+ void SetWriteEnable(Int_t flag = 1) {fWriteEnable = flag;}
+ protected:
+
+ Float_t fXbeg; // Start of mesh in x
+ Float_t fYbeg; // Start of mesh in y
+ Float_t fZbeg; // Start of mesh in z
+ Float_t fXend; // End of mesh in x
+ Float_t fYend; // End of mesh in y
+ Float_t fZend; // End of mesh in z
+ Float_t fXdel; // Mesh step in x
+ Float_t fYdel; // Mesh step in y
+ Float_t fZdel; // Mesh step in z
+ Double_t fXdeli; // Inverse of Mesh step in x
+ Double_t fYdeli; // Inverse of Mesh step in y
+ Double_t fZdeli; // Inverse of Mesh step in z
+ Int_t fXn; // Number of mesh points in x
+ Int_t fYn; // Number of mesh points in y
+ Int_t fZn; // Number of mesh points in z
+ Int_t fWriteEnable; // Enable flag for writing of field data.
+ TVector* fB; // Field map
+