[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                               */ 

#include "TObject.h" 

class AliTRDcluster;

class AliTRDseed : public TObject {

  friend class AliTRDtracker;

 public:

  AliTRDseed(); 
  ~AliTRDseed() {};                 

  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(); // use clusters
  void           Update();      // update information - without tilt correction
  void           CookLabels();  // cook label
  void           UpdateUsed();
  void           Reset();       // reset seed
  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;         // freq
  Int_t          fNChange;      // change z counter
  Float_t        fMPads;        // mean number of pads per cluster
  // global
  //
  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
	7	#include "TObject.h"
	8
	9	class AliTRDcluster;
	10
	11	class AliTRDseed : public TObject {
	12
	13	friend class AliTRDtracker;
	14
	15	public:
	16
	17	AliTRDseed();
	18	~AliTRDseed() {};
	19
	20	static void EvaluateUni(Int_t nvectors, Double_t *data, Double_t &mean, Double_t &sigma, Int_t hh);
	21	static Float_t FitRiemanTilt(AliTRDseed *seed, Bool_t error);
	22	void UseClusters(); // use clusters
	23	void Update(); // update information - without tilt correction
	24	void CookLabels(); // cook label
	25	void UpdateUsed();
	26	void Reset(); // reset seed
	27	Bool_t IsOK() const { return fN2 > 8;}
	28
	29	private:
	30
	31	Float_t fTilt; // tilting angle
	32	Float_t fPadLength; // pad length
	33	Float_t fX0; // x0 position
	34	Float_t fX[25]; // !x position
	35	Float_t fY[25]; // !y position
	36	Float_t fZ[25]; // !z position
	37	Int_t fIndexes[25]; // !indexes
	38	AliTRDcluster *fClusters[25]; // !clusters
	39	Bool_t fUsable[25]; // !indication - usable cluster
	40	Float_t fYref[2]; // reference y
	41	Float_t fZref[2]; // reference z
	42	Float_t fYfit[2]; // y fit position +derivation
	43	Float_t fYfitR[2]; // y fit position +derivation
	44	Float_t fZfit[2]; // z fit position
	45	Float_t fZfitR[2]; // z fit position
	46	Float_t fSigmaY; // "robust" sigma in Y - constant fit
	47	Float_t fSigmaY2; // "robust" sigma in Y - line fit
	48	Float_t fMeanz; // mean vaue of z
	49	Float_t fZProb; // max probbable z
	50	Int_t fLabels[2]; // labels
	51	Int_t fN; // number of associated clusters
	52	Int_t fN2; // number of not crossed
	53	Int_t fNUsed; // number of used clusters
	54	Int_t fFreq; // freq
	55	Int_t fNChange; // change z counter
	56	Float_t fMPads; // mean number of pads per cluster
	57	// global
	58	//
	59	Float_t fC; // curvature
	60	Float_t fCC; // curvature with constrain
	61	Float_t fChi2; // global chi2
	62	Float_t fChi2Z; // global chi2
	63
	64	ClassDef(AliTRDseed,1) // Seed for a local TRD track
65
66	};
67	#endif