-void
-merge_skyline (Array<Skyline_entry> *a1, Array<Skyline_entry> const & a2,
- Direction);
-void insert_extent_into_skyline (Array<Skyline_entry> *line, Box b, Axis line_axis,
- Direction d);
-Array<Skyline_entry>
-extents_to_skyline (Array<Box> const & extents, Axis a, Direction d);
-Array<Skyline_entry> empty_skyline (Direction d);
-void heighten_skyline (Array<Skyline_entry> *buildings, Real ground);
-Real
-skyline_meshing_distance (Array<Skyline_entry> const &buildings,
- Array<Skyline_entry> const &clouds);
+public:
+ Skyline ();
+ Skyline (Skyline const &src);
+ Skyline (Direction sky);
+ Skyline (vector<Box> const &bldgs, Real horizon_padding, Axis a, Direction sky);
+ Skyline (Box const &b, Real horizon_padding, Axis a, Direction sky);
+
+ vector<Offset> to_points (Axis) const;
+ void merge (Skyline const &);
+ void insert (Box const &, Real horizon_padding, Axis);
+ void print () const;
+ void print_points () const;
+ void raise (Real);
+ void shift (Real);
+ Real distance (Skyline const &) const;
+ Real height (Real airplane) const;
+ Real max_height () const;
+ void set_minimum_height (Real height);
+ bool is_empty () const;
+};