/usr/share/lilypond/2.14.2/fonts/source/feta-clefs.mf is in lilypond-data 2.14.2-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 | % Feta (not the Font-En-Tja) music font -- implement Clefs -*-Fundamental-*-
% This file is part of LilyPond, the GNU music typesetter.
%
% Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>,
% Jan Nieuwenhuizen <janneke@gnu.org>,
% Juergen Reuter <reuter@ipd.uka.de>
%
% LilyPond is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% LilyPond is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
fet_begingroup ("clefs");
%
% [Wanske] says the bulbs should be positioned about 1/4 right of the
% `arrow'.
%
% TODO: The hair-curve at z6r looks a little awkward.
%
def draw_c_clef (expr reduction) =
save hair, norm, reduced_ss, right_edge;
save xoff;
reduced_ss# = staff_space# * reduction;
norm# := 2/3 reduced_ss#;
hair# := 0.06 reduced_ss# + 0.5 linethickness#;
right_edge# = 15/4 norm# + 2 hair#;
define_pixels (norm, reduced_ss, right_edge);
define_whole_vertical_blacker_pixels (hair);
set_char_box (0, right_edge#, 2 reduced_ss#, 2 reduced_ss#);
% make unreduced glyph fit exactly into five staff lines
if reduction = 1:
h := d := 2 staff_space_rounded;
fi;
% assure that the gap between the left and right stem
% has the same number of pixels as the thickness of the right
% stem
draw_block ((0, -d + feta_shift),
(3/4 norm + 1/2 hair, h));
draw_block ((3/4 norm + 1/2 hair + hround (3/2 hair), -d + feta_shift),
(3/4 norm + 1/2 hair + 2 hround (3/2 hair), h));
% assure symmetry
h := h - feta_shift;
pickup feta_fillpen;
xoff = 3/4 norm + 1/2 hair + 2 hround (3/2 hair);
z5l = (xoff - 3/4 hair, 0);
z5r = (x4, 0);
penpos1 (hair - pen_top - pen_bot, -90);
top z1l = (xoff + norm + hair, h);
penpos2 (hround (norm - 3/2 hair) - pen_lft - pen_rt, 180);
rt z2l = (w, h / 2);
penpos3 (hair - pen_top - pen_bot, 90);
bot z3l = ((right_edge - xoff) / 2 + xoff,
vround (.5 norm - 1.5 hair));
penpos4 (hair - pen_lft - pen_rt, 0);
top z4 = (xoff + 1/2 norm + 1/2 hair,
vfloor (reduced_ss - linethickness - .2 hair));
bot z6 = (xoff + 3/4 norm, vround (.5 norm - .5 hair));
save t;
t = 0.833;
save pat;
path pat;
pat = z5l{curl 1}
.. z4l{up}
.. z4r{down}
.. z3r{right}
..tension t.. z2r{up}
..tension t.. flare_path (top z1l, 180, 90,
hair, hfloor (norm - 1/2 hair), -1)
..tension t.. z2l{down}
.. z3l{left}
.. z6
.. z5r{down};
filldraw pat shifted (0, feta_shift)
-- reverse pat yscaled -1 shifted (0, -feta_eps)
-- cycle;
penlabels (1, 2, 3, 4, 5, 6);
% ugh, should be bulb, not flare?
draw_staff (-2, 2, 0);
enddef;
fet_beginchar ("C clef", "C");
draw_c_clef (1.0);
fet_endchar;
fet_beginchar ("C clef", "C_change");
draw_c_clef (.8);
fet_endchar;
%
% New bulb routine:
%
% Insert a brushed piece of the path, and draw the rest of the bulb
% separately.
%
% The bulb has circular form. Neat merging of the bulb and brushed path
% is done by playing with tension.
%
def new_bulb (expr start_point, start_angle,
outer_tangent_point,
end_point, end_angle,
big_radius, bulb_radius, flare,
direction, turning_dir) =
begingroup;
save pat, before, after;
save center;
save u, v;
path pat, before, after;
pair center;
clearxy;
center = outer_tangent_point
+ big_radius * dir (0);
% + (big_radius - bulb_radius) * dir (-turning_dir * 90)
z1' = center + bulb_radius * dir (turning_dir * 180);
z2' = outer_tangent_point + flare * dir (0);
z3' = center + bulb_radius * dir (0);
z4' = center + bulb_radius * dir (turning_dir * 90);
z5' = center - 0.5 [big_radius, bulb_radius] * dir (turning_dir * 90);
labels (1', 2', 3', 4', 5');
before := z3'{dir (turning_dir * 90)}
.. z4'{-dir (0)}
..tension 1.1.. z1'{-dir (turning_dir* 90)};
after := z2'{dir (turning_dir * 90)}
.. end_point{dir (end_angle)};
(u, v) = before intersectiontimes after;
pat := start_point{dir (start_angle)}
.. outer_tangent_point{dir (-turning_dir * 90)}
..tension 1.02.. z5'{dir (0)}
.. subpath (0, u) of before
.. subpath (v, infinity) of after;
if direction = 0:
pat := reverse pat;
fi
pat
endgroup
enddef;
%
% There is some variation in the shape of bass clefs.
%
% * In some clefs the size of the swoosh tip almost reaches the
% bottom staff line; in some it crosses the 2nd line from the bottom
% with a small overshoot.
%
% The most popular design is where the X part of the tip is aligned
% with the left bulb boundary, and the Y part ends on the 2nd
% staffline exactly. This is what we do.
%
% * The diameter of the bulb is the width of the open space.
%
% * The vertical center of the bulb can be on or slightly above the
% staff line.
%
% * The vertical position of the dots can be symmetrical around the
% staffline, centered in the staff space. The Baerenreiter SCS has
% the bottom dot raised by approximately 0.1 staff space.
%
% * Uncarefully set music may have overshoots at the top. We have none.
%
% * It is not exactly clear where the vertical tangent at the right
% of the swoosh should be.
%
def draw_bass_clef (expr exact_center, reduction) =
save reduced_ss, swoosh_width;
save right_thickness, right_offset, tip_protrude;
save dot_diam, bulb_y_offset, bulb_flare;
pair tip_protrude;
reduced_ss# = staff_space# * reduction;
2.2 dot_diam# = reduction * (staff_space# - stafflinethickness#);
right_thickness# = 0.37 staff_space# + 1.2 linethickness#;
swoosh_width# = 2.1 reduced_ss#;
define_pixels (swoosh_width);
define_whole_pixels (reduced_ss);
define_whole_blacker_pixels (dot_diam, right_thickness);
right_offset = 0.05 staff_space;
bulb_y_offset := 0.075 staff_space;
bulb_flare := 2.5 linethickness;
% tip_protrude := (-linethickness, -.2 staff_space);
tip_protrude := (0, 0);
set_char_box (-xpart exact_center,
xpart exact_center + swoosh_width# + 7/12 reduced_ss#,
-ypart exact_center + 2.5 reduced_ss#,
ypart exact_center + reduced_ss#);
y1 = bulb_y_offset;
x1 = 0;
x2 = .5 [x1, x3];
x2l = x2r = x2;
y2l := vround_pixels (reduced_ss# + 0.5 linethickness#);
y2l - y2r = linethickness;
x3l - x1 = swoosh_width;
x3l - x3r = right_thickness;
% optical correction: the top dot seems farther away if y3l = 0.
y3l = right_offset;
z4 = -(0, 2.0 reduced_ss) + tip_protrude;
penpos3 (whatever, 185);
penpos4 (linethickness, 135);
fill new_bulb (z2l, 180, z1, z2r, 0,
0.45 reduced_ss, 0.4 reduced_ss,
bulb_flare, 1, 1)
.. z3r{down}
.. {curl 0}simple_serif (z4r, z4l, 90){curl 0}
.. z3l{up}
..tension 0.9.. cycle;
pickup pencircle scaled dot_diam;
lft x5 = hround (x3l + 1/3 reduced_ss - dot_diam / 2);
bot y5 = vfloor (.5 reduced_ss - dot_diam / 2);
z6 = z5 yscaled -1;
% for symmetry
y5 := y5 + feta_shift;
drawdot z5;
drawdot z6;
penlabels (1, 2, 3, 4, 5, 6);
draw_staff (-3, 1, 0);
enddef;
fet_beginchar ("F clef ", "F");
draw_bass_clef ((0, 0), 1.0);
fet_endchar;
fet_beginchar ("F clef (reduced)", "F_change");
draw_bass_clef ((0, 0), 0.8);
fet_endchar;
%
% Inspired by Baerenreiter
%
%
% Beste lezers, kijk,
%
% Een bolletje hebben we bij toeval allemaal wel eens getekend, maar begint u
% toch eenvoudig. Eerst een eenvoudig kruis of herstellingsteken
% en via de dubbelslag naar een voorzichtig vlaggetje, en heb geduld!
% Ikzelf heb bijvoorbeeld over mijn eerste gave G-sleutel
% 35 kilobyte metafont, 12 patchlevels, 0 vriendinnen en 45 dagen gedaan
%
% -- vrij naar Van Kooten & De Bie
%
def debugfill = fill enddef;
def draw_gclef (expr reduction) =
save reduced_ss, downstroke_dir, downstroke_angle, center;
save breapth_factor, inner_thick_end, thinness, thickness, thinnib;
save start_angle, inner_start_angle;
save upward_swoosh_angle, bot_angle;
save pat;
save corr_angle, corr, left_, right_, up_, down_, bot_angle_;
path pat;
pair downstroke_dir, center;
transform corr;
pair left_, right_, up_, down_;
reduced_ss# = staff_space# * reduction;
define_pixels (reduced_ss);
thinness = 0.095 staff_space + 0.75 linethickness;
downstroke_dir = unitvector (14, -75);
downstroke_angle = angle downstroke_dir;
bot_angle = -180; % downstroke_angle - 87
upward_swoosh_angle = 132;
start_angle = -97;
breapth_factor = 21/14;
inner_thick_end = 45;
inner_start_angle = downstroke_angle - 43;
thickness = .32 reduced_ss + 1.1 linethickness;
thinnib = thinness;
set_char_box (0, 1.71 * breapth_factor * reduced_ss#,
2.6 * reduced_ss#, 5 * reduced_ss#);
center := (breapth_factor * reduced_ss, 0);
z1 = center + whatever * dir (inner_start_angle);
x1 = xpart center - .28 reduced_ss;
penpos1 (thinnib, inner_start_angle);
x2r = xpart center;
y2r = vround_pixels (reduced_ss# + .5 stafflinethickness#);
penpos2 (thickness, 90);
z3 = (z4 - center) rotated inner_thick_end + center;
penpos3 (thinnib, -90 + inner_thick_end);
x4 = xpart center - .1 reduced_ss;
y4r = -y2r + feta_shift;
penpos4 (thinnib, -90);
x5r = -breapth_factor * reduced_ss + xpart center;
y5r = .37 reduced_ss + ypart center;
penpos5 (thickness, upward_swoosh_angle);
z6 = center + whatever * downstroke_dir;
y6 = ypart center + 2 reduced_ss;
% penpos6 is computed later
z7l - z6 = whatever * (z5 - z6) ;
y7l = 3.5 reduced_ss;
penpos7 (thickness, upward_swoosh_angle);
x9 = .7 [x10, x7r];
top y9l = 5 reduced_ss;
penpos9 (1.45 thickness, -70);
x11 - x13r = 1.5 reduced_ss + 0.5 thinnib;
y11 = ypart center - 47/28 reduced_ss;
y12 = ypart center - 71/28 reduced_ss;
y13 = .48 [y12, y4r];
x12r = xpart (.45 [z13r, z11] + .75 reduced_ss * downstroke_dir);
% z10 = center + whatever * dir (downstroke_angle - 1.5);
x10 = x6 - 2 thinnib;
y10 = ypart center + 3.5 reduced_ss;
y10l - y10r = 1.0 thickness;
z10r - z10l = .7 thinnib * dir (downstroke_angle + 90)
+ whatever * downstroke_dir;
z10 = .5 [z10l, z10r];
z11 = center + whatever * downstroke_dir + (-0.05 reduced_ss, 0);
penpos11 (thinnib, start_angle + 90);
penpos12 (thinnib, bot_angle + 90);
penpos13 (thinnib + 0.14 staff_space, 180);
% this auxiliary point ensures good contour overlapping
z8 = .5 [z9l, z9r] + .25 ((z9r - z9l) rotated -90);
z20 = z9l - (0, .25 blot_diameter);
penpos20 (blot_diameter, 0);
pat := z10{down}
.. z6
..tension 1.1.. z11{dir (start_angle)};
penpos6 (thinnib, angle (direction 1 of pat) + 90);
% two auxiliary points to simulate `draw' with `penstroke'
z10' = point 0.3 of pat;
penpos10' (1.3 thinnib, angle (direction 0.3 of pat) + 50);
z11' = point 1.5 of pat;
penpos11' (thinnib, angle (direction 1.5 of pat) + 90);
z21l = z20l;
z21r = z9r;
% after computing all points, we want to rotate the clef
% rotating the whole picture won't work due to the complexity
% of the path and metafont's memory limitations, so we transform
% each point and draw the clef thereafter
corr_angle := 1.5;
corr := identity rotatedabout (center, -corr_angle);
bot_angle_ := bot_angle + corr_angle;
left_ := left rotated corr_angle;
right_ := right rotated corr_angle;
up_ := up rotated corr_angle;
down_ := down rotated corr_angle;
% transform points; we transform every point and save it
% to a shifted index range: z1 -> z101, z2 -> z102, etc.
for n := 1 upto 21:
forsuffixes e := l,,r:
z[n+100]e = z[n]e transformed corr;
endfor
endfor
% transform helper points
for n := 10, 11:
forsuffixes e := l,,r:
z[n+100]'e = z[n]'e transformed corr;
endfor
endfor
pat := z121l
.. z110l{down}
.. z110'l;
fill z102l{right}
.. z103l
.. z104l{left_}
..tension 1.07.. z105l{up_}% inside curve
.. z107l{up_}
..tension 1.2.. z120r{curl 1}
.. {direction 0 of pat}z120l
-- z108
-- z109r % {dir (downstroke_angle + 0)}
..tension 0.8.. z107r{down_}
.. z105r{down_}
.. z104r{right_}
.. z103r
.. z102r{left_}
..tension .95.. z101r
-- simple_serif (z101r, z101l, 80)
-- z101l
..tension 0.85.. cycle;
penstroke z121e
.. z110e{down_}
.. z110'e
.. z106e
.. z111'e
.. z111e{dir (-95 + corr_angle)}
.. z112e{dir (bot_angle_)};
fill new_bulb (z112r, bot_angle_, z113r, z112l, bot_angle_ + 180,
0.45 reduced_ss, 0.38 reduced_ss,
thinnib + .05 staff_space, 1, -1)
-- cycle;
penlabels (range 101 thru 121);
penlabels (110', 111');
draw_staff (-1, 3, 0);
enddef;
fet_beginchar ("G clef", "G");
draw_gclef (1.0);
fet_endchar;
fet_beginchar ("G clef", "G_change");
draw_gclef (0.8);
fet_endchar;
%%%%
%
% PERCUSSION
%
%
% The percussion clef extent is not coincident with its bbox, since
% the percussion clef needs more space in front than a normal clef.
%
def draw_percussion_clef (expr reduction) =
save reduced_ss, razt;
reduced_ss# = staff_space# * reduction;
define_pixels (reduced_ss);
set_char_box (-.67 reduced_ss#, 2.0 reduced_ss#,
reduced_ss#, reduced_ss#);
razt := hround (0.45 reduced_ss);
d := d - feta_shift;
draw_block ((-b, -d), (-b + razt, h));
draw_block ((w - razt, -d), (w, h));
draw_staff (-3, 1, 1);
enddef;
fet_beginchar ("percussion clef", "percussion");
draw_percussion_clef (1.0);
fet_endchar;
fet_beginchar ("percussion clef (reduced)", "percussion_change");
draw_percussion_clef (.8);
fet_endchar;
def draw_tab_T (expr pos, siz, slant) =
begingroup;
save vx, vy;
pair vx, vy;
clearxy;
vx = (xpart siz) * dir 0;
vy = (ypart siz) * dir 90;
penpos1 (.75 penh, 100);
z1 = z2 + (1/6 * vx - .15 * vy);
penpos2 (hround (.9 penw), 0);
x2l = hround xpart (pos + .75 vy);
y2l = ypart (pos + .75 vy);
penpos3 (penh, -100);
z3l = pos + .4 vx + vy;
penpos4 (penh, -90);
z4 = -.1 vy + .5 [z3, z5];
penpos5 (.8 penh, -30);
x5r = xpart (pos + siz);
y5l = ypart (pos + siz);
penpos10 (penw, 170);
z10 = pos + .55 vx + .9 vy;
penpos11 (.75 [penh, penw], 170);
z11 = z10 - .5 vy + .025 vx;
penpos12 (penh, 100);
z12l = (xpart .5 [z13, z11], ypart (pos - .025 * siz));
penpos13 (.75 penh, 60);
z13 = pos + .2 vx + .15 vy;
% penlabels (range 1 thru 13);
soft_penstroke (z1e
..tension 1.1.. z2e
.. z3e{right}
..tension 1.5.. z4e
..z5e)
slanted slant shifted (slant * -ypart pos, 0);
soft_end_penstroke (z10e
..tension 1.5.. z11e
.. z12e
..tension 1.1.. z13e{(z13r - z13l) rotated 90})
slanted slant shifted (slant * -ypart pos, 0);
endgroup;
enddef;
def draw_tab_A (expr pos, siz, slant) =
begingroup;
save vx, vy, pat;
pair vx, vy;
path pat;
clearxy;
vx = (xpart siz) * dir 0;
vy = (ypart siz) * dir 90;
penpos1 (.75 penh, -110);
z1r = pos + .07 vy;
penpos2 (penh, -75);
z2r = (.5 [x1, x3], ypart pos);
penpos3 (.25 [penh, penw], -30);
z3 = (.45 [x2, x4], .15 [y2, y4]);
penpos4 (1 [penh, penw], 0);
z4 = pos + .5 vx + .975 vy;
penpos5 (1 [penh, penw], -180);
z5 = z4;
penpos6 (.2 [penh, penw], -150);
z6l = (.8 [x5l, x7l], .9 [y5l, y7l]);
penpos7 (penh,-90);
z7r = (.5 [x6, x8], ypart pos);
penpos8 (.75 penh, -70);
z8r = (xpart (pos + siz), y7r + .075 ypart (siz));
pat := z2
.. z3
.. z4;
penpos10 (penh, angle (direction 1.2 of pat) - 180);
z10 = point 1.2 of pat;
penpos11 (.9 penh, -90);
z11 = .4 [z10, z6] - 0.05 vy;
penpos12 (.75 penh, -75);
z12 = .3 [z11, z6] + 0.02 vy;
% penlabels (range 1 thru 12);
soft_penstroke (z1e{(z1r - z1l) rotated 90}
.. z2e
.. z3e
.. z4e)
slanted slant shifted (slant * -ypart pos, 0);
soft_end_penstroke (z5e
.. z6e
.. z7e
.. z8e{(z8r - z8l) rotated 90})
slanted slant shifted (slant * -ypart pos, 0);
soft_end_penstroke (z10e
.. z11e
.. z12e)
slanted slant shifted (slant * -ypart pos, 0);
endgroup;
enddef;
def draw_tab_B (expr pos, siz, slant) =
begingroup;
save vx, vy;
pair vx, vy;
clearxy;
vx = (xpart siz) * dir 0;
vy = (ypart siz) * dir 90;
penpos1 (.75 penh, 100);
z1 = z2 + (.15 * vx - .1 * vy);
penpos2 (hround (.9 penw), 0);
x2l = hround xpart (pos + .75 vy);
y2l = ypart (pos + .75 vy);
penpos3 (penh, -100);
z3l = pos + .4 vx + 1.05 vy;
penpos4 (.8 [penh, penw], -180);
z4 = (xpart (pos + .75 siz), .5 [y3, y5]);
penpos5 (.8 penh, 90);
z5 = (.5 [x10, x4], ypart (pos + .55 siz));
penpos6 (.8 penh, 270);
z6 = z5;
penpos7 (penw, 180);
z7l = (xpart (pos + siz), .5 [y6, y8]);
penpos8 (.8 penh, 45);
z8 = .5 [z12l, z11l] + .15 vx - .05 vy;
penpos10 (.75 [penh, penw], 170);
z10 = pos + .375 vx + vy;
penpos11 (.8 [penh, penw], 150);
z11 = z10 - .5 vy + .04 vx;
penpos12 (penh, 100);
z12l = (xpart .5 [z13, z11], ypart pos);
penpos13 (.75 penh, 60);
z13 = pos + .1 vx + .15 vy;
% penlabels (range 1 thru 13);
soft_penstroke (z1e
..tension 1.1.. z2e
.. z3e
.. z4e
..z5e {left})
slanted slant shifted (slant * -ypart pos, 0);
soft_end_penstroke (z6e{right}
.. z7e
.. z8e{(z8r - z8l) rotated 90})
slanted slant shifted (slant * -ypart pos, 0);
soft_end_penstroke (z10e
..tension 1.5.. z11e
.. z12e
..tension 1.1.. z13e{(z13r - z13l) rotated 90})
slanted slant shifted (slant * -ypart pos, 0);
endgroup;
enddef;
def draw_tab_clef (expr reduction) =
save reduced_ss, letterheight, penw, penh;
reduced_ss# = staff_space# * reduction;
letterheight# = 1.8 reduced_ss#;
define_pixels (reduced_ss, letterheight);
set_char_box (-.2 reduced_ss#, 2.8 reduced_ss#,
1.6 letterheight#, 1.6 letterheight#);
penw = .45 reduced_ss;
penh = .2 reduced_ss;
draw_tab_T ((-b + .15 reduced_ss, h - letterheight),
(2.1 reduced_ss, letterheight), 0.2);
draw_tab_A ((-b - .05 reduced_ss, -.5 letterheight +.15 reduced_ss),
(2.2 reduced_ss, letterheight), 0.4);
draw_tab_B ((-b + .025 reduced_ss, -d),
(2.1 reduced_ss, letterheight), 0.25);
draw_staff (-3, 2, 0.5);
enddef;
fet_beginchar ("tab clef", "tab");
draw_tab_clef (1.0);
fet_endchar;
fet_beginchar ("tab clef (reduced)", "tab_change");
draw_tab_clef (.8);
fet_endchar;
fet_endgroup ("clefs");
|