AliTPCCalROC();
AliTPCCalROC(UInt_t sector);
AliTPCCalROC(const AliTPCCalROC &c);
+ AliTPCCalROC &operator = (const AliTPCCalROC & param);
virtual ~AliTPCCalROC();
UInt_t GetNrows() const { return fNRows;};
UInt_t GetNchannels() const { return fNChannels;};