%
-fet_begingroup("floogbars")
+fet_begingroup("flags")
+save outer_path;
+path outer_path;
-save flag_angle, flare;
-save hip_thickness, hip_depth, hip_width;
-save foot_thickness, foot_depth, foot_width;
+% Flags pointing down overlap with the notehead (in x-direction), so
+% the down-flag can be bigger
+upflag_width# = .650 black_notehead_width# + stemthickness#/2;
+downflag_width# = .833 black_notehead_width# + stemthickness#/2;
-flag_angle = 32;
+right_upflag_space# = .0 upflag_width#;
+right_downflag_space# = .0 downflag_width#;
-hip_thickness# = 1.2 stafflinethickness#;
-foot_thickness# = blot_diameter#;
-flare# = 1.0 interline#;
+%
+% Flags pointing down cannot overlap with the notehead in y-direction,
+% so they have less slant.
-hip_depth# = 15/7 interline#;
-hip_width# = 7/8 interline# + hip_thickness# /2 + stemthickness#/2;
+% Because of optical illusion, the utmost flag (bottom for
+% down-pointing, top for up-pointing) should be smaller than the other
+% flags. Adobe Sonata doesn't do this correctly. (Instead they have
+% an extension flag, which looks less elegant)
+%
-foot_depth# = flare# + 15/7 interline#;
-foot_width# = .885 hip_width#;
+save hip_thickness, foot_thickness;
+hip_thickness# = 1.3 stemthickness#;
+foot_thickness# = 1.0 hip_thickness#;
+%
+% Inspired by Adobe Sonata and [Wanske]
+% for example, see POSTSCRIPT Language -- program design,
+% page 119, and [Wanske], p 41,42
+%
+def draw_flag(expr center, flare,
+ dims, hip_depth, foot_wid, hip_thickness, foot_thickness)=
+ clearxy;
+ save c ;
+ c = 0.7;
+ penpos1(flare, 90);
+ penpos2(whatever, 0);
+ x2r - x2l = hip_thickness;
+ penpos3(foot_thickness, 0.0) ;
-define_pixels(flare,
- hip_depth, hip_width, hip_thickness,
- foot_depth, foot_width, foot_thickness
-);
+ z1r = center;
+ z2r = center + (xpart dims, -ypart(dims) * hip_depth);
+ z3r = center + (xpart(dims) * foot_wid, -ypart dims);
-%treq;
+ outer_path := z3r{curl c} .. z2r{up} .. {up}z1r;
+ penlabels(1, 2, 3);
+ fill z1l{curl 0}
+ ..tension 1.1 .. z2l{down} ..
+ {curl c} simple_serif(z3l, z3r, 80) &
+ outer_path & z1r -- cycle;
+enddef;
%
-% Inspired by Adobe Sonata,
-% for example, see POSTSCRIPT Language -- program design,
-% page 119
-%
-def draw_eight_flag =
- penpos0(stemthickness, 0);
- penpos1(flare, 90);
- penpos2(hip_thickness, 0);
- penpos3(foot_thickness, 0) ;
- penpos4(stemthickness, 0);
-
- z0r = z1r;
- z0 = (0,0);
- z2 = (hip_width, -hip_depth);
- z3 = (foot_width, -foot_depth);
- z4r = z1l;
-
- save bot_dir, bot_path;
- pair bot_dir;
- path bot_path;
- bot_path := z2{down} .. z3;
- bot_dir := direction 1 of bot_path;
-
- fill z1l{dir -flag_angle} .. z2l{down} ..
- z3l{bot_dir} .. z3r{-bot_dir} ..
- {up}z2r .. {up}z1r ..
- z0l{down} -- z4l -- cycle;
-
- ;
+% TODO: calc intersectpoint (see TeX book, p. 137)
+% TODO: calc incision_depth
+%
+
+def add_flag(expr yoff, flare, hip_wid_multiplier,
+ hip_dep_multiplier,
+ intersectpoint, hip_thickness, foot_thickness) =
+ begingroup
+ save prev_center, prev_xextreme, prev_yextreme;
+ save rel_foot, ip, center, incision_depth;
+ save prev_hipwid, prev_footdep, prev_hipdep, wid, dep, hip_dep;
+ save hip_dep_ratio, foot_wid_ratio;
+ pair prev_center, center, foot, prev_xextreme, prev_yextreme;
+ pair ip, rel_foot;
+
+ incision_depth = 1.013;
+ prev_center = point 2 of outer_path;
+ prev_xextreme = point 1 of outer_path;
+ prev_yextreme = point 0 of outer_path;
+ prev_hipwid = xpart (prev_xextreme - prev_center);
+ prev_footdep = -ypart (prev_yextreme - prev_center);
+ prev_hipdep = -ypart(prev_xextreme - prev_center);
+ ip = point intersectpoint of outer_path;
+
+ wid = prev_hipwid * hip_wid_multiplier;
+ hip_dep = prev_hipdep * hip_dep_multiplier;
+
+ center = prev_center + (0,yoff);
+ rel_foot = incision_depth [(wid, hip_dep), ip - center];
+ dep = -ypart(rel_foot);
+ foot_wid_ratio = xpart(rel_foot ) / wid;
+ hip_dep_ratio = hip_dep / dep;
+ draw_flag(center, flare,
+ (wid, dep), hip_dep_ratio, foot_wid_ratio,
+ hip_thickness, foot_thickness);
+ endgroup
enddef;
+fet_beginchar("8th Flag (up)", "u3", "eighthflag")
+ save flare,
+ hip_depth_ratio, hip_width,
+ foot_depth, foot_width_ratio;
+
+ flare# = 1.0 staff_space#;
+ hip_depth_ratio = .72;
+ foot_width_ratio = .8;
+ hip_width# = upflag_width# - hip_thickness#/2;
+
+ foot_depth# = 3 staff_space#;
+
+ set_char_box(stemthickness# /2, hip_width#
+ + stemthickness#/2 + right_upflag_space#,
+ foot_depth# + foot_thickness#/2, stemthickness#/2)
+
+ define_pixels(flare, hip_width, hip_thickness,
+ foot_depth, foot_thickness);
+ draw_flag((stemthickness/2,0), flare,
+ (hip_width, foot_depth),
+ hip_depth_ratio, foot_width_ratio, hip_thickness, foot_thickness);
+
+ pickup pencircle scaled stemthickness;
+ draw (0, 0) .. (0,-1 staff_space);
+fet_endchar;
+
+fet_beginchar("16th Flag (up)", "u4", "sixteenthflag")
+ save flare,
+ hip_depth_ratio, hip_width,
+ foot_depth, foot_width_ratio;
+ save flagspace, total_depth, flag_count;
+ total_depth# = 3.5 staff_space#;
+ flag_count = 2;
+ flare# = .85 staff_space#;
+ flagspace# = .85 staff_space#;
+ hip_depth_ratio = .72 ;
+ hip_width# = upflag_width# - hip_thickness#/2;
+ flagspace# + foot_depth# = total_depth#;
+
+ foot_width_ratio = .8;
+
+ set_char_box(stemthickness# /2, hip_width#
+ + stemthickness#/2 + right_upflag_space#,
+ total_depth# + foot_thickness#/2, stemthickness#/2)
+
+ define_pixels(flare, hip_width, hip_thickness,
+ flagspace,
+ foot_depth, foot_thickness);
+ draw_flag((stemthickness/2,- flagspace), flare,
+ (hip_width, foot_depth),
+ hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
+
+ add_flag(flagspace, flare,
+ .97, 1.00, 1.25, hip_thickness, foot_thickness);
+
+ pickup pencircle scaled stemthickness;
+ draw (0, 0) .. (0,-2 staff_space);
+fet_endchar;
+
+
+fet_beginchar("32nd Flag (up)", "u5", "thirtysecondflag")
+ save flare,
+ hip_depth_ratio, hip_width,
+ foot_depth, foot_width_ratio;
+ save flagspace, total_depth, flag_count;
+ flag_count = 3;
+ total_depth#=4.25 staff_space#;
+ flare# = .85 staff_space#;
+ flagspace# = .87 staff_space#;
+ hip_depth_ratio = .72 ;
+ hip_width# = upflag_width# - hip_thickness#/2;
+ (flag_count-1) * flagspace# + foot_depth# = total_depth#;
+
+ foot_width_ratio = .8;
+
+ set_char_box(stemthickness# /2, hip_width#
+ + stemthickness#/2 + right_upflag_space#,
+ total_depth# + foot_thickness#/2, stemthickness#/2)
+
+ define_pixels(flare, hip_width, hip_thickness,
+ flagspace,
+ foot_depth, foot_thickness);
+
+ draw_flag((stemthickness/2,- 2 flagspace), flare,
+ (hip_width, foot_depth),
+ hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
+
+ add_flag(flagspace, flare,
+ .97, 1.00, 1.25, hip_thickness, foot_thickness);
+
+ add_flag(flagspace, flare,
+ .95, 1.05, 1.25, hip_thickness, foot_thickness);
+
+ pickup pencircle scaled stemthickness;
+ draw (0, 0) .. (0,-2 staff_space);
+fet_endchar;
+
+fet_beginchar("64th Flag (up)", "u6", "sixtyfourthflag")
+ save flare,
+ hip_depth_ratio, hip_width,
+ foot_depth, foot_width_ratio;
+ save flagspace, total_depth, flag_count;
+
+ flag_count = 4;
+ flare# = .85 staff_space#;
+ flagspace# = .9 staff_space#;
+ hip_depth_ratio = .72 ;
+ hip_width# = upflag_width# - hip_thickness#/2;
+ total_depth# = 5.25 staff_space#;
+ (flag_count-1) * flagspace# + foot_depth# = total_depth#;
+
+ foot_width_ratio = .8;
+
+ set_char_box(stemthickness# /2, hip_width#
+ + stemthickness#/2 + right_upflag_space#,
+ total_depth# + foot_thickness#/2, stemthickness#/2)
+
+ define_pixels(flare, hip_width, hip_thickness,
+ flagspace,
+ foot_depth, foot_thickness);
+
+ draw_flag((stemthickness/2,- (flag_count-1)* flagspace), flare,
+ (hip_width, foot_depth),
+ hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
+
+ add_flag(flagspace, flare,
+ .97, 1.00, 1.3, hip_thickness, foot_thickness);
+
+ add_flag(flagspace, flare,
+ 1.00, 1.00, 1.25, hip_thickness, foot_thickness);
+ add_flag(flagspace, flare,
+ .95, 1.05, 1.25, hip_thickness, foot_thickness);
+ pickup pencircle scaled stemthickness;
+ draw (0, 0) .. (0,-2 staff_space);
+fet_endchar;
+
+fet_beginchar("8th (down)", "d3", "deighthflag")
+ save flare,
+ hip_depth_ratio, hip_width,
+ foot_depth, foot_width_ratio;
+ save flagspace, total_depth, flag_count;
+
+ flag_count = 1;
+ flare# = .99 staff_space#;
+ flagspace# = .9 staff_space#;
+ hip_depth_ratio = .72 ;
+ hip_width# = downflag_width# - hip_thickness#/2;
+ total_depth# = 2.85 staff_space#;
+ (flag_count-1) * flagspace# + foot_depth# = total_depth#;
+
+ foot_width_ratio = .8;
+
+ set_char_box(stemthickness# /2, hip_width#
+ + stemthickness#/2 + right_downflag_space#,
+ total_depth# + foot_thickness#/2, stemthickness#/2)
+
+ define_pixels(flare, hip_width, hip_thickness,
+ flagspace,
+ foot_depth, foot_thickness);
+
+ draw_flag((stemthickness/2,- (flag_count-1) *flagspace), flare,
+ (hip_width, foot_depth),
+ hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
+
+ pickup pencircle scaled stemthickness;
+ draw (0, 0) .. (0,-2 staff_space);
+ y_mirror_char;
+fet_endchar;
+
+%%%%%%%%
+%
+%
+%
+% Single Stroke for Short Appogiatura
+%
+%
+%
+
+fet_beginchar("grace dash (up)", "ugrace", "gracedash")
+ save flare,
+ hip_depth_ratio, hip_width,
+ foot_depth;
+
+ flare# = 1.0 staff_space#;
+ hip_depth_ratio = .72;
+ hip_width# = upflag_width# - hip_thickness#/2;
+
+ foot_depth# = 3 staff_space#;
+
+ define_pixels(flare, hip_width, hip_thickness,
+ foot_depth, foot_thickness);
+
+ set_char_box(hip_width# * hip_depth_ratio,
+ hip_width# + stemthickness#/2 + right_upflag_space#,
+ foot_depth# * hip_depth_ratio, -flare#)
+
+ pickup pencircle scaled 1.5 stemthickness;
+ draw (-b ,-d) ..
+ (w, h);
+fet_endchar;
+
+fet_beginchar("grace dash (down)", "dgrace", "dgracedash")
+ save flare, hip_depth_ratio, hip_width, foot_depth;
+ save flagspace, total_depth, flag_count;
+
+ flag_count = 1;
+ flare# = .99 staff_space#;
+ flagspace# = .9 staff_space#;
+ hip_depth_ratio = .72 ;
+ hip_width# = downflag_width# - hip_thickness#/2;
+ total_depth# = 2.85 staff_space#;
+ (flag_count-1) * flagspace# + foot_depth# = total_depth#;
+
+ foot_width_ratio = .8;
+
+ define_pixels(flare, hip_width, hip_thickness,
+ flagspace, foot_depth);
-fet_beginchar("8th Flag (up)", "3u", "eighthflag")
- set_char_box(stemthickness# /2, hip_width# + hip_thickness#/2,
- foot_depth# + foot_thickness#/2, stemthickness#/2)
+ set_char_box(hip_width# * hip_depth_ratio,
+ hip_width# + stemthickness#/2 + right_downflag_space#,
+ foot_depth# * hip_depth_ratio, -flare#)
- draw_eight_flag;
- penlabels(0, 1, 2, 3, 4);
+ pickup pencircle scaled 1.5 stemthickness;
+ draw (-b, -d) .. (w,h);
+ y_mirror_char;
fet_endchar;
-fet_beginchar("8th Flag (down)", "3d", "deighthflag")
- set_char_box(stemthickness# /2, hip_width# + hip_thickness#/2,
- foot_depth# + foot_thickness#/2, stemthickness#/2)
+fet_beginchar("16th (down)", "d4", "dsixteenthflag")
+ save flare,
+ hip_depth_ratio, hip_width,
+ foot_depth, foot_width_ratio;
+ save flagspace, total_depth, flag_count;
+
+ flag_count = 2;
+ flare# = .8 staff_space#;
+ flagspace# = .9 staff_space#;
+ hip_depth_ratio = .85 ;
+ hip_width# = downflag_width# - hip_thickness#/2;
+ total_depth# = 3.0 staff_space#;
+ (flag_count-1) * flagspace# + foot_depth# = total_depth#;
+
+ foot_width_ratio = .95;
+
+ set_char_box(stemthickness# /2, hip_width#
+ + stemthickness#/2 + right_downflag_space#,
+ total_depth# + foot_thickness#/2, stemthickness#/2)
- draw_eight_flag;
+ define_pixels(flare, hip_width, hip_thickness,
+ flagspace,
+ foot_depth, foot_thickness);
+
+ draw_flag((stemthickness/2,- (flag_count-1) *flagspace), flare,
+ (hip_width, foot_depth),
+ hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
+ add_flag(flagspace, flare,
+ .95, 1.00, 1.25, hip_thickness, foot_thickness);
+
+
+
+ pickup pencircle scaled stemthickness;
+ draw (0, 0) .. (0,-2 staff_space);
y_mirror_char;
fet_endchar;
-fet_endgroup("floogbars")
+fet_beginchar("32nd (down)", "d5", "dthirtysecondflag")
+ save flare,
+ hip_depth_ratio, hip_width,
+ foot_depth, foot_width_ratio;
+ save flagspace, total_depth, flag_count;
+
+ flag_count = 3;
+ flare# = .84 staff_space#;
+ flagspace# = .9 staff_space#;
+ hip_depth_ratio = .85 ;
+ hip_width# = downflag_width# - hip_thickness#/2;
+ total_depth# = 3.85 staff_space#;
+ (flag_count-1) * flagspace# + foot_depth# = total_depth#;
+
+ foot_width_ratio = .95;
+
+ set_char_box(stemthickness# /2, hip_width#
+ + stemthickness#/2 + right_downflag_space#,
+ total_depth# + foot_thickness#/2, stemthickness#/2)
+
+ define_pixels(flare, hip_width, hip_thickness,
+ flagspace,
+ foot_depth, foot_thickness);
+
+ draw_flag((stemthickness/2,- (flag_count-1) *flagspace), flare,
+ (hip_width, foot_depth),
+ hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
+ add_flag(flagspace, flare,
+ .97, 1.00, 1.25, hip_thickness, foot_thickness);
+
+ add_flag(flagspace, flare,
+ .95, 1.05, 1.25, hip_thickness, foot_thickness);
+
+
+
+ pickup pencircle scaled stemthickness;
+ draw (0, 0) .. (0,-2 staff_space);
+ y_mirror_char;
+fet_endchar;
+fet_beginchar("64th (down)", "d6", "dsixtyfourthflag")
+ save flare,
+ hip_depth_ratio, hip_width,
+ foot_depth, foot_width_ratio;
+ save flagspace, total_depth, flag_count;
+
+ flag_count = 4;
+ flare# = .8 staff_space#;
+ flagspace# = .9 staff_space#;
+ hip_depth_ratio = .85 ;
+ hip_width# = downflag_width# - hip_thickness#/2;
+ total_depth# = 4.35 staff_space#;
+ (flag_count-1) * flagspace# + foot_depth# = total_depth#;
+
+ foot_width_ratio = .98;
+
+ set_char_box(stemthickness# /2, hip_width#
+ + stemthickness#/2 + right_downflag_space#,
+ total_depth# + foot_thickness#/2, stemthickness#/2)
+
+ define_pixels(flare, hip_width, hip_thickness,
+ flagspace,
+ foot_depth, foot_thickness);
+
+ draw_flag((stemthickness/2,- (flag_count-1) *flagspace), flare,
+ (hip_width, foot_depth),
+ hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
+ add_flag(flagspace, flare,
+ .97, 1.20, 1.175, hip_thickness, foot_thickness);
+ add_flag(flagspace, flare,
+ .97, 1.10, 1.175, hip_thickness, foot_thickness);
+
+ add_flag(.98 flagspace, flare,
+ .91, 1.05, 1.2, hip_thickness, foot_thickness);
+
+
+
+ pickup pencircle scaled stemthickness;
+ draw (0, 0) .. (0,-2 staff_space);
+ y_mirror_char;
+fet_endchar;
+
+% ustem?
+%
+%
+% Stem characters so we can compose metronome markings with Feta
+% entirely.
+%
+
+fet_beginchar("stem (up)", "stem", "stem")
+ set_char_box(stemthickness#/2, stemthickness#/2, 0, 3.5staff_space#);
+ pickup pencircle scaled stemthickness;
+ draw (0, 0.2staff_space) .. (0, 3.5staff_space);
+fet_endchar;
+
+% do we want this?
+fet_beginchar("stem (down)", "dstem", "dstem")
+ set_char_box(stemthickness#/2, stemthickness#/2, 3.5staff_space#, 0);
+ pickup pencircle scaled stemthickness;
+ draw (0, -0.2staff_space) .. (0, -3.5staff_space);
+fet_endchar;
+
+
+fet_endgroup("flags");
projects / lilypond.git / blobdiff