PWG/FLOW/Base/AliFlowEventSimple.h

   1 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   2 * See cxx source for full Copyright notice */
   3 /* $Id$ */
   4
   5 /*****************************************************************
   6   AliFlowEventSimple: A simple event
   7   for flow analysis
   8
   9   origin: Naomi van der Kolk (kolk@nikhef.nl)
  10           Ante Bilandzic     (anteb@nikhef.nl)
  11           Raimond Snellings  (Raimond.Snellings@nikhef.nl)
  12   mods:   Mikolaj Krzewicki  (mikolaj.krzewicki@cern.ch)
  13 *****************************************************************/
  14
  15 #ifndef ALIFLOWEVENTSIMPLE_H
  16 #define ALIFLOWEVENTSIMPLE_H
  17
  18 #include "TObject.h"
  19 #include "TParameter.h"
  20 #include "TMath.h"
  21 class TTree;
  22 class TF1;
  23 class AliFlowVector;
  24 class AliFlowTrackSimple;
  25 class AliFlowTrackSimpleCuts;
  26
  27 class AliFlowEventSimple: public TObject {
  28
  29  public:
  30
  31   enum ConstructionMethod {kEmpty,kGenerate};
  32
  33   AliFlowEventSimple();
  34   AliFlowEventSimple( Int_t nParticles,
  35                       ConstructionMethod m=kEmpty,
  36                       TF1* ptDist=NULL,
  37                       Double_t phiMin=0.0,
  38                       Double_t phiMax=TMath::TwoPi(),
  39                       Double_t etaMin=-1.0,
  40                       Double_t etaMax= 1.0 );
  41   AliFlowEventSimple(TTree* anInput, const AliFlowTrackSimpleCuts* rpCuts, const AliFlowTrackSimpleCuts* poiCuts);
  42   AliFlowEventSimple(const AliFlowEventSimple& anEvent);
  43   AliFlowEventSimple& operator=(const AliFlowEventSimple& anEvent);
  44   virtual  ~AliFlowEventSimple();
  45
  46   Bool_t  IsFolder() const {return kTRUE;};
  47   void    Browse(TBrowser *b);
  48   void    Print(Option_t* option = "") const;      //method to print stats
  49
  50   Int_t    NumberOfTracks() const                   { return fNumberOfTracks; }
  51   Int_t    GetReferenceMultiplicity() const         { return fReferenceMultiplicity; }
  52   void     SetReferenceMultiplicity( Int_t m )      { fReferenceMultiplicity = m; }
  53   Int_t    GetEventNSelTracksRP() const             { return fNumberOfRPs; }
  54   void     SetEventNSelTracksRP(Int_t nr)           { fNumberOfRPs = nr; }
  55   Int_t    GetEventNSelTracksPOI() const            { return fNumberOfPOIs; }
  56   void     SetEventNSelTracksPOI(Int_t np)          { fNumberOfPOIs = np; }
  57   Int_t    GetNumberOfRPs() const                   { return fNumberOfRPs; }
  58   void     SetNumberOfRPs( Int_t nr )               { fNumberOfRPs=nr; }
  59   Int_t    GetNumberOfPOIs() const                  { return fNumberOfPOIs; }
  60   void     SetNumberOfPOIs( Int_t np )              { fNumberOfPOIs=np; }
  61   Double_t GetMCReactionPlaneAngle() const          { return fMCReactionPlaneAngle; }
  62   void     SetMCReactionPlaneAngle(Double_t fPhiRP) { fMCReactionPlaneAngle=fPhiRP; fMCReactionPlaneAngleIsSet=kTRUE; }
  63   Bool_t   IsSetMCReactionPlaneAngle() const        { return fMCReactionPlaneAngleIsSet; }
  64   void     SetAfterBurnerPrecision(Double_t p)      { fAfterBurnerPrecision=p; }
  65   Double_t GetAfterBurnerPrecision() const          { return fAfterBurnerPrecision; }
  66   void     SetUserModified(Bool_t s=kTRUE)          { fUserModified=s; }
  67   Bool_t   IsUserModified() const                   { return fUserModified; }
  68
  69   void ResolutionPt(Double_t res);
  70   void TagSubeventsInEta(Double_t etaMinA, Double_t etaMaxA, Double_t etaMinB, Double_t etaMaxB );
  71   void TagSubeventsByCharge();
  72   void TagRP(const AliFlowTrackSimpleCuts* cuts );
  73   void TagPOI(const AliFlowTrackSimpleCuts* cuts );
  74   void CloneTracks(Int_t n);
  75   void AddV1( Double_t v1 );
  76   void AddV2( Double_t v2 );
  77   void AddV3( Double_t v3 );
  78   void AddV4( Double_t v4 );
  79   void AddV5( Double_t v5 );
  80   void AddFlow( Double_t v1, Double_t v2, Double_t v3, Double_t v4, Double_t v5 );
  81   void AddFlow(Double_t v1, Double_t v2, Double_t v3, Double_t v4, Double_t v5,
  82                Double_t rp1, Double_t rp2, Double_t rp3, Double_t rp4, Double_t rp5 );
  83   void AddV2( TF1* ptDepV2 );
  84   void DefineDeadZone( Double_t etaMin, Double_t etaMax, Double_t phiMin, Double_t phiMax );
  85   Int_t CleanUpDeadTracks();
  86   void ClearFast();
  87
  88   static TF1* SimplePtSpectrum();
  89   static TF1* SimplePtDepV2();
  90
  91   AliFlowTrackSimple* GetTrack(Int_t i);
  92   void AddTrack( AliFlowTrackSimple* track );
  93   AliFlowTrackSimple* MakeNewTrack();
  94
  95   AliFlowVector GetQ(Int_t n=2, TList *weightsList=NULL, Bool_t usePhiWeights=kFALSE, Bool_t usePtWeights=kFALSE, Bool_t useEtaWeights=kFALSE);
  96   void Get2Qsub(AliFlowVector* Qarray, Int_t n=2, TList *weightsList=NULL, Bool_t usePhiWeights=kFALSE, Bool_t usePtWeights=kFALSE, Bool_t useEtaWeights=kFALSE);
  97
  98  protected:
  99   virtual void Generate( Int_t nParticles,
 100                          TF1* ptDist=NULL,
 101                          Double_t phiMin=0.0,
 102                          Double_t phiMax=TMath::TwoPi(),
 103                          Double_t etaMin=-1.0,
 104                          Double_t etaMax= 1.0 );
 105
 106   //data members
 107   TObjArray*              fTrackCollection;           //-> collection of tracks
 108   Int_t                   fReferenceMultiplicity;     // reference multiplicity
 109   Int_t                   fNumberOfTracks;            // number of tracks
 110   Int_t                   fNumberOfRPs;               // number of tracks that have passed the RP selection
 111   Int_t                   fNumberOfPOIs;              // number of tracks that have passed the POI selection
 112   Double_t                fMCReactionPlaneAngle;      // the angle of the reaction plane from the MC truth
 113   Bool_t                  fMCReactionPlaneAngleIsSet; // did we set it from MC?
 114   Double_t                fAfterBurnerPrecision;      // iteration precision in afterburner
 115   Bool_t                  fUserModified;              // did we modify the event in any way (afterburner etc) ?
 116   TParameter<Int_t>*      fNumberOfTracksWrap;        //! number of tracks in TBrowser
 117   TParameter<Int_t>*      fNumberOfRPsWrap;           //! number of tracks that have passed the RP selection in TBrowser
 118   TParameter<Int_t>*      fNumberOfPOIsWrap;          //! number of tracks that have passed the POI selection in TBrowser
 119   TParameter<Double_t>*   fMCReactionPlaneAngleWrap;  //! the angle of the reaction plane from the MC truth in TBrowser
 120
 121   ClassDef(AliFlowEventSimple,1)
 122 };
 123
 124 #endif
 125
 126