enum BMap_t {k2kG, k5kG, k5kGUniform};
enum BeamType_t {kBeamTypeAA, kBeamTypepp, kNoBeamField};
enum PolarityConvention_t {kConvLHC,kConvDCS2008,kConvMap2005};
+ enum {kOverrideGRP=BIT(14)}; // don't recreate from GRP if set
//
AliMagF();
AliMagF(const char *name, const char* title, Int_t integ,