--- /dev/null
+% feta-nummer.mf
+% part of LilyPond's pretty-but-neat music font
+
+fet_begingroup("nummer")
+
+define_pixels(height,thick,norm,thin,hair);
+foot_top#:=2thin#;
+foot_width#:=2thick#+thin#;
+define_pixels(foot_top,foot_width);
+define_pixels(kuulleke);
+
+def calc_kuulleke(expr w,alpha) =
+ begingroup;
+ save beta; beta=(alpha-90)/2;
+ save gamma; gamma=(90+alpha)/2;
+
+ penpos1(w/cosd(alpha),alpha);
+ penpos2(hair,90+beta);
+ z2=z1l+(1/2hair/tand((alpha+90)/2))*dir(beta);
+
+ penpos3(hair,gamma-90);
+ z3=z1r-(1/2hair/tand((90-alpha)/2))*dir(gamma);
+ z4=z1+kuulleke*dir(alpha-90);
+ endgroup;
+ enddef;
+
+% should make generic macro?
+%
+def draw_foot(expr xpos) =
+ begingroup;
+ clearxy;
+ penpos1(thick,0);
+ z1=(xpos,foot_top);
+ penpos2(foot_width,0);
+ z2=(x1,0);
+ penpos3(hair,-90);
+ z3r=z2r;
+ penpos4(hair,90);
+ z4l=z2l;
+ z5=(x1,hair/2);
+ fill z1..{right}z1r{down}..{right}z3l..z3r{left}..z5..{left}z4l..z4r{right}..{up}z1l{right}..z1..cycle;
+ endgroup;
+ enddef;
+
+def draw_flare(expr pos,alpha,beta,line,flare) =
+ begingroup;
+ clearxy;
+ penpos1(line,180+beta+alpha);
+ z1r=pos;
+ penpos2(flare,180+beta+alpha);
+ z2=z3;
+ penpos3(flare,0+alpha);
+ z3l=z1r+(1/2+0.43)*flare*dir(alpha+beta);
+ z4=z2r-1/6flare*dir(alpha);
+ penlabels(1,2,3,4);
+ pickup pencircle;
+ save t; t=0.833;
+ fill z1r{dir(alpha)}..z3r{dir(180+alpha-beta)}..z2l{dir(alpha+180)}
+ ..z3l{dir(180+alpha+beta)}..tension t..z4{dir(180+alpha+beta)}..z1l{dir(alpha+180)}..cycle;
+ endgroup;
+ enddef;
+
+def draw_six =
+ set_char_box(0, 2thick#+2thin#, 0, height#);
+ message "w:"&decimal w;
+ message "h:"&decimal h;
+
+ penpos1(thin,90);
+ z1=(norm,h/2+thin);
+ penpos2(hair,90);
+ z2=(w/2,y1);
+ penpos3(norm-hair,0);
+ % yup, should use the path [] "everywhere"
+ z3r=(w,1/2[0,y1]);
+ penpos4(hair,-90);
+ z4r=(x2,0);
+ penpos5(norm-hair,180);
+ z5r=(0,y1);
+ penpos6(hair,90);
+ z6r=(w-norm,h);
+ penpos7(norm-hair,180);
+ z7r=(0,h/2);
+ penpos10(norm-hair,180);
+ z10r=(0,y3);
+ penlabels(1,2,3,4,5,6,7,8,9,10,11);
+ save t; t=0.833;
+ fill z5{right}..z2r{right}..z3r{down}..z4r{left}
+ ..tension t..z7r{up}..tension t..z6r{right}
+ ..z6l{left}..tension t..z7l{down}..z10l{up}..cycle;
+ draw_flare(z6r,0,-90,hair,norm);
+ unfill z2l{right}..tension t..z3l{down}..tension t
+ ..z4l{left}..tension t..z10l{up}..tension t..cycle;
+ enddef;
+
+fet_beginchar("Numeral 0", "0", "zero")
+ set_char_box(0, 3thick#, 0, height#);
+ message "w:"&decimal w;
+ message "h:"&decimal h;
+ penpos1(thin,90);
+ z1r=(w/2,h);
+ penpos2(thick,0);
+ z2r=(w,h/2);
+ penpos3(thin,-90);
+ z3r=(w/2,0);
+ penpos4(thick,180);
+ z4r=(0,h/2);
+ fill z1r..z2r..z3r..z4r..cycle;
+ save t; t=1.2;
+ unfill z1l..tension t..z2l..tension t..z3l..tension t..z4l..tension t..cycle;
+fet_endchar;
+
+fet_beginchar("Numeral 1", "1", "one")
+ set_char_box(0, 5/2thick#+thin#, 0, height#);
+ message "w:"&decimal w;
+ message "h:"&decimal h;
+
+ save alpha; alpha=0;
+ calc_kuulleke(thick,alpha);
+ z1=(thick+thick/2,height);
+
+ penpos5(thick,0);
+ z5=(x1,foot_top);
+
+ z6=(0,h/2);
+ save beta; beta=angle(z1l-z6);
+ penpos7(thin,beta-90);
+ z7l=z6;
+ penpos8(thin/cosd(beta),-90);
+ z8l=z1l;
+ penpos9(thin,beta-90);
+ z9r=z8r+(thin/cosd(beta))*(0,-1);
+ penlabels(1,2,3,4,5,6,7,8,9);
+ save gamma; gamma=angle(length(z1r-z1),+2kuulleke);
+ fill z2r{dir(alpha-gamma)}..z4..{dir(alpha+gamma)}z3l..z3r{down}..{down}z5r{left}..z5..{left}z5l{up}..{up}z2l..cycle;
+ fill z7l{dir(beta)}..{dir(beta)}z1l..z2r..z9r{up}..z9l{dir(180+beta)}..{dir(180+beta)}z7r..cycle;
+ penlabels(7,8,9);
+
+ draw_foot(x1);
+fet_endchar;
+
+fet_beginchar("Numeral 2", "2", "two")
+ set_char_box(0, 3thick#-thin#, 0, height#);
+ message "w:"&decimal w;
+ message "h:"&decimal h;
+ clearxy;
+ save alpha; alpha=-50;
+ save beta; beta=75;
+ penpos1(thin,90+beta);
+ z1=(0,0)+(1/2sqrt(2)*thin)*dir(45);
+ penpos3(hair,90+beta);
+ z3=(w,thick)+(1/2sqrt(2)*hair)*dir(-135);
+ penpos2(norm,90+alpha);
+ x2-x1=x3-x2; y2=thick/2+hair/2;
+ penlabels(1,2,3);
+ fill z1r{dir(beta)}..{dir(alpha)}z2r..{dir(beta)}z3r
+ ..z3l{dir(180+beta)}..{dir(180+alpha)}z2l
+ ..{dir(180+beta)}z1l..cycle;
+
+ penpos4(thin,90);
+ z4r=(thick,2/5h);
+ penpos5(norm,0);
+ z5r=(w-thin,.72h);
+ penpos6(thin,90);
+ z6r=(w/2-thin-hair,h);
+ penlabels(4,5,6);
+ fill z1l{dir(beta)}..z4l{dir(15)}..z5r{up}..z6r{left}
+ ..z6l{right}..z5l{down}..z4r{dir(180+15)}
+ ..{dir(180+beta)}z1r..cycle;
+ draw_flare(z6r,180,90,thin,thick);
+fet_endchar;
+
+fet_beginchar("Numeral 3", "3", "three")
+ set_char_box(0, 2thick#+2thin#, 0, height#);
+ message "w:"&decimal w;
+ message "h:"&decimal h;
+ penpos1(hair,-90);
+ z1l=(norm+hair/2,h);
+ penpos2(norm-hair,180);
+ z2l=(w-hair,3/4h+hair/2);
+ penpos3(hair,90);
+ z3=(w/2,h/2+hair);
+ penpos4(hair,90);
+ z4=(1/2norm+hair,y3);
+ penpos5(norm,0);
+ z5r=(w,1/4h+hair/2);
+ penpos6(hair,-90);
+ z6r=(norm+hair,0);
+ penpos7(thin+hair,90);
+ z7=(x2,y3);
+ penlabels(1,2,3,4,5,6,7);
+ save alpha; alpha=25;
+ save t; t=0.833;
+ fill z1l{right}..z2l{down}..z7r{dir(180+alpha)}
+ ..z7l{dir(-alpha)}..z5r{down}..z6r{left}
+ ..z6l{right}..tension t..z5l{up}
+ ..tension t..z3l{left}..z4l{left}
+ ..z4r{right}..z3r{right}..tension t..z2r{up}
+ ..tension t..z1r{left}..cycle;
+ draw_flare(z1l,180,90,hair,norm);
+ draw_flare(z6r,180,-90,hair,norm+hair);
+fet_endchar;
+
+fet_beginchar("Numeral 4", "4", "four")
+ set_char_box(0, 3/2thick#+6thin#, 0, height#);
+ message "w:"&decimal w;
+ message "h:"&decimal h;
+
+ save alpha; alpha=0;
+ calc_kuulleke(3/2thick,alpha);
+ z1r=(w-3thin,height);
+
+ z5=(thin,1/4height+thin);
+ save beta; beta=angle(z3r-z5);
+ penpos6(thin,-90);
+ z6l=z5;
+ penpos7(thin,-90);
+ y7=y6; x7=w-1/2thin;
+ penpos8(thin,-alpha);
+ z8r=z5;
+ penlabels(1,2,3,4,5,6,7);
+ save gamma; gamma=angle(length(z1r-z1),+2kuulleke);
+ fill z2r{dir(alpha-gamma)}..z4..{dir(alpha+gamma)}z3l..z3r{dir(180+beta)}..{dir(180+beta)}z8r{right}..{right}z7l..z7r{left}..{left}z6r..z8l{dir(beta)}..{up}z2l..cycle;
+
+ clearxy;
+
+ save alpha; alpha=beta;
+ calc_kuulleke(thick,alpha);
+ z1r=(w-3thin,height-(thin+hair)/cosd(alpha));
+
+ penpos5(thick,0);
+ z5=(x1,foot_top);
+
+ save gamma; gamma=angle(length(z1r-z1),+2kuulleke);
+ fill z2r{dir(alpha-gamma)}..z4..{dir(alpha+gamma)}z3l..z3r{down}..{down}z5r{left}..z5..{left}z5l{up}..{up}z2l..cycle;
+ penlabels(1,2,3,4,5);
+
+ draw_foot(x5);
+fet_endchar;
+
+fet_beginchar("Numeral 5", "5", "five")
+ set_char_box(0, 2thick#+thin#+hair#, 0, height#);
+ message "w:"&decimal w;
+ message "h:"&decimal h;
+ calc_kuulleke(w-thin,0);
+ z1=(w/2+thin/2,h);
+ save alpha; alpha=0;
+ penpos5(thin,0);
+ z5l=(x1l,h-norm);
+ penpos6(hair,90-45);
+ z6=z5r+1/2hair*dir(-45);
+ penpos7(thin,0);
+ z7l=(x1l,h/2+thin/2);
+ penlabels(1,2,3,4,5,6,7);
+ save gamma; gamma=angle(length(z1r-z1),+2kuulleke);
+ fill z2r{dir(alpha-gamma)}..z4..{dir(alpha+gamma)}z3l
+ ..z3r{dir(-135)}..{left}z6r..z6l{down}..z7r{down}
+ ..z7l{up}..{up}z2l..cycle;
+ penpos8(hair,90);
+ z8=z7r;
+ penpos9(hair,90);
+ z9l=(x11,y7+thin);
+ penpos10(norm,0);
+ z10r=(w,1/2[y9r,y11r]);
+ penpos11(hair,-90);
+ z11r=(norm+hair,0);
+ penlabels(8,9,10,11);
+ save beta; beta=45;
+ save t; t=0.833;
+ fill z8r{dir(beta)}..z9r{right}..z10r{down}..z11r{left}
+ ..z11l{right}..tension t..z10l{up}..tension t
+ ..z9l{left}..z8l{dir(180+beta)}..cycle;
+ draw_flare(z11r,180,-90,hair,norm+hair);
+fet_endchar;
+
+fet_beginchar("Numeral 6", "6", "six")
+ draw_six;
+fet_endchar;
+
+fet_beginchar("Numeral 7", "7", "seven")
+ set_char_box(0, 5/2thick#+thin#, 0, height#);
+ message "w:"&decimal w;
+ message "h:"&decimal h;
+
+ save alpha; alpha=-180;
+if true:
+ penpos1(3/2thick,180+alpha);
+ penpos2(hair,180+alpha-45);
+ z2=z1l+(1/4sqrt(2)*hair)*dir(alpha-135);
+ penpos3(hair,180+alpha+45);
+ z3=z1r+(1/4sqrt(2)*hair)*dir(alpha-45);
+ z4=z1+kuulleke*dir(alpha-90);
+else:
+ % shit, does not work
+ calc_kuulleke(3/2thick,-alpha);
+fi
+ z1l=(thin,0);
+
+ save beta; beta=50;
+ penpos5(thin,90+beta);
+ z5=(w,h)+(1/2sqrt(2)*thin)*dir(-135);
+
+ save gamma; gamma=angle(length(z1r-z1),+2kuulleke);
+ save delta; delta=12;
+ pickup pencircle;
+ fill z3l{dir(alpha-gamma)}..z4..{dir(alpha+gamma)}z2r..
+ z2l{dir(beta+delta)}..{dir(beta)}z5r
+ ..z5l{dir(180+beta)}..{dir(delta-90)}z3r..cycle;
+ penlabels(1,2,3,4,5);
+
+ clearxy;
+ save alpha; alpha=-50;
+ penpos1(2thin,90);
+ z1=(3/2thin,h-(thick+thin)/2);
+ penpos3(thin,90+beta);
+ z3=(w,h)+(1/2sqrt(2)*thin)*dir(-135);
+ penpos2(norm,90+alpha);
+ x2-x1=x3-x2; y2=h-thick/2;
+
+ penpos4(thin,0);
+ z4l=(0,h-thin/2);
+ penpos5(thin,0);
+ z5l=(0,h/2+thin/2);
+
+ penpos6(4thin,90);
+ z6r=(thin,y1r+thin/2);
+
+ fill z1r{dir(beta)}..{dir(alpha)}z2r..{dir(beta)}z3r
+ ..z3l{dir(180+beta)}..{dir(180+alpha)}z2l
+ ..{dir(180+beta)}z1l..z6l{down}..{down}z5r
+ ..z5l{up}..{up}z4l..z4r{down}..{down}z6r..{right}cycle;
+ penlabels(1,2,3,4,5,6);
+fet_endchar;
+
+fet_beginchar("Numeral 8", "8", "eight")
+ set_char_box(0, 2thick#+3thin#, 0, height#);
+ message "w:"&decimal w;
+ message "h:"&decimal h;
+ save alpha; alpha=60;
+ save beta; beta=alpha-15;
+ z1=(w/2,h/2+hair);
+ penpos2(hair,90+180+beta);
+ z2=(w/4,h/2+thin);
+ z3=(0,h/4+thin/2);
+ penpos4(hair,90);
+ z4l=(x1,0);
+ penpos5(norm,90+90+alpha);
+ z5=z1+w/4*dir(alpha-90);
+ penpos6(norm,90+90+alpha);
+ z6=z1+w/4*dir(90+alpha);
+ penpos7(hair,90);
+ z7r=(x1,h);
+ z8=(w-hair,3/4h+thin/2);
+ penpos9(hair,90+180+beta);
+ z9=(3/4w,h/2);
+ penlabels(1,2,3,4,5,6,7,8,9);
+ save t; t=0.85;
+ fill z2r{dir(180+beta)}..tension t..z4r{right}..z5r{dir(90+alpha)}..z6r{dir(90+alpha)}..tension t..z7r{right}..z8{down}..z9r{dir(180+beta)}..z9l{dir(beta)}..tension t..z7l{left}..z6l{dir(alpha-90)}..z5l{dir(alpha-90)}..tension t..z4l{left}..z3{up}..z2l{dir(beta)}..cycle;
+fet_endchar;
+
+fet_beginchar("Numeral 9", "9", "nine")
+ draw_six;
+% xy_mirror_char;
+ currentpicture := currentpicture scaled -1;
+ currentpicture := currentpicture shifted (w,h);
+fet_endchar;
+
+fet_endgroup("nummer")
+