1 #ifndef ALIITSPLANEEFFSSD_H
2 #define ALIITSPLANEEFFSSD_H
3 /* Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 #include "AliITSPlaneEff.h"
10 ///////////////////////////////////////////
12 // ITS Plane Efficiency class //
14 // Origin: Giuseppe.Bruno@ba.infn.it //
15 ///////////////////////////////////////////
19 class AliITSPlaneEffSSD : public AliITSPlaneEff {
21 AliITSPlaneEffSSD(); // default constructor
22 virtual ~AliITSPlaneEffSSD(); // destructror
24 AliITSPlaneEffSSD(const AliITSPlaneEffSSD &source);
26 AliITSPlaneEffSSD& operator=(const AliITSPlaneEffSSD &s);
27 virtual AliITSPlaneEff& operator=(const AliITSPlaneEff &source);
28 // Simple way to add another class (i.e. statistics).
29 AliITSPlaneEffSSD& operator +=( const AliITSPlaneEffSSD &add);
30 // Getters for average Plane efficiency (icluding dead/noisy)
31 Double_t PlaneEff(const UInt_t mod) const;
32 Double_t ErrPlaneEff(const UInt_t mod) const;
33 // Methods to update the Plane efficiency (specific of the SSD segmentation)
34 Bool_t UpDatePlaneEff(const Bool_t Kfound, const UInt_t mod);
36 enum {kNModule = 1698}; // The number of modules
37 enum {kNChip = 6}; // The number of chips per side of a module (2 sides: 12 chips)
38 enum {kNSide = 2}; // The number of sides of a module (p and n side)
39 enum {kNStrip = 128}; // The number of strips per chip (in a module 2*768 strips)
41 enum {kNHisto = kNModule}; // The number of histograms: module by module.
42 //enum {kNclu = 3}; // Build specific histos of residuals up to cluster size kNclu.
43 // If you change them, then you must change implementation of
44 // the method FillHistos.
46 // Plane efficiency for active detector (excluding dead/noisy channels)
47 // access to DB is needed
48 virtual Double_t LivePlaneEff(UInt_t mod) const;
49 virtual Double_t ErrLivePlaneEff(UInt_t mod) const;
50 // Compute the fraction of Live area (of the module for the SSD)
51 virtual Double_t GetFracLive(const UInt_t mod) const;
52 // Compute the fraction of bad (i.e. dead and noisy) area (of the module for the SSD)
53 virtual Double_t GetFracBad(const UInt_t mod) const;
54 virtual Bool_t WriteIntoCDB() const;
55 virtual Bool_t ReadFromCDB(); // this method reads Data Members (statistics) from DataBase
56 virtual Bool_t AddFromCDB() // this method updates Data Members (statistics) from DataBase
57 {AliError("AddFromCDB: Still To be implemented"); return kFALSE;}
58 // method to locate a basic block from Detector Local coordinate (to be used in tracking)
59 // see file cxx for numbering convention.
60 // here idet runs from 0 to 747 for layer 4 and from 0 to 949 for layer 5
61 UInt_t GetKeyFromDetLocCoord(Int_t ilay,Int_t idet, Float_t, Float_t locz) const;
62 UInt_t Nblock() const; // return the number of basic blocks
63 // compute the geometrical limit of a basic block (chip) in detector local coordinate system
64 Bool_t GetBlockBoundaries(const UInt_t key,Float_t& xmn,Float_t& xmx,Float_t& zmn,Float_t& zmx) const;
65 // Methods for dealing with auxiliary histograms
66 // method to set on/off the creation/updates of histograms (Histos are created/destroyed)
67 void SetCreateHistos(Bool_t his=kFALSE)
68 {fHis=his; if(fHis) {DeleteHistos(); InitHistos();} else DeleteHistos(); return; }
69 Bool_t FillHistos(UInt_t key, Bool_t found, Float_t trackXZ[2], Float_t clusterXZ[2], Int_t ctXZ[2]);
70 Bool_t WriteHistosToFile(TString filename="PlaneEffSSDHistos.root",Option_t* option = "RECREATE");
71 Bool_t ReadHistosFromFile(TString filename="PlaneEffSSDHistos.root"); // histos must exist already !
72 // This method increases the
73 // statistics of histos by adding
74 // those of the input file.
76 virtual void Copy(TObject &obj) const;
77 void CopyHistos(AliITSPlaneEffSSD& target) const; // copy only histograms to target
78 Int_t GetMissingTracksForGivenEff(Double_t eff, Double_t RelErr, UInt_t im) const;
81 Int_t fFound[kNModule]; // number of associated clusters in a given module
82 Int_t fTried[kNModule]; // number of tracks used for module efficiency evaluation
84 TH1F **fHisResX; //! histos with residual distribution (track-cluster) along local X (r-phi)
85 TH1F **fHisResZ; //! histos with residual distribution (track-cluster) along local Z
86 TH2F **fHisResXZ; //! 2-d histos with residual distribution (track-cluster) along local X and Z
87 TH2I **fHisClusterSize; //! histos with cluster-size distribution
89 UInt_t GetKey(const UInt_t mod) const; // unique key to locate the basic
90 // block of the SSD (the module itself)
91 UInt_t GetModFromKey(const UInt_t key) const;
92 void GetBadInModule(const UInt_t mod, UInt_t& bad) const;
96 ClassDef(AliITSPlaneEffSSD,2) // SSD Plane Efficiency class
99 inline UInt_t AliITSPlaneEffSSD::Nblock() const {return kNModule;}
100 inline Bool_t AliITSPlaneEffSSD::GetBlockBoundaries(const UInt_t key,Float_t& xmn,Float_t& xmx,
101 Float_t& zmn,Float_t& zmx) const {
102 // This method return the geometrical boundaries of the active volume of a given
103 // basic block, in the detector reference system.
106 {AliWarning("GetBlockBoundaries: you asked for a non existing key"); return kFALSE;}
107 const Float_t kDxDefault = 72960.; // For Plane Eff. purpouses, default values
108 const Float_t kDzDefault = 40000.; // are precise enough !!!
109 const Float_t kconv = 1.0E-04; //converts microns to cm.
110 xmn=-kconv*kDxDefault/2.; xmx=kconv*kDxDefault/2.;
111 zmn=-kconv*kDzDefault/2.; zmx=kconv*kDzDefault/2.;