1 #ifndef ALIHBTPOSITIONRANDOMIZER_H
2 #define ALIHBTPOSITIONRANDOMIZER_H
4 #include "AliHBTReader.h"
12 class AliHBTPositionRandomizer: public AliHBTReader
15 enum EModelTypes{kGausBall,kCylinder,kCylinderSurf};
16 AliHBTPositionRandomizer();
17 AliHBTPositionRandomizer(AliHBTReader* reader);
19 Int_t Next(){return (fReader)?fReader->Next():1;}
20 void Rewind(){if(fReader) fReader->Rewind();}
22 Bool_t ReadsTracks() const {return (fReader)?fReader->ReadsTracks():kFALSE;}
23 Bool_t ReadsParticles() const {return (fReader)?fReader->ReadsParticles():kFALSE;}
25 Int_t Read(AliHBTRun* particles, AliHBTRun *tracks);
27 AliHBTEvent* GetParticleEvent() ;
28 AliHBTEvent* GetTrackEvent() ;
30 AliHBTEvent* GetParticleEvent(Int_t n);
31 AliHBTEvent* GetTrackEvent(Int_t n){return (fReader)?fReader->GetTrackEvent(n):0x0;}
32 Int_t GetNumberOfPartEvents(){return (fReader)?fReader->GetNumberOfPartEvents():0;}
33 Int_t GetNumberOfTrackEvents(){return (fReader)?fReader->GetNumberOfTrackEvents():0;}
34 virtual TH1I* GetTrackCounter() const {return (fReader)?fReader->GetTrackCounter():0x0;}
35 virtual void WriteTrackCounter() const {if(fReader) fReader->WriteTrackCounter();}
37 void Randomize(AliHBTEvent* event);
38 void Randomize(AliHBTRun* run);
39 void SetEventVertex(Double_t x, Double_t y,Double_t z);
41 void SetGaussianBall(Double_t r);
42 void SetGaussianBall(Double_t rx, Double_t ry, Double_t rz);
43 void SetCyllinderSurface(Double_t r, Double_t l);
46 void Randomize(Double_t& x,Double_t& y,Double_t&z, AliHBTParticle*p);
47 Int_t ReadNext(){return (fReader)?fReader->Next():1;}
49 AliHBTReader* fReader;
50 AliHBTRndm* fRandomizer;
54 Bool_t fAddToExistingPos;
55 Bool_t fOnlyParticlesFromVertex;
57 Double_t fVX; //vertex position
58 Double_t fVY; //vertex position
59 Double_t fVZ; //vertex position
61 ClassDef(AliHBTPositionRandomizer,1)
64 class AliHBTRndm: public TObject
69 virtual void Randomize(Double_t& x,Double_t& y,Double_t&z, AliHBTParticle*p) = 0;
70 ClassDef(AliHBTRndm,1)
73 class AliHBTRndmGaussBall: public AliHBTRndm
76 AliHBTRndmGaussBall();
77 AliHBTRndmGaussBall(Float_t r);
78 AliHBTRndmGaussBall(Float_t rx, Float_t ry, Float_t rz);
79 ~AliHBTRndmGaussBall(){}
80 void Randomize(Double_t& x,Double_t& y,Double_t&z, AliHBTParticle*/*particle*/);
85 ClassDef(AliHBTRndmGaussBall,1)
88 class AliHBTRndmCyllSurf: public AliHBTRndm
91 AliHBTRndmCyllSurf():fR(0.0){}
92 AliHBTRndmCyllSurf(Float_t r, Float_t l):fR(r),fL(l){}
93 ~AliHBTRndmCyllSurf(){}
95 void Randomize(Double_t& x,Double_t& y,Double_t&z, AliHBTParticle* particle);
100 ClassDef(AliHBTRndmCyllSurf,1)