[u/mrichter/AliRoot.git] / FMD / AliFMDReconstructor.h

#ifndef ALIFMDRECONSTRUCTOR_H
#define ALIFMDRECONSTRUCTOR_H
//
//  Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights
//  reserved. 
//
//  See cxx source for full Copyright notice                               
//
//  AliFMDReconstructor.h 
//  Task Class for making TreeR for FMD                        
//
//-- Authors: Evgeny Karpechev (INR) and Alla Maevskaia (INR)
//   Latest changes by Christian Holm Christensen <cholm@nbi.dk>
/* $Id$ */
/** @file    AliFMDReconstructor.h
    @author  Christian Holm Christensen <cholm@nbi.dk>
    @date    Mon Mar 27 12:47:09 2006
    @brief   FMD reconstruction 
*/

//____________________________________________________________________
// Header guards in the header files speeds up the compilation
// considerably.  Please leave them in. 
#ifndef ALIRECONSTRUCTOR_H
# include <AliReconstructor.h>
#endif
#include "AliLog.h"

//____________________________________________________________________
class TTree;
class TClonesArray;
class AliFMDDigit;
class AliRawReader;
class AliESDEvent;
class AliESDFMD;
class TH1;


/** @defgroup FMD_rec Reconstruction */
//____________________________________________________________________
/** 
 * @brief This is a class that reconstructs AliFMDRecPoint objects
 *        from of Digits.  
 *
 * This class reads either digits from a TClonesArray or raw data
 * from a DDL file (or similar), and applies calibrations to get
 * psuedo-inclusive multiplicities per strip.
 * 
 * @ingroup FMD_rec
 */
class AliFMDReconstructor: public AliReconstructor 
{
public:
  /** 
   * CTOR 
   */
  AliFMDReconstructor();
  /** 
   * DTOR 
   */
  virtual ~AliFMDReconstructor();

  /** 
   * Initialize the reconstructor.  Here, we initialize the geometry
   * manager, and finds the local to global transformations from the
   * geometry.   The calibration parameter manager is also
   * initialized (meaning that the calibration parameters is read
   * from CDB).
   */
  virtual void   Init();
  /** 
   * Flag that we can convert raw data into digits. 
   *
   * @return always @c true 
   */
  virtual Bool_t HasDigitConversion() const { return kTRUE; }
  /** 
   * Convert raw data read from the AliRawReader @a reader into
   * digits.  This is done using AliFMDRawReader and
   * AliFMDAltroReader.  The digits are put in the passed TTree @a
   * digitsTree. 
   *
   * @param reader     Raw reader. 
   * @param digitsTree Tree to store read digits in. 
   */
  virtual void   ConvertDigits(AliRawReader* reader, TTree* digitsTree) const;
  /** 
   * Reconstruct one event from the digits passed in @a digitsTree.
   * The member function creates AliFMDRecPoint objects and stores
   * them on the output tree @a clusterTree.  An FMD ESD object is
   * created in parallel. 
   *
   * @param digitsTree  Tree holding the digits of this event
   * @param clusterTree Tree to store AliFMDRecPoint objects in. 
   */
  virtual void   Reconstruct(TTree* digitsTree, TTree* clusterTree) const;
  /** 
   * Not used 
   * @todo Implement this, such that we'll reconstruct directly from
   *       the read ADC values rather than going via an intermedant
   *       TClonesArray of AliFMDDigits
   */
  virtual void   Reconstruct(AliRawReader *, TTree*) const;
  /** 
   * Put in the ESD data, the FMD ESD data.  The object created by
   * the Reconstruct member function is copied to the ESD object. 
   *
   * @param digitsTree   Tree of digits for this event - not used
   * @param clusterTree  Tree of reconstructed points for this event -
   *        not used.
   * @param esd ESD object to store data in. 
   */
  virtual void   FillESD(TTree* digitsTree, TTree* clusterTree, 
			 AliESDEvent* esd) const;
  /** 
   * Forwards to above member function 
   */
  virtual void   FillESD(AliRawReader*, TTree* clusterTree, 
			 AliESDEvent* esd) const;

  /** 
   * Create SDigits from raw data
   * 
   * @param reader  The raw reader
   * @param sdigits Array to fill with AliFMDSDigit objects. 
   */  
  virtual void Digitize(AliRawReader* reader, 
			TClonesArray* sdigits) const;
  
  /** 
   * Not used 
   */
  virtual void   SetESD(AliESDEvent* esd) { fESD = esd; }
  /** 
   * Set the noise factor 
   *
   * @param f Factor to use 
   */
  virtual void SetNoiseFactor(Float_t f=3) { fNoiseFactor = f; }
  /** 
   * Set whether we should do angle correction or nor 
   *
   * @param use If true, do angle correction 
   */
  virtual void SetAngleCorrect(Bool_t use=kTRUE) { fAngleCorrect = use; }
  /** 
   * Set whether we want to do diagnostics.  If this is enabled, a
   * file named @c FMD.Diag.root will be made.  It contains a set of
   * histograms for each event, filed in separate directories in the
   * file.  The histograms are 
   * @verbatim 
   * diagStep1   Read ADC vs. Noise surpressed ADC 
   * diagStep2   Noise surpressed ADC vs. calculated Energy dep.
   * diagStep3   Energy deposition vs. angle corrected Energy dep.
   * diagStep4   Energy deposition vs. calculated multiplicity
   * diagAll     Read ADC vs. calculated multiplicity
   * @endverbatim 
   *
   * @param use If true, make the diagnostics file 
   */
  void SetDiagnose(Bool_t use=kTRUE) { fDiagnostics = use; }
protected:
  /** 
   * Copy CTOR 
   *
   * @param other Object to copy from. 
   */
  AliFMDReconstructor(const AliFMDReconstructor& other);
  /** 
   * Assignment operator 
   *
   * @param other Object to assign from
   *
   * @return reference to this object 
   */
  AliFMDReconstructor& operator=(const AliFMDReconstructor& other);
  /** 
   * Try to get the vertex from either ESD or generator header.  Sets
   * @c fCurrentVertex to the found Z posistion of the vertex (if 
   * found), and sets the flag @c fVertexType accordingly 
   */
  virtual void GetVertex() const;
  /** 
   * Process AliFMDDigit objects in @a digits.  For each digit, find
   * the psuedo-rapidity @f$ \eta@f$, azimuthal angle @f$ \varphi@f$,
   * energy deposited @f$ E@f$, and psuedo-inclusive multiplicity @f$
   * M@f$.
   * 
   * @param digits Array of digits. 
   */
  virtual void     ProcessDigits(TClonesArray* digits) const;
  /** 
   * Process a single digit 
   * 
   * @param digit Digiti to process
   */ 
  virtual void ProcessDigit(AliFMDDigit* digit) const;
  /** 
   * Process the signal from a single strip. 
   * 
   * @param det Detector number 
   * @param rng Ring identifier 
   * @param sec Sector number
   * @param str Strip number 
   * @param adc Number of ADC counts for this strip
   */  
  virtual void ProcessSignal(UShort_t det, 
			     Char_t   rng, 
			     UShort_t sec, 
			     UShort_t str, 
			     Short_t  adc) const;
  /** 
   * Process the signal from a single strip. 
   * 
   * @param sdigits Array to fill
   * @param det     Detector number 
   * @param rng     Ring identifier 
   * @param sec     Sector number
   * @param str     Strip number 
   * @param sam     Sample number 
   * @param adc     Number of ADC counts for this strip
   */  
  virtual void DigitizeSignal(TClonesArray* sdigits, 
			      UShort_t      det, 
			      Char_t         rng, 
			      UShort_t       sec, 
			      UShort_t       str, 
			      UShort_t       sam,
			      Short_t        adc) const;
  /** 
   * Subtract the pedestal off the ADC counts. 
   * 
   * @param det           Detector number
   * @param rng           Ring identifier
   * @param sec           Sector number
   * @param str           Strip number
   * @param adc           ADC counts
   * @param noiseFactor   If pedestal substracted pedestal is less then
   *        this times the noise, then consider this to be 0. 
   * @param zsEnabled     Whether zero-suppression is on.
   * @param zsNoiseFactor Noise factor used in on-line pedestal
   *        subtraction. 
   * 
   * @return The pedestal subtracted ADC counts (possibly 0), or @c
   *         USHRT_MAX in case of problems.
   */  
  virtual UShort_t SubtractPedestal(UShort_t det, 
				    Char_t   rng, 
				    UShort_t sec, 
				    UShort_t str, 
				    UShort_t adc, 
				    Float_t  noiseFactor,
				    Bool_t   zsEnabled, 
				    UShort_t zsNoiseFactor) const;
  /** 
   * Substract pedestals from raw ADC in @a digit
   * 
   * @param det	  Detector number  
   * @param rng   Ring identifier 
   * @param sec   Sector number
   * @param str   Strip number 
   * @param adc   Number of ADC counts
   *
   * @return Pedestal subtracted ADC count. 
   */
  virtual UShort_t SubtractPedestal(UShort_t det, 
				    Char_t   rng, 
				    UShort_t sec, 
				    UShort_t str, 
				    Short_t  adc) const;
  /** 
   * Converts number of ADC counts to energy deposited.   This is
   * done by 
   * @f[
   * E_i = A_i g_i
   * @f]
   * where @f$ A_i@f$ is the pedestal subtracted ADC counts, and @f$
   * g_i@f$ is the gain for the @f$ i^{\mbox{th}}@f$ strip. 
   * 
   * @param det	  Detector number  
   * @param rng   Ring identifier 
   * @param sec   Sector number
   * @param str   Strip number 
   * @param eta   Psuedo-rapidity of digit.
   * @param count Pedestal subtracted ADC counts
   *
   * @return Energy deposited @f$ E_i@f$ 
   */
  virtual Float_t  Adc2Energy(UShort_t det, 
			      Char_t   rng, 
			      UShort_t sec, 
			      UShort_t str, 
			      UShort_t count) const;
  /** 
   * Converts number of ADC counts to energy deposited.   This is
   * done by 
   * @f[
   * E_i = A_i g_i
   * @f]
   * where @f$ A_i@f$ is the pedestal subtracted ADC counts, and @f$
   * g_i@f$ is the gain for the @f$ i^{\mbox{th}}@f$ strip. 
   * 
   * @param det	  Detector number  
   * @param rng   Ring identifier 
   * @param sec   Sector number
   * @param str   Strip number 
   * @param eta   Psuedo-rapidity of digit.
   * @param count Pedestal subtracted ADC counts
   *
   * @return Energy deposited @f$ E_i@f$ 
   */
  virtual Float_t  Adc2Energy(UShort_t det, 
			      Char_t   rng, 
			      UShort_t sec, 
			      UShort_t str, 
			      Float_t  eta, 
			      UShort_t count) const;
  /** 
   * Converts an energy signal to number of particles. In this
   * implementation, it's done by 
   * @f[
   * M_i = E_i / E_{\mbox{MIP}}
   * @f]
   * where @f$ E_i@f$ is the energy deposited, and 
   * @f$ E_{\mbox{MIP}}@f$ is the average energy deposited by a
   * minimum ionizing particle
   * 
   * @param det	  Detector number  
   * @param rng   Ring identifier 
   * @param sec   Sector number
   * @param str   Strip number 
   * @param eta   On return, psuedo-rapidity @f$ \eta@f$
   * @param phi   On return, azimuthal angle @f$ \varphi@f$ 
   * @param edep Energy deposited @f$ E_i@f$
   *
   * @return Psuedo-inclusive multiplicity @f$ M@f$ 
   */
  virtual Float_t  Energy2Multiplicity(UShort_t det, 
				       Char_t   rng, 
				       UShort_t sec, 
				       UShort_t str, 
				       Float_t  edep) const;
  /** 
   * Calculate the physical coordinates psuedo-rapidity @f$ \eta@f$,
   * azimuthal angle @f$ \varphi@f$ of the strip corresponding to
   * the digit @a digit.   This is done by using the information
   * obtained, and previously cached by AliFMDGeometry, from the
   * TGeoManager. 
   * 
   * @param det	  Detector number  
   * @param rng   Ring identifier 
   * @param sec   Sector number
   * @param str   Strip number 
   * @param eta   On return, psuedo-rapidity @f$ \eta@f$
   * @param phi   On return, azimuthal angle @f$ \varphi@f$ 
   */
  virtual void     PhysicalCoordinates(UShort_t det, 
				       Char_t   rng, 
				       UShort_t sec, 
				       UShort_t str, 
				       Float_t& eta, 
				       Float_t& phi) const;
  
  enum Vertex_t {
    kNoVertex,   // Got no vertex
    kGenVertex,  // Got generator vertex 
    kESDVertex   // Got ESD vertex 
  };
  mutable TClonesArray* fMult;          // Cache of RecPoints
  mutable Int_t         fNMult;         // Number of entries in fMult 
  mutable TTree*        fTreeR;         // Output tree 
  mutable Float_t       fCurrentVertex; // Z-coordinate of primary vertex
  mutable AliESDFMD*    fESDObj;        // ESD output object
  Float_t               fNoiseFactor;   // Factor of noise to check
  Bool_t                fAngleCorrect;  // Whether to angle correct
  mutable Vertex_t      fVertexType;    // What kind of vertex we got
  AliESDEvent*          fESD;           // ESD object(?)
  Bool_t                fDiagnostics;   // Wheter to do diagnostics
  TH1*                  fDiagStep1;	// Diagnostics histogram
  TH1*                  fDiagStep2;	// Diagnostics histogram
  TH1*                  fDiagStep3;	// Diagnostics histogram
  TH1*                  fDiagStep4;	// Diagnostics histogram
  TH1*                  fDiagAll;	// Diagnostics histogram
  mutable Bool_t        fZS[3];         // Zero-suppredded?
  mutable UShort_t      fZSFactor[3];   // Noise factor for Zero-suppression
private:
   
  ClassDef(AliFMDReconstructor, 3)  // class for the FMD reconstruction
}; 
#endif
//____________________________________________________________________
//
// Local Variables:
//   mode: C++
// End:
//
// EOF
//
Commit	Line	Data
8f1cfb0c	1	#ifndef ALIFMDRECONSTRUCTOR_H
8f1cfb0c	2	#define ALIFMDRECONSTRUCTOR_H
4347b38f	3	//
	4	// Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights
	5	// reserved.
	6	//
121a60bd	7	// See cxx source for full Copyright notice
4347b38f	8	//
121a60bd	9	// AliFMDReconstructor.h
4347b38f	10	// Task Class for making TreeR for FMD
4347b38f	11	//
121a60bd	12	//-- Authors: Evgeny Karpechev (INR) and Alla Maevskaia (INR)
4347b38f	13	// Latest changes by Christian Holm Christensen <cholm@nbi.dk>
121a60bd	14	/* $Id$ */
c2fc1258	15	/** @file AliFMDReconstructor.h
	16	@author Christian Holm Christensen <cholm@nbi.dk>
	17	@date Mon Mar 27 12:47:09 2006
	18	@brief FMD reconstruction
	19	*/
8f1cfb0c	20
42403906	21	//____________________________________________________________________
0d0e6995	22	// Header guards in the header files speeds up the compilation
	23	// considerably. Please leave them in.
	24	#ifndef ALIRECONSTRUCTOR_H
	25	# include <AliReconstructor.h>
	26	#endif
d76c31f4	27	#include "AliLog.h"
d76c31f4	28
4347b38f	29	//____________________________________________________________________
1a1fdef7	30	class TTree;
4347b38f	31	class TClonesArray;
4347b38f	32	class AliFMDDigit;
4347b38f	33	class AliRawReader;
af885e0f	34	class AliESDEvent;
8f6ee336	35	class AliESDFMD;
9684be2f	36	class TH1;
9684be2f	37
e802be3e	38
9f662337	39	/** @defgroup FMD_rec Reconstruction */
4347b38f	40	//____________________________________________________________________
50b9d194	41	/**
	42	* @brief This is a class that reconstructs AliFMDRecPoint objects
	43	* from of Digits.
	44	*
	45	* This class reads either digits from a TClonesArray or raw data
	46	* from a DDL file (or similar), and applies calibrations to get
	47	* psuedo-inclusive multiplicities per strip.
	48	*
	49	* @ingroup FMD_rec
9f662337	50	*/
121a60bd	51	class AliFMDReconstructor: public AliReconstructor
121a60bd	52	{
4347b38f	53	public:
50b9d194	54	/**
	55	* CTOR
	56	*/
4347b38f	57	AliFMDReconstructor();
50b9d194	58	/**
	59	* DTOR
	60	*/
56b1929b	61	virtual ~AliFMDReconstructor();
4347b38f	62
50b9d194	63	/**
	64	* Initialize the reconstructor. Here, we initialize the geometry
	65	* manager, and finds the local to global transformations from the
	66	* geometry. The calibration parameter manager is also
	67	* initialized (meaning that the calibration parameters is read
	68	* from CDB).
	69	*/
d76c31f4	70	virtual void Init();
50b9d194	71	/**
	72	* Flag that we can convert raw data into digits.
	73	*
	74	* @return always @c true
	75	*/
1a1fdef7	76	virtual Bool_t HasDigitConversion() const { return kTRUE; }
50b9d194	77	/**
	78	* Convert raw data read from the AliRawReader @a reader into
	79	* digits. This is done using AliFMDRawReader and
	80	* AliFMDAltroReader. The digits are put in the passed TTree @a
	81	* digitsTree.
	82	*
	83	* @param reader Raw reader.
	84	* @param digitsTree Tree to store read digits in.
	85	*/
1a1fdef7	86	virtual void ConvertDigits(AliRawReader* reader, TTree* digitsTree) const;
50b9d194	87	/**
	88	* Reconstruct one event from the digits passed in @a digitsTree.
	89	* The member function creates AliFMDRecPoint objects and stores
	90	* them on the output tree @a clusterTree. An FMD ESD object is
	91	* created in parallel.
	92	*
	93	* @param digitsTree Tree holding the digits of this event
	94	* @param clusterTree Tree to store AliFMDRecPoint objects in.
	95	*/
1a1fdef7	96	virtual void Reconstruct(TTree* digitsTree, TTree* clusterTree) const;
50b9d194	97	/**
	98	* Not used
	99	* @todo Implement this, such that we'll reconstruct directly from
	100	* the read ADC values rather than going via an intermedant
	101	* TClonesArray of AliFMDDigits
	102	*/
ddaa8027	103	virtual void Reconstruct(AliRawReader , TTree) const;
50b9d194	104	/**
	105	* Put in the ESD data, the FMD ESD data. The object created by
	106	* the Reconstruct member function is copied to the ESD object.
	107	*
	108	* @param digitsTree Tree of digits for this event - not used
	109	* @param clusterTree Tree of reconstructed points for this event -
	110	* not used.
	111	* @param esd ESD object to store data in.
	112	*/
1a1fdef7	113	virtual void FillESD(TTree* digitsTree, TTree* clusterTree,
af885e0f	114	AliESDEvent* esd) const;
50b9d194	115	/**
	116	* Forwards to above member function
	117	*/
ddaa8027	118	virtual void FillESD(AliRawReader, TTree clusterTree,
ddaa8027	119	AliESDEvent* esd) const;
faf80567	120
	121	/**
	122	* Create SDigits from raw data
	123	*
	124	* @param reader The raw reader
	125	* @param sdigits Array to fill with AliFMDSDigit objects.
	126	*/
	127	virtual void Digitize(AliRawReader* reader,
	128	TClonesArray* sdigits) const;
	129
50b9d194	130	/**
	131	* Not used
	132	*/
af885e0f	133	virtual void SetESD(AliESDEvent* esd) { fESD = esd; }
50b9d194	134	/**
	135	* Set the noise factor
	136	*
	137	* @param f Factor to use
	138	*/
a9579262	139	virtual void SetNoiseFactor(Float_t f=3) { fNoiseFactor = f; }
50b9d194	140	/**
	141	* Set whether we should do angle correction or nor
	142	*
	143	* @param use If true, do angle correction
	144	*/
a9579262	145	virtual void SetAngleCorrect(Bool_t use=kTRUE) { fAngleCorrect = use; }
50b9d194	146	/**
	147	* Set whether we want to do diagnostics. If this is enabled, a
	148	* file named @c FMD.Diag.root will be made. It contains a set of
	149	* histograms for each event, filed in separate directories in the
	150	* file. The histograms are
	151	* @verbatim
	152	* diagStep1 Read ADC vs. Noise surpressed ADC
	153	* diagStep2 Noise surpressed ADC vs. calculated Energy dep.
	154	* diagStep3 Energy deposition vs. angle corrected Energy dep.
	155	* diagStep4 Energy deposition vs. calculated multiplicity
	156	* diagAll Read ADC vs. calculated multiplicity
	157	* @endverbatim
	158	*
	159	* @param use If true, make the diagnostics file
	160	*/
9684be2f	161	void SetDiagnose(Bool_t use=kTRUE) { fDiagnostics = use; }
4347b38f	162	protected:
50b9d194	163	/**
	164	* Copy CTOR
	165	*
	166	* @param other Object to copy from.
	167	*/
0e73cae6	168	AliFMDReconstructor(const AliFMDReconstructor& other);
50b9d194	169	/**
	170	* Assignment operator
	171	*
	172	* @param other Object to assign from
	173	*
	174	* @return reference to this object
	175	*/
0e73cae6	176	AliFMDReconstructor& operator=(const AliFMDReconstructor& other);
50b9d194	177	/**
	178	* Try to get the vertex from either ESD or generator header. Sets
	179	* @c fCurrentVertex to the found Z posistion of the vertex (if
	180	* found), and sets the flag @c fVertexType accordingly
	181	*/
9684be2f	182	virtual void GetVertex() const;
50b9d194	183	/**
	184	* Process AliFMDDigit objects in @a digits. For each digit, find
	185	* the psuedo-rapidity @f$ \eta@f$, azimuthal angle @f$ \varphi@f$,
	186	* energy deposited @f$ E@f$, and psuedo-inclusive multiplicity @f$
	187	* M@f$.
	188	*
	189	* @param digits Array of digits.
	190	*/
e802be3e	191	virtual void ProcessDigits(TClonesArray* digits) const;
50b9d194	192	/**
	193	* Process a single digit
	194	*
	195	* @param digit Digiti to process
	196	*/
	197	virtual void ProcessDigit(AliFMDDigit* digit) const;
	198	/**
	199	* Process the signal from a single strip.
	200	*
	201	* @param det Detector number
	202	* @param rng Ring identifier
	203	* @param sec Sector number
	204	* @param str Strip number
	205	* @param adc Number of ADC counts for this strip
	206	*/
	207	virtual void ProcessSignal(UShort_t det,
	208	Char_t rng,
	209	UShort_t sec,
	210	UShort_t str,
	211	Short_t adc) const;
faf80567	212	/**
	213	* Process the signal from a single strip.
	214	*
	215	* @param sdigits Array to fill
	216	* @param det Detector number
	217	* @param rng Ring identifier
	218	* @param sec Sector number
	219	* @param str Strip number
	220	* @param sam Sample number
	221	* @param adc Number of ADC counts for this strip
	222	*/
	223	virtual void DigitizeSignal(TClonesArray* sdigits,
	224	UShort_t det,
	225	Char_t rng,
	226	UShort_t sec,
	227	UShort_t str,
	228	UShort_t sam,
	229	Short_t adc) const;
	230	/**
	231	* Subtract the pedestal off the ADC counts.
	232	*
	233	* @param det Detector number
	234	* @param rng Ring identifier
	235	* @param sec Sector number
	236	* @param str Strip number
	237	* @param adc ADC counts
	238	* @param noiseFactor If pedestal substracted pedestal is less then
	239	* this times the noise, then consider this to be 0.
	240	* @param zsEnabled Whether zero-suppression is on.
	241	* @param zsNoiseFactor Noise factor used in on-line pedestal
	242	* subtraction.
	243	*
	244	* @return The pedestal subtracted ADC counts (possibly 0), or @c
	245	* USHRT_MAX in case of problems.
	246	*/
	247	virtual UShort_t SubtractPedestal(UShort_t det,
	248	Char_t rng,
	249	UShort_t sec,
	250	UShort_t str,
	251	UShort_t adc,
	252	Float_t noiseFactor,
	253	Bool_t zsEnabled,
	254	UShort_t zsNoiseFactor) const;
50b9d194	255	/**
	256	* Substract pedestals from raw ADC in @a digit
	257	*
	258	* @param det Detector number
	259	* @param rng Ring identifier
	260	* @param sec Sector number
	261	* @param str Strip number
	262	* @param adc Number of ADC counts
	263	*
	264	* @return Pedestal subtracted ADC count.
	265	*/
	266	virtual UShort_t SubtractPedestal(UShort_t det,
	267	Char_t rng,
	268	UShort_t sec,
	269	UShort_t str,
	270	Short_t adc) const;
	271	/**
	272	* Converts number of ADC counts to energy deposited. This is
	273	* done by
	274	* @f[
	275	* E_i = A_i g_i
	276	* @f]
	277	* where @f$ A_i@f$ is the pedestal subtracted ADC counts, and @f$
	278	* g_i@f$ is the gain for the @f$ i^{\mbox{th}}@f$ strip.
	279	*
	280	* @param det Detector number
	281	* @param rng Ring identifier
	282	* @param sec Sector number
	283	* @param str Strip number
	284	* @param eta Psuedo-rapidity of digit.
	285	* @param count Pedestal subtracted ADC counts
	286	*
	287	* @return Energy deposited @f$ E_i@f$
	288	*/
faf80567	289	virtual Float_t Adc2Energy(UShort_t det,
	290	Char_t rng,
	291	UShort_t sec,
	292	UShort_t str,
	293	UShort_t count) const;
	294	/**
	295	* Converts number of ADC counts to energy deposited. This is
	296	* done by
	297	* @f[
	298	* E_i = A_i g_i
	299	* @f]
	300	* where @f$ A_i@f$ is the pedestal subtracted ADC counts, and @f$
	301	* g_i@f$ is the gain for the @f$ i^{\mbox{th}}@f$ strip.
	302	*
	303	* @param det Detector number
	304	* @param rng Ring identifier
	305	* @param sec Sector number
	306	* @param str Strip number
	307	* @param eta Psuedo-rapidity of digit.
	308	* @param count Pedestal subtracted ADC counts
	309	*
	310	* @return Energy deposited @f$ E_i@f$
	311	*/
50b9d194	312	virtual Float_t Adc2Energy(UShort_t det,
	313	Char_t rng,
	314	UShort_t sec,
	315	UShort_t str,
	316	Float_t eta,
8f6ee336	317	UShort_t count) const;
50b9d194	318	/**
	319	* Converts an energy signal to number of particles. In this
	320	* implementation, it's done by
	321	* @f[
	322	* M_i = E_i / E_{\mbox{MIP}}
	323	* @f]
	324	* where @f$ E_i@f$ is the energy deposited, and
	325	* @f$ E_{\mbox{MIP}}@f$ is the average energy deposited by a
	326	* minimum ionizing particle
	327	*
	328	* @param det Detector number
	329	* @param rng Ring identifier
	330	* @param sec Sector number
	331	* @param str Strip number
	332	* @param eta On return, psuedo-rapidity @f$ \eta@f$
	333	* @param phi On return, azimuthal angle @f$ \varphi@f$
	334	* @param edep Energy deposited @f$ E_i@f$
	335	*
	336	* @return Psuedo-inclusive multiplicity @f$ M@f$
	337	*/
	338	virtual Float_t Energy2Multiplicity(UShort_t det,
	339	Char_t rng,
	340	UShort_t sec,
	341	UShort_t str,
	342	Float_t edep) const;
	343	/**
	344	* Calculate the physical coordinates psuedo-rapidity @f$ \eta@f$,
	345	* azimuthal angle @f$ \varphi@f$ of the strip corresponding to
	346	* the digit @a digit. This is done by using the information
	347	* obtained, and previously cached by AliFMDGeometry, from the
	348	* TGeoManager.
	349	*
	350	* @param det Detector number
	351	* @param rng Ring identifier
	352	* @param sec Sector number
	353	* @param str Strip number
	354	* @param eta On return, psuedo-rapidity @f$ \eta@f$
	355	* @param phi On return, azimuthal angle @f$ \varphi@f$
	356	*/
	357	virtual void PhysicalCoordinates(UShort_t det,
	358	Char_t rng,
	359	UShort_t sec,
	360	UShort_t str,
	361	Float_t& eta,
8f6ee336	362	Float_t& phi) const;
42403906	363
9684be2f	364	enum Vertex_t {
	365	kNoVertex, // Got no vertex
	366	kGenVertex, // Got generator vertex
	367	kESDVertex // Got ESD vertex
	368	};
8f6ee336	369	mutable TClonesArray* fMult; // Cache of RecPoints
	370	mutable Int_t fNMult; // Number of entries in fMult
	371	mutable TTree* fTreeR; // Output tree
e802be3e	372	mutable Float_t fCurrentVertex; // Z-coordinate of primary vertex
8f6ee336	373	mutable AliESDFMD* fESDObj; // ESD output object
9684be2f	374	Float_t fNoiseFactor; // Factor of noise to check
	375	Bool_t fAngleCorrect; // Whether to angle correct
	376	mutable Vertex_t fVertexType; // What kind of vertex we got
af885e0f	377	AliESDEvent* fESD; // ESD object(?)
9684be2f	378	Bool_t fDiagnostics; // Wheter to do diagnostics
	379	TH1* fDiagStep1; // Diagnostics histogram
	380	TH1* fDiagStep2; // Diagnostics histogram
	381	TH1* fDiagStep3; // Diagnostics histogram
	382	TH1* fDiagStep4; // Diagnostics histogram
	383	TH1* fDiagAll; // Diagnostics histogram
5cf05dbb	384	mutable Bool_t fZS[3]; // Zero-suppredded?
5cf05dbb	385	mutable UShort_t fZSFactor[3]; // Noise factor for Zero-suppression
02a27b50	386	private:
d76c31f4	387
d76c31f4	388	ClassDef(AliFMDReconstructor, 3) // class for the FMD reconstruction
121a60bd	389	};
121a60bd	390	#endif
4347b38f	391	//____________________________________________________________________
4347b38f	392	//
0d0e6995	393	// Local Variables:
	394	// mode: C++
	395	// End:
	396	//
4347b38f	397	// EOF
4347b38f	398	//