1 % -*- Fundamental -*- (emacs-20 mf mode mucks
2 % feta-pendaal.mf -- piano pedal markings
4 % part of LilyPond's pretty-but-neat music font
6 % source file of the Feta (not the Font-En-Tja) music font
8 % (c) 2000--2005 Jan Nieuwenhuizen <janneke@gnu.org>
14 % Pe = -0.034 pedalh == -0.07 staff-space
15 % ed = -0.27 pedalh == -0.53 staff-space
18 fet_begingroup ("pedal");
23 penh# = 0.7 linethickness#;
24 penw# = 2 penh# + 0.14 staff_space#;
25 define_pixels (penh, penw);
27 pedalh# = 2 staff_space#;
28 pedalbh# = 4/7 pedalh#;
29 define_pixels (pedalh, pedalbh);
32 fet_beginchar ("Pedal asterisk", "*");
33 save bulb, p, radius, thin, inner_r;
36 set_char_box (0, 7/9 pedalh#, 0, pedalh#);
38 z0 = (1/2 w, h - 1/2 w);
40 thin = 0.8 linethickness;
43 0.9 thin + bulb = (radius * pi * 2) / 8;
45 pickup pencircle scaled penh;
51 z1 = z0 + (0, radius);
56 z4l = z0 + inner_r * dir (90 + 360/16);
57 z4r = z0 + inner_r * dir (90 - 360/16);
62 penlabels (0, 1, 2, 3, 4);
68 .. z4l{dir (180 + 360/16)};
75 .. z4l{dir (180 + 360/16)})
76 rotatedaround (z0, 360/8 i));
83 pickup pencircle scaled (7/8 inner_r);
89 %% ugh. rounded corners!
91 fet_beginchar ("Pedal dash", "-");
94 dash_thickness# := penw#;
95 define_whole_vertical_blacker_pixels (dash_thickness);
97 set_char_box (0, 3 penw#, 0, pedalbh#);
99 penpos1 (dash_thickness, 60);
100 penpos2 (dash_thickness, 60);
102 z1l = (0, vround (2/3 h - 1/2 penw));
103 z2r = (w, vround (y1l + 1.2 penw));
107 penstroke z1e{dir 40}
108 ..tension 1.2.. z2e{dir 40};
112 fet_beginchar ("Pedal dot", ".");
113 set_char_box (0, penw#, 0, penw#);
115 pickup pencircle scaled penw;
117 drawdot (hround (1/2 penw), vround (1/2 penw));
121 def draw_pedal_P (expr show_labels) =
125 penpos1 (hround penh, 0);
127 penpos3 (penw, pedalpha);
128 penpos4 (1.2 penh, -pedalpha);
129 penpos5 (penh, -pedalpha);
130 penpos6 (penh, 180 - pedalpha);
131 penpos7 (penh, 180 - pedalpha);
133 penpos9 (4/3 penw, 50);
134 penpos10 (1.4 penw, 50);
135 penpos11 (penh, 90 + pedalpha);
137 z1r = (hround 0.6 w, h);
138 x2l = hround (x1l - penw) + xpart feta_offset;
139 y2 = vround (0.7 h) + ypart feta_offset;
140 x3r = hround (x2l + 2 penw);
142 z4l = z5r + 1/4 (z3r - z5r);
146 z7l = z6r + 1/3 (z8r - z6r);
147 z8r = z5r + 3/5 (z3r - z5r);
150 x10l = w - tand (90 - pedalpha) * y11l;
155 % don't stick out at the top
156 z1' = round (0.9 [z2, z1]) + (xpart feta_offset, 0);
159 % shift start point of pen stroke to avoid overlapping contours
162 z8'r = z8l + whatever * (z3r - z8l);
164 penpos12 (hround penh, 0);
165 penpos13 (penw, -90 - pedbeta);
166 penpos14 (vround penh, 90);
167 penpos15 (penw, -90 + pedbeta);
168 penpos16 (penh, 180 + pedbeta);
170 z12r = (hround (5/9 x1 + 1/2 hround penh), y2);
171 z13l = (1/2 x12r, y15r);
173 z15l = (1/2 [x16, w], y2l + 0.5 penw);
177 % We now do a correction to `center' the stem horizontally. While
178 % this is not the most elegant solution, it is definitely the
182 horz_corr = 1/5 [x12, x16] - x2l;
183 x2 := x2 + horz_corr;
184 x2l := x2l + horz_corr;
185 x2r := x2r + horz_corr;
190 ..tension 2.5.. {dir (225)}z4e;
192 soft_end_penstroke z8'e{right}
193 ..tension 1.5.. z9e{dir (-pedalpha)}
195 ..tension 2.5.. z11e;
198 ..tension 1.5.. z5r{left}
201 ..tension 1.5.. z8r{right}
204 soft_penstroke z12e{down}
205 ..tension 1.1.. z13e{dir (180 - pedbeta)}
206 ..tension 1.1.. z14e{right}
207 ..tension 1.1.. z15e{dir (180 + pedbeta)}
208 ..tension 1.1.. z16e{dir (90 + pedbeta)};
211 penlabels (range 1 thru 16);
218 def draw_pedal_d (expr show_labels) =
222 penpos1 (vround penh, -10 - 90);
223 penpos2 (hround penw, 190);
224 penpos3 (vround (2 penh), 90);
225 penpos4 (hround (3/4 penw), 0);
230 z2 = (w - 1/2 hround penw, 1/2 pedalbh + penh);
231 z4l = (hround (1/3 w), 1/2 pedalbh);
232 z5l = (2/3 w, pedalbh);
233 z3l = (hround x5l, 0);
236 penlabels (1, 2, 3, 4, 5);
239 soft_start_penstroke z1e{dir (-10)}
240 ..tension 1.1.. z2e{dir (-90 + 10)}
241 ..tension 1.1.. z3e{left}
242 ..tension 1.1.. z4e{up}
243 ..tension 1.1.. z5e{dir (-70 + 90)};
248 def draw_pedal_e (expr show_labels) =
252 penpos1 (penh, pedalpha - 90);
253 penpos2 (penh, pedalpha - 90);
254 penpos3 (3/5 penw, pedalpha);
255 penpos4 (1.2 penh, 90 + pedalpha);
256 penpos5 (2/3 penw, 180);
257 penpos6 (penw, 180 + pedalpha);
258 penpos7 (2/3 penw, -90 - 20);
259 penpos8 (penh, pedalpha - 90);
261 z1l = (0, 1/5 pedalh);
262 % this helps to make the path go through z2 at low resolutions
263 z2 = round (z1 + dir pedalpha * penw) + feta_offset;
271 z7l = (x6l + penh, y6l);
280 ..tension 1.5.. z6e{dir - pedalpha}
285 penlabels (range 1 thru 8);
291 fet_beginchar ("Pedal P", "P");
292 set_char_box (0, 5/6 pedalh#, 0, pedalh#);
298 fet_beginchar ("Pedal d", "d");
299 set_char_box (0, 2/3 pedalh#, 0, 7/8 pedalh#);
305 fet_beginchar ("Pedal e", "e");
306 set_char_box (0, 2/5 pedalh#, 0, pedalbh#);
312 fet_beginchar ("Pedal Ped", "Ped");
313 P_width# = 5/6 pedalh#;
314 e_width# = 2/5 pedalh#;
315 d_width# = 2/3 pedalh#;
316 define_pixels (P_width, e_width, d_width);
319 d_height = 7/8 pedalh;
321 % Pe = -0.034 pedalh == -0.07 staff-space
322 % ed = -0.27 pedalh == -0.53 staff-space
323 Pe_kern# = -0.034 pedalh#;
324 ed_kern# = -0.27 pedalh#;
325 define_pixels (Pe_kern, ed_kern);
328 h := vround d_height;
330 currentpicture := currentpicture
331 shifted (hround (e_width + ed_kern), 0);
334 h := vround e_height;
336 currentpicture := currentpicture
337 shifted (hround (P_width + Pe_kern), 0);
343 set_char_box (0, P_width# + Pe_kern# + e_width# + ed_kern# + d_width#,
348 fet_endgroup ("pedal");