[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 AliFMDRecoParam;
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 
   *
   * @param esd ESD structure to get Vz from
   */
  virtual void GetVertex(AliESDEvent* esd) 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;
  /** 
   * Set-up reconstructor to use values from reconstruction
   * parameters, if present, for this event.   If the argument @a set
   * is @c false, then restore preset values. 
   * 
   * @param set 
   */  
  virtual void UseRecoParam(Bool_t set=kTRUE) const;
  /** 
   * Utility member function to get the reconstruction parameters for 
   * this event
   * 
   * @return Pointer to AliFMDRecoParam object or null if not
   * available. 
   */
  const AliFMDRecoParam* GetParameters() const;
  /** 
   * Get the numeric identifier of this detector
   * 
   * @return Should be 12
   */  
  Int_t GetIdentifier() 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
  mutable Float_t       fNoiseFactor;   // Factor of noise to check
  mutable 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;
818fff8d	36	class AliFMDRecoParam;
9684be2f	37	class TH1;
9684be2f	38
e802be3e	39
9f662337	40	/** @defgroup FMD_rec Reconstruction */
4347b38f	41	//____________________________________________________________________
50b9d194	42	/**
	43	* @brief This is a class that reconstructs AliFMDRecPoint objects
	44	* from of Digits.
	45	*
	46	* This class reads either digits from a TClonesArray or raw data
	47	* from a DDL file (or similar), and applies calibrations to get
	48	* psuedo-inclusive multiplicities per strip.
	49	*
	50	* @ingroup FMD_rec
9f662337	51	*/
121a60bd	52	class AliFMDReconstructor: public AliReconstructor
121a60bd	53	{
4347b38f	54	public:
50b9d194	55	/**
	56	* CTOR
	57	*/
4347b38f	58	AliFMDReconstructor();
50b9d194	59	/**
	60	* DTOR
	61	*/
56b1929b	62	virtual ~AliFMDReconstructor();
4347b38f	63
50b9d194	64	/**
	65	* Initialize the reconstructor. Here, we initialize the geometry
	66	* manager, and finds the local to global transformations from the
	67	* geometry. The calibration parameter manager is also
	68	* initialized (meaning that the calibration parameters is read
	69	* from CDB).
	70	*/
d76c31f4	71	virtual void Init();
50b9d194	72	/**
	73	* Flag that we can convert raw data into digits.
	74	*
	75	* @return always @c true
	76	*/
1a1fdef7	77	virtual Bool_t HasDigitConversion() const { return kTRUE; }
50b9d194	78	/**
	79	* Convert raw data read from the AliRawReader @a reader into
	80	* digits. This is done using AliFMDRawReader and
	81	* AliFMDAltroReader. The digits are put in the passed TTree @a
	82	* digitsTree.
	83	*
	84	* @param reader Raw reader.
	85	* @param digitsTree Tree to store read digits in.
	86	*/
1a1fdef7	87	virtual void ConvertDigits(AliRawReader* reader, TTree* digitsTree) const;
50b9d194	88	/**
	89	* Reconstruct one event from the digits passed in @a digitsTree.
	90	* The member function creates AliFMDRecPoint objects and stores
	91	* them on the output tree @a clusterTree. An FMD ESD object is
	92	* created in parallel.
	93	*
	94	* @param digitsTree Tree holding the digits of this event
	95	* @param clusterTree Tree to store AliFMDRecPoint objects in.
	96	*/
1a1fdef7	97	virtual void Reconstruct(TTree* digitsTree, TTree* clusterTree) const;
50b9d194	98	/**
	99	* Not used
	100	* @todo Implement this, such that we'll reconstruct directly from
	101	* the read ADC values rather than going via an intermedant
	102	* TClonesArray of AliFMDDigits
	103	*/
ddaa8027	104	virtual void Reconstruct(AliRawReader , TTree) const;
50b9d194	105	/**
	106	* Put in the ESD data, the FMD ESD data. The object created by
	107	* the Reconstruct member function is copied to the ESD object.
	108	*
	109	* @param digitsTree Tree of digits for this event - not used
	110	* @param clusterTree Tree of reconstructed points for this event -
	111	* not used.
	112	* @param esd ESD object to store data in.
	113	*/
1a1fdef7	114	virtual void FillESD(TTree* digitsTree, TTree* clusterTree,
af885e0f	115	AliESDEvent* esd) const;
50b9d194	116	/**
	117	* Forwards to above member function
	118	*/
ddaa8027	119	virtual void FillESD(AliRawReader, TTree clusterTree,
ddaa8027	120	AliESDEvent* esd) const;
faf80567	121
	122	/**
	123	* Create SDigits from raw data
	124	*
	125	* @param reader The raw reader
	126	* @param sdigits Array to fill with AliFMDSDigit objects.
	127	*/
	128	virtual void Digitize(AliRawReader* reader,
	129	TClonesArray* sdigits) const;
	130
50b9d194	131	/**
	132	* Not used
	133	*/
af885e0f	134	virtual void SetESD(AliESDEvent* esd) { fESD = esd; }
50b9d194	135	/**
	136	* Set the noise factor
	137	*
	138	* @param f Factor to use
	139	*/
a9579262	140	virtual void SetNoiseFactor(Float_t f=3) { fNoiseFactor = f; }
50b9d194	141	/**
	142	* Set whether we should do angle correction or nor
	143	*
	144	* @param use If true, do angle correction
	145	*/
a9579262	146	virtual void SetAngleCorrect(Bool_t use=kTRUE) { fAngleCorrect = use; }
50b9d194	147	/**
	148	* Set whether we want to do diagnostics. If this is enabled, a
	149	* file named @c FMD.Diag.root will be made. It contains a set of
	150	* histograms for each event, filed in separate directories in the
	151	* file. The histograms are
	152	* @verbatim
	153	* diagStep1 Read ADC vs. Noise surpressed ADC
	154	* diagStep2 Noise surpressed ADC vs. calculated Energy dep.
	155	* diagStep3 Energy deposition vs. angle corrected Energy dep.
	156	* diagStep4 Energy deposition vs. calculated multiplicity
	157	* diagAll Read ADC vs. calculated multiplicity
	158	* @endverbatim
	159	*
	160	* @param use If true, make the diagnostics file
	161	*/
9684be2f	162	void SetDiagnose(Bool_t use=kTRUE) { fDiagnostics = use; }
4347b38f	163	protected:
50b9d194	164	/**
	165	* Copy CTOR
	166	*
	167	* @param other Object to copy from.
	168	*/
0e73cae6	169	AliFMDReconstructor(const AliFMDReconstructor& other);
50b9d194	170	/**
	171	* Assignment operator
	172	*
	173	* @param other Object to assign from
	174	*
	175	* @return reference to this object
	176	*/
0e73cae6	177	AliFMDReconstructor& operator=(const AliFMDReconstructor& other);
50b9d194	178	/**
	179	* Try to get the vertex from either ESD or generator header. Sets
	180	* @c fCurrentVertex to the found Z posistion of the vertex (if
	181	* found), and sets the flag @c fVertexType accordingly
8983e5ae	182	*
8983e5ae	183	* @param esd ESD structure to get Vz from
50b9d194	184	*/
8983e5ae	185	virtual void GetVertex(AliESDEvent* esd) const;
50b9d194	186	/**
	187	* Process AliFMDDigit objects in @a digits. For each digit, find
	188	* the psuedo-rapidity @f$ \eta@f$, azimuthal angle @f$ \varphi@f$,
	189	* energy deposited @f$ E@f$, and psuedo-inclusive multiplicity @f$
	190	* M@f$.
	191	*
	192	* @param digits Array of digits.
	193	*/
e802be3e	194	virtual void ProcessDigits(TClonesArray* digits) const;
50b9d194	195	/**
	196	* Process a single digit
	197	*
	198	* @param digit Digiti to process
	199	*/
	200	virtual void ProcessDigit(AliFMDDigit* digit) const;
	201	/**
	202	* Process the signal from a single strip.
	203	*
	204	* @param det Detector number
	205	* @param rng Ring identifier
	206	* @param sec Sector number
	207	* @param str Strip number
	208	* @param adc Number of ADC counts for this strip
	209	*/
	210	virtual void ProcessSignal(UShort_t det,
	211	Char_t rng,
	212	UShort_t sec,
	213	UShort_t str,
	214	Short_t adc) const;
faf80567	215	/**
	216	* Process the signal from a single strip.
	217	*
	218	* @param sdigits Array to fill
	219	* @param det Detector number
	220	* @param rng Ring identifier
	221	* @param sec Sector number
	222	* @param str Strip number
	223	* @param sam Sample number
	224	* @param adc Number of ADC counts for this strip
	225	*/
	226	virtual void DigitizeSignal(TClonesArray* sdigits,
	227	UShort_t det,
	228	Char_t rng,
	229	UShort_t sec,
	230	UShort_t str,
	231	UShort_t sam,
	232	Short_t adc) const;
	233	/**
	234	* Subtract the pedestal off the ADC counts.
	235	*
	236	* @param det Detector number
	237	* @param rng Ring identifier
	238	* @param sec Sector number
	239	* @param str Strip number
	240	* @param adc ADC counts
	241	* @param noiseFactor If pedestal substracted pedestal is less then
	242	* this times the noise, then consider this to be 0.
	243	* @param zsEnabled Whether zero-suppression is on.
	244	* @param zsNoiseFactor Noise factor used in on-line pedestal
	245	* subtraction.
	246	*
	247	* @return The pedestal subtracted ADC counts (possibly 0), or @c
	248	* USHRT_MAX in case of problems.
	249	*/
	250	virtual UShort_t SubtractPedestal(UShort_t det,
	251	Char_t rng,
	252	UShort_t sec,
	253	UShort_t str,
	254	UShort_t adc,
	255	Float_t noiseFactor,
	256	Bool_t zsEnabled,
	257	UShort_t zsNoiseFactor) const;
50b9d194	258	/**
	259	* Substract pedestals from raw ADC in @a digit
	260	*
	261	* @param det Detector number
	262	* @param rng Ring identifier
	263	* @param sec Sector number
	264	* @param str Strip number
	265	* @param adc Number of ADC counts
	266	*
	267	* @return Pedestal subtracted ADC count.
	268	*/
	269	virtual UShort_t SubtractPedestal(UShort_t det,
	270	Char_t rng,
	271	UShort_t sec,
	272	UShort_t str,
	273	Short_t adc) const;
	274	/**
	275	* Converts number of ADC counts to energy deposited. This is
	276	* done by
	277	* @f[
	278	* E_i = A_i g_i
	279	* @f]
	280	* where @f$ A_i@f$ is the pedestal subtracted ADC counts, and @f$
	281	* g_i@f$ is the gain for the @f$ i^{\mbox{th}}@f$ strip.
	282	*
	283	* @param det Detector number
	284	* @param rng Ring identifier
	285	* @param sec Sector number
	286	* @param str Strip number
	287	* @param eta Psuedo-rapidity of digit.
	288	* @param count Pedestal subtracted ADC counts
	289	*
	290	* @return Energy deposited @f$ E_i@f$
	291	*/
faf80567	292	virtual Float_t Adc2Energy(UShort_t det,
	293	Char_t rng,
	294	UShort_t sec,
	295	UShort_t str,
	296	UShort_t count) const;
	297	/**
	298	* Converts number of ADC counts to energy deposited. This is
	299	* done by
	300	* @f[
	301	* E_i = A_i g_i
	302	* @f]
	303	* where @f$ A_i@f$ is the pedestal subtracted ADC counts, and @f$
	304	* g_i@f$ is the gain for the @f$ i^{\mbox{th}}@f$ strip.
	305	*
	306	* @param det Detector number
	307	* @param rng Ring identifier
	308	* @param sec Sector number
	309	* @param str Strip number
	310	* @param eta Psuedo-rapidity of digit.
	311	* @param count Pedestal subtracted ADC counts
	312	*
	313	* @return Energy deposited @f$ E_i@f$
	314	*/
50b9d194	315	virtual Float_t Adc2Energy(UShort_t det,
	316	Char_t rng,
	317	UShort_t sec,
	318	UShort_t str,
	319	Float_t eta,
8f6ee336	320	UShort_t count) const;
50b9d194	321	/**
	322	* Converts an energy signal to number of particles. In this
	323	* implementation, it's done by
	324	* @f[
	325	* M_i = E_i / E_{\mbox{MIP}}
	326	* @f]
	327	* where @f$ E_i@f$ is the energy deposited, and
	328	* @f$ E_{\mbox{MIP}}@f$ is the average energy deposited by a
	329	* minimum ionizing particle
	330	*
	331	* @param det Detector number
	332	* @param rng Ring identifier
	333	* @param sec Sector number
	334	* @param str Strip number
	335	* @param eta On return, psuedo-rapidity @f$ \eta@f$
	336	* @param phi On return, azimuthal angle @f$ \varphi@f$
	337	* @param edep Energy deposited @f$ E_i@f$
	338	*
	339	* @return Psuedo-inclusive multiplicity @f$ M@f$
	340	*/
	341	virtual Float_t Energy2Multiplicity(UShort_t det,
	342	Char_t rng,
	343	UShort_t sec,
	344	UShort_t str,
	345	Float_t edep) const;
	346	/**
	347	* Calculate the physical coordinates psuedo-rapidity @f$ \eta@f$,
	348	* azimuthal angle @f$ \varphi@f$ of the strip corresponding to
	349	* the digit @a digit. This is done by using the information
	350	* obtained, and previously cached by AliFMDGeometry, from the
	351	* TGeoManager.
	352	*
	353	* @param det Detector number
	354	* @param rng Ring identifier
	355	* @param sec Sector number
	356	* @param str Strip number
	357	* @param eta On return, psuedo-rapidity @f$ \eta@f$
	358	* @param phi On return, azimuthal angle @f$ \varphi@f$
	359	*/
	360	virtual void PhysicalCoordinates(UShort_t det,
	361	Char_t rng,
	362	UShort_t sec,
	363	UShort_t str,
	364	Float_t& eta,
8f6ee336	365	Float_t& phi) const;
818fff8d	366	/**
	367	* Set-up reconstructor to use values from reconstruction
	368	* parameters, if present, for this event. If the argument @a set
	369	* is @c false, then restore preset values.
	370	*
	371	* @param set
	372	*/
	373	virtual void UseRecoParam(Bool_t set=kTRUE) const;
	374	/**
	375	* Utility member function to get the reconstruction parameters for
	376	* this event
	377	*
	378	* @return Pointer to AliFMDRecoParam object or null if not
	379	* available.
	380	*/
	381	const AliFMDRecoParam* GetParameters() const;
	382	/**
	383	* Get the numeric identifier of this detector
	384	*
	385	* @return Should be 12
	386	*/
	387	Int_t GetIdentifier() const;
9684be2f	388	enum Vertex_t {
	389	kNoVertex, // Got no vertex
	390	kGenVertex, // Got generator vertex
	391	kESDVertex // Got ESD vertex
	392	};
8f6ee336	393	mutable TClonesArray* fMult; // Cache of RecPoints
	394	mutable Int_t fNMult; // Number of entries in fMult
	395	mutable TTree* fTreeR; // Output tree
e802be3e	396	mutable Float_t fCurrentVertex; // Z-coordinate of primary vertex
8f6ee336	397	mutable AliESDFMD* fESDObj; // ESD output object
818fff8d	398	mutable Float_t fNoiseFactor; // Factor of noise to check
818fff8d	399	mutable Bool_t fAngleCorrect; // Whether to angle correct
9684be2f	400	mutable Vertex_t fVertexType; // What kind of vertex we got
af885e0f	401	AliESDEvent* fESD; // ESD object(?)
9684be2f	402	Bool_t fDiagnostics; // Wheter to do diagnostics
	403	TH1* fDiagStep1; // Diagnostics histogram
	404	TH1* fDiagStep2; // Diagnostics histogram
	405	TH1* fDiagStep3; // Diagnostics histogram
	406	TH1* fDiagStep4; // Diagnostics histogram
	407	TH1* fDiagAll; // Diagnostics histogram
5cf05dbb	408	mutable Bool_t fZS[3]; // Zero-suppredded?
5cf05dbb	409	mutable UShort_t fZSFactor[3]; // Noise factor for Zero-suppression
02a27b50	410	private:
d76c31f4	411
d76c31f4	412	ClassDef(AliFMDReconstructor, 3) // class for the FMD reconstruction
121a60bd	413	};
121a60bd	414	#endif
4347b38f	415	//____________________________________________________________________
4347b38f	416	//
0d0e6995	417	// Local Variables:
	418	// mode: C++
	419	// End:
	420	//
4347b38f	421	// EOF
4347b38f	422	//