X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=mf%2Ffeta-noteheads.mf;h=8f4cad6e3422ac85c5582bbf38fb14280f27174f;hb=HEAD;hp=e66a39221251159960382eddf384ea56889b2999;hpb=8673827dbc6883c29679fedb094297127cd6db4f;p=lilypond.git diff --git a/mf/feta-noteheads.mf b/mf/feta-noteheads.mf index e66a392212..8f4cad6e34 100644 --- a/mf/feta-noteheads.mf +++ b/mf/feta-noteheads.mf @@ -1,15 +1,14 @@ -% 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 +% Copyright (C) 1997--2015 Jan Nieuwenhuizen % & Han-Wen Nienhuys % & Juergen Reuter % -% -% 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 @@ -22,108 +21,29 @@ 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; @@ -156,47 +76,77 @@ 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); + % 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; @@ -204,98 +154,95 @@ 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, @@ -303,63 +250,26 @@ fet_beginchar ("Whole notehead", "s0"); 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; - - %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -368,58 +278,26 @@ fet_beginchar ("Whole diamondhead", "s0diamond"); 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; - - %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -578,19 +456,10 @@ enddef; 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; @@ -612,14 +481,14 @@ enddef; 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; @@ -637,17 +506,17 @@ def draw_closed_triangle_head (expr dir) = 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; @@ -724,21 +593,21 @@ enddef; 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; @@ -852,28 +721,10 @@ fet_beginchar ("Whole Crossed notehead", "s0cross"); 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; @@ -884,28 +735,10 @@ fet_beginchar ("Half Crossed notehead", "s1cross"); 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#; @@ -913,25 +746,10 @@ fet_beginchar ("Crossed notehead", "s2cross"); 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; @@ -964,10 +782,12 @@ fet_beginchar ("X-Circled notehead", "s2xcircle"); 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; @@ -975,38 +795,35 @@ fet_beginchar ("X-Circled notehead", "s2xcircle"); 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# = 1.75 stafflinethickness#; +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#; @@ -1015,33 +832,65 @@ solfa_whole_width := 1.0; solfa_half_width := 1.0; solfa_quarter_width := 1.0; -def draw_do_head (expr width_factor, dir) = + +%%% 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; + save left_dist, right_dist, bottom_dist; path p_in, p_out; - pair left_dist, right_dist; + pair 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); bot y1 = -d; y1 = y2; lft x1 = 0; rt x2 = w; top y3 = h; - x3 =.5 [x1, x2]; - - left_dist = (unitvector (z3 - z1) rotated 90) * 0.5 solfa_pen_thick; - right_dist = (unitvector (z2 - z3) rotated 90) * 0.5 solfa_pen_thick; - - p_in := (((z1 - left_dist) -- (z3 - left_dist)) intersectionpoint - (top z1 -- top z2)) - -- ((top z1 -- top z2) intersectionpoint - ((z2 - right_dist) -- (z3 - right_dist))) - -- (((z2 - right_dist) -- (z3 - right_dist)) intersectionpoint - ((z1 - left_dist) -- (z3 - left_dist))) + 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 @@ -1055,7 +904,6 @@ def draw_do_head (expr width_factor, dir) = .. lft z1{down} .. {right}cycle; - labels (1, 2, 3); charwx := charwd; @@ -1065,77 +913,131 @@ def draw_do_head (expr width_factor, dir) = fi; enddef; +save do_weight; +do_weight := 2; + fet_beginchar ("Whole dohead", "s0do"); - draw_do_head (solfa_whole_width, 1); + 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); + 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); + 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 ("Quart dohead", "d2do"); - draw_do_head (solfa_quarter_width, -1); +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 ("Quart dohead", "u2do"); - draw_do_head (solfa_quarter_width, 1); +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. +% Consequently, we have made them all the same width. +% % stem attachment: h/2 % - -def draw_re_head (expr width_factor, dir) = +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)) + p_in := (z1 + pen_radius * (1, -1 * offset)) -- rt z2{down} - .. top z3 + .. ((top z3) + (0, offset * pen_radius)) .. lft z4{up} - -- (z5 + 0.5 solfa_pen_thick * (-1, -1)) + -- (z5 + pen_radius * (-1, -1 * offset)) -- cycle; p_out := lft z1 @@ -1156,49 +1058,106 @@ def draw_re_head (expr width_factor, dir) = enddef; +save re_weight; +re_weight := 2; + fet_beginchar ("Whole rehead", "s0re"); - draw_re_head (solfa_whole_width, 1); + 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); + 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); + 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 ("Quart rehead", "u2re"); - draw_re_head (solfa_quarter_width, 1); +fet_beginchar ("Quarter thin rehead", "u2reThin"); + draw_re_head (solfa_quarter_width, 1, 1); fill p_out; fet_endchar; -fet_beginchar ("Quart rehead", "d2re"); - draw_re_head (solfa_quarter_width, -1); +fet_beginchar ("Quarter thin rehead", "d2reThin"); + draw_re_head (solfa_quarter_width, -1, 1); fill p_out; fet_endchar; -def draw_mi_head (expr width_factor) = +%%%% 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#); - 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; @@ -1209,75 +1168,146 @@ def draw_mi_head (expr width_factor) = y3 = y1; top y4 = h; + % 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; - z5 = whatever [z1, z4] - ne_dist; - z5 = whatever [z1, z2] - 1.5 se_dist; + 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 - z1 = -(z7 - z3); + z5 = path_a intersectionpoint path_d; + z7 = path_b intersectionpoint path_c; labels (range 1 thru 8); - path_in := z5 - -- z6 - -- z7 - -- z8 - -- cycle; + 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 - .. (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); + 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); + draw_mi_head (solfa_quarter_width, mi_weight, false); + fill path_out; + unfill path_in; +fet_endchar; + + +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, mi_weight, true); + fill path_out; + unfill path_in; +fet_endchar; + + +fet_beginchar ("Half mirror mihead", "s1miMirror"); + draw_mi_head (solfa_quarter_width, mi_weight, true); + fill path_out; + unfill path_in; +fet_endchar; + + +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; + unfill path_in; +fet_endchar; + + +fet_beginchar ("Half thin mihead", "s1miThin"); + draw_mi_head (solfa_quarter_width, 1, false); fill path_out; unfill path_in; fet_endchar; -fet_beginchar ("Quart mihead", "s2mi"); - draw_mi_head (solfa_quarter_width); +fet_beginchar ("Quarter thin mihead", "s2miThin"); + draw_mi_head (solfa_quarter_width, 1, false); fill path_out; fet_endchar; -def draw_fa_head (expr width_factor) = +%%%% 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; - 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; @@ -1293,13 +1323,18 @@ def draw_fa_head (expr width_factor) = labels (1, 2, 3, 4); nw = unitvector (z1 - z3); - nw_dist = (nw rotated 90) * 0.5 solfa_pen_thick; - - p_up_in := (((z1 - nw_dist) -- (z3 - nw_dist)) intersectionpoint - (bot z1 -- bot z2)) - -- (((z1 - nw_dist) -- (z3 - nw_dist)) intersectionpoint - (lft z3 -- lft z2)) - -- (z2 + 0.5 solfa_pen_thick * (-1, -1)) + 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} @@ -1310,7 +1345,7 @@ def draw_fa_head (expr width_factor) = -- 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); @@ -1319,54 +1354,138 @@ def draw_fa_head (expr width_factor) = charwx := charwd; enddef; +save fa_weight; +fa_weight := 1.75; fet_beginchar ("Whole fa up head", "u0fa"); - draw_fa_head (solfa_whole_width); + 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); + 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); + 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); + 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); + 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); + 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; -def draw_la_head (expr width_factor) = + +%%%% 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 (1.49 - puff_up_factor / 3.0, 31, 0.707, 0); + if not filled: + undraw_inside_ellipse (2.5 - puff_up_factor / 3.0, 31, 0.707, + 3.5 stafflinethickness#); + fi + draw_staff_if_debugging (-2, 2); +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; - 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; @@ -1381,10 +1500,10 @@ def draw_la_head (expr width_factor) = labels (range 1 thru 4); - p_in := (z1 + 0.5 solfa_pen_thick * (1, -1)) - -- (z2 + 0.5 solfa_pen_thick * (-1, -1)) - -- (z3 + 0.5 solfa_pen_thick * (-1, 1)) - -- (z4 + 0.5 solfa_pen_thick * (1, 1)) + 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 @@ -1399,37 +1518,69 @@ def draw_la_head (expr width_factor) = enddef; +save la_weight; +la_weight := 2; + fet_beginchar ("Whole lahead", "s0la"); - draw_la_head (solfa_whole_width); + 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); + 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 ("Quart lahead", "s2la"); - draw_la_head (solfa_quarter_width); +fet_beginchar ("Quarter lahead", "s2laThin"); + draw_la_head (solfa_quarter_width, 1); fill p_out; fet_endchar; -def draw_ti_head (expr width_factor, dir) = +%%%% 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; - save nw_dist, sw_dist, nw, sw; - path p_in, p_out, p_top; - pair nw_dist, sw_dist, nw, sw; + 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; - 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; @@ -1439,35 +1590,51 @@ def draw_ti_head (expr width_factor, dir) = 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) * 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 - nw * offset * pen_radius) + .. (z3 - (0,1) * pen_radius) {right} + .. (z4 + sw * offset * pen_radius); - p_in := (((z1 - nw_dist) -- (z2 - nw_dist)) intersectionpoint - ((z1 - sw_dist) -- (z4 - sw_dist))) - -- (((z1 - nw_dist) -- (z2 - nw_dist)) intersectionpoint - ((z2 + sw_dist) .. {right}(bot z3))) + 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 - .. (((bot z3){right} .. (z4 + nw_dist)) intersectionpoint - ((z1 - sw_dist) -- (z4 - sw_dist))) + .. 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) @@ -1481,39 +1648,1080 @@ def draw_ti_head (expr width_factor, dir) = enddef; +save ti_weight; +ti_weight := 2; + fet_beginchar ("Whole up tihead", "s0ti"); - draw_ti_head (solfa_whole_width, 1); + 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); + 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); + 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 ("Quart up tihead", "u2ti"); - draw_ti_head (solfa_quarter_width, 1); +fet_beginchar ("Quarter thin up tihead", "u2tiThin"); + draw_ti_head (solfa_quarter_width, 1, 1); fill p_out; fet_endchar; -fet_beginchar ("Quart down tihead", "d2ti"); - draw_ti_head (solfa_quarter_width, -1); +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_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");