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

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

/* $Id$ */

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  Track fitter                                                             //
//                                                                           //
//  Authors:                                                                 //
//    Alex Bercuci <A.Bercuci@gsi.de>                                        //
//    Markus Fasel <M.Fasel@gsi.de>                                          //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#ifndef AliRIEMAN_H
#include <AliRieman.h>
#endif

#ifndef ROOT_Rtypes
#include "Rtypes.h"
#endif

// implementations in the future
class TObject;
class TLinearFitter;
class TTreeSRedirector;

class AliTRDcluster;
class AliTRDseedV1;

class AliTRDtrackerFitter : public TObject {
 
 public:

	AliTRDtrackerFitter();
	AliTRDtrackerFitter(const AliTRDtrackerFitter &f);
	AliTRDtrackerFitter& operator=(const AliTRDtrackerFitter &f);
	virtual ~AliTRDtrackerFitter();

	void            Copy(TObject &f) const;
	AliRieman      *GetRiemanFitter() const { return fRieman1; }
	void            GetHyperplaneFitChi2(Double_t *chisquares) const;
	void            GetHyperplaneFitResults(Double_t *params) const;
	Double_t        GetRiemanCurvature() const { return fRieman1->GetC(); }

	void            FitRieman(AliTRDcluster **cl, Int_t nLayers);
	void            FitRieman(AliTRDseedV1 *cseed, Int_t *planes=0x0);
	Double_t        FitHyperplane(AliTRDseedV1 *cseed, Double_t chi2ZF, Double_t zval);
	void            Reset();
	void            SetDebugStream(TTreeSRedirector *debug){fDebugStream = debug;}
	void            SetLayers(const Int_t nlayers) {fNlayers = nlayers;}

 private:

	// Linear fitters in planes
	TLinearFitter    *fFitterTC;       // Fitting with tilting pads - kz fixed - kz= Z/x, + vertex const
	TLinearFitter    *fFitterT2;       // Fitting with tilting pads - kz not fixed
	AliRieman        *fRieman1;        // Rieman fitter
	AliRieman        *fRieman2;        // Rieman fitter
	// Linear Fitter chisquares
	Double_t          fChi2TR;         // Chisquared
	Double_t          fChi2TC;         // Chisquared
	// Hyperplane Fit results
	Double_t          fCR;             // Track radius
	Double_t          fCC;             // Track curvature
	Double_t          fDca;            // DCA       
	// Helping Parameters
	Double_t          fDzmf;           // Something
	Double_t          fZmf;            // Something else
	Int_t             fNlayers;        // Some layers

	// Debug
	TTreeSRedirector *fDebugStream;    //! debugger

	ClassDef(AliTRDtrackerFitter,1)    // TRD track fitter
};
#endif // ALITRDTRACKERFITTER_H
Commit	Line	Data
e4f2f73d	1	#ifndef ALITRDTRACKERFITTER_H
	2	#define ALITRDTRACKERFITTER_H
	3	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	4	* See cxx source for full Copyright notice */
	5
	6	/* $Id$ */
	7
	8	///////////////////////////////////////////////////////////////////////////////
	9	// //
	10	// Track fitter //
	11	// //
	12	// Authors: //
	13	// Alex Bercuci <A.Bercuci@gsi.de> //
	14	// Markus Fasel <M.Fasel@gsi.de> //
	15	// //
	16	///////////////////////////////////////////////////////////////////////////////
	17
	18	#ifndef AliRIEMAN_H
	19	#include <AliRieman.h>
	20	#endif
	21
	22	#ifndef ROOT_Rtypes
	23	#include "Rtypes.h"
	24	#endif
	25
	26	// implementations in the future
	27	class TObject;
	28	class TLinearFitter;
	29	class TTreeSRedirector;
	30
	31	class AliTRDcluster;
	32	class AliTRDseedV1;
	33
	34	class AliTRDtrackerFitter : public TObject {
	35
	36	public:
	37
	38	AliTRDtrackerFitter();
d76231c8	39	AliTRDtrackerFitter(const AliTRDtrackerFitter &f);
d76231c8	40	AliTRDtrackerFitter& operator=(const AliTRDtrackerFitter &f);
e4f2f73d	41	virtual ~AliTRDtrackerFitter();
	42
	43	void Copy(TObject &f) const;
	44	AliRieman *GetRiemanFitter() const { return fRieman1; }
	45	void GetHyperplaneFitChi2(Double_t *chisquares) const;
	46	void GetHyperplaneFitResults(Double_t *params) const;
	47	Double_t GetRiemanCurvature() const { return fRieman1->GetC(); }
	48
	49	void FitRieman(AliTRDcluster **cl, Int_t nLayers);
	50	void FitRieman(AliTRDseedV1 cseed, Int_t planes=0x0);
	51	Double_t FitHyperplane(AliTRDseedV1 *cseed, Double_t chi2ZF, Double_t zval);
	52	void Reset();
	53	void SetDebugStream(TTreeSRedirector *debug){fDebugStream = debug;}
	54	void SetLayers(const Int_t nlayers) {fNlayers = nlayers;}
	55
	56	private:
	57
	58	// Linear fitters in planes
	59	TLinearFitter *fFitterTC; // Fitting with tilting pads - kz fixed - kz= Z/x, + vertex const
	60	TLinearFitter *fFitterT2; // Fitting with tilting pads - kz not fixed
	61	AliRieman *fRieman1; // Rieman fitter
	62	AliRieman *fRieman2; // Rieman fitter
	63	// Linear Fitter chisquares
	64	Double_t fChi2TR; // Chisquared
	65	Double_t fChi2TC; // Chisquared
	66	// Hyperplane Fit results
	67	Double_t fCR; // Track radius
	68	Double_t fCC; // Track curvature
	69	Double_t fDca; // DCA
	70	// Helping Parameters
	71	Double_t fDzmf; // Something
	72	Double_t fZmf; // Something else
	73	Int_t fNlayers; // Some layers
	74
	75	// Debug
	76	TTreeSRedirector *fDebugStream; //! debugger
	77
	78	ClassDef(AliTRDtrackerFitter,1) // TRD track fitter
	79	};
	80	#endif // ALITRDTRACKERFITTER_H