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6bc03c45 | 1 | #ifndef AliVParticle_H |
2 | #define AliVParticle_H | |
3 | /* Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
8 | //------------------------------------------------------------------------- | |
9 | // base class for ESD and AOD particles | |
10 | // Author: Markus Oldenburg, CERN | |
11 | //------------------------------------------------------------------------- | |
12 | ||
13 | #include <Rtypes.h> | |
14 | #include <TObject.h> | |
1f516476 | 15 | #include "AliVMisc.h" |
6bc03c45 | 16 | |
6a7d7784 | 17 | #include <float.h> |
18 | ||
19 | const Double_t kAlmost1=1. - Double_t(FLT_EPSILON); | |
20 | const Double_t kAlmost0=Double_t(FLT_MIN); | |
c683ddc2 | 21 | |
02d77919 | 22 | const Double_t kB2C=-0.299792458e-3; |
c683ddc2 | 23 | const Double_t kAlmost0Field=1.e-13; |
24 | ||
6bc03c45 | 25 | class AliVParticle: public TObject { |
26 | ||
27 | public: | |
ddfbc51a | 28 | AliVParticle() { } |
6bc03c45 | 29 | virtual ~AliVParticle() { } |
30 | AliVParticle(const AliVParticle& vPart); | |
31 | AliVParticle& operator=(const AliVParticle& vPart); | |
32 | ||
a4b2769d | 33 | // constructor for reinitialisation of vtable |
1f516476 | 34 | AliVParticle( AliVConstructorReinitialisationFlag ) :TObject(){} |
a4b2769d | 35 | |
6bc03c45 | 36 | // kinematics |
37 | virtual Double_t Px() const = 0; | |
38 | virtual Double_t Py() const = 0; | |
39 | virtual Double_t Pz() const = 0; | |
40 | virtual Double_t Pt() const = 0; | |
6a8e543a | 41 | virtual Double_t P() const = 0; |
c683ddc2 | 42 | virtual Bool_t PxPyPz(Double_t p[3]) const = 0; |
43 | ||
44 | virtual Double_t Xv() const = 0; | |
45 | virtual Double_t Yv() const = 0; | |
46 | virtual Double_t Zv() const = 0; | |
47 | virtual Bool_t XvYvZv(Double_t x[3]) const = 0; | |
6bc03c45 | 48 | |
6a8e543a | 49 | virtual Double_t OneOverPt() const = 0; |
50 | virtual Double_t Phi() const = 0; | |
51 | virtual Double_t Theta() const = 0; | |
6bc03c45 | 52 | |
53 | ||
6a8e543a | 54 | virtual Double_t E() const = 0; |
55 | virtual Double_t M() const = 0; | |
6bc03c45 | 56 | |
6a8e543a | 57 | virtual Double_t Eta() const = 0; |
58 | virtual Double_t Y() const = 0; | |
6bc03c45 | 59 | |
6a8e543a | 60 | virtual Short_t Charge() const = 0; |
61 | virtual Int_t GetLabel() const = 0; | |
6bc03c45 | 62 | // PID |
6a8e543a | 63 | virtual Int_t PdgCode() const = 0; |
6bc03c45 | 64 | virtual const Double_t *PID() const = 0; // return PID object (to be defined, still) |
65 | ||
5ffcfef5 | 66 | |
67 | ||
68 | /** Compare this class with an other instance of this class | |
69 | * used in a TCollection::Sort()/TClonesArray::Sort() | |
70 | * @param obj ptr to other instance | |
71 | * @return Returns 0 when equal, 1 when this is smaller | |
72 | * and -1 when bigger -- sorts descending | |
73 | */ | |
74 | Int_t Compare( const TObject* obj) const; | |
75 | ||
76 | ||
77 | /** Defines this class as being sortable in a TCollection | |
78 | * @return always kTRUE; | |
79 | */ | |
80 | Bool_t IsSortable() const { return kTRUE; } | |
80408edb | 81 | virtual Bool_t IsPrimary() const { return kFALSE; } |
ac987014 | 82 | virtual void SetFlag(UInt_t) {;} |
83 | virtual UInt_t GetFlag() const {return 0;} | |
5ffcfef5 | 84 | |
c683ddc2 | 85 | // coordinate system conversions |
86 | Bool_t Local2GlobalMomentum(Double_t p[3], Double_t alpha) const; | |
87 | Bool_t Local2GlobalPosition(Double_t r[3], Double_t alpha) const; | |
88 | Bool_t Global2LocalMomentum(Double_t p[3], Short_t charge, Double_t &alpha) const; | |
89 | Bool_t Global2LocalPosition(Double_t r[3], Double_t alpha) const; | |
ddfbc51a | 90 | |
11762dd0 | 91 | //Navigation |
92 | virtual Int_t GetMother() const {return -1;} | |
93 | virtual Int_t GetFirstDaughter() const {return -1;} | |
94 | virtual Int_t GetLastDaughter() const {return -1;} | |
95 | virtual void SetGeneratorIndex(Short_t) {;} | |
96 | virtual Short_t GetGeneratorIndex() const {return -1;} | |
ddfbc51a | 97 | ClassDef(AliVParticle, 3) // base class for particles |
6bc03c45 | 98 | }; |
99 | ||
100 | #endif |