--- /dev/null
+% Feta (not the Font-En-Tja) music font -- implement noteheads
+% This file is part of LilyPond, the GNU music typesetter.
+%
+% Copyright (C) 1997--2011 Jan Nieuwenhuizen <janneke@gnu.org>
+% & Han-Wen Nienhuys <hanwen@xs4all.nl>
+% & Juergen Reuter <reuter@ipd.uka.de>
+%
+%
+% LilyPond is free software: you can redistribute it and/or modify
+% it under the terms of the GNU General Public License as published by
+% the Free Software Foundation, either version 3 of the License, or
+% (at your option) any later version.
+%
+% LilyPond is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+
+test_outlines := 0;
+
+
+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.
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% 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 (expr linecount) =
+ 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;
+
+ for i := 0 step 1 until linecount - 1:
+ draw_gridline (z1 - (1.5 * i * stemthick, 0),
+ z2 - (1.5 * i * stemthick, 0), stemthick);
+ draw_gridline (z3 + (1.5 * i * stemthick, 0),
+ z4 + (1.5 * i * stemthick, 0), stemthick);
+ endfor;
+enddef;
+
+
+fet_beginchar ("Brevis notehead", "sM1");
+ draw_brevis (1);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Brevis notehead", "sM1");
+ draw_brevis(1);
+
+ draw_staff (-2, 2, 0.5);
+ fet_endchar;
+fi;
+
+
+fet_beginchar ("Double-lined brevis notehead", "sM1double");
+ draw_brevis (2);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Double-lined brevis notehead", "sM1double");
+ draw_brevis (2);
+
+ 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 ("Quarter 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 ("Quarter 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 ("Quarter diamondhead", "s2diamond");
+ draw_outside_ellipse (1.80, 35, 0.495, -0.25);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+if test > 0:
+ fet_beginchar ("Quarter 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 ("Quarter trianglehead (upstem)", "u2triangle");
+ draw_closed_triangle_head (1);
+
+ draw_staff (-2, 2, 0);
+fet_endchar;
+
+
+fet_beginchar ("Quarter 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 ("Quarter 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
+%
+%
+% Note: For whole and half notes, the `fill' curve (p_out) is offset from
+% the points that specify the outer geometry, because we need to add
+% the rounding. In contrast, the inner curve is not offset, because
+% there is no rounding.
+%
+% This means that to get a line of thick_factor * pen_thickness,
+% we need to offset the inner curve by
+%
+% (thick_factor - 0.5) * pen_thickness
+%
+% or by
+%
+% (2 * thick_factor - 1) * half_pen_thickness
+%
+save solfa_pen_thick;
+solfa_pen_thick# = 1.3 stafflinethickness#;
+define_blacker_pixels (solfa_pen_thick);
+
+save solfa_pen_radius;
+solfa_pen_radius = 0.5 solfa_pen_thick;
+
+save solfa_base_notewidth;
+solfa_base_notewidth# := black_notehead_width#;
+
+solfa_whole_width := 1.0;
+solfa_half_width := 1.0;
+solfa_quarter_width := 1.0;
+
+
+%%% Do head
+%
+% Triangle with base parallel to staff lines.
+%
+
+def draw_do_head (expr width_factor, dir, thickness_factor) =
+ save p_in, p_out;
+ save left_dist, right_dist, bottom_dist;
+ path p_in, p_out;
+ pair left_dist, right_dist, bottom_dist;
+
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+
+ bottom_thick_factor := 2 * thickness_factor - 1;
+ % no different thickness for left side if we want uniform thickness
+ if thickness_factor = 1:
+ left_thick_factor := 1;
+ else:
+ left_thick_factor := 0.7 * bottom_thick_factor;
+ fi
+
+ save pen_radius;
+ pen_radius := min (solfa_pen_radius,
+ (h + d) / (3 * (1 + bottom_thick_factor)));
+
+ pickup pencircle scaled (2 * pen_radius);
+
+ 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) * pen_radius;
+ right_dist = (unitvector (z2 - z3) rotated 90) * pen_radius;
+ bottom_dist = (0,1) * pen_radius;
+
+ save pa, pb, pc;
+ path pa, pb, pc;
+ save point_a, point_b, point_c;
+ pair point_a, point_b, point_c;
+
+ pa := (z1 - left_thick_factor * left_dist)
+ -- (z3 - left_thick_factor * left_dist);
+ pb := (z1 + bottom_thick_factor * bottom_dist)
+ -- (z2 + bottom_thick_factor * bottom_dist);
+ pc := (z2 - right_dist)
+ -- (z3 - right_dist);
+
+ point_a := pa intersectionpoint pb;
+ point_b := pb intersectionpoint pc;
+ point_c := pc intersectionpoint pa;
+
+ p_in := point_a
+ -- point_b
+ -- point_c
+ -- 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;
+
+save do_weight;
+do_weight := 2;
+
+
+fet_beginchar ("Whole dohead", "s0do");
+ draw_do_head (solfa_whole_width, 1, do_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half dohead", "d1do");
+ draw_do_head (solfa_half_width, -1, do_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half dohead", "u1do");
+ draw_do_head (solfa_half_width, 1, do_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter dohead", "d2do");
+ draw_do_head (solfa_quarter_width, -1, do_weight);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter dohead", "u2do");
+ draw_do_head (solfa_quarter_width, 1, do_weight);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Whole thin dohead", "s0doThin");
+ draw_do_head (solfa_whole_width, 1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half thin dohead", "d1doThin");
+ draw_do_head (solfa_half_width, -1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half thin dohead", "u1doThin");
+ draw_do_head (solfa_half_width, 1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter thin dohead", "d2doThin");
+ draw_do_head (solfa_quarter_width, -1, 1);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter thin dohead", "u2doThin");
+ draw_do_head (solfa_quarter_width, 1, 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)
+%
+% Note: According to some shape-note singers, there should be no size
+% differences for half and whole notes, contrary to the comment above.
+% Consequently, we have made them all the same width.
+%
+% stem attachment: h/2
+%
+def draw_re_head (expr width_factor, dir, thickness_factor) =
+ 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#);
+
+ save offset;
+ offset = (2 * thickness_factor - 1);
+
+ save curve_start;
+ curve_start = 0.7;
+
+ save pen_radius;
+
+ pen_radius := min (solfa_pen_radius,
+ (h + d) * (1-curve_start) / (1+ offset));
+
+ pickup pencircle scaled (2 * pen_radius);
+
+ lft x1 = 0;
+ top y1 = h;
+ x2 = x1;
+ y2 = curve_start [y3, y1];
+ bot y3 = -d;
+ x3 = .5 [x2, x4];
+ rt x4 = w;
+ y4 = y2;
+ y5 = y1;
+ x5 = x4;
+
+ labels (range 1 thru 5);
+
+ p_in := (z1 + pen_radius * (1, -1 * offset))
+ -- rt z2{down}
+ .. ((top z3) + (0, offset * pen_radius))
+ .. lft z4{up}
+ -- (z5 + pen_radius * (-1, -1 * offset))
+ -- 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;
+
+
+save re_weight;
+re_weight := 2;
+
+fet_beginchar ("Whole rehead", "s0re");
+ draw_re_head (solfa_whole_width, 1, re_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up rehead", "u1re");
+ draw_re_head (solfa_half_width, 1, re_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down rehead", "d1re");
+ draw_re_head (solfa_half_width, -1, re_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter up rehead", "u2re");
+ draw_re_head (solfa_quarter_width, 1, re_weight);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter down rehead", "d2re");
+ draw_re_head (solfa_quarter_width, -1, re_weight);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Whole thin rehead", "s0reThin");
+ draw_re_head (solfa_whole_width, 1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up thin rehead", "u1reThin");
+ draw_re_head (solfa_half_width, 1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down thin rehead", "d1reThin");
+ draw_re_head (solfa_half_width, -1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter thin rehead", "u2reThin");
+ draw_re_head (solfa_quarter_width, 1, 1);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter thin rehead", "d2reThin");
+ draw_re_head (solfa_quarter_width, -1, 1);
+ fill p_out;
+fet_endchar;
+
+
+%%%% mi head -- diamond shape
+%
+% two versions, depending on whether the `strong' lines are on the nw & se
+% or the ne & sw
+%
+def draw_mi_head (expr width_factor, thickness_factor, mirror) =
+ save path_out, path_in;
+ save ne_dist, se_dist, ne, se;
+ save path_a, path_b, path_c, path_d;
+ path path_out, path_in;
+ pair ne_dist, se_dist, ne, se;
+ path path_a, path_b, path_c, path_d;
+ save inner_path;
+ path inner_path;
+
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+
+ save offset;
+ offset := 2 * thickness_factor - 1;
+
+ save note_diagonal;
+
+ note_diagonal := w / 2 ++ (h + d) / 2;
+
+ save pen_radius;
+
+ pen_radius := min (solfa_pen_radius,
+ .3 * note_diagonal / (1 + offset));
+
+ pickup pencircle scaled (2 * pen_radius);
+
+ lft x1 = 0;
+ y1 = 0;
+ bot y2 = -d;
+ x2 = .5 [x1, x3];
+ rt x3 = w;
+ x4 = x2;
+ y3 = y1;
+ top y4 = h;
+
+ % inner sides are parallel to outer sides
+ z6 - z5 = whatever * (z2 - z1);
+ z8 - z7 = whatever * (z4 - z3);
+ z8 - z5 = whatever * (z4 - z1);
+ z7 - z6 = whatever * (z3 - z2);
+
+ ne = unitvector (z4 - z1);
+ se = unitvector (z2 - z1);
+
+ ne_dist = (ne rotated 90) * pen_radius;
+ se_dist = (se rotated 90) * pen_radius;
+
+ path_a := (z1 + se_dist)
+ -- (z2 + se_dist);
+ path_b := (z2 + (ne_dist * offset))
+ -- (z3 + (ne_dist * offset));
+ path_c := (z3 - se_dist)
+ -- (z4 - se_dist);
+ path_d := (z4 - (ne_dist * offset))
+ -- (z1 - (ne_dist * offset));
+
+ z5 = path_a intersectionpoint path_d;
+ z7 = path_b intersectionpoint path_c;
+
+ labels (range 1 thru 8);
+
+ inner_path := z5
+ -- z6
+ -- z7
+ -- z8
+ -- cycle;
+
+ if mirror:
+ path_in := inner_path;
+ else:
+ path_in := inner_path reflectedabout (z2, z4);
+ fi
+
+ path_out := lft z1 {down}
+ .. (z1 - se_dist){se}
+ -- (z2 - se_dist){se}
+ .. bot z2 {right}
+ .. (z2 - ne_dist){ne}
+ -- (z3 - ne_dist){ne}
+ .. rt z3 {up}
+ .. (z3 + se_dist){-se}
+ -- (z4 + se_dist){-se}
+ .. top z4 {left}
+ .. (z4 + ne_dist){-ne}
+ -- (z1 + ne_dist){-ne}
+ .. cycle;
+enddef;
+
+
+save mi_weight, mi_width;
+mi_weight := 2;
+mi_width := 1.2;
+
+fet_beginchar ("Whole mihead", "s0mi");
+ draw_mi_head (mi_width * solfa_whole_width, mi_weight, false);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Half mihead", "s1mi");
+ draw_mi_head (mi_width * solfa_quarter_width, mi_weight, false);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter mihead", "s2mi");
+ draw_mi_head (mi_width * solfa_quarter_width, mi_weight, false);
+ fill path_out;
+fet_endchar;
+
+
+fet_beginchar ("Whole mirror mihead", "s0miMirror");
+ draw_mi_head (mi_width * solfa_whole_width, mi_weight, true);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Half mirror mihead", "s1miMirror");
+ draw_mi_head (mi_width * solfa_quarter_width, mi_weight, true);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter mirror mihead", "s2miMirror");
+ draw_mi_head (mi_width * solfa_quarter_width, mi_weight, true);
+ fill path_out;
+fet_endchar;
+
+
+fet_beginchar ("Whole thin mihead", "s0miThin");
+ draw_mi_head (mi_width * solfa_whole_width, 1, false);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Half thin mihead", "s1miThin");
+ draw_mi_head (mi_width * solfa_quarter_width, 1, false);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter thin mihead", "s2miThin");
+ draw_mi_head (mi_width * solfa_quarter_width, 1, false);
+ fill path_out;
+fet_endchar;
+
+
+%%%% fa head
+%
+% Right triangle, hypotenuse from nw to se corner. Stem attaches on
+% vertical side in direction of horizontal side.
+%
+def draw_fa_head (expr width_factor, thickness_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;
+ save path_a, path_b, path_c;
+ path path_a, path_b, path_c;
+ pair nw_dist, nw;
+
+ save offset;
+ offset := 2 * thickness_factor - 1;
+
+ save pen_radius;
+ pen_radius := min (solfa_pen_radius,
+ .33 * (h + d) / (1 + offset));
+
+ pickup pencircle scaled (2 * pen_radius);
+
+ lft x1 = 0;
+ top y1 = h;
+
+ rt x2 = w;
+ 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) * pen_radius;
+
+ path_a := (z1 - (0,1) * offset * pen_radius)
+ -- (z2 - (0,1) * offset * pen_radius);
+ path_b := (z2 - (1,0) * pen_radius)
+ -- (z3 - (1,0) * pen_radius);
+ path_c := (z3 - nw_dist)
+ -- (z1 - nw_dist);
+
+ p_up_in := (path_a intersectionpoint path_b)
+ -- (path_b intersectionpoint path_c)
+ -- (path_c intersectionpoint path_a)
+ -- 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}
+ .. 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;
+
+save fa_weight;
+fa_weight := 1.75;
+
+fet_beginchar ("Whole fa up head", "u0fa");
+ draw_fa_head (solfa_whole_width, fa_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Whole fa down head", "d0fa");
+ draw_fa_head (solfa_whole_width, fa_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("half fa up head", "u1fa");
+ draw_fa_head (solfa_half_width, fa_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Half fa down head", "d1fa");
+ draw_fa_head (solfa_half_width, fa_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter fa up head", "u2fa");
+ draw_fa_head (solfa_quarter_width, fa_weight);
+ fill p_up_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter fa down head", "d2fa");
+ draw_fa_head (solfa_quarter_width, fa_weight);
+ fill p_down_out;
+fet_endchar;
+
+
+fet_beginchar ("Whole thin fa up head", "u0faThin");
+ draw_fa_head (solfa_whole_width, 1);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Whole thin fa down head", "d0faThin");
+ draw_fa_head (solfa_whole_width, 1);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("half thin fa up head", "u1faThin");
+ draw_fa_head (solfa_half_width, 1);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Half thin fa down head", "d1faThin");
+ draw_fa_head (solfa_half_width, 1);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter thin fa up head", "u2faThin");
+ draw_fa_head (solfa_quarter_width, 1);
+ fill p_up_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter thin fa down head", "d2faThin");
+ draw_fa_head (solfa_quarter_width, 1);
+ fill p_down_out;
+fet_endchar;
+
+
+
+%%%% sol head
+%
+% Note: sol head is the same shape as a standard music head, and doesn't
+% vary from style to style. However, width is constant with duration,
+% so we can't just use the standard note font.
+%
+def draw_sol_head (expr filled) =
+ draw_outside_ellipse (1.53 - puff_up_factor / 3.0, 34, 0.66, 0.17);
+ if not filled:
+ undraw_inside_ellipse (3.25, 33, 0.81, 2.5 stafflinethickness#);
+ fi
+ draw_staff (-2, 2, 0);
+enddef;
+
+fet_beginchar ("Whole solhead", "s0sol");
+ draw_sol_head ( false);
+fet_endchar;
+
+
+fet_beginchar ("Half solhead", "s1sol");
+ draw_sol_head ( false);
+fet_endchar;
+
+
+fet_beginchar ("Quarter solhead", "s2sol");
+ draw_sol_head ( true);
+fet_endchar;
+
+
+%%%% la head
+%
+% Rectangle head
+%
+def draw_la_head (expr width_factor, thickness_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;
+
+ save offset;
+ offset := 2 * thickness_factor - 1;
+
+ save pen_radius;
+ pen_radius := min (solfa_pen_radius,
+ .35 * (h + d) / (1 + offset));
+
+ pickup pencircle scaled (2 * pen_radius);
+
+ 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 + pen_radius * (1, -offset))
+ -- (z2 + pen_radius * (-1, -offset))
+ -- (z3 + pen_radius * (-1, offset))
+ -- (z4 + pen_radius * (1, offset))
+ -- 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;
+
+
+save la_weight;
+la_weight := 2;
+
+fet_beginchar ("Whole lahead", "s0la");
+ draw_la_head (solfa_whole_width, la_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half lahead", "s1la");
+ draw_la_head (solfa_half_width, la_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter lahead", "s2la");
+ draw_la_head (solfa_quarter_width, la_weight);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Whole thin lahead", "s0laThin");
+ draw_la_head (solfa_whole_width, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half thin lahead", "s1laThin");
+ draw_la_head (solfa_half_width, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter lahead", "s2laThin");
+ draw_la_head (solfa_quarter_width, 1);
+ fill p_out;
+fet_endchar;
+
+
+%%%% ti head
+%
+% `Snow-cone', V with rounded top.
+%
+def draw_ti_head (expr width_factor, dir, thickness_factor) =
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+ save p_in, p_out, p_top, p_top_in;
+ path p_in, p_out, p_top, p_top_in;
+ save cone_height;
+ cone_height = 0.64;
+
+ save offset;
+ offset := 2 * thickness_factor - 1;
+
+ save pen_radius;
+ pen_radius := min (solfa_pen_radius,
+ .4 * (h + d) / (1 + offset));
+
+ pickup pencircle scaled (2 * pen_radius);
+
+ 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;
+ x5 = x1;
+ y5 = y1 + offset * pen_radius;
+
+ labels (range 1 thru 4);
+
+ save nw_dist, sw_dist, nw, sw;
+ pair nw_dist, sw_dist, nw, sw;
+
+ nw = unitvector (z2 - z1);
+ sw = unitvector (z1 - z4);
+
+ nw_dist = (nw rotated 90) * pen_radius;
+ sw_dist = (sw rotated 90) * pen_radius;
+
+ p_top := (z2 + nw * pen_radius)
+ .. (top z3){right}
+ .. (z4 - sw * pen_radius);
+
+ p_top_in := (z2 - nw * offset * pen_radius)
+ .. (z3 - (0,1) * pen_radius) {right}
+ .. (z4 + sw * offset * pen_radius);
+
+ save path_a, path_b;
+ path path_a, path_b;
+ path_a := z2
+ -- z5;
+ path_b := z5
+ -- z4;
+
+ z6 = path_a intersectionpoint p_top_in;
+ z7 = path_b intersectionpoint p_top_in;
+
+ p_in := z5
+ -- z6
+ .. bot z3
+ .. z7
+ -- cycle;
+
+ p_out := bot z1
+ .. (z1 + nw_dist)
+ -- (z2 + nw_dist)
+ .. lft z2
+ .. (z2 + nw * pen_radius){direction 0 of p_top}
+ & p_top
+ & {direction infinity of p_top}(z4 - sw * pen_radius)
+ .. rt z4
+ .. (z4 + sw_dist)
+ -- (z1 + sw_dist)
+ .. cycle;
+
+ charwx := charwd;
+ charwy := cone_height [-chardp, charht];
+ if dir = -1:
+ charwy := -charwy;
+ fi;
+enddef;
+
+
+save ti_weight;
+ti_weight := 2;
+
+fet_beginchar ("Whole up tihead", "s0ti");
+ draw_ti_head (solfa_whole_width, 1, ti_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up tihead", "u1ti");
+ draw_ti_head (solfa_half_width, 1, ti_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down tihead", "d1ti");
+ draw_ti_head (solfa_half_width, -1, ti_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter up tihead", "u2ti");
+ draw_ti_head (solfa_quarter_width, 1, ti_weight);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter down tihead", "d2ti");
+ draw_ti_head (solfa_quarter_width, -1, ti_weight);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Whole thin up tihead", "s0tiThin");
+ draw_ti_head (solfa_whole_width, 1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half thin up tihead", "u1tiThin");
+ draw_ti_head (solfa_half_width, 1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half thin down tihead", "d1tiThin");
+ draw_ti_head (solfa_half_width, -1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter thin up tihead", "u2tiThin");
+ draw_ti_head (solfa_quarter_width, 1, 1);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter thin down tihead", "d2tiThin");
+ draw_ti_head (solfa_quarter_width, -1, 1);
+ fill p_out;
+fet_endchar;
+
+
+%%%%%% Funk shape note heads
+%
+% Funk heads are narrower than Aiken and Sacred Harp, so we need a new
+% width.
+%
+funk_notehead_width := 0.75;
+
+
+%%%%%% Funk do head
+% Parabolic on one side, vertical line on other
+% Has up and down shapes for *all* notes
+%
+def draw_Funk_do_head (expr width_factor, thickness_factor) =
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+
+ save offset;
+ offset := 2 * thickness_factor - 1;
+
+ save pen_radius;
+ pen_radius := min (solfa_pen_radius,
+ .3 * (h + d) / (1 + offset));
+
+ pickup pencircle scaled (2 * pen_radius);
+
+ rt x1 = w;
+ bot y1 = -d;
+
+ lft x2 = 0;
+ y2 = 0.5 [y1, y3];
+
+ x3 = x1;
+ top y3 = h;
+
+ x4 = x1 - pen_radius;
+ y4 = y1 + offset * pen_radius;
+
+ y5 = y2;
+ x5 = x2 + pen_radius;
+
+ x6 = x4;
+ y6 = y3 - offset * pen_radius;
+
+ save p_up_in, p_up_out, p_down_in, p_down_out;
+ path p_up_in, p_up_out, p_down_in, p_down_out;
+
+ p_down_in := z4{left}
+ ... z5{up}
+ ... z6{right}
+ -- cycle;
+
+ p_down_out := bot z1{left}
+ .. lft z2{up}
+ .. top z3{right}
+ .. rt z3{down}
+ -- rt z1{down}
+ .. cycle;
+
+ p_up_in := p_down_in rotated 180 shifted (w,0);
+ p_up_out := p_down_out rotated 180 shifted (w,0);
+
+enddef;
+
+
+save funk_do_weight;
+funk_do_weight := 1.7;
+
+fet_beginchar ("Whole up Funk dohead", "u0doFunk");
+ draw_Funk_do_head (funk_notehead_width, funk_do_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Whole down Funk dohead", "d0doFunk");
+ draw_Funk_do_head (funk_notehead_width, funk_do_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up Funk dohead", "u1doFunk");
+ draw_Funk_do_head (funk_notehead_width, funk_do_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down Funk dohead", "d1doFunk");
+ draw_Funk_do_head (funk_notehead_width, funk_do_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter up Funk dohead", "u2doFunk");
+ draw_Funk_do_head (funk_notehead_width, funk_do_weight);
+ fill p_up_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter down Funk dohead", "d2doFunk");
+ draw_Funk_do_head (funk_notehead_width, funk_do_weight);
+ fill p_down_out;
+fet_endchar;
+
+
+%%%%%% Funk re head
+% Arrowhead shape.
+% Has up and down shapes for *all* notes
+%
+def draw_Funk_re_head (expr width_factor, thickness_factor) =
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+
+ save offset;
+ offset := 2 * thickness_factor - 1;
+
+ save pen_radius;
+ pen_radius := min (solfa_pen_radius,
+ .3 * (h + d) / (1 + offset));
+
+ pickup pencircle scaled (2 * pen_radius);
+
+ save curve_in;
+ curve_in := 0.9;
+
+ lft x1 = 0;
+ y1 := 0.5 [y2, y4];
+
+ rt x2 = w;
+ top y2 = h;
+
+ x3 := curve_in [x1, x2];
+ y3 := y1;
+
+ x4 = x2;
+ bot y4 = -d;
+
+ z6 = lft z3;
+
+ save ne, se, ne_perp, se_perp;
+ pair ne, se, ne_perp, se_perp;
+
+ ne := unitvector (z2 - z1);
+ se := unitvector (z4 - z1);
+ ne_perp := ne rotated 90;
+ se_perp := se rotated 90;
+
+ save path_a, path_b, path_c, path_d;
+ path path_a, path_b, path_c, path_d;
+ save arrow_a_perp, arrow_b_perp;
+ pair arrow_a_perp, arrow_b_perp;
+
+
+ path_d := z2 .. z3{down} .. z4;
+ arrow_a_perp = unitvector (direction 0 of path_d rotated 90)
+ * pen_radius;
+ arrow_b_perp = unitvector (direction 2 of path_d rotated 90)
+ * pen_radius;
+
+ path_b := (z1 + se_perp * pen_radius)
+ -- z4 + se_perp * offset * pen_radius;
+ path_a := (z1 - ne_perp * pen_radius)
+ -- z2 - ne_perp * offset * pen_radius;
+ path_c := z2 - arrow_a_perp
+ .. z6{down}
+ .. z4 - arrow_b_perp;
+
+ z5 = path_a intersectionpoint path_b;
+ z7 = path_a intersectionpoint path_c;
+ z8 = path_b intersectionpoint path_c;
+
+ save p_up_in, p_down_in, p_up_out, p_down_out;
+ path p_up_in, p_down_in, p_up_out, p_down_out;
+
+ p_down_in := z5
+ -- z7
+ .. z6{down}
+ .. z8
+ -- cycle;
+
+ p_down_out := lft z1{up}
+ .. (z1 + ne_perp * pen_radius){ne}
+ -- (z2 + ne_perp * pen_radius){ne}
+ .. top z2 {right}
+ .. rt z2{down}
+ .. (z2 + arrow_a_perp)
+ .. rt z3{down}
+ .. (z4 + arrow_b_perp)
+ .. rt z4{down}
+ .. bot z4 {left}
+ .. z4 - se_perp * pen_radius
+ -- z1 - se_perp * pen_radius
+ .. cycle;
+
+ p_up_in := p_down_in rotated 180 shifted (w, 0);
+ p_up_out := p_down_out rotated 180 shifted (w, 0);
+
+enddef;
+
+
+save funk_re_weight;
+funk_re_weight = 1.7;
+
+fet_beginchar ("Whole up Funk rehead", "u0reFunk");
+ draw_Funk_re_head (funk_notehead_width, funk_re_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Whole down Funk rehead", "d0reFunk");
+ draw_Funk_re_head (funk_notehead_width, funk_re_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up Funk rehead", "u1reFunk");
+ draw_Funk_re_head (funk_notehead_width, funk_re_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down Funk rehead", "d1reFunk");
+ draw_Funk_re_head (funk_notehead_width, funk_re_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter up Funk rehead", "u2reFunk");
+ draw_Funk_re_head (funk_notehead_width, funk_re_weight);
+ fill p_up_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter down Funk rehead", "d2reFunk");
+ draw_Funk_re_head (funk_notehead_width, funk_re_weight);
+ fill p_down_out;
+fet_endchar;
+
+
+%%%%%% Funk mi head
+% Diamond shape
+% Has up and down shapes for all hollow notes
+%
+save funk_mi_width, funk_mi_weight;
+funk_mi_width := 1.2;
+funk_mi_weight := 1.9;
+
+fet_beginchar ("Whole up Funk mihead", "u0miFunk");
+ draw_mi_head (funk_mi_width * funk_notehead_width,
+ funk_mi_weight, false);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Whole down Funk mihead", "d0miFunk");
+ draw_mi_head (funk_mi_width * funk_notehead_width,
+ funk_mi_weight, true);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up Funk mihead", "u1miFunk");
+ draw_mi_head (funk_mi_width * funk_notehead_width,
+ funk_mi_weight, false);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down Funk mihead", "d1miFunk");
+ draw_mi_head (funk_mi_width * funk_notehead_width,
+ funk_mi_weight, true);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter Funk mihead", "s2miFunk");
+ draw_mi_head (funk_mi_width * funk_notehead_width,
+ funk_mi_weight, false);
+ fill path_out;
+fet_endchar;
+
+
+%%%%%% Funk fa
+% Triangle shape
+% Does it rotate for whole notes?
+% Same as other shape note systems
+% Need special notes because of special width
+%
+save funk_fa_weight;
+funk_fa_weight := 1.9;
+
+fet_beginchar ("Whole up Funk fahead", "u0faFunk");
+ draw_fa_head (funk_notehead_width, funk_fa_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Whole down Funk fahead", "d0faFunk");
+ draw_fa_head (funk_notehead_width, funk_fa_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up Funk fahead", "u1faFunk");
+ draw_fa_head (funk_notehead_width, funk_fa_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down Funk fahead", "d1faFunk");
+ draw_fa_head (funk_notehead_width, funk_fa_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter up Funk fahead", "u2faFunk");
+ draw_fa_head (funk_notehead_width, funk_fa_weight);
+ fill p_up_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter down Funk fahead", "d2faFunk");
+ draw_fa_head (funk_notehead_width, funk_fa_weight);
+ fill p_down_out;
+fet_endchar;
+
+
+%%%%%% Funk sol head is the same as the others
+% Need special character because of skinnier head
+%
+def draw_Funk_sol_head (expr filled) =
+begingroup
+ save noteheight;
+ noteheight# := solfa_noteheight#;
+ draw_outside_ellipse (1.2, 34, 0.71, 0.);
+ if not filled:
+ undraw_inside_ellipse (1.9, 33, 0.74, 5.5 stafflinethickness#);
+ fi
+ draw_staff (-2, 2, 0);
+endgroup
+enddef;
+
+
+fet_beginchar ("Whole Funk solhead", "s0solFunk");
+ draw_Funk_sol_head ( false);
+fet_endchar;
+
+
+fet_beginchar ("Half Funk solhead", "s1solFunk");
+ draw_Funk_sol_head ( false);
+fet_endchar;
+
+
+fet_beginchar ("Quarter Funk solhead", "s2solFunk");
+ draw_Funk_sol_head ( true);
+fet_endchar;
+
+
+%%%%%% Funk la head
+% Rectangle head
+% Same as for other shape notes
+% Smaller width requires special characters
+%
+save funk_la_weight;
+funk_la_weight := 1.9;
+
+fet_beginchar ("Whole Funk lahead", "s0laFunk");
+ draw_la_head (funk_notehead_width, funk_notehead_width);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half Funk lahead", "s1laFunk");
+ draw_la_head (funk_notehead_width, funk_notehead_width);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter Funk lahead", "s2laFunk");
+ draw_la_head (funk_notehead_width, funk_notehead_width);
+ fill p_out;
+fet_endchar;
+
+
+%%%%%% Funk ti head
+% `Sideways snow cone'.
+% Rotates for all notes.
+%
+def draw_Funk_ti_head (expr width_factor, thickness_factor) =
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+ save cone_width;
+ cone_width = 0.8;
+
+ save offset;
+ offset := 2 * thickness_factor - 1;
+
+ save pen_radius;
+ pen_radius := min (solfa_pen_radius,
+ .33 * (h + d) / (1 + offset));
+
+ pickup pencircle scaled (2 * pen_radius);
+
+ lft x1 = 0;
+ y1 = .5 [y2, y4];
+
+ x2 = cone_width [x1, x3];
+ top y2 = h;
+
+ rt x3 = w;
+ y3 = y1;
+
+ x4 = x2;
+ bot y4 = -d;
+
+ save nw_dist, sw_dist, ne, se;
+ pair nw_dist, sw_dist, ne, se;
+
+ ne = unitvector (z2 - z1);
+ se = unitvector (z4 - z1);
+
+ nw_dist = (ne rotated 90) * pen_radius ;
+ sw_dist = (se rotated -90) * pen_radius;
+
+ save path_a, path_b;
+ path path_a, path_b;
+ path_a := z1 - nw_dist
+ -- z2 - offset * nw_dist;
+ path_b := z1 - sw_dist
+ -- z4 - offset * sw_dist;
+
+ save path_right, path_right_in;
+ path path_right, path_right_in;
+ path_right := (z2 + ne * pen_radius)
+ .. (rt z3){down}
+ .. (z4 + se * pen_radius);
+
+ path_right_in := (z2 - ne * pen_radius)
+ .. lft z3{down}
+ .. (z4 - se * pen_radius);
+
+ z5 = path_a intersectionpoint path_b;
+ z6 = path_a intersectionpoint path_right_in;
+ z7 = path_b intersectionpoint path_right_in;
+
+ save p_up_in, p_down_in, p_up_out, p_down_out;
+ path p_up_in, p_down_in, p_up_out, p_down_out;
+
+ p_down_in := z5
+ -- z6
+ .. lft z3
+ .. z7
+ -- cycle;
+
+ p_down_out := lft z1
+ .. (z1 + nw_dist)
+ -- (z2 + nw_dist)
+ .. top z2
+ .. (z2 + ne * pen_radius){direction 0 of path_right}
+ & path_right
+ & {direction infinity of path_right}(z4 + se * pen_radius)
+ .. bot z4
+ .. (z4 + sw_dist)
+ -- (z1 + sw_dist)
+ .. cycle;
+
+ p_up_in := p_down_in rotated 180 shifted (w, 0);
+ p_up_out := p_down_out rotated 180 shifted (w, 0);
+enddef;
+
+
+save funk_ti_weight;
+funk_ti_weight := 1.6;
+
+fet_beginchar ("Whole up Funk tihead", "u0tiFunk");
+ draw_Funk_ti_head (funk_notehead_width, funk_ti_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Whole down Funk tihead", "d0tiFunk");
+ draw_Funk_ti_head (funk_notehead_width, funk_ti_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up Funk tihead", "u1tiFunk");
+ draw_Funk_ti_head (funk_notehead_width, funk_ti_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down Funk tihead", "d1tiFunk");
+ draw_Funk_ti_head (funk_notehead_width, funk_ti_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter up Funk tihead", "u2tiFunk");
+ draw_Funk_ti_head (funk_notehead_width, funk_ti_weight);
+ fill p_up_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter down Funk tihead", "d2tiFunk");
+ draw_Funk_ti_head (funk_notehead_width, funk_ti_weight);
+ fill p_down_out;
+fet_endchar;
+
+
+%%%%%% Walker shape note heads
+%
+% Walker heads are narrow like Funk heads, so use funk_notehead_width.
+%
+
+%%%%%% Walker do head
+%
+% Trapezoid, with largest side on stem side
+%
+def draw_Walker_do_head (expr width_factor, dir, thickness_factor) =
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+
+ pickup pencircle scaled solfa_pen_thick;
+
+ save offset;
+ offset := 2 * thickness_factor - 1;
+
+ % adjust width so stem can be centered
+ if .5w <> good.x .5w: change_width; fi
+
+ save scaling;
+
+ scaling# = charwd / w;
+
+ save inset;
+ inset := 0.25;
+
+ x1 = inset [x4, x3];
+ top y1 = h;
+
+ x2 = inset [x3, x4];
+ y2 = y1;
+
+ bot y3 = -d;
+ rt x3 = w;
+
+ y4 = y3;
+ lft x4 = 0;
+
+ labels (range 1 thru 4);
+
+ save left_dir, left_perp, right_dir, right_perp;
+ pair left_dir, left_perp, right_dir, right_perp;
+
+ left_dir = unitvector(z1 - z4);
+ left_perp = (left_dir rotated 90) * solfa_pen_radius;
+ right_dir = unitvector(z3 - z2);
+ right_perp = (right_dir rotated 90) * solfa_pen_radius;
+
+ save path_a, path_b, path_c, path_d;
+ path path_a, path_b, path_c, path_d;
+
+ path_a := (z4 - left_perp)
+ -- (z1 - left_perp);
+ path_b := (z1 - (0, offset*solfa_pen_radius))
+ -- (z2 - (0, offset*solfa_pen_radius));
+ path_c := (z2 - right_perp)
+ -- (z3 - right_perp);
+ path_d := (z3 + (0, offset*solfa_pen_radius))
+ -- (z4 + (0, offset*solfa_pen_radius));
+
+ save p_in, p_out;
+ path p_in, p_out;
+
+ p_in := (path_a intersectionpoint path_b)
+ -- (path_b intersectionpoint path_c)
+ -- (path_c intersectionpoint path_d)
+ -- (path_d intersectionpoint path_a)
+ -- cycle;
+
+ p_out := top z1{right}
+ -- top z2{right}
+ .. z2 + right_perp {right_dir}
+ -- z3 + right_perp {right_dir}
+ .. bot z3{left}
+ -- bot z4{left}
+ .. z4 + left_perp {left_dir}
+ .. z1 + left_perp {left_dir}
+ .. cycle;
+
+ charwx := scaling# * (w/2 + solfa_pen_radius);
+ charwy := scaling# * y2 ;
+
+ if dir = 1:
+ p_in := p_in rotated 180 shifted (w,0);
+ p_out := p_out rotated 180 shifted (w,0);
+ fi;
+enddef;
+
+
+save walker_do_weight;
+walker_do_weight := 1.5;
+
+fet_beginchar ("Whole Walker dohead", "s0doWalker");
+ draw_Walker_do_head (funk_notehead_width, 0, walker_do_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up Walker dohead", "u1doWalker");
+ draw_Walker_do_head (funk_notehead_width, 1, walker_do_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down Walker dohead", "d1doWalker");
+ draw_Walker_do_head (funk_notehead_width, 0, walker_do_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter up Walker dohead", "u2doWalker");
+ draw_Walker_do_head (funk_notehead_width, 1, walker_do_weight);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter down Walker dohead", "d2doWalker");
+ draw_Walker_do_head (funk_notehead_width, 0, walker_do_weight);
+ fill p_out;
+fet_endchar;
+
+
+%%%%%% Walker re head
+% Parabolic on one side, shallow parabola on other
+% Has up and down shapes for *all* notes
+%
+def draw_Walker_re_head (expr width_factor, thickness_factor) =
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+
+ save offset;
+ offset := 2 * thickness_factor - 1;
+
+ save pen_radius;
+ pen_radius := min (solfa_pen_radius,
+ .3 * (h + d) / (1 + offset));
+
+ pickup pencircle scaled (2 * pen_radius);
+
+ save dish_factor;
+ dish_factor := 0.20;
+
+ rt x1 = w;
+ bot y1 = -d;
+
+ lft x2 = 0;
+ y2 = 0.5 [y1, y3];
+
+ top y3 = h;
+ x3 = x1;
+
+ x4 = dish_factor [x1, x2];
+ y4 = y2;
+
+ x5 = x1;
+ y5 = y1 + offset * pen_radius;
+
+ y6 = y2;
+ x6 = x2 + pen_radius;
+
+ x7 = x3;
+ y7 = y3 - offset * pen_radius;
+
+ y8 = y4;
+ x8 = x4 - pen_radius;
+
+ save path_a, path_d;
+ path path_a, path_d;
+
+ save p_a_start_dir, p_a_end_dir, p_a_start_perp, p_a_end_perp;
+ pair p_a_start_dir, p_a_end_dir, p_a_start_perp, p_a_end_perp;
+
+ path_a := z3 .. z4{down} .. z1;
+
+ p_a_start_dir := unitvector(direction 0 of path_a);
+ p_a_end_dir := unitvector(direction infinity of path_a);
+ p_a_start_perp := (p_a_start_dir rotated 90) * pen_radius;
+ p_a_end_perp := (p_a_end_dir rotated 90) * pen_radius;
+
+ path_d := (z3 - p_a_start_perp){p_a_start_dir}
+ .. z4 {down}
+ ..(z1 - p_a_end_perp){p_a_end_dir};
+
+ save path_b, path_c;
+ path path_b, path_c;
+
+ path_b := z5 {left} .. z6{up};
+ path_c := z7 {left} .. z6{down};
+
+ z9 = path_d intersectionpoint path_b;
+ z10 = path_d intersectionpoint path_c;
+
+ labels (range 1 thru 4);
+
+ save p_up_in, p_up_out, p_down_in, p_down_out;
+ path p_up_in, p_up_out, p_down_in, p_down_out;
+
+ p_down_in := z6{up}
+ ... {right} z10 {p_a_start_dir}
+ .. z8{down}
+ .. {p_a_end_dir} z9 {left}
+ ... cycle;
+
+ p_down_out := lft z2{up}
+ .. top z3{right}
+ .. rt z3
+ .. (z3 + p_a_start_perp){p_a_start_dir}
+ .. rt z4{down}
+ .. (z1 + p_a_end_perp) {p_a_end_dir}
+ .. rt z1
+ .. bot z1 {left}
+ .. cycle;
+
+ p_up_in := p_down_in rotated 180 shifted (w,0);
+ p_up_out := p_down_out rotated 180 shifted (w,0);
+enddef;
+
+
+save walker_re_weight;
+walker_re_weight := 1.2;
+
+fet_beginchar ("Whole Walker rehead", "s0reWalker");
+ draw_Walker_re_head (funk_notehead_width, walker_re_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up Walker rehead", "u1reWalker");
+ draw_Walker_re_head (funk_notehead_width, walker_re_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down Walker rehead", "d1reWalker");
+ draw_Walker_re_head (funk_notehead_width, walker_re_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter up Walker rehead", "u2reWalker");
+ draw_Walker_re_head (funk_notehead_width, walker_re_weight);
+ fill p_up_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter down Walker rehead", "d2reWalker");
+ draw_Walker_re_head (funk_notehead_width, walker_re_weight);
+ fill p_down_out;
+fet_endchar;
+
+
+%%%%%% Walker mi head
+% Diamond shape
+% Symmetric for all hollow notes
+%
+save walker_mi_width, walker_mi_weight;
+walker_mi_width := 1.2;
+walker_mi_weight := 1.5;
+
+fet_beginchar ("Whole Walker mihead", "s0miWalker");
+ draw_mi_head (walker_mi_width * funk_notehead_width,
+ walker_mi_weight, true);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Half Walker mihead", "s1miWalker");
+ draw_mi_head (walker_mi_width * funk_notehead_width,
+ walker_mi_weight, true);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter Walker mihead", "s2miWalker");
+ draw_mi_head (walker_mi_width * funk_notehead_width,
+ walker_mi_weight, true);
+ fill path_out;
+fet_endchar;
+
+
+%%%%%% Walker fa
+% Triangle shape
+% Does not rotate for whole notes
+% Whole rotation is different from Funk, so special notes
+
+%%%%%% Funk sol head is the same as the others
+% Need special character because of skinnier head
+%
+save walker_fa_weight;
+walker_fa_weight := 1.5;
+
+fet_beginchar ("Whole Walker fahead", "s0faWalker");
+ draw_fa_head (funk_notehead_width, walker_fa_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up Walker fahead", "u1faWalker");
+ draw_fa_head (funk_notehead_width, walker_fa_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down Walker fahead", "d1faWalker");
+ draw_fa_head (funk_notehead_width, walker_fa_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter up Walker fahead", "u2faWalker");
+ draw_fa_head (funk_notehead_width, walker_fa_weight);
+ fill p_up_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter down Walker fahead", "d2faWalker");
+ draw_fa_head (funk_notehead_width, walker_fa_weight);
+ fill p_down_out;
+fet_endchar;
+
+
+%%%%%% Walker sol
+% Same as Funk, no special notes
+%
+
+%%%%%% Walker la head
+% Rectcangle head
+% Lighter weight requires separate notes
+%
+save walker_la_weight;
+walker_la_weight := 1.5;
+
+fet_beginchar ("Whole Walker lahead", "s0laWalker");
+ draw_la_head (funk_notehead_width, walker_la_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half Funk lahead", "s1laWalker");
+ draw_la_head (funk_notehead_width, walker_la_weight);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter Funk lahead", "s2laWalker");
+ draw_la_head (funk_notehead_width, walker_la_weight);
+ fill p_out;
+fet_endchar;
+
+
+%%%%%% Walker ti head
+% Triangular arrowhead
+% Rotates for all but whole notes
+%
+def draw_Walker_ti_head (expr width_factor, thickness_factor) =
+ set_char_box (0, width_factor * solfa_base_notewidth#,
+ 0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
+
+ save offset;
+ offset := 2 * thickness_factor - 1;
+
+ save pen_radius;
+ pen_radius := min (solfa_pen_radius,
+ .3 * (h + d) / (1 + offset));
+
+ pickup pencircle scaled (2 * pen_radius);
+
+ lft x1 = 0;
+ y1 = .5 [y2, y3];
+
+ rt x2 = w;
+ top y2 = h;
+
+ x3 = x2;
+ bot y3 = -d;
+
+
+ labels (range 1 thru 4);
+
+ save nw_dist, sw_dist, ne, se;
+ pair nw_dist, sw_dist, ne, se;
+
+ ne = unitvector (z2 - z1);
+ se = unitvector (z3 - z1);
+
+ nw_dist = (ne rotated 90) * pen_radius ;
+ sw_dist = (se rotated -90) * pen_radius;
+
+
+ save path_a, path_b, path_c;
+ path path_a, path_b, path_c;
+ path_a := z2 - nw_dist * offset
+ -- z1 - nw_dist * offset;
+ path_b := z3 - sw_dist * offset
+ -- z1 - sw_dist * offset;
+ path_c := z2 + left * pen_radius
+ -- z3 + left * pen_radius;
+
+ z4 = path_a intersectionpoint path_b;
+ z5 = path_a intersectionpoint path_c;
+ z6 = path_b intersectionpoint path_c;
+
+ save p_up_in, p_down_in, p_up_out, p_down_out;
+ path p_up_in, p_down_in, p_up_out, p_down_out;
+
+ p_down_in := z4
+ -- z5
+ -- z6
+ -- cycle;
+
+ p_down_out := lft z1{up}
+ .. (z1 + nw_dist){ne}
+ -- (z2 + nw_dist){ne}
+ .. top z2{right}
+ .. rt z2 {down}
+ -- rt z3 {down}
+ .. bot z3 {left}
+ .. (z3 + sw_dist){- se}
+ .. (z1 + sw_dist){- se}
+ .. cycle;
+
+ p_up_in := p_down_in rotated 180 shifted (w, 0);
+ p_up_out := p_down_out rotated 180 shifted (w, 0);
+enddef;
+
+
+save walker_ti_weight;
+walker_ti_weight := 1.4;
+
+fet_beginchar ("Whole Walker tihead", "s0tiWalker");
+ draw_Walker_ti_head (funk_notehead_width, walker_ti_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up Walker tihead", "u1tiWalker");
+ draw_Walker_ti_head (funk_notehead_width, walker_ti_weight);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down Walker tihead", "d1tiWalker");
+ draw_Walker_ti_head (funk_notehead_width, walker_ti_weight);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter up Walker tihead", "u2tiWalker");
+ draw_Walker_ti_head (funk_notehead_width, walker_ti_weight);
+ fill p_up_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter down Walker tihead", "d2tiWalker");
+ draw_Walker_ti_head (funk_notehead_width, walker_ti_weight);
+ fill p_down_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