-% bolletjes.mf
-% part of LilyPond's pretty-but-neat music font
+% -*-Fundamental-*-
+% feta-bolletjes.mf -- implement noteheads
+%
+% source file of LilyPond's pretty-but-neat music font
+%
+% (c) 1997--2008 Jan Nieuwenhuizen <janneke@gnu.org>
+% & Han-Wen Nienhuys <hanwen@xs4all.nl>
+% & Juergen Reuter <reuter@ipd.uka.de>
+%
+
+test_outlines := 0;
-% most beautiful noteheads are pronounced, not circular,
+
+save remember_pic;
+picture remember_pic;
+
+
+% Most beautiful noteheads are pronounced, not circular,
% and not even symmetric.
-% These examples are inspired by [Wanske], see literature list
+% These examples are inspired by [Wanske]; see literature list.
+
-save black_notehead_width;
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% NOTE HEAD VARIABLES
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+save black_notehead_width, noteheight;
+save half_notehead_width, whole_notehead_width, slash_thick;
+save slash_slope, overdone_heads, solfa_noteheight;
+
+numeric noteheight;
+numeric slash_thick;
numeric black_notehead_width;
+numeric whole_notehead_width;
+numeric half_notehead_width;
+
+
+fet_begingroup ("noteheads");
+
+
+% Slope of slash. From scm/grob-description.scm. How to auto-copy?
+slash_slope := 1.7;
+
+% Thickness of slash lines. Quarter notes get 1.5slt width.
+slash_thick# := 2/3 * 0.48 staff_space#;
+
+
+%
+% 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#;
+
+
+%
+% solfa heads should not overlap on chords.
+%
+solfa_noteheight# := staff_space# - stafflinethickness#;
+
+define_pixels (slash_thick);
+define_whole_vertical_pixels (noteheight);
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% SLANT moves both extrema on the long axis (by SLANT * ELLIPTICITY,
+% so SLANT = -1, puts the extreme on the long axis next to the short
+% axis one).
+%
+
+def draw_outside_ellipse (expr ellipticity, tilt, superness, slant) =
+ save attachment_y;
+ save pat;
+ path pat;
+
+ pat := superellipse ((ellipticity, 0), (-slant * ellipticity, 1.0),
+ (-ellipticity, 0), (slant * ellipticity, -1.0),
+ superness);
+ pat := pat rotated tilt;
+
+ save top_point, right_point;
+ pair top_point, right_point;
+
+ top_point := directionpoint left of pat;
+ right_point := directionpoint up of pat;
+
+ save scaling, width;
+
+ scaling# = noteheight# / (2 ypart (top_point));
+ width# := 2 xpart (right_point) * scaling#;
+ define_pixels (scaling, width);
+
+ set_char_box (0, width#, noteheight# / 2, noteheight# / 2);
+
+ d := d - feta_space_shift;
+
+ % attachment Y
+ charwy := ypart (right_point) * scaling#;
+ charwx := width#;
+
+ pat := pat scaled scaling shifted (w / 2, .5 (h - d));
+
+ width := hround width;
+
+ if test_outlines = 1:
+ draw pat;
+ else:
+ fill pat;
+ fi;
+enddef;
+
+
+def undraw_inside_ellipse (expr ellipticity, tilt, superness, clearance) =
+begingroup
+ save pat;
+ path pat;
+
+ pat := superellipse ((ellipticity, 0), (0, 1.0),
+ (-ellipticity, 0), (0, -1.0),
+ superness);
+ pat := pat rotated tilt;
+
+ save top_point, right_point;
+ pair top_point, right_point;
+
+ top_point := directionpoint left of pat;
+ right_point := directionpoint up of pat;
+
+ save height, scaling;
+
+ height# = staff_space# + stafflinethickness# - clearance;
+ scaling# = height# / (2 ypart (top_point));
+ define_pixels (scaling);
+ pat := pat scaled scaling shifted (w / 2, .5 (h - d));
+
+ if test_outlines = 1:
+ draw pat;
+ else:
+ unfill pat;
+ fi
+endgroup;
+enddef;
+
+
+%
+% dimensions aren't entirely right.
+%
+def draw_longa (expr up) =
+ save stemthick, fudge;
+
+ stemthick# = 2 stafflinethickness#;
+ define_whole_blacker_pixels (stemthick);
+
+ fudge = hround (blot_diameter / 2);
+
+ draw_outside_ellipse (1.80, 0, 0.707, 0);
+ undraw_inside_ellipse (1.30, 125, 0.68, 2 stafflinethickness#);
+
+ pickup pencircle scaled stemthick;
+
+ if up:
+ bot y1 = -d;
+ top y2 = h;
+ rt x1 - fudge = 0;
+ x1 = x2;
+
+ fudge + lft x3 = w;
+ x4 = x3;
+ top y4 = h + 3.0 staff_space;
+ y3 = y1;
+ else:
+ bot y1 = -d - 3.0 staff_space;
+ top y2 = h;
+ rt x1 - fudge = 0;
+ x1 = x2;
+
+ fudge + lft x3 = w;
+ x4 = x3;
+ y4 = y2;
+ bot y3 = -d;
+ fi;
+
+ draw_gridline (z1, z2, stemthick);
+ draw_gridline (z3, z4, stemthick);
+
+ labels (1, 2, 3, 4);
+enddef;
+
+
+fet_beginchar ("Longa notehead", "uM2");
+ draw_longa (true);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+fet_beginchar ("Longa notehead", "dM2");
+ draw_longa (false);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Longa notehead", "uM2");
+ draw_longa (true);
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+
+ fet_beginchar ("Longa notehead", "dM2");
+ draw_longa (false);
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+%
+% dimensions aren't entirely right.
+%
+def draw_brevis =
+ save stemthick, fudge;
+
+ stemthick# = 2 stafflinethickness#;
+ define_whole_blacker_pixels (stemthick);
+
+ fudge = hround (blot_diameter / 2);
+
+ draw_outside_ellipse (1.80, 0, 0.707, 0);
+ undraw_inside_ellipse (1.30, 125, 0.68, 2 stafflinethickness#);
+
+ pickup pencircle scaled stemthick;
+
+ bot y1 = -d;
+ top y2 = h;
+ rt x1 - fudge = 0;
+ x1 = x2;
+
+ fudge + lft x3 = w;
+ x4 = x3;
+ y4 = y2;
+ y3 = y1;
+
+ draw_gridline (z1, z2, stemthick);
+ draw_gridline (z3, z4, stemthick);
+enddef;
+
+
+fet_beginchar ("Brevis notehead", "sM1");
+ draw_brevis;
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Brevis notehead", "sM1");
+ draw_brevis;
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+fet_beginchar ("Whole notehead", "s0");
+ 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#);
+
+ whole_notehead_width# := charwd;
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Whole notehead", "s0");
+ 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#);
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+fet_beginchar ("Half notehead", "s1");
+ 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#);
+
+ half_notehead_width# := charwd;
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Half notehead", "s1");
+ 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#);
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+fet_beginchar ("Quart notehead", "s2");
+ % used to have 32. With 31, they are slightly bolder.
+ draw_outside_ellipse (1.49 - puff_up_factor / 3.0, 31, 0.707, 0);
+ black_notehead_width# := charwd;
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Quart notehead", "s2");
+ draw_outside_ellipse (1.49 - puff_up_factor / 3.0, 31,
+ 0.707, 0);
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+
+fet_beginchar ("Whole diamondhead", "s0diamond");
+ draw_outside_ellipse (1.80, 0, 0.495, 0);
+ undraw_inside_ellipse (1.30, 125, 0.6,
+ .4 staff_space# + stafflinethickness#);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Whole diamondhead", "s0diamond");
+ draw_outside_ellipse (1.80, 0, 0.495, 0);
+ undraw_inside_ellipse (1.30, 125, 0.6,
+ .4 staff_space# + stafflinethickness#);
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+fet_beginchar ("Half diamondhead", "s1diamond");
+ draw_outside_ellipse (1.50, 34, 0.49, 0.17);
+ undraw_inside_ellipse (3.5, 33, 0.80,
+ .3 staff_space# + 1.5 stafflinethickness#);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Half diamondhead", "s1diamond");
+ draw_outside_ellipse (1.50, 34, 0.49, 0.17);
+ undraw_inside_ellipse (3.5, 33, 0.80,
+ .3 staff_space#
+ + 1.5 stafflinethickness#);
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+fet_beginchar ("Quart diamondhead", "s2diamond");
+ draw_outside_ellipse (1.80, 35, 0.495, -0.25);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Quart diamondhead", "s2diamond");
+ draw_outside_ellipse (1.80, 35, 0.495, -0.25);
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+
+vardef penposx@# (expr d) =
+begingroup;
+ save pat;
+ path pat;
+
+ pat = top z@#
+ .. lft z@#
+ .. bot z@#
+ .. rt z@#
+ .. cycle;
+ z@#l = pat intersectionpoint (z@# -- infinity * dir (d + 180));
+ z@#r = pat intersectionpoint (z@# -- infinity * dir (d));
+endgroup
+enddef;
+
+
+%
+% UGH: xs not declared as argument.
+%
+def define_triangle_shape (expr stemdir) =
+ save triangle_a, triangle_b, triangle_c;
+ save triangle_out_a, triangle_out_b, triangle_out_c;
+ save triangle_in, triangle_out;
+ save width, depth, height;
+ save origin, left_up_dir;
+ save exact_left_point, exact_right_point, exact_down_point;
+
+ path triangle_a, triangle_b, triangle_c;
+ path triangle_out_a, triangle_out_b, triangle_out_c;
+ path triangle_in, triangle_out;
+ pair origin, left_up_dir;
+ pair exact_down_point, exact_left_point, exact_right_point;
+
+ save pen_thick;
+ pen_thick# = stafflinethickness# + .1 staff_space#;
+ define_pixels (llap);
+ define_blacker_pixels (pen_thick);
+
+ left_up_dir = llap# * dir (90 + tilt);
+
+ xpart (left_up_dir) * xs - (pen_thick# * xs) / 2 + xpart origin = 0;
+ ypart origin = 0;
+
+ exact_left_point := origin + (left_up_dir xscaled xs);
+ exact_down_point := origin + (left_up_dir rotated 120 xscaled xs);
+ exact_right_point := origin + (left_up_dir rotated 240 xscaled xs);
+
+ height# = ypart (exact_left_point + origin) + pen_thick# / 2;
+ depth# = -ypart (exact_down_point + origin) + pen_thick# / 2;
+ width# = xpart (exact_right_point - exact_left_point)
+ + pen_thick# * xs;
+
+ set_char_box (0, width#, depth#, height#);
+
+ % Formerly, the shape has simply been drawn with an elliptical pen
+ % (`scaled pen_thick xscaled xs'), but the envelope of such a curve
+ % is of 6th degree. For the sake of mf2pt1, we approximate it.
+
+ pickup pencircle scaled pen_thick xscaled xs;
+
+ z0 = (hround_pixels (xpart origin), 0);
+
+ z1 = z1' = z0 + llap * dir (90 + tilt) xscaled xs;
+ z2 = z2' = z0 + llap * dir (90 + tilt + 120) xscaled xs;
+ z3 = z3' = z0 + llap * dir (90 + tilt + 240) xscaled xs;
+
+ z12 = caveness [.5[z1, z2], z3];
+ z23 = caveness [.5[z2, z3], z1];
+ z31 = caveness [.5[z3, z1], z2];
+
+ triangle_a = z1 .. z12 .. z2;
+ triangle_b = z2 .. z23 .. z3;
+ triangle_c = z3 .. z31 .. z1;
+
+ penposx1 (angle (direction 0 of triangle_a) - 90);
+ penposx2 (angle (direction 0 of triangle_b) - 90);
+ penposx3 (angle (direction 0 of triangle_c) - 90);
+
+ penposx1' (angle (direction infinity of triangle_c) + 90);
+ penposx2' (angle (direction infinity of triangle_a) + 90);
+ penposx3' (angle (direction infinity of triangle_b) + 90);
+
+ penposx12 (angle (z12 - z0));
+ penposx23 (angle (z23 - z0));
+ penposx31 (angle (z31 - z0));
+
+ z10 = (z0 -- z1) intersectionpoint (z1l .. z12l .. z2'r);
+ z20 = (z0 -- z2) intersectionpoint (z2l .. z23l .. z3'r);
+ z30 = (z0 -- z3) intersectionpoint (z3l .. z31l .. z1'r);
+
+ triangle_in = z10
+ .. z12l
+ .. z20
+ & z20
+ .. z23l
+ .. z30
+ & z30
+ .. z31l
+ .. z10
+ & cycle;
+
+ triangle_out_a = z1r .. z12r .. z2'l;
+ triangle_out_b = z2r .. z23r .. z3'l;
+ triangle_out_c = z3r .. z31r .. z1'l;
+
+ triangle_out = top z1
+ .. lft z1
+ .. z1r{direction 0 of triangle_out_a}
+ & triangle_out_a
+ & {direction infinity of triangle_out_a}z2'l
+ .. lft z2
+ .. bot z2
+ .. z2r{direction 0 of triangle_out_b}
+ & triangle_out_b
+ & {direction infinity of triangle_out_b}z3'l
+ .. rt z3
+ .. top z3
+ .. z3r{direction 0 of triangle_out_c}
+ & triangle_out_c
+ & {direction infinity of triangle_out_c}z1'l
+ .. cycle;
+
+ labels (0, 10, 20, 30);
+ penlabels (1, 1', 2, 2', 3, 3', 12, 23, 31);
+
+ % attachment Y
+ if stemdir = 1:
+ charwy := ypart exact_right_point;
+ charwx := xpart exact_right_point + .5 pen_thick# * xs;
+ else:
+ charwy := -ypart exact_down_point;
+ charwx := width# - (xpart exact_down_point - .5 pen_thick# * xs);
+ fi
+enddef;
+
+
+def draw_whole_triangle_head =
+ save hei, xs;
+ save llap;
+ save tilt;
+
+ tilt = 40;
+ llap# = 3/4 noteheight#;
+
+ xs = 1.5;
+ caveness := 0.1;
+ define_triangle_shape (1);
+ fill triangle_out;
+ unfill triangle_in;
+enddef;
+
+
+fet_beginchar ("Whole trianglehead", "s0triangle");
+ draw_whole_triangle_head;
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Whole trianglehead", "s0triangle");
+ draw_whole_triangle_head;
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+def draw_small_triangle_head (expr dir) =
+ save hei, xs;
+ save llap;
+ save tilt;
+
+ tilt = 40;
+ llap# = 2/3 noteheight#;
+ xs = 1.2;
+ caveness := 0.1;
+ define_triangle_shape (dir);
+
+ pickup feta_fillpen;
+
+ filldraw triangle_out;
+ unfilldraw triangle_in;
+enddef;
+
+
+fet_beginchar ("Half trianglehead (downstem)", "d1triangle");
+ draw_small_triangle_head (-1);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+fet_beginchar ("Half trianglehead (upstem)", "u1triangle");
+ draw_small_triangle_head (1);
+
+ draw_staff (-2, 2, 0.5);
+fet_endchar;
+
+
+def draw_closed_triangle_head (expr dir) =
+ save hei, xs;
+ save llap;
+ save tilt;
+
+ tilt = 40;
+ llap# = 2/3 noteheight#;
+ xs = 1.0;
+ caveness := 0.1;
+ define_triangle_shape (dir);
+ fill triangle_out;
+enddef;
+
+
+fet_beginchar ("Quart trianglehead (upstem)", "u2triangle");
+ draw_closed_triangle_head (1);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+fet_beginchar ("Quart trianglehead (downstem)", "d2triangle");
+ draw_closed_triangle_head (-1);
+
+ draw_staff (-2, 2, 0.5);
+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, nw_dist;
+ pair ne, nw_dist;
+ exact_height = staff_space# + stafflinethickness# / 2;
+
+ set_char_box (0, 2 exact_height / slash_slope + hwid_hash,
+ exact_height, exact_height);
+
+ charwx := charwd;
+ charwy := charht;
+
+ clearxy;
+
+ d := d - feta_shift;
+
+ 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 = unitvector (z3 - z4);
+ nw_dist = (ne rotated 90) * 0.5 blot_diameter;
+
+ fill bot z1{left}
+ .. (z1 + nw_dist){ne}
+ -- (z2 + nw_dist){ne}
+ .. top z2{right}
+ -- top z3{right}
+ .. (z3 - nw_dist){-ne}
+ -- (z4 - nw_dist){-ne}
+ .. bot z4{left}
+ -- 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;
+ z8 - z7 = whatever * ne;
+
+ z5 = z1 + whatever * ne + th * (ne rotated -90);
+ z8 = z4 + whatever * ne + th * (ne rotated 90);
+
+ unfill z5
+ -- z6
+ -- z7
+ -- z8
+ -- cycle;
+ fi
+ labels (range 1 thru 10);
+enddef;
+
+
+fet_beginchar ("Whole slashhead", "s0slash");
+ draw_slash (4 slash_thick# + 0.5 staff_space#);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+fet_beginchar ("Half slashhead", "s1slash");
+ draw_slash (3.0 slash_thick# + 0.15 staff_space#);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+fet_beginchar ("Quart slashhead", "s2slash");
+ draw_slash (1.5 slash_thick#);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% `thick' is the distance between the NE/SW parallel lines in the cross
+% (distance between centres of lines) in multiples of stafflinethickness
+%
+def draw_cross (expr thick) =
+ save ne, nw;
+ save ne_dist, nw_dist, rt_dist, up_dist;
+ save crz_in, crz_out;
+ save thickness;
+ pair ne, nw;
+ pair ne_dist, nw_dist, rt_dist, up_dist;
+ path crz_in, crz_out;
+
+ pen_thick# := 1.2 stafflinethickness#;
+ thickness# := thick * stafflinethickness#;
+ define_pixels (thickness);
+ define_blacker_pixels (pen_thick);
+
+ pickup pencircle scaled pen_thick;
+
+ h := h - feta_shift;
+
+ top y3 = h;
+ ne = unitvector ((1, (2 h - pen_thick) / (w - pen_thick)));
+ rt x4 = w / 2;
+ y5 = 0;
+ z4 - z5 = whatever * ne;
+ x6 = 0;
+ z6 - z3 = whatever * ne;
+ z3 - z4 = whatever * (ne yscaled -1);
+
+ z4 - z3 = whatever * (ne) + (ne rotated -90) * thickness;
+
+
+ x1 = charwd / 2 - .5 pen_thick#;
+ z1 = whatever * ne
+ + thick / 2 * stafflinethickness# * (ne rotated -90);
+
+ % labels (1, 2, 3, 4, 5, 6);
+
+ nw = unitvector (z3 - z4);
+
+ up_dist = up * 0.5 pen_thick / cosd (angle (ne));
+ rt_dist = right * 0.5 pen_thick / sind (angle (ne));
+ nw_dist = (ne rotated 90) * 0.5 pen_thick;
+ ne_dist = (nw rotated -90) * 0.5 pen_thick;
+
+ x4' := x4;
+ x5' := x5;
+ y6' := y6;
+
+ x4 := hround (x4' + .5 pen_thick) - .5 pen_thick;
+ x5 := hfloor (x5' + xpart rt_dist) - xpart rt_dist;
+ y6 := vfloor (y6' + ypart up_dist) - ypart up_dist;
+
+ crz_out = (z6 + up_dist)
+ -- (z3 + nw_dist){ne}
+ .. (top z3)
+ .. (z3 + ne_dist){-nw}
+ -- (z4 + ne_dist){-nw}
+ .. (rt z4)
+ .. (z4 - nw_dist){-ne}
+ -- (z5 + rt_dist);
+ crz_out := crz_out shifted (0, feta_shift)
+ -- reverse crz_out yscaled -1 shifted (0, -feta_eps);
+ fill crz_out
+ -- reverse crz_out xscaled -1 shifted (-feta_eps, 0)
+ -- cycle;
+
+ if (thick > 1):
+ x4 := hround (x4' - xpart rt_dist) + xpart rt_dist;
+ x5 := hceiling (x5' - .5 pen_thick) + .5 pen_thick;
+ y6 := vfloor (y6' - .5 pen_thick) + .5 pen_thick;
+
+ crz_in = (bot z6){right}
+ .. (z6 - nw_dist){ne}
+ -- (z3 - up_dist)
+ -- (z4 - rt_dist)
+ -- (z5 + nw_dist){-ne}
+ .. {down}(lft z5);
+ crz_in := crz_in shifted (0, feta_shift)
+ -- reverse crz_in yscaled -1 shifted (0, -feta_eps);
+ unfill crz_in
+ -- reverse crz_in xscaled -1 shifted (-feta_eps, 0)
+ -- cycle;
+ fi
+
+ % ugh
+ currentpicture := currentpicture shifted (hround (w / 2), 0);
+
+ charwx := charwd;
+ charwy := y1 + feta_shift;
+
+ z12 = (charwx * hppp, y1 * vppp);
+
+ labels (12);
+enddef;
+
+
+fet_beginchar ("Whole Crossed notehead", "s0cross");
+ save wid, hei;
+
+ wid# := black_notehead_width# + 4 stafflinethickness#;
+ hei# := noteheight# + stafflinethickness#;
+
+ set_char_box (0, wid#, hei# / 2, hei# / 2);
+
+ draw_cross (3.75);
+
+ remember_pic := currentpicture;
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Whole Crossed notehead", "s0cross");
+ save wid, hei;
+
+ wid# := black_notehead_width# + 4 stafflinethickness#;
+ hei# := noteheight# + stafflinethickness#;
+
+ set_char_box (0, wid#, hei# / 2, hei# / 2);
+
+ currentpicture := remember_pic;
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+fet_beginchar ("Half Crossed notehead", "s1cross");
+ save wid, hei;
+
+ wid# := black_notehead_width# + 2 stafflinethickness#;
+ hei# := noteheight# + stafflinethickness# / 2;
+
+ set_char_box (0, wid#, hei# / 2, hei# / 2);
+
+ draw_cross (3.0);
+
+ remember_pic := currentpicture;
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Half Crossed notehead", "s1cross");
+ save wid, hei;
+
+ wid# := black_notehead_width# + 2 stafflinethickness#;
+ hei# := noteheight# + stafflinethickness# / 2;
+
+ set_char_box (0, wid#, hei# / 2, hei# / 2);
+
+ currentpicture := remember_pic;
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+fet_beginchar ("Crossed notehead", "s2cross");
+ wid# := black_notehead_width#;
+ hei# := noteheight#;
+ set_char_box (0, wid#, hei# / 2, hei# / 2);
+
+ draw_cross (1.0);
+
+ remember_pic := currentpicture;
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Crossed notehead", "s2cross");
+ wid# := black_notehead_width#;
+ hei# := noteheight#;
+ set_char_box (0, wid#, hei# / 2, hei# / 2);
+
+ currentpicture := remember_pic;
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+fet_beginchar ("X-Circled notehead", "s2xcircle");
+ save wid, hei;
+ save cthick, cxd, cyd, dy;
+
+ wid# := black_notehead_width# * sqrt (sqrt2);
+ hei# := noteheight# * sqrt (sqrt2);
+
+ set_char_box (0, wid#, hei# / 2, hei# / 2);
+
+ d := d - feta_space_shift;
+
+ cthick# := (1.2 + 1/4) * stafflinethickness#;
+ define_blacker_pixels (cthick);
+
+ cxd := w - cthick;
+ cyd := h + d - cthick / 2;
+
+ dy = .5 (h - d);
+
+ pickup pencircle scaled cthick;
+
+ fill fullcircle xscaled (cxd + cthick)
+ yscaled (cyd + cthick)
+ shifted (w / 2, dy);
+ unfill fullcircle xscaled (cxd - cthick)
+ yscaled (cyd - cthick)
+ shifted (w / 2, dy);
+
+ xpos := .5 cxd / sqrt2;
+ ypos := .5 cyd / sqrt2;
+
+ pickup penrazor scaled cthick rotated (angle (xpos, ypos) + 90);
+ draw (-xpos + w / 2, -ypos + dy) -- (xpos + w / 2, ypos + dy);
+
+ pickup penrazor scaled cthick rotated (angle (xpos, -ypos) + 90);
+ draw (-xpos + w / 2, ypos + dy) -- (xpos + w / 2, -ypos + dy);
+
+ charwx := charwd;
+ charwy := 0;
+
+ z12 = (charwx * hppp, charwy * vppp);
+ labels (12);
+
+ remember_pic := currentpicture;
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("X-Circled notehead", "s2xcircle");
+ save wid, hei;
+ save cthick, cxr, cyr;
+
+ wid# := black_notehead_width# * sqrt (sqrt2);
+ hei# := noteheight# * sqrt (sqrt2);
+
+ set_char_box (0, wid#, hei# / 2, hei# / 2);
+
+ currentpicture := remember_pic;
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+%%%%%%%%
+%
+% SOLFA SHAPED NOTES
+%
+
+save solfa_pen_thick;
+solfa_pen_thick# = 1.75 stafflinethickness#;
+define_blacker_pixels (solfa_pen_thick);
+
+
+save solfa_base_notewidth;
+solfa_base_notewidth# := black_notehead_width#;
+
+solfa_whole_width := whole_notehead_width# / black_notehead_width#;
+solfa_half_width := half_notehead_width# / black_notehead_width#;
+solfa_quarter_width := 1.0;
+
+def draw_do_head (expr width_factor, dir) =
+ save p_in, p_out;
+ save left_dist, right_dist;
+ path p_in, p_out;
+ pair left_dist, right_dist;
+
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+
+ pickup pencircle scaled solfa_pen_thick;
+
+ bot y1 = -d;
+ y1 = y2;
+ lft x1 = 0;
+ rt x2 = w;
+ top y3 = h;
+ x3 =.5 [x1, x2];
+
+ left_dist = (unitvector (z3 - z1) rotated 90) * 0.5 solfa_pen_thick;
+ right_dist = (unitvector (z2 - z3) rotated 90) * 0.5 solfa_pen_thick;
+
+ p_in := (((z1 - left_dist) -- (z3 - left_dist)) intersectionpoint
+ (top z1 -- top z2))
+ -- ((top z1 -- top z2) intersectionpoint
+ ((z2 - right_dist) -- (z3 - right_dist)))
+ -- (((z2 - right_dist) -- (z3 - right_dist)) intersectionpoint
+ ((z1 - left_dist) -- (z3 - left_dist)))
+ -- cycle;
+
+ p_out := bot z1
+ -- bot z2{right}
+ .. rt z2{up}
+ .. (z2 + right_dist){z3 - z2}
+ -- (z3 + right_dist){z3 - z2}
+ .. top z3{left}
+ .. (z3 + left_dist){z1 - z3}
+ -- (z1 + left_dist){z1 - z3}
+ .. lft z1{down}
+ .. {right}cycle;
+
+
+ labels (1, 2, 3);
+
+ charwx := charwd;
+ charwy := -chardp + 0.5 stafflinethickness#;
+ if dir = -1:
+ charwy := -charwy;
+ fi;
+enddef;
+
+
+fet_beginchar ("Whole dohead", "s0do");
+ draw_do_head (solfa_whole_width, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half dohead", "d1do");
+ draw_do_head (solfa_half_width, -1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half dohead", "u1do");
+ draw_do_head (solfa_half_width, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quart dohead", "d2do");
+ draw_do_head (solfa_quarter_width, -1);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quart dohead", "u2do");
+ draw_do_head (solfa_quarter_width, 1);
+ fill p_out;
+fet_endchar;
+
+
+%
+% re - flat top, curved bottom:
+% (0,h/2) {dir -90} .. (w/2,-h/2) .. {dir 90} (w,h/2) -- cycle;
+% (broader along the base and with more vertical sides for half and
+% whole notes)
+% stem attachment: h/2
+%
+
+def draw_re_head (expr width_factor, dir) =
+ save p_in, p_out;
+ path p_in, p_out;
+
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+
+ pickup pencircle scaled solfa_pen_thick;
+
+ save curve_start;
+ curve_start = 0.7;
+ lft x1 = 0;
+ y1 = y5;
+ x1 = x2;
+ y2 = curve_start [y3, y1];
+ bot y3 = -d;
+ x3 = .5 [x2, x4];
+ rt x4 = w;
+ y4 = y2;
+ top y5 = h;
+ x5 = x4;
+
+ labels (range 1 thru 5);
+
+ p_in := (z1 + 0.5 solfa_pen_thick * (1, -1))
+ -- rt z2{down}
+ .. top z3
+ .. lft z4{up}
+ -- (z5 + 0.5 solfa_pen_thick * (-1, -1))
+ -- cycle;
+
+ p_out := lft z1
+ -- lft z2{down}
+ .. bot z3
+ .. rt z4{up}
+ -- rt z5{up}
+ .. top z5{left}
+ -- top z1{left}
+ .. {down}cycle;
+
+ charwx := charwd;
+ charwy := curve_start [-chardp, charht];
+
+ if dir = -1:
+ charwy := -charwy;
+ fi;
+enddef;
+
+
+fet_beginchar ("Whole rehead", "s0re");
+ draw_re_head (solfa_whole_width, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up rehead", "u1re");
+ draw_re_head (solfa_half_width, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down rehead", "d1re");
+ draw_re_head (solfa_half_width, -1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quart rehead", "u2re");
+ draw_re_head (solfa_quarter_width, 1);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quart rehead", "d2re");
+ draw_re_head (solfa_quarter_width, -1);
+ fill p_out;
+fet_endchar;
+
+
+def draw_mi_head (expr width_factor) =
+ save path_out, path_in;
+ save ne_dist, se_dist, ne, se;
+ path path_out, path_in;
+ pair ne_dist, se_dist, ne, se;
+
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+
+ pickup pencircle scaled solfa_pen_thick;
+
+ lft x1 = 0;
+ y1 = 0;
+ bot y2 = -d;
+ x2 = .5 [x1, x3];
+ rt x3 = w;
+ x4 = x2;
+ y3 = y1;
+ top y4 = h;
+
+ z6 - z5 = whatever * (z2 - z1);
+ z8 - z7 = whatever * (z2 - z1);
+ z8 - z5 = whatever * (z4 - z1);
+ z6 - z7 = whatever * (z4 - z1);
+
+ ne = unitvector (z4 - z1);
+ se = unitvector (z1 - z2);
+
+ ne_dist = (ne rotated 90) * 0.5 solfa_pen_thick;
+ se_dist = (se rotated 90) * 0.5 solfa_pen_thick;
+
+ z5 = whatever [z1, z4] - ne_dist;
+ z5 = whatever [z1, z2] - 1.5 se_dist;
+
+ z5 - z1 = -(z7 - z3);
+
+ labels (range 1 thru 8);
+
+ path_in := z5
+ -- z6
+ -- z7
+ -- z8
+ -- cycle;
+
+ path_out := lft z1
+ .. (z1 + se_dist){-se}
+ -- (z2 + se_dist){-se}
+ .. bot z2
+ .. (z2 - ne_dist){ne}
+ -- (z3 - ne_dist){ne}
+ .. rt z3
+ .. (z3 - se_dist){se}
+ -- (z4 - se_dist){se}
+ .. top z4
+ .. (z4 + ne_dist){-ne}
+ -- (z1 + ne_dist){-ne}
+ .. cycle;
+enddef;
+
+
+fet_beginchar ("Whole mihead", "s0mi");
+ draw_mi_head (solfa_whole_width);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Half mihead", "s1mi");
+ draw_mi_head (solfa_quarter_width);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Quart mihead", "s2mi");
+ draw_mi_head (solfa_quarter_width);
+ fill path_out;
+fet_endchar;
+
+
+def draw_fa_head (expr width_factor) =
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+
+ save p_down_in, p_down_out, p_up_in, p_up_out, nw_dist, nw;
+ path p_down_in, p_down_out, p_up_in, p_up_out;
+ pair nw_dist, nw;
+
+ pickup pencircle scaled solfa_pen_thick;
+
+ lft x1 = 0;
+ top y1 = h;
-fet_begingroup("balls");
-
-noteheight#:=interline#+ (1 + overdone_heads) *stafflinethickness#;
-define_pixels(noteheight);
-brevis_wid# := 2 interline#;
-
-def draw_brevis(expr brevwid) =
- save beamheight, head_width;
- save holeheight, stem_width;
- save serif_size, serif_protrude;
-
- head_width# = brevwid;
- holeheight = 3 stafflinethickness;
- stem_width = 1.4 stafflinethickness;
-
-
- 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;
- addto currentpicture also currentpicture reflectedabout(z4r, z4l);
-enddef;
-
-save uitsteek;
- uitsteek = .25;
-def draw_ledger(expr wid)=
- set_char_box(uitsteek * wid, (1+ uitsteek)*wid,
- ledgerlinethickness#/2,ledgerlinethickness#/2);
- pickup pencircle scaled ledgerlinethickness;
rt x2 = w;
- lft x1 = -b;
- y1 = y2 = 0;
- draw z1 .. z2;
-enddef;
-
-fet_beginchar("Brevis notehead", "-1", "brevisball")
- draw_brevis(brevis_wid#);
-fet_endchar;
-fet_beginchar("Brevis ledger", "-1l", "brevisledger")
- draw_ledger(brevis_wid#);
-fet_endchar;
-
-%
-% Some sources (eg Musix/OpusTeX think that the appendage should be on
-% the right, my only other ref [Willemze], shows an appendage to the left
-%
-fet_beginchar("Longa notehead", "-2", "longaball");
- draw_brevis(brevis_wid#);
- save theta;
- z7 = z5;
- z6 - z7 = (-stem_width/2, -interline);
- 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);
-fet_endchar;
-fet_beginchar("Longa ledger", "-2l", "longaledger")
- draw_ledger(brevis_wid#);
-fet_endchar;
-
-
-% 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;
-
-% whole note
-% Wanske, p.38
-fet_beginchar("Whole notehead", "0", "wholeball")
- 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;
-fet_endchar;
-
-
-fet_beginchar("Whole ledger line", "0l", "wholeledger")
- draw_ledger(whole_notehead_width#);
-fet_endchar;
-
-% half note
-% Wanske, p.39
-fet_beginchar("Half notehead", "1",
- "halfball")
- 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;
-
- notehead_calc;
- half_notehead_width# := wd#;
- notehead_draw;
-fet_endchar;
-
-
-fet_beginchar("Half ledger", "1l", "halfledger")
- draw_ledger(half_notehead_width#);
-fet_endchar;
-
-% quarter note
-% Wanske p.38
-fet_beginchar("Quart notehead", "2", "quartball")
- 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;
-
-
-fet_beginchar("Quart ledger", "2l", "quartledger")
- draw_ledger(black_notehead_width#);
-fet_endchar;
-
-fet_endgroup("balls");
-
-define_pixels(black_notehead_width);
+ y2 = y1;
+ bot y3 = -d;
+ x3 = x2;
+
+ y4 = y3;
+ x4 = x1;
+
+ labels (1, 2, 3, 4);
+
+ nw = unitvector (z1 - z3);
+ nw_dist = (nw rotated 90) * 0.5 solfa_pen_thick;
+
+ p_up_in := (((z1 - nw_dist) -- (z3 - nw_dist)) intersectionpoint
+ (bot z1 -- bot z2))
+ -- (((z1 - nw_dist) -- (z3 - nw_dist)) intersectionpoint
+ (lft z3 -- lft z2))
+ -- (z2 + 0.5 solfa_pen_thick * (-1, -1))
+ -- cycle;
+
+ p_up_out := lft z1{down}
+ .. (z1 + nw_dist){-nw}
+ -- (z3 + nw_dist){-nw}
+ .. bot z3{right}
+ .. rt z3{up}
+ -- rt z2{up}
+ .. top z2{left}
+ -- top z1{left}
+ .. {down}cycle;
+
+ p_down_in := p_up_in rotated 180 shifted (w, 0);
+ p_down_out := p_up_out rotated 180 shifted (w, 0);
+
+ charwy := 0.0;
+ charwx := charwd;
+enddef;
+
+
+fet_beginchar ("Whole fa up head", "u0fa");
+ draw_fa_head (solfa_whole_width);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Whole fa down head", "d0fa");
+ draw_fa_head (solfa_whole_width);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("half fa up head", "u1fa");
+ draw_fa_head (solfa_half_width);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Half fa down head", "d1fa");
+ draw_fa_head (solfa_half_width);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter fa up head", "u2fa");
+ draw_fa_head (solfa_quarter_width);
+ fill p_up_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter fa down head", "d2fa");
+ draw_fa_head (solfa_quarter_width);
+ fill p_down_out;
+fet_endchar;
+
+
+def draw_la_head (expr width_factor) =
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+ save p_in, p_out;
+ path p_in, p_out;
+
+ pickup pencircle scaled solfa_pen_thick;
+
+ lft x1 = 0;
+ top y1 = h;
+
+ rt x2 = w;
+ y2 = y1;
+ bot y3 = -d;
+ x3 = x2;
+
+ y4 = y3;
+ x4 = x1;
+
+ labels (range 1 thru 4);
+
+ p_in := (z1 + 0.5 solfa_pen_thick * (1, -1))
+ -- (z2 + 0.5 solfa_pen_thick * (-1, -1))
+ -- (z3 + 0.5 solfa_pen_thick * (-1, 1))
+ -- (z4 + 0.5 solfa_pen_thick * (1, 1))
+ -- cycle;
+
+ p_out := top z1
+ -- top z2{right}
+ .. rt z2{down}
+ -- rt z3{down}
+ .. bot z3{left}
+ -- bot z4{left}
+ .. lft z4{up}
+ -- lft z1{up}
+ .. cycle;
+enddef;
+
+
+fet_beginchar ("Whole lahead", "s0la");
+ draw_la_head (solfa_whole_width);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half lahead", "s1la");
+ draw_la_head (solfa_half_width);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quart lahead", "s2la");
+ draw_la_head (solfa_quarter_width);
+ fill p_out;
+fet_endchar;
+
+
+def draw_ti_head (expr width_factor, dir) =
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+ save p_in, p_out, p_top;
+ save nw_dist, sw_dist, nw, sw;
+ path p_in, p_out, p_top;
+ pair nw_dist, sw_dist, nw, sw;
+ save cone_height;
+ cone_height = 0.64;
+
+ pickup pencircle scaled solfa_pen_thick;
+
+ x1 = .5 [x2, x4];
+ bot y1 = -d;
+ lft x2 = 0;
+ y2 = cone_height [y1, y3];
+ rt x4 = w;
+ y4 = y2;
+ x3 = x1;
+ top y3 = h;
+
+ labels (range 1 thru 4);
+
+ nw = unitvector (z2 - z1);
+ sw = unitvector (z1 - z4);
+
+ nw_dist = (nw rotated 90) * 0.5 solfa_pen_thick;
+ sw_dist = (sw rotated 90) * 0.5 solfa_pen_thick;
+
+ p_top := (z2 - sw_dist)
+ .. (top z3){right}
+ .. (z4 - nw_dist);
+
+ p_in := (((z1 - nw_dist) -- (z2 - nw_dist)) intersectionpoint
+ ((z1 - sw_dist) -- (z4 - sw_dist)))
+ -- (((z1 - nw_dist) -- (z2 - nw_dist)) intersectionpoint
+ ((z2 + sw_dist) .. {right}(bot z3)))
+ .. bot z3
+ .. (((bot z3){right} .. (z4 + nw_dist)) intersectionpoint
+ ((z1 - sw_dist) -- (z4 - sw_dist)))
+ -- cycle;
+
+ p_out := bot z1
+ .. (z1 + nw_dist)
+ -- (z2 + nw_dist)
+ .. lft z2
+ .. (z2 - sw_dist){direction 0 of p_top}
+ & p_top
+ & {direction infinity of p_top}(z4 - nw_dist)
+ .. rt z4
+ .. (z4 + sw_dist)
+ -- (z1 + sw_dist)
+ .. cycle;
+
+ charwx := charwd;
+ charwy := cone_height [-chardp, charht];
+ if dir = -1:
+ charwy := -charwy;
+ fi;
+enddef;
+
+
+fet_beginchar ("Whole up tihead", "s0ti");
+ draw_ti_head (solfa_whole_width, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up tihead", "u1ti");
+ draw_ti_head (solfa_half_width, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down tihead", "d1ti");
+ draw_ti_head (solfa_half_width, -1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quart up tihead", "u2ti");
+ draw_ti_head (solfa_quarter_width, 1);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quart down tihead", "d2ti");
+ draw_ti_head (solfa_quarter_width, -1);
+ fill p_out;
+fet_endchar;
+
+
+fet_endgroup ("noteheads");
+
+
+%
+% we derive black_notehead_width# from the quarter head,
+% so we have to define black_notehead_width (pixel qty)
+% after the black_notehead_width# itself.
+%
+% Let's keep it outside the group as well.
+%
+
+define_pixels (black_notehead_width);
projects / lilypond.git / blobdiff