1 % -*- Fundamental -*- (emacs-20 mf mode mucks
2 % feta-schrift.mf -- implement scripts
4 % source file of the Feta (defintively not an abbreviation for Font-En-Tja)
7 % (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
8 % Jan Nieuwenhuizen <janneke@gnu.org>
12 fet_begingroup ("scripts")
15 save alpha, radius, crook_thinness, crook_fatness, dot_radius;
19 % [Wanske] and some Baerenreiter editions
20 % suggest about 80 degrees instead of a half-circle
23 radius# = 1.25 staff_space#;
24 crook_thinness# = 1.5 linethickness#;
25 crook_fatness# = 0.25 staff_space# + 1.5 linethickness#;
27 radius# + crook_fatness# / 2 = h#;
28 radius# + crook_thinness# / 2 = w#;
30 set_char_box (w#, w#, crook_thinness# / 2, h#);
32 define_pixels (radius, crook_thinness, crook_fatness);
33 dot_radius = round (4/6 crook_fatness);
35 penpos1 (crook_thinness, 0);
36 penpos2 (crook_fatness, -90);
41 .. z1l{dir (-alpha - 90)}
42 .. {dir (90 - alpha)}z1r
45 & reverse pat xscaled -1
49 pickup pencircle scaled 2 dot_radius;
51 bot y4 = -crook_thinness / 2;
56 fet_beginchar ("fermata up", "ufermata")
62 fet_beginchar ("fermata down", "dfermata")
68 def draw_short_fermata =
69 save fat_factor, thinness, dot_radius;
70 save left_dist, right_dist;
71 pair left_dist, right_dist;
73 set_char_box (staff_space#, staff_space#, 0, 2.2 staff_space#);
75 dot_radius# = 0.133 staff_space# + 1.33 linethickness#;
76 define_pixels (dot_radius)
79 thinness = 1.5 linethickness;
81 pickup pencircle scaled thinness;
90 z1 - z4 = whatever * (charwd, -charht);
91 z4 = fat_factor [z3, z5];
93 left_dist = (unitvector (z3 - z5) rotated 90) * 0.5 thinness;
94 right_dist = (unitvector (z2 - z3) rotated 90) * 0.5 thinness;
98 --- (((z5 - left_dist) -- (z3 - left_dist)) intersectionpoint
99 ((z1 - right_dist) -- (z4 - right_dist)))
100 --- (z1 - right_dist)
104 --- (z3 + right_dist)
110 pickup pencircle scaled 2 dot_radius;
118 fet_beginchar ("short fermata up", "ushortfermata")
120 labels (1, 2, 3, 4, 5, 6);
124 fet_beginchar ("short fermata down", "dshortfermata")
130 def draw_long_fermata =
131 save stemthick, beamheight, dot_radius, wd;
135 define_pixels (wd, dot_radius);
137 wd# = 2.5 staff_space#;
138 stemthick = 1.5 linethickness;
139 beamheight = 0.3 staff_space + linethickness;
140 dot_radius# = 0.133 staff_space# + 1.333 * linethickness#;
142 set_char_box (wd# / 2, wd# / 2, 0, 3/2 staff_space#);
144 pickup pencircle scaled blot_diameter;
156 pickup pencircle scaled stemthick;
170 & reverse pat xscaled -1
175 pickup pencircle scaled 2 dot_radius;
184 fet_beginchar ("long fermata up", "ulongfermata")
186 labels (1, 2, 3, 4, 5, 6);
190 fet_beginchar ("long fermata down", "dlongfermata")
196 def draw_very_long_fermata =
197 save ibeamheight, obeamheight;
198 save ihwd, ohwd, iht, oht; % inner/outer half_width/height
199 save stemthick, dot_radius;
203 define_pixels (ihwd, ohwd, iht, oht)
205 ihwd# = 1.0 staff_space#;
206 ohwd# = 1.5 staff_space#;
207 iht# = 0.9 staff_space#;
208 oht# = 1.6 staff_space#;
210 stemthick = 1.5 linethickness;
211 ibeamheight = 0.3 staff_space;
212 obeamheight = 0.5 staff_space;
213 dot_radius = (iht - ibeamheight) * 4/10;
215 set_char_box (ohwd#, ohwd#, 0, oht#);
217 pickup pencircle scaled blot_diameter;
223 y3 = oht - obeamheight;
228 y13 = iht - ibeamheight;
237 pickup pencircle scaled stemthick;
239 x4 = -ohwd + stemthick;
243 x14 = -ihwd + stemthick;
255 & reverse opat xscaled -1
264 & reverse ipat xscaled -1
270 pickup pencircle scaled 2 dot_radius;
279 fet_beginchar ("very long fermata up", "uverylongfermata")
280 draw_very_long_fermata;
281 labels (1, 2, 3, 4, 5, 11, 12, 13, 14, 15, 6);
285 fet_beginchar ("very long fermata down", "dverylongfermata")
286 draw_very_long_fermata;
292 % Thumbs are used in cello music.
293 % TODO : thumbs should look like the finger-font and should be placed in
294 % the same way in the score.
297 fet_beginchar ("Thumb", "thumb")
298 save thin, height, width, thick, depth;
299 height# = 5/4 width#;
300 height# = staff_space#;
301 depth# = 1.6 (height# / 2);
303 set_char_box (width# / 2, width# / 2, depth#, height# / 2);
305 define_pixels (height, width);
307 thin = .6 linethickness + 0.06 staff_space;
308 2 thick + 0.5 (height - 2 thin) = width;
312 penpos3 (thick, 180);
319 penlabels (1, 2, 3, 4);
328 y5 = -d + brush_thick / 2;
329 brush_thick = 0.9 thick;
334 draw_brush (z4r, 1.4 thin, z5, brush_thick);
339 % FIXME: rounded endings
341 % `\accent' is TeX reserved.
344 def draw_accent (expr bottom_left, top_right, thickness, diminish) =
345 pickup pencircle scaled thickness;
347 lft x1 = xpart bottom_left;
348 top y1 = ypart top_right;
349 lft x6 = xpart bottom_left;
350 bot y6 = ypart bottom_left;
352 rt z4 = (xpart top_right, (ypart top_right + ypart bottom_left) / 2);
353 x5 = x3 = (xpart top_right + xpart bottom_left) / 2
354 - linethickness + 0.1 staff_space;
355 z3 = whatever [z1, z4];
356 z5 = whatever [z6, z4];
358 penpos1 (thickness, angle (z3 - z1) + 90);
359 penpos3 (thickness, angle (z3 - z1) + 90);
360 penpos4 (thickness, 90);
361 penpos5 (thickness, angle (z6 - z5) + 90);
362 penpos6 (thickness, angle (z6 - z5) + 90);
364 x4 - x7 = diminish * thickness;
376 ..tension 0.8.. rt z4
385 fet_beginchar ("> accent", "sforzato")
386 set_char_box (.9 staff_space#, .9 staff_space#,
387 .5 staff_space#, .5 staff_space#);
389 draw_accent ((-w, -d), (w, h),
390 0.05 staff_space + linethickness, 0.6);
391 penlabels (1, 3, 4, 5, 6);
396 fet_beginchar ("espr", "espr")
397 set_char_box (1.9 staff_space#, 1.9 staff_space#,
398 .5 staff_space#, .5 staff_space#);
400 draw_accent ((w - 1.78 staff_space, -d), (w, h),
401 0.05 staff_space + linethickness, 0.6);
402 addto currentpicture also currentpicture xscaled -1;
406 fet_beginchar ("staccato dot", "staccato")
408 radius# = 0.20 * staff_space#;
409 define_whole_pixels (radius);
411 pickup pencircle scaled 2 radius;
414 set_char_box (radius#, radius#, radius#, radius#);
418 def draw_staccatissimo =
420 height# = .8 staff_space#;
421 radius# = linethickness# + .1 staff_space#;
422 define_whole_pixels (radius);
423 define_pixels (height);
425 draw_brush ((0, 0), linethickness, (0, height), 2 radius);
427 set_char_box (radius#, radius#,
428 blot_diameter# / 2, height# + radius#);
432 fet_beginchar ("staccatissimo/martellato up", "ustaccatissimo")
437 fet_beginchar ("staccatissimo/martellato down", "dstaccatissimo")
443 fet_beginchar ("portato/single tenuto", "tenuto")
445 thick# = 1.6 linethickness#;
446 define_whole_pixels (thick);
448 set_char_box (.6 staff_space#, .6 staff_space#,
449 thick# / 2,thick# / 2);
451 pickup pencircle scaled thick;
452 draw_rounded_block ((-b, -thick / 2), (w, thick / 2), thick);
458 thick# = 1.4 linethickness#;
459 radius# = 1.2 linethickness# + 0.04 staff_space#;
460 define_whole_pixels (thick, radius);
462 set_char_box (.6 staff_space#, .6 staff_space#,
463 thick# / 2, .5 staff_space# + radius#);
465 draw_rounded_block ((-b, -thick / 2), (w, thick / 2), thick);
467 pickup pencircle scaled 2 radius;
472 fet_beginchar ("portato/tenuto with staccato", "uportato")
477 fet_beginchar ("portato/tenuto with staccato", "dportato")
484 save fat_factor, thinness;
485 save left_dist, right_dist;
486 pair left_dist, right_dist;
488 set_char_box (staff_space# / 2, staff_space# / 2,
489 0, 1.1 staff_space#);
492 thinness = linethickness;
494 pickup pencircle scaled thinness;
503 z1 - z4 = whatever * (charwd, -charht);
504 z4 = fat_factor [z3, z5];
506 left_dist = (unitvector (z3 - z5) rotated 90) * 0.5 thinness;
507 right_dist = (unitvector (z2 - z3) rotated 90) * 0.5 thinness;
511 --- (((z5 - left_dist) -- (z3 - left_dist)) intersectionpoint
512 ((z1 - right_dist) -- (z4 - right_dist)))
513 --- (z1 - right_dist)
517 --- (z3 + right_dist)
525 fet_beginchar ("marcato up", "umarcato")
527 labels (1, 2, 3, 4, 5);
532 % The down marcato char (not very much used).
533 % Contrary to what some MF/TeX `gurus' believe
534 % it is *point*-symmetric with the "up" version
537 fet_beginchar ("marcato down", "dmarcato")
544 % used in french horn music todo
546 % TODO: too light at 20pt
549 fet_beginchar ("open (unstopped)", "open")
550 save thin, height, width, thick;
552 height# = 5/4 width#;
553 height# = staff_space#;
554 thin = .6 linethickness + 0.06 staff_space;
556 set_char_box (width# / 2, width# / 2, height# / 2, height# / 2);
558 define_pixels (width, height);
560 2 thick + 0.6 (height - 2 thin) = width;
564 penpos3 (thick, 180);
571 penlabels (1, 2, 3, 4);
581 fet_beginchar ("plus (stopped)", "stopped")
584 thick = 2 linethickness;
585 size# = 1.1 staff_space#;
587 set_char_box (size# / 2, size# / 2, size# / 2, size# / 2);
589 draw_rounded_block ((-b, -thick / 2), (w, thick / 2), thick);
590 addto currentpicture also currentpicture rotated 90;
594 fet_beginchar ("Upbow", "upbow")
597 thick = 1.4 linethickness;
598 wd# = 1.3 staff_space#;
601 set_char_box (wd# / 2, wd# / 2, 0, ht#);
603 draw_accent ((-h, -w), (0, w), thick, 0.9);
604 currentpicture := currentpicture rotated -90;
608 fet_beginchar ("Downbow", "downbow")
609 save stemthick, beamheight, wd;
615 wd# = 1.5 staff_space#;
616 stemthick = 1.2 linethickness;
618 set_char_box (wd# / 2, wd# / 2, 0, 4/3 staff_space#);
622 pickup pencircle scaled blot_diameter;
634 pickup pencircle scaled stemthick;
648 & reverse pat xscaled -1
655 % Inspired by a computer-set version of Auf dem Strom by Baerenreiter.
659 save thin, thick, ball_diam, darkness;
660 save wd, ht, thick_nibangle, ball_nib_thick;
664 wd# = 35/16 staff_space#;
665 ht# = 18/17 staff_space#;
666 darkness = 0.3 linethickness + 0.09 staff_space;
668 set_char_box (wd# / 2, wd# / 2, ht# / 2, ht# / 2);
673 ball_nib_thick = 2.7 darkness;
674 ball_diam = ball_nib_thick + (h - ball_nib_thick) / 10;
684 penpos1 (1.1 thick, thick_nibangle);
685 penpos2 (thick, thick_nibangle);
687 penpos4 (ball_nib_thick, -90);
690 swoosh := z1l{curl 0}
698 .. (swoosh scaled -1)
702 y5r = y4l - ball_diam / 2;
705 penpos5 (1.6 ball_diam / 2, 10);
706 penpos6 (ball_diam / 2, 150);
713 fill ploop scaled -1;
717 fet_beginchar ("Reverse turn","reverseturn")
719 currentpicture := currentpicture yscaled -1;
723 fet_beginchar ("Turn","turn")
725 penlabels (1, 2, 3, 4, 5, 6, 7);
730 % Inspired by a (by now) PD edition of Durand & C'ie edition of
731 % Saint-Saens' Celloconcerto no. 1
733 % FIXME take out hardcoded vars.
734 % FIXME the two loops on the `t' should be smoother (and the left one bigger).
735 % FIXME generic macros for serifs: top of the t and bottom of r
738 fet_beginchar ("Trill (`tr')", "trill")
739 save start_nib_angle, ascender_extra, ex, hair_thick, fatness;
740 save slant, t_fatness, r_fatness, kerning, t_overshoot;
741 save uitschieter, bulb_size, krul_ang;
744 ascender_extra# = 1/2 ex#;
745 ascender# = ascender_extra# + ex#;
746 ex# = 1.4 staff_space#;
748 start_nib_angle = 20;
750 define_pixels (ex, ascender_extra, ascender, kerning);
752 t_overshoot = 0.03 ex;
754 t_fatness = 0.78 fatness;
755 t_width = 1.9 t_fatness;
756 r_fatness = 0.78 fatness;
757 uitschieter = 0.48 ex;
758 hair_thick = linethickness;
759 r_flare = .5 hair_thick + 0.25 r_fatness;
760 r_width = 2 r_fatness + 0.25 kerning;
763 local_copy (transform)(currenttransform);
764 currenttransform := currenttransform slanted slant
765 shifted (-staff_space, 0);
767 set_char_box (.85 staff_space#, .85 staff_space#, 0, ascender#);
771 % try to position in such a way that the center is the visual
774 x1l = 0.2 staff_space;
775 x1r - x1l = t_fatness;
776 penpos1 (start_nib_wid, start_nib_angle);
779 penpos2 (start_nib_wid, start_nib_angle);
781 z3l = (x2l + 0.5 t_width, - t_overshoot);
783 z4l = (x2l + t_width, 0.23 ex);
784 penpos4 (whatever, 180); % 200
785 x4l - x4r = hair_thick;
787 x3r = 0.5 [x4r, x2r];
788 % 1.7 [x3l, x3r] = x4r;
789 y3r - y3l = 0.6 t_fatness;
796 pickup pencircle scaled hair_thick;
798 z5 = (x2l + t_fatness / 2, 2/3 ex);
799 lft x6 = x2l - uitschieter;
800 y6 = y5; % - 1/20 ex;
801 z7 = z5 + whatever * dir krul_ang;
802 up_angle = krul_ang; % = angle (z7-z5)
803 x7 = 5/10 kerning + x5;
811 z4' = point 0.85 of krul_p;
812 penpos4' (hair_thick, angle (direction 0.85 of krul_p) + 90);
814 % the body of the `t' and the bottom loop
815 fill z1r{dir (angle (z1l - z1r) + 30)}
816 .. z1l{-dir (angle (z1r - z1l) - 45)}
818 ..tension (1 + .5 slant).. z3l{right}
820 .. z4'l{direction 0.85 of krul_p}
821 -- z4'r{-direction 0.85 of krul_p}
824 ..tension (1.5 + .7 slant).. z2r{up}
828 z5' = point 1.1 of krul_p;
829 penpos5' (hair_thick, angle (direction 1.1 of krul_p) + 90);
830 z5'' = point 1.5 of krul_p;
831 penpos5'' (hair_thick, angle (direction 1.5 of krul_p) + 90);
832 z5''' = point 1.8 of krul_p;
833 penpos5''' (hair_thick, angle (direction 1.8 of krul_p) + 90);
834 z6 = point 2 of krul_p;
835 penpos6 (hair_thick, angle (direction 2 of krul_p) + 90);
836 z6' = point 2.3 of krul_p;
837 penpos6' (hair_thick, angle (direction 2.3 of krul_p) + 90);
838 z6'' = point 2.6 of krul_p;
839 penpos6'' (hair_thick, angle (direction 2.6 of krul_p) + 90);
840 z6''' = point 2.9 of krul_p;
841 penpos6''' (hair_thick, angle (direction 2.9 of krul_p) + 90);
842 penpos7 (hair_thick, up_angle + 90);
843 z7' = point 3.3 of krul_p;
844 penpos7' (hair_thick, angle (direction 3.3 of krul_p) + 90);
847 penstroke z5'e{direction 1.1 of krul_p}
848 .. z5''e{direction 1.5 of krul_p}
849 .. z5'''e{direction 1.8 of krul_p}
850 .. z6e{direction 2 of krul_p}
851 .. z6'e{direction 2.3 of krul_p}
852 .. z6''e{direction 2.6 of krul_p}
853 .. {direction 2.9 of krul_p}z6'''e;
857 penpos9 (r_fatness, 0);
860 y10 = -0.3 linethickness;
861 penpos10 (r_fatness, 0);
863 penpos11 (hair_thick, -4);
866 z13l = (x9l + r_width, y11 - linethickness);
867 penpos13 (r_flare, 180);
869 z15 = z13r - (bulb_size * r_fatness, 0);
870 z14 = 0.5 [z13l, z15] - (0, bulb_size * r_fatness);
879 (u, v) = before intersectiontimes after;
881 % the connection between `t' and `r', the body of the `r',
882 % and part of the bulb
886 --- simple_serif (z10l, z10r, -30)
888 ..tension 0.94.. z13r{down}
891 .. subpath (0, u) of before
892 .. subpath (v, infinity) of after
895 % the rest of the bulb
897 ..tension 1.06.. z13l{down}
901 penlabels (range 1 thru 15);
902 penlabels (4', 5', 5'', 5''', 6', 6'', 6''', 7');
907 save radius, thickness;
911 radius# := .5 staff_space#;
912 define_pixels (radius);
914 set_char_box (radius#, radius#, radius#, 2/3 staff_space#);
916 thickness := 1.5 linethickness;
918 pickup pencircle scaled thickness;
937 & reverse pat xscaled -1
943 fet_beginchar ("left heel", "upedalheel")
949 fet_beginchar ("right heel", "dpedalheel")
956 save ht, wd, thickness;
958 thickness := 1.5 linethickness;
959 ht# := 1.5 staff_space#;
961 define_pixels (ht, wd);
963 set_char_box (wd#, wd#, 0, ht#);
964 draw_accent ((-h, -w), (0, w), thickness, 0.9);
965 currentpicture := currentpicture rotated -90;
969 fet_beginchar ("left toe", "upedaltoe")
974 fet_beginchar ("right toe", "dpedaltoe")
980 fet_beginchar ("Flageolet", "flageolet")
981 save height, width, thickness;
982 height #= 4/15 staffsize#;
984 thickness #= blot_diameter#;
985 define_pixels (height, width, thickness);
987 set_char_box (width# / 2, width# / 2, height# / 2, height# / 2);
989 pickup pencircle scaled thickness;
991 penpos1 (thickness, 90);
992 penpos2 (thickness, 180);
993 penpos3 (thickness, 270);
994 penpos4 (thickness, 0);
999 rt x4 - lft x2 = width;
1003 bot y3 = -height / 2;
1005 penlabels (1, 2, 3, 4);
1016 % TODO: ARGRGHGH code dup.
1019 fet_beginchar ("Segno", "segno")
1020 save thin, thick, ball_diam, darkness, pointheight;
1021 save wd, ht, thick_nibangle, ball_nib_thick;
1025 ht# = 3 staff_space#;
1026 wd# = 2 staff_space#;
1027 darkness = .08 staff_space + 0.4 linethickness;
1029 set_char_box (wd# / 2, wd# / 2, ht# / 2, ht# / 2);
1031 thick_nibangle = 30;
1034 ball_nib_thick = 2.7 darkness;
1035 ball_diam = ball_nib_thick + (w - ball_nib_thick) / 10;
1036 pointheight = 2 linethickness;
1046 penpos1 (thick, 2 thick_nibangle);
1047 penpos2 (thick, thick_nibangle);
1048 penpos3 (thin, -90);
1049 penpos4 (ball_nib_thick, 180 - thick_nibangle);
1054 swoosh := z1l{curl 0}
1062 .. (swoosh scaled -1)
1066 x5r = x4l - ball_diam / 2;
1069 penpos5 (1.6 ball_diam / 2, 100);
1070 penpos6 (ball_diam / 2, 240);
1077 fill ploop scaled -1;
1079 penpos7 (2 thin, 0);
1081 penpos8 (2 thin, 0);
1087 pickup pencircle scaled 2 thin;
1088 drawdot (-x2r, pointheight);
1089 drawdot (x2r, -pointheight);
1091 penlabels (range 1 thru 8);
1095 fet_beginchar ("Coda", "coda")
1096 save stickout, thin, thick, codawidth, codaheight;
1098 stickout# = 0.35 staff_space#;
1099 codawidth# = 2/3 staff_space#;
1100 codaheight# = staff_space#;
1101 define_pixels (codawidth, codaheight);
1103 set_char_box (codawidth# + stickout#, codawidth# + stickout#,
1104 codaheight# + stickout#, codaheight# + stickout#);
1106 thin = 1.2 linethickness;
1107 0.1 (codaheight - 2 thin) = (codawidth - 2 thick);
1110 penpos2 (thin, -90);
1111 penpos3 (thick, -180);
1112 penpos4 (thin, -270);
1121 penlabels (1, 2, 3, 4);
1129 draw_gridline ((0,-h),(0,h),thin);
1130 draw_gridline ((-w,0),(w,0),thin);
1134 fet_beginchar ("Varied Coda", "varcoda")
1135 save thin, thick, codawidth, codaheight;
1136 thin# = 1.2 linethickness#;
1137 thick# = 1.0 linethickness# + 0.25 staff_space#;
1138 codawidth# = 2/3 staff_space#;
1139 codaheight# = staff_space#;
1140 define_pixels (thin, thick, codawidth, codaheight);
1142 set_char_box (codawidth# + thick#, codawidth# + thick#,
1143 codaheight# + thick#, codaheight# + thick#);
1149 draw_rounded_block (z1, z2, blot_diameter);
1155 draw_rounded_block (z3, z4, blot_diameter);
1157 labels (1, 2, 3, 4);
1159 addto currentpicture also currentpicture scaled -1;
1161 draw_gridline ((0, -h), (0, h), thin);
1162 draw_gridline ((-w, 0), (w, 0), thin);
1167 save alpha, thick, thin, ht;
1170 thin# = 1.2 linethickness#;
1171 thick# = 3 linethickness#;
1172 ht# = .6 staff_space#;
1173 define_pixels (thin, thick, ht);
1175 set_char_box (0, .5 staff_space#, ht#, ht#);
1177 penpos1 (thick, alpha);
1178 penpos2 (thick, alpha + 90);
1179 penpos3 (thin, 180 - alpha);
1180 penpos4 (thin, 90 - alpha);
1188 fill z1l{dir (alpha + 90)}
1190 .. z1r{dir (alpha - 90)}
1191 .. z3l{dir (270 - alpha)}
1192 .. z4l{dir (alpha + 180)}
1193 .. z3r{dir (90-alpha)}
1198 fet_beginchar ("Right Comma", "rcomma");
1200 penlabels (1, 2, 3, 4);
1204 fet_beginchar ("Left Comma", "lcomma");
1211 save thick, thin, ht, wd, alpha;
1214 thin# = 1.2 linethickness#;
1215 thick# = 3 linethickness#;
1216 ht# = .6 staff_space#;
1217 wd# = .25 staff_space#;
1218 define_pixels (thin, thick, ht, alpha);
1220 set_char_box (wd#, wd#, ht#, ht#);
1225 draw_brush (z1, thin, z2, thick);
1229 fet_beginchar ("Right Varied Comma", "rvarcomma");
1235 fet_beginchar ("Left Varied Comma", "lvarcomma");
1241 thick# := 1/24 designsize;
1242 define_blacker_pixels (thick);
1244 rthin := 0.075 * staff_space + 0.5 linethickness;
1245 rthick := 2 thick + rthin;
1250 save ne, nw, se, sw;
1256 nw = dir (alpha + 180);
1257 ne = dir (alpha + 90);
1259 sw = dir (alpha - 90);
1261 penpos1 (rthin, alpha + 90);
1262 penpos2 (5/4 rthick, alpha);
1263 penpos3 (3/4 rthick, alpha);
1264 penpos4 (5/4 rthick, alpha);
1265 penpos5 (rthin, alpha + 90);
1267 z1 = (width / 2, height) - overshoot * se;
1268 z2 = 2 [z4, (width / 2, height / 2)];
1270 x4 = 2/8 staff_space;
1273 z5 = 2 [z1, (width / 2, height / 2)];
1274 z6 = z2l + 1/2 rthin * sw;
1275 z7 = z4l + 1/2 rthin * sw + 1/2 rthin * se;
1276 z8 = 2 [z6, (width / 2, height / 2)];
1277 z9 = 2 [z7, (width / 2, height / 2)];
1293 fet_beginchar ("Arpeggio", "arpeggio");
1294 % draw_staff (-2, 2, 0.0);
1296 save height, overshoot, width;
1297 height# = staff_space#;
1298 width# = 0.8 height#;
1299 overshoot# = 0.25 staff_space#;
1300 define_pixels (height, overshoot, width);
1302 set_char_box (0, width#, 0, height#);
1304 penlabels (range 1 thru 9);
1309 % Extendable Trill symbol.
1311 % Rename me to Trill, rename Trill to Tr?
1314 fet_beginchar ("Trill_element", "trill_element");
1315 save height, overshoot;
1316 height# = staff_space#;
1317 width# = 0.8 height#;
1318 overshoot# = 0.25 staff_space#;
1319 define_pixels (height, overshoot, width);
1321 set_char_box (0, height#, 0, width#);
1324 currentpicture := currentpicture shifted -(width / 2, height / 2);
1325 currentpicture := currentpicture rotated 90;
1326 currentpicture := currentpicture shifted (height / 2, width / 2);
1331 % Arpeggio arrow by Chris Jackson <chris@fluffhouse.org.uk>
1334 def draw_arpeggio_arrow =
1335 save thinness, height, width, overshoot;
1336 save nw, ne, se, sw;
1338 save before_left, before_right, after_left, after_right;
1339 save u_left, v_left, u_right, v_right;
1340 pair nw, ne, se, sw;
1341 path before_left, before_right, after_left, after_right;
1343 height# = staff_space#;
1344 width# = 0.8 height#;
1345 overshoot# = 0.25 staff_space#;
1346 define_pixels (height, overshoot, width);
1348 set_char_box (0, width#, 0, height#);
1351 nw = dir (alpha + 180);
1352 ne = dir (alpha + 90);
1354 sw = dir (alpha - 90);
1356 penpos1 (rthin, alpha + 90);
1357 penpos2 (5/4 rthick, alpha);
1358 penpos3 (5/4 rthick, 0);
1360 z1 = (width / 2, height) - overshoot * se; % numbering is consistent
1361 % with the arpeggio symbol
1362 z2 = 2 [z4, (width / 2, height / 2)];
1363 z3 = (0.5 width, 0.5 height);
1364 z4 = (0.25 staff_space, rthin);
1365 z6 = z2l + 1/2 rthin * sw;
1366 z9 = (width / 2, height) + overshoot * se;
1368 bot z10 = (0.5 w, 0);
1369 lft z11 = (-0.3 w, 0.8 h);
1370 rt z12 = (1.3 w, 0.8 h);
1372 pickup pencircle scaled 0.5 rthin;
1377 after_left := (z3 + (0, -0.25 rthin / cosd (angle (nw))))
1378 -- (z11 + 0.25 rthin * ne);
1379 (u_left, v_left) = before_left intersectiontimes after_left;
1381 before_right := (z12 + 0.25 rthin * nw)
1382 -- (z3 + (0, -0.25 rthin / cosd (angle (nw))));
1383 after_right := z3r{up}
1386 (u_right, v_right) = before_right intersectiontimes after_right;
1388 fill subpath (0, u_left) of before_left
1389 .. subpath (v_left, infinity) of after_left
1392 .. {dir -50}(z11 + 0.25 rthin * sw)
1393 .. (z10 + 0.25 rthin * sw){dir -70}
1395 .. {dir 70}(z10 + 0.25 rthin * se)
1396 .. (z12 + 0.25 rthin * se){dir 50}
1399 .. subpath (0, u_right) of before_right
1400 .. subpath (v_right, infinity) of after_right
1403 % fill (z3 + (0, -0.25 rthin / cosd (angle (nw))))
1404 % -- (z12 + 0.25 rthin * nw)
1407 % .. (z12 + 0.25 rthin * se){dir -130}
1408 % .. {dir -110}(z10 + 0.25 rthin * se)
1410 % .. (z10 + 0.25 rthin * sw){dir 110}
1411 % .. {dir 130}(z11 + 0.25 rthin * sw)
1414 % .. (z11 + 0.25 rthin * ne)
1419 fet_beginchar ("Arpeggio arrow down", "arpeggio.arrow.M1");
1420 draw_arpeggio_arrow;
1421 penlabels (range 1 thru 12);
1425 fet_beginchar ("Arpeggio arrow up", "arpeggio.arrow.1");
1426 draw_arpeggio_arrow;
1427 currentpicture := currentpicture scaled -1
1428 shifted (0.8 staff_space,
1439 % I actually have no clue how they should look, so we use a slightly curvy
1440 % and tapered shape.
1443 fet_beginchar ("Caesura", "caesura");
1444 save slant, space_between, clearance;
1446 save botthick, topthick;
1450 botthick = 1.5 linethickness;
1451 topthick = 2.5 linethickness;
1453 pickup pencircle scaled botthick;
1456 space_between# = 0.6 staff_space#;
1457 clearance# = 0.2 staff_space#;
1458 height# = 1.2 staff_space#;
1460 set_char_box (0, 2.0 staff_space#,
1461 staff_space# - clearance#, height#);
1462 define_pixels (space_between, clearance, height);
1468 x2 = (y2 - y1) / slant;
1472 alpha = angle (z2 - z1);
1473 penpos1 (botthick, alpha - krom);
1474 penpos3 (botthick, alpha - krom + 90);
1476 penpos2 (topthick, alpha + krom);
1477 penpos4 (topthick, alpha + krom + 90);
1482 penlabels (1, 2, 3, 4);
1484 p := z3r{(z1r - z1l)}
1492 fill p shifted (space_between, 0);
1496 fet_endgroup ("scripts");