint1[0]=primaryVertex[0];
- fPoint1[1]=primaryVertex[1];
- fPoint2[0]=x;
- fPoint2[1]=y;
-
- 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],primaryVertex[1],primaryVertex[0],pflag,fTable);
- nn[1] = SearchClusters(1,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],primaryVertex[1],primaryVertex[0],pflag,fTable);
+
+ Int_t * firstmod = new Int_t[AliITSgeomTGeo::GetNLayers()];
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
+ firstmod[i]=AliITSgeomTGeo::GetModuleIndex(i+1,1,1);
+ }
+
+ for(Int_t ilay=0;ilay<AliITSgeomTGeo::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;
+ 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]++;
+ }
+ }
+
+
+ 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[AliITSgeomTGeo::GetNLayers()];//counter for clusters on each layer
+ for(Int_t i=0;i<AliITSgeomTGeo::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];
+ pflag=1;
+ fPoint3[0] = fPointc[0];
+ fPoint3[1] = fPointc[1];
}
- nn[2] = SearchClusters(2,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],primaryVertex[1],primaryVertex[0],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){
- pflag=1;
- fPoint3[0]=fPointc[0];
- fPoint3[1]=fPointc[1];
+ pflag=1;
+ fPoint3[0]=fPointc[0];
+ fPoint3[1]=fPointc[1];
}
- nn[3] = SearchClusters(3,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],primaryVertex[1],primaryVertex[0],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],primaryVertex[1],primaryVertex[0],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],primaryVertex[1],primaryVertex[0],pflag,fTable);
+ nn[5] = SearchClusters(5,fPhiWin[nloop],fLambdaWin[nloop],trs,primaryVertex[2],pflag);
Int_t layOK=0;
Int_t numberofpoints;
- if(sixpoints) numberofpoints=6; //check of the candidate track
+ 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;
+ for(Int_t nnp=0;nnp<AliITSgeomTGeo::GetNLayers();nnp++){ //of points) it is written on file
+ if(nn[nnp]!=0) layOK+=1;
}
if(layOK>=numberofpoints){
- AliITStrackV2* tr2 = FitTrack(trs,primaryVertex,errorsprimvert,opt);
- if(tr2==0){
- Int_t nct = trs->GetNumberOfClustersSA();
- while(nct--){
- Int_t index = trs->GetClusterIndexSA(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl->IsUsed()==1) kl->Use();
- }
- continue;
- }
- outrack=tr2;
- out->Fill();
- ntrack++;
- Int_t nct = tr2->GetNumberOfClusters();
-
- while(nct--){
- Int_t index = tr2->GetClusterIndex(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl->IsUsed()==0) kl->Use();
-
- }
- }
- else{
- Int_t nct = trs->GetNumberOfClustersSA();
- while(nct--){
- Int_t index = trs->GetClusterIndexSA(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl->IsUsed()==1) kl->Use();
- }
- }
- delete trs;
- }//end loop on clusters of layer1
+ AliITStrackV2* tr2 = FitTrack(trs,primaryVertex);
+
+ if(tr2==0) continue;
- }//end loop2
+ AliESDtrack outtrack;
+ outtrack.UpdateTrackParams(tr2,AliESDtrack::kITSin);
+ event->AddTrack(&outtrack);
+ ntrack++;
+ }
+
- //if 5/6 points are required, second loop starting
- //from second layer, to find tracks with point of
- //layer 1 missing
-
- if(!sixpoints){
- // 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;
- Double_t x,y,z;
- Int_t module = cl->GetDetectorIndex()+firstmod[1];
- GetClusterGCoordinates(cl,module,x,y,z);
- fPhic = TMath::ATan2(y,x);
- fLambdac = TMath::ATan2(z-primaryVertex[2],TMath::Sqrt((x-primaryVertex[0])*(x-primaryVertex[0])+(y-primaryVertex[1])*(y-primaryVertex[1])));
-
- fPhiEstimate = fPhic;
- AliITStrackSA* trs = new AliITStrackSA();
-
- fPoint1[0]=primaryVertex[0];
- fPoint1[1]=primaryVertex[1];
- fPoint2[0]=x;
- fPoint2[1]=y;
+ delete trs;
+ delete[] nn;
+
+ }//end loop on clusters of layer1
+
+ //end loop2
+ }
- 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],primaryVertex[1],primaryVertex[0],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,opt);
- if(tr2==0){
- Int_t nct = trs->GetNumberOfClustersSA();
- while(nct--){
- Int_t index = trs->GetClusterIndexSA(nct);
- AliITSclusterV2* kl = (AliITSclusterV2*)GetCluster(index);
- if(kl->IsUsed()==1) kl->Use();
- }
- 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;
- if(kl->IsUsed()==0) kl->Use();
- }
- }
- 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->IsUsed()==1) kl->Use();
- }
- }
- delete trs;
+ //if 5/6 points are required, second loop starting
+ //from second layer (SPD2), to find tracks with point of
+ //layer 1 missing
+ if(!fSixPoints) {
+ //printf("looking from SPD2\n");
+ // counter for clusters on each layer
+ Int_t * nn = new Int_t[AliITSgeomTGeo::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<AliITSgeomTGeo::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<AliITSgeomTGeo::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"
+ } //end opt="5/6"
+
+
+
+ // search for tracks starting from SPD2, SDD1, SDD2, SSD2
+ // for cosmics (A. Dainese 31.07.07)
+ if(fOuterStartLayer>0) {
+ for(Int_t innLay=1; innLay<=fOuterStartLayer; innLay++) {
+ printf("Searching from layer %d outward\n",innLay);
+ // counter for clusters on each layer
+ Int_t * nn = new Int_t[AliITSgeomTGeo::GetNLayers()-innLay];
+ for(Int_t nloop=0;nloop<fNloop;nloop++){
+ Int_t nclInnLay=fCluLayer[innLay]->GetEntries();
+ while(nclInnLay--){ //loop starting from layer innLay
+ ResetForFinding();
+ Int_t pflag=0;
+ AliITSRecPoint* cl = (AliITSRecPoint*)fCluLayer[innLay]->At(nclInnLay);
+
+ if(!cl) continue;
+ AliITSclusterTable* arr = (AliITSclusterTable*)GetClusterCoord(innLay,nclInnLay);
+ 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();
+
+ Int_t kk;
+ for(kk=0;kk<AliITSgeomTGeo::GetNLayers()-innLay;kk++) nn[kk] = 0;
+
+ kk=0;
+ nn[kk] = SearchClusters(innLay,fPhiWin[nloop],fLambdaWin[nloop],
+ trs,primaryVertex[2],pflag);
+ for(Int_t nextLay=innLay+1; nextLay<AliITSgeomTGeo::GetNLayers(); nextLay++) {
+ kk++;
+ nn[kk] = SearchClusters(nextLay,fPhiWin[nloop],fLambdaWin[nloop],
+ trs,primaryVertex[2],pflag);
+ if(nn[kk]!=0){
+ pflag=1;
+ if(kk==1) {
+ fPoint3[0]=fPointc[0];
+ fPoint3[1]=fPointc[1];
+ } else {
+ UpdatePoints();
+ }
+ }
+ }
+
+ Int_t fl=0;
+ for(Int_t nnp=0;nnp<AliITSgeomTGeo::GetNLayers()-innLay;nnp++){
+ if(nn[nnp]!=0) fl+=1;
+ }
+ if(fl>=AliITSgeomTGeo::GetNLayers()-innLay){
+ AliITStrackV2* tr2 = FitShortTrack(trs,primaryVertex,innLay);
+ if(tr2==0){
+ continue;
+ }
+
+ AliESDtrack outtrack;
+ outtrack.UpdateTrackParams(tr2,AliESDtrack::kITSin);
+ event->AddTrack(&outtrack);
+ ntrack++;
+
+ }
+
+ delete trs;
+ }//end loop on clusters of innLay
+ } //end loop on window sizes
+
+ delete [] nn;
+ } //end loop on innLay
+ } //end if(fOuterStartLayer>0)
+
delete [] firstmod;
+ Info("FindTracks","Number of found tracks: %d",event->GetNumberOfTracks());
+ return 0;
- UnloadClusters();
}
-//_______________________________________________________________________
-void AliITStrackerSA::UseFoundTracksV2(Int_t evnum,TTree* treev2, TTree* clustertree){
- // Marks as used clusters belonging to tracks found with V2 TPC+ITS tracking
- if(!fTable){
- fTable = new AliITSclusterTable(fGeom,this);
- fTable->FillArray(clustertree,evnum);
- }
- LoadClusters(clustertree);
- SetFlagLoadedClusters(1);
-
- 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;
+
+
+
-}
//________________________________________________________________________
-AliITStrackV2* AliITStrackerSA::FitTrack(AliITStrackSA* tr,Double_t *primaryVertex,Double_t *errorsprimvert,char *opt){
+AliITStrackV2* AliITStrackerSA::FitTrack(AliITStrackSA* tr,Double_t *primaryVertex){
//fit of the found track
-//options
- TString choice(opt);
- Bool_t sixpoints= choice.Contains("6/6");
- 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);
+ Int_t * firstmod = new Int_t[AliITSgeomTGeo::GetNLayers()];
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
+ firstmod[i]=AliITSgeomTGeo::GetModuleIndex(i+1,1,1);
}
- TObjArray* listoftracks=new TObjArray(0,0);
- AliITStrackV2* otrack2;
+
Int_t nclusters = tr->GetNumberOfClustersSA();
- TObjArray** listlayer = new TObjArray*[fGeom->GetNlayers()];
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ TObjArray** listlayer = new TObjArray*[AliITSgeomTGeo::GetNLayers()];
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
listlayer[i] = new TObjArray(0,0);
}
TArrayI clind4(20);
TArrayI clind5(20);
- Int_t * nnn = new Int_t[fGeom->GetNlayers()];
- for(Int_t i=0;i<fGeom->GetNlayers();i++)nnn[i]=0;
+ TArrayI mark0(20);
+ TArrayI mark1(20);
+ TArrayI mark2(20);
+ TArrayI mark3(20);
+ TArrayI mark4(20);
+ TArrayI mark5(20);
+
+
+ Int_t * nnn = new Int_t[AliITSgeomTGeo::GetNLayers()];
+ Int_t * kkk = new Int_t[AliITSgeomTGeo::GetNLayers()];
+ for(Int_t i=0;i<AliITSgeomTGeo::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);
- if(cl->IsUsed()==1) cl->Use();
+ 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]++;}
}
delete [] nnn;
+ 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]++;}
+
+ }
+ }
+
+ delete [] kkk;
+
- Int_t * end = new Int_t[fGeom->GetNlayers()];
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ Int_t * end = new Int_t[AliITSgeomTGeo::GetNLayers()];
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
if(listlayer[i]->GetEntries()==0) end[i]=1;
else end[i]=listlayer[i]->GetEntries();
}
- 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]);
+ 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;
- AliITSclusterV2* p1=0;
- AliITSclusterV2* p2=0;
-
- for(Int_t l2=0;l2<end[1];l2++){//loop on layer 2
- AliITSclusterV2* cl1 = (AliITSclusterV2*)listlayer[1]->At(l2);
+ 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
- AliITSclusterV2* cl2 = (AliITSclusterV2*)listlayer[2]->At(l3);
-
- if(cl0==0 && cl1!=0) {
- p2 = cl2;
- p1=cl1;
-
- }
- if(cl0!=0 && cl1==0){
- p1=cl0;
- p2=cl2;
- }
- if(cl0!=0 && cl1!=0){
- p1=cl0;
- p2=cl1;
- }
- Int_t module1 = p1->GetDetectorIndex()+firstmod[0];
- Int_t module2 = p2->GetDetectorIndex()+firstmod[1];
- GetClusterGCoordinates(p1,module1,x1,y1,z1);
- GetClusterGCoordinates(p2,module2,x2,y2,z2);
- GetClusterGErrors(p1,module1,sx1,sy1,sz1);
- GetClusterGErrors(p2,module2,sx2,sy2,sz2);
- Double_t phi1=TMath::ATan2(y1,x1);
- 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);
+ AliITSRecPoint* cl2 = (AliITSRecPoint*)listlayer[2]->At(l3);
+
+ if(cl0==0 && cl1!=0) {
+ p1=cl1;
+ p2=cl2;
+ index1=clind1[l2];mrk1=mark1[l2];
+ index2=clind2[l3];mrk2=mark2[l3];
+ lay1=1;
+ lay2=2;
+ module1 = p1->GetDetectorIndex()+firstmod[1];
+ }
+ if(cl0!=0 && cl1==0){
+ p1=cl0;
+ p2=cl2;index2=clind2[l3];mrk2=mark2[l3];
+ lay1=0;
+ lay2=2;
+ module1 = p1->GetDetectorIndex()+firstmod[0];
+ }
+ if(cl0!=0 && cl1!=0){
+ p1=cl0;
+ p2=cl1;
+ lay1=0;
+ lay2=1;
+ module1 = p1->GetDetectorIndex()+firstmod[0];
+ }
- //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* arr1 = (AliITSclusterTable*)GetClusterCoord(lay1,cln1);
+ AliITSclusterTable* arr2 = (AliITSclusterTable*)GetClusterCoord(lay2,cln2);
+ x1 = arr1->GetX();
+ x2 = arr2->GetX();
+ y1 = arr1->GetY();
+ y2 = arr2->GetY();
+ z1 = arr1->GetZ();
+ z2 = arr2->GetZ();
+ sx1 = arr1->GetSx();
+ sx2 = arr2->GetSx();
+ sy1 = arr1->GetSy();
+ sy2 = arr2->GetSy();
+ sz1 = arr1->GetSz();
+ sz2 = arr2->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);
-
- for(Int_t l4=0;l4<end[3];l4++){ //loop on layer 4
- AliITSclusterV2* cl3 = (AliITSclusterV2*)listlayer[3]->At(l4);
- for(Int_t l5=0;l5<end[4];l5++){ //loop on layer 5
- AliITSclusterV2* cl4 = (AliITSclusterV2*)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);
-
- 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()
-
- AliITStrackV2* ot = new AliITStrackV2(*trac);
-
- ot->ResetCovariance();
- ot->ResetClusters();
-
- if(RefitAt(49.,ot,trac)){ //fit from layer 1 to layer 6
-
- otrack2 = new AliITStrackV2(*ot);
- otrack2->ResetCovariance();
- otrack2->ResetClusters();
- //fit from layer 6 to layer 1
- if(RefitAt(3.7,otrack2,ot)) listoftracks->AddLast(otrack2);
-
- }
-
- delete ot;
- delete trac;
- }//end loop layer 6
- }//end loop layer 5
- }//end loop layer 4
-
- for(Int_t i=1;i<3;i++){
- delete recp[i];
- delete errs[i];
- }
+ AliITSgeomTGeo::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(layer,ladder,detector,yclu1,zclu1,phi2,tgl2,cv,1);
+
+ 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()
+
+
+ AliITStrackMI* ot = new AliITStrackSA(*trac);
+
+ ot->ResetCovariance(10.);
+ ot->ResetClusters();
+
+ if(RefitAt(krInsideITSscreen,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(krInsideSPD1,otrack2,ot)) {
+ fListOfTracks->AddLast(otrack2);
+ new (tri[nlist]) AliITStrackSA(*trac);
+ nlist++;
+ } else {
+ delete otrack2;
+ }
+
+ }
+
+ delete ot;
+ delete trac;
+ }//end loop layer 6
+ }//end loop layer 5
+ }//end loop layer 4
}//end loop layer 3
- }//end loop layer 2
- delete recp[0];
- delete errs[0];
- delete[] recp;
- delete[] errs;
+ }//end loop layer 2
}//end loop layer 1
delete [] end;
- Int_t dim=listoftracks->GetEntries();
+
+
+ Int_t dim=fListOfTracks->GetEntries();
if(dim==0){
- delete listoftracks;
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
delete listlayer[i];
}
- delete listlayer;
+ delete [] listlayer;
+ listSA->Delete();
+ delete listSA;
+ delete [] firstmod;
return 0;
}
- AliITStrackV2* otrack =(AliITStrackV2*)FindTrackLowChiSquare(listoftracks,dim);
-
- if(otrack==0) return 0;
- Int_t * indexc = new Int_t[fGeom->GetNlayers()];
- for(Int_t i=0;i<fGeom->GetNlayers();i++) indexc[i]=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<AliITSgeomTGeo::GetNLayers();i++){
+ delete listlayer[i];
+ }
+ delete [] listlayer;
+ listSA->Delete();
+ delete listSA;
+ delete [] firstmod;
+ return 0;
+ }
+ Int_t * indexc = new Int_t[AliITSgeomTGeo::GetNLayers()];
+ 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);
}
- 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]);
+ if(otrack->GetNumberOfClusters()==AliITSgeomTGeo::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)){
+ if(otrack->GetNumberOfClusters()==(AliITSgeomTGeo::GetNLayers()-1)){
labl[0]=-1;
labl[1]=-1;
labl[2]=-1;
}
Int_t numberofpoints;
- if(sixpoints) numberofpoints=6;
+ 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);
+ 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);
otrack->SetLabel(label);
- delete listoftracks;
- for(Int_t i=0;i<fGeom->GetNlayers();i++){
+ //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);
+ RemoveClusterCoord(nlay,index);
+ fCluLayer[nlay]->Compress();
+ }
+ }
+ listSA->Delete();
+ delete listSA;
+
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
delete listlayer[i];
}
- delete listlayer;
+ delete [] listlayer;
delete [] firstmod;
return otrack;
}
-//________________________________________________________________
-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];
- fPoint3[1]=fPointc[1];
+AliITStrackV2* AliITStrackerSA::FitShortTrack(AliITStrackSA* tr,Double_t *primaryVertex,Int_t innLay){
+ //fit of the found track (short tracks, <6 points, for cosmics). A.Dainese 31.07.07
-}
+ Int_t * firstmod = new Int_t[AliITSgeomTGeo::GetNLayers()];
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
+ firstmod[i]=AliITSgeomTGeo::GetModuleIndex(i+1,1,1);
+ }
-//_________________________________________________________________
+ Int_t nclusters = tr->GetNumberOfClustersSA();
+ TObjArray** listlayer = new TObjArray*[AliITSgeomTGeo::GetNLayers()];
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
+ listlayer[i] = new TObjArray(0,0);
+ }
-Int_t AliITStrackerSA::SearchClusters(Int_t layer,Double_t phiwindow,Double_t lambdawindow, AliITStrackSA* trs,Double_t zvertex,Double_t yvertex,Double_t xvertex,Int_t pflag,AliITSclusterTable* table){
- //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);
+ 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[AliITSgeomTGeo::GetNLayers()];
+ Int_t * kkk = new Int_t[AliITSgeomTGeo::GetNLayers()];
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++) {nnn[i]=0;kkk[i]=0;}
+
+ 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]++;}
}
- 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) return 0;
- Double_t fi1 =TMath::ATan2(cy1,cx1);
- Double_t fi2 =TMath::ATan2(cy2,cx2);
- fPhiEstimate = ChoosePoint(fi1,fi2,fPhic);
+ delete [] nnn;
+
+ 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]++;}
+
+ }
}
- 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)+firstmod[layer];
+ delete [] kkk;
+
- Int_t nm[8]={0,0,0,0,0,0,0,0};
- nm[0] = lay.FindDetectorIndex(fi+phiwindow,zed)+firstmod[layer];
- nm[1] = lay.FindDetectorIndex(fi-phiwindow,zed)+firstmod[layer];
- nm[2] = lay.FindDetectorIndex(fi,zed1)+firstmod[layer];
- nm[3] = lay.FindDetectorIndex(fi,zed2)+firstmod[layer];
- nm[4] = lay.FindDetectorIndex(fi+phiwindow,zed1)+firstmod[layer];
- nm[5] = lay.FindDetectorIndex(fi-phiwindow,zed1)+firstmod[layer];
- nm[6] = lay.FindDetectorIndex(fi+phiwindow,zed2)+firstmod[layer];
- nm[7] = lay.FindDetectorIndex(fi-phiwindow,zed2)+firstmod[layer];
+ Int_t * end = new Int_t[AliITSgeomTGeo::GetNLayers()];
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
+ if(listlayer[i]->GetEntries()==0) end[i]=1;
+ 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
+ AliITSRecPoint* cl0 = (AliITSRecPoint*)listlayer[0]->At(l1);
+ for(Int_t l2=0;l2<end[1];l2++){ //loop on layer 2
+ AliITSRecPoint* cl1 = (AliITSRecPoint*)listlayer[1]->At(l2);
+ for(Int_t l3=0;l3<end[2];l3++){ //loop on layer 3
+ AliITSRecPoint* cl2 = (AliITSRecPoint*)listlayer[2]->At(l3);
+ 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);
+
+
+ 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;
+ if(innLay==1) {
+ p1=cl1;
+ p2=cl2;
+ index1=clind1[l2];mrk1=mark1[l2];
+ index2=clind2[l3];mrk2=mark2[l3];
+ } else if(innLay==2) {
+ p1=cl2;
+ p2=cl3;
+ index1=clind2[l3];mrk1=mark2[l3];
+ index2=clind3[l4];mrk2=mark3[l4];
+ } else if(innLay==3) {
+ p1=cl3;
+ p2=cl4;
+ index1=clind3[l4];mrk1=mark3[l4];
+ index2=clind4[l5];mrk2=mark4[l5];
+ } else if(innLay==4) {
+ p1=cl4;
+ p2=cl5;
+ index1=clind4[l5];mrk1=mark4[l5];
+ index2=clind5[l6];mrk2=mark5[l6];
+ }
+ Int_t lay1=innLay;
+ Int_t lay2=innLay+1;
+ Int_t module1 = p1->GetDetectorIndex()+firstmod[innLay];
+
+ Int_t cln1=mrk1;
+ Int_t cln2=mrk2;
+ AliITSclusterTable* arr1 = (AliITSclusterTable*)GetClusterCoord(lay1,cln1);
+ AliITSclusterTable* arr2 = (AliITSclusterTable*)GetClusterCoord(lay2,cln2);
+ x1 = arr1->GetX();
+ x2 = arr2->GetX();
+ y1 = arr1->GetY();
+ y2 = arr2->GetY();
+ z1 = arr1->GetZ();
+ z2 = arr2->GetZ();
+ sx1 = arr1->GetSx();
+ sx2 = arr2->GetSx();
+ sy1 = arr1->GetSy();
+ sy2 = arr2->GetSy();
+ sz1 = arr1->GetSz();
+ sz2 = arr2->GetSz();
+
+ Int_t layer,ladder,detector;
+ AliITSgeomTGeo::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));
+ //printf("phi2: %f tgl2: %f\n",phi2,tgl2);
+ AliITStrackSA* trac = new AliITStrackSA(layer,ladder,detector,yclu1,zclu1,phi2,tgl2,cv,1);
+
+ //Float_t clxyz[3];
+ if(cl5!=0) {
+ trac->AddClusterV2(5,(clind5[l6] & 0x0fffffff)>>0);
+ trac->AddClusterMark(5,mark5[l6]);
+ //cl5->GetGlobalXYZ(clxyz);printf("gcl %f %f %f\n",clxyz[0],clxyz[1],clxyz[2]);
+ }
+ if(cl4!=0){
+ trac->AddClusterV2(4,(clind4[l5] & 0x0fffffff)>>0);
+ trac->AddClusterMark(4,mark4[l5]);
+ //cl4->GetGlobalXYZ(clxyz);printf("gcl %f %f %f\n",clxyz[0],clxyz[1],clxyz[2]);
+ }
+ if(cl3!=0){
+ trac->AddClusterV2(3,(clind3[l4] & 0x0fffffff)>>0);
+ trac->AddClusterMark(3,mark3[l4]);
+ //cl3->GetGlobalXYZ(clxyz);printf("gcl %f %f %f\n",clxyz[0],clxyz[1],clxyz[2]);
+ }
+ if(cl2!=0){
+ trac->AddClusterV2(2,(clind2[l3] & 0x0fffffff)>>0);
+ trac->AddClusterMark(2,mark2[l3]);
+ //cl2->GetGlobalXYZ(clxyz);printf("gcl %f %f %f\n",clxyz[0],clxyz[1],clxyz[2]);
+ }
+ if(cl1!=0){
+ trac->AddClusterV2(1,(clind1[l2] & 0x0fffffff)>>0);
+ trac->AddClusterMark(1,mark1[l2]);
+ //cl1->GetGlobalXYZ(clxyz);printf("gcl %f %f %f\n",clxyz[0],clxyz[1],clxyz[2]);
+ }
+ if(cl0!=0){
+ trac->AddClusterV2(0,(clind0[l1] & 0x0fffffff)>>0);
+ trac->AddClusterMark(0,mark0[l1]);
+ //cl0->GetGlobalXYZ(clxyz);printf("gcl %f %f %f\n",clxyz[0],clxyz[1],clxyz[2]);
+ }
+
+
+ //fit with Kalman filter using AliITStrackerMI::RefitAt()
+ AliITStrackMI* ot = new AliITStrackSA(*trac);
+
+ ot->ResetCovariance(10.);
+ ot->ResetClusters();
+
+ //printf("%d \n",trac->GetNumberOfClusters());for(Int_t ijk=0;ijk<trac->GetNumberOfClusters();ijk++) printf(" %d",trac->GetClusterIndex(ijk)); printf("\n");
+ if(RefitAt(krInsideITSscreen,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(krInsideSPD1,otrack2,ot)) {
+ fListOfTracks->AddLast(otrack2);
+ new (tri[nlist]) AliITStrackSA(*trac);
+ nlist++;
+ } else {
+ delete otrack2;
+ }
+
+ }
+
+ delete ot;
+ delete trac;
+ }//end loop layer 6
+ }//end loop layer 5
+ }//end loop layer 4
+ }//end loop layer 3
+ }//end loop layer 2
+ }//end loop layer 1
+
+ delete [] end;
- if(nmod<0) return 0;
- Int_t nn=0;
- TArrayI* array =(TArrayI*)table->GetListOfClusters(nmod);
- TArrayI* list = new TArrayI(array->GetSize());
- for(Int_t i=0;i<array->GetSize();i++){
- Int_t in=(Int_t)array->At(i);
- list->AddAt(in,nn);
- nn++;
+
+ Int_t dim=fListOfTracks->GetEntries();
+ if(dim==0){
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
+ delete listlayer[i];
+ }
+ delete [] listlayer;
+ listSA->Delete();
+ delete listSA;
+ delete [] firstmod;
+ return 0;
}
-
- for(Int_t ii=0;ii<8;ii++){
- if(nm[ii]!=nmod && nm[ii]>=0){
- TArrayI* ar =(TArrayI*)table->GetListOfClusters(nm[ii]);
- list->Set(list->GetSize()+ar->GetSize());
- for(Int_t j=0;j<ar->GetSize();j++){
- Int_t in=(Int_t)ar->At(j);
- list->AddAt(in,nn);
- nn++;
- }
+
+ 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<AliITSgeomTGeo::GetNLayers();i++){
+ delete listlayer[i];
}
+ delete [] listlayer;
+ listSA->Delete();
+ delete listSA;
+ delete [] firstmod;
+ return 0;
}
- for(Int_t i=0;i<list->GetSize();i++){
- Int_t index = (Int_t)list->At(i);
- AliITSclusterV2* cllay = lay.GetCluster(index);
- if(cllay==0) continue;
- if(cllay->IsUsed()==1) continue;
-
- Double_t x,y,z;
- Int_t modlay = cllay->GetDetectorIndex()+firstmod[layer];
- GetClusterGCoordinates(cllay,modlay,x,y,z);
- Double_t phi = TMath::ATan2(y,x);
- Double_t lambda=TMath::ATan2(z-zvertex,TMath::Sqrt((x-xvertex)*(x-xvertex)+(y-yvertex)*(y-yvertex)));
-
-
- if(TMath::Abs(fLambdac-lambda)<lambdawindow &&
- TMath::Abs(fPhiEstimate-phi)<phiwindow){
- nc+=1;
- fLambdac = lambda;
- if(trs->GetNumberOfClustersSA()==20){
- delete list;
- return 0;
- }
- trs->AddClusterSA(layer,index);
- cllay->Use();
- fPhiEstimate=phi;
- fPointc[0]=x;fPointc[1]=y;
+ Int_t * indexc = new Int_t[AliITSgeomTGeo::GetNLayers()];
+ 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);
+ }
+ 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;
}
+ }
+ delete [] indexc;
+ Int_t numberofpoints=AliITSgeomTGeo::GetNLayers()-innLay;
+ CookLabel(otrack,0.); //MI change - to see fake ratio
+
+ 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<numberofpoints;i++)
+ if(labl[i][0]==label || labl[i][1]==label || labl[i][2]==label) lflag++;
+
+ if(lflag<numberofpoints) label = -label;
+ otrack->SetLabel(label);
+ //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);
+ RemoveClusterCoord(nlay,index);
+ fCluLayer[nlay]->Compress();
+ }
+ }
+ listSA->Delete();
+ delete listSA;
+
+ for(Int_t i=0;i<AliITSgeomTGeo::GetNLayers();i++){
+ delete listlayer[i];
}
- delete list;
+ delete [] listlayer;
delete [] firstmod;
- return nc;
+ return otrack;
}
-//__________________________________________________________________
-void AliITStrackerSA::GetClusterGCoordinates(AliITSclusterV2* cluster,Int_t module,Double_t& x, Double_t& y, Double_t& z){
-
- //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);
- 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 phi=TMath::Pi()/2+alpha;
- if (lay==1) phi+=TMath::Pi();
-
- Double_t cp=TMath::Cos(phi), sp=TMath::Sin(phi);
- Double_t r=tx*cp+ty*sp;
- x= r*cp - cluster->GetY()*sp;
- y= r*sp + cluster->GetY()*cp;
- z=cluster->GetZ();
+//_______________________________________________________
+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];
+ 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);
+ if (FindIntersection(fCoef1,fCoef2,fCoef3,-r*r,cx1,cy1,cx2,cy2)==0)
+ return 0;
+ 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);
+ }
-
+
+ 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;
+
+ 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();
+ }
+ return nc;
}
-//__________________________________________________________________
-void AliITStrackerSA::GetClusterGErrors(AliITSclusterV2* cluster,Int_t module,Double_t& sigmax, Double_t& sigmay, Double_t& sigmaz){
-
- //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();
+//________________________________________________________________
+void AliITStrackerSA::UpdatePoints(){
+ //update of points for the estimation of the curvature
- Double_t cp=TMath::Cos(phi), sp=TMath::Sin(phi);
+ fPoint2[0]=fPoint3[0];
+ fPoint2[1]=fPoint3[1];
+ fPoint3[0]=fPointc[0];
+ fPoint3[1]=fPointc[1];
-
- sigmax = TMath::Sqrt(sp*sp*cluster->GetSigmaY2());
- sigmay = TMath::Sqrt(cp*cp*cluster->GetSigmaY2());
- sigmaz = TMath::Sqrt(cluster->GetSigmaZ2());
+
}
//___________________________________________________________________
//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 {
- // returns track with lowes chi square
+Int_t AliITStrackerSA::FindTrackLowChiSquare(TObjArray* tracklist, Int_t dim) const {
+ // returns track with lowers 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;
Double_t * chi2 = new Double_t[dim];
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;
+ value=chi2[w];
+ chi2[w]=chi2[j];
+ chi2[j]=value;
+ lp=index[w];
+ index[w]=index[j];
+ index[j]=lp;
}
}
w++;
}
-
- AliITStrackV2* trk = (AliITStrackV2*)tracklist->At(index[dim-1]);
+ Int_t tmp = index[dim-1];
delete [] chi2;
delete [] index;
- return trk;
-
+ return tmp;
}
//__________________________________________________________
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];
}
//_____________________________________________________________________________
}
}
else { // default values
- Double_t phid[46] = {0.001,0.0015,0.002,0.0023,0.0025,0.0027,0.003,
- 0.0033,0.0035,0.0037,0.004,0.0043,0.0045,0.0047,
- 0.005,0.0053,0.0055,
- 0.006,0.0063,0.0065,0.007,0.0073,0.0075,0.0077,
- 0.008,0.0083,0.0085,0.0087,0.009,0.0095,0.0097,
- 0.01,0.0105,0.011,0.0115,0.012,0.0125,0.013,0.0135,
- 0.014,0.0145,0.015,0.0155,0.016,0.0165,0.017};
- Double_t lambdad[46] = {0.001,0.0015,0.002,0.0023,0.0025,0.0027,0.003,
- 0.0033,0.0035,0.0037,0.004,0.0043,0.0045,0.0047,
- 0.005,0.0053,0.0055,
- 0.006,0.0063,0.0065,0.007,0.0073,0.0075,0.0077,
- 0.008,0.0083,0.0085,0.0087,0.009,0.0095,0.0097,
- 0.01,0.015,0.011,0.0115,0.012,0.0125,0.013,0.0135,
- 0.014,0.0145,0.015,0.0155,0.016,0.016,0.016};
- if(fNloop!=46){
- fNloop = 46;
- Warning("SetWindowSizes","Number of loop forced to the default value %d",fNloop);
+
+ Double_t phid[33] = {0.002,0.003,0.004,0.0045,0.0047,
+ 0.005,0.0053,0.0055,
+ 0.006,0.0063,0.0065,0.007,0.0073,0.0075,0.0077,
+ 0.008,0.0083,0.0085,0.0087,0.009,0.0095,0.0097,
+ 0.01,0.0105,0.011,0.0115,0.012,0.0125,0.013,0.0135,0.0140,0.0145};
+ Double_t lambdad[33] = {0.003,0.004,0.005,0.005,0.005,
+ 0.005,0.005,0.006,
+ 0.006,0.006,0.006,0.007,0.007,0.007,0.007,
+ 0.007,0.007,0.007,0.007,0.007,0.007,0.007,
+ 0.008,0.008,0.008,0.008,0.008,0.008,0.008,0.008,0.008,0.008};
+
+ if(fNloop!=33){
+ fNloop = 33;
}
-
+
+
fPhiWin = new Double_t[fNloop];
fLambdaWin = new Double_t[fNloop];
}
}
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+//_______________________________________________________________________
+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);
+ 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;
+
+ xyz= r*cp - cl->GetY()*sp;
+ y= r*sp + cl->GetY()*cp;
+ z=cl->GetZ();
+*/
+ 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,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;
+ 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