void BuildMediaMap();
void SetMediumFromName(const char* volName, int med, int volid);
//G4int GetRegionFromName(const char* volName) const;
+ int GetLastMaterialIndex() const;
G4int GetMedium(int) const;
int CurrentVolID(int ir, int& copyNo);
int CurrentVolOffID(int ir, int off, int& copyNo);