// Transform from real to pad coordinates
virtual void GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y);
virtual void GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y, Float_t &z)
// Transform from real to pad coordinates
virtual void GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y);
virtual void GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y, Float_t &z)