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fe4da5cc | 1 | #ifndef AliMagF_H |
2 | #define AliMagF_H | |
3da30618 | 3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /* $Id$ */ | |
fe4da5cc | 7 | |
8 | #include "TNamed.h" | |
9 | #include "TVector.h" | |
10 | ||
11 | enum Field_t {Undef=1, Const=1, ConMesh=2}; | |
12 | ||
13 | class AliMagF : public TNamed { | |
14 | ||
15 | protected: | |
16 | Int_t fMap; // Field Map identifier | |
17 | Int_t fType; // Mag Field type | |
18 | Int_t fInteg; // Integration method as indicated in Geant | |
19 | Float_t fFactor; // Multiplicative factor | |
20 | Float_t fMax; // Max Field as indicated in Geant | |
21 | ||
22 | public: | |
23 | AliMagF(){} | |
24 | AliMagF(const char *name, const char *title, const Int_t integ, const Int_t map, | |
25 | const Float_t factor, const Float_t fmax); | |
26 | virtual ~AliMagF() {} | |
27 | virtual void Field(Float_t *x, Float_t *b); | |
28 | virtual Int_t Type() {return fType;} | |
29 | virtual Float_t Max() const {return fMax;} | |
30 | virtual Int_t Map() const {return fMap;} | |
31 | virtual Int_t Integ() const {return fInteg;} | |
32 | virtual Float_t Factor() const {return fFactor;} | |
33 | virtual void ReadField() {} | |
34 | ||
35 | ClassDef(AliMagF,1) //Base class for all Alice MagField | |
36 | }; | |
37 | ||
38 | class AliMagFC : public AliMagF | |
39 | { | |
40 | //Alice Constant Magnetic Field | |
41 | private: | |
42 | ||
43 | public: | |
44 | AliMagFC(){} | |
45 | AliMagFC(const char *name, const char *title, const Int_t integ, const Int_t map, | |
46 | const Float_t factor, const Float_t fmax); | |
47 | virtual ~AliMagFC() {} | |
48 | virtual void Field(Float_t *x, Float_t *b); | |
49 | virtual void ReadField() {} | |
50 | ||
51 | ClassDef(AliMagFC,1) //Class for all Alice Constant MagField | |
52 | }; | |
53 | ||
54 | class AliMagFCM : public AliMagF | |
55 | { | |
56 | //Alice Magnetic Field with constan mesh | |
57 | protected: | |
58 | ||
59 | Float_t fXbeg; // Start of mesh in x | |
60 | Float_t fYbeg; // Start of mesh in y | |
61 | Float_t fZbeg; // Start of mesh in z | |
62 | Float_t fXdel; // Mesh step in x | |
63 | Float_t fYdel; // Mesh step in y | |
64 | Float_t fZdel; // Mesh step in z | |
65 | Double_t fXdeli; // Inverse of Mesh step in x | |
66 | Double_t fYdeli; // Inverse of Mesh step in y | |
67 | Double_t fZdeli; // Inverse of Mesh step in z | |
68 | Int_t fXn; // Number of mesh points in x | |
69 | Int_t fYn; // Number of mesh points in y | |
70 | Int_t fZn; // Number of mesh points in z | |
71 | TVector *fB; // Field map | |
72 | public: | |
73 | AliMagFCM(){} | |
74 | AliMagFCM(const char *name, const char *title, const Int_t integ, const Int_t map, | |
75 | const Float_t factor, const Float_t fmax); | |
76 | virtual ~AliMagFCM() {delete fB;} | |
77 | virtual void Field(Float_t *x, Float_t *b); | |
78 | virtual void ReadField(); | |
79 | ||
80 | inline Float_t Bx(const Int_t ix, const Int_t iy, const Int_t iz) { | |
81 | return (*fB)(3*(iz*(fXn*fYn)+iy*fXn+ix)); | |
82 | } | |
83 | inline Float_t By(const Int_t ix, const Int_t iy, const Int_t iz) { | |
84 | return (*fB)(3*(iz*(fXn*fYn)+iy*fXn+ix)+1); | |
85 | } | |
86 | inline Float_t Bz(const Int_t ix, const Int_t iy, const Int_t iz) { | |
87 | return (*fB)(3*(iz*(fXn*fYn)+iy*fXn+ix)+2); | |
88 | } | |
89 | ||
90 | ClassDef(AliMagFCM,1) //Class for all Alice MagField with Constant Mesh | |
91 | }; | |
92 | ||
93 | #endif |