+ virtual Molecule do_brew_molecule () const;
+ virtual Array<Offset> get_encompass_offset_arr () const;
+ Bezier get_curve () const;
+ Drul_array<Real> dy_f_drul_;
+ Drul_array<Real> dx_f_drul_;
+
+ virtual Direction get_default_dir () const;
+ virtual void after_line_breaking ();