-% Feta (not the Font-En-Tja) music font -- implement noteheads
+% Feta (not the Font-En-Tja) music font -- implement noteheads
% This file is part of LilyPond, the GNU music typesetter.
%
-% Copyright (C) 1997--2010 Jan Nieuwenhuizen <janneke@gnu.org>
+% Copyright (C) 1997--2015 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
+% The LilyPond font 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.
+% (at your option) any later version, or under the SIL Open Font License.
%
% 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
+% 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/>.
+% 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;
+save half_notehead_width, whole_notehead_width;
+save 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;
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);
+ % Longas of smaller design sizes should have their lines farther
+ % apart (the overlap with notehead ellipsoid should be smaller).
+ fudge = hround (blot_diameter
+ * min (max (-0.15,
+ (0.9
+ - (20 / (design_size + 4)))),
+ 0.3));
draw_outside_ellipse (1.80, 0, 0.707, 0);
undraw_inside_ellipse (1.30, 125, 0.68, 2 stafflinethickness#);
pickup pencircle scaled stemthick;
+ % Longas of smaller design sizes should have their lines longer.
+ line_length := min (max (0.7, (64/60 - (design_size / 60))), 0.85);
+
+ % Line lengths between 0.72 and 0.77 are not nice
+ % because they are neither separate nor connected
+ % when there is an interval of fourth.
+ if line_length < 0.75:
+ quanted_line_length := min (0.72, line_length);
+ else:
+ quanted_line_length := max (0.77, line_length);
+ fi;
+
+
+ final_line_length := quanted_line_length * staff_space;
+
+ save boxtop, boxbot;
+ define_pixels (boxtop, boxbot);
+
if up:
- bot y1 = -d;
- top y2 = h;
+ bot y1 = -final_line_length;
+ top y2 = final_line_length;
rt x1 - fudge = 0;
x1 = x2;
- fudge + lft x3 = w;
+ fudge + lft x3 = width;
x4 = x3;
top y4 = h + 3.0 staff_space;
y3 = y1;
+ boxtop# := staff_space# * (quanted_line_length + 3.0) - stemthick# ;
+ boxbot# := staff_space# * quanted_line_length;
else:
bot y1 = -d - 3.0 staff_space;
- top y2 = h;
+ top y2 = final_line_length;
rt x1 - fudge = 0;
x1 = x2;
- fudge + lft x3 = w;
+ fudge + lft x3 = width;
x4 = x3;
y4 = y2;
- bot y3 = -d;
+ bot y3 = -final_line_length;
+ boxtop# := staff_space# * quanted_line_length;
+ boxbot# := staff_space# * (quanted_line_length + 3.0) - stemthick# ;
fi;
draw_gridline (z1, z2, stemthick);
draw_gridline (z3, z4, stemthick);
+ set_char_box (stemthick#,
+ width# + stemthick#,
+ boxbot#,
+ boxtop#);
+
labels (1, 2, 3, 4);
enddef;
fet_beginchar ("Longa notehead", "uM2");
draw_longa (true);
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
fet_endchar;
+
fet_beginchar ("Longa notehead", "dM2");
draw_longa (false);
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
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;
+def draw_brevis (expr linecount, line_thickness_multiplier) =
+ save stemthick, fudge, gap;
- stemthick# = 2 stafflinethickness#;
+ stemthick# = line_thickness_multiplier * 2 * stafflinethickness#;
define_whole_blacker_pixels (stemthick);
- fudge = hround (blot_diameter / 2);
+ % double-lined breves of smaller design sizes should have
+ % bigger gap between the lines.
+ gap# := (0.95 - 0.008 * design_size) * stemthick#;
+
+ % Breves of smaller design sizes should have their lines farther
+ % apart (the overlap with notehead ellipsoid should be smaller).
+ fudge = hround (blot_diameter
+ * min (max (-0.15,
+ (0.8
+ - (20 / (design_size + 4))
+ + .1 linecount)),
+ 0.3));
draw_outside_ellipse (1.80, 0, 0.707, 0);
undraw_inside_ellipse (1.30, 125, 0.68, 2 stafflinethickness#);
+ define_pixels (gap);
pickup pencircle scaled stemthick;
- bot y1 = -d;
- top y2 = h;
+ % Breves of smaller design sizes should have their lines longer.
+ line_length := min (max (0.7, (64/60 - (design_size / 60))), 0.85);
+
+ % Line lengths between 0.72 and 0.77 are not nice
+ % because they are neither separate nor connected
+ % when there is an interval of fourth.
+ if line_length < 0.75:
+ quanted_line_length := min (0.72, line_length);
+ else:
+ quanted_line_length := max (0.77, line_length);
+ fi;
+
+ set_char_box (stemthick# * linecount + gap# * (linecount - 1),
+ width# + stemthick# * linecount + gap# * (linecount - 1),
+ staff_space# * quanted_line_length,
+ staff_space# * quanted_line_length);
+
+ bot y1 = -quanted_line_length * staff_space;
+ top y2 = quanted_line_length * staff_space;
rt x1 - fudge = 0;
x1 = x2;
- fudge + lft x3 = w;
+ fudge + lft x3 = width;
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);
+ line_distance := i * (gap + stemthick);
+ draw_gridline (z1 - (line_distance, 0),
+ z2 - (line_distance, 0),
+ stemthick);
+ draw_gridline (z3 + (line_distance, 0),
+ z4 + (line_distance, 0),
+ stemthick);
endfor;
enddef;
fet_beginchar ("Brevis notehead", "sM1");
- draw_brevis (1);
+ draw_brevis (1, 1);
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
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_brevis (2, 0.8);
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
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,
whole_notehead_width# := charwd;
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
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);
+ draw_staff_if_debugging (-2, 2);
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_beginchar ("Quarter notehead", "s2");
+ draw_quarter_path;
+ draw_staff_if_debugging (-2, 2);
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;
-
-
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
undraw_inside_ellipse (1.30, 125, 0.6,
.4 staff_space# + stafflinethickness#);
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
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);
+ draw_staff_if_debugging (-2, 2);
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");
+fet_beginchar ("Quarter diamondhead", "s2diamond");
draw_outside_ellipse (1.80, 35, 0.495, -0.25);
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
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;
-
-
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
fet_beginchar ("Whole trianglehead", "s0triangle");
draw_whole_triangle_head;
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
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;
fet_beginchar ("Half trianglehead (downstem)", "d1triangle");
draw_small_triangle_head (-1);
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
fet_endchar;
fet_beginchar ("Half trianglehead (upstem)", "u1triangle");
draw_small_triangle_head (1);
- draw_staff (-2, 2, 0.5);
+ draw_staff_if_debugging (-2, 2);
fet_endchar;
enddef;
-fet_beginchar ("Quart trianglehead (upstem)", "u2triangle");
+fet_beginchar ("Quarter trianglehead (upstem)", "u2triangle");
draw_closed_triangle_head (1);
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
fet_endchar;
-fet_beginchar ("Quart trianglehead (downstem)", "d2triangle");
+fet_beginchar ("Quarter trianglehead (downstem)", "d2triangle");
draw_closed_triangle_head (-1);
- draw_staff (-2, 2, 0.5);
+ draw_staff_if_debugging (-2, 2);
fet_endchar;
fet_beginchar ("Whole slashhead", "s0slash");
draw_slash (4 slash_thick# + 0.5 staff_space#);
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
fet_endchar;
fet_beginchar ("Half slashhead", "s1slash");
draw_slash (3.0 slash_thick# + 0.15 staff_space#);
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
fet_endchar;
-fet_beginchar ("Quart slashhead", "s2slash");
+fet_beginchar ("Quarter slashhead", "s2slash");
draw_slash (1.5 slash_thick#);
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
fet_endchar;
draw_cross (3.75);
- remember_pic := currentpicture;
-
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
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;
draw_cross (3.0);
- remember_pic := currentpicture;
-
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
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#;
draw_cross (1.0);
- remember_pic := currentpicture;
-
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
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;
ypos := .5 cyd / sqrt2;
pickup penrazor scaled cthick rotated (angle (xpos, ypos) + 90);
- draw (-xpos + w / 2, -ypos + dy) -- (xpos + w / 2, ypos + dy);
+ 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);
+ 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);
+ draw_staff_if_debugging (-2, 2);
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_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;
set_char_box (0, width_factor * solfa_base_notewidth#,
0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
- pickup pencircle scaled solfa_pen_thick;
+ 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);
- bottom_thick_factor := thickness_factor;
- % no different thickness for left side if we want uniform thickness
- left_thick_factor := if thickness_factor = 1 :
- 1;
- else :
- 0.7 * thickness_factor;
- fi
bot y1 = -d;
y1 = y2;
lft x1 = 0;
rt x2 = w;
top y3 = h;
- x3 =.5 [x1, x2];
+ 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;
- bottom_dist = (0,1) * 0.5 solfa_pen_thick;
+ 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);
-
+ 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_in := point_a
+ -- point_b
+ -- point_c
+ -- cycle;
p_out := bot z1
-- bot z2{right}
fi;
enddef;
+save do_weight;
+do_weight := 2;
+
fet_beginchar ("Whole dohead", "s0do");
- draw_do_head (solfa_whole_width, 1, 3.25);
+ 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, 3.25);
+ 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, 3.25);
+ draw_do_head (solfa_half_width, 1, do_weight);
fill p_out;
unfill p_in;
fet_endchar;
-fet_beginchar ("Quart dohead", "d2do");
- draw_do_head (solfa_quarter_width, -1, 3.25);
+fet_beginchar ("Quarter dohead", "d2do");
+ draw_do_head (solfa_quarter_width, -1, do_weight);
fill p_out;
fet_endchar;
-fet_beginchar ("Quart dohead", "u2do");
- draw_do_head (solfa_quarter_width, 1, 3.25);
+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;
fet_endchar;
-fet_beginchar ("Quart thin dohead", "d2doThin");
+fet_beginchar ("Quarter thin dohead", "d2doThin");
draw_do_head (solfa_quarter_width, -1, 1);
fill p_out;
fet_endchar;
-fet_beginchar ("Quart thin dohead", "u2doThin");
+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;
+%
+% (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
+% 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#);
- pickup pencircle scaled solfa_pen_thick;
-
+ 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;
- y1 = y5;
- x1 = x2;
+ top y1 = h;
+ x2 = x1;
y2 = curve_start [y3, y1];
bot y3 = -d;
x3 = .5 [x2, x4];
rt x4 = w;
y4 = y2;
- top y5 = h;
+ y5 = y1;
x5 = x4;
labels (range 1 thru 5);
- p_in := (z1 + 0.5 solfa_pen_thick * (1, -1 * thickness_factor))
+ p_in := (z1 + pen_radius * (1, -1 * offset))
-- rt z2{down}
- .. ((top z3) + (0, thickness_factor * 0.5 solfa_pen_thick))
+ .. ((top z3) + (0, offset * pen_radius))
.. lft z4{up}
- -- (z5 + 0.5 solfa_pen_thick * (-1, -1 * thickness_factor))
+ -- (z5 + pen_radius * (-1, -1 * offset))
-- cycle;
p_out := lft z1
enddef;
+save re_weight;
+re_weight := 2;
+
fet_beginchar ("Whole rehead", "s0re");
- draw_re_head (solfa_whole_width, 1, 2.5);
+ 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, 2.5);
+ 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, 2.5);
+ draw_re_head (solfa_half_width, -1, re_weight);
fill p_out;
unfill p_in;
fet_endchar;
-fet_beginchar ("Quart rehead", "u2re");
- draw_re_head (solfa_quarter_width, 1, 2.5);
+fet_beginchar ("Quarter up rehead", "u2re");
+ draw_re_head (solfa_quarter_width, 1, re_weight);
fill p_out;
fet_endchar;
-fet_beginchar ("Quart rehead", "d2re");
- draw_re_head (solfa_quarter_width, -1, 2.5);
+fet_beginchar ("Quarter down rehead", "d2re");
+ draw_re_head (solfa_quarter_width, -1, re_weight);
fill p_out;
fet_endchar;
fet_endchar;
-fet_beginchar ("Quart thin rehead", "u2reThin");
+fet_beginchar ("Quarter thin rehead", "u2reThin");
draw_re_head (solfa_quarter_width, 1, 1);
fill p_out;
fet_endchar;
-fet_beginchar ("Quart thin rehead", "d2reThin");
+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;
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;
+
+ 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;
% inner sides are parallel to outer sides
z6 - z5 = whatever * (z2 - z1);
- z8 - z7 = whatever * (z2 - z1);
+ z8 - z7 = whatever * (z4 - z3);
z8 - z5 = whatever * (z4 - z1);
- z6 - z7 = whatever * (z4 - z1);
+ z7 - z6 = whatever * (z3 - z2);
ne = unitvector (z4 - z1);
- se = unitvector (z1 - z2);
+ se = unitvector (z2 - z1);
- ne_dist = (ne rotated 90) * 0.5 solfa_pen_thick;
- se_dist = (se rotated 90) * 0.5 solfa_pen_thick;
+ 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 * thickness_factor)) --
- (z3 + (ne_dist * thickness_factor));
- path_c := (z3 + se_dist) -- (z4 + se_dist);
- path_d := (z4 - (ne_dist * thickness_factor)) --
- (z1 - (ne_dist * thickness_factor));
+ 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;
+ -- z6
+ -- z7
+ -- z8
+ -- cycle;
- path_in := if mirror:
- inner_path;
- else:
- inner_path reflectedabout (z2, z4);
- fi
+ if mirror:
+ path_in := inner_path;
+ else:
+ path_in := inner_path reflectedabout (z2, z4);
+ fi
- path_out := lft z1
- .. (z1 + se_dist){-se}
- -- (z2 + se_dist){-se}
- .. bot z2
+ 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
- .. (z3 - se_dist){se}
- -- (z4 - se_dist){se}
- .. top z4
+ .. 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_weight := 2;
+
fet_beginchar ("Whole mihead", "s0mi");
- draw_mi_head (solfa_whole_width, 3, false);
+ draw_mi_head (solfa_whole_width, mi_weight, false);
fill path_out;
unfill path_in;
fet_endchar;
fet_beginchar ("Half mihead", "s1mi");
- draw_mi_head (solfa_quarter_width, 3, false);
+ draw_mi_head (solfa_quarter_width, mi_weight, false);
fill path_out;
unfill path_in;
fet_endchar;
-fet_beginchar ("Quart mihead", "s2mi");
- draw_mi_head (solfa_quarter_width, 3, false);
+
+fet_beginchar ("Quarter mihead", "s2mi");
+ draw_mi_head (solfa_quarter_width, mi_weight, false);
fill path_out;
fet_endchar;
-
fet_beginchar ("Whole mirror mihead", "s0miMirror");
- draw_mi_head (solfa_whole_width, 3, true);
+ draw_mi_head (solfa_whole_width, mi_weight, true);
fill path_out;
unfill path_in;
fet_endchar;
+
fet_beginchar ("Half mirror mihead", "s1miMirror");
- draw_mi_head (solfa_quarter_width, 3, true);
+ draw_mi_head (solfa_quarter_width, mi_weight, true);
fill path_out;
unfill path_in;
fet_endchar;
-fet_beginchar ("Quart mirror mihead", "s2miMirror");
- draw_mi_head (solfa_quarter_width, 3, true);
+
+fet_beginchar ("Quarter mirror mihead", "s2miMirror");
+ draw_mi_head (solfa_quarter_width, mi_weight, true);
fill path_out;
fet_endchar;
-
fet_beginchar ("Whole thin mihead", "s0miThin");
draw_mi_head (solfa_whole_width, 1, false);
fill path_out;
fet_endchar;
-fet_beginchar ("Quart thin mihead", "s2miThin");
+fet_beginchar ("Quarter thin mihead", "s2miThin");
draw_mi_head (solfa_quarter_width, 1, false);
fill path_out;
fet_endchar;
-
-%%%% fa head
-
+%%%% 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#);
path path_a, path_b, path_c;
pair nw_dist, nw;
- pickup pencircle scaled solfa_pen_thick;
+ 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;
labels (1, 2, 3, 4);
nw = unitvector (z1 - z3);
- nw_dist = (nw rotated 90) * 0.5 solfa_pen_thick;
-
- path_a := (z1 - (0,1) * thickness_factor * solfa_pen_thick) --
- (z2 - (0,1) * thickness_factor * solfa_pen_thick);
- path_b := (z2 - (1,0) * 0.5 solfa_pen_thick) --
- (z3 - (1,0) * 0.5 solfa_pen_thick);
- 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;
+ 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}
-- rt z2{up}
.. top z2{left}
-- top z1{left}
- .. {down}cycle;
+ .. cycle;
p_down_in := p_up_in rotated 180 shifted (w, 0);
p_down_out := p_up_out rotated 180 shifted (w, 0);
charwx := charwd;
enddef;
+save fa_weight;
+fa_weight := 1.75;
fet_beginchar ("Whole fa up head", "u0fa");
- draw_fa_head (solfa_whole_width, 1.5);
+ 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, 1.5);
+ 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, 1.5);
+ 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, 1.5);
+ 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, 1.5);
+ 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, 1.5);
+ draw_fa_head (solfa_quarter_width, fa_weight);
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.
-
+%
+% 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);
+ draw_outside_ellipse (1.49 - puff_up_factor / 3.0, 31, 0.707, 0);
if not filled:
- undraw_inside_ellipse (3.25, 33, 0.81, 2.5 stafflinethickness#);
+ undraw_inside_ellipse (2.5 - puff_up_factor / 3.0, 31, 0.707,
+ 3.5 stafflinethickness#);
fi
- draw_staff (-2, 2, 0);
+ draw_staff_if_debugging (-2, 2);
enddef;
fet_beginchar ("Whole solhead", "s0sol");
fet_endchar;
-fet_beginchar ("Quart solhead", "s2sol");
+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;
- pickup pencircle scaled solfa_pen_thick;
+ 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;
labels (range 1 thru 4);
- p_in := (z1 + 0.5 solfa_pen_thick * (1, -thickness_factor))
- -- (z2 + 0.5 solfa_pen_thick * (-1, -thickness_factor))
- -- (z3 + 0.5 solfa_pen_thick * (-1, thickness_factor))
- -- (z4 + 0.5 solfa_pen_thick * (1, thickness_factor))
+ 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
enddef;
+save la_weight;
+la_weight := 2;
+
fet_beginchar ("Whole lahead", "s0la");
- draw_la_head (solfa_whole_width, 3);
+ 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, 3);
+ draw_la_head (solfa_half_width, la_weight);
fill p_out;
unfill p_in;
fet_endchar;
-fet_beginchar ("Quart lahead", "s2la");
- draw_la_head (solfa_quarter_width, 3);
+fet_beginchar ("Quarter lahead", "s2la");
+ draw_la_head (solfa_quarter_width, la_weight);
fill p_out;
fet_endchar;
fet_endchar;
-fet_beginchar ("Quart lahead", "s2laThin");
+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;
- save nw_dist, sw_dist, nw, sw;
path p_in, p_out, p_top, p_top_in;
- pair nw_dist, sw_dist, nw, sw;
save cone_height;
cone_height = 0.64;
- pickup pencircle scaled solfa_pen_thick;
+ 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;
x3 = x1;
top y3 = h;
x5 = x1;
- y5 = y1 + thickness_factor * 0.5 * solfa_pen_thick;
+ 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) * 0.5 solfa_pen_thick;
- sw_dist = (sw rotated 90) * 0.5 solfa_pen_thick;
+ nw_dist = (nw rotated 90) * pen_radius;
+ sw_dist = (sw rotated 90) * pen_radius;
- p_top := (z2 - sw_dist)
+ p_top := (z2 + nw * pen_radius)
.. (top z3){right}
- .. (z4 - nw_dist);
+ .. (z4 - sw * pen_radius);
- p_top_in := (z2 + sw_dist * thickness_factor) {- sw}
- .. ((top z3) - (0,1) * thickness_factor * 0.5 solfa_pen_thick) {right}
- .. (z4 + nw_dist * thickness_factor){- nw};
+ 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;
+ 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_in := z5
+ -- z6
+ .. bot z3
+ .. z7
+ -- cycle;
p_out := bot z1
.. (z1 + nw_dist)
-- (z2 + nw_dist)
.. lft z2
- .. (z2 - sw_dist){direction 0 of p_top}
+ .. (z2 + nw * pen_radius){direction 0 of p_top}
& p_top
- & {direction infinity of p_top}(z4 - nw_dist)
+ & {direction infinity of p_top}(z4 - sw * pen_radius)
.. rt z4
.. (z4 + sw_dist)
-- (z1 + sw_dist)
enddef;
+save ti_weight;
+ti_weight := 2;
+
fet_beginchar ("Whole up tihead", "s0ti");
- draw_ti_head (solfa_whole_width, 1, 3);
+ 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, 3);
+ 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, 3);
+ draw_ti_head (solfa_half_width, -1, ti_weight);
fill p_out;
unfill p_in;
fet_endchar;
-fet_beginchar ("Quart up tihead", "u2ti");
- draw_ti_head (solfa_quarter_width, 1, 3);
+fet_beginchar ("Quarter up tihead", "u2ti");
+ draw_ti_head (solfa_quarter_width, 1, ti_weight);
fill p_out;
fet_endchar;
-fet_beginchar ("Quart down tihead", "d2ti");
- draw_ti_head (solfa_quarter_width, -1, 3);
+fet_beginchar ("Quarter down tihead", "d2ti");
+ draw_ti_head (solfa_quarter_width, -1, ti_weight);
fill p_out;
fet_endchar;
fet_endchar;
-fet_beginchar ("Quart thin up tihead", "u2tiThin");
+fet_beginchar ("Quarter thin up tihead", "u2tiThin");
draw_ti_head (solfa_quarter_width, 1, 1);
fill p_out;
fet_endchar;
-fet_beginchar ("Quart thin down tihead", "d2tiThin");
+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));
-fet_endgroup ("noteheads");
+ 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_weight;
+funk_mi_weight := 1.9;
+
+fet_beginchar ("Whole up Funk mihead", "u0miFunk");
+ draw_mi_head (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_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_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_notehead_width,
+ funk_mi_weight, true);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Quarter Funk mihead", "s2miFunk");
+ draw_mi_head (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_if_debugging (-2, 2);
+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;
+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");
%
projects / lilypond.git / blobdiff