2 % feta-bolletjes.mf -- implement noteheads
4 % source file of LilyPond's pretty-but-neat music font
6 % (c) 1997, 1998 Jan Nieuwenhuizen <janneke@gnu.org>
7 % & Han-Wen Nienhuys <hanwen@stack.nl>
11 % most beautiful noteheads are pronounced, not circular,
12 % and not even symmetric.
13 % These examples are inspired by [Wanske], see literature list
16 save black_notehead_width;
17 numeric black_notehead_width;
19 fet_begingroup("noteheads");
21 noteheight#:=interline#+ (1 + overdone_heads) *stafflinethickness#;
22 define_pixels(noteheight);
23 brevis_wid# := 2 interline#;
25 def draw_brevis(expr brevwid) =
26 save beamheight, head_width;
27 save holeheight, stem_width;
28 save serif_size, serif_protrude;
30 head_width# = brevwid;
31 holeheight = 3 stafflinethickness;
32 stem_width = 1.4 stafflinethickness;
35 define_pixels(head_width);
36 set_char_box(0, head_width#, noteheight#/2, noteheight#/2);
38 2 beamheight + holeheight = noteheight;
39 serif_size = (holeheight - stafflinethickness)/2;
40 serif_protrude = 1.5 serif_size;
41 penpos1(stem_width, 0);
42 penpos2(stem_width, 0);
43 penpos3(beamheight, 90);
44 penpos4(beamheight, 90);
45 penpos5(stem_width, 180);
48 z2l = (0, -stafflinethickness/2);
49 z3r = z2r + serif_size *(1,-1);
52 z5l = z3l + (-serif_size, -serif_protrude);
54 penlabels(1,2,3,4, 5);
55 fill z1r -- z1l -- z5r{down} .. z5l{up} .. z3l{right}
56 -- z4l -- z4r -- z3r{left} .. z2r{up} -- cycle;
58 addto currentpicture also currentpicture yscaled -1;
60 addto currentpicture also currentpicture
61 shifted (-x4r,0) xscaled -1 shifted (x4l,0);
67 def draw_ledger(expr wid)=
68 set_char_box(uitsteek * wid, (1+ uitsteek)*wid,
69 ledgerlinethickness#/2,ledgerlinethickness#/2);
70 pickup pencircle scaled ledgerlinethickness;
77 fet_beginchar("Ledger ending", "ledgerending", "ledgerending")
78 set_char_box (5/2 ledgerlinethickness#, 5/2 ledgerlinethickness#,
79 ledgerlinethickness#/2,ledgerlinethickness#/2);
80 pickup pencircle scaled ledgerlinethickness;
87 fet_beginchar("Brevis notehead", "-1", "brevisball")
88 draw_brevis(brevis_wid#);
92 % Some sources (eg Musix/OpusTeX think that the appendage should be on
93 % the right, my only other ref [Willemze], shows an appendage to the left
95 fet_beginchar("Longa notehead", "-2", "longaball");
96 draw_brevis(brevis_wid#);
99 z6 - z7 = (-stem_width/2, -interline);
100 theta = angle(z6-z7)+ 90;
101 penpos7(stem_width, theta);
102 penpos6(1.2 stem_width, theta);
104 fill z7r .. z6r{z6-z7} .. {z7-z6} z6l -- z7l -- cycle;
110 def setup_notehead_vars =
111 save a_b,err_y_a,tilt,superness;
112 save ai_a,ai_bi,err_y_ai,err_x_bi,inner_tilt,inner_superness;
116 % setup addititional vars and calc them
118 save a,beta,ai,bi, ht, wd;
125 define_pixels(a,beta);
126 define_pixels(ai,bi);
127 set_char_box(0, wd#, .5 ht#, .5 ht#);
131 % draw the outer and inner ellipse.
134 black=distorted_ellipse(a,beta,a*err_y_a,0,superness);
135 white=distorted_ellipse(ai,bi,ai*err_y_ai,bi*err_x_bi,inner_superness);
138 x1=-x3=a; x2=x4=0; y1=y3=0; y2=-y4=b;
142 black:=black rotated tilt;
143 black:=black shifted (w/2,0);
144 white:=white rotated inner_tilt;
145 white:=white shifted (w/2,0);
155 fet_beginchar("Whole notehead", "0", "wholeball")
159 err_y_a:=0; % no slant
170 inner_tilt:=125; % jcn
171 % inner_superness:=0.69;
172 inner_superness:=0.68; % jcn
173 b_h:=1; %no rotate-> no height correction
174 a_w:=1; % no rotate-> no width correction
177 whole_notehead_width# := wd#;
185 fet_beginchar("Half notehead", "1",
188 % a_b:=1.49; % after text
189 a_b:=1.50; % after drawing
193 superness:=0.67; % jcn
201 inner_superness:=0.80;
206 half_notehead_width# := wd#;
214 fet_beginchar("Quart notehead", "2", "quartball")
216 % a_b:=1.57; % after text
217 a_b:=1.54; % after drawing
226 inner_superness:=0.707;
231 black_notehead_width# := wd#;
241 def draw_harmonic_notehead(expr harmwid) =
242 save beamheight, head_width, head_char_width;
243 save holeheight, stem_width;
244 save serif_size, serif_protrude;
249 % setup_notehead_vars;
260 head_width# = harmwid;
262 define_pixels(head_width);
265 head_char_width = 1.54 noteheight;
266 head_char_width# := 1.54 ht#;
267 %schuif_op = head_char_width - head_width; %ugh
268 %schuif_op# := head_char_width# - head_width#;
269 % set_char_box(0, head_char_width#, noteheight#/2, noteheight#/2);
270 set_char_box(0, head_width#, head_width#/2, head_width#/2);
271 % 2 beamheight + holeheight = noteheight;
272 thin = stafflinethickness;
273 thick = 2.2 stafflinethickness;
274 % serif_size = (holeheight - stafflinethickness)/2;
275 % serif_protrude = 1.5 serif_size;
285 % 1.5 noteheight = head_width;
288 % z3l = (head_width/2,-head_width/2);
289 z3l = (head_width/2, -noteheight/2);
291 z5l = (head_width, 0);
293 % z7l = (head_width/2, head_width/2);
294 z7l = (head_width/2, noteheight/2);
297 pickup pencircle; %scaled stemthick;
298 penlabels(1,2,3,4,5,6,7,8);
300 fill z1l -- z2r -- z7r -- z7l -- cycle;
301 fill z1l -- z1r -- z4r -- z4l -- cycle;
302 fill z3r -- z3l -- z6l -- z6r -- cycle;
303 fill z5r -- z5l -- z8l -- z8r -- cycle;
308 harmonic_wid# := interline#;
310 fet_beginchar("Harmonic notehead","harmonic","harmonicball")
311 draw_harmonic_notehead(harmonic_wid#)
316 fet_endgroup("noteheads");
318 define_pixels(black_notehead_width);