%
% source file of LilyPond's pretty-but-neat music font
%
-% (c) 1997--2001 Jan Nieuwenhuizen <janneke@gnu.org>
+% (c) 1997--2004 Jan Nieuwenhuizen <janneke@gnu.org>
% & Han-Wen Nienhuys <hanwen@cs.uu.nl>
+% & Juergen Reuter <reuter@ipd.uka.de>
%
+test_outlines := 0;
+
% most beautiful noteheads are pronounced, not circular,
% and not even symmetric.
% These examples are inspired by [Wanske], see literature list
-save black_notehead_width;
-numeric black_notehead_width;
-fet_begingroup("noteheads");
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% NOTE HEAD VARIABLES
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+save black_notehead_width, noteheight,
+ slash_thick, slash_slope, overdone_heads;
+numeric black_notehead_width, noteheight, slash_thick;
-noteheight#:=staff_space#+ (1 + overdone_heads) *stafflinethickness#;
-define_pixels(noteheight);
+fet_begingroup("noteheads");
-%%%%%%%%
-%
-%
-%
-% MENSURAL NOTATION
-%
-%
-%
-brevis_wid# := 2 staff_space#;
-def draw_brevis(expr brevwid) =
- save beamheight, head_width;
- save holeheight, stem_width;
- save serif_size, serif_protrude;
+% slope of slash. From scm/grob-description.scm. How to auto-copy?
+slash_slope := 1.7;
- head_width# = brevwid;
- holeheight = 3 stafflinethickness;
- stem_width = 1.4 stafflinethickness;
+% thickness of slash lines. quarter notes get 1.5slt width.
+slash_thick# := 2/3*0.48staff_space#;
- define_pixels(head_width);
- set_char_box(0, head_width#, noteheight#/2, noteheight#/2);
-
- 2 beamheight + holeheight = noteheight;
- serif_size = (holeheight - stafflinethickness)/2;
- serif_protrude = 1.5 serif_size;
- penpos1(stem_width, 0);
- penpos2(stem_width, 0);
- penpos3(beamheight, 90);
- penpos4(beamheight, 90);
- penpos5(stem_width, 180);
-
- z1l = (0, 0);
- z2l = (0, -stafflinethickness/2);
- z3r = z2r + serif_size *(1,-1);
- y4r = y3r;
- x4r = head_width/2;
- z5l = z3l + (-serif_size, -serif_protrude);
-
- penlabels(1,2,3,4, 5);
- fill z1r -- z1l -- z5r{down} .. z5l{up} .. z3l{right}
- -- z4l -- z4r -- z3r{left} .. z2r{up} -- cycle;
-
- addto currentpicture also currentpicture yscaled -1;
- show z4r; show z4l;
- addto currentpicture also currentpicture
- shifted (-x4r,0) xscaled -1 shifted (x4l,0);
+%
+% Hand-engraved music often has balls extending above and below
+% the lines. If you like that, modify overdone heads (unit:
+% stafflinethickness)
+%
+overdone_heads = 0.0;
+noteheight#:=staff_space#+ (1 + overdone_heads) *stafflinethickness#;
-enddef;
+define_pixels(slash_thick, noteheight);
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
-% Some sources (eg Musix/OpusTeX think that the appendage should be on
-% the left, some say right. Right wins democratically.
+% SLANT moves both extremes on the long axis (by SLANT * ELLIPSIDITY,
+% so SLANT = -1, puts the extreme on the long axis next to the short axis one.)
%
-def draw_longa (expr wid) =
- draw_brevis(wid);
- save theta;
-
- x7r = head_width;
- y7 = y5;
-% z7 = z5;
- z6 - z7 = (stem_width/2, -staff_space);
- theta = angle(z6-z7)+ 90;
- penpos7(stem_width, theta);
- penpos6(1.2 stem_width, theta);
-
- fill z7r .. z6r{z6-z7} .. {z7-z6} z6l -- z7l -- cycle;
- penlabels(6,7);
-enddef;
-%
-% En wij presenteren U: de opvolgster van Emily
-%
-% (ze is wel breed)
-%
-fet_beginchar("Maxima notehead", "-3mensural", "mensuralmaximahead");
- draw_longa (1.3 brevis_wid#)
-fet_endchar;
+def draw_outside_ellipse (expr ellipsidity, tilt, superness,
+ slant) =
+ save attachment_y;
+ save p;
+ path p;
-fet_beginchar("Longa notehead", "-2mensural", "mensurallongahead");
- draw_longa (brevis_wid#)
-fet_endchar;
+ p := superellipse ((ellipsidity, 0), (-slant * ellipsidity, 1.0),
+ (- ellipsidity, 0), (slant * ellipsidity, -1.0), superness);
-fet_beginchar("Brevis notehead", "-1mensural", "mensuralbrevishead")
- draw_brevis(brevis_wid#);
-fet_endchar;
+ p := p rotated tilt;
-def draw_mensural_black_head (expr wid) =
- save head_width;
- head_width# = wid;
- set_char_box (0, head_width#, noteheight#/2, noteheight#/2);
+ save top_point, right_point;
+ pair top_point, right_point;
+ top_point := directionpoint left of p;
+ right_point := directionpoint up of p;
- y3 = y1 =0;
- x2 = x4 = (x1 + x3) /2;
- define_pixels (head_width);
- pickup pencircle scaled blot_diameter;
- top y2 = h;
- bot y4 = -d;
- lft x1 = 0;
- rt x3 = w;
+ save scaling, width, height;
- filldraw z1 -- z2 -- z3 -- z4 -- cycle;
-enddef;
+ scaling# = noteheight# /(2 ypart (top_point));
+ width# := 2 xpart (right_point) * scaling#;
-def draw_mensural_open_head (expr wid)=
- draw_mensural_black_head (wid);
- save diamNW, diamSW;
- diamNW = length (z2 - z1) + blot_diameter;
- diamSW = length (z4 - z1) + blot_diameter;
+ define_pixels (width, scaling);
- save hole_widthNW, hole_widthSW;
- hole_widthNW = 0.34 diamNW ;
- hole_widthSW + 2.6 stafflinethickness = diamSW;
-
- (z7 + z5)/2 = (w/2, 0);
- (z8 + z6)/2 = (w/2, 0);
- (z6 - z5) = hole_widthNW * unitvector (z2 - z1);
- (z7 - z6) = hole_widthSW * unitvector (z4 - z1);
-
- labels (1,2,3,4,5,6,7,8);
-
- unfill z5 -- z6 -- z7 -- z8 --cycle;
+ set_char_box (0, width#, noteheight#/2, noteheight#/2);
+
+ % attachment Y
+ charwy := ypart (right_point) * scaling#;
+ charwx := width# ;
+
+ p := p scaled scaling shifted (width/2, 0) ;
+ if test_outlines = 1:
+ pickup pencircle scaled 1 ; draw p;
+ else:
+ fill p;
+ fi;
enddef;
-fet_beginchar("Mensural open head","0mensural","mensuralminimhead")
- draw_mensural_open_head (staff_space#);
-fet_endchar;
-fet_beginchar("Mensural open head","1mensural","mensuralsemiminimhead")
- draw_mensural_open_head (staff_space#);
-fet_endchar;
+def undraw_inside_ellipse (expr ellipsidity, tilt, superness, clearance,
+ center) =
+begingroup
+ save p;
+ path p;
-fet_beginchar("Mensural black head","2mensural","fusahead")
- draw_mensural_black_head (staff_space#);
-fet_endchar;
+ p := superellipse ((ellipsidity, 0), (0, 1.0),
+ (- ellipsidity, 0), (0, -1.0), superness);
+ p := p rotated tilt;
-%%%%%%%%%%%%
-%
-%
-% ledger (leger) lines
-%
-fet_beginchar("Ledger ending", "ledgerending", "ledgerending")
-set_char_box (5/2 ledgerlinethickness#, 5/2 ledgerlinethickness#,
- ledgerlinethickness#/2,ledgerlinethickness#/2);
- pickup pencircle scaled 1.3 blot_diameter;
-
- rt x2 = w;
- lft x1 = -b;
- x3 = x2;
- bot y1 = -d;
- y2 = y1;
+ save top_point, right_point;
+ pair top_point, right_point;
- top y3 = h;
- y4 = y3;
- x4 = x1;
+ top_point := directionpoint left of p;
+ right_point := directionpoint up of p;
- filldraw z1 --- z2 --- z3 --- z4 --- cycle ;
-fet_endchar;
+ save height, scaling;
+ height# = staff_space# + stafflinethickness# - clearance;
+ scaling# = height# /(2 ypart (top_point));
+ define_pixels (scaling);
+ p := (p scaled scaling) shifted center;
+
+ if test_outlines = 1:
+ pickup pencircle scaled 1; draw p;
+ else:
+ unfill p;
+ fi
+endgroup;
+enddef;
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%
-%
-%
-%
-%
-% TODO: Document these!
-
-% setup user vars
-def setup_notehead_vars =
- save a_b,err_y_a,tilt,superness;
- save ai_a,ai_bi,err_y_ai,err_x_bi,inner_tilt,inner_superness;
- save b_h,a_w;
- enddef;
-
-% setup addititional vars and calc them
-def notehead_calc =
- save a,beta,ai,bi, ht, wd;
- ht# =noteheight#;
- 2beta#=ht#*b_h;
- a# = beta#*a_b;
- wd# = 2a# / a_w;
- ai# = a# * ai_a;
- bi# = ai#/ai_bi;
- define_pixels(a,beta);
- define_pixels(ai,bi);
- set_char_box(0, wd#, .5 ht#, .5 ht#);
- enddef;
-
-
-% draw the outer and inner ellipse.
-def notehead_draw =
- path black,white;
- black=distorted_ellipse(a,beta,a*err_y_a,0,superness);
- white=distorted_ellipse(ai,bi,ai*err_y_ai,bi*err_x_bi,inner_superness);
-if test>1: %fixme
- save x;
- x1=-x3=a; x2=x4=0; y1=y3=0; y2=-y4=b;
- penlabels(1,2,3,4);
- test_grid;
-else:
- black:=black rotated tilt;
- black:=black shifted (w/2,0);
- white:=white rotated inner_tilt;
- white:=white shifted (w/2,0);
-fi
- fill black;
- unfill white;
-
- enddef;
-def draw_whole_head =
- setup_notehead_vars;
-
- a_b:=1.80;
- err_y_a:=0; % no slant
- tilt:=0;
- superness:=0.707;
- ai_a:=0.508;
- % ai_bi:=1.23;
- ai_bi:=1.30; % jcn
- % err_y_ai:=0.0938;
- % err_x_bi:=0;
- err_y_ai:=0;
- err_x_bi:=0.115;
- % inner_tilt:=135;
- inner_tilt:=125; % jcn
- % inner_superness:=0.69;
- inner_superness:=0.68; % jcn
- b_h:=1; %no rotate-> no height correction
- a_w:=1; % no rotate-> no width correction
-
- notehead_calc;
- whole_notehead_width# := wd#;
- notehead_draw;
-enddef;
%
fudge = blot_diameter /2;
stemthick# = 2 stafflinethickness#;
- draw_whole_head;
+ draw_outside_ellipse (1.80, 0, 0.707, 0);
+ undraw_inside_ellipse (1.30, 125, 0.68, 2 stafflinethickness#,
+ (w /2, 0));
pickup pencircle scaled stemthick;
y4 = y2;
y3 = y1;
- draw z1 -- z2;
- draw z3 -- z4;
+ draw_gridline(z1,z2,stemthick);
+ draw_gridline(z3,z4,stemthick);
+
fet_endchar;
-% whole note
-% Wanske, p.38
+
+
fet_beginchar("Whole notehead", "0", "wholehead")
- draw_whole_head;
+ draw_outside_ellipse (1.80 - puff_up_factor / 3.0, 0, 0.707, 0);
+ undraw_inside_ellipse (1.30, 125 - puff_up_factor *10,
+ 0.68, 2 stafflinethickness#,
+ (w /2, 0));
+
+% draw_staff_outline (-2, 2, 0.5);
+
fet_endchar;
+fet_beginchar("Half notehead", "1", "halfhead")
+ draw_outside_ellipse (1.53 - puff_up_factor / 3.0, 34, 0.66, 0.17);
+ undraw_inside_ellipse (3.25, 33, 0.81,
+ 2.5 stafflinethickness#, (w/2, 0));
-% half note
-% Wanske, p.39
-fet_beginchar("Half notehead", "1",
- "halfhead")
- setup_notehead_vars;
- % a_b:=1.49; % after text
- a_b:=1.50; % after drawing
- err_y_a:=0.157;
- tilt:=34;
- % superness:=0.66;
- superness:=0.67; % jcn
- % ai_a:=0.863;
- ai_a:=0.850; % jcn
- % ai_bi:=3.14;
- ai_bi:=3.30; % jcn
- err_y_ai:=0;
- err_x_bi:=-0.12;
- inner_tilt:=tilt;
- inner_superness:=0.80;
- b_h:=0.935;
- a_w:=1.12;
+fet_endchar;
+
+fet_beginchar("Quart notehead", "2", "quarthead")
- notehead_calc;
- half_notehead_width# := wd#;
- notehead_draw;
+ % used to have 32. With 30, they are slightly bolder.
+ draw_outside_ellipse (1.42 - puff_up_factor / 3.0, 30, 0.707, 0);
+ black_notehead_width# := charwd;
fet_endchar;
+%%%%%%%%%%%%%%%%
+%% testing shapes.
-% quarter note
-% Wanske p.38
-fet_beginchar("Quart notehead", "2", "quarthead")
- setup_notehead_vars;
- % a_b:=1.57; % after text
- a_b:=1.54; % after drawing
- err_y_a:=0.044;
- tilt:=32;
- superness:=0.707;
- ai_a:=0;
- ai_bi:=1;
- err_y_ai:=0;
- err_x_bi:=0;
- inner_tilt:=0;
- inner_superness:=0.707;
- b_h:=0.85;
- a_w:=1.09;
-
- notehead_calc;
- black_notehead_width# := wd#;
- notehead_draw;
-fet_endchar;
-
-
-% whole note
-% Wanske, p.38
-fet_beginchar("Whole diamondhead", "0diamond", "wholediamondhead")
- setup_notehead_vars;
+if 0 = 1 :
+
+
+fet_beginchar("Quart noteheadPQ", "2PQ", "quartheadPQ")
+ draw_outside_ellipse (1.0 - puff_up_factor / 2.0, 32, 0.707, 0);
+fet_endchar;
+
+fet_beginchar("Quart noteheadAA", "2AA", "quartheadAA")
+ draw_outside_ellipse (1.35 - puff_up_factor / 2.0, 32, 0.707, 0);
+fet_endchar;
+
+fet_beginchar("Quart noteheadAB", "2AB", "quartheadAB")
+ draw_outside_ellipse (1.4 - puff_up_factor / 2.0, 32, 0.707, 0);
- a_b:=1.80;
- err_y_a:=0; % no slant
- tilt:=0;
- superness:=0.495;
- ai_a:=0.350;
- % ai_bi:=1.23;
- ai_bi:=1.30; % jcn
- % err_y_ai:=0.0938;
- % err_x_bi:=0;
- err_y_ai:=0;
- err_x_bi:=0.115;
- % inner_tilt:=135;
- inner_tilt:=125; % jcn
- % inner_superness:=0.69;
- inner_superness:=0.6; % jcn
- b_h:=1; %no rotate-> no height correction
- a_w:=1; % no rotate-> no width correction
-
- notehead_calc;
- whole_notehead_width# := wd#;
- notehead_draw;
-fet_endchar;
-
-
-% half note
-% Wanske, p.39
-fet_beginchar("Half diamondhead", "1diamond",
- "halfdiamondhead")
- setup_notehead_vars;
+fet_endchar;
+fet_beginchar("Quart noteheadAC", "2AC", "quartheadAC")
+ draw_outside_ellipse (1.45 - puff_up_factor / 2.0, 32, 0.707, 0);
+fet_endchar;
- a_b := 1.50; % after drawing
- err_y_a:=0.157;
+fet_beginchar("Quart noteheadAD", "2AD", "quartheadAD")
+ draw_outside_ellipse (1.5 - puff_up_factor / 2.0, 32, 0.707, 0);
+fet_endchar;
- tilt:=34;
- superness:=0.49; % jcn
- ai_a:=0.550; % jcn
- ai_bi:=3.30; % jcn
+fet_beginchar("Quart noteheadAD", "2AE", "quartheadAD")
+ draw_outside_ellipse (1.55 - puff_up_factor / 2.0, 32, 0.707, 0);
+fet_endchar;
- err_y_ai:=0;
- err_x_bi:=-0.12;
- inner_tilt:=tilt;
- inner_superness:=0.80;
+fet_beginchar("Quart noteheadAD", "2AF", "quartheadAD")
+ draw_outside_ellipse (1.6 - puff_up_factor / 2.0, 32, 0.707, 0);
+fet_endchar;
+fet_beginchar("Quart noteheadAD", "2AG", "quartheadAD")
+ draw_outside_ellipse (1.65 - puff_up_factor / 2.0, 32, 0.707, 0);
+fet_endchar;
- b_h:= 1.03;
- a_w:= 1.2;
- notehead_calc;
- half_notehead_width# := wd#;
- notehead_draw;
+fet_beginchar("Quart noteheadBA", "2BA", "quartheadBA")
+ draw_outside_ellipse (1.35 - puff_up_factor / 2.0, 35, 0.707, 0);
+fet_endchar;
+fet_beginchar("Quart noteheadBB", "2BB", "quartheadBB")
+ draw_outside_ellipse (1.4 - puff_up_factor / 2.0, 35, 0.707, 0);
+
+fet_endchar;
+fet_beginchar("Quart noteheadBC", "2BC", "quartheadBC")
+ draw_outside_ellipse (1.45 - puff_up_factor / 2.0, 35, 0.707, 0);
+fet_endchar;
+fet_beginchar("Quart noteheadBD", "2BD", "quartheadBD")
+ draw_outside_ellipse (1.5 - puff_up_factor / 2.0, 35, 0.707, 0);
+fet_endchar;
+fet_beginchar("Quart noteheadBD", "2BE", "quartheadBD")
+ draw_outside_ellipse (1.55 - puff_up_factor / 2.0, 35, 0.707, 0);
+fet_endchar;
+fet_beginchar("Quart noteheadBD", "2BF", "quartheadBD")
+ draw_outside_ellipse (1.6 - puff_up_factor / 2.0, 35, 0.707, 0);
+fet_endchar;
+fet_beginchar("Quart noteheadBD", "2BG", "quartheadBD")
+ draw_outside_ellipse (1.65 - puff_up_factor / 2.0, 35, 0.707, 0);
fet_endchar;
-% quarter note
-% Wanske p.38
-fet_beginchar("Quart diamondhead", "2diamond", "diamondhead")
- set_char_box(0, black_notehead_width#, noteheight#/2, noteheight#/2);
- save a_b,err_y_a,tilt,superness;
- save b_h,a_w;
- save a,beta,ai,bi, ht, wd;
- a_b:= 1.8;
- err_y_a:=-0.044;
- b_h:=0.90;
- a_w:=1.1;
- tilt:=35;
- superness:=0.495;
+fet_beginchar("Quart noteheadCA", "2CA", "quartheadCA")
+ draw_outside_ellipse (1.35 - puff_up_factor / 2.0, 40, 0.707, 0);
+fet_endchar;
+fet_beginchar("Quart noteheadCB", "2CB", "quartheadCB")
+ draw_outside_ellipse (1.4 - puff_up_factor / 2.0, 40, 0.707, 0);
+fet_endchar;
+fet_beginchar("Quart noteheadCC", "2CC", "quartheadCC")
+ draw_outside_ellipse (1.45 - puff_up_factor / 2.0, 40, 0.707, 0);
+fet_endchar;
+fet_beginchar("Quart noteheadCD", "2CD", "quartheadCD")
+ draw_outside_ellipse (1.5 - puff_up_factor / 2.0, 40, 0.707, 0);
+fet_endchar;
+fet_beginchar("Quart noteheadCD", "2CE", "quartheadCD")
+ draw_outside_ellipse (1.55 - puff_up_factor / 2.0, 40, 0.707, 0);
+fet_endchar;
+fet_beginchar("Quart noteheadCD", "2CF", "quartheadCD")
+ draw_outside_ellipse (1.6 - puff_up_factor / 2.0, 40, 0.707, 0);
+fet_endchar;
+fet_beginchar("Quart noteheadCD", "2CG", "quartheadCD")
+ draw_outside_ellipse (1.65 - puff_up_factor / 2.0, 40, 0.707, 0);
+fet_endchar;
- ht# =noteheight#;
- 2beta#=ht#*b_h;
- a# = beta#*a_b;
+fi
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+
+fet_beginchar("Whole diamondhead", "0diamond", "wholediamondhead")
+ draw_outside_ellipse (1.80, 0, 0.495, 0);
+ undraw_inside_ellipse (1.30, 125, 0.6,
+ .4 staff_space# + stafflinethickness#,
+ (w /2, 0));
- define_pixels(a,beta);
+fet_endchar;
+
+fet_beginchar("Half diamondhead", "1diamond",
+ "halfdiamondhead")
- black := distorted_ellipse(.72 noteheight, .45 noteheight, -.2 noteheight , 0, superness)
-
-% beta,a*err_y_a,0,superness);
+ draw_outside_ellipse (1.50, 34, 0.49, 0.17);
+ undraw_inside_ellipse (3.5, 33, 0.80,
+ .3 staff_space# + 1.5 stafflinethickness#, (w/2, 0));
- black:=black rotated tilt;
- black:=black shifted (w/2,0);
- fill black;
fet_endchar;
-save triangle; path triangle;
-triangle = (-sqrt3/4,-1/2) -- (0,1) -- (sqrt3/4,-1/2) -- cycle;
+fet_beginchar("Quart diamondhead", "2diamond", "diamondhead")
+ draw_outside_ellipse (1.80, 35, 0.495, -0.25);
+fet_endchar;
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+
+
+
+
+def def_triangle =
+ save triangle,kern; path triangle;
+ save left_point, height, width;
+ pair exact_left_point;
+ save pen_thick;
+ pen_thick# = stafflinethickness# + .1 staff_space#;
+ define_pixels(pen_thick);
+
+ exact_left_point := llap# * dir (90 + tilt);
+ height# = max (ypart exact_left_point,
+ -ypart (exact_left_point rotated 120)) + pen_thick#/2;
+
+ kern# = 1/3 xpart (exact_left_point - (exact_left_point rotated 120));
+ width# = xpart (-exact_left_point + (exact_left_point rotated 240));
+ define_pixels (kern);
+ z1 = (hround_pixels (xpart exact_left_point), vround_pixels (ypart exact_left_point));
+ z2 = z1 rotated 120;
+ z3 = z1 rotated 240;
+
+ z12 = caveness[.5[z1,z2],z3];
+ z23 = z12 rotated 120;
+ z31 = z12 rotated 240;
+ triangle = z1 .. z12 .. z2 ..
+ z2 .. z23 .. z3 ..
+ z3 .. z31 .. z1 ..
+ cycle;
+ triangle := triangle shifted (-x1+pen_thick/2-kern,0) xscaled xs;
+ pickup pencircle scaled pen_thick xscaled xs;
+% labels(1,2,12,23,31,3);
+ set_char_box(0, width# - kern#+ pen_thick#, height#, height#);
+enddef;
fet_beginchar("Whole trianglehead", "0triangle", "wholetrianglehead")
- set_char_box(0, 2(noteheight#+stafflinethickness#)/sqrt3*7/8,
- (noteheight#+stafflinethickness#)/2,(noteheight#+stafflinethickness#)/2);
- fill triangle scaled (7h/6) shifted (w/2,-h/6);
- unfill triangle scaled 0.72h shifted (w/2,-h/6);
+ save hei,xs;
+ save llap;
+ save tilt;
+
+ tilt = 40;
+ llap# = 3/4noteheight#;
+
+ xs = 1.5;
+ caveness:=0.1;
+ def_triangle;
+ draw triangle;
fet_endchar;
+
fet_beginchar("Half trianglehead", "1triangle", "halftrianglehead")
- thick := 1.2stafflinethickness;
- set_char_box(0, 2noteheight#/sqrt3*7/8,noteheight#/2,noteheight#/2);
- fill triangle scaled (7h/6) shifted (w/2,-h/6);
- unfill triangle scaled 0.7h shifted (w/2,-h/6);
+ save hei,xs;
+ save llap;
+ save tilt;
+
+ tilt = 40;
+ llap# = 2/3noteheight#;
+ xs = 1.2;
+ caveness:=0.1;
+ def_triangle;
+ draw triangle;
fet_endchar;
+
fet_beginchar("Quart trianglehead", "2triangle", "trianglehead")
- thick := 1.2stafflinethickness;
- set_char_box(0, 2noteheight#/sqrt3*7/8,noteheight#/2,noteheight#/2);
- fill triangle scaled (7h/6) shifted (w/2,-h/6);
+ save hei,xs;
+ save llap;
+ save tilt;
+ tilt = 40;
+ llap# = 2/3noteheight#;
+ xs = 1.0;
+ caveness:=0.1;
+ def_triangle;
+ filldraw triangle;
fet_endchar;
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% slash heads are for indicating improvisation. They are
+% twice as high as normal heads.
+%
+def draw_slash(expr hwid_hash) =
+ save exact_height;
+ save ne_dir;
+ pair ne_dir;
+ exact_height = staff_space# + stafflinethickness#/2;
+
+ set_char_box (0, 2 exact_height / slash_slope + hwid_hash,
+ exact_height, exact_height);
-slw := staff_space;
-slw# := staff_space#;
-slt := 1.25stafflinethickness;
-slt# := 1.25stafflinethickness#;
-slxt = 1.5slt;
-slxt# := 1.5slt#;
-slh := 1.5staff_space;
-slh# := 1.5staff_space#;
+ charwx := charwd;
+ charwy := charht;
+
+ clearxy;
+ pickup pencircle scaled blot_diameter;
+
+ bot y1 = - d;
+ top y2 = h;
+ lft x1 = 0;
+ lft x2 = 2 h / slash_slope;
+
+ rt x3 = w;
+ y3 = y2;
+ y4 = y1;
+ x3- x2 = x4 - x1;
+
+ ne_dir := unitvector( z3 - z4);
+ filldraw z1 --- z2 --- z3 --- z4 --- cycle;
+
+ if hwid_hash > 2 slash_thick#:
+ save th;
+
+ th = slash_thick - blot_diameter;
+ y6 = y7;
+ y5 = y8;
+ y3 - y7 = th;
+ y5 - y1 = th;
+ z6 - z5 = whatever * ne_dir;
+ z8 - z7 = whatever * ne_dir;
+
+ z5 = z1 + whatever * ne_dir + th * (ne_dir rotated -90);
+ z8 = z4 + whatever * ne_dir + th * (ne_dir rotated 90);
+
+ unfill
+ z5 -- z6 -- z7 -- z8 -- cycle;
+ fi
+ labels (range 1 thru 10);
+enddef;
fet_beginchar("Whole slashhead","0slash","wholeslashhead")
- wid := slw#+2slxt#+staff_space#;
- set_char_box(0,wid-stafflinethickness#,slh#/2,slh#/2);
- define_pixels (wid);
- pickup penrazor scaled slxt;
- draw (-b+slxt/2-stafflinethickness/2,-d) -- (-b+slxt/2+slw-stafflinethickness/2,h);
- draw (w-slxt/2-slw+stafflinethickness/2,-d) -- (w-slxt/2+stafflinethickness/2,h);
- pickup penrazor scaled slt rotated 90;
- draw (-b+slxt-stafflinethickness/2,-d+slt/2) -- (w-slw+stafflinethickness/2,-d+slt/2);
- draw (-b+slw-stafflinethickness/2,h-slt/2) -- (w-slxt+stafflinethickness/2,h-slt/2);
+ draw_slash(4 slash_thick# + 0.5 staff_space#);
fet_endchar;
fet_beginchar("Half slashhead","1slash","halfslashhead")
- wid := slw#+2slxt#+0.6staff_space#;
- set_char_box(0,wid-stafflinethickness#,slh#/2,slh#/2);
- define_pixels (wid);
- pickup penrazor scaled slxt;
- draw (b+slxt/2-stafflinethickness/2,-d) -- (b+slxt/2+slw-stafflinethickness/2,h);
- draw (w-slxt/2-slw+stafflinethickness/2,-d) -- (w-slxt/2+stafflinethickness/2,h);
- pickup penrazor scaled slt rotated 90;
- draw (b+slxt-stafflinethickness/2,-d+slt/2) -- (w-slw+stafflinethickness/2,-d+slt/2);
- draw (b+slw-stafflinethickness/2,h-slt/2) -- (w-slxt+stafflinethickness/2,h-slt/2);
+ draw_slash(3.0 slash_thick# + 0.15 staff_space#);
fet_endchar;
fet_beginchar("Quart slashhead","2slash","quartslashhead")
- wid := slw#+slxt#;
- set_char_box(0,slw#+slxt#-stafflinethickness#,slh#/2,slh#/2);
- define_pixels (wid);
- pickup penrazor scaled slxt;
- draw (b+slxt/2-stafflinethickness/2,-d) -- (b+slxt/2+slw-stafflinethickness/2,h);
+ draw_slash(1.5 slash_thick#);
fet_endchar;
-% thick is the distance between the two parallel lines in the cross (distance between centres of lines)
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% thick is the distance between the NE/SW parallel lines in the cross
+% (distance between centres of lines)
+% in stafflinethickness def
+%
def draw_cross(expr thick) =
- pent := 1.2stafflinethickness;
- pickup pencircle scaled pent;
- % alfa is the slant of the lines (i.e. 1 means 45 degrees)
- alfa := (2h-pent)/(w-pent);
- % llen is the length of the little outer lines
- % llen = thick / sin(2atan(alfa))
- llen := thick/(ypart(dir(2angle(1,alfa))));
- xa := llen/sqrt(1+alfa**2);
- ya := xa*alfa;
- xl := w/2-xa-pent/2;
- yl := h-ya-pent/2;
+ save pent, slant, ne_dir;
+ pair ne_dir;
save crz; path crz;
- crz = (xa,0) -- (xa+xl,yl) -- (xl,yl+ya) -- (0,ya);
+
+ pen_thick# := 1.2stafflinethickness#;
+ define_pixels (pen_thick);
+ pickup pencircle scaled pen_thick;
+
+ top y3 = h;
+ ne_dir := unitvector ((1, (2 h -pen_thick)/(w - pen_thick)));
+ rt x4 = w/2;
+ y5 = 0;
+ z4 - z5 = whatever * ne_dir;
+ x6 = 0;
+ z6 - z3 = whatever * ne_dir;
+ z3 - z4 = whatever * (ne_dir yscaled -1);
+
+ z4 - z3 = whatever * (ne_dir) + (ne_dir rotated -90) * thick * stafflinethickness;
+
+ x1 = charwd/2 - .5 pen_thick#;
+ z1 = whatever * ne_dir + thick/2 * stafflinethickness# * (ne_dir rotated -90);
+
+
+ labels (1,2,3,4,5,6);
+
+ crz = (z6 -- z3 -- z4 -- z5) ;
+
draw crz shifted(w/2,0);
draw crz xscaled -1 shifted(w/2,0);
draw crz yscaled -1 shifted(w/2,0);
draw crz scaled -1 shifted(w/2,0);
+
+ charwx := charwd;
+ charwy := y1;
+ message (decimal charwx);
+ message (decimal charwy);
+ z12 = (charwx * hppp, y1 * vppp);
+ labels (12);
enddef;
fet_beginchar("Whole Crossed notehead", "0cross", "wholecrossedhead")
wid# := black_notehead_width#+4stafflinethickness#;
hei# := noteheight#+stafflinethickness#;
set_char_box(0, wid#,hei#/2,hei#/2);
- draw_cross(3.75stafflinethickness);
+
+ draw_cross (3.75);
fet_endchar;
fet_beginchar("Half Crossed notehead", "1cross", "halfcrossedhead")
wid# := black_notehead_width#+2stafflinethickness#;
hei# := noteheight#+stafflinethickness#/2;
set_char_box(0, wid#,hei#/2,hei#/2);
- draw_cross(3stafflinethickness);
+ draw_cross(3.0);
fet_endchar;
fet_beginchar("Crossed notehead", "2cross", "crossedhead")
wid# := black_notehead_width#;
hei# := noteheight#;
set_char_box(0, wid#,hei#/2,hei#/2);
- draw_cross(stafflinethickness/4);
+ draw_cross(1.0);
fet_endchar;
fet_beginchar("X-Circled notehead", "2xcircle", "xcircledhead")
- set_char_box(0, noteheight#+stafflinethickness#,
- noteheight#/2+stafflinethickness#/2,noteheight#/2+stafflinethickness#/2);
- pickup pencircle scaled 1.2stafflinethickness;
- draw fullcircle scaled 2h shifted (h,0);
- pos := h/sqrt2;
- draw (-pos+h,-pos) -- (pos+h,pos);
- draw (-pos+h,pos) -- (pos+h,-pos);
+ wid# := black_notehead_width#*sqrt(sqrt2);
+ hei# := noteheight#*sqrt(sqrt2);
+ set_char_box(0, wid#,hei#/2,hei#/2);
+ cthick := (1.2+1/4)*stafflinethickness;
+ cxr := w/2-cthick/2;
+ cyr := h-cthick/2;
+ pickup pencircle scaled cthick;
+ draw fullcircle xscaled 2cxr yscaled 2cyr shifted (w/2,0);
+ xpos := cxr/sqrt2;
+ ypos := cyr/sqrt2;
+ draw (-xpos+w/2,-ypos) -- (xpos+w/2,ypos);
+ draw (-xpos+w/2,ypos) -- (xpos+w/2,-ypos);
+
+ charwx := charwd ;
+ charwy := 0 ;
+
+ z12 = (charwx * hppp , charwy * vppp );
+ labels (12);
fet_endchar;
+
+
fet_endgroup("noteheads");
+
define_pixels(black_notehead_width);
projects / lilypond.git / blobdiff