* See cxx source for full Copyright notice */
#include "AliTracker.h"
+#include "TObjArray.h"
class TFile;
-class TParticle;
-class TParticlePDG;
-class TObjArray;
+class TTree;
+class TParticle;class TParticlePDG;
class AliTRDgeometry;
-class AliTRDparameter;
class AliTRDtrack;
+class AliTRDtracklet;
class AliTRDcluster;
-class AliTRDmcTrack;
+class AliTRDseed;
+class AliESD;
+class TTreeSRedirector;
-const unsigned kMAX_LAYERS_PER_SECTOR = 1000;
-const unsigned kMAX_TIME_BIN_INDEX = 216; // (30 drift + 6 ampl) * 6 planes
-const unsigned kMAX_CLUSTER_PER_TIME_BIN = 3500;
-const unsigned kZONES = 5;
-const Int_t kTRACKING_SECTORS = 18;
+///////////////////////////////////////////////////////////////////////////////
+// //
+// The standard TRD tracker //
+// Based on Kalman filltering approach //
+// //
+///////////////////////////////////////////////////////////////////////////////
class AliTRDtracker : public AliTracker {
public:
- AliTRDtracker():AliTracker() {}
- AliTRDtracker(const TFile *in);
- ~AliTRDtracker();
+ enum { kMaxLayersPerSector = 1000
+ , kMaxTimeBinIndex = 216
+ , kMaxClusterPerTimeBin = 7000
+ , kZones = 5
+ , kTrackingSectors = 18 };
- Int_t Clusters2Tracks(const TFile *in, TFile *out);
- Int_t PropagateBack(const TFile *in, TFile *out);
- AliCluster *GetCluster(Int_t index) const { return NULL; };
+ AliTRDtracker();
+ AliTRDtracker(const TFile *in);
+ virtual ~AliTRDtracker();
+
+ static Int_t Freq(Int_t n, const Int_t *inlist, Int_t *outlist, Bool_t down);
+ Int_t Clusters2Tracks(AliESD* event);
+ Int_t PropagateBack(AliESD* event);
+ Int_t RefitInward(AliESD* event);
+
+ // transformation
+ Int_t LocalToGlobalID(Int_t lid);
+ Int_t GlobalToLocalID(Int_t gid);
+ Bool_t Transform(AliTRDcluster * cluster);
+ //
+ Int_t LoadClusters(TTree *cTree);
+ void UnloadClusters();
+ AliCluster *GetCluster(Int_t index) const { if (index >= fNclusters) return NULL;
+ return (AliCluster*) fClusters->UncheckedAt(index); };
+ Bool_t GetTrackPoint(Int_t index, AliTrackPoint& p) const;
virtual void CookLabel(AliKalmanTrack *t,Float_t wrong) const;
virtual void UseClusters(const AliKalmanTrack *t, Int_t from=0) const;
- void SetEventNumber(Int_t event) { fEvent = event; }
void SetAddTRDseeds() { fAddTRDseeds = kTRUE; }
+ void SetNoTilt() { fNoTilt = kTRUE; }
+
+ Double_t GetTiltFactor(const AliTRDcluster* c);
- void ReadClusters(TObjArray *array, const Char_t *filename);
- Int_t CookSectorIndex(Int_t gs) { return kTRACKING_SECTORS - 1 - gs; }
-
-
- Float_t GetSeedGap() const {return fSeedGap;}
- Int_t GetMaxGap() const {return fMaxGap;}
- Int_t GetTimeBinsPerPlane() const {return fTimeBinsPerPlane;}
- Float_t GetSeedStep() const {return fSeedStep;}
- Float_t GetSeedDepth() const {return fSeedDepth;}
- Float_t GetSkipDepth() const {return fSkipDepth;}
- Double_t GetMaxChi2() const {return fMaxChi2;}
- Float_t GetMaxSeedC() const {return fMaxSeedC;}
- Float_t GetMaxSeedTan() const {return fMaxSeedTan;}
- Double_t GetSeedErrorSY() const {return fSeedErrorSY;}
- Double_t GetSeedErrorSY3() const {return fSeedErrorSY3;}
- Double_t GetSeedErrorSZ() const {return fSeedErrorSZ;}
- Float_t GetLabelFraction() const {return fLabelFraction;}
- Float_t GetWideRoad() const {return fWideRoad;}
-
- Float_t GetMinClustersInTrack() const {return fMinClustersInTrack;}
- Float_t GetMinClustersInSeed() const {return fMinClustersInSeed;}
- Float_t GetMaxSeedDeltaZ() const {return fMaxSeedDeltaZ;}
- Float_t GetMaxSeedVertexZ() const {return fMaxSeedVertexZ;}
+ Int_t ReadClusters(TObjArray *array, TTree *in) const;
+ Int_t CookSectorIndex(Int_t gs) const { return kTrackingSectors - 1 - gs; }
+ AliTRDcluster * GetCluster(AliTRDtrack * track, Int_t plane, Int_t timebin, UInt_t &index);
+ Int_t GetLastPlane(AliTRDtrack * track); //return last updated plane
+ Int_t FindClusters(Int_t sector, Int_t t0, Int_t t1, AliTRDtrack *track
+ , Int_t *clusters, AliTRDtracklet& tracklet);
+
+ Int_t GetTimeBinsPerPlane() const { return fTimeBinsPerPlane; }
+ Double_t GetMaxChi2() const { return fgkMaxChi2; }
+ Float_t GetLabelFraction() const { return fgkLabelFraction; }
+ Float_t GetMinClustersInTrack() const { return fgkMinClustersInTrack; }
// x <-> timebin conversions useful in analysis macros
- Double_t GetX(Int_t sec, Int_t plane, Int_t local_tb) const;
- Double_t GetX(Int_t sec, Int_t pl) const {
- return fTrSec[sec]->GetLayer(pl)->GetX(); }
- Int_t GetGlobalTimeBin(Int_t sec, Int_t plane, Int_t local_tb) const {
- return fTrSec[sec]->CookTimeBinIndex(plane,local_tb); }
- Double_t GetLayerNumber(Int_t sec, Double_t x) const {
- return fTrSec[sec]->GetLayerNumber(x); }
+ Double_t GetX(Int_t sec, Int_t plane, Int_t localTB) const;
+ Double_t GetX(Int_t sec, Int_t pl) const
+ { return fTrSec[sec]->GetLayer(pl)->GetX(); }
+ Int_t GetGlobalTimeBin(Int_t sec, Int_t plane, Int_t localTB) const
+ { return fTrSec[sec]->CookTimeBinIndex(plane,localTB); }
+ Double_t GetLayerNumber(Int_t sec, Double_t x) const
+ { return fTrSec[sec]->GetLayerNumber(x); }
+
+ protected:
+
+ class AliTRDpropagationLayer {
- public:
- class AliTRDpropagationLayer {
// ***************** internal class *******************
public:
+
AliTRDpropagationLayer(Double_t x, Double_t dx, Double_t rho,
- Double_t x0, Int_t tb_index);
+ Double_t x0, Int_t tbIndex, Int_t plane);
- ~AliTRDpropagationLayer() {
- if(fTimeBinIndex >= 0) { delete[] fClusters; delete[] fIndex; }
- }
- void InsertCluster(AliTRDcluster*, UInt_t);
+ ~AliTRDpropagationLayer() { if(fTimeBinIndex >= 0) { delete[] fClusters; delete[] fIndex; }}
+
+ void InsertCluster(AliTRDcluster *c, UInt_t index);
operator Int_t() const {return fN;}
AliTRDcluster* operator[](Int_t i) {return fClusters[i];}
UInt_t GetIndex(Int_t i) const {return fIndex[i];}
Double_t GetX() const { return fX; }
Double_t GetdX() const { return fdX; }
- Double_t GetRho() const { return fRho; }
- Double_t GetX0() const { return fX0; }
Int_t GetTimeBinIndex() const { return fTimeBinIndex; }
- void GetPropagationParameters(Double_t y, Double_t z,
- Double_t &dx, Double_t &rho, Double_t &x0,
- Bool_t &lookForCluster) const;
- Int_t Find(Double_t y) const;
+ Int_t GetPlane() const { return fPlane;}
+ Int_t Find(Float_t y) const;
+ Int_t FindNearestCluster(Float_t y, Float_t z, Float_t maxroad, Float_t maxroadz) const;
void SetZmax(Int_t cham, Double_t center, Double_t w)
{ fZc[cham] = center; fZmax[cham] = w; }
- void SetYmax(Double_t w) { fYmax = w; }
+ void SetZ(Double_t* center, Double_t *w, Double_t *wsensitive);
+ void SetHoles(Bool_t* holes);
+ void SetYmax(Double_t w, Double_t wsensitive) { fYmax = w; fYmaxSensitive = wsensitive; }
Double_t GetYmax() const { return fYmax; }
Double_t GetZmax(Int_t c) const { return fZmax[c]; }
Double_t GetZc(Int_t c) const { return fZc[c]; }
void SetHole(Double_t Zmax, Double_t Ymax,
- Double_t rho = 1.29e-3, Double_t x0 = 36.66,
- Double_t Yc = 0, Double_t Zc = 0);
-
- void Clear() {for(Int_t i=0; i<fN; i++) fClusters[i] = NULL; fN = 0;}
-
+ Double_t rho = 1.29e-3, Double_t x0 = 36.66,
+ Double_t Yc = 0, Double_t Zc = 0);
+
+ Bool_t IsSensitive() const {return (fTimeBinIndex>=0)? kTRUE: kFALSE;}
+
+ void Clear() {for(Int_t i=0; i<fN; i++) fClusters[i] = NULL; fN = 0;}
+ Bool_t IsHole(Int_t zone) const { return fIsHole[zone];}
+
private:
- Int_t fN;
- AliTRDcluster **fClusters; // array of pointers to clusters
- UInt_t *fIndex; // array of cluster indexes
- Double_t fX; // x coordinate of the middle plane
- Double_t fdX; // radial thickness of the time bin
- Double_t fRho; // default density of the material
- Double_t fX0; // default radiation length
- Int_t fTimeBinIndex; // plane * F(local_tb)
- Double_t fZc[kZONES]; // Z position of the center for 5 active areas
- Double_t fZmax[kZONES]; // half of active area length in Z
- Double_t fYmax; // half of active area length in Y
-
- Bool_t fHole; // kTRUE if there is a hole in the layer
- Double_t fHoleZc; // Z of the center of the hole
- Double_t fHoleZmax; // half of the hole length in Z
- Double_t fHoleYc; // Y of the center of the hole
- Double_t fHoleYmax; // half of the hole length in Y
- Double_t fHoleRho; // density of the gas in the hole
- Double_t fHoleX0; // radiation length of the gas in the hole
- };
-
- class AliTRDtrackingSector {
+ Int_t fN; // this is fN
+ Int_t fSec; // sector mumber
+ AliTRDcluster **fClusters; // array of pointers to clusters
+ UInt_t *fIndex; // array of cluster indexes
+ Double_t fX; // x coordinate of the middle plane
+ Double_t fdX; // radial thickness of the time bin
+ Double_t fRho; // default density of the material
+ Double_t fX0; // default radiation length
+ Int_t fTimeBinIndex; // plane * F(local_tb)
+ Int_t fPlane; // plane number
+ Double_t fZc[kZones]; // Z position of the center for 5 active areas
+ Double_t fZmax[kZones]; // half of active area length in Z
+ Double_t fZmaxSensitive[kZones]; // sensitive area for detection Z
+ Bool_t fIsHole[kZones]; // is hole in given sector
+ Double_t fYmax; // half of active area length in Y
+ Double_t fYmaxSensitive; // half of active area length in Y
+
+ Bool_t fHole; // kTRUE if there is a hole in the layer
+ Double_t fHoleZc; // Z of the center of the hole
+ Double_t fHoleZmax; // half of the hole length in Z
+ Double_t fHoleYc; // Y of the center of the hole
+ Double_t fHoleYmax; // half of the hole length in Y
+ Double_t fHoleRho; // density of the gas in the hole
+ Double_t fHoleX0; // radiation length of the gas in the hole
+
+ };
+
+ class AliTRDtrackingSector {
+
public:
- AliTRDtrackingSector(AliTRDgeometry* geo, Int_t gs, AliTRDparameter* par);
+
+ AliTRDtrackingSector(AliTRDgeometry* geo, Int_t gs);
~AliTRDtrackingSector() { for(Int_t i=0; i<fN; i++) delete fLayers[i]; }
+
Int_t GetNumberOfLayers() const { return fN; }
Int_t GetNumberOfTimeBins() const;
Double_t GetX(Int_t pl) const { return fLayers[pl]->GetX(); }
Int_t GetInnerTimeBin() const;
Int_t GetOuterTimeBin() const;
Int_t GetLayerNumber(Int_t tb) const {return fTimeBinIndex[tb];}
- Float_t GetTzeroShift() const { return fTzeroShift; }
Int_t Find(Double_t x) const;
void InsertLayer(AliTRDpropagationLayer* pl);
+
// AliTRDpropagationLayer* operator[](Int_t i) { return fLayers[i]; }
AliTRDpropagationLayer* GetLayer(Int_t i) { return fLayers[i]; }
- Int_t CookTimeBinIndex(Int_t plane, Int_t local_tb) const;
+ Int_t CookTimeBinIndex(Int_t plane, Int_t localTB) const;
private:
- Int_t fN; // total number of layers
- AliTRDgeometry *fGeom;
- AliTRDparameter *fPar;
- AliTRDpropagationLayer *fLayers[kMAX_LAYERS_PER_SECTOR];
- Int_t fTimeBinIndex[kMAX_TIME_BIN_INDEX];
- Float_t fTzeroShift; // T0 shift in cm
- Int_t fGeomSector; // sector # in AliTRDgeometry
- };
-
- private:
- void LoadEvent();
- void UnloadEvent();
-
- virtual void MakeSeeds(Int_t inner, Int_t outer, Int_t turn);
-
- Int_t FollowProlongation(AliTRDtrack& t, Int_t rf);
- Int_t FollowBackProlongation(AliTRDtrack& t);
-
- Int_t PropagateToTPC(AliTRDtrack& t);
- Int_t PropagateToOuterPlane(AliTRDtrack& t, Double_t x);
-
- Int_t WriteTracks();
- void ReadClusters(TObjArray *array, const TFile *in = 0);
-
- void SetSY2corr(Float_t w) {fSY2corr = w;}
- void SetSZ2corr(Float_t w) {fSZ2corr = w;}
- Double_t ExpectedSigmaY2(Double_t r, Double_t tgl, Double_t pt);
- Double_t ExpectedSigmaZ2(Double_t r, Double_t tgl);
-
-
- protected:
-
- Int_t fEvent; // Event number
-
- AliTRDgeometry *fGeom; // Pointer to TRD geometry
- AliTRDparameter *fPar;
-
- AliTRDtrackingSector *fTrSec[kTRACKING_SECTORS];
- // array of tracking sectors;
+ Int_t fN; // total number of layers
+ AliTRDgeometry *fGeom; // geometry
+ AliTRDpropagationLayer *fLayers[kMaxLayersPerSector]; // layers
+ Int_t fTimeBinIndex[kMaxTimeBinIndex]; // time bin index
+ Int_t fGeomSector; // sector # in AliTRDgeometry
+
+ };
+
+ AliTRDgeometry *fGeom; // Pointer to TRD geometry
+ AliTRDtrackingSector *fTrSec[kTrackingSectors]; // array of tracking sectors;
+ Int_t fNclusters; // Number of clusters in TRD
+ TObjArray *fClusters; // List of clusters for all sectors
+ Int_t fNseeds; // Number of track seeds
+ TObjArray *fSeeds; // List of track seeds
+ Int_t fNtracks; // Number of reconstructed tracks
+ TObjArray *fTracks; // List of reconstructed tracks
+ Int_t fTimeBinsPerPlane; // timebins per plane in track prolongation
+
+ static const Double_t fgkMaxChi2; // max increment in track chi2
+ static const Float_t fgkMinClustersInTrack; // min number of clusters in track
+ static const Float_t fgkLabelFraction; // min fraction of same label
+ static const Double_t fgkMaxSnp; // maximal snp for tracking
+ static const Double_t fgkMaxStep; // maximal step for tracking
+
+ Bool_t fAddTRDseeds; // Something else
+ Bool_t fNoTilt; // No tilt, or what?
+ Bool_t fHoles[5][18]; // holes
- Int_t fNclusters; // Number of clusters in TRD
- TObjArray *fClusters; // List of clusters for all sectors
+ Bool_t AdjustSector(AliTRDtrack *track);
+
+ private:
- Int_t fNseeds; // Number of track seeds
- TObjArray *fSeeds; // List of track seeds
-
- Int_t fNtracks; // Number of reconstructed tracks
- TObjArray *fTracks; // List of reconstructed tracks
+ AliTRDtrack *RegisterSeed(AliTRDseed *seeds, Double_t *params);
+ void MakeSeedsMI(Int_t inner, Int_t outer, AliESD *esd=0);
- Float_t fSY2corr; // Correction coefficient for
- // cluster SigmaY2
+ Int_t FollowBackProlongation(AliTRDtrack& t);
+ Int_t FollowProlongation(AliTRDtrack& t);
+ void CookdEdxTimBin(AliTRDtrack& t);
+ Int_t PropagateToX(AliTRDtrack& t, Double_t xToGo, Double_t maxStep);
+ Double_t ExpectedSigmaY2(Double_t r, Double_t tgl, Double_t pt) const;
+ Double_t ExpectedSigmaZ2(Double_t r, Double_t tgl) const;
- Float_t fSZ2corr; // Correction coefficient for
- // cluster SigmaZ2
+ TTreeSRedirector *fDebugStreamer; //!debug streamer
- static const Float_t fSeedGap; // Distance between inner and outer
- // time bin in seeding
- // (fraction of all time bins)
-
- static const Float_t fSeedStep; // Step in iterations
- static const Float_t fSeedDepth; // Fraction of TRD allocated for seeding
- static const Float_t fSkipDepth; // Fraction of TRD which can be skipped
- // in track prolongation
- Int_t fTimeBinsPerPlane; // number of sensitive timebins per plane
- Int_t fMaxGap; // max gap (in time bins) in the track
- // in track prolongation
-
- static const Double_t fMaxChi2; // max increment in track chi2
-
- static const Float_t fMinClustersInTrack; // min number of clusters in track
- // out of total timebins
-
- static const Float_t fMinFractionOfFoundClusters; // min found clusters
- // out of expected
-
- static const Float_t fMinClustersInSeed; // min fraction of clusters in seed
- static const Float_t fMaxSeedDeltaZ; // max dZ in MakeSeeds
- static const Float_t fMaxSeedDeltaZ12; // max abs(z1-z2) in MakeSeeds
- static const Float_t fMaxSeedC; // max initial curvature in MakeSeeds
- static const Float_t fMaxSeedTan; // max initial Tangens(lambda) in MakeSeeds
- static const Float_t fMaxSeedVertexZ; // max vertex Z in MakeSeeds
- static const Double_t fSeedErrorSY; // sy parameter in MakeSeeds
- static const Double_t fSeedErrorSY3; // sy3 parameter in MakeSeeds
- static const Double_t fSeedErrorSZ; // sz parameter in MakeSeeds
- static const Float_t fLabelFraction; // min fraction of same label
- static const Float_t fWideRoad; // max road width in FindProlongation
-
- Bool_t fVocal;
- Bool_t fAddTRDseeds;
-
- ClassDef(AliTRDtracker,1) // manager base class
+ ClassDef(AliTRDtracker,2) // TRD tracker
};
-
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff