// Fix magnetic field ... so that we can display
// old data from alien.
-void mf_fix()
+void mf_fix(Double_t f=-1.)
{
- AliMagF* fld = new AliMagF("Map", "Map", -1.0, 1.0, AliMagF::k5kG, AliMagF::kNoBeamField, -1.0);
+ AliMagF* fld = new AliMagF("Map", "Map", f, 1.0, AliMagF::k5kG, AliMagF::kNoBeamField, -1.0);
TGeoGlobalMagField::Instance()->SetField(fld);
TGeoGlobalMagField::Instance()->Lock();
}