2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2006--2015 Joe Neeman <joeneeman@gmail.com>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
23 #include "lily-proto.hh"
26 #include "interval.hh"
27 #include "direction.hh"
28 #include "std-vector.hh"
40 void precompute (Real start, Real start_height, Real end_height, Real end);
41 Building (Real start, Real start_height, Real end_height, Real end);
42 Building (Box const &b, Axis a, Direction d);
45 Real height (Real x) const;
46 Real intersection_x (Building const &other) const;
47 bool above (Building const &other, Real x) const;
48 Real shift_to_intersect (Real x, Real y) const;
51 class Skyline : public Simple_smob<Skyline>
54 static const char type_p_name_[];
56 list<Building> buildings_;
59 void internal_merge_skyline (list<Building> *, list<Building> *,
60 list<Building> *result) const;
61 list<Building> internal_build_skyline (list<Building> *) const;
62 Real internal_distance (Skyline const &, Real horizon_padding, Real *touch_point) const;
63 Real internal_distance (Skyline const &, Real *touch_point) const;
69 Skyline (Direction sky);
70 Skyline (vector<Box> const &bldgs, Axis a, Direction sky);
71 Skyline (vector<Drul_array<Offset> > const &bldgs, Axis a, Direction sky);
72 Skyline (vector<Skyline_pair> const &skypairs, Direction sky);
73 Skyline (Box const &b, Axis a, Direction sky);
75 vector<Offset> to_points (Axis) const;
76 void merge (Skyline const &);
77 void insert (Box const &, Axis);
79 void print_points () const;
82 Real distance (Skyline const &, Real horizon_padding = 0) const;
83 Real touching_point (Skyline const &, Real horizon_padding = 0) const;
84 Real shift_to_avoid (Skyline const &other, Real, Direction d, Real horizon_padding = 0);
85 Real raise_to_avoid (Skyline const &other, Real, Direction d, Real horizon_padding = 0);
86 Drul_array<Real> shifts_to_avoid_intersection (Skyline const &, Real horizon_padding = 0) const;
87 Interval raises_to_avoid_intersection (Skyline const &, Real horizon_padding = 0) const;
88 Real height (Real airplane) const;
89 Real max_height () const;
90 Real max_height_position () const;
93 Direction direction () const;
94 void set_minimum_height (Real height);
96 bool is_empty () const;
97 Skyline padded (Real horizon_padding) const;
99 DECLARE_SCHEME_CALLBACK (get_touching_point, (SCM, SCM, SCM));
100 DECLARE_SCHEME_CALLBACK (get_distance, (SCM, SCM, SCM));
101 DECLARE_SCHEME_CALLBACK (get_max_height, (SCM));
102 DECLARE_SCHEME_CALLBACK (get_max_height_position, (SCM));
103 DECLARE_SCHEME_CALLBACK (get_height, (SCM, SCM));
106 extern bool debug_skylines;
108 #endif /* SKYLINE_HH */