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% -%-Fundamental-%- -*-Metafont-*-
% parmesan-scripts.mf -- implement ancient script symbols
%
% source file of LilyPond's pretty-but-neat music font
%
% (c) 2002--2009 Juergen Reuter <reuter@ipd.uka.de>
%
fet_begingroup ("scripts");
fet_beginchar ("ictus", "ictus");
save ht, wd;
ht# = .35 staff_space#;
wd# = linethickness#;
define_pixels (wd, ht);
save ellipse, T;
path ellipse;
transform T;
T := identity xscaled wd
yscaled blot_diameter;
pickup pencircle transformed T;
ellipse := fullcircle transformed T;
set_char_box (wd# / 2, wd# / 2, ht# / 2, ht# / 2);
x1 = 0;
top y1 = ht / 2;
x2 = 0;
bot y2 = -ht / 2;
fill get_subpath (ellipse, up, down, z1)
-- get_subpath (ellipse, down, up, z2)
-- cycle;
labels (1, 2);
fet_endchar;
def draw_accentus =
save thick, thin, ht, wd;
thin# = 1 linethickness#;
thick# = 1.2 linethickness#;
ht# = .35 staff_space#;
wd# = .25 staff_space#;
define_pixels (wd, ht, thin, thick);
z1 = z2 = (-wd / 2 + thin / 2, -ht / 2 + thin / 2);
z3 = z4 = (wd / 2 - thick / 2, ht / 2 - thick / 2);
penpos1 (thin, angle (z1 - z3));
penpos2 (thin, angle (z1 - z3) + 90);
penpos3 (thick, angle (z3 - z1) + 90);
penpos4 (thick, angle (z3 - z1));
fill z1r
.. z2r
-- z3l
.. z4r
.. z3r
-- z2l
.. cycle;
set_char_box (wd#/2, wd#/2, ht#/2, ht#/2);
enddef;
fet_beginchar ("accentus up", "uaccentus");
draw_accentus;
penlabels (1, 2, 3, 4);
fet_endchar;
fet_beginchar ("accentus down", "daccentus");
draw_accentus;
y_mirror_char;
fet_endchar;
def draw_half_circle (expr diam) =
save diameter, thick;
diameter# = diam;
define_pixels (diameter);
thick = 0.6 linethickness;
penpos1 (thick, 0);
penpos2 (thick, -90);
penpos3 (thick, -180);
z1r = (diameter / 2, 0);
z2r = (0, -diameter / 2);
z3r = (-diameter / 2, 0);
penstroke z1e{down}
.. z2e{left}
.. z3e{up};
enddef;
fet_beginchar ("half circle", "usemicirculus");
draw_half_circle (5/16 staff_space#);
currentpicture := currentpicture yscaled -1;
set_char_box (diameter# / 2, diameter# / 2,
0, diameter# / 2);
fet_endchar;
fet_beginchar ("half circle", "dsemicirculus");
draw_half_circle (5/16 staff_space#);
set_char_box (diameter# / 2, diameter# / 2,
diameter# / 2, 0);
penlabels (1, 2, 3);
fet_endchar;
fet_beginchar ("circle", "circulus");
save diameter, thick;
diameter# = 5/16 staff_space#;
define_pixels (diameter);
thick = 0.6 linethickness;
fill fullcircle scaled diameter;
unfill fullcircle scaled (diameter - 2 thick);
set_char_box (diameter# / 2, diameter# / 2,
diameter# / 2, diameter# / 2);
fet_endchar;
fet_beginchar ("augmentum", "augmentum");
save diameter;
diameter# = 0.25 staff_space#;
define_pixels (diameter);
pickup pencircle scaled diameter;
drawdot (0, 0);
set_char_box (diameter# / 2, diameter# / 2,
diameter# / 2, diameter# / 2);
fet_endchar;
def draw_signum_congruentiae =
set_char_box (0.50 staff_space# + 1.5 linethickness#,
0.50 staff_space# + 1.5 linethickness#,
2.5 linethickness#,
2.00 staff_space# + 3.5 linethickness#);
save ellipse, pat;
path ellipse, pat;
ellipse := fullcircle xscaled 1.0 linethickness
yscaled 5.0 linethickness
rotated -35;
z1 = (+0.50 staff_space, +2.00 staff_space);
z2 = (+0.00 staff_space, +2.00 staff_space);
z3 = (-0.50 staff_space, +1.50 staff_space);
z4 = (-0.25 staff_space, +1.00 staff_space);
z5 = (+0.10 staff_space, +0.80 staff_space);
z6 = (+0.00 staff_space, +0.00 staff_space);
pat := z1{-1, +1}
.. z2
.. z3
.. z4
.. z5
.. z6;
% we avoid cusps originally present in `draw pat'
fill get_subpath (ellipse,
-direction 0 of pat, direction 0 of pat, z1)
.. get_subpoint (ellipse, direction 1 of pat, z2)
{direction 1 of pat}
.. get_subpoint (ellipse, direction 2 of pat, z3)
{direction 2 of pat}
.. get_subpoint (ellipse, direction 3 of pat, z4)
{direction 3 of pat}
.. get_subpoint (ellipse, direction 4 of pat, z5)
{direction 4 of pat}
.. get_subpath (ellipse,
direction 4.8 of pat, -direction 5 of pat, z6)
.. get_subpoint (ellipse, -direction 4 of pat, z5)
{-direction 4 of pat}
.. get_subpoint (ellipse, -direction 3 of pat, z4)
{-direction 3 of pat}
.. get_subpoint (ellipse, -direction 2.5 of pat, point 2.5 of pat)
.. get_subpoint (ellipse, -direction 1 of pat, z2)
{-direction 1 of pat}
.. cycle;
pickup pencircle scaled 3.0 linethickness;
z7 = (-0.5 staff_space, +0.0 staff_space);
z8 = (+0.5 staff_space, +0.0 staff_space);
drawdot z7;
drawdot z8;
enddef;
fet_beginchar ("signum congruentiae up", "usignumcongruentiae");
draw_signum_congruentiae;
labels (1, 2, 3, 4, 5, 6, 7, 8);
fet_endchar;
fet_beginchar ("signum congruentiae down", "dsignumcongruentiae");
draw_signum_congruentiae;
xy_mirror_char;
fet_endchar;
fet_endgroup ("scripts");
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