3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
10 class AliMagFCM : public AliMagF
12 //Alice Magnetic Field with constan mesh
16 AliMagFCM(const char *name, const char *title, const Int_t integ, const Int_t map,
17 const Float_t factor, const Float_t fmax);
18 AliMagFCM(const AliMagFCM &mag);
19 virtual ~AliMagFCM() {delete fB;}
20 virtual void Field(Float_t *x, Float_t *b);
21 virtual void ReadField();
22 virtual void Copy(AliMagFCM &magf) const;
23 virtual AliMagFCM & operator=(const AliMagFCM &magf);
25 Float_t Bx(const Int_t ix, const Int_t iy, const Int_t iz) {
26 return (*fB)(3*(iz*(fXn*fYn)+iy*fXn+ix));
28 Float_t By(const Int_t ix, const Int_t iy, const Int_t iz) {
29 return (*fB)(3*(iz*(fXn*fYn)+iy*fXn+ix)+1);
31 Float_t Bz(const Int_t ix, const Int_t iy, const Int_t iz) {
32 return (*fB)(3*(iz*(fXn*fYn)+iy*fXn+ix)+2);
37 Float_t fXbeg; // Start of mesh in x
38 Float_t fYbeg; // Start of mesh in y
39 Float_t fZbeg; // Start of mesh in z
40 Float_t fXdel; // Mesh step in x
41 Float_t fYdel; // Mesh step in y
42 Float_t fZdel; // Mesh step in z
43 Double_t fXdeli; // Inverse of Mesh step in x
44 Double_t fYdeli; // Inverse of Mesh step in y
45 Double_t fZdeli; // Inverse of Mesh step in z
46 Int_t fXn; // Number of mesh points in x
47 Int_t fYn; // Number of mesh points in y
48 Int_t fZn; // Number of mesh points in z
49 TVector *fB; // Field map
51 ClassDef(AliMagFCM,1) //Class for all Alice MagField with Constant Mesh