[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();
  AliITSClusterParam(){}
  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);
  //
 protected:
  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
572f41f9	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>
5c6a2470	16	//#include "AliITSRecPoint.h"
572f41f9	17
5c6a2470	18	class AliITSRecPoint;
572f41f9	19
	20	//_____________________________________________________________________________
	21	class AliITSClusterParam : public TObject {
	22	public:
	23	static AliITSClusterParam* Instance();
	24	AliITSClusterParam(){}
	25	virtual ~AliITSClusterParam(){;}
	26	virtual void Print(Option_t* option = "") const;
	27	void SetInstance(AliITSClusterParam *param){fgInstance = param;}
	28	static void GetNTeor(Int_t layer,const AliITSRecPoint* cl,
e50912db	29	Float_t tgl,Float_t tgphitr,
e50912db	30	Float_t &ny,Float_t &nz);
572f41f9	31	static Int_t GetError(Int_t layer,const AliITSRecPoint*cl,
e50912db	32	Float_t tgl,Float_t tgphitr,Float_t expQ,
d9ead1a0	33	Float_t &erry,Float_t &errz,Float_t &covyz,
8c139cf3	34	Bool_t addMisalErr=kTRUE);
d9ead1a0	35	static Int_t GetError(Int_t layer,const AliITSRecPoint*cl,
	36	Float_t tgl,Float_t tgphitr,Float_t expQ,
	37	Float_t &erry,Float_t &errz,
	38	Bool_t addMisalErr=kTRUE) {
	39	Float_t covyz;
	40	return GetError(layer,cl,tgl,tgphitr,expQ,erry,errz,covyz,addMisalErr);
	41	}
572f41f9	42
	43	//void FitData(TTree * tree);
	44	//
	45	protected:
	46	static AliITSClusterParam* fgInstance; //! Instance of this class (singleton implementation)
e50912db	47	static Int_t GetErrorOrigRecPoint(const AliITSRecPoint*cl,
d9ead1a0	48	Float_t &erry,Float_t &errz,Float_t &covyz);
e50912db	49	static Int_t GetErrorParamMI(Int_t layer,const AliITSRecPoint*cl,
	50	Float_t tgl,Float_t tgphitr,Float_t expQ,
	51	Float_t &erry,Float_t &errz);
	52	static Int_t GetErrorParamAngle(Int_t layer,const AliITSRecPoint*cl,
	53	Float_t tgl,Float_t tgphitr,
	54	Float_t &erry,Float_t &errz);
12cc92e0	55	static Int_t GetErrorParamAngleOld(Int_t layer,const AliITSRecPoint*cl,
	56	Float_t tgl,Float_t tgphitr,
	57	Float_t &erry,Float_t &errz);
e50912db	58
572f41f9	59	ClassDef(AliITSClusterParam,1) // ITS cluster parametrization class
	60	};
	61
	62	#endif