void BuildGeometry ( ) {} //from AliModule invoked from AliMC::InitGeometry() to build geometry for old event display
virtual void CreateMaterials ( )=0; //from AliModule invoked from AliMC::ConstructGeometry() to define detector materials
virtual void CreateGeometry ( )=0; //from AliModule invoked from AliMC::ConstructGeometry() to build detector for simulation
+
virtual Int_t IsVersion ( )const=0; //from AliModule not used
virtual void Init ( )=0; //from AliModule invoked from AliMC::InitGeometry() after CreateGeometry() to do VolID initialization
virtual void DefineOpticalProperties() {} //from AliModule invoked from AliMC::ConstructOpGeometry() to set Cerenkov properties