-% -*- Fundamental -*-
-
-accreg_dot_size# := .5interline#;
-
-% 'strange turning path' in accBayanbase:
-% mf '\mode=laserjet; input feta11'
-% accreg_linethickness# := 1.3stafflinethickness#;
-
-% so, do thinner lines, for now
-accreg_linethickness# := 1.2stafflinethickness#;
-
-% This dimention is the same on all registersymbols.
-% The different symbols should calculate their other
-% dimensions from this and accreg_dot_size
-accreg_lh# := 1.0interline#;
-
-define_pixels(accreg_dot_size, accreg_linethickness, accreg_lh);
-pen accreg_pen;
-accreg_pen := pencircle xscaled accreg_linethickness yscaled 0.7accreg_linethickness;
-
-fet_beginchar("accDiscant", "accDiscant", "accDiscant")
- save r, sx;
- r# = 3/2accreg_lh#;
- define_pixels(r);
-% set_char_box(r#, r#, 2r#, 0);
- set_char_box(r#, r#, 0r#, 2r#); %% arg3 = under linjen, arg4 = over
- pickup accreg_pen;
- draw fullcircle scaled 2r;
- sx = cosd(19.471221);
- draw (-sx*r, r/3)--(sx*r, r/3);
- draw (-sx*r, -r/3)--(sx*r, -r/3);
- currentpicture := currentpicture shifted (0, r);
+% Feta (not the Font-En-Tja) music font -- draw accordion symbols
+% This file is part of LilyPond, the GNU music typesetter.
+%
+% Copyright (C) 1998--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
+%
+% 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, or you can redistribute it 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
+% 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/>.
+
+fet_begingroup ("accordion");
+
+%
+% These dimensions are the same for all register symbols.
+% The different symbols should calculate their other dimensions from them.
+%
+
+accreg_dot_size# := .5 staff_space#;
+accreg_linethickness# := 1.3 stafflinethickness#;
+accreg_lh# := 1.0 staff_space#;
+
+define_pixels (accreg_dot_size, accreg_linethickness, accreg_lh);
+
+
+fet_beginchar ("accordion register discant", "discant")
+ save r, pat, lh, lt;
+ path pat;
+
+ r# = 3/2 accreg_lh#;
+ define_pixels (r);
+
+ set_char_box (r# + accreg_linethickness# / 2,
+ r# + accreg_linethickness# / 2,
+ 0.7 accreg_linethickness# / 2,
+ 2 r# + 0.7 accreg_linethickness# / 2);
+
+ lh = vround (2/3 r);
+ lt = vround (0.7 accreg_linethickness);
+ d := vround (0.7 accreg_linethickness / 2);
+ h := 3 lh + lt - d;
+ b := w := (3 lh + hround accreg_linethickness) / 2;
+
+ penpos1 (hround accreg_linethickness, 0);
+ penpos2 (lt, 90);
+ penpos3 (hround accreg_linethickness, 180);
+ penpos4 (lt, 270);
+
+ z1r = (w, 0.5 [-d, h]);
+ z2r = (0, h);
+ z3r = (-b, 0.5 [-d, h]);
+ z4r = (0, -d);
+
+ penlabels (1, 2, 3, 4);
+
+ % mf doesn't handle pixel dropouts in outline objects, so we use
+ % `draw' if not called by mpost
+ if known miterlimit:
+ fill z1r
+ .. z2r
+ .. z3r
+ .. z4r
+ .. cycle;
+ unfill z1l
+ .. z2l
+ .. z3l
+ .. z4l
+ .. cycle;
+ else:
+ pickup pencircle xscaled accreg_linethickness yscaled lt;
+ draw z1
+ .. z2
+ .. z3
+ .. z4
+ .. cycle;
+ fi;
+
+ pat := z4{right}
+ .. z1{up}
+ .. {left}z2;
+
+ pickup penrazor scaled lt rotated 90;
+
+ top z5 = pat intersectionpoint ((0, lh + lt - d) -- (w, lh + lt - d));
+ z6 = z5 xscaled -1;
+ bot z7 = pat intersectionpoint ((0, 2 lh - d) -- (w, 2 lh - d));
+ z8 = z7 xscaled -1;
+
+ labels (5, 6, 7, 8);
+
+ draw z5
+ -- z6;
+ draw z7
+ -- z8;
fet_endchar;
-fet_beginchar("accDot", "accDot", "accDot")
- set_char_box(accreg_dot_size#, accreg_dot_size#, 0, 0);
+
+fet_beginchar ("accordion register dot", "dot")
+ set_char_box (accreg_dot_size# / 2, accreg_dot_size# / 2,
+ accreg_dot_size# / 2, accreg_dot_size# / 2);
+
pickup pencircle scaled accreg_dot_size;
- draw(0, 0);
+
+ rt x0 = hround (accreg_dot_size / 2);
+ top y0 = vround (accreg_dot_size / 2);
+
+ drawdot z0;
fet_endchar;
-fet_beginchar("accFreebase", "accFreebase", "accFreebase")
- save r;
- r#= accreg_lh#;
- define_pixels(r);
- set_char_box(r#, r#, 0, 2r#);
- pickup accreg_pen;
- draw fullcircle scaled 2r;
- draw (-r, 0)--(r, 0);
- currentpicture := currentpicture shifted (0, r);
+
+fet_beginchar ("accordion register freebass", "freebass")
+ save r, lh, lt;
+
+ r# = accreg_lh#;
+ define_pixels (r);
+
+ set_char_box (r# + accreg_linethickness# / 2,
+ r# + accreg_linethickness# / 2,
+ 0.7 accreg_linethickness# / 2,
+ 2 r# + 0.7 accreg_linethickness# / 2);
+
+ lh = vround r;
+ lt = vround (0.7 accreg_linethickness);
+ d := vround (0.7 accreg_linethickness / 2);
+ h := 2 lh + lt - d;
+ b := w := (2 lh + hround accreg_linethickness) / 2;
+
+ penpos1 (hround accreg_linethickness, 0);
+ penpos2 (lt, 90);
+ penpos3 (accreg_linethickness, 180);
+ penpos4 (lt, 270);
+
+ z1r = (w, 0.5 [-d, h]);
+ z2r = (0, h);
+ z3r = (-b, 0.5 [-d, h]);
+ z4r = (0, -d);
+
+ penlabels (1, 2, 3, 4);
+
+ % mf doesn't handle pixel dropouts in outline objects, so we use
+ % `draw' if not called by mpost
+ if known miterlimit:
+ fill z1r
+ .. z2r
+ .. z3r
+ .. z4r
+ .. cycle;
+ unfill z1l
+ .. z2l
+ .. z3l
+ .. z4l
+ .. cycle;
+ else:
+ pickup pencircle xscaled accreg_linethickness yscaled lt;
+ draw z1
+ .. z2
+ .. z3
+ .. z4
+ .. cycle;
+ fi;
+
+ pickup penrazor scaled lt rotated 90;
+
+ draw z1
+ -- z3;
fet_endchar;
-fet_beginchar("accStdbase", "accStdbase", "accStdbase")
- save r, sx;
- r# = 2accreg_lh#;
- define_pixels(r);
- sx = cosd 30 ;
- set_char_box(r#, r#, 0, 2r#);
- pickup accreg_pen;
- draw fullcircle scaled 2r;
- draw (-r, 0)--(r, 0);
- draw (-sx*r, r/2)--(sx*r, r/2);
- draw (-sx*r, -r/2)--(sx*r, -r/2);
- currentpicture := currentpicture shifted (0, r);
+
+fet_beginchar ("accordion register stdbass", "stdbass")
+ save r, p, lh, lt;
+ path pat;
+
+ r# = 2 accreg_lh#;
+ define_pixels (r);
+
+ set_char_box (r# + accreg_linethickness# / 2,
+ r# + accreg_linethickness# / 2,
+ 0.7 accreg_linethickness# / 2,
+ 2 r# + 0.7 accreg_linethickness# / 2);
+
+ lh = vround (1/2 r);
+ lt = vround (0.7 accreg_linethickness);
+ d := vround (0.7 accreg_linethickness / 2);
+ h := 4 lh + lt - d;
+ b := w := (4 lh + hround accreg_linethickness) / 2;
+
+ penpos1 (hround accreg_linethickness, 0);
+ penpos2 (lt, 90);
+ penpos3 (hround accreg_linethickness, 180);
+ penpos4 (lt, 270);
+
+ z1r = (w, 0.5 [-d, h]);
+ z2r = (0, h);
+ z3r = (-b, 0.5 [-d, h]);
+ z4r = (0, -d);
+
+ penlabels (1, 2, 3, 4);
+
+ % mf doesn't handle pixel dropouts in outline objects, so we use
+ % `draw' if not called by mpost
+ if known miterlimit:
+ fill z1r
+ .. z2r
+ .. z3r
+ .. z4r
+ .. cycle;
+ unfill z1l
+ .. z2l
+ .. z3l
+ .. z4l
+ .. cycle;
+ else:
+ pickup pencircle xscaled accreg_linethickness yscaled lt;
+ draw z1
+ .. z2
+ .. z3
+ .. z4
+ .. cycle;
+ fi;
+
+ pat := z4{right}
+ .. z1{up}
+ .. {left}z2;
+
+ pickup penrazor scaled lt rotated 90;
+
+ top z5 = pat intersectionpoint ((0, lh + lt - d) -- (w, lh + lt - d));
+ z6 = z5 xscaled -1;
+ bot z7 = pat intersectionpoint ((0, 3 lh - d) -- (w, 3 lh - d));
+ z8 = z7 xscaled -1;
+
+ labels (5, 6, 7, 8);
+
+ draw z1
+ -- z3;
+ draw z5
+ -- z6;
+ draw z7
+ -- z8;
fet_endchar;
-fet_beginchar("accBayanbase", "accBayanbase", "accBayanbase")
- save lh;
- lh = accreg_lh;
-% set_char_box(accreg_lh#, accreg_lh#, 3accreg_lh#, 0);
- set_char_box(accreg_lh#, accreg_lh#, 0, 3accreg_lh#);
- pickup pencircle scaled accreg_linethickness;
- draw (0, 0)--(2w, 0)--(2w, 3accreg_lh)--(0, 3accreg_lh)--(0, 0);
- draw (0, accreg_lh)--(2w, accreg_lh);
- draw (0, 2accreg_lh)--(2w, 2accreg_lh);
- currentpicture := currentpicture shifted (-w, 0);% -3lh);
+
+fet_beginchar ("accordion register bayanbass", "bayanbass")
+ save lh, lt;
+
+ lh = vround accreg_lh;
+ lt = vround accreg_linethickness;
+
+ set_char_box (accreg_lh# + accreg_linethickness# / 2,
+ accreg_lh# + accreg_linethickness# / 2,
+ accreg_linethickness# / 2,
+ 3 accreg_lh# + accreg_linethickness# / 2);
+
+ d := vround (accreg_linethickness# / 2);
+ h := 3 lh + lt - d;
+
+ draw_rounded_block ((-w, -d), (-w + lt, h), lt);
+ draw_rounded_block ((w - lt, -d), (w, h), lt);
+
+ pickup penrazor scaled lt rotated 90;
+
+ bot z1 = (-w + lt / 2, -d);
+ bot z2 = (-w + lt / 2, lh - d);
+ bot z3 = (-w + lt / 2, 2 lh - d);
+ bot z4 = (-w + lt / 2, 3 lh - d);
+
+ bot z5 = (w - lt / 2, -d);
+ bot z6 = (w - lt / 2, lh - d);
+ bot z7 = (w - lt / 2, 2 lh - d);
+ bot z8 = (w - lt / 2, 3 lh - d);
+
+ draw z1
+ -- z5;
+ draw z2
+ -- z6;
+ draw z3
+ -- z7;
+ draw z4
+ -- z8;
fet_endchar;
-def def_B(expr w, h) =
- pickup pencircle scaled 0.1pt;
- penpos10(thin, -90);
- penpos11(thin, -90);
- penpos12(thick, 0);
- penpos13(thin, 90);
- penpos14(thin, 90);
- penpos15(thick, 180);
- penpos16(thin, -90);
- penpos17(thin, -90);
- penpos18(thick, 0);
- penpos19(thick, 0);
+
+def def_B (expr w, h) =
+ pickup pencircle scaled 0.15 linethickness;
+
+ penpos10 (thin, -90);
+ penpos11 (thin, -90);
+ penpos12 (thick, 0);
+ penpos13 (thin, 90);
+ penpos14 (thin, 90);
+
+ penpos15 (thick, 180);
+ penpos16 (thin, -90);
+ penpos17 (thin, -90);
+ penpos18 (thick, 0);
+ penpos19 (thick, 0);
+
z10 = (0, 0);
- z11 = (cOne*w, 0);
- z12 = (w, .5mb*h);
- z13 = (cTwo*w, mb*h);
- z14 = (2thick, mb*h);
- z15 = (.94w, h-.5mt*h);
- z16 = z13 + (0, mt*h);
+ z11 = (cOne * w, 0);
+ z12 = (w, .5 mb * h);
+ z13 = (cTwo * w, mb * h);
+ z14 = (2 thick, mb * h);
+ z15 = (.94 w, h - .5 mt * h);
+ z16 = z13 + (0, mt * h);
z17 = (0, h);
- z18 = (1.5thick, 0);
- z19 = (1.5thick, h);
+ z18 = (1.5 thick, 0);
+ z19 = (1.5 thick, h);
enddef;
-def def_S(expr w, h) =
- pickup pencircle scaled 0.02pt;
- penpos1(thin, 180);
- penpos2(thin, -90);
- penpos3(thick, 0);
- penpos4(.5thick, 90);
- penpos5(thick, 0);
- penpos6(thin, -90);
- penpos7(thin, 180);
- penpos8(thin, 180);
- penpos9(thin, 0);
+
+def def_S (expr w, h) =
+ pickup pencircle scaled 0.03 linethickness;
+
+ penpos1 (thin, 180);
+ penpos2 (thin, -90);
+ penpos3 (thick, 0);
+ penpos4 (.5 thick, 90);
+ penpos5 (thick, 0);
+ penpos6 (thin, -90);
+ penpos7 (thin, 180);
+ penpos8 (thin, 180);
+ penpos9 (thin, 0);
+
z1 = (0, hs);
- z2 = (w/2, 0);
- z3 = (w-.5thick, .5mb*h);
- z4 = (w/2, mb*h);
- z5 = (.5thick, h-.5mt*h);
- z6 = (w/2, h);
- z7 = (w, h-hs);
+ z2 = (w / 2, 0);
+ z3 = (w - .5 thick, .5 mb * h);
+ z4 = (w / 2, mb * h);
+ z5 = (.5 thick, h - .5 mt * h);
+ z6 = (w / 2, h);
+ z7 = (w, h - hs);
z8 = (0, y2r);
z9 = (w, y6l);
+
path bue, bueoverst;
- bue=z2{left}..z1{up};
- numeric t;
- t:=xpart(bue intersectiontimes(z8l--z7l));
- show t;
- bueoverst=z6{right}..z7{down};
+
+ bue := z2{left}
+ .. z1{up};
+
+ t := xpart (bue intersectiontimes (z8l -- z7l));
+
+ bueoverst := z6{right}
+ .. z7{down};
enddef;
+
def def_some_vars =
save hs, mb, mt, thin, thick, height, width, cOne, cTwo;
- width = .8staffsize;
- height = 2.4interline;
- thin = 0.05interline;
- thick = 0.2interline;
- hs = 0.4interline;
+ save bx, hx;
+
+ width = .8 (4 staff_space);
+ height = 2.4 staff_space;
+ % URG. smaller sizes should be wider and fatter
+ % thin = 0.05 staff_space;
+ % thick = 0.2 staff_space;
+
+ 4 hx + bx = 1.15;
+ 10 hx + bx = 1;
+ fatten := designsize * hx + bx * 1.2;
+ thick := 0.2 staff_space * fatten;
+
+ % urg: mustn't ever go thinner than blot!
+ thin# := blot_diameter#;
+ define_pixels (thin);
+
+ hs = 0.4 staff_space;
mb = .53;
- mt = .47;
+ mt = .47;
cOne = 0.65;
cTwo = 0.60;
enddef;
-fet_beginchar("accSB", "accSB", "accSB")
- set_char_box(.4staffsize#, .4staffsize#, 0, 2.4interline#);
- def_some_vars;
- def_B(.35width, .7height);
- penstroke z10e--z11e{right}..z12e{up}..z13e{left}--z14e;
- penstroke z13e{right}..z15e{up}..z16e{left}--z17e;
- penstroke z18e--z19e;
- pickup pencircle scaled .5thick;
- drawdot (.37width, .10thick);
- currentpicture := currentpicture shifted(.40width, 0);
-
- def_S(.35width, .7height);
-% penlabels(1, 2, 3, 4, 5, 6, 7, 8, 9);
- filldraw z1r--z8r--z8l--subpath(t, 1) of bue--cycle;
- filldraw subpath(t, 1) of bueoverst--z7l--z9r--z9l--cycle;
- penstroke z1e{down}..z2e{right}..z3e
- ..z4e
- ..z5e..z6e{right}...z7e{down};
- pickup pencircle scaled .5thick;
- drawdot (.37width, .10thick);
- currentpicture := currentpicture shifted (-.40width, -.85height);
- draw (-.5width, 0)--(.5width, 0)--(.5width, -height)
- --(-.5width, -height)--(-.5width, 0);
- currentpicture := currentpicture shifted (0, 2.4interline);
-fet_endchar;
-fet_beginchar("accBB", "accBB", "accBB")
- set_char_box(.4staffsize#, .4staffsize#, 0, 2.4interline#);
- def_some_vars;
- def_B(.35width, .7height);
- penstroke z10e--z11e{right}..z12e{up}..z13e{left}--z14e;
- penstroke z13e{right}..z15e{up}..z16e{left}--z17e;
- penstroke z18e--z19e;
- pickup pencircle scaled .5thick;
- drawdot(.37width, .10thick);
- currentpicture := currentpicture shifted (.40width, 0);
- penstroke z10e--z11e{right}..z12e{up}..z13e{left}--z14e;
- penstroke z13e{right}..z15e{up}..z16e{left}--z17e;
- penstroke z18e--z19e;
- drawdot(.37width, .10thick);
- currentpicture := currentpicture shifted(-.40width, -.85height);
- draw (-.5width, 0)--(.5width, 0)--(.5width, -height)
- --(-.5width, -height)--(-.5width, 0);
- currentpicture := currentpicture shifted (0, 2.4interline);
-fet_endchar;
+fet_beginchar ("accordion oldEE", "oldEE")
+ save r, pp, ir, lh, lt, stroke_width;
+
+ r# = staff_space#;
+ define_pixels (r);
+
+ lr = .4 staff_space - linethickness;
+ ir = .6 staff_space;
+ stroke_width = .05 staff_space + .5 linethickness;
+ set_char_box (r# + accreg_linethickness# / 2,
+ r# + accreg_linethickness# / 2,
+ 0, 2 r# + 0.7 accreg_linethickness#);
-fet_beginchar("accOldEE", "accOldEE", "accOldEE")
- set_char_box(interline#, interline#, 0, 2interline#);
- show w;
- show h;
- r = interline;
- lr = .3interline;
- ir = .6interline;
- pickup accreg_pen;
- draw fullcircle scaled 2r;
- pickup penrazor;
- filldraw fullcircle scaled lr;
- z1 = (ir, 0);
- z2 = (0, 0) + ir*(dir 45);
- z3 = (0, ir);
- numeric pp;
- for pp := 0 step 45 until 360:
- filldraw fullcircle scaled lr shifted (ir*(dir pp));
+ z1 = (0, 0);
+ z2 = (0, ir);
+ z3 = (0, -ir);
+
+ penpos1 (blot_diameter, 0);
+ penpos2 (stroke_width + blot_diameter, 0);
+ penpos3 (stroke_width + blot_diameter, 0);
+
+ pickup pencircle scaled (lr + blot_diameter);
+
+ for pp := 0 step 45 until 135:
+ drawdot z2 rotated pp;
+ drawdot z3 rotated pp;
+
+ penstroke (z2e
+ -- z1e
+ -- z3e) rotated pp;
endfor;
- for pp := 0 step 45 until 360:
- filldraw ((0, 0)--(.2lr, ir)--(-.2lr, ir)--cycle) rotated pp;
- endfor
- currentpicture := currentpicture shifted (0, r);
+
+ pickup pencircle scaled lr;
+
+ drawdot (0, 0);
+
+ currentpicture := currentpicture shifted (0, h / 2);
+
+ lh = vround (2 r);
+ lt = vround (0.7 accreg_linethickness);
+
+ h := lh + lt;
+ b := w := (lh + hround accreg_linethickness) / 2;
+
+ penpos10 (hround accreg_linethickness, 0);
+ penpos11 (lt, 90);
+ penpos12 (hround accreg_linethickness, 180);
+ penpos13 (lt, 270);
+
+ z10r = (w, h / 2);
+ z11r = (0, h);
+ z12r = (-b, h / 2);
+ z13r = (0, 0);
+
+ % penlabels (1, 2, 10, 11, 12, 13);
+
+ % mf doesn't handle pixel dropouts in outline objects, so we use
+ % `draw' if not called by mpost
+ if known miterlimit:
+ fill z10r
+ .. z11r
+ .. z12r
+ .. z13r
+ .. cycle;
+ unfill z10l
+ .. z11l
+ .. z12l
+ .. z13l
+ .. cycle;
+ else:
+ pickup pencircle xscaled accreg_linethickness yscaled lt;
+ draw z10
+ .. z11
+ .. z12
+ .. z13
+ .. cycle;
+ fi;
fet_endchar;
-fet_beginchar("accOldEES", "accOldEES", "accOldEES")
- set_char_box(interline#, interline#, 0, 2interline#);
- save r, shy;
- r = interline;
- shy = .3;
- pickup accreg_pen;
- draw fullcircle scaled 2r;
- currentpicture := currentpicture shifted (w/2, shy*h);
- save thin, thick, sw, ch, cw, mb, mt;
- ch = .6h;
- cw = .8w;
- thin = .05cw;
- thick = .17w;
- mb = .53; mt = .47;
- sw = .8thick;
- z1 = (0, ch-.5thin); penpos1 (thin, -90);
- z2 = (.7cw, y1); penpos2 (thin, -90);
- z3 = (cw, (mb+.5mt)*ch); penpos3(thick, -180);
- z4 = (.65cw, mb*ch); penpos4(thin, 90);
- z5 = (sw+thick, mb*ch); penpos5(thin, 90);
- z6 = (.9cw, .5mb*ch); penpos6(thick, 0);
- z7 = (1.2cw, 0); penpos7(thin, 90);
- z8 = (1.3cw, .2mb*ch); penpos8(thin, 180);
- penlabels(1, 2, 3, 4, 5, 6, 7, 8);
- pickup pencircle scaled 0.001pt;
- filldraw (0, 0)--(0, thin)--(sw, thin)--(sw, ch-thin)
- --(sw+thick, ch-thin)--(sw+thick, thin)
- --(2sw+thick, thin)--(2sw+thick, 0)--cycle;
- penstroke z1e--z2e{right}..z3e..z4e{left}--z5e;
- penstroke z4e{right}..z6e{down}..z7e{right}..z8e{up};
- currentpicture := currentpicture shifted (-w/2, -shy*h);
- currentpicture := currentpicture shifted (0, r);
+
+fet_beginchar ("accordion push", "push");
+ save width, height;
+
+ height# := 2.0 staff_space# + 3.0 stafflinethickness#;
+ width# := 0.4 height#;
+
+ define_pixels(height, width);
+
+ save linewidth;
+
+ linewidth# := stafflinethickness# + .05 staff_space#;
+ define_whole_blacker_pixels (linewidth);
+
+ set_char_box (width#, 0,
+ 0, height#);
+
+ pickup pencircle scaled linewidth;
+
+ lft x1 = -width;
+ top y1 = height;
+
+ rt x2 = 0;
+ y2 = 0.5 * (y1 + y3);
+
+ x3 = x1;
+ bot y3 = 0;
+
+ save nw_offset, ne_offset;
+ pair nw_offset, ne_offset;
+ save sw_offset, se_offset, line_radius;
+ pair sw_offset, se_offset;
+
+ line_radius := linewidth / 2;
+ nw_offset := line_radius * unitvector (z1 - z2);
+ ne_offset := nw_offset rotated -90;
+ sw_offset := line_radius * unitvector (z3 - z2);
+ se_offset := sw_offset rotated 90;
+
+ z4 = ((z1 - ne_offset)
+ -- (z2 - ne_offset))
+ intersectionpoint
+ ((z2 - se_offset)
+ -- (z3 - se_offset));
+
+ fill z1 + ne_offset
+ -- z2 + ne_offset
+ .. rt z2 {down}
+ .. z2 + se_offset
+ -- z3 + se_offset
+ .. z3 + sw_offset {- se_offset}
+ .. z3 - se_offset
+ -- z4
+ -- z1 - ne_offset
+ .. z1 + nw_offset {ne_offset}
+ .. cycle;
fet_endchar;
+
+
+fet_beginchar ("accordion pull", "pull");
+ save width, height;
+
+ height# := 2.0 staff_space# + 3.0 stafflinethickness#;
+ width# := 0.4 height#;
+
+ define_pixels(height, width);
+
+ save linewidth;
+
+ linewidth# := stafflinethickness# + .05 staff_space#;
+ define_whole_blacker_pixels (linewidth);
+
+ set_char_box (width# - linewidth#, linewidth#,
+ 0, height#);
+
+ pickup pencircle scaled linewidth;
+
+ save penradius;
+ penradius := linewidth / 2;
+
+ rt x1 = linewidth;
+ bot y1 = 0;
+
+ x2 = x1;
+ top y2 = height;
+
+ lft x3= -width + linewidth;
+ y3 = y2;
+
+ x4 = x3;
+ y4 = y2 - linewidth;
+
+ x5 = x1;
+ y5 = y4;
+
+ fill z1 + penradius * right {up}
+ -- z2 + penradius * right {up}
+ .. z2 + penradius * up {left}
+ -- z3 + penradius * up {left}
+ .. z3 + penradius * left {down}
+ -- z4 + penradius * left {down}
+ .. z4 + penradius * down {right}
+ -- z5 + penradius * (down + left)
+ -- z1 + penradius * left {down}
+ .. z1 + penradius * down {right}
+ .. cycle;
+fet_endchar;
+
+fet_endgroup ("accordion");
projects / lilypond.git / blobdiff