%
% source file of the Feta (Font-En-Tja) music font
%
-% (c) 1997, 1998 Han-Wen Nienhuys <hanwen@stack.nl>
+% (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
%
% a square pen). [Wanske] does not mention this, so we'll just ignore
% this fact
%
-fet_beginchar("Sharp" , "1", "sharp");
- set_char_box(0, 1.1 staff_space#, 1.5 staff_space#,
- 1.5 staff_space#);
+def draw_meta_sharp (expr width) =
save interbeam, interstem, beamheight, beamwidth,
- stemwidth;
+ stemwidth, beamslope;
+ save spanwidth, spanheight;
+
+ save center;
+ pair center;
interbeam := 1.05 staff_space;
- interstem := 7/16 ;
- beamheight := 4 stafflinethickness;
- beamwidth := w;
- stemwidth := 1.3 stafflinethickness;
- roundness := 2blot_diameter;
- pair center;
+ beamheight := 0.3 staff_space + stafflinethickness;
+ beamwidth := width;
+ stemwidth := 1.0 stafflinethickness + .05 staff_space;
+ roundness := 2 blot_diameter;
+
center := (.5 w, 0);
roundness + 2 spanwidth = beamwidth;
roundness + 2 spanheight = beamheight;
- 2 horizontal_protrusion + interstem * beamwidth + stemwidth
- = beamwidth;
-
-% wanske: whole beamheight; or ca 18 degrees
-% z2 - z1 = (beamwidth - roundness, beamheight/2);
z2 - z1 = (beamwidth - roundness, beamheight);
z1 + z2 = 2*center;
beamslope = (y2-y1)/(x2-x1);
pair hspan, vspan;
hspan = (spanwidth, beamslope * spanwidth);
vspan = (0, spanheight);
-
path beam;
beam := (hspan + vspan -- -hspan
pickup pencircle scaled roundness;
filldraw (beam shifted (0,-interbeam/2));
- filldraw (beam shifted (0,interbeam/2));
pickup pencircle scaled stemwidth;
x3 = x4 = xpart center;
- bot y3 = -1.5 staff_space + ypart center;
- top y4 = 1.5 staff_space + ypart center;
-
- path stem;
- stem := z3 .. z4;
- numeric xs;
- xs := interstem* beamwidth / 2;
- draw stem shifted (- xs, - xs* beamslope);
- draw stem shifted (xs , xs *beamslope);
+
+
+ enddef;
+
+fet_beginchar("Sharp" , "2", "sharp");
+ set_char_box(0, 1.1 staff_space#, 1.5 staff_space#,
+ 1.5 staff_space#);
+ draw_meta_sharp (w);
+
+ save stemx;
+ stemx := 7 / 32 * w;
+
+ (bot y3) + - stemx * beamslope = -1.5 staff_space + ypart center;
+ top y4 + stemx * beamslope = 1.5 staff_space + ypart center;
+
labels(1,2,3,4);
+
+ draw_gridline (z3-(stemx,stemx* beamslope),z4-(stemx, stemx*beamslope), stemwidth);
+ addto currentpicture also currentpicture rotated 180 shifted (w,0);
+
fet_endchar;
-fet_beginchar( "Natural", "0", "natural")
- set_char_box(0, 8/12 staff_space#, 1.5 staff_space#, 1.5 staff_space#);
+fet_beginchar("1/2 Sharp" , "1", "semisharp");
+ set_char_box(0, 0.7 staff_space#, 1.5 staff_space#,
+ 1.5 staff_space#);
+
+ draw_meta_sharp (w);
+ stemx := 7 / 32 * w;
+
+ (bot y3) + - stemx * beamslope = -1.5 staff_space + ypart center;
+ top y4 + stemx * beamslope = 1.5 staff_space + ypart center;
+
+ labels(1,2,3,4);
+
+ draw_gridline (z3, z4, stemwidth);
+ addto currentpicture also currentpicture rotated 180 shifted (w,0);
+
+ fet_endchar;
+
+
+fet_beginchar("3/4 Sharp" , "3", "threequartersharp");
+ set_char_box(0, 1.6 staff_space#, 1.5 staff_space#,
+ 1.5 staff_space#);
+
+ draw_meta_sharp (w);
+ stemx := 9 / 32 * w;
+
+ (bot y3) + - stemx * beamslope = -1.5 staff_space + ypart center;
+ top y4 + stemx * beamslope = 1.5 staff_space + ypart center;
+
+ labels(1,2,3,4);
+
+ draw_gridline (z3-(stemx,stemx* beamslope),z4-(stemx, stemx*beamslope), stemwidth);
+ draw_gridline (z3, z4, stemwidth);
+ addto currentpicture also currentpicture rotated 180 shifted (w,0);
+
+ fet_endchar;
+
+%
+% The stems of the natural are brushed (at least, in Barenreiter SCS )
+%
+%
+fet_beginchar( "Natural", "0", "natural")
+ save height, xcenter;
save interbeam, interstem, beamheight, beamwidth,
- stemwidth;
+ stemwidth;
+ save top_stem_thick;
+
+ beamheight# = 0.35 staff_space# + .5 stafflinethickness#;
+ height# = 1.5 staff_space#;
+ set_char_box(0, 2/3 staff_space#, height#, height#);
+
+ define_pixels(height);
+ define_blacker_pixels(beamheight);
+
+ top_stem_thick = round (1 stafflinethickness + .09staff_space ) + 0.4;
+ stemwidth = 0.08 staff_space + .5 stafflinethickness;
+
- beamheight = 4.5 stafflinethickness;
interstem + stemwidth = w;
- stemwidth = 1.3 stafflinethickness;
z2 -z1 = (interstem, slope * interstem);
xpart .5 [z2,z1] = xcenter ;
pickup penrazor scaled beamheight rotated 90;
top y2 = staff_space - 3/2 stafflinethickness ;
- slope = stafflinethickness / interstem;
+ slope = stafflinethickness / interstem;
draw z1 .. z2;
draw (xpart z1, -y2) .. (xpart z2, -y1);
beamtop = top y2;
-
+
pickup pencircle scaled stemwidth;
- xpart z3 = xpart z1;
- xpart z4 = xpart z2;
- top y3 = 1.5 staff_space;
+ x3 := round (xpart z1);
+ x4 := round (xpart z2);
+
+ penpos3(top_stem_thick, 0);
+ penpos5(top_stem_thick, 0);
+ penpos4(stemwidth, 0);
+ penpos6(stemwidth, 0);
+
+ y3 = height;
top y4 = beamtop;
- draw (xpart z1, -y4) .. z3;
- draw (xpart z2, -y3) .. z4;
+ x5 = x4;
+ x6 = x3;
+ bot y6 = -beamtop;
+ y5 = - height;
- labels(1,2,3,4);
+ fill simple_serif (z3l, z3r, -30) -- simple_serif(z6r, z6l, -90) -- cycle;
+ fill simple_serif (z5l, z5r, 30) -- simple_serif(z4r, z4l, 90) -- cycle;
+
+
+
+ penlabels(3,4,5,6);
+
+ labels(1,2);
fet_endchar;
%
% TODO: remove crook_fatness
+% TODO: document, simplify!
+%
def draw_meta_flat(expr xcenter, w, crook_fatness) =
clearxy;
save crook_thinness;
- save top_stem_thick, bottom_stem_thick, hair;
+ save bottom_overshoot;
+ save top_stem_thick, bottom_stem_thick, hair, smaller_hole;
+ save top_crook_thinness;
+ save zwiep;
save center;
pair center;
+ save clearing;
center = (xcenter, 0);
- crook_thinness = 1.25 stafflinethickness;
- top_stem_thick = 2 stafflinethickness;
- bottom_stem_thick = 1.2 stafflinethickness;
+% the shouldn't reach to the top staff line.
+%% TODO: should take from height.
+ clearing = 1.2 stafflinethickness;
+
+%
+% TODO: parameterize this
+%
+ if w >= 0.75 staff_space:
+ smaller_hole = 0.35 stafflinethickness;
+ else:
+ smaller_hole = 0.0 stafflinethickness;
+ fi
+ crook_thinness = .7 stafflinethickness + .06 staff_space;
+ top_crook_thinness = 1 stafflinethickness + .065 staff_space ;
+
+ % this is a somewhat heuristic. We should probably make it
+ % straight for low resolution (300 dpi and less).
+ top_stem_thick = round (0.1 staff_space + 1.2 stafflinethickness) + 0.74;
+ bottom_overshoot = stafflinethickness;
+ bottom_stem_thick = 0.06 staff_space + 0.6 stafflinethickness;
- z1 = (0, 2 staff_space) + center;
- z2 = (0, - 1/2 staff_space)+ center;
+ z1 = (0, 2 staff_space) + center - (0, stafflinethickness/2
+ + clearing);
+ z2 = (0, - 1/2 staff_space - stafflinethickness/2 )+ center;
penpos1(top_stem_thick, 0);
penpos2(bottom_stem_thick, 0);
fill simple_serif(z1r, z1l, 30) -- z2l -- z2r -- cycle;
- y3l = (staff_space - stafflinethickness)/2 + ypart center;
+ y3l = (staff_space - stafflinethickness) / 2 + ypart center;
z3l = whatever [z2r,z1r];
- z3r = .26 [z2r, z1r];
+ z3r = .3 [z2r, z1r] + (smaller_hole, 0);
+ z10 = whatever [z2r, z1r] + (smaller_hole , 0);
+ z11 = center + (bottom_overshoot/3,
+ -staff_space/2 - stafflinethickness/2) - (0,bottom_overshoot);
- z4 = (3/8 staff_space, staff_space/2) + center;
penpos4(whatever, 53);
- y4l - y4r = 2 crook_thinness ;
-% y4l - y4r = 6/20[crook_thinness, crook_fatness] ;
- y5r = 1/4 staff_space + ypart center;
- x5l = w + xpart center;
- penpos5(crook_fatness, -175);
+ y4l - y4r = top_crook_thinness ;
- z8 = (0, - staff_space/2 - stafflinethickness/2) + center;
-
- z9 = (x5,0);
+ y5r = .15 staff_space + ypart center;
+ x5l = w + xpart center;
+ y4 = ypart center + staff_space/2;
+ x4r = .45 [x5r, x3r];
- save ne_angle;
- ne_angle = angle(z9 - z8);
+ penpos5(crook_fatness, -175);
- z7 = 8/33 [z8,z9];
- z6l = 18/33 [z8,z9] + .5 crook_thinness *dir(ne_angle -90);
-
- penpos7(crook_thinness, ne_angle + 90);
+ save bot_crook_dir ;
+ pair bot_crook_dir ;
+ bot_crook_dir = unitvector ((x5l,0) - z11);
+ z8 = z11 + whatever * bot_crook_dir;
+ y8 = - staff_space /2 +0.0* stafflinethickness;
- z6r = .3 (z9-z8) + z7r;
+ z7 = z8 + whatever * bot_crook_dir + crook_thinness * (bot_crook_dir rotated 90);
-% penpos7(crook_thinness, angle(dir(z8-center) -180);
+ x7 = .1 [x3r, x8];
- penpos8(whatever, ne_angle + 90);
- x8r = xpart center - bottom_stem_thick/2;
penlabels(range 0 thru 10);
- z10 = (bottom_stem_thick/2, -1/5 staff_space) + center;
+ y10 = -1/10 staff_space;
+% draw_staff (-2, 2, 0.5);
+% draw_staff (-2, 2, 0.0);
+
+ unfill z3r{z3r-z10} .. z4r{right} .. z5r{down}
+ .. z7{- bot_crook_dir}
+ & z7 % .. tension 1.3
+ .. z10{z3r-z10}
- unfill z3r{up} .. z4r{right} .. tension .9
- .. z6r ---
- z7r{left}
- .. z10 {up} -- cycle;
- fill z8r{down}
- .. tension 0.8 ..z8l{(z9-z8)}
- .. z7l
- .. z6l
+ -- cycle;
+ fill z2l{down}
+
+ .. z11{right}
+ .. z8{bot_crook_dir}
.. z5l{up}
.. z4l{left} .. z3l -- cycle;
%
% unfortunately, 600dpi is not enough to show the brush of the stem.
%
-fet_beginchar("Flat", "-1", "flat")
- set_char_box(1.2 stafflinethickness#, .8 staff_space#, .5 staff_space#, 2 staff_space#);
- draw_meta_flat(0, w, 1/3 staff_space);
+fet_beginchar("Flat", "-2", "flat")
+ set_char_box(1.2 stafflinethickness#, .8 staff_space#, 0.6 staff_space#, 1.9 staff_space#);
+ draw_meta_flat(0, w, 0.31 staff_space);
+ fet_endchar;
+
+fet_beginchar("Semi flat", "-1", "semiflat")
+ set_char_box(1.2 stafflinethickness#, .8 staff_space#, 0.6 staff_space#, 1.9 staff_space#);
+ draw_meta_flat(0, w, 0.31 staff_space);
+ currentpicture := currentpicture xscaled -1 shifted (w - b, 0);
fet_endchar;
-fet_beginchar("Double flat", "-2", "flatflat")
+fet_beginchar("Double Flat", "-4", "flatflat")
+ save left_wid, overlap, right_wid;
+ left_wid = .7;
+ right_wid = .8;
+ overlap = .05;
+ set_char_box(1.2 stafflinethickness#, (left_wid + right_wid -overlap) *staff_space#, .6 staff_space#, 1.9 staff_space#);
+ draw_meta_flat(0, left_wid* staff_space, 1/3 staff_space);
+ draw_meta_flat(round ((left_wid - overlap) *staff_space),
+ right_wid *staff_space, 0.33 staff_space);
+ fet_endchar;
+
+fet_beginchar("3/4 Flat", "-3", "threeqflat")
save left_wid, overlap, right_wid;
left_wid = .7;
right_wid = .8;
overlap = .05;
- set_char_box(1.2 stafflinethickness#, (left_wid + right_wid -overlap) *staff_space#, .5 staff_space#, 2 staff_space#);
+ set_char_box(1.2 stafflinethickness#, (left_wid + right_wid -overlap) *staff_space#, .6 staff_space#, 1.9 staff_space#);
draw_meta_flat(0, left_wid* staff_space, 1/3 staff_space);
- draw_meta_flat((left_wid - overlap) *staff_space,
- right_wid *staff_space, 1/3 staff_space);
+ draw_meta_flat(round ((left_wid - overlap) *staff_space),
+ right_wid *staff_space, 0.33 staff_space);
+
+ %% maybe we should clip part of the stems?
+ %% or make the 1st flat smaller?
+ %% or reverse it?
+ pickup pencircle scaled 2 stafflinethickness;
+ z12 = ( - .25 w - b, .55 staff_space);
+ z13 = ( .75 w , 1.45 staff_space);
+ draw z12 -- z13;
fet_endchar;
-fet_beginchar("Double sharp", "2", "sharpsharp")
+
+fet_beginchar("Double Sharp", "4", "sharpsharp")
set_char_box(0, staff_space#, .5 staff_space#, .5 staff_space#);
save klaverblad, klaversteel;
klaversteel = 1/15 staff_space;
- klaverblad = .35 staff_space;
+ klaverblad = .40 staff_space - .5 stafflinethickness;
z1 = (klaversteel, 0);
z2 = (w/2 - klaverblad / 10, h - klaverblad);
z5 = z1 reflectedabout((0,0), (1,1));
labels(1,2,3,4,5);
- pickup pencircle scaled 1/20 staff_space;
+ pickup pencircle scaled blot_diameter;
filldraw
z1{dir 45} .. {right}z2 -- z3 --
z4{down} .. {dir 225}z5 .. cycle;
z3 = (leftindent,-d);
penpos1(stafflinethickness, 35);
- penpos2(2 stafflinethickness, 0);
+ penpos2(.1 staff_space + stafflinethickness, 0);
penpos3(stafflinethickness, -35);
penlabels(1,2,3);
.. simple_serif(z1r, z1l, 90) .. z2l{down} -- cycle;
enddef;
-fet_beginchar("Right paranthesis", ")", "rightparen")
+fet_beginchar("Right Parenthesis", "rightparen", "rightparen")
draw_paren;
fet_endchar;
-fet_beginchar("Left paranthesis", "(", "leftparen")
+fet_beginchar("Left Parenthesis", "leftparen", "leftparen")
draw_paren;
currentpicture := currentpicture xscaled -1;
set_char_box(charwd, charbp, chardp, charht);
fet_endchar;
-
fet_endgroup("accidentals");