aab9c8d5 |
1 | #ifndef ALITRACKREFERENCE_H |
2 | #define ALITRACKREFERENCE_H |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
4 | * See cxx source for full Copyright notice */ |
5 | |
6 | /* $Id$ */ |
7 | |
8 | #include "TObject.h" |
2cad796f |
9 | #include "TMath.h" |
aab9c8d5 |
10 | |
11 | class AliTrackReference : public TObject { |
2d74ba4f |
12 | |
aab9c8d5 |
13 | public: |
2d74ba4f |
14 | |
aab9c8d5 |
15 | AliTrackReference(); |
2cad796f |
16 | AliTrackReference(Int_t label); |
aab9c8d5 |
17 | virtual ~AliTrackReference() {} |
2d74ba4f |
18 | |
aab9c8d5 |
19 | virtual Int_t GetTrack() const {return fTrack;} |
20 | virtual void SetTrack(Int_t track) {fTrack=track;} |
4930c251 |
21 | virtual void SetLength(Float_t length){fLength=length;} |
2d74ba4f |
22 | virtual void SetTime(Float_t time) {fTime = time;} |
1c0b669a |
23 | virtual Float_t GetLength() const {return fLength;} |
24 | virtual Float_t GetTime() const {return fTime;} |
84856b02 |
25 | virtual Int_t Label() const {return fTrack;} |
26 | virtual void SetLabel(Int_t track) {fTrack=track;} |
27 | virtual Float_t R() const {return TMath::Sqrt(fX*fX+fY*fY);} |
28 | virtual Float_t Pt() const {return TMath::Sqrt(fPx*fPx+fPy*fPy);} |
29 | virtual Float_t Phi() const {return TMath::Pi()+TMath::ATan2(-fPy,-fPx);} |
b915b099 |
30 | virtual Float_t Theta() const {return (fPz==0)?TMath::Pi()/2:TMath::ACos(fPz/P());} |
aab9c8d5 |
31 | virtual Float_t X() const {return fX;} |
32 | virtual Float_t Y() const {return fY;} |
33 | virtual Float_t Z() const {return fZ;} |
34 | virtual Float_t Px() const {return fPx;} |
35 | virtual Float_t Py() const {return fPy;} |
36 | virtual Float_t Pz() const {return fPz;} |
b915b099 |
37 | virtual Float_t P() const {return TMath::Sqrt(fPx*fPx+fPy*fPy+fPz*fPz);} |
aab9c8d5 |
38 | virtual void SetPosition(Float_t x, Float_t y, Float_t z){fX=x; fY=y; fZ=z;} |
39 | virtual void SetMomentum(Float_t px, Float_t py, Float_t pz){fPx=px; fPy=py; fPz=pz;} |
2d74ba4f |
40 | |
41 | |
aab9c8d5 |
42 | protected: |
43 | Int_t fTrack; // Track number |
44 | Float_t fX; // X reference position of the track |
45 | Float_t fY; // Y reference position of the track |
46 | Float_t fZ; // Z reference position of the track |
47 | Float_t fPx; // momentum |
48 | Float_t fPy; // momentum |
49 | Float_t fPz; // momentum |
2d74ba4f |
50 | Float_t fLength; // track lenght from its origin in cm |
51 | Float_t fTime; // time of flight in cm |
aab9c8d5 |
52 | |
14f9f6b4 |
53 | ClassDef(AliTrackReference,3) //Base class for all Alice track references |
aab9c8d5 |
54 | }; |
55 | #endif |