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aee8290b | 1 | #ifndef ALIMAGFCM_H |
2 | #define ALIMAGFCM_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 | ||
0742d588 | 8 | //----------------------------------------------------------------------- |
9 | // Class for Alice magnetic field with constant mesh | |
10 | // Used in the configuration macros (macros/Config.C, etc.) | |
11 | // Author: | |
12 | //----------------------------------------------------------------------- | |
13 | ||
57754f18 | 14 | #include "AliMagFC.h" |
1cdd2303 | 15 | #include <TVector.h> |
aee8290b | 16 | |
57754f18 | 17 | class AliMagFCM : public AliMagFC |
aee8290b | 18 | { |
5d8718b8 | 19 | //Alice Magnetic Field with constant mesh |
aee8290b | 20 | |
21 | public: | |
e2afb3b6 | 22 | AliMagFCM(); |
d0f1ee3b | 23 | AliMagFCM(const char *name, const char *title, Int_t integ, |
24 | Float_t factor, Float_t fmax); | |
aee8290b | 25 | AliMagFCM(const AliMagFCM &mag); |
26 | virtual ~AliMagFCM() {delete fB;} | |
6f3038e9 | 27 | virtual void Field(Float_t *x, Float_t *b) const; |
aee8290b | 28 | virtual void ReadField(); |
c3d65c8c | 29 | virtual void SetSolenoidField(Float_t field = 2.) {fSolenoid = field;} |
05086aa8 | 30 | virtual Float_t SolenoidField() const {return fSolenoid;} |
4cc8933f | 31 | |
6c4904c2 | 32 | void Copy(TObject &magf) const; |
e2afb3b6 | 33 | virtual AliMagFCM & operator=(const AliMagFCM &magf) |
34 | {magf.Copy(*this); return *this;} | |
aee8290b | 35 | |
d0f1ee3b | 36 | Float_t Bx(Int_t ix, Int_t iy, Int_t iz) const { |
aee8290b | 37 | return (*fB)(3*(iz*(fXn*fYn)+iy*fXn+ix)); |
38 | } | |
d0f1ee3b | 39 | Float_t By(Int_t ix, Int_t iy, Int_t iz) const { |
aee8290b | 40 | return (*fB)(3*(iz*(fXn*fYn)+iy*fXn+ix)+1); |
41 | } | |
d0f1ee3b | 42 | Float_t Bz(Int_t ix, Int_t iy, Int_t iz) const { |
aee8290b | 43 | return (*fB)(3*(iz*(fXn*fYn)+iy*fXn+ix)+2); |
44 | } | |
45 | ||
46 | protected: | |
47 | ||
4cc8933f | 48 | Float_t fXbeg; // Start of mesh in x |
49 | Float_t fYbeg; // Start of mesh in y | |
50 | Float_t fZbeg; // Start of mesh in z | |
51 | Float_t fXdel; // Mesh step in x | |
52 | Float_t fYdel; // Mesh step in y | |
53 | Float_t fZdel; // Mesh step in z | |
54 | Float_t fSolenoid; // Solenoid Field Strength | |
55 | Double_t fXdeli; // Inverse of Mesh step in x | |
56 | Double_t fYdeli; // Inverse of Mesh step in y | |
57 | Double_t fZdeli; // Inverse of Mesh step in z | |
58 | Int_t fXn; // Number of mesh points in x | |
59 | Int_t fYn; // Number of mesh points in y | |
60 | Int_t fZn; // Number of mesh points in z | |
61 | TVector *fB; // Field map | |
aee8290b | 62 | |
63 | ClassDef(AliMagFCM,1) //Class for all Alice MagField with Constant Mesh | |
64 | }; | |
65 | ||
66 | #endif |