--- /dev/null
+% bolletjes.mf
+% part of LilyPond's pretty-but-neat music font
+% third try at bolletjes
+% most beautiful bolletjes are not circular, and not even symmetric.
+
+interline#:=staffsize#/(stafflines-1)+stafflinethickness#;
+
+def ugh_grid =
+ makegrid(-5pt,-4pt,-3pt,-2pt,-1pt,0pt,1pt,2pt,3pt,4pt,5pt)
+ (-5pt,-4pt,-3pt,-2pt,-1pt,0pt,1pt,2pt,3pt,4pt,5pt);
+ makegrid(-4.8pt,-4.6pt,-4.4pt,-4.2pt,-4.0pt,
+ -3.8pt,-3.6pt,-3.4pt,-3.2pt,-3.0pt,
+ -2.8pt,-2.6pt,-2.4pt,-2.2pt,-2.0pt,
+ -1.8pt,-1.6pt,-1.4pt,-1.2pt,-1.0pt,
+ -0.8pt,-0.6pt,-0.4pt,-0.2pt,-0.0pt,
+ 0.0pt,0.2pt,0.4pt,0.6pt,0.8pt,
+ 1.0pt,1.2pt,1.4pt,1.6pt,1.8pt,
+ 2.0pt,2.2pt,2.4pt,2.6pt,2.8pt,
+ 3.0pt,3.2pt,3.4pt,3.6pt,3.8pt,
+ 4.0pt,4.2pt,4.4pt,4.6pt,4.8pt)
+ (-4.8pt,-4.6pt,-4.4pt,-4.2pt,-4.0pt,
+ -3.8pt,-3.6pt,-3.4pt,-3.2pt,-3.0pt,
+ -2.8pt,-2.6pt,-2.4pt,-2.2pt,-2.0pt,
+ -1.8pt,-1.6pt,-1.4pt,-1.2pt,-1.0pt,
+ -0.8pt,-0.6pt,-0.4pt,-0.2pt,-0.0pt,
+ 0.0pt,0.2pt,0.4pt,0.6pt,0.8pt,
+ 1.0pt,1.2pt,1.4pt,1.6pt,1.8pt,
+ 2.0pt,2.2pt,2.4pt,2.6pt,2.8pt,
+ 3.0pt,3.2pt,3.4pt,3.6pt,3.8pt,
+ 4.0pt,4.2pt,4.4pt,4.6pt,4.8pt);
+ enddef;
+
+
+% a: x diameter
+% b: y diameter
+% err_x: drift of y axis at top
+% err_y: drift of x axis at right
+def distorted_ellipse(expr a,b,err_y,err_x,super) =
+ superellipse((a,err_x),(-err_y,b),(-a,-err_x),(err_y,-b),super);
+ enddef;
+
+% brr.
+% def notehead(expr code,il,hdb,adb,adw,xda,s,alpha,cda,ddb,r) =
+def notehead(expr code,interline,name) =
+ save a,b,h,w,ai,bi;
+ h#=interline;
+ 2b#=h#*b_h;
+ a#=b#*a_b;
+ w#=2a#/a_w;
+ ai#=a#*ai_a;
+ bi#=ai#/ai_bi;
+ define_pixels(a,b);
+ define_pixels(w,h);
+ define_pixels(ai,bi);
+% save x;
+% x1=-x3=a; x2=x4=0; y1=y3=0; y2=-y4=b;
+% penlabels(1,2,3,4);
+if test>0:
+ beginchar(code,w#,h#,0); name;
+ fill distorted_ellipse(a,b,a*err_y_a,0,super);
+ unfill distorted_ellipse(ai,bi,ai*err_y_ai,0,superi);
+if test=1:
+ pickup pencircle;
+ draw (0,0)--(a,0) rotated alpha;
+ draw (0,0)--(-a,0) rotated alphai;
+else:
+ ugh_grid;
+fi
+else:
+ beginchar(code,w#,h#,0); name;
+ path black,white;
+ black=distorted_ellipse(a,b,a*err_y_a,0,super);
+ black:=black rotated alpha;
+% black:=black shifted (w/2,h/2);
+ black:=black shifted (w/2,0);
+ fill black;
+ white=distorted_ellipse(ai,bi,ai*err_y_ai,bi*err_x_bi,superi);
+ white:=white rotated alphai;
+% white:=white shifted (w/2,h/2);
+ white:=white shifted (w/2,0);
+ unfill white;
+fi
+ endchar;
+ enddef;
+
+% whole note
+% a/b=1.7
+% h/b=1;
+% a/w=1;
+% x/a=1;
+%notehead(incr code,interline#,1,1.7,1,1/20,0.707,0,1/2.2,1/1.3,0.74);
+%notehead(incr code,interline#,1,1.7,1,1/20,0.707,0,5/11,3/4,0.74);
+
+%def notehead(expr code,il,hdb,adb,adw,xda,s,alpha,cda,ddb,r) =
+
+% whole note
+% wanske, p.38
+save a_b,err_y_a,alpha,super;
+save ai_a,ai_bi,err_y_ai,err_x_bi,alphai,superi;
+save b_h,a_w;
+a_b:=1.80;
+err_y_a:=0; % no slant
+alpha:=0;
+super:=0.707;
+ai_a:=0.508;
+ai_bi:=1.23;
+% err_y_ai:=0.0938;
+% err_x_bi:=0;
+err_y_ai:=0;
+err_x_bi:=0.115;
+alphai:=135;
+superi:=0.68;
+b_h:=1; %no rotate-> no height correction
+a_w:=1; % no rotate-> no width correction
+notehead(incr code,interline#,"Whole notehead");
+
+% half note
+% wanske, p.39
+a_b:=1.49;
+err_y_a:=0.157;
+alpha:=34;
+super:=0.66;
+ai_a:=0.863;
+ai_bi:=3.41;
+err_y_ai:=0;
+err_x_bi:=-0.12;
+alphai:=alpha;
+superi:=0.80;
+b_h:=0.935;
+a_w:=1.12;
+notehead(incr code,interline#,"Half notehead");
+
+% quarter note
+% wanske p.38
+a_b:=1.57;
+err_y_a:=0.044;
+alpha:=32;
+super:=0.707;
+ai_a:=0;
+ai_bi:=1;
+err_y_ai:=0;
+err_x_bi:=0;
+alphai:=0;
+superi:=0.707;
+b_h:=0.85;
+a_w:=1.09;
+notehead(incr code,interline#,"Quarter notehead");
+
+end.
+
projects / lilypond.git / commitdiff