% 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--2002 Han-Wen Nienhuys , % Jan Nieuwenhuizen , % Juergen Reuter fet_begingroup("clefs"); % % [Ross] says that clefs take 1 staff_space space on the left and right % % this is now handled in the lilypond spacing engine. % def set_horizontal_spacing = save left_space ,right_space; left_space# = 0; right_space# = 0; enddef; % [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; reduced_ss#=staff_space#*reduction; norm#:=2/3reduced_ss#; hair#:=1/6norm#; set_horizontal_spacing; right_edge# = 15/4norm#+2hair#; set_char_box (left_space#, right_edge# + right_space#, 2 reduced_ss#, 2 reduced_ss#); define_pixels (hair,norm,reduced_ss, right_edge); draw_block ((0,-d), (3/4norm+1/2hair,h)); draw_block ((3/4norm+2hair,-d), (3/4norm+7/2hair,h)); save xoff; xoff=3/4norm+7/2hair; penpos1(hair,-90); z1l=(xoff+norm+hair,h); penpos2(norm-3/2hair,180); z2l=(right_edge,h/2); penpos3(hair,90); z3=(((right_edge -xoff)/2)+xoff,2hair); penpos4(hair,0); z4=(xoff+1/2norm+1/2hair,reduced_ss-hair); penpos5(4hair,0); z5=(xoff+5/4hair,0); penpos6(norm-hair,90); z6=(xoff+3/4norm,0); save t; t=0.833; save p; path p; p = z5l..z4l{up}..z4r{down}..z3r{right}..tension t..z2r{up} ..tension t.. flare_path(z1l,180,90,hair,norm-1/2hair, -1) ..tension t..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? enddef; fet_beginchar ("C clef", "C", "altoclef") if test = 1: draw_staff (-2,2, 0.0); fi; draw_c_clef (1.0); fet_endchar; fet_beginchar ("C clef", "C_change", "caltoclef") if test = 1: draw_staff (-2,2, 0.0); fi; draw_c_clef (.8); fet_endchar; % % New bulb routine: % % Insert a brushed piece of the path, and draw a bulb separately % % The bulb is circular form. Neat merging of the bulb and brushed path % is done by playing with tension. % % def new_bulb (expr outer_tangent_point, big_radius, bulb_radius, flare, direction, turning_dir) = begingroup; save p, oldpen; path p; pen oldpen; save center; pair center; clearxy; center = outer_tangent_point +big_radius* dir(0) + big_radius* dir(-turning_dir * 90) - bulb_radius * dir (- turning_dir * 90); z1 = center + bulb_radius * dir (turning_dir * 180); z2 = center + bulb_radius * dir (turning_dir * 270); z9 = center + bulb_radius * dir (0); z10 = center + bulb_radius * dir (turning_dir *90); z3 = outer_tangent_point + flare * dir (0); labels(1,2,3,9,10); % tension is needed to open up the space between return path and the % ball. fill % draw z9 .. z10 .. tension 1.1 .. z1 .. z2 .. cycle; p:= outer_tangent_point{dir (-turning_dir* 90)} .. tension 0.97 .. {dir (turning_dir * 90)}z9 -- z3 ; if direction = 1: p else: reverse p fi endgroup enddef; % % % There is some variation is shape of bass clefs. Important points % % * the size of the swoosh tip: in some clefs, it 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 % left bulb boundary, and the Y part ends on the 2nd staffline exactly. % This is what we do. % % * The size of the bulb. The diameter of the bulb is the width of the % open space. % % * The y-alignment of the bulb. The center of the bulb can be on or slightly % above the staff line. % % * The position of the dots. They can be symmetrical around the % staffline, centered in the staff space. The Baerenreiter SCS has the % bottom dot raised by approx. 0.1 ss. % % * 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, left_tilt, left_thick, swoosh_width; save right_thickness, tip_protude; pair tip_protude; save dot_diam; reduced_ss# = staff_space# * reduction; 2.2 dot_diam = round reduction* (staff_space - stafflinethickness); right_thickness = 0.48; left_thick = .25; swoosh_width# = 2.1 reduced_ss#; % tip_protude := (-stafflinethickness, -.2 staff_space); tip_protude := (0, 0); set_horizontal_spacing; bulb_y_offset := 0.15 staff_space; overshoot_top := 0.0; %% set_char_box(left_space# + - xpart exact_center, right_space# + xpart exact_center + swoosh_width# + 7/12 reduced_ss#, - ypart exact_center + 2.5 reduced_ss#, ypart exact_center +reduced_ss#); define_pixels(swoosh_width); define_whole_pixels(reduced_ss); left_tilt = 5; y1 = bulb_y_offset; x1 = 0; x2 = .5 [x1,x3]; x2l = x2r = x2; y2l := vround_pixels (reduced_ss# + 0.5 stafflinethickness#); y2l - y2r = (1.0 + overshoot_top) * stafflinethickness; y2 = .5 [y2l, y2r]; x3l - x1 = swoosh_width; x3l - x3r = right_thickness * reduced_ss; % try to correct: the top dot seems farther away if y3l = 0. y3l = 0.05 staff_space; z4 = - (0, 2.0 reduced_ss) + tip_protude; z5 = (x3l + 1/3 reduced_ss, .5 reduced_ss); penpos3(whatever, 185); penpos4(stafflinethickness, 135); pickup pencircle scaled 1; % draw fill new_bulb (z1, 0.45 reduced_ss, 0.4 reduced_ss, 2.5 stafflinethickness, 1, 1) {dir (90)} .. z2r{right} .. tension 1.0 .. z3r{down} .. {curl 0} simple_serif(z4r, z4l, 90) {curl 0} .. z3l{up} .. tension 0.9 .. z2l{left} .. cycle ; labels(2,4); labels(range 1 thru 12); penlabels(2,3,4); pickup pencircle scaled dot_diam; drawdot z5; drawdot z5 yscaled -1; enddef; fet_beginchar("F clef ", "F", "bassclef") if test = 1: draw_staff(-3,1, 0.0); fi; draw_bass_clef((0, 0), 1.0); fet_endchar; fet_beginchar("F clef (reduced)", "F_change", "cbassclef") 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 exact_center, reduction)= save reduced_ss, downstroke_dir, downstroke_angle, center; save breapth_factor, inner_thick_end, thinness, thickness, thinnib; save inner_start_angle, thinness; reduced_ss# = staff_space# * reduction; define_pixels(reduced_ss); pair downstroke_dir, center; center := (hround_pixels(xpart exact_center), vround_pixels(ypart exact_center)); thinness = 1.4 stafflinethickness; downstroke_dir = unitvector (14, -75); downstroke_angle = angle downstroke_dir; breapth_factor = 21.0 /14; inner_thick_end = 45; inner_start_angle = downstroke_angle - 43; thickness = .4 reduced_ss; thinnib = thinness; set_horizontal_spacing; set_char_box( left_space# + -xpart exact_center + 1.0 * breapth_factor* reduced_ss#, right_space# + xpart exact_center + .66 breapth_factor* reduced_ss#, -ypart exact_center + 2.6 * reduced_ss#, ypart exact_center + 5 * reduced_ss#); save upward_swoosh_angle; upward_swoosh_angle =130 ; penpos7(thickness, upward_swoosh_angle); penpos5(thickness, upward_swoosh_angle); z1 = center + whatever * dir (inner_start_angle); x1 = xpart center -.28 reduced_ss; top z2r = center + (0,reduced_ss + stafflinethickness/2); x4 = xpart center - .1 reduced_ss; bot y4r = -(reduced_ss + .5 stafflinethickness); z3 = (z4 - center) rotated inner_thick_end + center; x5r = - breapth_factor* reduced_ss + xpart center; y5r = .37 reduced_ss + ypart center; z6 = center + whatever * downstroke_dir; y6 = ypart center + 2 reduced_ss; z7l - z6 = whatever * (z5 - z6) ; y7l = 3.5 reduced_ss; x9 = .7 [x10, x7r]; top y9l = 5 reduced_ss; y11 = ypart center - 47/28 reduced_ss; y12 = ypart center - 71/28 reduced_ss; y13 = .48 [y12,y4r]; x11 - x13r = 1.5 reduced_ss + 0.5 thinnib; 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 + ( .05 reduced_ss, 0); penpos1(thinnib, inner_start_angle); penpos2(thickness, 90); penpos3(thinnib, -90 + inner_thick_end); penpos4(thinnib, -90); penpos9(1.45 thickness, -70); save lipje; pair lipje; lipje= .5 [z9l, z9r] + .25 ((z9r- z9l) rotated -90); penpos13(2 thinnib, 180); pickup pencircle scaled 1; debugfill z2l{right} .. z3l .. z4l{left} .. z5l{up} .. z7l{up} %.. z8l .. tension 1.2 .. z9l -- lipje --z9r % {dir (downstroke_angle+ 0)} .. tension 0.8 %.. z8r .. z7r{down} .. z5r{down} .. z4r{right} .. z3r .. z2r{left} .. tension .95 .. z1r -- simple_serif(z1r, z1l, 80) -- z1l .. tension 0.85 ..cycle; save p, staffline_time, staff_line_path, down_staff_line_intersection; path p, staff_line_path; pair down_staff_line_intersection; p := z4{left} .. z5{up} .. z7{up} ; staff_line_path := (-reduced_ss, 2 reduced_ss) .. (2 reduced_ss,2 reduced_ss); draw p; % we don't do this with a path: variations in thickness % are very easily made and look very ugh. pickup pencircle scaled thinnib; save bot_angle; bot_angle = -180; % downstroke_angle- 87; penpos12(thinnib, bot_angle + 90); p := z9 .. z10{down} .. z6 .. (.52 [z4, z3]) .. z11{down} .. z12{dir(bot_angle)} .. z13{up} ; save down_intersection_t; down_intersection_t := xpart (p intersectiontimes staff_line_path) ; down_staff_line_intersection = point down_intersection_t of p; z14 = down_staff_line_intersection; penpos14(thinnib, angle (direction down_intersection_t of p) + 90); save start_angle; start_angle=angle (direction xpart (p intersectiontimes z11) of p); penpos11 (thinnib, start_angle+ 90); save loop_end_dir; pair loop_end_dir; loop_end_dir = direction (xpart (p intersectiontimes staff_line_path)) of p; draw p; penpos6(thinnib, angle (loop_end_dir) + 90); pickup pencircle scaled 1; debugfill z9l .. {down}z10l .. z14l{loop_end_dir} -- z14r{-loop_end_dir} .. z10r{up} .. tension .98 .. z9r -- cycle; pickup pencircle scaled 1; debugfill z11r{dir(start_angle)} .. z12r{dir(bot_angle)} ..new_bulb (z13r, 0.45 reduced_ss, 0.38 reduced_ss, 3 stafflinethickness, 1, -1) {down} % .. tension 0.98 .. z12l{-dir (bot_angle)} .. z11l{-dir(start_angle)} .. cycle; penlabels(range 1 thru 16); enddef; fet_beginchar("G clef", "G", "trebleclef") if test = 1: draw_staff(-1,3, 0.0); fi; draw_gclef((1.7 staff_space#,0), 1.0); fet_endchar; fet_beginchar("G clef", "G_change", "ctrebleclef") draw_gclef((1.3 staff_space#,0), .8); fet_endchar; %%%% % PERCUSSION % % def draw_percussion_clef(expr reduction) = save reduced_ss; reduced_ss# = staff_space# * reduction; define_pixels(reduced_ss); set_char_box(-.67reduced_ss#,2.0reduced_ss#,reduced_ss#,reduced_ss#); razt := 0.45reduced_ss; draw_block((-b,-d),(-b+razt,h)); draw_block((w-razt,-d),(w,h)); enddef; fet_beginchar("percussion clef", "percussion", "percussionclef") draw_percussion_clef(1.0); fet_endchar; fet_beginchar("percussion clef (reduced)", "percussion_change", "cpercussionclef") draw_percussion_clef(.8); fet_endchar; def draw_tab_T(expr pos, siz, slant) = begingroup; clearxy; pair vx,vy; vx=(xpart siz) * dir 0; vy=(ypart siz) * dir 90; penpos1(.75penh, 100); z1=z2+(1/6*vx-.15*vy); penpos2(.9penw, 0); z2l = pos+.75vy; penpos3(penh,-100); z3l = pos+.4vx+vy; penpos4(penh,-90); z4=-.1vy+.5[z3,z5]; penpos5(.8penh,-30); x5r=xpart (pos+siz); y5l=ypart (pos+siz); penpos10(penw,170); z10=pos+.55vx+.85vy; penpos11(.75[penh,penw],170); z11=z10-.5vy+.025vx; penpos12(penh,100); z12l=(xpart .5[z13,z11],ypart (pos-.025*siz)); penpos13(.75penh,60); z13=pos +.2vx+.15vy; % penlabels (1,2,3,4,5,10,11,12,13); soft_penstroke (z1e..tension 1.1 ..z2e ..z3e{right}..tension 1.5 ..z4e ..z5e ) slanted slant shifted (slant*-ypart pos,0); soft_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; clearxy; pair vx,vy; vx=(xpart siz) * dir 0; vy=(ypart siz) * dir 90; penpos1(.75penh,-110); z1r=pos+.07vy; 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+.5vx+.975vy; 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(.75penh,-70); z8r=(xpart(pos+siz),y7r+.075ypart(siz)); penpos10(penh,-105); z10=.2[z3,z4]; penpos11(.9penh,-90); z11=.4[z10,z6]-0.05vy; penpos12(.75penh,-75); z12=.3[z11,z6]+0.02vy; % penlabels(1,2,3,4,5,6,7,8,10,11,12); soft_penstroke (z1e {(z1r-z1l) rotated 90} ..z2e ..z3e ..z4e ) slanted slant shifted (slant*-ypart pos,0); soft_penstroke (z5e ..z6e ..z7e ..z8e {(z8r-z8l) rotated 90} ) slanted slant shifted (slant*-ypart pos,0); soft_penstroke (z10e ..z11e ..z12e ) slanted slant shifted (slant*-ypart pos,0); endgroup; enddef; def draw_tab_B(expr pos, siz, slant) = begingroup; clearxy; pair vx,vy; vx=(xpart siz) * dir 0; vy=(ypart siz) * dir 90; penpos1(.75penh, 100); z1=z2+(.15*vx-.1*vy); penpos2(.9penw, 0); z2l = pos+.75vy; penpos3(penh,-100); z3l = pos+.4vx+1.05vy; penpos4(.8[penh,penw],-180); z4=(xpart(pos+.75siz),.5[y3,y5]); penpos5(.8penh,90); z5=(.5[x10,x4],ypart (pos+.55siz)); penpos6(.8penh,270); z6=z5; penpos7(penw,180); z7l=(xpart(pos+siz),.5[y6,y8]); penpos8(.8penh,45); z8=.5[z12l,z11l]+.15vx-.05vy; penpos10(.75[penh,penw],170); z10=pos+.375vx+.95vy; penpos11(.8[penh,penw],150); z11=z10-.5vy+.04vx; penpos12(penh,100); z12l=(xpart .5[z13,z11],ypart pos); penpos13(.75penh,60); z13=pos+.1vx+.15vy; % penlabels (1,2,3,4,5,6,7,8,10,11,12,13); soft_penstroke (z1e..tension 1.1 ..z2e ..z3e ..z4e ..z5e{left} ) slanted slant shifted (slant*-ypart pos,0); soft_penstroke (z6e{right} ..z7e ..z8e{(z8r-z8l) rotated 90} ) slanted slant shifted (slant*-ypart pos,0); soft_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,vx,vy,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#); %draw_staff (-3,2, 0.5); penw = .45reduced_ss; penh = .2reduced_ss; draw_tab_T((-b+.15reduced_ss,h-letterheight), (2.1*reduced_ss,letterheight),0.2); draw_tab_A((-b-.05reduced_ss,-.5letterheight +.15reduced_ss), (2.2*reduced_ss,letterheight),0.4); draw_tab_B((-b+.025reduced_ss,-d), (2.1*reduced_ss,letterheight),0.25); enddef; fet_beginchar("tab clef", "tab", "tabclef") draw_tab_clef(1.0); fet_endchar; fet_beginchar("tab clef (reduced)", "tab_change", "ctabclef") draw_tab_clef(.8); fet_endchar; fet_endgroup("clefs");