- void OK() const { dat->OK(); }
- int cols() const { return dat->cols (); }
- int rows() const { return dat->rows (); }
+ void OK() const { dat_->OK(); }
+ void set_band ();
+ int calc_band_i () const;
+ int cols() const { return dat_->cols (); }
+ int rows() const { return dat_->rows (); }