[u/mrichter/AliRoot.git] / ITS / AliITSClusterParam.h

#ifndef ALIITSCLUSTERPARAM_H
#define ALIITSCLUSTERPARAM_H
/* Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id$ */

////////////////////////////////////////////////////
//                                                //
//  ITS cluster error and shape parameterization  //
//  andrea.dainese@lnl.infn.it                    //
////////////////////////////////////////////////////


#include <TObject.h>
//#include "AliITSRecPoint.h"

class AliITSRecPoint;

//_____________________________________________________________________________
class AliITSClusterParam : public TObject {
 public:
  static AliITSClusterParam* Instance();
  virtual           ~AliITSClusterParam(){;}
  virtual void	Print(Option_t* option = "") const;
  void SetInstance(AliITSClusterParam *param){fgInstance = param;}
  static void GetNTeor(Int_t layer,const AliITSRecPoint* cl,
		       Float_t tgl,Float_t tgphitr,
		       Float_t &ny,Float_t &nz);
  static Int_t GetError(Int_t layer,const AliITSRecPoint*cl,
			Float_t tgl,Float_t tgphitr,Float_t expQ,
			Float_t &erry,Float_t &errz,Float_t &covyz,
			Bool_t addMisalErr=kTRUE);
  static Int_t GetError(Int_t layer,const AliITSRecPoint*cl,
			Float_t tgl,Float_t tgphitr,Float_t expQ,
			Float_t &erry,Float_t &errz,
			Bool_t addMisalErr=kTRUE) {
                                  Float_t covyz;
    return GetError(layer,cl,tgl,tgphitr,expQ,erry,errz,covyz,addMisalErr);
  }

  //void FitData(TTree * tree);
  //
 private:
  AliITSClusterParam(){}
  AliITSClusterParam(const AliITSClusterParam &source); // copy constructor. Not to be used!
  AliITSClusterParam& operator=(const AliITSClusterParam &source); // = operator. Not to be used!
  static AliITSClusterParam*   fgInstance; //! Instance of this class (singleton implementation)
  static Int_t GetErrorOrigRecPoint(const AliITSRecPoint*cl,
				    Float_t &erry,Float_t &errz,Float_t &covyz);
  static Int_t GetErrorParamMI(Int_t layer,const AliITSRecPoint*cl,
			       Float_t tgl,Float_t tgphitr,Float_t expQ,
			       Float_t &erry,Float_t &errz);
  static Int_t GetErrorParamAngle(Int_t layer,const AliITSRecPoint*cl,
				  Float_t tgl,Float_t tgphitr,
				  Float_t &erry,Float_t &errz);
  static Int_t GetErrorParamAngleOld(Int_t layer,const AliITSRecPoint*cl,
                                  Float_t tgl,Float_t tgphitr,
                                  Float_t &erry,Float_t &errz);

  ClassDef(AliITSClusterParam,1)    //  ITS cluster parametrization class
};

#endif
Commit	Line	Data
	1	#ifndef ALIITSCLUSTERPARAM_H
	2	#define ALIITSCLUSTERPARAM_H
	3	/* Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
	4	* See cxx source for full Copyright notice */
	5
	6	/* $Id$ */
	7
	8	////////////////////////////////////////////////////
	9	// //
	10	// ITS cluster error and shape parameterization //
	11	// andrea.dainese@lnl.infn.it //
	12	////////////////////////////////////////////////////
	13
	14
	15	#include <TObject.h>
	16	//#include "AliITSRecPoint.h"
	17
	18	class AliITSRecPoint;
	19
	20	//_____________________________________________________________________________
	21	class AliITSClusterParam : public TObject {
	22	public:
	23	static AliITSClusterParam* Instance();
	24	virtual ~AliITSClusterParam(){;}
	25	virtual void Print(Option_t* option = "") const;
	26	void SetInstance(AliITSClusterParam *param){fgInstance = param;}
	27	static void GetNTeor(Int_t layer,const AliITSRecPoint* cl,
	28	Float_t tgl,Float_t tgphitr,
	29	Float_t &ny,Float_t &nz);
	30	static Int_t GetError(Int_t layer,const AliITSRecPoint*cl,
	31	Float_t tgl,Float_t tgphitr,Float_t expQ,
	32	Float_t &erry,Float_t &errz,Float_t &covyz,
	33	Bool_t addMisalErr=kTRUE);
	34	static Int_t GetError(Int_t layer,const AliITSRecPoint*cl,
	35	Float_t tgl,Float_t tgphitr,Float_t expQ,
	36	Float_t &erry,Float_t &errz,
	37	Bool_t addMisalErr=kTRUE) {
	38	Float_t covyz;
	39	return GetError(layer,cl,tgl,tgphitr,expQ,erry,errz,covyz,addMisalErr);
	40	}
	41
	42	//void FitData(TTree * tree);
	43	//
	44	private:
	45	AliITSClusterParam(){}
	46	AliITSClusterParam(const AliITSClusterParam &source); // copy constructor. Not to be used!
	47	AliITSClusterParam& operator=(const AliITSClusterParam &source); // = operator. Not to be used!
	48	static AliITSClusterParam* fgInstance; //! Instance of this class (singleton implementation)
	49	static Int_t GetErrorOrigRecPoint(const AliITSRecPoint*cl,
	50	Float_t &erry,Float_t &errz,Float_t &covyz);
	51	static Int_t GetErrorParamMI(Int_t layer,const AliITSRecPoint*cl,
	52	Float_t tgl,Float_t tgphitr,Float_t expQ,
	53	Float_t &erry,Float_t &errz);
	54	static Int_t GetErrorParamAngle(Int_t layer,const AliITSRecPoint*cl,
	55	Float_t tgl,Float_t tgphitr,
	56	Float_t &erry,Float_t &errz);
	57	static Int_t GetErrorParamAngleOld(Int_t layer,const AliITSRecPoint*cl,
	58	Float_t tgl,Float_t tgphitr,
	59	Float_t &erry,Float_t &errz);
	60
	61	ClassDef(AliITSClusterParam,1) // ITS cluster parametrization class
	62	};
	63
	64	#endif