--- /dev/null
+// **************************************************************************
+// This file is property of and copyright by the ALICE HLT Project *
+// ALICE Experiment at CERN, All rights reserved. *
+// *
+// Primary Authors: Sergey Gorbunov <sergey.gorbunov@kip.uni-heidelberg.de> *
+// for The ALICE HLT Project. *
+// *
+// Permission to use, copy, modify and distribute this software and its *
+// documentation strictly for non-commercial purposes is hereby granted *
+// without fee, provided that the above copyright notice appears in all *
+// copies and that both the copyright notice and this permission notice *
+// appear in the supporting documentation. The authors make no claims *
+// about the suitability of this software for any purpose. It is *
+// provided "as is" without express or implied warranty. *
+// *
+//***************************************************************************
+
+
+#include "AliHLTITSDetector.h"
+
+#include "AliITSgeomTGeo.h"
+#include "AliITSCalibration.h"
+#include "AliITSsegmentation.h"
+#include "AliITSDetTypeRec.h"
+
+//------------------------------------------------------------------------
+AliHLTITSDetector::AliHLTITSDetector(const AliHLTITSDetector& det):
+fR(det.fR),
+fRmisal(det.fRmisal),
+fPhi(det.fPhi),
+fSinPhi(det.fSinPhi),
+fCosPhi(det.fCosPhi),
+fYmin(det.fYmin),
+fYmax(det.fYmax),
+fZmin(det.fZmin),
+fZmax(det.fZmax),
+fIsBad(det.fIsBad),
+fNChips(det.fNChips),
+fChipIsBad(det.fChipIsBad)
+{
+ //Copy constructor
+}
+//------------------------------------------------------------------------
+void AliHLTITSDetector::ReadBadDetectorAndChips(Int_t ilayer,Int_t idet,
+ const AliITSDetTypeRec *detTypeRec)
+{
+ //--------------------------------------------------------------------
+ // Read bad detectors and chips from calibration objects in AliITSDetTypeRec
+ //--------------------------------------------------------------------
+
+ // In AliITSDetTypeRec, detector numbers go from 0 to 2197
+ // while in the tracker they start from 0 for each layer
+ for(Int_t il=0; il<ilayer; il++)
+ idet += AliITSgeomTGeo::GetNLadders(il+1)*AliITSgeomTGeo::GetNDetectors(il+1);
+
+ Int_t detType;
+ if (ilayer==0 || ilayer==1) { // ---------- SPD
+ detType = 0;
+ } else if (ilayer==2 || ilayer==3) { // ---------- SDD
+ detType = 1;
+ } else if (ilayer==4 || ilayer==5) { // ---------- SSD
+ detType = 2;
+ } else {
+ printf("AliITStrackerHLT::AliHLTITSDetector::InitBadFromOCDB: Wrong layer number %d\n",ilayer);
+ return;
+ }
+
+ // Get calibration from AliITSDetTypeRec
+ AliITSCalibration *calib = (AliITSCalibration*)detTypeRec->GetCalibrationModel(idet);
+ calib->SetModuleIndex(idet);
+ AliITSCalibration *calibSPDdead = 0;
+ if(detType==0) calibSPDdead = (AliITSCalibration*)detTypeRec->GetSPDDeadModel(idet); // TEMPORARY
+ if (calib->IsBad() ||
+ (detType==0 && calibSPDdead->IsBad())) // TEMPORARY
+ {
+ SetBad();
+ // printf("lay %d bad %d\n",ilayer,idet);
+ }
+
+ // Get segmentation from AliITSDetTypeRec
+ AliITSsegmentation *segm = (AliITSsegmentation*)detTypeRec->GetSegmentationModel(detType);
+
+ // Read info about bad chips
+ fNChips = segm->GetMaximumChipIndex()+1;
+ //printf("ilayer %d detType %d idet %d fNChips %d %d GetNumberOfChips %d\n",ilayer,detType,idet,fNChips,segm->GetMaximumChipIndex(),segm->GetNumberOfChips());
+ if(fChipIsBad) { delete [] fChipIsBad; fChipIsBad=NULL; }
+ fChipIsBad = new Bool_t[fNChips];
+ for (Int_t iCh=0;iCh<fNChips;iCh++) {
+ fChipIsBad[iCh] = calib->IsChipBad(iCh);
+ if (detType==0 && calibSPDdead->IsChipBad(iCh)) fChipIsBad[iCh] = kTRUE; // TEMPORARY
+ //if(fChipIsBad[iCh]) {printf("lay %d det %d bad chip %d\n",ilayer,idet,iCh);}
+ }
+
+ return;
+}
+
+
--- /dev/null
+// ************************************************************************
+// This file is property of and copyright by the ALICE HLT Project *
+// ALICE Experiment at CERN, All rights reserved. *
+// See cxx source for full Copyright notice *
+// *
+//*************************************************************************
+
+#ifndef ALIHLTITSDETECTOR_H
+#define ALIHLTITSDETECTOR_H
+
+#include "AliITSRecPoint.h"
+#include "TMath.h"
+
+class AliITSDetTypeRec;
+
+/**
+ * @class AliHLTITSDetector
+ *
+ * The AliHLTTPCCAHit class is the internal representation
+ * of the TPC clusters for the AliHLTTPCCATracker algorithm.
+ *
+ */
+class AliHLTITSDetector
+{
+ public:
+ AliHLTITSDetector():fR(0),fRmisal(0),fPhi(0),fSinPhi(0),fCosPhi(0),fYmin(0),fYmax(0),fZmin(0),fZmax(0),fIsBad(kFALSE),fNChips(0),fChipIsBad(0) {}
+ AliHLTITSDetector(Double_t r,Double_t phi):fR(r),fRmisal(r),fPhi(phi),fSinPhi(TMath::Sin(phi)),fCosPhi(TMath::Cos(phi)),fYmin(10000),fYmax(-1000),fZmin(10000),fZmax(-1000),fIsBad(kFALSE),fNChips(0),fChipIsBad(0) {}
+ ~AliHLTITSDetector() {if(fChipIsBad) delete [] fChipIsBad;}
+ inline void GetGlobalXYZ( const AliITSRecPoint *cl, Double_t xyz[3]) const;
+ Double_t GetR() const {return fR;}
+ Double_t GetRmisal() const {return fRmisal;}
+ Double_t GetPhi() const {return fPhi;}
+ Double_t GetYmin() const {return fYmin;}
+ Double_t GetYmax() const {return fYmax;}
+ Double_t GetZmin() const {return fZmin;}
+ Double_t GetZmax() const {return fZmax;}
+ Bool_t IsBad() const {return fIsBad;}
+ Int_t GetNChips() const {return fNChips;}
+ Bool_t IsChipBad(Int_t iChip) const {return (fChipIsBad ? fChipIsBad[iChip] : kFALSE);}
+ void SetRmisal(Double_t rmisal) {fRmisal = rmisal;}
+ void SetYmin(Double_t min) {fYmin = min;}
+ void SetYmax(Double_t max) {fYmax = max;}
+ void SetZmin(Double_t min) {fZmin = min;}
+ void SetZmax(Double_t max) {fZmax = max;}
+ void SetBad() {fIsBad = kTRUE;}
+ void ReadBadDetectorAndChips(Int_t ilayer,Int_t idet,const AliITSDetTypeRec *detTypeRec);
+
+ private:
+
+ AliHLTITSDetector(const AliHLTITSDetector& det);
+ AliHLTITSDetector & operator=(const AliHLTITSDetector& det){
+ this->~AliHLTITSDetector();new(this) AliHLTITSDetector(det);
+ return *this;}
+ Double_t fR; // polar coordinates: r
+ Double_t fRmisal; // polar coordinates: r, with misalignment
+ Double_t fPhi; // polar coordinates: phi
+ Double_t fSinPhi; // sin of phi;
+ Double_t fCosPhi; // cos of phi
+ Double_t fYmin; // local y minimal
+ Double_t fYmax; // local max y
+ Double_t fZmin; // local z min
+ Double_t fZmax; // local z max
+ Bool_t fIsBad; // is detector dead or noisy?
+ Int_t fNChips; // number of chips
+ Bool_t *fChipIsBad; //[fNChips] is chip dead or noisy?
+};
+
+inline void AliHLTITSDetector::GetGlobalXYZ(const AliITSRecPoint *cl, Double_t xyz[3]) const
+{
+ //
+ // get cluster coordinates in global cooordinate
+ //
+ xyz[2] = cl->GetZ();
+ xyz[0] = fR*fCosPhi - cl->GetY()*fSinPhi;
+ xyz[1] = fR*fSinPhi + cl->GetY()*fCosPhi;
+}
+
+#endif
--- /dev/null
+// **************************************************************************
+// This file is property of and copyright by the ALICE HLT Project *
+// ALICE Experiment at CERN, All rights reserved. *
+// *
+// Primary Authors: Sergey Gorbunov <sergey.gorbunov@kip.uni-heidelberg.de> *
+// for The ALICE HLT Project. *
+// *
+// Permission to use, copy, modify and distribute this software and its *
+// documentation strictly for non-commercial purposes is hereby granted *
+// without fee, provided that the above copyright notice appears in all *
+// copies and that both the copyright notice and this permission notice *
+// appear in the supporting documentation. The authors make no claims *
+// about the suitability of this software for any purpose. It is *
+// provided "as is" without express or implied warranty. *
+// *
+//***************************************************************************
+
+
+#include "AliHLTITSLayer.h"
+
+//------------------------------------------------------------------------
+AliHLTITSLayer::AliHLTITSLayer():
+fR(0),
+fPhiOffset(0),
+fNladders(0),
+fZOffset(0),
+fNdetectors(0),
+fDetectors(0),
+fN(0),
+fDy5(0),
+fDy10(0),
+fDy20(0),
+fClustersCs(0),
+fClusterIndexCs(0),
+fYcs(0),
+fZcs(0),
+fNcs(0),
+fCurrentSlice(-1),
+fZmax(0),
+fYmin(0),
+fYmax(0),
+fI(0),
+fImax(0),
+fSkip(0),
+fAccepted(0),
+fRoad(0){
+ //--------------------------------------------------------------------
+ //default AliHLTITSLayer constructor
+ //--------------------------------------------------------------------
+ for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
+ fClusterWeight[i]=0;
+ fClusterTracks[0][i]=-1;
+ fClusterTracks[1][i]=-1;
+ fClusterTracks[2][i]=-1;
+ fClusterTracks[3][i]=-1;
+ }
+}
+//------------------------------------------------------------------------
+AliHLTITSLayer::
+AliHLTITSLayer(Double_t r,Double_t p,Double_t z,Int_t nl,Int_t nd):
+fR(r),
+fPhiOffset(p),
+fNladders(nl),
+fZOffset(z),
+fNdetectors(nd),
+fDetectors(0),
+fN(0),
+fDy5(0),
+fDy10(0),
+fDy20(0),
+fClustersCs(0),
+fClusterIndexCs(0),
+fYcs(0),
+fZcs(0),
+fNcs(0),
+fCurrentSlice(-1),
+fZmax(0),
+fYmin(0),
+fYmax(0),
+fI(0),
+fImax(0),
+fSkip(0),
+fAccepted(0),
+fRoad(0) {
+ //--------------------------------------------------------------------
+ //main AliHLTITSLayer constructor
+ //--------------------------------------------------------------------
+ fDetectors=new AliHLTITSDetector[fNladders*fNdetectors];
+ fRoad=2*fR*TMath::Sqrt(TMath::Pi()/1.);//assuming that there's only one cluster
+}
+//------------------------------------------------------------------------
+AliHLTITSLayer::AliHLTITSLayer(const AliHLTITSLayer& layer):
+fR(layer.fR),
+fPhiOffset(layer.fPhiOffset),
+fNladders(layer.fNladders),
+fZOffset(layer.fZOffset),
+fNdetectors(layer.fNdetectors),
+fDetectors(layer.fDetectors),
+fN(layer.fN),
+fDy5(layer.fDy5),
+fDy10(layer.fDy10),
+fDy20(layer.fDy20),
+fClustersCs(layer.fClustersCs),
+fClusterIndexCs(layer.fClusterIndexCs),
+fYcs(layer.fYcs),
+fZcs(layer.fZcs),
+fNcs(layer.fNcs),
+fCurrentSlice(layer.fCurrentSlice),
+fZmax(layer.fZmax),
+fYmin(layer.fYmin),
+fYmax(layer.fYmax),
+fI(layer.fI),
+fImax(layer.fImax),
+fSkip(layer.fSkip),
+fAccepted(layer.fAccepted),
+fRoad(layer.fRoad){
+ //Copy constructor
+}
+//------------------------------------------------------------------------
+AliHLTITSLayer::~AliHLTITSLayer() {
+ //--------------------------------------------------------------------
+ // AliHLTITSLayer destructor
+ //--------------------------------------------------------------------
+ delete [] fDetectors;
+ for (Int_t i=0; i<fN; i++) delete fClusters[i];
+ for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
+ fClusterWeight[i]=0;
+ fClusterTracks[0][i]=-1;
+ fClusterTracks[1][i]=-1;
+ fClusterTracks[2][i]=-1;
+ fClusterTracks[3][i]=-1;
+ }
+}
+//------------------------------------------------------------------------
+void AliHLTITSLayer::ResetClusters() {
+ //--------------------------------------------------------------------
+ // This function removes loaded clusters
+ //--------------------------------------------------------------------
+ for (Int_t i=0; i<fN; i++) delete fClusters[i];
+ for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++){
+ fClusterWeight[i]=0;
+ fClusterTracks[0][i]=-1;
+ fClusterTracks[1][i]=-1;
+ fClusterTracks[2][i]=-1;
+ fClusterTracks[3][i]=-1;
+ }
+
+ fN=0;
+ fI=0;
+}
+//------------------------------------------------------------------------
+void AliHLTITSLayer::ResetWeights() {
+ //--------------------------------------------------------------------
+ // This function reset weights of the clusters
+ //--------------------------------------------------------------------
+ for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
+ fClusterWeight[i]=0;
+ fClusterTracks[0][i]=-1;
+ fClusterTracks[1][i]=-1;
+ fClusterTracks[2][i]=-1;
+ fClusterTracks[3][i]=-1;
+ }
+ for (Int_t i=0; i<fN;i++) {
+ AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster(i);
+ if (cl&&cl->IsUsed()) cl->Use();
+ }
+
+}
+//------------------------------------------------------------------------
+void AliHLTITSLayer::ResetRoad() {
+ //--------------------------------------------------------------------
+ // This function calculates the road defined by the cluster density
+ //--------------------------------------------------------------------
+ Int_t n=0;
+ for (Int_t i=0; i<fN; i++) {
+ if (TMath::Abs(fClusters[i]->GetZ())<fR) n++;
+ }
+ if (n>1) fRoad=2*fR*TMath::Sqrt(TMath::Pi()/n);
+}
+//------------------------------------------------------------------------
+Int_t AliHLTITSLayer::InsertCluster(AliITSRecPoint *cl) {
+ //--------------------------------------------------------------------
+ //This function adds a cluster to this layer
+ //--------------------------------------------------------------------
+ if (fN==AliITSRecoParam::GetMaxClusterPerLayer()) {
+ ::Error("InsertCluster","Too many clusters !\n");
+ return 1;
+ }
+ fCurrentSlice=-1;
+ fClusters[fN]=cl;
+ fN++;
+ AliHLTITSDetector &det=GetDetector(cl->GetDetectorIndex());
+ if (cl->GetY()<det.GetYmin()) det.SetYmin(cl->GetY());
+ if (cl->GetY()>det.GetYmax()) det.SetYmax(cl->GetY());
+ if (cl->GetZ()<det.GetZmin()) det.SetZmin(cl->GetZ());
+ if (cl->GetZ()>det.GetZmax()) det.SetZmax(cl->GetZ());
+
+ return 0;
+}
+//------------------------------------------------------------------------
+void AliHLTITSLayer::SortClusters()
+{
+ //
+ //sort clusters
+ //
+ AliITSRecPoint **clusters = new AliITSRecPoint*[fN];
+ Float_t *z = new Float_t[fN];
+ Int_t * index = new Int_t[fN];
+ //
+ for (Int_t i=0;i<fN;i++){
+ z[i] = fClusters[i]->GetZ();
+ }
+ TMath::Sort(fN,z,index,kFALSE);
+ for (Int_t i=0;i<fN;i++){
+ clusters[i] = fClusters[index[i]];
+ }
+ //
+ for (Int_t i=0;i<fN;i++){
+ fClusters[i] = clusters[i];
+ fZ[i] = fClusters[i]->GetZ();
+ AliHLTITSDetector &det=GetDetector(fClusters[i]->GetDetectorIndex());
+ Double_t y=fR*det.GetPhi() + fClusters[i]->GetY();
+ if (y>2.*fR*TMath::Pi()) y -= 2.*fR*TMath::Pi();
+ fY[i] = y;
+ }
+ delete[] index;
+ delete[] z;
+ delete[] clusters;
+ //
+
+ fYB[0]=10000000;
+ fYB[1]=-10000000;
+ for (Int_t i=0;i<fN;i++){
+ if (fY[i]<fYB[0]) fYB[0]=fY[i];
+ if (fY[i]>fYB[1]) fYB[1]=fY[i];
+ fClusterIndex[i] = i;
+ }
+ //
+ // fill slices
+ fDy5 = (fYB[1]-fYB[0])/5.;
+ fDy10 = (fYB[1]-fYB[0])/10.;
+ fDy20 = (fYB[1]-fYB[0])/20.;
+ for (Int_t i=0;i<6;i++) fN5[i] =0;
+ for (Int_t i=0;i<11;i++) fN10[i]=0;
+ for (Int_t i=0;i<21;i++) fN20[i]=0;
+ //
+ for (Int_t i=0;i<6;i++) {fBy5[i][0] = fYB[0]+(i-0.75)*fDy5; fBy5[i][1] = fYB[0]+(i+0.75)*fDy5;}
+ for (Int_t i=0;i<11;i++) {fBy10[i][0] = fYB[0]+(i-0.75)*fDy10; fBy10[i][1] = fYB[0]+(i+0.75)*fDy10;}
+ for (Int_t i=0;i<21;i++) {fBy20[i][0] = fYB[0]+(i-0.75)*fDy20; fBy20[i][1] = fYB[0]+(i+0.75)*fDy20;}
+ //
+ //
+ for (Int_t i=0;i<fN;i++)
+ for (Int_t irot=-1;irot<=1;irot++){
+ Float_t curY = fY[i]+irot*TMath::TwoPi()*fR;
+ // slice 5
+ for (Int_t slice=0; slice<6;slice++){
+ if (fBy5[slice][0]<curY && curY<fBy5[slice][1]&&fN5[slice]<AliITSRecoParam::GetMaxClusterPerLayer5()){
+ fClusters5[slice][fN5[slice]] = fClusters[i];
+ fY5[slice][fN5[slice]] = curY;
+ fZ5[slice][fN5[slice]] = fZ[i];
+ fClusterIndex5[slice][fN5[slice]]=i;
+ fN5[slice]++;
+ }
+ }
+ // slice 10
+ for (Int_t slice=0; slice<11;slice++){
+ if (fBy10[slice][0]<curY && curY<fBy10[slice][1]&&fN10[slice]<AliITSRecoParam::GetMaxClusterPerLayer10()){
+ fClusters10[slice][fN10[slice]] = fClusters[i];
+ fY10[slice][fN10[slice]] = curY;
+ fZ10[slice][fN10[slice]] = fZ[i];
+ fClusterIndex10[slice][fN10[slice]]=i;
+ fN10[slice]++;
+ }
+ }
+ // slice 20
+ for (Int_t slice=0; slice<21;slice++){
+ if (fBy20[slice][0]<curY && curY<fBy20[slice][1]&&fN20[slice]<AliITSRecoParam::GetMaxClusterPerLayer20()){
+ fClusters20[slice][fN20[slice]] = fClusters[i];
+ fY20[slice][fN20[slice]] = curY;
+ fZ20[slice][fN20[slice]] = fZ[i];
+ fClusterIndex20[slice][fN20[slice]]=i;
+ fN20[slice]++;
+ }
+ }
+ }
+
+ //
+ // consistency check
+ //
+ for (Int_t i=0;i<fN-1;i++){
+ if (fZ[i]>fZ[i+1]){
+ printf("Bug\n");
+ }
+ }
+ //
+ for (Int_t slice=0;slice<21;slice++)
+ for (Int_t i=0;i<fN20[slice]-1;i++){
+ if (fZ20[slice][i]>fZ20[slice][i+1]){
+ printf("Bug\n");
+ }
+ }
+
+
+}
+//------------------------------------------------------------------------
+Int_t AliHLTITSLayer::FindClusterIndex(Float_t z) const {
+ //--------------------------------------------------------------------
+ // This function returns the index of the nearest cluster
+ //--------------------------------------------------------------------
+ Int_t ncl=0;
+ const Float_t *zcl;
+ if (fCurrentSlice<0) {
+ ncl = fN;
+ zcl = fZ;
+ }
+ else{
+ ncl = fNcs;
+ zcl = fZcs;;
+ }
+
+ if (ncl==0) return 0;
+ Int_t b=0, e=ncl-1, m=(b+e)/2;
+ for (; b<e; m=(b+e)/2) {
+ // if (z > fClusters[m]->GetZ()) b=m+1;
+ if (z > zcl[m]) b=m+1;
+ else e=m;
+ }
+ return m;
+}
+
+//------------------------------------------------------------------------
+void AliHLTITSLayer::
+SelectClusters(Double_t zmin,Double_t zmax,Double_t ymin, Double_t ymax) {
+ //--------------------------------------------------------------------
+ // This function sets the "window"
+ //--------------------------------------------------------------------
+
+ Double_t circle=2*TMath::Pi()*fR;
+ fYmin = ymin; fYmax =ymax;
+ Float_t ymiddle = (fYmin+fYmax)*0.5;
+ if (ymiddle<fYB[0]) {
+ fYmin+=circle; fYmax+=circle; ymiddle+=circle;
+ } else if (ymiddle>fYB[1]) {
+ fYmin-=circle; fYmax-=circle; ymiddle-=circle;
+ }
+
+ //
+ fCurrentSlice =-1;
+ // defualt take all
+ fClustersCs = fClusters;
+ fClusterIndexCs = fClusterIndex;
+ fYcs = fY;
+ fZcs = fZ;
+ fNcs = fN;
+ //
+ //is in 20 slice?
+ if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy20){
+ Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy20);
+ if (slice<0) slice=0;
+ if (slice>20) slice=20;
+ Bool_t isOK = (fYmin>fBy20[slice][0]&&fYmax<fBy20[slice][1]);
+ if (isOK) {
+ fCurrentSlice=slice;
+ fClustersCs = fClusters20[fCurrentSlice];
+ fClusterIndexCs = fClusterIndex20[fCurrentSlice];
+ fYcs = fY20[fCurrentSlice];
+ fZcs = fZ20[fCurrentSlice];
+ fNcs = fN20[fCurrentSlice];
+ }
+ }
+ //
+ //is in 10 slice?
+ if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy10){
+ Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy10);
+ if (slice<0) slice=0;
+ if (slice>10) slice=10;
+ Bool_t isOK = (fYmin>fBy10[slice][0]&&fYmax<fBy10[slice][1]);
+ if (isOK) {
+ fCurrentSlice=slice;
+ fClustersCs = fClusters10[fCurrentSlice];
+ fClusterIndexCs = fClusterIndex10[fCurrentSlice];
+ fYcs = fY10[fCurrentSlice];
+ fZcs = fZ10[fCurrentSlice];
+ fNcs = fN10[fCurrentSlice];
+ }
+ }
+ //
+ //is in 5 slice?
+ if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy5){
+ Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy5);
+ if (slice<0) slice=0;
+ if (slice>5) slice=5;
+ Bool_t isOK = (fYmin>fBy5[slice][0]&&fYmax<fBy5[slice][1]);
+ if (isOK) {
+ fCurrentSlice=slice;
+ fClustersCs = fClusters5[fCurrentSlice];
+ fClusterIndexCs = fClusterIndex5[fCurrentSlice];
+ fYcs = fY5[fCurrentSlice];
+ fZcs = fZ5[fCurrentSlice];
+ fNcs = fN5[fCurrentSlice];
+ }
+ }
+ //
+ fI=FindClusterIndex(zmin); fZmax=zmax;
+ fImax = TMath::Min(FindClusterIndex(zmax)+1,fNcs);
+ fSkip = 0;
+ fAccepted =0;
+
+ return;
+}
+//------------------------------------------------------------------------
+Int_t AliHLTITSLayer::
+FindDetectorIndex(Double_t phi, Double_t z) const {
+ //--------------------------------------------------------------------
+ //This function finds the detector crossed by the track
+ //--------------------------------------------------------------------
+ Double_t dphi;
+ if (fZOffset<0) // old geometry
+ dphi = -(phi-fPhiOffset);
+ else // new geometry
+ dphi = phi-fPhiOffset;
+
+
+ if (dphi < 0) dphi += 2*TMath::Pi();
+ else if (dphi >= 2*TMath::Pi()) dphi -= 2*TMath::Pi();
+ Int_t np=Int_t(dphi*fNladders*0.5/TMath::Pi()+0.5);
+ if (np>=fNladders) np-=fNladders;
+ if (np<0) np+=fNladders;
+
+
+ Double_t dz=fZOffset-z;
+ Double_t nnz = dz*(fNdetectors-1)*0.5/fZOffset+0.5;
+ Int_t nz = (nnz<0 ? -1 : (Int_t)nnz);
+ if (nz>=fNdetectors) return -1;
+ if (nz<0) return -1;
+
+ // ad hoc correction for 3rd ladder of SDD inner layer,
+ // which is reversed (rotated by pi around local y)
+ // this correction is OK only from AliITSv11Hybrid onwards
+ if (GetR()>12. && GetR()<20.) { // SDD inner
+ if(np==2) { // 3rd ladder
+ nz = (fNdetectors-1) - nz;
+ }
+ }
+ //printf("ndet %d phi %f z %f np %d nz %d\n",fNdetectors,phi,z,np,nz);
+
+
+ return np*fNdetectors + nz;
+}
+//------------------------------------------------------------------------
+const AliITSRecPoint *AliHLTITSLayer::GetNextCluster(Int_t &ci,Bool_t test)
+{
+ //--------------------------------------------------------------------
+ // This function returns clusters within the "window"
+ //--------------------------------------------------------------------
+
+ if (fCurrentSlice<0) {
+ Double_t rpi2 = 2.*fR*TMath::Pi();
+ for (Int_t i=fI; i<fImax; i++) {
+ Double_t y = fY[i];
+ if (fYmax<y) y -= rpi2;
+ if (fYmin>y) y += rpi2;
+ if (y<fYmin) continue;
+ if (y>fYmax) continue;
+ if (fClusters[i]->GetQ()==0&&fSkip==2) continue;
+ ci=i;
+ if (!test) fI=i+1;
+ return fClusters[i];
+ }
+ } else {
+ for (Int_t i=fI; i<fImax; i++) {
+ if (fYcs[i]<fYmin) continue;
+ if (fYcs[i]>fYmax) continue;
+ if (fClustersCs[i]->GetQ()==0&&fSkip==2) continue;
+ ci=fClusterIndexCs[i];
+ if (!test) fI=i+1;
+ return fClustersCs[i];
+ }
+ }
+ return 0;
+}
+//------------------------------------------------------------------------
+Double_t AliHLTITSLayer::GetThickness(Double_t y,Double_t z,Double_t &x0)
+const {
+ //--------------------------------------------------------------------
+ // This function returns the layer thickness at this point (units X0)
+ //--------------------------------------------------------------------
+ Double_t d=0.0085;
+ x0=AliITSRecoParam::GetX0Air();
+ if (43<fR&&fR<45) { //SSD2
+ Double_t dd=0.0034;
+ d=dd;
+ if (TMath::Abs(y-0.00)>3.40) d+=dd;
+ if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);}
+ if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);}
+ for (Int_t i=0; i<12; i++) {
+ if (TMath::Abs(z-3.9*(i+0.5))<0.15) {
+ if (TMath::Abs(y-0.00)>3.40) d+=dd;
+ d+=0.0034;
+ break;
+ }
+ if (TMath::Abs(z+3.9*(i+0.5))<0.15) {
+ if (TMath::Abs(y-0.00)>3.40) d+=dd;
+ d+=0.0034;
+ break;
+ }
+ if (TMath::Abs(z-3.4-3.9*i)<0.50) {d+=(0.016-0.0034); break;}
+ if (TMath::Abs(z+0.5+3.9*i)<0.50) {d+=(0.016-0.0034); break;}
+ }
+ } else
+ if (37<fR&&fR<41) { //SSD1
+ Double_t dd=0.0034;
+ d=dd;
+ if (TMath::Abs(y-0.00)>3.40) d+=dd;
+ if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);}
+ if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);}
+ for (Int_t i=0; i<11; i++) {
+ if (TMath::Abs(z-3.9*i)<0.15) {
+ if (TMath::Abs(y-0.00)>3.40) d+=dd;
+ d+=dd;
+ break;
+ }
+ if (TMath::Abs(z+3.9*i)<0.15) {
+ if (TMath::Abs(y-0.00)>3.40) d+=dd;
+ d+=dd;
+ break;
+ }
+ if (TMath::Abs(z-1.85-3.9*i)<0.50) {d+=(0.016-0.0034); break;}
+ if (TMath::Abs(z+2.05+3.9*i)<0.50) {d+=(0.016-0.0034); break;}
+ }
+ } else
+ if (13<fR&&fR<26) { //SDD
+ Double_t dd=0.0033;
+ d=dd;
+ if (TMath::Abs(y-0.00)>3.30) d+=dd;
+
+ if (TMath::Abs(y-1.80)<0.55) {
+ d+=0.016;
+ for (Int_t j=0; j<20; j++) {
+ if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;}
+ if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;}
+ }
+ }
+ if (TMath::Abs(y+1.80)<0.55) {
+ d+=0.016;
+ for (Int_t j=0; j<20; j++) {
+ if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;}
+ if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;}
+ }
+ }
+
+ for (Int_t i=0; i<4; i++) {
+ if (TMath::Abs(z-7.3*i)<0.60) {
+ d+=dd;
+ if (TMath::Abs(y-0.00)>3.30) d+=dd;
+ break;
+ }
+ if (TMath::Abs(z+7.3*i)<0.60) {
+ d+=dd;
+ if (TMath::Abs(y-0.00)>3.30) d+=dd;
+ break;
+ }
+ }
+ } else
+ if (6<fR&&fR<8) { //SPD2
+ Double_t dd=0.0063; x0=21.5;
+ d=dd;
+ if (TMath::Abs(y-3.08)>0.5) d+=dd;
+ if (TMath::Abs(y-3.03)<0.10) d+=0.014;
+ } else
+ if (3<fR&&fR<5) { //SPD1
+ Double_t dd=0.0063; x0=21.5;
+ d=dd;
+ if (TMath::Abs(y+0.21)>0.6) d+=dd;
+ if (TMath::Abs(y+0.10)<0.10) d+=0.014;
+ }
+
+ return d;
+}
+
+//------------------------------------------------------------------------
+Int_t AliHLTITSLayer::InRoad() const {
+ //-------------------------------------------------------------------
+ // This function returns number of clusters within the "window"
+ //--------------------------------------------------------------------
+ Int_t ncl=0;
+ for (Int_t i=fI; i<fN; i++) {
+ const AliITSRecPoint *c=fClusters[i];
+ if (c->GetZ() > fZmax) break;
+ if (c->IsUsed()) continue;
+ const AliHLTITSDetector &det=GetDetector(c->GetDetectorIndex());
+ Double_t y=fR*det.GetPhi() + c->GetY();
+
+ if (y>2.*fR*TMath::Pi()) y -= 2*fR*TMath::Pi();
+ if (y>1.*fR*TMath::Pi() && fYmax<y) y -= 2*fR*TMath::Pi();
+
+ if (y<fYmin) continue;
+ if (y>fYmax) continue;
+ ncl++;
+ }
+ return ncl;
+}
+
--- /dev/null
+// ************************************************************************
+// This file is property of and copyright by the ALICE HLT Project *
+// ALICE Experiment at CERN, All rights reserved. *
+// See cxx source for full Copyright notice *
+// *
+//*************************************************************************
+
+#ifndef ALIHLTITSLAYER_H
+#define ALIHLTITSLAYER_H
+
+#include "AliHLTITSDetector.h"
+#include "AliITSRecoParam.h"
+
+/**
+ * @class AliHLTITSLayer
+ *
+ * The AliHLTTPCCAHit class is the internal representation
+ * of the TPC clusters for the AliHLTTPCCATracker algorithm.
+ *
+ */
+class AliHLTITSLayer
+{
+ public:
+ AliHLTITSLayer();
+ AliHLTITSLayer(Double_t r, Double_t p, Double_t z, Int_t nl, Int_t nd);
+ ~AliHLTITSLayer();
+ Int_t InsertCluster(AliITSRecPoint *c);
+ void SortClusters();
+ void ResetClusters();
+ void ResetWeights();
+ void SelectClusters(Double_t zmin,Double_t zmax,Double_t ymin,Double_t ymax);
+ const AliITSRecPoint *GetNextCluster(Int_t &ci,Bool_t test=kFALSE);
+ void ResetRoad();
+ Double_t GetRoad() const {return fRoad;}
+ Double_t GetR() const {return fR;}
+ Int_t FindClusterIndex(Float_t z) const;
+ AliITSRecPoint *GetCluster(Int_t i) const {return i<fN? fClusters[i]:0;}
+ Float_t *GetWeight(Int_t i) {return i<fN ?&fClusterWeight[i]:0;}
+ AliHLTITSDetector &GetDetector(Int_t n) const { return fDetectors[n]; }
+ Int_t FindDetectorIndex(Double_t phi, Double_t z) const;
+ Double_t GetThickness(Double_t y, Double_t z, Double_t &x0) const;
+ Int_t InRoad() const ;
+ Int_t GetNumberOfClusters() const {return fN;}
+ Int_t GetNladders() const {return fNladders;}
+ Int_t GetNdetectors() const {return fNdetectors;}
+ Int_t GetSkip() const {return fSkip;}
+ void SetSkip(Int_t skip){fSkip=skip;}
+ void IncAccepted(){fAccepted++;}
+ Int_t GetAccepted() const {return fAccepted;}
+ Int_t GetClusterTracks(Int_t i, Int_t j) const {return fClusterTracks[i][j];}
+ void SetClusterTracks(Int_t i, Int_t j, Int_t c) {fClusterTracks[i][j]=c;}
+
+ protected:
+
+ AliHLTITSLayer(const AliHLTITSLayer& layer);
+ AliHLTITSLayer & operator=(const AliHLTITSLayer& layer){
+ this->~AliHLTITSLayer();new(this) AliHLTITSLayer(layer);
+ return *this;}
+ Double_t fR; // mean radius of this layer
+ Double_t fPhiOffset; // offset of the first detector in Phi
+ Int_t fNladders; // number of ladders
+ Double_t fZOffset; // offset of the first detector in Z
+ Int_t fNdetectors; // detectors/ladder
+ AliHLTITSDetector *fDetectors; // array of detectors
+ Int_t fN; // number of clusters
+ AliITSRecPoint *fClusters[AliITSRecoParam::fgkMaxClusterPerLayer]; // pointers to clusters
+ Int_t fClusterIndex[AliITSRecoParam::fgkMaxClusterPerLayer]; // pointers to clusters
+ Float_t fY[AliITSRecoParam::fgkMaxClusterPerLayer]; // y position of the clusters
+ Float_t fZ[AliITSRecoParam::fgkMaxClusterPerLayer]; // z position of the clusters
+ Float_t fYB[2]; // ymin and ymax
+ //
+ AliITSRecPoint *fClusters5[6][AliITSRecoParam::fgkMaxClusterPerLayer5]; // pointers to clusters - slice in y
+ Int_t fClusterIndex5[6][AliITSRecoParam::fgkMaxClusterPerLayer5]; // pointers to clusters - slice in y
+ Float_t fY5[6][AliITSRecoParam::fgkMaxClusterPerLayer5]; // y position of the clusters slice in y
+ Float_t fZ5[6][AliITSRecoParam::fgkMaxClusterPerLayer5]; // z position of the clusters slice in y
+ Int_t fN5[6]; // number of cluster in slice
+ Float_t fDy5; //delta y
+ Float_t fBy5[6][2]; //slice borders
+ //
+ AliITSRecPoint *fClusters10[11][AliITSRecoParam::fgkMaxClusterPerLayer10]; // pointers to clusters - slice in y
+ Int_t fClusterIndex10[11][AliITSRecoParam::fgkMaxClusterPerLayer10]; // pointers to clusters - slice in y
+ Float_t fY10[11][AliITSRecoParam::fgkMaxClusterPerLayer10]; // y position of the clusters slice in y
+ Float_t fZ10[11][AliITSRecoParam::fgkMaxClusterPerLayer10]; // z position of the clusters slice in y
+ Int_t fN10[11]; // number of cluster in slice
+ Float_t fDy10; // delta y
+ Float_t fBy10[11][2]; // slice borders
+ //
+ AliITSRecPoint *fClusters20[21][AliITSRecoParam::fgkMaxClusterPerLayer20]; // pointers to clusters - slice in y
+ Int_t fClusterIndex20[21][AliITSRecoParam::fgkMaxClusterPerLayer20]; // pointers to clusters - slice in y
+ Float_t fY20[21][AliITSRecoParam::fgkMaxClusterPerLayer20]; // y position of the clusters slice in y
+ Float_t fZ20[21][AliITSRecoParam::fgkMaxClusterPerLayer20]; // z position of the clusters slice in y
+ Int_t fN20[21]; // number of cluster in slice
+ Float_t fDy20; //delta y
+ Float_t fBy20[21][2]; //slice borders
+ //
+ AliITSRecPoint** fClustersCs; //clusters table in current slice
+ Int_t *fClusterIndexCs; //cluster index in current slice
+ Float_t *fYcs; //y position in current slice
+ Float_t *fZcs; //z position in current slice
+ Int_t fNcs; //number of clusters in current slice
+ Int_t fCurrentSlice; //current slice
+ //
+ Float_t fClusterWeight[AliITSRecoParam::fgkMaxClusterPerLayer]; // probabilistic weight of the cluster
+ Int_t fClusterTracks[4][AliITSRecoParam::fgkMaxClusterPerLayer]; //tracks registered to given cluster
+ Float_t fZmax; // edges
+ Float_t fYmin; // of the
+ Float_t fYmax; // "window"
+ Int_t fI; // index of the current cluster within the "window"
+ Int_t fImax; // index of the last cluster within the "window"
+ Int_t fSkip; // indicates possibility to skip cluster
+ Int_t fAccepted; // accept indicator
+ Double_t fRoad; // road defined by the cluster density
+};
+
+
+#endif
--- /dev/null
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+//-------------------------------------------------------------------------
+// Implementation of the ITS track class
+//
+// Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
+// dEdx analysis by: Boris Batyunya, JINR, Boris.Batiounia@cern.ch
+//-------------------------------------------------------------------------
+
+/* $Id: AliHLTITSTrack.cxx 30856 2009-02-02 11:12:50Z fca $ */
+
+#include <TMatrixD.h>
+
+#include <TMath.h>
+
+#include "AliCluster.h"
+#include "AliESDtrack.h"
+#include "AliITSgeomTGeo.h"
+#include "AliHLTITSTrack.h"
+#include "AliTracker.h"
+#include <TMath.h>
+
+#include "AliCluster.h"
+#include "AliESDtrack.h"
+#include "AliESDVertex.h"
+#include "AliITSReconstructor.h"
+#include "AliITStrackV2.h"
+#include "AliTracker.h"
+
+
+
+//____________________________________________________________________________
+AliHLTITSTrack::AliHLTITSTrack() :
+ AliKalmanTrack(),
+ fESDtrack(0),
+ fExpQ(40)
+{
+ for(Int_t i=0; i<2*AliITSgeomTGeo::kNLayers; i++) {fIndex[i]=-1; }
+}
+
+//____________________________________________________________________________
+AliHLTITSTrack::AliHLTITSTrack(const AliHLTITSTrack& t) :
+ AliKalmanTrack(t),
+ fESDtrack(t.fESDtrack),
+ fExpQ(t.fExpQ)
+{
+ //------------------------------------------------------------------
+ //Copy constructor
+ //------------------------------------------------------------------
+ Int_t i;
+ for (i=0; i<2*AliITSgeomTGeo::GetNLayers(); i++) {
+ fIndex[i]=t.fIndex[i];
+ }
+ fLab = t.fLab;
+ fFakeRatio = t.fFakeRatio;
+}
+
+//____________________________________________________________________________
+AliHLTITSTrack &AliHLTITSTrack::operator=(const AliHLTITSTrack& t)
+{
+ //------------------------------------------------------------------
+ //Copy constructor
+ //------------------------------------------------------------------
+ *(AliKalmanTrack*)this = t;
+ fESDtrack = t.fESDtrack;
+ fExpQ = t.fExpQ;
+ Int_t i;
+ for (i=0; i<2*AliITSgeomTGeo::GetNLayers(); i++) {
+ fIndex[i]=t.fIndex[i];
+ }
+ fLab = t.fLab;
+ fFakeRatio = t.fFakeRatio;
+}
+
+
+//____________________________________________________________________________
+AliHLTITSTrack::AliHLTITSTrack(AliESDtrack& t,Bool_t c) throw (const Char_t *) :
+ AliKalmanTrack(),
+ fESDtrack(&t),
+ fExpQ(40)
+{
+ //------------------------------------------------------------------
+ // Conversion ESD track -> ITS track.
+ // If c==kTRUE, create the ITS track out of the constrained params.
+ //------------------------------------------------------------------
+ const AliExternalTrackParam *par=&t;
+ if (c) {
+ par=t.GetConstrainedParam();
+ if (!par) throw "AliHLTITSTrack: conversion failed !\n";
+ }
+ Set(par->GetX(),par->GetAlpha(),par->GetParameter(),par->GetCovariance());
+
+ SetLabel(t.GetLabel());
+ SetMass(t.GetMass());
+ SetNumberOfClusters(t.GetITSclusters(fIndex));
+
+ if (t.GetStatus()&AliESDtrack::kTIME) {
+ StartTimeIntegral();
+ Double_t times[10]; t.GetIntegratedTimes(times); SetIntegratedTimes(times);
+ SetIntegratedLength(t.GetIntegratedLength());
+ }
+}
+
+Double_t AliHLTITSTrack::GetPredictedChi2(const AliCluster* c) const
+{
+ return GetPredictedChi2(c->GetY(), c->GetZ(), c->GetSigmaY2(), c->GetSigmaZ2() );
+}
+
+Double_t AliHLTITSTrack::GetPredictedChi2(Double_t cy, Double_t cz, Double_t cerr2Y, Double_t cerr2Z) const
+{
+ //-----------------------------------------------------------------
+ // This function calculates a predicted chi2 increment.
+ //-----------------------------------------------------------------
+ Double_t p[2]={cy, cz};
+ Double_t cov[3]={cerr2Y, 0., cerr2Z};
+ return AliExternalTrackParam::GetPredictedChi2(p,cov);
+}
+
+
+
+
+Int_t AliHLTITSTrack::GetProlongationFast(Double_t alp, Double_t xk,Double_t &y, Double_t &z)
+{
+ //-----------------------------------------------------------------------------
+ //get fast prolongation
+ //-----------------------------------------------------------------------------
+ Double_t ca=TMath::Cos(alp-GetAlpha()), sa=TMath::Sin(alp-GetAlpha());
+ Double_t cf=TMath::Sqrt((1.-GetSnp())*(1.+GetSnp()));
+ // **** rotation **********************
+ y= -GetX()*sa + GetY()*ca;
+ // **** translation ******************
+ Double_t dx = xk- GetX()*ca - GetY()*sa;
+ Double_t f1=GetSnp()*ca - cf*sa, f2=f1 + GetC()*dx;
+ if (TMath::Abs(f2) >= 0.9999) {
+ return 0;
+ }
+ Double_t r1=TMath::Sqrt((1.-f1)*(1.+f1)), r2=TMath::Sqrt((1.-f2)*(1.+f2));
+ y += dx*(f1+f2)/(r1+r2);
+ z = GetZ()+dx*(f1+f2)/(f1*r2 + f2*r1)*GetTgl();
+ return 1;
+}
+
+
+
+//____________________________________________________________________________
+void AliHLTITSTrack::ResetClusters() {
+ //------------------------------------------------------------------
+ // Reset the array of attached clusters.
+ //------------------------------------------------------------------
+ for (Int_t i=0; i<2*AliITSgeomTGeo::kNLayers; i++) fIndex[i]=-1;
+ SetChi2(0.);
+ SetNumberOfClusters(0);
+}
+
+void AliHLTITSTrack::UpdateESDtrack(ULong_t flags) const {
+ fESDtrack->UpdateTrackParams(this,flags);
+}
+
+
+
+
+//____________________________________________________________________________
+
+
+//____________________________________________________________________________
+Bool_t AliHLTITSTrack::
+GetGlobalXYZat(Double_t xloc, Double_t &x, Double_t &y, Double_t &z) const {
+ //------------------------------------------------------------------
+ //This function returns a track position in the global system
+ //------------------------------------------------------------------
+ Double_t r[3];
+ Bool_t rc=GetXYZAt(xloc, GetBz(), r);
+ x=r[0]; y=r[1]; z=r[2];
+ return rc;
+}
+
+
+//____________________________________________________________________________
+Bool_t AliHLTITSTrack::PropagateTo(Double_t xk, Double_t d, Double_t x0) {
+ //------------------------------------------------------------------
+ //This function propagates a track
+ //------------------------------------------------------------------
+
+ Double_t oldX=GetX(), oldY=GetY(), oldZ=GetZ();
+
+ Double_t bz=GetBz();
+ if (!AliExternalTrackParam::PropagateTo(xk,bz)) return kFALSE;
+ Double_t xOverX0,xTimesRho;
+ xOverX0 = d; xTimesRho = d*x0;
+ if (!CorrectForMeanMaterial(xOverX0,xTimesRho,kTRUE)) return kFALSE;
+
+ Double_t x=GetX(), y=GetY(), z=GetZ();
+ if (IsStartedTimeIntegral() && x>oldX) {
+ Double_t l2 = (x-oldX)*(x-oldX) + (y-oldY)*(y-oldY) + (z-oldZ)*(z-oldZ);
+ AddTimeStep(TMath::Sqrt(l2));
+ }
+
+ return kTRUE;
+}
+
+//____________________________________________________________________________
+Bool_t AliHLTITSTrack::PropagateToTGeo(Double_t xToGo, Int_t nstep, Double_t &xOverX0, Double_t &xTimesRho, Bool_t addTime) {
+ //-------------------------------------------------------------------
+ // Propagates the track to a reference plane x=xToGo in n steps.
+ // These n steps are only used to take into account the curvature.
+ // The material is calculated with TGeo. (L.Gaudichet)
+ //-------------------------------------------------------------------
+
+ Double_t startx = GetX(), starty = GetY(), startz = GetZ();
+ Double_t sign = (startx<xToGo) ? -1.:1.;
+ Double_t step = (xToGo-startx)/TMath::Abs(nstep);
+
+ Double_t start[3], end[3], mparam[7], bz = GetBz();
+ Double_t x = startx;
+
+ for (Int_t i=0; i<nstep; i++) {
+
+ GetXYZ(start); //starting global position
+ x += step;
+ if (!GetXYZAt(x, bz, end)) return kFALSE;
+ if (!AliExternalTrackParam::PropagateTo(x, bz)) return kFALSE;
+ AliTracker::MeanMaterialBudget(start, end, mparam);
+ xTimesRho = sign*mparam[4]*mparam[0];
+ xOverX0 = mparam[1];
+ if (mparam[1]<900000) {
+ if (!AliExternalTrackParam::CorrectForMeanMaterial(xOverX0,
+ xTimesRho,GetMass())) return kFALSE;
+ } else { // this happens when MeanMaterialBudget cannot cross a boundary
+ return kFALSE;
+ }
+ }
+
+ if (addTime && IsStartedTimeIntegral() && GetX()>startx) {
+ Double_t l2 = ( (GetX()-startx)*(GetX()-startx) +
+ (GetY()-starty)*(GetY()-starty) +
+ (GetZ()-startz)*(GetZ()-startz) );
+ AddTimeStep(TMath::Sqrt(l2));
+ }
+
+ return kTRUE;
+}
+
+//____________________________________________________________________________
+Bool_t AliHLTITSTrack::Update(const AliCluster* c, Double_t chi2, Int_t index)
+{
+ //------------------------------------------------------------------
+ //This function updates track parameters
+ //------------------------------------------------------------------
+ Double_t p[2]={c->GetY(), c->GetZ()};
+ Double_t cov[3]={c->GetSigmaY2(), 0., c->GetSigmaZ2()};
+
+ if (!AliExternalTrackParam::Update(p,cov)) return kFALSE;
+
+ Int_t n=GetNumberOfClusters();
+
+ if (chi2<0) return kTRUE;
+
+ // fill residuals for ITS+TPC tracks
+ if (fESDtrack) {
+ if (fESDtrack->GetStatus()&AliESDtrack::kTPCin) {
+ AliTracker::FillResiduals(this,p,cov,c->GetVolumeId());
+ }
+ }
+
+ fIndex[n]=index;
+ SetNumberOfClusters(n+1);
+ SetChi2(GetChi2()+chi2);
+
+ return kTRUE;
+}
+
+
+
+//____________________________________________________________________________
+Bool_t AliHLTITSTrack::Propagate(Double_t alp,Double_t xk) {
+ //------------------------------------------------------------------
+ //This function propagates a track
+ //------------------------------------------------------------------
+ Double_t bz=GetBz();
+ if (!AliExternalTrackParam::Propagate(alp,xk,bz)) return kFALSE;
+
+ return kTRUE;
+}
+
+
+
+
+
+//____________________________________________________________________________
+Bool_t AliHLTITSTrack::
+GetPhiZat(Double_t r, Double_t &phi, Double_t &z) const {
+ //------------------------------------------------------------------
+ // This function returns the global cylindrical (phi,z) of the track
+ // position estimated at the radius r.
+ // The track curvature is neglected.
+ //------------------------------------------------------------------
+ Double_t d=GetD(0.,0.);
+ if (TMath::Abs(d) > r) {
+ if (r>1e-1) return kFALSE;
+ r = TMath::Abs(d);
+ }
+
+ Double_t rcurr=TMath::Sqrt(GetX()*GetX() + GetY()*GetY());
+ if (TMath::Abs(d) > rcurr) return kFALSE;
+ Double_t globXYZcurr[3]; GetXYZ(globXYZcurr);
+ Double_t phicurr=TMath::ATan2(globXYZcurr[1],globXYZcurr[0]);
+
+ if (GetX()>=0.) {
+ phi=phicurr+TMath::ASin(d/r)-TMath::ASin(d/rcurr);
+ } else {
+ phi=phicurr+TMath::ASin(d/r)+TMath::ASin(d/rcurr)-TMath::Pi();
+ }
+
+ // return a phi in [0,2pi[
+ if (phi<0.) phi+=2.*TMath::Pi();
+ else if (phi>=2.*TMath::Pi()) phi-=2.*TMath::Pi();
+ z=GetZ()+GetTgl()*(TMath::Sqrt((r-d)*(r+d))-TMath::Sqrt((rcurr-d)*(rcurr+d)));
+ return kTRUE;
+}
+
+//____________________________________________________________________________
+Bool_t AliHLTITSTrack::
+GetLocalXat(Double_t r,Double_t &xloc) const {
+ //------------------------------------------------------------------
+ // This function returns the local x of the track
+ // position estimated at the radius r.
+ // The track curvature is neglected.
+ //------------------------------------------------------------------
+ Double_t d=GetD(0.,0.);
+ if (TMath::Abs(d) > r) {
+ if (r>1e-1) return kFALSE;
+ r = TMath::Abs(d);
+ }
+
+ Double_t rcurr=TMath::Sqrt(GetX()*GetX() + GetY()*GetY());
+ Double_t globXYZcurr[3]; GetXYZ(globXYZcurr);
+ Double_t phicurr=TMath::ATan2(globXYZcurr[1],globXYZcurr[0]);
+ Double_t phi;
+ if (GetX()>=0.) {
+ phi=phicurr+TMath::ASin(d/r)-TMath::ASin(d/rcurr);
+ } else {
+ phi=phicurr+TMath::ASin(d/r)+TMath::ASin(d/rcurr)-TMath::Pi();
+ }
+
+ xloc=r*(TMath::Cos(phi)*TMath::Cos(GetAlpha())
+ +TMath::Sin(phi)*TMath::Sin(GetAlpha()));
+
+ return kTRUE;
+}
--- /dev/null
+#ifndef ALIHLTITSTRACK1_H
+#define ALIHLTITSTRACK1_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+
+
+#include "AliKalmanTrack.h"
+#include "AliITSRecoParam.h"
+#include "AliITSgeomTGeo.h"
+
+class AliESDtrack;
+class AliESDVertex;
+class AliTracker;
+class AliESDtrack;
+
+//_____________________________________________________________________________
+class AliHLTITSTrack : public AliKalmanTrack
+{
+ public:
+ AliHLTITSTrack();
+ AliHLTITSTrack(AliESDtrack& t,Bool_t c=kFALSE) throw (const Char_t *);
+ AliHLTITSTrack(const AliHLTITSTrack& t);
+ AliHLTITSTrack &operator=(const AliHLTITSTrack& t);
+
+ Int_t GetProlongationFast(Double_t alpha, Double_t xr,Double_t &y, Double_t &z);
+
+
+ Float_t GetExpQ() const {return fExpQ;}
+ void SetExpQ(Float_t f) {fExpQ=f;}
+
+ Double_t GetPredictedChi2(const AliCluster* c) const;
+ Double_t GetPredictedChi2(Double_t cy, Double_t cz, Double_t cerr2Y, Double_t cerr2Z) const;
+
+
+ Bool_t CorrectForMeanMaterial(Double_t xOverX0, Double_t xTimesRho,
+ Bool_t anglecorr=kFALSE) {
+ return AliExternalTrackParam::CorrectForMeanMaterial(xOverX0,xTimesRho,GetMass(),anglecorr);
+ }
+
+ Bool_t PropagateTo(Double_t xr, Double_t d, Double_t x0=AliITSRecoParam::GetX0Air());
+
+ Bool_t PropagateToTGeo(Double_t xToGo, Int_t nstep, Double_t &xOverX0, Double_t &xTimesRho, Bool_t addTime=kTRUE);
+ Bool_t PropagateToTGeo(Double_t xToGo, Int_t nstep=1, Bool_t addTime=kTRUE) {
+ Double_t dummy1,dummy2; return PropagateToTGeo(xToGo,nstep,dummy1,dummy2,addTime);
+ }
+
+ Bool_t Update(const AliCluster *cl, Double_t chi2, Int_t i);
+
+ Bool_t Propagate(Double_t alpha, Double_t xr);
+ Bool_t Propagate(Double_t xr) { return Propagate(GetAlpha(),xr); }
+
+ void ResetClusters();
+ void UpdateESDtrack(ULong_t flags) const;
+
+ AliESDtrack *GetESDtrack() const {return fESDtrack;}
+
+ using AliExternalTrackParam::GetC;
+ Double_t GetC() const {return AliExternalTrackParam::GetC(GetBz());}
+ Double_t GetD(Double_t x, Double_t y) const {
+ return AliExternalTrackParam::GetD(x,y,GetBz());
+ }
+
+ Bool_t GetGlobalXYZat(Double_t xloc,Double_t &x,Double_t &y,Double_t &z) const;
+ Bool_t GetPhiZat(Double_t r,Double_t &phi,Double_t &z) const;
+ Bool_t GetLocalXat(Double_t r,Double_t &xloc) const;
+
+ Int_t GetClusterIndex(Int_t i) const {return fIndex[i];}
+ void SetClusterIndex(Int_t i, Int_t index ) { fIndex[i] = index;}
+
+ protected:
+
+
+ Int_t fIndex[2*AliITSgeomTGeo::kNLayers]; // indices of associated clusters
+
+
+ AliESDtrack *fESDtrack; //! pointer to the connected ESD track
+
+ Float_t fExpQ; // expected Q
+};
+
+
+
+
+
+#endif
+
+
--- /dev/null
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+
+#include "AliHLTVertexer.h"
+#include "AliTracker.h"
+#include "TMath.h"
+#include "AliESDtrack.h"
+#include "AliESDv0.h"
+#include "AliESDVertex.h"
+#include "AliESDEvent.h"
+#include "AliKFParticle.h"
+#include "AliKFVertex.h"
+
+
+AliHLTVertexer::AliHLTVertexer():
+ fESD(0),
+ fTrackInfos(0)
+{
+}
+
+AliHLTVertexer::AliHLTVertexer(const AliHLTVertexer & ):
+ fESD(0),
+ fTrackInfos(0)
+{
+}
+
+void AliHLTVertexer::SetESD( AliESDEvent *event )
+{
+ //* Fill fTrackInfo array
+
+ delete[] fTrackInfos;
+ fESD = event;
+
+ AliKFParticle::SetField( fESD->GetMagneticField() );
+
+ Int_t nESDTracks=event->GetNumberOfTracks();
+ fTrackInfos = new AliESDTrackInfo[ nESDTracks ];
+
+ for (Int_t iTr=0; iTr<nESDTracks; iTr++){
+
+ AliESDTrackInfo &info = fTrackInfos[iTr];
+ info.fOK = 0;
+ info.fPrimUsedFlag = 0;
+
+ //* track quality check
+
+ AliESDtrack *pTrack = event->GetTrack(iTr);
+ if( !pTrack ) continue;
+ if (pTrack->GetKinkIndex(0)>0) continue;
+ if ( !( pTrack->GetStatus()&AliESDtrack::kTPCin ) ) continue;
+
+ //* Construct KFParticle for the track
+
+ info.fParticle = AliKFParticle( *pTrack, 211 );
+ info.fOK = 1;
+ }
+}
+
+
+void AliHLTVertexer::FindPrimaryVertex( )
+{
+ //* Find event primary vertex
+
+ int nTracks = fESD->GetNumberOfTracks();
+
+ const AliKFParticle **vSelected = new const AliKFParticle*[nTracks]; //* Selected particles for vertex fit
+ Int_t *vIndex = new int [nTracks]; //* Indices of selected particles
+ Bool_t *vFlag = new bool [nTracks]; //* Flags returned by the vertex finder
+
+ Int_t nSelected = 0;
+ for( Int_t i = 0; i<nTracks; i++){
+ if(fTrackInfos[i].fOK ){
+ vSelected[nSelected] = &(fTrackInfos[i].fParticle);
+ vIndex[nSelected] = i;
+ nSelected++;
+ }
+ }
+
+ AliKFVertex primVtx;
+ primVtx.SetBeamConstraint(fESD->GetDiamondX(),fESD->GetDiamondY(),0,
+ TMath::Sqrt(fESD->GetSigma2DiamondX()),TMath::Sqrt(fESD->GetSigma2DiamondY()),5.3);
+
+ primVtx.ConstructPrimaryVertex( vSelected, nSelected, vFlag, 3. );
+ for( Int_t i = 0; i<nSelected; i++){
+ if( vFlag[i] ) fTrackInfos[vIndex[i]].fPrimUsedFlag = 1;
+ }
+
+
+ AliESDVertex vESD( primVtx.Parameters(), primVtx.CovarianceMatrix(), primVtx.GetChi2(), primVtx.GetNContributors() );
+ fESD->SetPrimaryVertexTracks( &vESD );
+
+ delete[] vSelected;
+ delete[] vIndex;
+ delete[] vFlag;
+}
+
+
+void AliHLTVertexer::FindV0s( )
+{
+ //* V0 finder
+
+ int nTracks = fESD->GetNumberOfTracks();
+ AliKFVertex primVtx( *fESD->GetPrimaryVertexTracks() );
+
+ for( Int_t iTr = 0; iTr<nTracks; iTr++ ){ //* first daughter
+
+ AliESDTrackInfo &info = fTrackInfos[iTr];
+ if( !info.fOK ) continue;
+
+ for( Int_t jTr = iTr+1; jTr<nTracks; jTr++ ){ //* second daughter
+ AliESDTrackInfo &jnfo = fTrackInfos[jTr];
+ if( !jnfo.fOK ) continue;
+
+ //* check for different charge
+
+ if( info.fParticle.GetQ() == jnfo.fParticle.GetQ() ) continue;
+
+ //* construct V0 mother
+
+ AliKFParticle V0( info.fParticle, jnfo.fParticle );
+
+ //* check V0 Chi^2
+
+ if( V0.GetNDF()<1 ) continue;
+ if( TMath::Sqrt(TMath::Abs(V0.GetChi2()/V0.GetNDF())) >3. ) continue;
+
+ //* subtruct daughters from primary vertex
+
+ AliKFVertex primVtxCopy = primVtx;
+
+ if( info.fPrimUsedFlag ) primVtxCopy -= info.fParticle;
+ if( jnfo.fPrimUsedFlag ) primVtxCopy -= jnfo.fParticle;
+
+ //* Check V0 Chi^2 deviation from primary vertex
+
+ if( V0.GetDeviationFromVertex( primVtxCopy ) >3. ) continue;
+
+ //* Add V0 to primary vertex to improve the primary vertex resolution
+
+ primVtxCopy += V0;
+
+ //* Set production vertex for V0
+
+ V0.SetProductionVertex( primVtxCopy );
+
+ //* Check chi^2 for a case
+
+ if( TMath::Sqrt( TMath::Abs(V0.GetChi2()/V0.GetNDF()) >3. )) continue;
+
+ //* Get V0 decay length with estimated error
+
+ Double_t length, sigmaLength;
+ if( V0.GetDecayLength( length, sigmaLength ) ) continue;
+
+ //* Reject V0 if it decays too close to the primary vertex
+
+ if( length <3.*sigmaLength ) continue;
+
+ //* Get V0 invariant mass
+
+ // Double_t mass, sigmaMass;
+ //if( V0.GetMass( mass, sigmaMass ) ) continue;
+
+ //* add ESD v0
+
+ AliESDv0 v0ESD( *fESD->GetTrack( iTr ), iTr, *fESD->GetTrack( jTr ), jTr );
+
+ fESD->AddV0( &v0ESD );
+ }
+ }
+}
+
--- /dev/null
+#ifndef ALIHLTVERTEXER_H
+#define ALIHLTVERTEXER_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+
+
+#include "AliKFParticle.h"
+
+class AliESDtrack;
+class AliESDVertex;
+class AliTracker;
+class AliESDtrack;
+class AliESDEvent;
+
+class AliHLTVertexer
+{
+public:
+
+ class AliESDTrackInfo{
+ public:
+ AliESDTrackInfo(){}
+
+ AliKFParticle fParticle; //* assigned KFParticle
+ Bool_t fPrimUsedFlag; //* flag shows that the particle was used for primary vertex fit
+ Bool_t fOK; //* is the track good enough
+ };
+
+ AliHLTVertexer();
+ ~AliHLTVertexer(){ delete[] fTrackInfos; }
+
+ void SetESD( AliESDEvent *event );
+
+ void FindPrimaryVertex();
+ void FindV0s();
+
+ private:
+
+ AliHLTVertexer(const AliHLTVertexer &t);
+ AliHLTVertexer &operator = (const AliHLTVertexer & ){ return *this; }
+
+ AliESDEvent *fESD;
+ AliESDTrackInfo *fTrackInfos;
+
+};
+
+
+
+#endif
+
+
--- /dev/null
+/**************************************************************************
+ * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+/* $Id: AliITStrackerHLT.cxx 32466 2009-05-20 07:51:56Z hristov $ */
+
+//-------------------------------------------------------------------------
+// Implementation of the ITS tracker class
+// It reads AliITSRecPoint clusters and creates AliHLTITSTrack tracks
+// and fills with them the ESD
+// Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
+// Current support and development:
+// Andrea Dainese, andrea.dainese@lnl.infn.it
+// dE/dx analysis by: Boris Batyunya, JINR, Boris.Batiounia@cern.ch
+// Params moved to AliITSRecoParam by: Andrea Dainese, INFN
+// Material budget from TGeo by: Ludovic Gaudichet & Andrea Dainese, INFN
+//-------------------------------------------------------------------------
+
+//#include <TMatrixD.h>
+#include <TTree.h>
+#include <TDatabasePDG.h>
+#include <TString.h>
+#include <TRandom.h>
+#include <TTreeStream.h>
+
+
+#include "AliLog.h"
+#include "AliITSCalibrationSPD.h"
+#include "AliITSCalibrationSDD.h"
+#include "AliITSCalibrationSSD.h"
+#include "AliCDBEntry.h"
+#include "AliCDBManager.h"
+#include "AliAlignObj.h"
+#include "AliTrackPointArray.h"
+#include "AliESDVertex.h"
+#include "AliESDEvent.h"
+#include "AliESDtrack.h"
+#include "AliV0.h"
+#include "AliHelix.h"
+#include "AliITSChannelStatus.h"
+#include "AliITSDetTypeRec.h"
+#include "AliITSRecPoint.h"
+#include "AliITSgeomTGeo.h"
+#include "AliITSReconstructor.h"
+#include "AliITSClusterParam.h"
+#include "AliITSsegmentation.h"
+#include "AliITSCalibration.h"
+#include "AliITSV0Finder.h"
+#include "AliITStrackerHLT.h"
+//#include "AliHLTTPCCATrackParam.h"
+#include "AliHLTVertexer.h"
+
+
+
+Bool_t AliITStrackerHLT::TransportToX( AliExternalTrackParam *t, double x ) const
+{
+ return t->PropagateTo( x, t->GetBz() );
+}
+
+Bool_t AliITStrackerHLT::TransportToPhiX( AliExternalTrackParam *t, double phi, double x ) const
+{
+ return t->Propagate( phi, x, t->GetBz() );
+}
+
+
+//------------------------------------------------------------------------
+Int_t AliITStrackerHLT::UpdateMI(AliHLTITSTrack* track, const AliITSRecPoint* cl,Double_t /*chi2*/,Int_t index) const
+{
+ //
+ // Update ITS track
+ //
+
+ if (cl->GetQ()<=0) return 0; // ingore the "virtual" clusters
+
+ Int_t layer = (index & 0xf0000000) >> 28;
+
+ // Take into account the mis-alignment (bring track to cluster plane)
+
+ Double_t xTrOrig=track->GetX();
+ if (!TransportToX( track, xTrOrig + cl->GetX() ) ) return 0;
+
+ Double_t err2Y, err2Z;
+
+ GetClusterErrors2( layer, cl, track, err2Y, err2Z );
+
+ Double_t p[2]={ cl->GetY(), cl->GetZ()};
+ Double_t cov[3]={err2Y, 0., err2Z};
+
+ Int_t updated = 1;
+ //if( layer!=2 && layer!=3 )
+ updated = track->AliExternalTrackParam::Update(p,cov);
+
+ int n = track->GetNumberOfClusters();
+ track->SetClusterIndex(n,index);
+ track->SetNumberOfClusters(n+1);
+
+ return updated;
+}
+
+
+AliHLTITSLayer AliITStrackerHLT::fgLayers[AliITSgeomTGeo::kNLayers]; // ITS layers
+
+AliITStrackerHLT::AliITStrackerHLT():AliTracker(),
+fEsd(0),
+fUseTGeo(3),
+fxOverX0Pipe(-1.),
+fxTimesRhoPipe(-1.),
+fDebugStreamer(0),
+fITSChannelStatus(0),
+fkDetTypeRec(0)
+{
+ //Default constructor
+ Int_t i;
+ for(i=0;i<4;i++) fSPDdetzcentre[i]=0.;
+ for(i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;}
+ for(i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;}
+}
+//------------------------------------------------------------------------
+AliITStrackerHLT::AliITStrackerHLT(const Char_t *geom) : AliTracker(),
+fEsd(0),
+fUseTGeo(3),
+fxOverX0Pipe(-1.),
+fxTimesRhoPipe(-1.),
+fDebugStreamer(0),
+fITSChannelStatus(0),
+fkDetTypeRec(0)
+{
+ //--------------------------------------------------------------------
+ //This is the AliITStrackerHLT constructor
+ //--------------------------------------------------------------------
+ if (geom) {
+ AliWarning("\"geom\" is actually a dummy argument !");
+ }
+
+ for (Int_t i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) {
+ Int_t nlad=AliITSgeomTGeo::GetNLadders(i);
+ Int_t ndet=AliITSgeomTGeo::GetNDetectors(i);
+
+ Double_t xyz[3], &x=xyz[0], &y=xyz[1], &z=xyz[2];
+ AliITSgeomTGeo::GetOrigTranslation(i,1,1,xyz);
+ Double_t poff=TMath::ATan2(y,x);
+ Double_t zoff=z;
+ Double_t r=TMath::Sqrt(x*x + y*y);
+
+ AliITSgeomTGeo::GetOrigTranslation(i,1,2,xyz);
+ r += TMath::Sqrt(x*x + y*y);
+ AliITSgeomTGeo::GetOrigTranslation(i,2,1,xyz);
+ r += TMath::Sqrt(x*x + y*y);
+ AliITSgeomTGeo::GetOrigTranslation(i,2,2,xyz);
+ r += TMath::Sqrt(x*x + y*y);
+ r*=0.25;
+
+ new (fgLayers+i-1) AliHLTITSLayer(r,poff,zoff,nlad,ndet);
+
+ for (Int_t j=1; j<nlad+1; j++) {
+ for (Int_t k=1; k<ndet+1; k++) { //Fill this layer with detectors
+ TGeoHMatrix m; AliITSgeomTGeo::GetOrigMatrix(i,j,k,m);
+ const TGeoHMatrix *tm=AliITSgeomTGeo::GetTracking2LocalMatrix(i,j,k);
+ m.Multiply(tm);
+ Double_t txyz[3]={0.};
+ xyz[0]=0.;xyz[1]=0.;xyz[2]=0.;
+ m.LocalToMaster(txyz,xyz);
+ r=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
+ Double_t phi=TMath::ATan2(xyz[1],xyz[0]);
+
+ if (phi<0) phi+=TMath::TwoPi();
+ else if (phi>=TMath::TwoPi()) phi-=TMath::TwoPi();
+
+ AliHLTITSDetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1);
+ new(&det) AliHLTITSDetector(r,phi);
+ // compute the real radius (with misalignment)
+ TGeoHMatrix mmisal(*(AliITSgeomTGeo::GetMatrix(i,j,k)));
+ mmisal.Multiply(tm);
+ xyz[0]=0.;xyz[1]=0.;xyz[2]=0.;
+ mmisal.LocalToMaster(txyz,xyz);
+ Double_t rmisal=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
+ det.SetRmisal(rmisal);
+
+ } // end loop on detectors
+ } // end loop on ladders
+ } // end loop on layers
+
+
+
+ Double_t xyzVtx[]={AliITSReconstructor::GetRecoParam()->GetXVdef(),
+ AliITSReconstructor::GetRecoParam()->GetYVdef(),
+ AliITSReconstructor::GetRecoParam()->GetZVdef()};
+ Double_t ersVtx[]={AliITSReconstructor::GetRecoParam()->GetSigmaXVdef(),
+ AliITSReconstructor::GetRecoParam()->GetSigmaYVdef(),
+ AliITSReconstructor::GetRecoParam()->GetSigmaZVdef()};
+ SetVertex(xyzVtx,ersVtx);
+
+ // store positions of centre of SPD modules (in z)
+ Double_t tr[3];
+ AliITSgeomTGeo::GetTranslation(1,1,1,tr);
+ fSPDdetzcentre[0] = tr[2];
+ AliITSgeomTGeo::GetTranslation(1,1,2,tr);
+ fSPDdetzcentre[1] = tr[2];
+ AliITSgeomTGeo::GetTranslation(1,1,3,tr);
+ fSPDdetzcentre[2] = tr[2];
+ AliITSgeomTGeo::GetTranslation(1,1,4,tr);
+ fSPDdetzcentre[3] = tr[2];
+
+ fUseTGeo = AliITSReconstructor::GetRecoParam()->GetUseTGeoInTracker();
+ if(AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance() && fUseTGeo!=1 && fUseTGeo!=3) {
+ AliWarning("fUseTGeo changed to 3 because fExtendedEtaAcceptance is kTRUE");
+ fUseTGeo = 3;
+ }
+
+ for(Int_t i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;}
+ for(Int_t i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;}
+
+ fDebugStreamer = new TTreeSRedirector("ITSdebug.root");
+
+}
+//------------------------------------------------------------------------
+AliITStrackerHLT::AliITStrackerHLT(const AliITStrackerHLT &tracker):AliTracker(tracker),
+fEsd(tracker.fEsd),
+fUseTGeo(tracker.fUseTGeo),
+fxOverX0Pipe(tracker.fxOverX0Pipe),
+fxTimesRhoPipe(tracker.fxTimesRhoPipe),
+fDebugStreamer(tracker.fDebugStreamer),
+fITSChannelStatus(tracker.fITSChannelStatus),
+fkDetTypeRec(tracker.fkDetTypeRec)
+{
+ //Copy constructor
+ Int_t i;
+ for(i=0;i<4;i++) {
+ fSPDdetzcentre[i]=tracker.fSPDdetzcentre[i];
+ }
+ for(i=0;i<6;i++) {
+ fxOverX0Layer[i]=tracker.fxOverX0Layer[i];
+ fxTimesRhoLayer[i]=tracker.fxTimesRhoLayer[i];
+ }
+ for(i=0;i<2;i++) {
+ fxOverX0Shield[i]=tracker.fxOverX0Shield[i];
+ fxTimesRhoShield[i]=tracker.fxTimesRhoShield[i];
+ }
+}
+//------------------------------------------------------------------------
+AliITStrackerHLT & AliITStrackerHLT::operator=(const AliITStrackerHLT &tracker){
+ //Assignment operator
+ this->~AliITStrackerHLT();
+ new(this) AliITStrackerHLT(tracker);
+ return *this;
+}
+//------------------------------------------------------------------------
+AliITStrackerHLT::~AliITStrackerHLT()
+{
+ //
+ //destructor
+ //
+ if (fDebugStreamer) {
+ //fDebugStreamer->Close();
+ delete fDebugStreamer;
+ }
+ if(fITSChannelStatus) delete fITSChannelStatus;
+}
+
+
+//------------------------------------------------------------------------
+void AliITStrackerHLT::ReadBadFromDetTypeRec() {
+ //--------------------------------------------------------------------
+ //This function read ITS bad detectors, chips, channels from AliITSDetTypeRec
+ //i.e. from OCDB
+ //--------------------------------------------------------------------
+
+ if(!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return;
+
+ Info("ReadBadFromDetTypeRec","Reading info about bad ITS detectors and channels");
+
+ if(!fkDetTypeRec) Error("ReadBadFromDetTypeRec","AliITSDetTypeRec nof found!\n");
+
+ // ITS channels map
+ if(fITSChannelStatus) delete fITSChannelStatus;
+ fITSChannelStatus = new AliITSChannelStatus(fkDetTypeRec);
+
+ // ITS detectors and chips
+ Int_t i=0,j=0,k=0,ndet=0;
+ for (i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) {
+ Int_t nBadDetsPerLayer=0;
+ ndet=AliITSgeomTGeo::GetNDetectors(i);
+ for (j=1; j<AliITSgeomTGeo::GetNLadders(i)+1; j++) {
+ for (k=1; k<ndet+1; k++) {
+ AliHLTITSDetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1);
+ det.ReadBadDetectorAndChips(i-1,(j-1)*ndet + k-1,fkDetTypeRec);
+ if(det.IsBad()) {nBadDetsPerLayer++;}
+ } // end loop on detectors
+ } // end loop on ladders
+ Info("ReadBadFromDetTypeRec",Form("Layer %d: %d bad out of %d",i-1,nBadDetsPerLayer,ndet*AliITSgeomTGeo::GetNLadders(i)));
+ } // end loop on layers
+
+ return;
+}
+//------------------------------------------------------------------------
+Int_t AliITStrackerHLT::LoadClusters(TTree *cTree) {
+ //--------------------------------------------------------------------
+ //This function loads ITS clusters
+ //--------------------------------------------------------------------
+ TBranch *branch=cTree->GetBranch("ITSRecPoints");
+ if (!branch) {
+ Error("LoadClusters"," can't get the branch !\n");
+ return 1;
+ }
+
+ static TClonesArray dummy("AliITSRecPoint",10000), *clusters=&dummy;
+ branch->SetAddress(&clusters);
+
+ Int_t i=0,j=0,ndet=0;
+ Int_t detector=0;
+ for (i=0; i<AliITSgeomTGeo::GetNLayers(); i++) {
+ ndet=fgLayers[i].GetNdetectors();
+ Int_t jmax = j + fgLayers[i].GetNladders()*ndet;
+ for (; j<jmax; j++) {
+ if (!cTree->GetEvent(j)) continue;
+ Int_t ncl=clusters->GetEntriesFast();
+ SignDeltas(clusters,GetZ());
+
+ while (ncl--) {
+ AliITSRecPoint *c=(AliITSRecPoint*)clusters->UncheckedAt(ncl);
+ detector=c->GetDetectorIndex();
+
+ if (!c->Misalign()) AliWarning("Can't misalign this cluster !");
+
+ fgLayers[i].InsertCluster(new AliITSRecPoint(*c));
+ }
+ clusters->Delete();
+ // add dead zone "virtual" cluster in SPD, if there is a cluster within
+ // zwindow cm from the dead zone
+ if (i<2 && AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) {
+ for (Float_t xdead = 0; xdead < AliITSRecoParam::GetSPDdetxlength(); xdead += (i+1.)*AliITSReconstructor::GetRecoParam()->GetXPassDeadZoneHits()) {
+ Int_t lab[4] = {0,0,0,detector};
+ Int_t info[3] = {0,0,i};
+ Float_t q = 0.; // this identifies virtual clusters
+ Float_t hit[5] = {xdead,
+ 0.,
+ AliITSReconstructor::GetRecoParam()->GetSigmaXDeadZoneHit2(),
+ AliITSReconstructor::GetRecoParam()->GetSigmaZDeadZoneHit2(),
+ q};
+ Bool_t local = kTRUE;
+ Double_t zwindow = AliITSReconstructor::GetRecoParam()->GetZWindowDeadZone();
+ hit[1] = fSPDdetzcentre[0]+0.5*AliITSRecoParam::GetSPDdetzlength();
+ if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
+ fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
+ hit[1] = fSPDdetzcentre[1]-0.5*AliITSRecoParam::GetSPDdetzlength();
+ if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
+ fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
+ hit[1] = fSPDdetzcentre[1]+0.5*AliITSRecoParam::GetSPDdetzlength();
+ if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
+ fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
+ hit[1] = fSPDdetzcentre[2]-0.5*AliITSRecoParam::GetSPDdetzlength();
+ if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
+ fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
+ hit[1] = fSPDdetzcentre[2]+0.5*AliITSRecoParam::GetSPDdetzlength();
+ if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
+ fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
+ hit[1] = fSPDdetzcentre[3]-0.5*AliITSRecoParam::GetSPDdetzlength();
+ if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
+ fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
+ }
+ } // "virtual" clusters in SPD
+
+ }
+ //
+ fgLayers[i].ResetRoad(); //road defined by the cluster density
+ fgLayers[i].SortClusters();
+ }
+
+ dummy.Clear();
+
+ return 0;
+}
+//------------------------------------------------------------------------
+void AliITStrackerHLT::UnloadClusters() {
+ //--------------------------------------------------------------------
+ //This function unloads ITS clusters
+ //--------------------------------------------------------------------
+ for (Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) fgLayers[i].ResetClusters();
+}
+
+
+
+//------------------------------------------------------------------------
+Int_t AliITStrackerHLT::CorrectForTPCtoITSDeadZoneMaterial(AliHLTITSTrack *t) {
+ //--------------------------------------------------------------------
+ // Correction for the material between the TPC and the ITS
+ //--------------------------------------------------------------------
+ if (t->GetX() > AliITSRecoParam::Getriw()) { // inward direction
+ if (!t->PropagateToTGeo(AliITSRecoParam::Getriw(),1)) return 0;// TPC inner wall
+ if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum
+ if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen
+ } else if (t->GetX() < AliITSRecoParam::Getrs()) { // outward direction
+ if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen
+ if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum
+ if (!t->PropagateToTGeo(AliITSRecoParam::Getriw()+0.001,1)) return 0;// TPC inner wall
+ } else {
+ printf("CorrectForTPCtoITSDeadZoneMaterial: Track is already in the dead zone !\n");
+ return 0;
+ }
+
+ return 1;
+}
+
+#include "TStopwatch.h"
+
+//------------------------------------------------------------------------
+Int_t AliITStrackerHLT::Clusters2Tracks(AliESDEvent *event) {
+ //--------------------------------------------------------------------
+ // This functions reconstructs ITS tracks
+ // The clusters must be already loaded !
+ //--------------------------------------------------------------------
+ std::cout<<"\n\n ITS starts...\n"<<std::endl;
+ TStopwatch timer;
+
+ fEsd = event; // store pointer to the esd
+
+ {/* Read ESD tracks */
+
+ Double_t pimass = TDatabasePDG::Instance()->GetParticle(211)->Mass();
+
+ for( int itr=0; itr<event->GetNumberOfTracks(); itr++ ){
+
+ AliESDtrack *esdTrack = event->GetTrack(itr);
+
+ if ((esdTrack->GetStatus()&AliESDtrack::kTPCin)==0) continue;
+ if (esdTrack->GetStatus()&AliESDtrack::kTPCout) continue;
+ if (esdTrack->GetStatus()&AliESDtrack::kITSin) continue;
+ if (esdTrack->GetKinkIndex(0)>0) continue; //kink daughter
+ AliHLTITSTrack tMI(*esdTrack);
+ AliHLTITSTrack *t = &tMI;
+
+ if (tMI.GetMass()<0.9*pimass) t->SetMass(pimass);
+ t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
+
+ if (!CorrectForTPCtoITSDeadZoneMaterial(t)) continue;
+
+ Int_t tpcLabel=t->GetLabel(); //save the TPC track label
+
+ FollowProlongationTree(t);
+ int nclu=0;
+ for(Int_t i=0; i<6; i++) {
+ if( t->GetClusterIndex(i)>=0 ) nclu++;
+ }
+ cout<<"N assigned ITS clusters = "<<nclu<<std::endl;
+ if( nclu>0 ){
+ t->SetLabel(-1);//tpcLabel);
+ t->SetFakeRatio(1.);
+ CookLabel(t,0.); //For comparison only
+ cout<<"label = "<<t->GetLabel()<<" / "<<tpcLabel<<endl;
+ TransportToX(t, 0 );
+ cout<<"\n fill track : parameters at "<<t->GetX()<<": "<< TMath::Sqrt(TMath::Abs(t->GetSigmaY2()))<<" "<< TMath::Sqrt(TMath::Abs(t->GetSigmaY2()))<<endl;
+ //t->Print();
+ UpdateESDtrack(t,AliESDtrack::kITSin);
+ }
+ }
+ } /* End Read ESD tracks */
+
+ AliHLTVertexer vertexer;
+ vertexer.SetESD( event );
+ vertexer.FindPrimaryVertex();
+ vertexer.FindV0s();
+
+
+ timer.Stop();
+ static double totalTime = 0;
+ static int nEvnts = 0;
+ totalTime+=timer.CpuTime();
+ nEvnts++;
+ std::cout<<"\n\n ITS tracker time = "<<totalTime/nEvnts<<" [s/ev] for "<<nEvnts<<" events\n\n "<<std::endl;
+ return 0;
+}
+
+
+//------------------------------------------------------------------------
+Int_t AliITStrackerHLT::PropagateBack(AliESDEvent * /*event*/) {
+ return 0;
+}
+
+//------------------------------------------------------------------------
+Int_t AliITStrackerHLT::RefitInward(AliESDEvent * /*event*/ ) {
+ return 0;
+}
+//------------------------------------------------------------------------
+AliCluster *AliITStrackerHLT::GetCluster(Int_t index) const {
+ //--------------------------------------------------------------------
+ // Return pointer to a given cluster
+ //--------------------------------------------------------------------
+ Int_t l=(index & 0xf0000000) >> 28;
+ Int_t c=(index & 0x0fffffff) >> 00;
+ return fgLayers[l].GetCluster(c);
+}
+//------------------------------------------------------------------------
+Bool_t AliITStrackerHLT::GetTrackPoint(Int_t index, AliTrackPoint& p) const {
+ //--------------------------------------------------------------------
+ // Get track space point with index i
+ //--------------------------------------------------------------------
+
+ Int_t l=(index & 0xf0000000) >> 28;
+ Int_t c=(index & 0x0fffffff) >> 00;
+ AliITSRecPoint *cl = fgLayers[l].GetCluster(c);
+ Int_t idet = cl->GetDetectorIndex();
+
+ Float_t xyz[3];
+ Float_t cov[6];
+ cl->GetGlobalXYZ(xyz);
+ cl->GetGlobalCov(cov);
+ p.SetXYZ(xyz, cov);
+ p.SetCharge(cl->GetQ());
+ p.SetDriftTime(cl->GetDriftTime());
+ AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
+ switch (l) {
+ case 0:
+ iLayer = AliGeomManager::kSPD1;
+ break;
+ case 1:
+ iLayer = AliGeomManager::kSPD2;
+ break;
+ case 2:
+ iLayer = AliGeomManager::kSDD1;
+ break;
+ case 3:
+ iLayer = AliGeomManager::kSDD2;
+ break;
+ case 4:
+ iLayer = AliGeomManager::kSSD1;
+ break;
+ case 5:
+ iLayer = AliGeomManager::kSSD2;
+ break;
+ default:
+ AliWarning(Form("Wrong layer index in ITS (%d) !",l));
+ break;
+ };
+ UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet);
+ p.SetVolumeID((UShort_t)volid);
+ return kTRUE;
+}
+//------------------------------------------------------------------------
+Bool_t AliITStrackerHLT::GetTrackPointTrackingError(Int_t index,
+ AliTrackPoint& p, const AliESDtrack *t) {
+ //--------------------------------------------------------------------
+ // Get track space point with index i
+ // (assign error estimated during the tracking)
+ //--------------------------------------------------------------------
+
+ Int_t l=(index & 0xf0000000) >> 28;
+ Int_t c=(index & 0x0fffffff) >> 00;
+ const AliITSRecPoint *cl = fgLayers[l].GetCluster(c);
+ Int_t idet = cl->GetDetectorIndex();
+
+ const AliHLTITSDetector &det=fgLayers[l].GetDetector(idet);
+
+ // tgphi and tglambda of the track in tracking frame with alpha=det.GetPhi
+ Float_t detxy[2];
+ detxy[0] = det.GetR()*TMath::Cos(det.GetPhi());
+ detxy[1] = det.GetR()*TMath::Sin(det.GetPhi());
+ Double_t alpha = t->GetAlpha();
+ Double_t xdetintrackframe = detxy[0]*TMath::Cos(alpha)+detxy[1]*TMath::Sin(alpha);
+ Float_t phi = TMath::ASin(t->GetSnpAt(xdetintrackframe,GetBz()));
+ phi += alpha-det.GetPhi();
+ Float_t tgphi = TMath::Tan(phi);
+
+ Float_t tgl = t->GetTgl(); // tgl about const along track
+ Float_t expQ = TMath::Max(0.8*t->GetTPCsignal(),30.);
+
+ Float_t errlocalx,errlocalz;
+ Bool_t addMisalErr=kFALSE;
+ AliITSClusterParam::GetError(l,cl,tgl,tgphi,expQ,errlocalx,errlocalz,addMisalErr);
+
+ Float_t xyz[3];
+ Float_t cov[6];
+ cl->GetGlobalXYZ(xyz);
+ // cl->GetGlobalCov(cov);
+ Float_t pos[3] = {0.,0.,0.};
+ AliCluster tmpcl((UShort_t)cl->GetVolumeId(),pos[0],pos[1],pos[2],errlocalx*errlocalx,errlocalz*errlocalz,0);
+ tmpcl.GetGlobalCov(cov);
+
+ p.SetXYZ(xyz, cov);
+ p.SetCharge(cl->GetQ());
+ p.SetDriftTime(cl->GetDriftTime());
+
+ AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
+ switch (l) {
+ case 0:
+ iLayer = AliGeomManager::kSPD1;
+ break;
+ case 1:
+ iLayer = AliGeomManager::kSPD2;
+ break;
+ case 2:
+ iLayer = AliGeomManager::kSDD1;
+ break;
+ case 3:
+ iLayer = AliGeomManager::kSDD2;
+ break;
+ case 4:
+ iLayer = AliGeomManager::kSSD1;
+ break;
+ case 5:
+ iLayer = AliGeomManager::kSSD2;
+ break;
+ default:
+ AliWarning(Form("Wrong layer index in ITS (%d) !",l));
+ break;
+ };
+ UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet);
+
+ p.SetVolumeID((UShort_t)volid);
+ return kTRUE;
+}
+
+
+//------------------------------------------------------------------------
+void AliITStrackerHLT::FollowProlongationTree(AliHLTITSTrack * track )
+{
+ //cout<<endl;
+ for (Int_t ilayer=5; ilayer>=0; ilayer--) {
+ //cout<<"\nLayer "<<ilayer<<endl;
+
+ AliHLTITSLayer &layer=fgLayers[ilayer];
+
+ //cout<<" shield material.. "<<endl;
+
+ // material between SSD and SDD, SDD and SPD
+ if (ilayer==3 && !CorrectForShieldMaterial(track,"SDD","inward")) continue;
+ if (ilayer==1 && !CorrectForShieldMaterial(track,"SPD","inward")) continue;
+
+ int idet;
+
+ {
+ // propagate to the layer radius
+
+ Double_t r = layer.GetR(), phi,z;
+ Double_t xToGo;
+ //cout<<" propagate to layer R= "<<r<<" .."<<endl;
+ if( !track->GetLocalXat(r,xToGo) ) continue;
+ if( !TransportToX(track, xToGo) ) continue;
+
+ // detector number
+
+ if (!track->GetPhiZat(r,phi,z)) continue;
+ idet=layer.FindDetectorIndex(phi,z);
+ //cout<<" detector number = "<<idet<<endl;
+ }
+
+
+ //cout<<" correct for the layer material .. "<<endl;
+
+ // correct for the layer material
+ {
+ Double_t trackGlobXYZ1[3];
+ if (!track->GetXYZ(trackGlobXYZ1)) continue;
+ CorrectForLayerMaterial(track,ilayer,trackGlobXYZ1,"inward");
+ }
+
+ // track outside layer acceptance in z
+
+ if( idet<0 ) continue;
+
+ // propagate to the intersection with the detector plane
+
+ //cout<<" propagate to the intersection with the detector .. "<<endl;
+
+ const AliHLTITSDetector &det=layer.GetDetector( idet );
+ if (!TransportToPhiX( track, det.GetPhi(), det.GetR() ) ) continue;
+
+ // DEFINITION OF SEARCH ROAD AND CLUSTERS SELECTION
+
+ // road in global (rphi,z) [i.e. in tracking ref. system]
+
+ Double_t zmin,zmax,ymin,ymax;
+
+ //cout<<" ComputeRoad .. "<<endl;
+ if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) continue;
+
+ //cout<<" Road: y["<<ymin<<","<<ymax<<"], z["<<zmin<<","<<zmax<<"] "<<endl;
+
+ // select clusters in road
+
+ //cout<<" SelectClusters .. "<<endl;
+ layer.SelectClusters(zmin,zmax,ymin,ymax);
+
+ // Define criteria for track-cluster association
+
+ Double_t msz = track->GetSigmaZ2() +
+ AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
+ AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
+ AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer);
+
+ Double_t msy = track->GetSigmaY2() +
+ AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
+ AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
+ AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer);
+
+ msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC();
+ msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC();
+
+ msz = 1./msz; // 1/RoadZ^2
+ msy = 1./msy; // 1/RoadY^2
+
+ //
+ // LOOP OVER ALL POSSIBLE TRACK PROLONGATIONS ON THIS LAYER
+ //
+
+ const AliITSRecPoint *cl=0;
+ Int_t clidx=-1;
+ Double_t chi2trkcl=AliITSReconstructor::GetRecoParam()->GetMaxChi2(); // init with big value
+ Bool_t deadzoneSPD=kFALSE;
+
+ // check if the road contains a dead zone
+ Bool_t noClusters = !layer.GetNextCluster(clidx,kTRUE);
+
+ Double_t dz=0.5*(zmax-zmin);
+ Double_t dy=0.5*(ymax-ymin);
+
+ Int_t dead = CheckDeadZone(track,ilayer,idet,dz,dy,noClusters);
+
+ // create a prolongation without clusters (check also if there are no clusters in the road)
+
+ if (dead==1) { // dead zone at z=0,+-7cm in SPD
+ deadzoneSPD=kTRUE;
+ }
+
+ clidx=-1;
+
+ //cout<<" loop over clusters in the road .. "<<endl;
+
+ // loop over clusters in the road
+ const AliITSRecPoint *bestCluster=0;
+ double bestChi2 = 1.e10;
+ AliHLTITSTrack bestTrack( *track );
+ int bestIdx = -1;
+ while ((cl=layer.GetNextCluster(clidx))!=0) {
+ //cout<<" cluster: "<<cl->GetX()<<" "<<cl->GetY()<<" "<<cl->GetZ()<<endl;
+ AliHLTITSTrack t(*track);
+ if (cl->GetQ()==0 && deadzoneSPD==kTRUE) continue;
+
+ Int_t idetc=cl->GetDetectorIndex();
+
+ //cout<<" cluster detector: "<<idetc<<endl;
+
+ if ( idet !=idetc ) { // new cluster's detector
+ const AliHLTITSDetector &detc=layer.GetDetector(idetc);
+ if (!TransportToPhiX( track, detc.GetPhi(),detc.GetR()) ) continue;
+ t = *track;
+ idet = idetc;
+ }
+
+ // take into account misalignment (bring track to real detector plane)
+
+ if (!TransportToX( &t, t.GetX() + cl->GetX() ) ) continue;
+ double chi2 = ( (t.GetZ()-cl->GetZ())*(t.GetZ()-cl->GetZ())*msz +
+ (t.GetY()-cl->GetY())*(t.GetY()-cl->GetY())*msy );
+ //cout<<" chi2="<<chi2<<endl;
+ if ( chi2 < bestChi2 ){
+ bestChi2 = chi2;
+ bestCluster = cl;
+ bestTrack = t;
+ bestIdx = clidx;
+ continue;
+ }
+ }
+
+ //cout<<" best chi2= "<<bestChi2<<endl;
+
+ if( bestCluster && bestChi2 <=1. ){
+
+ //cout<<" cluster found "<<endl;
+ *track = bestTrack;
+
+
+ // calculate track-clusters chi2
+ chi2trkcl = GetPredictedChi2MI(track,bestCluster,ilayer);
+ //cout<<" track-clusters chi2 = "<<chi2trkcl<<endl;
+ //cout<<" max chi2 = "<<AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)<<endl;
+
+ // chi2 cut
+ if (chi2trkcl < AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) {
+ if (bestCluster->GetQ()==0) deadzoneSPD=kTRUE; // only 1 prolongation with virtual cluster
+ //cout<<"set index.."<<endl;
+ //cout<<"set index ok"<<endl;
+ if (bestCluster->GetQ()!=0) { // real cluster
+ //cout<<" UpdateMI ... "<<endl;
+ if (!UpdateMI(track,bestCluster,chi2trkcl,(ilayer<<28)+bestIdx)) {
+ continue;
+ }
+ }
+ }
+ }
+ //cout<<" goto next layer "<<endl;
+
+ }
+}
+
+
+//------------------------------------------------------------------------
+AliHLTITSLayer & AliITStrackerHLT::GetLayer(Int_t layer) const
+{
+ //--------------------------------------------------------------------
+ //
+ //
+ return fgLayers[layer];
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+//------------------------------------------------------------------------
+void AliITStrackerHLT::CookLabel(AliHLTITSTrack *track,Float_t wrong) const {
+ //--------------------------------------------------------------------
+ //This function "cooks" a track label. If label<0, this track is fake.
+ //--------------------------------------------------------------------
+ Int_t tpcLabel=-1;
+
+ if ( track->GetESDtrack()) tpcLabel = TMath::Abs(track->GetESDtrack()->GetTPCLabel());
+
+ Int_t nwrong=0;
+ cout<<"cook label: nclu = "<<track->GetNumberOfClusters()<<endl;
+ for (Int_t i=0;i<track->GetNumberOfClusters();i++){
+ Int_t cindex = track->GetClusterIndex(i);
+ //Int_t l=(cindex & 0xf0000000) >> 28;
+ AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex);
+ Int_t isWrong=1;
+ for (Int_t ind=0;ind<3;ind++){
+ if (tpcLabel>0)
+ if (cl->GetLabel(ind)==tpcLabel) isWrong=0;
+ AliDebug(2,Form("icl %d ilab %d lab %d",i,ind,cl->GetLabel(ind)));
+ }
+ nwrong+=isWrong;
+ }
+ Int_t nclusters = track->GetNumberOfClusters();
+ if (nclusters > 0) //PH Some tracks don't have any cluster
+ track->SetFakeRatio(double(nwrong)/double(nclusters));
+ cout<<"fake ratio = "<<track->GetFakeRatio()<<endl;
+ if (tpcLabel>0){
+ if (track->GetFakeRatio()>wrong) track->SetLabel(-tpcLabel);
+ else
+ track->SetLabel(tpcLabel);
+ }
+ AliDebug(2,Form(" nls %d wrong %d label %d tpcLabel %d\n",nclusters,nwrong,track->GetLabel(),tpcLabel));
+
+}
+
+
+
+void AliITStrackerHLT::GetClusterErrors2( Int_t layer, const AliITSRecPoint *cluster, AliHLTITSTrack* track, double &err2Y, double &err2Z ) const
+{
+ Float_t erry,errz;
+ Float_t theta = track->GetTgl();
+ Float_t phi = track->GetSnp();
+ phi = TMath::Abs(phi)*TMath::Sqrt(1./((1.-phi)*(1.+phi)));
+ AliITSClusterParam::GetError(layer,cluster,theta,phi,track->GetExpQ(),erry,errz);
+ err2Y = erry*erry;
+ err2Z = errz*errz;
+}
+
+
+//------------------------------------------------------------------------
+Double_t AliITStrackerHLT::GetPredictedChi2MI(AliHLTITSTrack* track, const AliITSRecPoint *cluster,Int_t layer)
+{
+ //
+ // Compute predicted chi2
+ //
+
+ AliHLTITSTrack t(*track);
+ if (!t.Propagate( t.GetX()+cluster->GetX())) return 1000.;
+
+ Double_t err2Y,err2Z;
+ GetClusterErrors2( layer, cluster, &t, err2Y, err2Z );
+
+ Double_t chi2 = t.GetPredictedChi2(cluster->GetY(),cluster->GetZ(),err2Y,err2Z);
+
+ Float_t ny,nz;
+ Float_t theta = track->GetTgl();
+ Float_t phi = track->GetSnp();
+ phi = TMath::Abs(phi)*TMath::Sqrt(1./((1.-phi)*(1.+phi)));
+ AliITSClusterParam::GetNTeor(layer,cluster,theta,phi,ny,nz);
+ Double_t delta = cluster->GetNy()+cluster->GetNz()-nz-ny;
+ if (delta>1){
+ chi2+=0.5*TMath::Min(delta/2,2.);
+ chi2+=2.*cluster->GetDeltaProbability();
+ }
+ return chi2;
+}
+
+
+//------------------------------------------------------------------------
+void AliITStrackerHLT::SignDeltas(const TObjArray *clusterArray, Float_t vz)
+{
+ //
+ // Clusters from delta electrons?
+ //
+ Int_t entries = clusterArray->GetEntriesFast();
+ if (entries<4) return;
+ AliITSRecPoint* cluster = (AliITSRecPoint*)clusterArray->At(0);
+ Int_t layer = cluster->GetLayer();
+ if (layer>1) return;
+ Int_t index[10000];
+ Int_t ncandidates=0;
+ Float_t r = (layer>0)? 7:4;
+ //
+ for (Int_t i=0;i<entries;i++){
+ AliITSRecPoint* cl0 = (AliITSRecPoint*)clusterArray->At(i);
+ Float_t nz = 1+TMath::Abs((cl0->GetZ()-vz)/r);
+ if (cl0->GetNy()+cl0->GetNz()<=5+2*layer+nz) continue;
+ index[ncandidates] = i; //candidate to belong to delta electron track
+ ncandidates++;
+ if (cl0->GetNy()+cl0->GetNz()>9+2*layer+nz) {
+ cl0->SetDeltaProbability(1);
+ }
+ }
+ //
+ //
+ //
+ for (Int_t i=0;i<ncandidates;i++){
+ AliITSRecPoint* cl0 = (AliITSRecPoint*)clusterArray->At(index[i]);
+ if (cl0->GetDeltaProbability()>0.8) continue;
+ //
+ Int_t ncl = 0;
+ Float_t y[100],z[100],sumy,sumz,sumy2, sumyz, sumw;
+ sumy=sumz=sumy2=sumyz=sumw=0.0;
+ for (Int_t j=0;j<ncandidates;j++){
+ if (i==j) continue;
+ AliITSRecPoint* cl1 = (AliITSRecPoint*)clusterArray->At(index[j]);
+ //
+ Float_t dz = cl0->GetZ()-cl1->GetZ();
+ Float_t dy = cl0->GetY()-cl1->GetY();
+ if (TMath::Sqrt(dz*dz+dy*dy)<0.2){
+ Float_t weight = cl1->GetNy()+cl1->GetNz()-2;
+ y[ncl] = cl1->GetY();
+ z[ncl] = cl1->GetZ();
+ sumy+= y[ncl]*weight;
+ sumz+= z[ncl]*weight;
+ sumy2+=y[ncl]*y[ncl]*weight;
+ sumyz+=y[ncl]*z[ncl]*weight;
+ sumw+=weight;
+ ncl++;
+ }
+ }
+ if (ncl<4) continue;
+ Float_t det = sumw*sumy2 - sumy*sumy;
+ Float_t delta=1000;
+ if (TMath::Abs(det)>0.01){
+ Float_t z0 = (sumy2*sumz - sumy*sumyz)/det;
+ Float_t k = (sumyz*sumw - sumy*sumz)/det;
+ delta = TMath::Abs(cl0->GetZ()-(z0+k*cl0->GetY()));
+ }
+ else{
+ Float_t z0 = sumyz/sumy;
+ delta = TMath::Abs(cl0->GetZ()-z0);
+ }
+ if ( delta<0.05) {
+ cl0->SetDeltaProbability(1-20.*delta);
+ }
+ }
+}
+//------------------------------------------------------------------------
+void AliITStrackerHLT::UpdateESDtrack(AliHLTITSTrack* track, ULong_t flags) const
+{
+ //
+ // Update ESD track
+ //
+ track->UpdateESDtrack(flags);
+ AliHLTITSTrack * oldtrack = (AliHLTITSTrack*)(track->GetESDtrack()->GetITStrack());
+ if (oldtrack) delete oldtrack;
+ track->GetESDtrack()->SetITStrack(new AliHLTITSTrack(*track));
+}
+
+
+
+
+//------------------------------------------------------------------------
+void AliITStrackerHLT::BuildMaterialLUT(TString material) {
+ //--------------------------------------------------------------------
+ // Fill a look-up table with mean material
+ //--------------------------------------------------------------------
+
+ Int_t n=1000;
+ Double_t mparam[7];
+ Double_t point1[3],point2[3];
+ Double_t phi,cosphi,sinphi,z;
+ // 0-5 layers, 6 pipe, 7-8 shields
+ Double_t rmin[9]={ 3.5, 5.5,13.0,22.0,35.0,41.0, 2.0, 8.0,25.0};
+ Double_t rmax[9]={ 5.5, 8.0,17.0,26.0,41.0,47.0, 3.0,10.5,30.0};
+
+ Int_t ifirst=0,ilast=0;
+ if(material.Contains("Pipe")) {
+ ifirst=6; ilast=6;
+ } else if(material.Contains("Shields")) {
+ ifirst=7; ilast=8;
+ } else if(material.Contains("Layers")) {
+ ifirst=0; ilast=5;
+ } else {
+ Error("BuildMaterialLUT","Wrong layer name\n");
+ }
+
+ for(Int_t imat=ifirst; imat<=ilast; imat++) {
+ Double_t param[5]={0.,0.,0.,0.,0.};
+ for (Int_t i=0; i<n; i++) {
+ phi = 2.*TMath::Pi()*gRandom->Rndm();
+ cosphi = TMath::Cos(phi); sinphi = TMath::Sin(phi);
+ z = 14.*(-1.+2.*gRandom->Rndm()); // SPD barrel
+ point1[0] = rmin[imat]*cosphi;
+ point1[1] = rmin[imat]*sinphi;
+ point1[2] = z;
+ point2[0] = rmax[imat]*cosphi;
+ point2[1] = rmax[imat]*sinphi;
+ point2[2] = z;
+ AliTracker::MeanMaterialBudget(point1,point2,mparam);
+ for(Int_t j=0;j<5;j++) param[j]+=mparam[j];
+ }
+ for(Int_t j=0;j<5;j++) param[j]/=(Float_t)n;
+ if(imat<=5) {
+ fxOverX0Layer[imat] = param[1];
+ fxTimesRhoLayer[imat] = param[0]*param[4];
+ } else if(imat==6) {
+ fxOverX0Pipe = param[1];
+ fxTimesRhoPipe = param[0]*param[4];
+ } else if(imat==7) {
+ fxOverX0Shield[0] = param[1];
+ fxTimesRhoShield[0] = param[0]*param[4];
+ } else if(imat==8) {
+ fxOverX0Shield[1] = param[1];
+ fxTimesRhoShield[1] = param[0]*param[4];
+ }
+ }
+ /*
+ printf("%s\n",material.Data());
+ printf("%f %f\n",fxOverX0Pipe,fxTimesRhoPipe);
+ printf("%f %f\n",fxOverX0Shield[0],fxTimesRhoShield[0]);
+ printf("%f %f\n",fxOverX0Shield[1],fxTimesRhoShield[1]);
+ printf("%f %f\n",fxOverX0Layer[0],fxTimesRhoLayer[0]);
+ printf("%f %f\n",fxOverX0Layer[1],fxTimesRhoLayer[1]);
+ printf("%f %f\n",fxOverX0Layer[2],fxTimesRhoLayer[2]);
+ printf("%f %f\n",fxOverX0Layer[3],fxTimesRhoLayer[3]);
+ printf("%f %f\n",fxOverX0Layer[4],fxTimesRhoLayer[4]);
+ printf("%f %f\n",fxOverX0Layer[5],fxTimesRhoLayer[5]);
+ */
+ return;
+}
+
+//------------------------------------------------------------------------
+Int_t AliITStrackerHLT::CorrectForPipeMaterial(AliHLTITSTrack *t,
+ TString direction) {
+ //-------------------------------------------------------------------
+ // Propagate beyond beam pipe and correct for material
+ // (material budget in different ways according to fUseTGeo value)
+ // Add time if going outward (PropagateTo or PropagateToTGeo)
+ //-------------------------------------------------------------------
+
+ // Define budget mode:
+ // 0: material from AliITSRecoParam (hard coded)
+ // 1: material from TGeo in one step (on the fly)
+ // 2: material from lut
+ // 3: material from TGeo in one step (same for all hypotheses)
+ Int_t mode;
+ switch(fUseTGeo) {
+ case 0:
+ mode=0;
+ break;
+ case 1:
+ mode=1;
+ break;
+ case 2:
+ mode=2;
+ break;
+ case 3:
+ mode=3;
+ break;
+ case 4:
+ mode=3;
+ break;
+ default:
+ mode=0;
+ break;
+ }
+
+ Float_t dir = (direction.Contains("inward") ? 1. : -1.);
+ Double_t rToGo=(dir>0 ? AliITSRecoParam::GetrInsidePipe() : AliITSRecoParam::GetrOutsidePipe());
+ Double_t xToGo;
+ if (!t->GetLocalXat(rToGo,xToGo)) return 0;
+
+ Double_t xOverX0,x0,lengthTimesMeanDensity;
+
+ switch(mode) {
+ case 0:
+ xOverX0 = AliITSRecoParam::GetdPipe();
+ x0 = AliITSRecoParam::GetX0Be();
+ lengthTimesMeanDensity = xOverX0*x0;
+ lengthTimesMeanDensity *= dir;
+ if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
+ break;
+ case 1:
+ if (!t->PropagateToTGeo(xToGo,1)) return 0;
+ break;
+ case 2:
+ if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
+ xOverX0 = fxOverX0Pipe;
+ lengthTimesMeanDensity = fxTimesRhoPipe;
+ lengthTimesMeanDensity *= dir;
+ if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
+ break;
+ case 3:
+ double xOverX0PipeTrks, xTimesRhoPipeTrks;
+ if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0;
+ Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
+ ((1.-t->GetSnp())*(1.+t->GetSnp())));
+ xOverX0PipeTrks = TMath::Abs(xOverX0)/angle;
+ xTimesRhoPipeTrks = TMath::Abs(lengthTimesMeanDensity)/angle;
+ xOverX0 = xOverX0PipeTrks;
+ lengthTimesMeanDensity = xTimesRhoPipeTrks;
+ lengthTimesMeanDensity *= dir;
+ if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
+ break;
+ }
+
+ return 1;
+}
+//------------------------------------------------------------------------
+Int_t AliITStrackerHLT::CorrectForShieldMaterial(AliHLTITSTrack *t,
+ TString shield,
+ TString direction) {
+ //-------------------------------------------------------------------
+ // Propagate beyond SPD or SDD shield and correct for material
+ // (material budget in different ways according to fUseTGeo value)
+ // Add time if going outward (PropagateTo or PropagateToTGeo)
+ //-------------------------------------------------------------------
+
+ // Define budget mode:
+ // 0: material from AliITSRecoParam (hard coded)
+ // 1: material from TGeo in steps of X cm (on the fly)
+ // X = AliITSRecoParam::GetStepSizeTGeo()
+ // 2: material from lut
+ // 3: material from TGeo in one step (same for all hypotheses)
+ Int_t mode;
+ switch(fUseTGeo) {
+ case 0:
+ mode=0;
+ break;
+ case 1:
+ mode=1;
+ break;
+ case 2:
+ mode=2;
+ break;
+ case 3:
+ mode=3;
+ break;
+ case 4:
+ mode=3;
+ break;
+ default:
+ mode=0;
+ break;
+ }
+
+
+ Float_t dir = (direction.Contains("inward") ? 1. : -1.);
+ Double_t rToGo;
+ Int_t shieldindex=0;
+ if (shield.Contains("SDD")) { // SDDouter
+ rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(1) : AliITSRecoParam::GetrOutsideShield(1));
+ shieldindex=1;
+ } else if (shield.Contains("SPD")) { // SPDouter
+ rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(0) : AliITSRecoParam::GetrOutsideShield(0));
+ shieldindex=0;
+ } else {
+ Error("CorrectForShieldMaterial"," Wrong shield name\n");
+ return 0;
+ }
+ Double_t xToGo;
+ if (!t->GetLocalXat(rToGo,xToGo)) return 0;
+
+ Double_t xOverX0,x0,lengthTimesMeanDensity;
+ Int_t nsteps=1;
+
+ switch(mode) {
+ case 0:
+ xOverX0 = AliITSRecoParam::Getdshield(shieldindex);
+ x0 = AliITSRecoParam::GetX0shield(shieldindex);
+ lengthTimesMeanDensity = xOverX0*x0;
+ lengthTimesMeanDensity *= dir;
+ if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
+ break;
+ case 1:
+ nsteps= (Int_t)(TMath::Abs(t->GetX()-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
+ if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction
+ break;
+ case 2:
+ if(fxOverX0Shield[shieldindex]<0) BuildMaterialLUT("Shields");
+ xOverX0 = fxOverX0Shield[shieldindex];
+ lengthTimesMeanDensity = fxTimesRhoShield[shieldindex];
+ lengthTimesMeanDensity *= dir;
+ if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
+ break;
+ case 3:
+ if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0;
+ Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
+ ((1.-t->GetSnp())*(1.+t->GetSnp())));
+ double xOverX0ShieldTrks = TMath::Abs(xOverX0)/angle;
+ double xTimesRhoShieldTrks = TMath::Abs(lengthTimesMeanDensity)/angle;
+ xOverX0 = xOverX0ShieldTrks;
+ lengthTimesMeanDensity = xTimesRhoShieldTrks;
+ lengthTimesMeanDensity *= dir;
+ if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
+ break;
+ }
+
+ return 1;
+}
+//------------------------------------------------------------------------
+Int_t AliITStrackerHLT::CorrectForLayerMaterial(AliHLTITSTrack *t,
+ Int_t layerindex,
+ Double_t oldGlobXYZ[3],
+ TString direction) {
+ //-------------------------------------------------------------------
+ // Propagate beyond layer and correct for material
+ // (material budget in different ways according to fUseTGeo value)
+ // Add time if going outward (PropagateTo or PropagateToTGeo)
+ //-------------------------------------------------------------------
+
+ // Define budget mode:
+ // 0: material from AliITSRecoParam (hard coded)
+ // 1: material from TGeo in stepsof X cm (on the fly)
+ // X = AliITSRecoParam::GetStepSizeTGeo()
+ // 2: material from lut
+ // 3: material from TGeo in one step (same for all hypotheses)
+ Int_t mode;
+ switch(fUseTGeo) {
+ case 0:
+ mode=0;
+ break;
+ case 1:
+ mode=1;
+ break;
+ case 2:
+ mode=2;
+ break;
+ case 3:
+ mode=3;
+ break;
+ case 4:
+ mode=3;
+ break;
+ default:
+ mode=0;
+ break;
+ }
+
+
+ Float_t dir = (direction.Contains("inward") ? 1. : -1.);
+
+ Double_t r=fgLayers[layerindex].GetR();
+ Double_t deltar=(layerindex<2 ? 0.10*r : 0.05*r);
+
+ Double_t rToGo=TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY())-deltar*dir;
+ Double_t xToGo;
+ if (!t->GetLocalXat(rToGo,xToGo)) return 0;
+
+
+ Double_t xOverX0=0.0,x0=0.0,lengthTimesMeanDensity=0.0;
+ Int_t nsteps=1;
+
+ // back before material (no correction)
+ Double_t rOld,xOld;
+ rOld=TMath::Sqrt(oldGlobXYZ[0]*oldGlobXYZ[0]+oldGlobXYZ[1]*oldGlobXYZ[1]);
+ if (!t->GetLocalXat(rOld,xOld)) return 0;
+ if (!TransportToX( t, xOld)) return 0;
+
+ switch(mode) {
+ case 0:
+ xOverX0 = fgLayers[layerindex].GetThickness(t->GetY(),t->GetZ(),x0);
+ lengthTimesMeanDensity = xOverX0*x0;
+ lengthTimesMeanDensity *= dir;
+ // Bring the track beyond the material
+ if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
+ break;
+ case 1:
+ nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
+ if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction
+ break;
+ case 2:
+ if(fxOverX0Layer[layerindex]<0) BuildMaterialLUT("Layers");
+ xOverX0 = fxOverX0Layer[layerindex];
+ lengthTimesMeanDensity = fxTimesRhoLayer[layerindex];
+ lengthTimesMeanDensity *= dir;
+ // Bring the track beyond the material
+ if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
+ break;
+ case 3:
+ nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
+ if (!t->PropagateToTGeo(xToGo,nsteps,xOverX0,lengthTimesMeanDensity)) return 0;
+ Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
+ ((1.-t->GetSnp())*(1.+t->GetSnp())));
+ double xOverX0LayerTrks = TMath::Abs(xOverX0)/angle;
+ double xTimesRhoLayerTrks = TMath::Abs(lengthTimesMeanDensity)/angle;
+ xOverX0 = xOverX0LayerTrks;
+ lengthTimesMeanDensity = xTimesRhoLayerTrks;
+ lengthTimesMeanDensity *= dir;
+ if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
+ break;
+ }
+
+
+ return 1;
+}
+
+
+//------------------------------------------------------------------------
+Int_t AliITStrackerHLT::CheckDeadZone(AliHLTITSTrack *track,
+ Int_t ilayer,Int_t idet,
+ Double_t dz,Double_t dy,
+ Bool_t noClusters) const {
+ //-----------------------------------------------------------------
+ // This method is used to decide whether to allow a prolongation
+ // without clusters, because there is a dead zone in the road.
+ // In this case the return value is > 0:
+ // return 1: dead zone at z=0,+-7cm in SPD
+ // return 2: all road is "bad" (dead or noisy) from the OCDB
+ // return 3: something "bad" (dead or noisy) from the OCDB
+ //-----------------------------------------------------------------
+
+ // check dead zones at z=0,+-7cm in the SPD
+ if (ilayer<2 && !AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) {
+ Double_t zmindead[3]={fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength(),
+ fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength(),
+ fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength()};
+ Double_t zmaxdead[3]={fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
+ fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
+ fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength()};
+ for (Int_t i=0; i<3; i++)
+ if (track->GetZ()-dz<zmaxdead[i] && track->GetZ()+dz>zmindead[i]) {
+ AliDebug(2,Form("crack SPD %d",ilayer));
+ return 1;
+ }
+ }
+
+ // check bad zones from OCDB
+ if (!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return 0;
+
+ if (idet<0) return 0;
+
+ AliHLTITSDetector &det=fgLayers[ilayer].GetDetector(idet);
+
+ Int_t detType=-1;
+ Float_t detSizeFactorX=0.0001,detSizeFactorZ=0.0001;
+ if (ilayer==0 || ilayer==1) { // ---------- SPD
+ detType = 0;
+ } else if (ilayer==2 || ilayer==3) { // ---------- SDD
+ detType = 1;
+ detSizeFactorX *= 2.;
+ } else if (ilayer==4 || ilayer==5) { // ---------- SSD
+ detType = 2;
+ }
+ AliITSsegmentation *segm = (AliITSsegmentation*)fkDetTypeRec->GetSegmentationModel(detType);
+ if (detType==2) segm->SetLayer(ilayer+1);
+ Float_t detSizeX = detSizeFactorX*segm->Dx();
+ Float_t detSizeZ = detSizeFactorZ*segm->Dz();
+
+ // check if the road overlaps with bad chips
+ Float_t xloc,zloc;
+ LocalModuleCoord(ilayer,idet,track,xloc,zloc);
+ Float_t zlocmin = zloc-dz;
+ Float_t zlocmax = zloc+dz;
+ Float_t xlocmin = xloc-dy;
+ Float_t xlocmax = xloc+dy;
+ Int_t chipsInRoad[100];
+
+ // check if road goes out of detector
+ Bool_t touchNeighbourDet=kFALSE;
+ if (TMath::Abs(xlocmin)>0.5*detSizeX) {xlocmin=-0.5*detSizeX; touchNeighbourDet=kTRUE;}
+ if (TMath::Abs(xlocmax)>0.5*detSizeX) {xlocmax=+0.5*detSizeX; touchNeighbourDet=kTRUE;}
+ if (TMath::Abs(zlocmin)>0.5*detSizeZ) {zlocmin=-0.5*detSizeZ; touchNeighbourDet=kTRUE;}
+ if (TMath::Abs(zlocmax)>0.5*detSizeZ) {zlocmax=+0.5*detSizeZ; touchNeighbourDet=kTRUE;}
+ AliDebug(2,Form("layer %d det %d zmim zmax %f %f xmin xmax %f %f %f %f",ilayer,idet,zlocmin,zlocmax,xlocmin,xlocmax,detSizeZ,detSizeX));
+
+ // check if this detector is bad
+ if (det.IsBad()) {
+ AliDebug(2,Form("lay %d bad detector %d",ilayer,idet));
+ if(!touchNeighbourDet) {
+ return 2; // all detectors in road are bad
+ } else {
+ return 3; // at least one is bad
+ }
+ }
+
+ Int_t nChipsInRoad = segm->GetChipsInLocalWindow(chipsInRoad,zlocmin,zlocmax,xlocmin,xlocmax);
+ AliDebug(2,Form("lay %d nChipsInRoad %d",ilayer,nChipsInRoad));
+ if (!nChipsInRoad) return 0;
+
+ Bool_t anyBad=kFALSE,anyGood=kFALSE;
+ for (Int_t iCh=0; iCh<nChipsInRoad; iCh++) {
+ if (chipsInRoad[iCh]<0 || chipsInRoad[iCh]>det.GetNChips()-1) continue;
+ AliDebug(2,Form(" chip %d bad %d",chipsInRoad[iCh],(Int_t)det.IsChipBad(chipsInRoad[iCh])));
+ if (det.IsChipBad(chipsInRoad[iCh])) {
+ anyBad=kTRUE;
+ } else {
+ anyGood=kTRUE;
+ }
+ }
+
+ if (!anyGood) {
+ if(!touchNeighbourDet) {
+ AliDebug(2,"all bad in road");
+ return 2; // all chips in road are bad
+ } else {
+ return 3; // at least a bad chip in road
+ }
+ }
+
+ if (anyBad) {
+ AliDebug(2,"at least a bad in road");
+ return 3; // at least a bad chip in road
+ }
+
+
+ if (!AliITSReconstructor::GetRecoParam()->GetUseSingleBadChannelsFromOCDB()
+ || ilayer==4 || ilayer==5 // SSD
+ || !noClusters) return 0;
+
+ // There are no clusters in road: check if there is at least
+ // a bad SPD pixel or SDD anode
+
+ Int_t idetInITS=idet;
+ for(Int_t l=0;l<ilayer;l++) idetInITS+=AliITSgeomTGeo::GetNLadders(l+1)*AliITSgeomTGeo::GetNDetectors(l+1);
+
+ if (fITSChannelStatus->AnyBadInRoad(idetInITS,zlocmin,zlocmax,xlocmin,xlocmax)) {
+ AliDebug(2,Form("Bad channel in det %d of layer %d\n",idet,ilayer));
+ return 3;
+ }
+ //if (fITSChannelStatus->FractionOfBadInRoad(idet,zlocmin,zlocmax,xlocmin,xlocmax) > AliITSReconstructor::GetRecoParam()->GetMinFractionOfBadInRoad()) return 3;
+
+ return 0;
+}
+//------------------------------------------------------------------------
+Bool_t AliITStrackerHLT::LocalModuleCoord(Int_t ilayer,Int_t idet,
+ const AliHLTITSTrack *track,
+ Float_t &xloc,Float_t &zloc) const {
+ //-----------------------------------------------------------------
+ // Gives position of track in local module ref. frame
+ //-----------------------------------------------------------------
+
+ xloc=0.;
+ zloc=0.;
+
+ if(idet<0) return kFALSE;
+
+ Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6
+
+ Int_t lad = Int_t(idet/ndet) + 1;
+
+ Int_t det = idet - (lad-1)*ndet + 1;
+
+ Double_t xyzGlob[3],xyzLoc[3];
+
+ AliHLTITSDetector &detector = fgLayers[ilayer].GetDetector(idet);
+ // take into account the misalignment: xyz at real detector plane
+ if(!track->GetXYZAt(detector.GetRmisal(),GetBz(),xyzGlob)) return kFALSE;
+
+ if(!AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,det,xyzGlob,xyzLoc)) return kFALSE;
+
+ xloc = (Float_t)xyzLoc[0];
+ zloc = (Float_t)xyzLoc[2];
+
+ return kTRUE;
+}
+
+//------------------------------------------------------------------------
+Bool_t AliITStrackerHLT::ComputeRoad(AliHLTITSTrack* track,Int_t ilayer,Int_t idet,Double_t &zmin,Double_t &zmax,Double_t &ymin,Double_t &ymax) const {
+ //--------------------------------------------------------------------
+ // This function computes the rectangular road for this track
+ //--------------------------------------------------------------------
+
+
+ AliHLTITSDetector &det = fgLayers[ilayer].GetDetector(idet);
+ // take into account the misalignment: propagate track to misaligned detector plane
+ if (!TransportToPhiX( track, det.GetPhi(),det.GetRmisal() ) ) return kFALSE;
+
+ Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
+ TMath::Sqrt(track->GetSigmaZ2() +
+ AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
+ AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
+ AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
+ Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()*
+ TMath::Sqrt(track->GetSigmaY2() +
+ AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
+ AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
+ AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
+
+ // track at boundary between detectors, enlarge road
+ Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidth();
+ if ( (track->GetY()-dy < det.GetYmin()+boundaryWidth) ||
+ (track->GetY()+dy > det.GetYmax()-boundaryWidth) ||
+ (track->GetZ()-dz < det.GetZmin()+boundaryWidth) ||
+ (track->GetZ()+dz > det.GetZmax()-boundaryWidth) ) {
+ Float_t tgl = TMath::Abs(track->GetTgl());
+ if (tgl > 1.) tgl=1.;
+ Double_t deltaXNeighbDets=AliITSRecoParam::GetDeltaXNeighbDets();
+ dz = TMath::Sqrt(dz*dz+deltaXNeighbDets*deltaXNeighbDets*tgl*tgl);
+ Float_t snp = TMath::Abs(track->GetSnp());
+ if (snp > AliITSReconstructor::GetRecoParam()->GetMaxSnp()) return kFALSE;
+ dy = TMath::Sqrt(dy*dy+deltaXNeighbDets*deltaXNeighbDets*snp*snp);
+ } // boundary
+
+ // add to the road a term (up to 2-3 mm) to deal with misalignments
+ dy = TMath::Sqrt(dy*dy + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal());
+ dz = TMath::Sqrt(dz*dz + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal());
+
+ Double_t r = fgLayers[ilayer].GetR();
+ zmin = track->GetZ() - dz;
+ zmax = track->GetZ() + dz;
+ ymin = track->GetY() + r*det.GetPhi() - dy;
+ ymax = track->GetY() + r*det.GetPhi() + dy;
+
+ // bring track back to idead detector plane
+ if (!TransportToPhiX( track, det.GetPhi(),det.GetR())) return kFALSE;
+
+ return kTRUE;
+}
--- /dev/null
+#ifndef ALIITSTRACKERHLT_H
+#define ALIITSTRACKERHLT_H
+/* Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+
+
+class TTree;
+class TTreeSRedirector;
+class AliESDEvent;
+
+
+class AliITSChannelStatus;
+class AliITSDetTypeRec;
+#include "AliHLTITSTrack.h"
+#include "AliHLTITSDetector.h"
+#include "AliHLTITSLayer.h"
+
+#include <TObjArray.h>
+
+#include "AliITSRecPoint.h"
+#include "AliTracker.h"
+
+
+//-------------------------------------------------------------------------
+class AliITStrackerHLT : public AliTracker {
+public:
+ Bool_t TransportToX( AliExternalTrackParam *t, double x ) const;
+ Bool_t TransportToPhiX( AliExternalTrackParam *t, double phi, double x ) const;
+ Bool_t UpdateMy( AliExternalTrackParam *t, double y, double z, double err2y, double err2z ) const;
+ void GetClusterErrors2( Int_t layer, const AliITSRecPoint *cluster, AliHLTITSTrack* track, double &err2Y, double &err2Z ) const ;
+
+ AliITStrackerHLT();
+ AliITStrackerHLT(const Char_t *geom);
+ virtual ~AliITStrackerHLT();
+ AliCluster *GetCluster(Int_t index) const;
+ virtual Bool_t GetTrackPoint(Int_t index, AliTrackPoint& p) const;
+ virtual Bool_t GetTrackPointTrackingError(Int_t index,
+ AliTrackPoint& p, const AliESDtrack *t);
+ AliITSRecPoint *GetClusterLayer(Int_t layn, Int_t ncl) const
+ {return fgLayers[layn].GetCluster(ncl);}
+ Int_t GetNumberOfClustersLayer(Int_t layn) const
+ {return fgLayers[layn].GetNumberOfClusters();}
+ Int_t LoadClusters(TTree *cf);
+ void UnloadClusters();
+
+ Int_t Clusters2Tracks(AliESDEvent *event);
+ Int_t PropagateBack(AliESDEvent *event);
+ Int_t RefitInward(AliESDEvent *event);
+
+ void SetLayersNotToSkip(const Int_t *l);
+
+ Double_t GetPredictedChi2MI(AliHLTITSTrack* track, const AliITSRecPoint *cluster,Int_t layer);
+ Int_t UpdateMI(AliHLTITSTrack* track, const AliITSRecPoint* cl,Double_t chi2,Int_t layer) const;
+ void SetDetTypeRec(const AliITSDetTypeRec *detTypeRec) {fkDetTypeRec = detTypeRec; ReadBadFromDetTypeRec(); }
+
+ TTreeSRedirector *GetDebugStreamer() {return fDebugStreamer;}
+ static Int_t CorrectForTPCtoITSDeadZoneMaterial(AliHLTITSTrack *t);
+
+
+ AliHLTITSLayer & GetLayer(Int_t layer) const;
+ AliHLTITSDetector & GetDetector(Int_t layer, Int_t n) const {return GetLayer(layer).GetDetector(n); }
+
+ void FollowProlongationTree(AliHLTITSTrack * otrack);
+
+protected:
+ Bool_t ComputeRoad(AliHLTITSTrack* track,Int_t ilayer,Int_t idet,Double_t &zmin,Double_t &zmax,Double_t &ymin,Double_t &ymax) const;
+
+
+ void CookLabel(AliKalmanTrack *t,Float_t wrong) const;
+ void CookLabel(AliHLTITSTrack *t,Float_t wrong) const;
+
+ void SignDeltas(const TObjArray *clusterArray, Float_t zv);
+ void BuildMaterialLUT(TString material);
+
+ Int_t CorrectForPipeMaterial(AliHLTITSTrack *t, TString direction="inward");
+ Int_t CorrectForShieldMaterial(AliHLTITSTrack *t, TString shield, TString direction="inward");
+ Int_t CorrectForLayerMaterial(AliHLTITSTrack *t, Int_t layerindex, Double_t oldGlobXYZ[3], TString direction="inward");
+ void UpdateESDtrack(AliHLTITSTrack* track, ULong_t flags) const;
+ void ReadBadFromDetTypeRec();
+
+ Int_t CheckDeadZone(AliHLTITSTrack *track,Int_t ilayer,Int_t idet,Double_t dz,Double_t dy,Bool_t noClusters=kFALSE) const;
+ Bool_t LocalModuleCoord(Int_t ilayer,Int_t idet,const AliHLTITSTrack *track,
+ Float_t &xloc,Float_t &zloc) const;
+// method to be used for Plane Efficiency evaluation
+
+ //
+
+ static AliHLTITSLayer fgLayers[AliITSgeomTGeo::kNLayers];// ITS layers
+
+ AliESDEvent * fEsd; //! pointer to the ESD event
+ Double_t fSPDdetzcentre[4]; // centres of SPD modules in z
+
+ Int_t fUseTGeo; // use TGeo to get material budget
+
+ Float_t fxOverX0Pipe; // material budget
+ Float_t fxTimesRhoPipe; // material budget
+ Float_t fxOverX0Shield[2]; // material budget
+ Float_t fxTimesRhoShield[2]; // material budget
+ Float_t fxOverX0Layer[6]; // material budget
+ Float_t fxTimesRhoLayer[6]; // material budget
+
+ TTreeSRedirector *fDebugStreamer; //!debug streamer
+ AliITSChannelStatus *fITSChannelStatus;//! bitmaps with channel status for SPD and SDD
+ const AliITSDetTypeRec *fkDetTypeRec; //! ITS det type rec, from AliITSReconstructor
+
+private:
+ AliITStrackerHLT(const AliITStrackerHLT &tracker);
+ AliITStrackerHLT & operator=(const AliITStrackerHLT &tracker);
+};
+
+
+
+
+/////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////
+
+
+
+
+
+inline void AliITStrackerHLT::CookLabel(AliKalmanTrack *t,Float_t wrong) const {
+ //--------------------------------------------------------------------
+ //This function "cooks" a track label. If label<0, this track is fake.
+ //--------------------------------------------------------------------
+ Int_t tpcLabel=t->GetLabel();
+ if (tpcLabel<0) return;
+ AliTracker::CookLabel(t,wrong);
+ if (tpcLabel!=TMath::Abs(t->GetLabel())){
+ t->SetFakeRatio(1.);
+ }
+ if (tpcLabel !=t->GetLabel()) {
+ t->SetLabel(-tpcLabel);
+ }
+}
+
+
+
+#endif
AliHLTITSAgent.h\
AliHLTITSClusterFinderSPDComponent.h\
AliHLTITSClusterFinderSSDComponent.h\
- AliHLTITSCompressRawDataSDDComponent.h
+ AliHLTITSCompressRawDataSDDComponent.h \
+ tracking/AliITStrackerHLT.h \
+ tracking/AliHLTITSDetector.h \
+ tracking/AliHLTITSLayer.h \
+ tracking/AliHLTITSTrack.h \
+ tracking/AliHLTVertexer.h
MODULE_SRCS= $(CLASS_HDRS:.h=.cxx)
MODULE_DHDR:=
-EINCLUDE := HLT/BASE HLT/ITS HLT/MUON/src TPC ITS MUON STEER RAW
+EINCLUDE := HLT/BASE HLT/ITS HLT/ITS/tracking HLT/MUON/src TPC ITS MUON STEER RAW
LIBRARY_DEP := -lHLTbase -lAliHLTUtil -lRAWDatarec -lRAWDatabase -lITSrec -lITSbase -lESD -lSTEER -lSTEERBase -L$(shell root-config --libdir) -lEG
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff