X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=mf%2Ffeta-klef.mf;h=e02986ea7c1c55fbf4a084d2d6090cd09fe801b1;hb=91e7cbaa6e54e004365d28e0f10c9362a7f13320;hp=3ac2ba1b77d34809b4141b69c6c74596e69ff313;hpb=c330618390bab7301500f0462e299ba8115ab0bf;p=lilypond.git diff --git a/mf/feta-klef.mf b/mf/feta-klef.mf index 3ac2ba1b77..e02986ea7c 100644 --- a/mf/feta-klef.mf +++ b/mf/feta-klef.mf @@ -1,288 +1,684 @@ -% -% feta-klef.mf -- implement Clefs -% -% source file of the Feta (Font-En-Tja) music font -% -% (c) 1997 Han-Wen Nienhuys , -% Jan Nieuwenhuizen - -fet_begingroup("clefs"); - -def draw_staff(expr first, last)= - pickup pencircle scaled stafflinethickness; - for i:= first step 1 until last: - draw (- interline, i* interline) .. (4 interline, i* interline); - endfor - enddef; +% feta-klef.mf -- implement Clefs -*-Fundamental-*- +% +% part of LilyPond's pretty-but-neat music font +% +% source file of the Feta (not the Font-En-Tja) music font +% +% (c) 1997--2005 Han-Wen Nienhuys , +% Jan Nieuwenhuizen , +% Juergen Reuter + +fet_begingroup ("clefs"); + +% % [Wanske] says the bulbs should be positioned about 1/4 right of the -% "arrow" -def draw_c_clef (expr reduction) = - save hair, norm, reduced_il; - reduced_il#=interline#*reduction; - norm#:=2/3reduced_il#; - hair#:=1/6norm#; - define_pixels (hair,norm,reduced_il); - set_char_box (0, 5/2reduced_il#, 2 reduced_il#, 2 reduced_il#); - draw_block ((0,-d), (1/2reduced_il,h)); - draw_block ((1/2reduced_il+stafflinethickness,-d), - (1/2reduced_il+2stafflinethickness,h)); - +% `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; - xoff=1/2reduced_il+2hair; - penpos1(hair,-90); - z1l=(xoff+norm+hair,h); - penpos2(norm-hair,180); - z2l=(w,h/2); - penpos3(hair,90); - z3=(((w-xoff)/2)+xoff,2hair); - - penpos4(hair,0); - z4=(xoff+1/2norm+1/2hair,reduced_il-hair); - - penpos5(4hair,0); - z5=(xoff+5/4hair,0); - - penpos6(norm-hair,90); - z6=(xoff+3/4norm,0); - - penpos7(hair,-90); - z7r=(x1,-d); - - save t; t=0.833; - save p; path p; -% p = z5l..z4l{up}..z4r{down}..z3r{right}..tension t..z2r{up} -% ..z1r{left}..z1l{right}..z2l{down} -% ..z3l{left}..z5r{down}; - p = z5l..z4l{up}..z4r{down}..z3r{right}..tension t..z2r{up} - ..z1r{left}..z1l{right}..z2l{down} - ..z3l{left}..z6r..z5r{down}; - pickup pencircle scaled 1pt#; - filldraw p..(reverse p yscaled -1)..cycle; - penlabels (1,2,3,4,5,6); - % ugh, should be bulb, not flare? - draw_flare(z1l,180,90,hair,norm-1/4hair); - draw_flare(z7r,180,-90,hair,norm-1/4hair); - enddef; + 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); -fet_beginchar ("C clef", "alto", "altoclef") - if test = 1: - draw_staff (-2,2); + 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", "alto_change", "caltoclef") - if test = 1: - draw_staff (-2,2); - fi; + +fet_beginchar ("C clef", "C_change"); draw_c_clef (.8); fet_endchar; + % -% Inspired by Baerenreiter and Breitkopf -% -% FIXME: dims -% FIXME: right vertical tangent seems to be lower than the F-line -% FIXME: bulb curve smoothly into "long curve" on the inside +% New bulb routine: % +% Insert a brushed piece of the path, and draw the rest of the bulb +% separately. % -% [Wanske] says that the extreme x point should be exactly between -% the dots, but her picture shows that the extreme is ~ 0.2 ss lower - -def draw_bass_klef(expr exact_center, reduction) = - save reduced_il, left_tilt, left_thick; - reduced_il# = interline# * reduction; - left_tilt = 5; - define_pixels(reduced_il); - left_thick = .25 reduced_il; - - set_char_box( - - xpart exact_center+ .2 reduced_il#, - xpart exact_center + 2.7 reduced_il#, - - ypart exact_center + 2.5 reduced_il#, - ypart exact_center +reduced_il#); - x1r - x1l = left_thick; - z1l = (hround_pixels(xpart exact_center), - vround_pixels(ypart exact_center)); - - y2 = reduced_il; - - x3l - x1l = 2.1 reduced_il; - x2 = .5 [x1,x3]; - x3l - x3r = .48 reduced_il; - y3l = -0.05 interline; - x4 = x1l - stafflinethickness; - y4 = -2.2 reduced_il; - z5 = (x3l + 1/3 reduced_il, .5 reduced_il); - - penpos1(whatever, left_tilt); - penpos2(1.2 stafflinethickness, -90); - penpos3(whatever, 185); - penpos4(stafflinethickness, 135); - - draw_bulb(1, z1r, z1l, .45 reduced_il, 1.0); - - - fill z1r{up} .. z2r{right} .. tension 1.0 .. z3r{down} .. {curl 0} - simple_serif(z4r, z4l, 90) {curl 0} - .. z3l{up} .. tension 0.9 .. z2l{left} - .. z1l{dir (-90 + left_tilt)} -- cycle; - labels(2,4); - penlabels(1,2,3,4); - - pickup pencircle scaled (.35 reduced_il); - draw z5; - draw z5 yscaled -1; +% 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); + + labels (1', 2', 3', 4'); + + before := z3'{dir (turning_dir * 90)} + .. z4' + ..tension 1.1.. z1'; + 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 0.97.. 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_protude; + save dot_diam, bulb_y_offset, bulb_flare; + pair tip_protude; + + 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); -fet_beginchar("F clef ", "bass", "bassclef") - if test = 1: - draw_staff(-3,1); - fi; - draw_bass_klef((.5 interline#, 0), 1.0); + right_offset = 0.05 staff_space; + bulb_y_offset := 0.15 staff_space; + bulb_flare := 2.5 linethickness; +% tip_protude := (-linethickness, -.2 staff_space); + tip_protude := (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_protude; + + 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)", "bass_change", "cbassclef") - draw_bass_klef((.4 interline#, 0),0.8); + + +fet_beginchar ("F clef (reduced)", "F_change"); + draw_bass_clef ((0, 0), 0.8); fet_endchar; % % Inspired by Baerenreiter -% -% FIXME top should be thinner at z8, -% FIXME bulb should curve (see bass clef) -% FIXME start (inside) should be little thinner -% FIXME parametrise. % - +% % Beste lezers, kijk, % -% Een bolletje hebben we bij toeval allemaal wel eens getekend, maar begint u -% toch eenvoudig. Eerst een eenvoudig kruis of herstellingsteken +% 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 % -def draw_gclef (expr exact_center, reduction)= - save reduced_il, downstroke_dir, downstroke_angle, hair, center; +% -- 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 inner_start_angle, thinness, thinpen; - reduced_il# = interline# * reduction; - define_pixels(reduced_il); + save start_angle, inner_start_angle, thinness; + save upward_swoosh_angle, bot_angle; + save pat; + path pat; pair downstroke_dir, center; - center := (hround_pixels(xpart exact_center), - vround_pixels(ypart exact_center)); + reduced_ss# = staff_space# * reduction; + define_pixels (reduced_ss); - hair = .3 stafflinethickness; - thinness = 1.3 stafflinethickness; - downstroke_dir = (14, -75); - breapth_factor = 11/7; + thinness = 0.08 staff_space + 0.7 linethickness; + downstroke_dir = unitvector (14, -75); + downstroke_angle = angle downstroke_dir; + bot_angle = -180; % downstroke_angle - 87 + + upward_swoosh_angle = 132; + start_angle = -95; + + breapth_factor = 21.0 /14; inner_thick_end = 45; inner_start_angle = downstroke_angle - 43; - thickness = .4 reduced_il - hair; - - thinnib = thinness - hair; - thinpen = thinness; - set_char_box(-xpart exact_center + 1.1 * breapth_factor* reduced_il#, - xpart exact_center + .66 breapth_factor* reduced_il#, - -ypart exact_center + 3 * reduced_il#, - ypart exact_center + 5 * reduced_il#); - - pickup pencircle scaled hair; - downstroke_angle = angle downstroke_dir; + 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_il; - - top z2r = center + (0,reduced_il + stafflinethickness/2); - - x4 = xpart center - .1 reduced_il; - bot y4r = -(reduced_il + .5 stafflinethickness); + 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; - - z5r = (- breapth_factor, .37)* reduced_il + center; - penpos5(thickness, 135); + 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_il; + y6 = ypart center + 2 reduced_ss; + % penpos6 is computed later - z7l - z6 = whatever *(z5- z6) ; - y7l = 3.5 reduced_il; - z8r = .4 [z9r, z7r] + 1.5 stafflinethickness * dir 52; + z7l - z6 = whatever * (z5 - z6) ; + y7l = 3.5 reduced_ss; + penpos7 (thickness, upward_swoosh_angle); x9 = .7 [x10, x7r]; - top y9l = 5 reduced_il; + 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 = 1.2 thickness; + z10r - z10l = .7 thinnib * dir (downstroke_angle + 90) + + whatever * downstroke_dir; + z10 = .5 [z10l, z10r]; + z11 = center + whatever * downstroke_dir + (0 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); + + fill z2l{right} + .. z3l + .. z4l{left} + .. z5l{up} + .. z7l{up} + ..tension 1.2.. z9l + -- z8 + -- z9r % {dir (downstroke_angle + 0)} + ..tension 0.8.. z7r{down} + .. z5r{down} + .. z4r{right} + .. z3r + .. z2r{left} + ..tension .95.. z1r + -- simple_serif (z1r, z1l, 80) + -- z1l + ..tension 0.85.. cycle; + + pat := z10{down} + .. z6 + .. z11{dir (start_angle)}; + + penpos6 (thinnib, angle (direction 1 of pat) + 90); + + % two auxiliary points to simulate `draw' with `penstroke' + z10' = point 0.5 of pat; + penpos10' (thinnib, angle (direction 0.5 of pat) + 90); + z11' = point 1.5 of pat; + penpos11' (thinnib, angle (direction 1.5 of pat) + 90); + + penstroke z9e + .. z10e{down} + .. z10'e + .. z6e + .. z11'e + .. z11e{dir (-95)} + .. z12e{dir (bot_angle)}; + + fill new_bulb (z12r, bot_angle, z13r, z12l, bot_angle + 180, + 0.45 reduced_ss, 0.38 reduced_ss, + thinnib + .15 staff_space, 1, -1) + -- cycle; + + penlabels (range 1 thru 16); + penlabels (10', 11'); + + draw_staff (-1, 3, 0); +enddef; - y10 = 3. reduced_il; - y11 = -11/7 reduced_il; - y12 = ypart center - 18.5/7 reduced_il; - x12 = x11 - 5 /7 reduced_il; +fet_beginchar ("G clef", "G"); + draw_gclef (1.0); +fet_endchar; - z13 = z12 + .6 reduced_il*(-1,1); - (z10r - z10l) dotprod (unitvector downstroke_dir rotated 90) = - thinnib; +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; - center - z10= whatever * downstroke_dir; - center - z11 = whatever * downstroke_dir; - penpos1(thinnib, inner_start_angle); - penpos2(thickness, 90); - penpos3(thinnib, -90 + inner_thick_end); - penpos4(thinnib, -90); +fet_beginchar ("percussion clef (reduced)", "percussion_change"); + draw_percussion_clef (.8); +fet_endchar; - penpos7(thickness, 135); - penpos8(1.5 thinnib, - 70 + angle downstroke_dir); - penpos9(1.5 thickness, -80); - penpos10(whatever, downstroke_angle + 10); - penpos11(thinnib, downstroke_angle + 90); - penpos12(thinnib, -90); - penpos13(3 thinnib, 180); +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; - filldraw z2l{right} .. z3l.. z4l{left} .. z5l{up} .. z7l{up} - %.. z8l - .. z9l & z9l .. - {downstroke_dir}z10l --- z11l -- z11r --- z10r{- downstroke_dir} - .. tension .8 - .. z9r & z9r - %.. z8r - .. z7r{down} .. z5r{down} .. z4r{right} - .. z3r .. z2r{left} .. - tension .95 .. - z1r -- z1l - .. tension 0.85 ..cycle; +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; - filldraw simple_serif(z1r, z1l, 90) -- cycle; - filldraw z12r{left} .. z13r{up} -- z13l{down} .. z12l{right} .. cycle; +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; + penpos 11 (.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; - draw_bulb(-1, z13l, lft z13r, 6/14 reduced_il, 1.0); - pickup pencircle scaled (thinpen); - draw z10 --- z11 .. z12{left}; +def draw_tab_clef (expr reduction) = + save reduced_ss, letterheight, penw, penh; - penlabels(range 1 thru 15); + 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("G clef", "violin", "violinclef") - if test = 1: - draw_staff(-1,3); - fi; - draw_gclef((1.7 interline#,0), 1.0); +fet_beginchar ("tab clef", "tab"); + draw_tab_clef (1.0); fet_endchar; -fet_beginchar("G clef", "violin_change", "cviolinclef") - draw_gclef((1.3 interline#,0), .8); + + +fet_beginchar ("tab clef (reduced)", "tab_change"); + draw_tab_clef (.8); fet_endchar; -fet_endgroup("clefs"); +fet_endgroup ("clefs");