1 % Feta (not the Font-En-Tja) music font -- ancient clefs
2 % This file is part of LilyPond, the GNU music typesetter.
4 % Copyright (C) 2001--2015 Juergen Reuter <reuter@ipd.uka.de>
6 % The LilyPond font 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, or under the SIL Open Font License.
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/>.
19 fet_begingroup ("clefs");
24 % Each clef is associated with a particular pitch: the treble clef
25 % with the `g', the alto clef with the `c', the bass clef with the
26 % `f', etc. The shape of each clef character defines a vertical
27 % position that is assumed to represent this pitch. For the treble
28 % clef, it is the vertical position of the center of the spiral
29 % ending that represents the `g' pitch. For the bass clef, it is
30 % the center between the two fat dots that define the vertical
31 % position of the `f' pitch. For the alto clef, it is the vertical
32 % center of the clef that is aligned with the `c' pitch. For each
33 % clef character, this center should be vertically aligned with the
34 % point (0, 0). The horizontal alignment of each clef character
35 % should be such that the vertical line through the point (0, 0)
36 % touches the left-most edge of the clef.
38 % TODO: document exact_center
40 % set_char_box() conventions:
42 % * breapth: Ignored (as far as I know). Should be set to 0.
44 % * width: Should match the clef's width.
46 % * depth: Should match the bottom edge of the clef. Affects vertical
49 % * height: Should match the top edge of the clef. Affects vertical
62 def draw_vaticana_do_clef (expr exact_center, reduction) =
65 reduced_il# = staff_space# * reduction;
67 set_char_box (0 - xpart exact_center,
68 0.5 reduced_il# + xpart exact_center,
69 0.8 reduced_il# - ypart exact_center,
70 0.8 reduced_il# + ypart exact_center);
72 define_pixels (reduced_il);
74 save pat, ellipse, clef, T;
75 path pat, ellipse, clef;
78 T := identity xscaled 0.6 linethickness
79 yscaled 0.6 reduced_il;
80 pickup pencircle transformed T;
81 ellipse := reverse fullcircle transformed T;
85 xoffs# = xpart exact_center;
86 yoffs# = ypart exact_center;
88 define_pixels (xoffs, yoffs);
90 rt z11 = (xoffs + 0.50 reduced_il, yoffs - .45 reduced_il);
91 z12 = (xoffs + 0.25 reduced_il, yoffs - .50 reduced_il);
92 lft z13 = (xoffs + 0.00 reduced_il, yoffs - .28 reduced_il);
93 lft z14 = (xoffs, yoffs);
103 % adjust vertically to fit into bounding box
104 shift = find_tangent_shift (((0, -d + 0.3 reduced_il)
105 -- (w, -d + 0.3 reduced_il)), pat,
106 (0, -d / 2), (0, d / 2));
107 pat := pat shifted shift;
110 .. top (point 1 of pat)
111 .. get_subpath (ellipse,
112 -direction 0 of pat, direction 0 of pat,
114 .. bot (point 1 of pat)
115 .. get_subpath (ellipse,
116 direction 2 of pat, up,
120 -- reverse clef yscaled -1
123 labels (11, 12, 13, 14);
127 fet_beginchar ("Ed. Vat. do clef", "vaticana.do");
128 draw_staff_if_debugging (-1, 3);
129 draw_vaticana_do_clef ((0, 0), 1.0);
133 fet_beginchar ("Ed. Vat. do clef", "vaticana.do_change");
134 draw_vaticana_do_clef ((0, 0), 1.0); % no reduction
138 def draw_vaticana_fa_clef (expr exact_center, reduction) =
139 save reduced_il, xoffs, yoffs;
141 reduced_il# = staff_space# * reduction;
142 xoffs# = xpart exact_center;
143 yoffs# = ypart exact_center;
145 define_pixels (reduced_il, xoffs, yoffs);
147 % left-handed punctum
148 save ellipse, pat, T;
152 T := identity xscaled 0.6 linethickness
153 yscaled 0.5 reduced_il;
154 pickup pencircle transformed T;
155 ellipse := reverse fullcircle transformed T;
157 lft z21 = (xoffs + 0.00 reduced_il, yoffs + 0.00 reduced_il);
158 z22 = (xoffs + 0.25 reduced_il, yoffs + 0.05 reduced_il);
159 rt z23 = (xoffs + 0.50 reduced_il, yoffs - 0.05 reduced_il);
165 fill get_subpath (ellipse,
166 -direction 0 of pat, direction 0 of pat, z21)
168 .. get_subpath (ellipse,
169 direction 2 of pat, -direction 2 of pat, z23)
174 pickup pencircle scaled 0.6 linethickness;
177 yoffs = bot y24 + 1.5 reduced_il;
179 draw_rounded_block (bot lft z24, top rt z23, 0.6 linethickness);
181 labels (21, 22, 23, 24);
183 % right-handed puncta as in do clef
184 draw_vaticana_do_clef (exact_center + (0.55 reduced_il#, 0),
187 set_char_box (0 - xpart exact_center,
188 1.05 reduced_il# + xpart exact_center,
189 1.5 reduced_il# - ypart exact_center,
190 0.8 reduced_il# + ypart exact_center);
194 fet_beginchar ("Ed. Vat. fa clef", "vaticana.fa");
195 draw_staff_if_debugging (-1, 3);
196 draw_vaticana_fa_clef ((0, 0), 1.0);
200 fet_beginchar ("Ed. Vat. fa clef", "vaticana.fa_change");
201 draw_vaticana_fa_clef ((0, 0), 1.0); % no reduction
213 def draw_medicaea_do_clef (expr exact_center, reduction) =
214 save reduced_il, reduced_slt;
216 reduced_il# = staff_space# * reduction;
217 reduced_slt# = linethickness# * reduction;
219 define_pixels (reduced_il);
220 define_pixels (reduced_slt);
222 set_char_box (0 - xpart exact_center,
223 1.0 reduced_il# + xpart exact_center,
224 1.5 reduced_il# - ypart exact_center,
225 1.5 reduced_il# + ypart exact_center);
229 flag_height# = 0.5 reduced_il#;
231 define_pixels (flag_height);
235 xoffs# = xpart exact_center;
236 yoffs# = ypart exact_center;
238 define_pixels (xoffs, yoffs);
245 T := identity xscaled reduced_slt
247 pickup pencircle transformed T;
248 ellipse := reverse fullcircle transformed T;
250 xoffs = lft x1 = rt x2 - reduced_il;
251 y1 = yoffs + 0.5 (reduced_il - flag_height - staff_space);
252 y2 = y1 - reduced_il + flag_height;
255 -- get_subpath (ellipse, z2 - z1, z1 - z2, z2)
259 xoffs = lft x3 = rt x4 - reduced_il;
260 y3 = yoffs + 0.5 (reduced_il - flag_height + staff_space);
261 y4 = y3 - reduced_il + flag_height;
264 -- get_subpath (ellipse, z4 - z3, z3 - z4, z4)
269 pickup pencircle scaled reduced_slt;
271 lft x5 = lft x6 = xoffs;
272 yoffs = top y6 - 1.5 reduced_il = bot y5 + 1.5 reduced_il;
274 draw_rounded_block (bot lft z5, top rt z6, reduced_slt);
276 labels (1, 2, 3, 4, 5, 6);
280 fet_beginchar ("Ed. Med. do clef", "medicaea.do");
281 draw_staff_if_debugging (-1, 3);
282 draw_medicaea_do_clef ((0, 0), 1.0);
286 fet_beginchar ("Ed. Med. do clef", "medicaea.do_change");
287 draw_medicaea_do_clef ((0, 0), .8);
291 def draw_medicaea_fa_clef (expr exact_center, reduction) =
292 % inspired by Regensburger Edition of Medicaea (1885/86), in:
293 % MGG, volume 2, col. 1327 ("Choralreform"), fig. 2.
295 save reduced_il, reduced_slt;
297 reduced_il# = staff_space# * reduction;
298 reduced_slt# = linethickness# * reduction;
300 define_pixels (reduced_il);
301 define_pixels (reduced_slt);
305 xoffs# = xpart exact_center;
306 yoffs# = ypart exact_center;
308 define_pixels (xoffs, yoffs);
311 pickup pencircle scaled reduced_slt;
313 x11 = x12 = xoffs + 0.4 reduced_il;
314 y11 = yoffs = bot y12 + 1.5 reduced_il;
316 draw_rounded_block (bot lft z12, top rt z11, reduced_slt);
318 % left-handed punctum
323 T := identity xscaled reduced_slt
325 pickup pencircle transformed T;
326 ellipse := reverse fullcircle transformed T;
328 lft z13 = (xoffs, yoffs);
329 rt z14 = z11 + (reduced_slt / 2, 0);
331 fill get_subpath (ellipse, left, right, z13)
332 -- get_subpath (ellipse, right, left, z14)
335 labels (11, 12, 13, 14);
337 % right-handed puncta as in do clef
338 draw_medicaea_do_clef (exact_center + (0.7 reduced_il#, 0),
341 set_char_box (0 - xpart exact_center,
342 1.7 reduced_il# + xpart exact_center,
343 1.5 reduced_il# - ypart exact_center,
344 1.5 reduced_il# + ypart exact_center);
348 fet_beginchar ("Ed. Med. fa clef", "medicaea.fa");
349 draw_staff_if_debugging (-1, 3);
350 draw_medicaea_fa_clef ((0, 0), 1.0);
354 fet_beginchar ("Ed. Med. fa clef", "medicaea.fa_change");
355 draw_medicaea_fa_clef ((0, 0), .8);
369 % width: interval from left end to right end
370 % height: interval from bottom of lower beam to top of upper beam
371 % exact_center: the coordinates of the vertical center point of the
374 def draw_brevis (expr exact_center, bwidth, bheight, blinethickness) =
375 save brevis_width, brevis_height, linethickness;
377 brevis_width# = bwidth;
378 brevis_height# = bheight;
379 linethickness# = blinethickness;
381 save beam_width, beam_height;
382 save serif_size, serif_protrude, hole_height;
384 beam_width# = 1.4 linethickness#;
385 hole_height# = 3 linethickness#;
386 2 beam_height# + hole_height# = brevis_height#;
387 serif_size# = (hole_height# - linethickness#) / 2;
388 serif_protrude# = 1.5 serif_size#;
392 xoffs# = xpart exact_center;
393 yoffs# = ypart exact_center;
395 define_pixels (xoffs, yoffs);
396 define_pixels (brevis_width, brevis_height, linethickness);
397 define_pixels (beam_width, beam_height, serif_size, serif_protrude);
399 z1l = (xoffs, yoffs - linethickness);
400 z2r = z1r + serif_size * (1, -1);
401 z3l = z2l + (-serif_size, -serif_protrude);
403 penpos1 (beam_width, 0);
404 penpos2 (beam_height, 90);
405 penpos3 (beam_width, 180);
407 save pat_in, pat_out;
408 path pat_in, pat_out;
414 -- reverse pat_out xscaled -1
415 shifted (2 xoffs + brevis_width, 0);
417 -- reverse pat_out yscaled -1
424 -- reverse pat_in xscaled -1
425 shifted (2 xoffs + brevis_width, 0);
427 -- reverse pat_in yscaled -1
439 % Draw two brevis notes; the second one shifted down by `shift'.
440 % The other parameters are the same as with `draw_brevis'.
442 def draw_double_brevis (expr exact_center, bwidth, bheight,
443 blinethickness, shift) =
444 save brevis_width, brevis_height, linethickness;
446 brevis_width# = bwidth;
447 brevis_height# = bheight;
448 linethickness# = blinethickness;
450 save beam_width, beam_height;
451 save serif_size, serif_protrude, hole_height;
453 beam_width# = 1.4 linethickness#;
454 hole_height# = 3 linethickness#;
455 2 beam_height# + hole_height# = brevis_height#;
456 serif_size# = (hole_height# - linethickness#) / 2;
457 serif_protrude# = 1.5 serif_size#;
461 xoffs# = xpart exact_center;
462 yoffs# = ypart exact_center;
464 define_pixels (xoffs, yoffs);
465 define_pixels (brevis_width, brevis_height, linethickness);
466 define_pixels (beam_width, beam_height, serif_size, serif_protrude);
468 z1l = (xoffs, yoffs - linethickness);
469 z2r = z1r + serif_size * (1, -1);
470 z3l = z2l + (-serif_size, -serif_protrude);
472 penpos1 (beam_width, 0);
473 penpos2 (beam_height, 90);
474 penpos3 (beam_width, 180);
476 z4 = z1 shifted (0, -shift);
477 z5 = z2 shifted (0, -shift);
478 z6 = z3 shifted (0, -shift);
480 penpos4 (beam_width, 0);
481 penpos5 (beam_height, 90);
482 penpos6 (beam_width, 180);
484 save pat_in, pat_out;
485 path pat_in, pat_out;
491 -- reverse pat_out xscaled -1
492 shifted (2 xoffs + brevis_width, 0);
494 -- reverse pat_out yscaled -1
495 shifted (0, shift - 2 yoffs)
503 -- reverse pat_in xscaled -1
504 shifted (2 xoffs + brevis_width, 0);
506 -- reverse pat_in yscaled -1
511 unfill pat_in shifted (0, -shift);
513 penlabels (1, 2, 3, 4, 5, 6);
517 def draw_neomensural_c_clef (expr exact_center, reduction) =
518 save reduced_il, reduced_slt, stem_width;
520 reduced_il# = staff_space# * reduction;
521 reduced_slt# = linethickness# * reduction;
522 stem_width# = 1.4 reduced_slt#;
524 define_pixels (reduced_il, reduced_slt, stem_width);
526 set_char_box (0 - xpart exact_center,
527 2 reduced_il# + 6 reduced_slt# + xpart exact_center,
528 2 reduced_il# - ypart exact_center,
529 2 reduced_il# + ypart exact_center);
531 draw_brevis (exact_center + (3 reduced_slt#, 0),
532 2 reduced_il#, reduced_il#, reduced_slt#);
536 xoffs# = xpart exact_center;
537 yoffs# = ypart exact_center;
539 define_pixels (xoffs, yoffs);
541 save ellipse, pat, T;
545 T := identity xscaled stem_width
546 yscaled blot_diameter;
547 pickup pencircle transformed T;
548 ellipse := fullcircle transformed T;
550 lft x11 = lft x12 = xoffs;
551 top y12 - bot y11 = 4 reduced_il;
552 top y12 + bot y11 = 2 yoffs;
559 pat := get_subpath (ellipse, down, up, z13)
564 fill get_subpath (ellipse, down, up, z11)
565 -- get_subpath (ellipse, up, down, z12)
567 fill get_subpath (ellipse, down, up, z14)
568 -- get_subpath (ellipse, up, down, z15)
575 shifted (0, 2 yoffs);
577 shifted (w, 2 yoffs);
579 labels (11, 12, 13, 14, 15);
583 fet_beginchar ("neo-mensural c clef", "neomensural.c");
584 draw_staff_if_debugging (-1, 3);
585 draw_neomensural_c_clef ((0, 0), 1.0);
589 fet_beginchar ("neo-mensural c clef", "neomensural.c_change");
590 draw_neomensural_c_clef ((0, 0), .8);
594 def draw_petrucci_c_clef (expr exact_center, flare_align, reduction) =
595 % inspired by Josquin Desprez, "Stabat Mater", Libro tertio,
596 % 1519, printed by Petrucci, in: MGG, volume 7, Table 11.
597 % Also by Petrucci's Canti C, Venedig 1503. In: MGG, volume
600 save reduced_il, reduced_slt;
602 reduced_il# = staff_space# * reduction;
603 reduced_slt# = linethickness# * reduction;
605 define_pixels (reduced_il);
607 draw_double_brevis (exact_center + (0, 0.5 staff_space#),
608 reduced_il#, reduced_il#, reduced_slt#,
611 save half_reduced_il, left_depth, left_height;
613 half_reduced_il# = staff_space# * sqrt (reduction);
614 left_height# = half_reduced_il# * min (3.2, 3.2 + 0.2 + flare_align);
615 left_depth# = half_reduced_il# * min (3.2, 3.2 + 0.2 - flare_align);
617 define_pixels (half_reduced_il);
618 define_pixels (left_depth, left_height);
620 set_char_box (0 - xpart exact_center,
621 reduced_il# + xpart exact_center,
622 left_depth# - ypart exact_center,
623 left_height# + ypart exact_center);
627 xoffs# = xpart exact_center;
628 yoffs# = ypart exact_center;
630 define_pixels (xoffs, yoffs);
636 T := identity xscaled 1.4 linethickness
637 yscaled blot_diameter;
638 pickup pencircle transformed T;
639 ellipse := fullcircle transformed T;
641 lft x11 = lft x13 = xoffs;
642 top y11 = yoffs + left_height;
643 bot y13 = yoffs - left_depth;
644 rt x15 = rt x17 = xoffs + brevis_width;
645 y15 = min (y11 - 0.2 half_reduced_il, yoffs + 2.2 half_reduced_il);
646 y17 = max (y13 + 0.2 half_reduced_il, yoffs - 2.2 half_reduced_il);
648 z12 = z14 yscaled -1;
650 z16 = z18 yscaled -1;
651 rt z18 = lft z14 shifted (brevis_width, 0);
653 penpos12 (1.4 linethickness, 0);
654 penpos14 (1.4 linethickness, 0);
655 penpos16 (1.4 linethickness, 0);
656 penpos18 (1.4 linethickness, 0);
658 if top y11 > -y6 + 0.7 linethickness:
659 fill get_subpath (ellipse, up, down, z11)
664 if bot y13 < y6 - 0.7 linethickness:
665 fill get_subpath (ellipse, down, up, z13)
670 if top y15 > -y6 + 0.7 linethickness:
671 fill get_subpath (ellipse, up, down, z15)
676 if bot y17 < y6 - 0.7 linethickness:
677 fill get_subpath (ellipse, down, up, z17)
683 labels (11, 13, 15, 17);
684 penlabels (12, 14, 16, 18);
688 fet_beginchar ("petrucci c1 clef", "petrucci.c1");
689 draw_staff_if_debugging (-1, 3);
690 draw_petrucci_c_clef ((0, 0), +2, 1.0);
694 fet_beginchar ("petrucci c1 clef", "petrucci.c1_change");
695 draw_petrucci_c_clef ((0, 0), +2, .8);
699 fet_beginchar ("petrucci c2 clef", "petrucci.c2");
700 draw_staff_if_debugging (-1, 3);
701 draw_petrucci_c_clef ((0, 0), +1, 1.0);
705 fet_beginchar ("petrucci c2 clef", "petrucci.c2_change");
706 draw_petrucci_c_clef ((0, 0), +1, .8);
710 fet_beginchar ("petrucci c3 clef", "petrucci.c3");
711 draw_staff_if_debugging (-1, 3);
712 draw_petrucci_c_clef ((0, 0), 0, 1.0);
716 fet_beginchar ("petrucci c3 clef", "petrucci.c3_change");
717 draw_petrucci_c_clef ((0, 0), 0, .8);
721 fet_beginchar ("petrucci c4 clef", "petrucci.c4");
722 draw_staff_if_debugging (-1, 3);
723 draw_petrucci_c_clef ((0, 0), -1, 1.0);
727 fet_beginchar ("petrucci c4 clef", "petrucci.c4_change");
728 draw_petrucci_c_clef ((0, 0), -1, .8);
732 fet_beginchar ("petrucci c5 clef", "petrucci.c5");
733 draw_staff_if_debugging (-1, 3);
734 draw_petrucci_c_clef ((0, 0), -2, 1.0);
738 fet_beginchar ("petrucci c5 clef", "petrucci.c5_change");
739 draw_petrucci_c_clef ((0, 0), -2, .8);
743 def draw_mensural_c_clef (expr exact_center, reduction, fill_char) =
744 save reduced_il, vert_thick, hor_thick, blot_rad;
746 reduced_il# = staff_space# * reduction;
747 vert_thick# = linethickness# * 1.4;
748 hor_thick# = staff_space# * reduction * 0.25;
750 blot_rad = blot_diameter / 2;
752 define_pixels (reduced_il, vert_thick, hor_thick);
754 pickup pencircle scaled blot_diameter;
756 penpos1 (vert_thick, 0);
757 penpos2 (vert_thick, 0);
758 penpos3 (hor_thick, 90);
759 penpos4 (hor_thick, 90);
760 penpos5 (hor_thick, 90);
761 penpos6 (hor_thick, 90);
762 penpos7 (vert_thick, 0);
763 penpos8 (hor_thick, 90);
767 top y2 = 2.2 reduced_il;
768 z3 = (vert_thick, 0.75 reduced_il);
769 z4 = z3 + (reduced_il - vert_thick, 0);
770 z5 = z4 + (vert_thick, -0.5 reduced_il);
771 z6 = z5 - (reduced_il, 0);
772 z7 = z4 + (0.5 vert_thick, 0.5 reduced_il);
773 z8 = z5 - (vert_thick, 0);
780 .. z2 + (0, blot_rad)
787 .. z7 + (0, blot_rad)
795 -- reverse pat yscaled -1
800 pat_mid = bot z3l{up}
811 pat_mid := pat_mid shifted (0, -reduced_il);
815 set_char_box (0, reduced_il# + vert_thick#,
816 2.2 reduced_il#, 2.2 reduced_il#);
818 penlabels (1, 2, 3, 4, 5, 6, 7, 8);
822 fet_beginchar ("mensural c clef", "mensural.c");
823 draw_staff_if_debugging (-1, 3);
824 draw_mensural_c_clef ((0, 0), 1.0, true);
828 fet_beginchar ("mensural c clef", "mensural.c_change");
829 draw_mensural_c_clef ((0, 0), .8, true);
833 fet_beginchar ("black mensural c clef", "blackmensural.c");
834 draw_staff_if_debugging (-1, 3);
835 draw_mensural_c_clef ((0, 0), 1.0, false);
839 fet_beginchar ("black mensural c clef", "blackmensural.c_change");
840 draw_mensural_c_clef ((0, 0), 0.8, false);
844 def draw_diamond (expr exact_center, reduction) =
845 save stem_width, reduced_nht, holeheight, beamheight;
846 save rh_height, rh_width;
848 stem_width# = 1.4 reduced_slt#;
849 reduced_nht# = noteheight# * reduction;
850 holeheight# = 3 reduced_slt#;
851 beamheight# = 0.4 (reduced_nht# - holeheight#);
853 rh_height# = 1.2 staff_space# * reduction;
854 rh_width# / rh_height# = tand (30);
856 define_pixels (beamheight, stem_width);
857 define_pixels (rh_height, rh_width);
861 xoffs# = xpart exact_center;
862 yoffs# = ypart exact_center;
864 define_pixels (xoffs, yoffs);
870 T := identity xscaled beamheight
873 pickup pencircle transformed T;
874 ellipse := reverse fullcircle transformed T;
876 x21 := xoffs - rh_width / 2;
879 y22 := yoffs + rh_height / 2;
880 x23 := xoffs + rh_width / 2;
883 y24 := yoffs - rh_height / 2;
885 fill get_subpath (ellipse, z21 - z24, z22 - z21, z21)
886 -- get_subpath (ellipse, z22 - z21, z23 - z22, z22)
887 -- get_subpath (ellipse, z23 - z22, z24 - z23, z23)
888 -- get_subpath (ellipse, z24 - z23, z21 - z24, z24)
894 l2122 := (directionpoint (z21 - z22) of ellipse) shifted z21
895 -- (directionpoint (z21 - z22) of ellipse) shifted z22;
896 l2223 := (directionpoint (z22 - z23) of ellipse) shifted z22
897 -- (directionpoint (z22 - z23) of ellipse) shifted z23;
898 l2324 := (directionpoint (z23 - z24) of ellipse) shifted z23
899 -- (directionpoint (z23 - z24) of ellipse) shifted z24;
900 l2421 := (directionpoint (z24 - z21) of ellipse) shifted z24
901 -- (directionpoint (z24 - z21) of ellipse) shifted z21;
903 unfill l2122 intersectionpoint l2223
904 -- l2223 intersectionpoint l2324
905 -- l2324 intersectionpoint l2421
906 -- l2421 intersectionpoint l2122
909 labels (21, 22, 23, 24);
913 def draw_petrucci_f_clef (expr exact_center, reduction) =
914 % inspired by L'homme arme super voces musicales in Misse
915 % Josquin, 1502, Petrucci, in: MGG, volume 7, col. 200; also
916 % inspired by Gaspar van Weerbeke, "Virgo Maria" (1502), in:
917 % MGG, volume 9, col. 653 ("Motette"), fig. 3.; also by Andr'e
918 % Campra, "Entr'ee des s'er'enades" (1710), in: MGG, volume 2,
919 % col. 1649 ("Contredanse"), fig. 2.
921 save interline, reduced_il, reduced_slt;
923 interline# = staff_space#;
924 reduced_il# = staff_space# * reduction;
925 reduced_slt# = linethickness# * reduction;
927 draw_brevis (exact_center, reduced_il#, reduced_il#, reduced_slt#);
928 draw_diamond (exact_center +
929 (1.6 interline# * reduction, interline# / 2),
931 draw_diamond (exact_center +
932 (1.6 interline# * reduction, -interline# / 2),
935 define_pixels (interline, reduced_il, reduced_slt);
939 stem_width# = 1.4 reduced_slt#;
941 define_pixels (stem_width);
945 xoffs# = xpart exact_center;
946 yoffs# = ypart exact_center;
948 define_pixels (xoffs, yoffs);
955 T := identity xscaled stem_width
956 yscaled blot_diameter;
957 pickup pencircle transformed T;
958 ellipse := fullcircle transformed T;
960 rt x8 = xoffs + reduced_il;
962 rt z9 = (xoffs + reduced_il, yoffs - 4 reduced_il);
964 penpos8 (stem_width, 0);
966 fill get_subpath (ellipse, down, up, z9)
971 % upper diamond's stem
972 z10 = (xoffs + 1.6 interline * reduction + stem_width / 2,
973 yoffs + interline * reduction);
974 top z11 = z10 + (0, 1.5 interline * reduction);
976 penpos10 (stem_width, 0);
978 fill get_subpath (ellipse, up, down, z11)
983 % lower diamond's stem
984 z12 = (xoffs + 1.6 interline * reduction - stem_width / 2,
985 yoffs - interline * reduction);
986 bot z13 = z12 + (0, -3.5 interline * reduction);
988 penpos12 (stem_width, 0);
990 fill get_subpath (ellipse, down, up, z13)
995 save reduced_il, rh_height, rh_width;
997 reduced_il# = staff_space# * reduction;
998 rh_height# = 1.2 reduced_il#;
999 rh_width# / rh_height# = tand (30);
1001 set_char_box (0 - xpart exact_center,
1002 1.6 interline# * reduction + 0.5 rh_width# +
1004 4.5 interline# * reduction - ypart exact_center,
1005 2.5 interline# * reduction + ypart exact_center);
1008 penlabels (8, 10, 12);
1012 fet_beginchar ("petrucci f clef", "petrucci.f");
1013 draw_staff_if_debugging (-1, 3);
1014 draw_petrucci_f_clef ((0, 0), 1.0);
1018 fet_beginchar ("petrucci f clef", "petrucci.f_change");
1019 draw_petrucci_f_clef ((0, 0), .8);
1023 def draw_mensural_f_clef (expr exact_center, reduction) =
1024 % inspired by Philippe le Duc, "Dite Signori" (1590), in: MGG,
1025 % volume 3, col. 848 ("Duc"); also by John Dowland, "The First
1026 % Booke of Songes" (1597), in: MGG, volume 3, col. 721
1027 % ("Dowland"), fig. 3.
1029 save width, reduced_slt, stem_width, dot_diameter;
1031 width# = 1.2 staff_space# * reduction;
1032 reduced_slt# = linethickness# * reduction;
1033 stem_width# = 1.4 reduced_slt#;
1034 dot_diameter# = 0.1 reduction * staff_space#;
1036 define_pixels (width, stem_width, staff_space, dot_diameter);
1040 xoffs# = xpart exact_center;
1041 yoffs# = ypart exact_center;
1043 define_pixels (xoffs, yoffs);
1049 T := identity xscaled 0.2 width
1052 pickup pencircle transformed T;
1053 ellipse := fullcircle transformed T;
1061 pat := halfcircle scaled width
1063 shifted (z10 - (xoffs, yoffs));
1065 z5 = point 0 of pat;
1066 z6 = point 1 of pat;
1067 z7 = point 2 of pat;
1068 z8 = point 3 of pat;
1069 z9 = point 4 of pat;
1074 dirs5 := direction 0 of pat;
1075 dirs6 := direction 1 of pat;
1076 dirs7 := direction 2 of pat;
1077 dirs8 := direction 3 of pat;
1078 dirs9 := direction 4 of pat;
1080 % we approximate `draw pat'
1081 fill get_subpath (ellipse, -dirs5, dirs5, z5)
1082 .. get_subpoint (ellipse, dirs6, z6)
1083 .. get_subpoint (ellipse, dirs7, z7)
1084 .. get_subpoint (ellipse, dirs8, z8)
1085 .. get_subpath (ellipse, dirs9, -dirs9, z9)
1086 .. get_subpoint (ellipse, -dirs8, z8)
1087 .. get_subpoint (ellipse, -dirs7, z7)
1088 .. get_subpoint (ellipse, -dirs6, z6)
1092 rt x2 = xoffs + width;
1093 top y1 = yoffs + 0.5 width;
1094 z2 - z1 = (dot_diameter, -dot_diameter);
1096 fill get_subpath (ellipse, z1 - z2, z2 - z1, z1)
1097 -- get_subpath (ellipse, z2 - z1, z1 - z2, z2)
1102 top y1 - bot y4 = width;
1103 z4 - z3 = (dot_diameter, -dot_diameter);
1105 fill get_subpath (ellipse, z3 - z4, z4 - z3, z3)
1106 -- get_subpath (ellipse, z4 - z3, z3 - z4, z4)
1109 set_char_box (0 - xpart exact_center,
1110 width# + xpart exact_center,
1111 0.5 width# - ypart exact_center,
1112 0.5 width# + ypart exact_center);
1114 labels (1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
1118 fet_beginchar ("mensural f clef", "mensural.f");
1119 draw_staff_if_debugging (-1, 3);
1120 draw_mensural_f_clef ((0, 0), 1.0);
1124 fet_beginchar ("mensural f clef", "mensural.f_change");
1125 draw_mensural_f_clef ((0, 0), .8);
1129 def draw_petrucci_g_clef (expr exact_center, reduction) =
1130 % inspired by Josquin Desprez, "Stabat Mater", Libro tertio,
1131 % 1519, printed by Petrucci, in: MGG, volume 7, Table 11.
1133 save reduced_il, reduced_slt;
1135 reduced_il# = staff_space# * reduction;
1136 reduced_slt# = linethickness# * reduction;
1137 define_pixels (reduced_il, reduced_slt);
1139 set_char_box (0 - xpart exact_center,
1140 1.25 reduced_il# + xpart exact_center,
1141 0.65 reduced_il# - ypart exact_center,
1142 3.80 reduced_il# + ypart exact_center);
1146 xoffs# = xpart exact_center;
1147 yoffs# = ypart exact_center;
1149 define_pixels (xoffs, yoffs);
1151 save ellipse, paths, sub_path, outlines, sub_outlines, T;
1152 path ellipse, paths[], sub_path, outlines[], sub_outlines[];
1155 T := identity xscaled 0.5 reduced_slt
1156 yscaled 0.22 reduced_il
1158 pickup pencircle transformed T;
1159 ellipse := fullcircle transformed T;
1161 lft z1 = (xoffs + 0.80 reduced_il, yoffs + 0.00 reduced_il);
1162 lft z2 = (xoffs + 1.00 reduced_il, yoffs + 1.20 reduced_il);
1163 lft z3 = (xoffs + 0.70 reduced_il, yoffs + 2.00 reduced_il);
1164 lft z4 = (xoffs + 0.30 reduced_il, yoffs + 3.00 reduced_il);
1165 lft z5 = (xoffs + 0.80 reduced_il, yoffs + 3.70 reduced_il);
1166 lft z6 = (xoffs + 1.00 reduced_il, yoffs + 3.00 reduced_il);
1167 lft z7 = (xoffs + 0.60 reduced_il, yoffs + 2.00 reduced_il);
1168 lft z8 = (xoffs + 0.30 reduced_il, yoffs + 1.70 reduced_il);
1169 lft z9 = (xoffs + 0.00 reduced_il, yoffs + 0.75 reduced_il);
1170 lft z10 = (xoffs + 0.20 reduced_il, yoffs + 0.60 reduced_il);
1188 % we approximate `draw paths1'
1189 for i = 1 step s until (length paths1 + 1):
1190 dirs[i] := direction (i - 1) of paths1;
1193 outlines1 := get_subpath (ellipse, -dirs1, dirs1, z1)
1194 for i = (1 + s) step s until (length paths1 + 1 - s):
1195 .. get_subpoint (ellipse, dirs[i],
1196 point (i - 1) of paths1)
1198 .. get_subpath (ellipse, dirs10, -dirs10, z10)
1199 for i = (length paths1 + 1 - s) step -s until (1 + s):
1200 .. get_subpoint (ellipse, -dirs[i],
1201 point (i - 1) of paths1)
1207 len := length outlines1;
1209 sub_outlines1 := subpath (0,
1210 floor (1/4 len)) of outlines1;
1211 sub_outlines2 := subpath (floor (1/4 len),
1212 floor (2/4 len)) of outlines1;
1213 sub_outlines3 := subpath (floor (2/4 len),
1214 floor (3/4 len)) of outlines1;
1215 sub_outlines4 := subpath (floor (3/4 len),
1221 (times12, times21) = sub_outlines1 intersectiontimes sub_outlines2;
1222 (times13, times31) = sub_outlines1 intersectiontimes sub_outlines3;
1223 (times42, times24) = sub_outlines4 intersectiontimes sub_outlines2;
1224 (times43, times34) = sub_outlines4 intersectiontimes sub_outlines3;
1226 T := identity xscaled 0.75 reduced_slt
1227 yscaled 0.33 reduced_il
1229 pickup pencircle transformed T;
1230 ellipse := fullcircle transformed T;
1232 lft z21 = (xoffs + 1.05 reduced_il, yoffs + 0.45 reduced_il);
1233 lft z22 = (xoffs + 0.55 reduced_il, yoffs + 0.45 reduced_il);
1234 lft z23 = (xoffs + 0.55 reduced_il, yoffs - 0.45 reduced_il);
1235 lft z24 = (xoffs + 1.05 reduced_il, yoffs - 0.45 reduced_il);
1236 lft z25 = (xoffs + 1.10 reduced_il, yoffs + 0.00 reduced_il);
1237 lft z26 = (xoffs + 0.80 reduced_il, yoffs + 0.00 reduced_il);
1246 sub_path := subpath (0, 1) of paths2;
1248 times1 = xpart (sub_outlines1 intersectiontimes sub_path);
1249 times4 = xpart (sub_outlines4 intersectiontimes sub_path);
1251 % we have to find the envelope intersections (if any)
1255 t1 = find_envelope_cusp (reverse ellipse,
1256 subpath (1, 2) of paths2,
1262 t2 = find_envelope_cusp (ellipse,
1263 subpath (3, 4) of reverse paths2,
1265 t2 := length paths2 - t2;
1268 t3 = find_envelope_cusp (reverse ellipse,
1269 subpath (2, 4 - epsilon) of paths2,
1275 t4 = find_envelope_cusp (ellipse,
1276 subpath (1 + epsilon, 3)
1279 t4 := length paths2 - t4;
1282 fill subpath (times1 + s / 4, times13) of sub_outlines1
1283 -- subpath (times31, infinity) of sub_outlines3
1284 & subpath (0, times42) of sub_outlines4
1285 -- subpath (times24, infinity) of sub_outlines2
1286 & subpath (0, times34) of sub_outlines3
1287 -- subpath (times43, times4 - s / 4) of sub_outlines4
1289 unfill subpath (times12, infinity) of sub_outlines1
1290 & subpath (0, times21) of sub_outlines2
1292 fill subpath (times4 + s / 4, infinity) of sub_outlines4
1293 & subpath (0, times1 - s / 4) of sub_outlines1
1297 % we approximate `draw paths2'
1298 for i = 1 step s until (length paths2 - s):
1299 dirs[i + 20] := direction (i - 1) of paths2;
1302 sub_outlines21 := get_subpath (ellipse, -dirs21, dirs21, z21)
1303 for i = (1 + s) step s until (length paths2 - s):
1304 .. get_subpoint (ellipse, dirs[i + 20],
1305 point (i - 1) of paths2)
1307 .. get_subpath (ellipse, up, z26 - z25, z25);
1308 sub_outlines22 := get_subpath (ellipse, z26 - z25, z25 - z26, z26)
1309 -- get_subpoint (ellipse, z25 - z26, z25);
1310 sub_outlines23 := get_subpoint (ellipse, down, z25)
1311 for i = (length paths2 - s) step -s until (t4 + 1):
1312 .. get_subpoint (ellipse, -dirs[i + 20],
1313 point (i - 1) of paths2)
1315 .. get_subpoint (ellipse, -direction t4 of paths2,
1316 point t4 of paths2);
1317 sub_outlines24 := get_subpoint (ellipse, -direction t3 of paths2,
1319 for i = (floor (t3 / s) * s + 1) step -s until (t2 + 1):
1320 .. get_subpoint (ellipse, -dirs[i + 20],
1321 point (i - 1) of paths2)
1323 .. get_subpoint (ellipse, -direction t2 of paths2,
1324 point t2 of paths2);
1325 sub_outlines25 := get_subpoint (ellipse, -direction t1 of paths2,
1327 for i = (floor (t1 / s) * s + 1) step -s until (1 + s):
1328 .. get_subpoint (ellipse, -dirs[i + 20],
1329 point (i - 1) of paths2)
1332 (times2223, times2322) = sub_outlines22 intersectiontimes sub_outlines23;
1333 (times2324, times2423) = sub_outlines23 intersectiontimes sub_outlines24;
1334 (times2425, times2524) = sub_outlines24 intersectiontimes sub_outlines25;
1337 -- subpath (0, times2223) of sub_outlines22
1338 -- subpath (times2322, times2324) of sub_outlines23
1339 -- subpath (times2423, times2425) of sub_outlines24
1340 -- subpath (times2524, infinity) of sub_outlines25
1343 labels (1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
1344 labels (21, 22, 23, 24, 25, 26);
1348 fet_beginchar ("petrucci g clef", "petrucci.g");
1349 draw_staff_if_debugging (-1, 3);
1350 draw_petrucci_g_clef ((0, 0), 1.0);
1354 fet_beginchar ("petrucci g clef", "petrucci.g_change");
1355 draw_petrucci_g_clef ((0, 0), .8);
1359 def draw_mensural_g_clef (expr exact_center, reduction) =
1360 % TODO: Rewrite me. The former mensural g clef looked ugly, and the
1361 % code was removed when it broke for small font sizes after some
1362 % global changes in the font. Currently, the character is mapped to
1363 % a copy of the petrucci g clef (which, after all, *is* a mensural g
1364 % clef, but not the one that we have in mind here). -- jr
1366 % Possible sources of inspiration for this clef include: Francisco
1367 % Guerrero, "Lib. 1. Missarum" (1566), in: MGG, volume 3, col. 858
1368 % ("Ducis"); Stefano Fabri, "Quam speciosa veteranis" (1611), in:
1369 % MGG, volume 3, col. 1698 ("Fabri"); Philippus Dulichius,
1370 % "Fasciculus novus ..." (1598), in: MGG, volume 3, col. 919
1371 % ("Dulichius"), fig. 1; Noe Faignient, "Ic sal de Heer myn God
1372 % gebenedye" (1568), in: MGG, volume 3, col. 1735 ("Faignient").
1377 % FIXME: This clef is preliminarily mapped to the petrucci g clef
1378 % until the code for the mensural g clef will be rewritten.
1380 fet_beginchar ("mensural g clef", "mensural.g");
1381 draw_staff_if_debugging (-1, 3);
1382 draw_petrucci_g_clef ((0, 0), 1.0);
1386 fet_beginchar ("mensural g clef", "mensural.g_change");
1387 draw_petrucci_g_clef ((0, 0), .8);
1400 def draw_hufnagel_do_clef (expr exact_center, reduction) =
1401 % inspired by Graduale of Friedrich Zollner (1442), in: MGG,
1402 % volume 9, col. 1413 ("Neustift"), fig. 1.
1406 reduced_il# = staff_space# * reduction;
1408 define_pixels (reduced_il);
1410 set_char_box (0 - xpart exact_center,
1411 1.10 reduced_il# + xpart exact_center,
1412 0.70 reduced_il# - ypart exact_center,
1413 0.75 reduced_il# + ypart exact_center);
1417 xoffs# = xpart exact_center;
1418 yoffs# = ypart exact_center;
1420 define_pixels (xoffs, yoffs);
1422 save ellipse, pat, T;
1426 T := identity xscaled 0.6 reduced_il
1427 yscaled 0.1 reduced_il
1429 pickup pencircle transformed T;
1430 ellipse := fullcircle transformed T;
1432 z1 = (xoffs + 0.90 reduced_il, yoffs + .45 reduced_il);
1433 z2 = (xoffs + 0.80 reduced_il, yoffs + .45 reduced_il);
1434 z3 = (xoffs + 0.50 reduced_il, yoffs + .60 reduced_il);
1435 z4 = (xoffs + 0.20 reduced_il, yoffs + .45 reduced_il);
1436 z5 = (xoffs + 0.20 reduced_il, yoffs - .45 reduced_il);
1437 z6 = (xoffs + 0.40 reduced_il, yoffs - .55 reduced_il);
1446 fill get_subpath (ellipse,
1447 -direction 0 of pat, direction 0 of pat, z1)
1448 .. get_subpoint (ellipse, direction 1 of pat, z2)
1449 .. get_subpath (ellipse,
1450 direction (2 - epsilon) of pat, z4 - z3, z3)
1451 -- get_subpath (ellipse,
1452 z4 - z3, z5 - z4, z4)
1453 -- get_subpath (ellipse,
1454 z5 - z4, z6 - z5, z5)
1455 -- get_subpath (ellipse,
1456 z6 - z5, z5 - z6, z6)
1457 -- get_subpoint (ellipse, z5 - z6, z5)
1458 -- get_subpoint (ellipse, z4 - z5, z5)
1459 -- get_subpoint (ellipse, z4 - z5, z4)
1460 -- get_subpoint (ellipse, -direction (2 - epsilon) of pat, z3)
1461 .. get_subpath (ellipse,
1462 -direction 1 of pat, -direction 1 of pat, z2)
1465 labels (1, 2, 3, 4, 5, 6);
1469 fet_beginchar ("Hufnagel do clef", "hufnagel.do");
1470 draw_staff_if_debugging (-1, 3);
1471 draw_hufnagel_do_clef ((0, 0), 1.0);
1475 fet_beginchar ("Hufnagel do clef", "hufnagel.do_change");
1476 draw_hufnagel_do_clef ((0, 0), .8);
1480 def draw_hufnagel_fa_clef (expr exact_center, reduction) =
1481 % inspired by Bamberger Manuscript (15th century), in:
1482 % MGG, volume 2, table 59.
1486 reduced_il# = staff_space# * reduction;
1488 define_pixels (reduced_il);
1490 set_char_box (0 - xpart exact_center,
1491 1.20 reduced_il# + xpart exact_center,
1492 1.15 reduced_il# - ypart exact_center,
1493 1.00 reduced_il# + ypart exact_center);
1497 xoffs# = xpart exact_center;
1498 yoffs# = ypart exact_center;
1500 define_pixels (xoffs, yoffs);
1502 save ellipse, pat, T;
1506 T := identity xscaled 0.6 reduced_il
1507 yscaled 0.1 reduced_il
1509 pickup pencircle transformed T;
1510 ellipse := fullcircle transformed T;
1512 z11 = (xoffs + 0.90 reduced_il, yoffs + 0.70 reduced_il);
1513 z12 = (xoffs + 0.80 reduced_il, yoffs + 0.70 reduced_il);
1514 z13 = (xoffs + 0.50 reduced_il, yoffs + 0.85 reduced_il);
1515 z14 = (xoffs + 0.20 reduced_il, yoffs + 0.70 reduced_il);
1516 z15 = (xoffs + 0.20 reduced_il, yoffs - 1.10 reduced_il);
1524 fill get_subpath (ellipse,
1525 -direction 0 of pat, direction 0 of pat, z11)
1526 .. get_subpoint (ellipse, direction 1 of pat, z12)
1527 .. get_subpath (ellipse,
1528 direction (2 - epsilon) of pat, z14 - z13, z13)
1529 -- get_subpath (ellipse,
1530 z14 - z13, z15 - z14, z14)
1531 -- get_subpath (ellipse,
1532 z15 - z14, z14 - z15, z15)
1533 -- get_subpoint (ellipse, z14 - z15, z14)
1534 -- get_subpoint (ellipse, -direction (2 - epsilon) of pat, z13)
1535 .. get_subpath (ellipse,
1536 -direction 1 of pat, -direction 1 of pat, z12)
1539 z16 = (xoffs + 0.90 reduced_il, yoffs - 0.05 reduced_il);
1540 z17 = (xoffs + 0.80 reduced_il, yoffs - 0.05 reduced_il);
1541 z18 = (xoffs + 0.50 reduced_il, yoffs + 0.10 reduced_il);
1542 z19 = (xoffs + 0.20 reduced_il, yoffs - 0.05 reduced_il);
1549 fill get_subpath (ellipse,
1550 -direction 0 of pat, direction 0 of pat, z16)
1551 .. get_subpoint (ellipse, direction 1 of pat, z17)
1552 .. get_subpath (ellipse,
1553 direction (2 - epsilon) of pat, z19 - z18, z18)
1554 -- get_subpoint (ellipse, z19 - z18, z19)
1555 -- get_subpoint (ellipse, -direction (2 - epsilon) of pat, z18)
1556 .. get_subpoint (ellipse, -direction 1 of pat, z17)
1559 labels (11, 12, 13, 14, 15, 16, 17, 18, 19);
1563 fet_beginchar ("Hufnagel fa clef", "hufnagel.fa");
1564 draw_staff_if_debugging (-1, 3);
1565 draw_hufnagel_fa_clef ((0, 0), 1.0);
1569 fet_beginchar ("Hufnagel fa clef", "hufnagel.fa_change");
1570 draw_hufnagel_fa_clef ((0, 0), .8);
1574 def draw_hufnagel_do_fa_clef (expr exact_center, reduction) =
1575 draw_hufnagel_do_clef (exact_center, reduction);
1576 draw_hufnagel_fa_clef (exact_center + (0, -2 staff_space#), reduction);
1578 set_char_box (0 - xpart exact_center,
1579 1.20 reduced_il# + xpart exact_center,
1580 1.15 reduced_il# + 2 staff_space# - ypart exact_center,
1581 0.75 reduced_il# + ypart exact_center);
1585 fet_beginchar ("Hufnagel do/fa clef", "hufnagel.do.fa");
1586 draw_staff_if_debugging (-1, 3);
1587 draw_hufnagel_do_fa_clef ((0, 0), 1.0);
1591 fet_beginchar ("Hufnagel do/fa clef", "hufnagel.do.fa_change");
1592 draw_hufnagel_do_fa_clef ((0, 0), .8);
1598 %% Medieval East-Slavic (Kievan) Notation clefs
1599 %% Code by Aleksandr Andreev <aleksandr.andreev@gmail.com>
1603 def draw_kievan_do_clef =
1604 z1 = (1.108 staff_space, 0.554 staff_space);
1605 z2 = (1.063 staff_space, -0.122 staff_space);
1606 z3 = (1.467 staff_space, -1.621 staff_space);
1607 z4 = (1.002 staff_space, -2.253 staff_space);
1612 z6 = (0.917 staff_space, -0.383 staff_space);
1613 z7 = (0.012 staff_space, -0.448 staff_space);
1614 z8 = (0, -0.167 staff_space);
1615 z9 = (0.057 staff_space, 0.464 staff_space);
1616 z10 = (0.994 staff_space, 0.387 staff_space);
1617 z11 = (1.023 staff_space, 0.554 staff_space);
1636 set_char_box (0, 1.5 staff_space#,
1637 2.25 staff_space#, 0.55 staff_space#);
1641 fet_beginchar ("Kievan tsefaut clef", "kievan.do");
1642 % This draws the Tse-Fa-Ut clef; it is a variant alto clef that
1643 % always occurs on the third line of the staff.
1644 draw_kievan_do_clef;
1648 fet_beginchar ("Kievan tsefaut clef", "kievan.do_change");
1649 % This is the same thing as a do clef?
1650 draw_kievan_do_clef;
1653 fet_endgroup ("clefs");