35 #ifndef fieldmanager_h    36 #define fieldmanager_h    84     std::vector<FieldType> giveRegisteredKeys();
    88 #endif // fieldmanager_h std::shared_ptr< Field > FieldPtr
FieldType
Physical type of field. 
std::map< FieldType, std::shared_ptr< Field > > externalFields
Field container. 
the oofem namespace is to define a context or scope in which all oofem names are defined.