[u/mrichter/AliRoot.git] / TRD / AliTRDonlineTrackMatching.h

#ifndef ALITRDONLINETRACKMATCHING_H
#define ALITRDONLINETRACKMATCHING_H

//
// Track matching between TRD online tracks and ESD tracks.
// Author: Felix Rettig <rettig@compeng.uni-frankfurt.de>

#include "TObject.h"
class TH1;
class AliESDEvent;
class AliExternalTrackParam;
class AliTRDgeometry;
class AliESDTrdTrack;

//#define TRD_TM_DEBUG

class AliTRDonlineTrackMatching {
 public:
  AliTRDonlineTrackMatching();
  ~AliTRDonlineTrackMatching();

  inline static Short_t TrdLsiSec(Short_t lsi) { return (lsi < 0) ? -1 : (lsi/5); }           // convert linear stack index 0-89 to TRD sector 0-17
  inline static Short_t TrdLsiSi(Short_t lsi) { return (lsi < 0) ? -1 : (lsi%5); }            // convert stack index 0-89 to local stack index 0-4
  inline static Short_t TrdDetLsi(Short_t det) { return det/6; }                              // convert TRD detector/chamber 0-539 index to linear stack index 0-89
  inline static Short_t TrdDetSi(Short_t det) { return (det%30)/6; }                          // convert detector (=chamber) number 0-539 to local stack index 0-4
  inline static Short_t TrdDetLyr(Short_t det) { return det%6; }                              // convert detector (=chamber) number 0-539 to local layer 0-5
  inline static Short_t TrdSecSiLsi(Short_t sec, Short_t si) { return 5*sec + si; }          // convert sector (0-17) and local stack index (0-4) to linear stack index 0-89

  static Short_t EstimateSector(const Double_t globalCoords[3]);
  static Short_t EstimateLayer(const Double_t radius);
  static Short_t EstimateLocalStack(const Double_t globalCoords[3]);
  static Short_t EstimateStack(const Double_t globalCoords[3]);

  static Bool_t StackToTrack(const AliExternalTrackParam* track, Short_t &stack, UShort_t &layersWithTracklet, const Double_t magFieldinKiloGauss);
  static Bool_t StackToTrack(const AliESDtrack* track, Short_t &stack, UShort_t &layersWithTracklet, const Double_t magFieldinKiloGauss);

  static Bool_t TrackPlaneIntersect(AliExternalTrackParam *trk, Double_t pnt[3], Double_t norm[3], Double_t mag);
  Int_t EstimateTrackDistance(AliESDtrack *esd_track, AliESDTrdTrack* gtu_track, Double_t mag, Double_t *ydist, Double_t *zdist);
  static Double_t RateTrackMatch(const Double_t distY, const Double_t distZ, const Double_t rpt, const Double_t gpt);

  static void SetEsdTrackCutMinTPCrows(const Double_t setting) { fEsdTrackCutMinTPCrows = setting; };
  static void SetEsdTrackCutMinRatioRowsFindableClusters(const Double_t setting) { fEsdTrackCutMinRatioRowsFindableClusters = setting; };
  static void SetEsdTrackCutMaxChi2TPCclusters(const Float_t setting) { fEsdTrackCutMaxChi2TPCclusters = setting; };
  static void SetEsdTrackCutMaxChi2ITSclusters(const Float_t setting) { fEsdTrackCutMaxChi2ITSclusters = setting; };
  static void SetEsdTrackCutMaxDCAtoVertexXY(const Float_t setting) { fEsdTrackCutMaxDCAtoVertexXY = setting; };
  static void SetEsdTrackCutMaxDCAtoVertexZ(const Float_t setting) { fEsdTrackCutMaxDCAtoVertexZ = setting; };
  static void SetEsdTrackCutITSlayerMask(const UShort_t setting) { fEsdTrackCutsITSlayerMask = setting; };
  static void SetEsdTrackCutsChi2TPCconstrainedVsGlobal(const Float_t setting) { fEsdTrackVCutsChi2TPCconstrainedVsGlobal = setting; };
  static void SetEsdTrackCutMinimal(const Bool_t setting) { fEsdTrackCutMinimal = setting; };
  static void SetEsdTrackCutRequireITSrefit(const Bool_t setting) { fEsdTrackCutRequireITSrefit = setting; };
  static void SetEsdTrackCutRequireTPCrefit(const Bool_t setting) { fEsdTrackCutRequireTPCrefit = setting; };
  static void SetEsdTrackCutPrim(const Bool_t setting) { fEsdTrackCutPrim = setting; };

  static void SetEsdTrackDefaultCuts(const char* cutIdent = "minimal");

  void SetMinMatchRating(const Float_t setting) { fMinMatchRating = setting; };
  void SetHistMatchRating(TH1* hist) { fHistMatchRating = hist; };

  static Bool_t AcceptTrack(const AliESDtrack* esdTrack, const AliESDEvent* esdEvent);
  Bool_t ProcessEvent(AliESDEvent *esdEvent);

 protected:

  inline static Double_t PtDiffRel(const Double_t refPt, const Double_t gtuPt);

  static const unsigned int fgkMaxEsdTracksPerStack = 20000; // max no. of tracks per stack
  static const unsigned int fgkTrdStacks = 90;		     // no. of TRD stacks (0-89)
  static const Float_t     fgkSaveInnerRadius;		     // inner radius for extrapolation
  static const Float_t     fgkSaveOuterRadius;		     // outer radius for extrapolation

  static Float_t fEsdTrackCutMinTPCrows;                   // track cut
  static Float_t fEsdTrackCutMinRatioRowsFindableClusters; // track cut
  static Float_t fEsdTrackCutMaxChi2TPCclusters;	   // track cut
  static Float_t fEsdTrackCutMaxChi2ITSclusters;	   // track cut
  static Float_t fEsdTrackCutMaxDCAtoVertexXY;		   // track cut
  static Float_t fEsdTrackCutMaxDCAtoVertexZ;		   // track cut
  static UShort_t fEsdTrackCutsITSlayerMask;		   // track cut
  static Float_t fEsdTrackVCutsChi2TPCconstrainedVsGlobal; // track cut
  static Float_t fEsdTrackCutPtDCAOfs;			   // track cut
  static Float_t fEsdTrackCutPtDCACoeff;		   // track cut
  static Bool_t fEsdTrackCutMinimal;                       // activate/deactive minimal track cuts
  static Bool_t fEsdTrackCutRequireITSrefit;		   // track cut
  static Bool_t fEsdTrackCutRequireTPCrefit;		   // track cut
  static Bool_t fEsdTrackCutPrim;			   // select primaries or keep secondaries for matching

  AliTRDgeometry* fTRDgeo;           //! TRD geometry instance
  Float_t fMinMatchRating;	     //! min rating to accept pair of matched tracks
  TH1* fHistMatchRating;	     //! optional histogram for match rating for all TRD tracks

  AliTRDonlineTrackMatching(const AliTRDonlineTrackMatching &c);
  AliTRDonlineTrackMatching& operator=(const AliTRDonlineTrackMatching& rhs);
};

#endif
Commit	Line	Data
30bd9a5a	1	#ifndef ALITRDONLINETRACKMATCHING_H
	2	#define ALITRDONLINETRACKMATCHING_H
	3
	4	//
	5	// Track matching between TRD online tracks and ESD tracks.
	6	// Author: Felix Rettig <rettig@compeng.uni-frankfurt.de>
	7
	8	#include "TObject.h"
	9	class TH1;
	10	class AliESDEvent;
	11	class AliExternalTrackParam;
	12	class AliTRDgeometry;
	13	class AliESDTrdTrack;
	14
	15	//#define TRD_TM_DEBUG
	16
	17	class AliTRDonlineTrackMatching {
	18	public:
	19	AliTRDonlineTrackMatching();
	20	~AliTRDonlineTrackMatching();
	21
	22	inline static Short_t TrdLsiSec(Short_t lsi) { return (lsi < 0) ? -1 : (lsi/5); } // convert linear stack index 0-89 to TRD sector 0-17
	23	inline static Short_t TrdLsiSi(Short_t lsi) { return (lsi < 0) ? -1 : (lsi%5); } // convert stack index 0-89 to local stack index 0-4
	24	inline static Short_t TrdDetLsi(Short_t det) { return det/6; } // convert TRD detector/chamber 0-539 index to linear stack index 0-89
	25	inline static Short_t TrdDetSi(Short_t det) { return (det%30)/6; } // convert detector (=chamber) number 0-539 to local stack index 0-4
	26	inline static Short_t TrdDetLyr(Short_t det) { return det%6; } // convert detector (=chamber) number 0-539 to local layer 0-5
	27	inline static Short_t TrdSecSiLsi(Short_t sec, Short_t si) { return 5*sec + si; } // convert sector (0-17) and local stack index (0-4) to linear stack index 0-89
	28
	29	static Short_t EstimateSector(const Double_t globalCoords[3]);
	30	static Short_t EstimateLayer(const Double_t radius);
	31	static Short_t EstimateLocalStack(const Double_t globalCoords[3]);
	32	static Short_t EstimateStack(const Double_t globalCoords[3]);
	33
	34	static Bool_t StackToTrack(const AliExternalTrackParam* track, Short_t &stack, UShort_t &layersWithTracklet, const Double_t magFieldinKiloGauss);
	35	static Bool_t StackToTrack(const AliESDtrack* track, Short_t &stack, UShort_t &layersWithTracklet, const Double_t magFieldinKiloGauss);
	36
	37	static Bool_t TrackPlaneIntersect(AliExternalTrackParam *trk, Double_t pnt[3], Double_t norm[3], Double_t mag);
	38	Int_t EstimateTrackDistance(AliESDtrack esd_track, AliESDTrdTrack gtu_track, Double_t mag, Double_t ydist, Double_t zdist);
	39	static Double_t RateTrackMatch(const Double_t distY, const Double_t distZ, const Double_t rpt, const Double_t gpt);
	40
	41	static void SetEsdTrackCutMinTPCrows(const Double_t setting) { fEsdTrackCutMinTPCrows = setting; };
	42	static void SetEsdTrackCutMinRatioRowsFindableClusters(const Double_t setting) { fEsdTrackCutMinRatioRowsFindableClusters = setting; };
	43	static void SetEsdTrackCutMaxChi2TPCclusters(const Float_t setting) { fEsdTrackCutMaxChi2TPCclusters = setting; };
	44	static void SetEsdTrackCutMaxChi2ITSclusters(const Float_t setting) { fEsdTrackCutMaxChi2ITSclusters = setting; };
	45	static void SetEsdTrackCutMaxDCAtoVertexXY(const Float_t setting) { fEsdTrackCutMaxDCAtoVertexXY = setting; };
	46	static void SetEsdTrackCutMaxDCAtoVertexZ(const Float_t setting) { fEsdTrackCutMaxDCAtoVertexZ = setting; };
	47	static void SetEsdTrackCutITSlayerMask(const UShort_t setting) { fEsdTrackCutsITSlayerMask = setting; };
	48	static void SetEsdTrackCutsChi2TPCconstrainedVsGlobal(const Float_t setting) { fEsdTrackVCutsChi2TPCconstrainedVsGlobal = setting; };
	49	static void SetEsdTrackCutMinimal(const Bool_t setting) { fEsdTrackCutMinimal = setting; };
	50	static void SetEsdTrackCutRequireITSrefit(const Bool_t setting) { fEsdTrackCutRequireITSrefit = setting; };
	51	static void SetEsdTrackCutRequireTPCrefit(const Bool_t setting) { fEsdTrackCutRequireTPCrefit = setting; };
	52	static void SetEsdTrackCutPrim(const Bool_t setting) { fEsdTrackCutPrim = setting; };
	53
	54	static void SetEsdTrackDefaultCuts(const char* cutIdent = "minimal");
	55
	56	void SetMinMatchRating(const Float_t setting) { fMinMatchRating = setting; };
	57	void SetHistMatchRating(TH1* hist) { fHistMatchRating = hist; };
	58
	59	static Bool_t AcceptTrack(const AliESDtrack* esdTrack, const AliESDEvent* esdEvent);
	60	Bool_t ProcessEvent(AliESDEvent *esdEvent);
	61
	62	protected:
	63
	64	inline static Double_t PtDiffRel(const Double_t refPt, const Double_t gtuPt);
65
66	static const unsigned int fgkMaxEsdTracksPerStack = 20000; // max no. of tracks per stack
67	static const unsigned int fgkTrdStacks = 90; // no. of TRD stacks (0-89)
68	static const Float_t fgkSaveInnerRadius; // inner radius for extrapolation
69	static const Float_t fgkSaveOuterRadius; // outer radius for extrapolation
70
71	static Float_t fEsdTrackCutMinTPCrows; // track cut
72	static Float_t fEsdTrackCutMinRatioRowsFindableClusters; // track cut
73	static Float_t fEsdTrackCutMaxChi2TPCclusters; // track cut
74	static Float_t fEsdTrackCutMaxChi2ITSclusters; // track cut
75	static Float_t fEsdTrackCutMaxDCAtoVertexXY; // track cut
76	static Float_t fEsdTrackCutMaxDCAtoVertexZ; // track cut
77	static UShort_t fEsdTrackCutsITSlayerMask; // track cut
78	static Float_t fEsdTrackVCutsChi2TPCconstrainedVsGlobal; // track cut
79	static Float_t fEsdTrackCutPtDCAOfs; // track cut
80	static Float_t fEsdTrackCutPtDCACoeff; // track cut
81	static Bool_t fEsdTrackCutMinimal; // activate/deactive minimal track cuts
82	static Bool_t fEsdTrackCutRequireITSrefit; // track cut
83	static Bool_t fEsdTrackCutRequireTPCrefit; // track cut
84	static Bool_t fEsdTrackCutPrim; // select primaries or keep secondaries for matching
85
86	AliTRDgeometry* fTRDgeo; //! TRD geometry instance
87	Float_t fMinMatchRating; //! min rating to accept pair of matched tracks
88	TH1* fHistMatchRating; //! optional histogram for match rating for all TRD tracks
89
90	AliTRDonlineTrackMatching(const AliTRDonlineTrackMatching &c);
91	AliTRDonlineTrackMatching& operator=(const AliTRDonlineTrackMatching& rhs);
92	};
93
94	#endif