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

#ifndef ALITRDSEED_H
#define ALITRDSEED_H   

/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */ 

/* $Id$ */

////////////////////////////////////////////////////////////////////////////
//                                                                        //
//  The TRD track seed                                                    //
//                                                                        //
////////////////////////////////////////////////////////////////////////////

#include "TObject.h" 

class AliTRDcluster;

class AliTRDseed : public TObject {

  friend class AliTRDtracker;

 public:

  AliTRDseed(); 
  AliTRDseed(const AliTRDseed &s);
  ~AliTRDseed() {};                 

  AliTRDseed      &operator=(const AliTRDseed &/*s*/)       { return *this;   } 

  static  void     EvaluateUni(Int_t nvectors, Double_t *data, Double_t &mean, Double_t &sigma, Int_t hh);
  static  Float_t  FitRiemanTilt(AliTRDseed *seed, Bool_t error);
          void     UseClusters();
          void     Update();
          void     CookLabels();
          void     UpdateUsed();
          void     Reset();
          Bool_t   IsOK() const                             { return fN2 > 8; }

 private:

          Float_t  fTilt;               //  Tilting angle
          Float_t  fPadLength;          //  Pad length
          Float_t  fX0;                 //  X0 position
          Float_t  fX[25];              //! X position
          Float_t  fY[25];              //! Y position
          Float_t  fZ[25];              //! Z position
          Int_t    fIndexes[25];        //! Indexes
          AliTRDcluster *fClusters[25]; //! Clusters
          Bool_t   fUsable[25];         //! Indication  - usable cluster
          Float_t  fYref[2];            //  Reference y
          Float_t  fZref[2];            //  Reference z
          Float_t  fYfit[2];            //  Y fit position +derivation
          Float_t  fYfitR[2];           //  Y fit position +derivation
          Float_t  fZfit[2];            //  Z fit position
          Float_t  fZfitR[2];           //  Z fit position
          Float_t  fSigmaY;             //  "Robust" sigma in Y - constant fit
          Float_t  fSigmaY2;            //  "Robust" sigma in Y - line fit
          Float_t  fMeanz;              //  Mean vaue of z
          Float_t  fZProb;              //  Max probbable z
          Int_t    fLabels[2];          //  Labels
          Int_t    fN;                  //  Number of associated clusters
          Int_t    fN2;                 //  Number of not crossed
          Int_t    fNUsed;              //  Number of used clusters
          Int_t    fFreq;               //  Frequency
          Int_t    fNChange;            //  Change z counter
          Float_t  fMPads;              //  Mean number of pads per cluster

          Float_t  fC;                  //  Curvature
          Float_t  fCC;                 //  Curvature with constrain
          Float_t  fChi2;               //  Global chi2
          Float_t  fChi2Z;              //  Global chi2

  ClassDef(AliTRDseed,1)                //  Seed for a local TRD track

};

#endif
Commit	Line	Data
75bd7f81	1	#ifndef ALITRDSEED_H
	2	#define ALITRDSEED_H
	3
	4	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	5	* See cxx source for full Copyright notice */
	6
ad670fba	7	/* $Id$ */
	8
	9	////////////////////////////////////////////////////////////////////////////
	10	// //
	11	// The TRD track seed //
	12	// //
	13	////////////////////////////////////////////////////////////////////////////
	14
75bd7f81	15	#include "TObject.h"
	16
	17	class AliTRDcluster;
	18
	19	class AliTRDseed : public TObject {
	20
	21	friend class AliTRDtracker;
	22
	23	public:
	24
	25	AliTRDseed();
ad670fba	26	AliTRDseed(const AliTRDseed &s);
75bd7f81	27	~AliTRDseed() {};
75bd7f81	28
ad670fba	29	AliTRDseed &operator=(const AliTRDseed &/s/) { return *this; }
	30
	31	static void EvaluateUni(Int_t nvectors, Double_t *data, Double_t &mean, Double_t &sigma, Int_t hh);
	32	static Float_t FitRiemanTilt(AliTRDseed *seed, Bool_t error);
	33	void UseClusters();
	34	void Update();
	35	void CookLabels();
	36	void UpdateUsed();
	37	void Reset();
	38	Bool_t IsOK() const { return fN2 > 8; }
75bd7f81	39
	40	private:
	41
ad670fba	42	Float_t fTilt; // Tilting angle
	43	Float_t fPadLength; // Pad length
	44	Float_t fX0; // X0 position
	45	Float_t fX[25]; //! X position
	46	Float_t fY[25]; //! Y position
	47	Float_t fZ[25]; //! Z position
	48	Int_t fIndexes[25]; //! Indexes
	49	AliTRDcluster *fClusters[25]; //! Clusters
	50	Bool_t fUsable[25]; //! Indication - usable cluster
	51	Float_t fYref[2]; // Reference y
	52	Float_t fZref[2]; // Reference z
	53	Float_t fYfit[2]; // Y fit position +derivation
	54	Float_t fYfitR[2]; // Y fit position +derivation
	55	Float_t fZfit[2]; // Z fit position
	56	Float_t fZfitR[2]; // Z fit position
	57	Float_t fSigmaY; // "Robust" sigma in Y - constant fit
	58	Float_t fSigmaY2; // "Robust" sigma in Y - line fit
	59	Float_t fMeanz; // Mean vaue of z
	60	Float_t fZProb; // Max probbable z
	61	Int_t fLabels[2]; // Labels
	62	Int_t fN; // Number of associated clusters
	63	Int_t fN2; // Number of not crossed
	64	Int_t fNUsed; // Number of used clusters
	65	Int_t fFreq; // Frequency
	66	Int_t fNChange; // Change z counter
	67	Float_t fMPads; // Mean number of pads per cluster
	68
	69	Float_t fC; // Curvature
	70	Float_t fCC; // Curvature with constrain
	71	Float_t fChi2; // Global chi2
	72	Float_t fChi2Z; // Global chi2
	73
	74	ClassDef(AliTRDseed,1) // Seed for a local TRD track
75bd7f81	75
75bd7f81	76	};
ad670fba	77
75bd7f81	78	#endif