2 % Accidentals from various sources, notably
4 % Baerenreiter edition of Schuberts `Auf dem Strom' (sharp, natural)
5 % F Hofmeister edition of Muellers `Etueden fuer Horn' (double sharp, flat)
11 %\tracingequations:= tracingonline := 1;
13 fet_begingroup("accidentals");
15 fet_beginchar("Sharp" , "1", "sharp");
16 set_char_box(0, 1.1 interline#, 1.5 interline#,
19 save interbeam, interstem, beamheight, beamwidth,
22 interbeam := 1.05 interline;
24 beamheight := 4 stafflinethickness;
26 stemwidth := 1.3 stafflinethickness;
27 roundness := blot_diameter;
31 roundness + 2 spanwidth = beamwidth;
32 roundness + 2 spanheight = beamheight;
34 2 horizontal_protrusion + interstem * beamwidth + stemwidth
37 % wanske: whole beamheight; or ca 18 degrees
38 % z2 - z1 = (beamwidth - roundness, beamheight/2);
39 z2 - z1 = (beamwidth - roundness, beamheight);
41 beamslope = (y2-y1)/(x2-x1);
44 hspan = (spanwidth, beamslope * spanwidth);
45 vspan = (0, spanheight);
49 beam := (hspan + vspan -- -hspan
50 + vspan -- -hspan -vspan -- hspan - vspan -- cycle )
53 draw_rounded_path((beam shifted (0,-interbeam/2)), roundness);
54 draw_rounded_path((beam shifted (0,interbeam/2)), roundness);
56 pickup pencircle scaled stemwidth;
57 x3 = x4 = xpart center;
58 bot y3 = -1.5 interline + ypart center;
59 top y4 = 1.5 interline + ypart center;
64 xs := interstem* beamwidth / 2;
65 draw stem shifted (- xs, - xs* beamslope);
66 draw stem shifted (xs , xs *beamslope);
70 fet_beginchar( "Natural", "0", "natural")
71 set_char_box(0, 8/12 interline#, 1.5 interline#, 1.5 interline#);
73 save interbeam, interstem, beamheight, beamwidth,
76 beamheight = 4.5 stafflinethickness;
77 interstem + stemwidth = w;
78 stemwidth = 1.3 stafflinethickness;
80 z2 -z1 = (interstem, slope * interstem);
81 xpart .5 [z2,z1] = xcenter ;
85 pickup penrazor scaled beamheight rotated 90;
86 top y2 = interline - 3/2 stafflinethickness ;
87 slope = stafflinethickness / interstem;
90 draw (xpart z1, -y2) .. (xpart z2, -y1);
93 pickup pencircle scaled stemwidth;
96 top y3 = 1.5 interline;
99 draw (xpart z1, -y4) .. z3;
100 draw (xpart z2, -y3) .. z4;
107 % Dedicated to my mom. (3/10/97)
109 % Mamma, ik hou van je; kom je alsjeblieft terug?
113 % TODO: remove crook_fatness
114 def draw_meta_flat(expr xcenter, w, crook_fatness) =
117 save top_stem_thick, bottom_stem_thick, hair;
120 center = (xcenter, 0);
122 crook_thinness = 1.25 stafflinethickness;
123 top_stem_thick = 2 stafflinethickness;
124 bottom_stem_thick = 1.2 stafflinethickness;
127 z1 = (0, 2 interline) + center;
128 z2 = (0, - 1/2 interline)+ center;
130 penpos1(top_stem_thick, 0);
131 penpos2(bottom_stem_thick, 0);
133 fill simple_serif(z1r, z1l, 30) -- z2l -- z2r -- cycle;
136 y3l = (interline - stafflinethickness)/2 + ypart center;
137 z3l = whatever [z2r,z1r];
139 z3r = .26 [z2r, z1r];
142 z4 = (3/8 interline, interline/2) + center;
143 penpos4(whatever, 53);
144 y4l - y4r = 2 crook_thinness ;
145 % y4l - y4r = 6/20[crook_thinness, crook_fatness] ;
147 y5r = 1/4 interline + ypart center;
148 x5l = w + xpart center;
149 penpos5(crook_fatness, -175);
151 z8 = (0, - interline/2 - stafflinethickness/2) + center;
156 ne_angle = angle(z9 - z8);
159 z6l = 18/33 [z8,z9] + .5 crook_thinness *dir(ne_angle -90);
161 penpos7(crook_thinness, ne_angle + 90);
163 z6r = .3 (z9-z8) + z7r;
165 % penpos7(crook_thinness, angle(dir(z8-center) -180);
167 penpos8(whatever, ne_angle + 90);
168 x8r = xpart center - bottom_stem_thick/2;
169 penlabels(range 0 thru 10);
171 z10 = (bottom_stem_thick/2, -1/5 interline) + center;
173 unfill z3r{up} .. z4r{right} .. tension .9
176 .. z10 {up} -- cycle;
178 .. tension 0.8 ..z8l{(z9-z8)}
182 .. z4l{left} .. z3l -- cycle;
189 % unfortunately, 600dpi is not enough to show the brush of the stem.
191 fet_beginchar("Flat", "-1", "flat")
192 set_char_box(1.2 stafflinethickness#, .8 interline#, .5 interline#, 2 interline#);
193 draw_meta_flat(0, w, 1/3 interline);
197 fet_beginchar("Double flat", "-2", "flatflat")
198 save left_wid, overlap, right_wid;
202 set_char_box(1.2 stafflinethickness#, (left_wid + right_wid -overlap) *interline#, .5 interline#, 2 interline#);
203 draw_meta_flat(0, left_wid* interline, 1/3 interline);
204 draw_meta_flat((left_wid - overlap) *interline,
205 right_wid *interline, 1/3 interline);
208 fet_beginchar("Double sharp", "2", "sharpsharp")
209 set_char_box(0, interline#, .5 interline#, .5 interline#);
210 save klaverblad, klaversteel;
212 klaversteel = 1/15 interline;
213 klaverblad = .35 interline;
215 z1 = (klaversteel, 0);
216 z2 = (w/2 - klaverblad / 10, h - klaverblad);
218 z4 = z2 reflectedabout((0,0), (1,1));
219 z5 = z1 reflectedabout((0,0), (1,1));
223 z1{dir 45} .. {right}z2 -- z3 -- z4{down} .. {dir 225}z5 .. cycle,
226 addto currentpicture also currentpicture yscaled (-d/h);
227 addto currentpicture also currentpicture xscaled (-1);
230 currentpicture := currentpicture shifted (w/2,0);
236 fet_endgroup("accidentals");