public:
MEDCalculatorDBSliceField(int iter, int order);
MEDCalculatorDBSliceField(MEDCouplingFieldDouble *f);
+ std::size_t getHeapMemorySize() const { return 0; }
bool isFetched() const { return _field!=0; }
void getDtIt(int& it, int& order) const { it=_iteration; order=_order; }
void setField(MEDCouplingFieldDouble *f) const;