mf/feta-banier.mf

   1 % flags
   2 %
   3
   4
   5 fet_begingroup("flags")
   6 save outer_path;
   7 path outer_path;
   8 % Flags pointing down overlap with  the notehead (in x-direction), so
   9 % the down-flag can be bigger
  10 upflag_width# = .750 black_notehead_width# + stemthickness#/2;
  11 downflag_width# = .833 black_notehead_width# + stemthickness#/2;
  12
  13 right_upflag_space# = .2 upflag_width#;
  14 right_downflag_space# = .2 downflag_width#;
  15
  16 %
  17 % Flags pointing down cannot overlap with the notehead in y-direction,
  18 % so they have less slant.
  19
  20 %
  21 % Because of optical illusion, the utmost flag (bottom for
  22 % down-pointing, top for up-pointing) should be smaller than the other
  23 % flags.  Adobe Sonata doesn't do this correctly.  (Instead they have an
  24 % extension flag. Yuck)
  25 %
  26
  27 save hip_thickness, foot_thickness;
  28 hip_thickness# = 1.3 stemthickness#;
  29 foot_thickness# =  hip_thickness#;
  30
  31 %
  32 % Inspired by Adobe Sonata and [Wanske]
  33 % for example, see POSTSCRIPT Language -- program design,
  34 % page 119, and [Wanske], p 41,42
  35 %
  36 def draw_flag(expr center, flare,
  37         dims, hip_depth, foot_wid, hip_thickness, foot_thickness)=
  38         clearxy;
  39
  40         penpos1(flare, 90);
  41         penpos2(whatever, 0);
  42         x2r - x2l = hip_thickness;
  43         penpos3(foot_thickness, 0) ;
  44
  45         z1r  = center;
  46         z2r = center + (xpart dims, -ypart(dims) * hip_depth);
  47         z3r = center + (xpart(dims) * foot_wid, -ypart dims);
  48
  49         outer_path := z3r{curl 0} .. z2r{up} .. {up}z1r;
  50
  51         penlabels(1, 2, 3);
  52         fill z1l{curl 0}
  53                 ..tension 1.1 .. z2l{down} ..
  54                 {curl 0} simple_serif(z3l, z3r, 80) &
  55                 outer_path & z1r -- cycle;
  56 enddef;
  57
  58 %
  59 % TODO: calc intersectpoint
  60 % TODO: calc incision_depth
  61 %
  62 def add_flag(expr yoff, flare, hip_wid_multiplier,
  63                 hip_dep_multiplier,
  64                 intersectpoint, hip_thickness, foot_thickness) =
  65         begingroup
  66         save prev_center, prev_xextreme, prev_yextreme;
  67         save rel_foot, ip, center, incision_depth;
  68         save prev_hipwid, prev_footdep, prev_hipdep, wid, dep, hip_dep;
  69         save hip_dep_ratio, foot_wid_ratio;
  70         pair prev_center, center, foot, prev_xextreme, prev_yextreme;
  71         pair ip, rel_foot;
  72
  73         incision_depth = 1.013;
  74         prev_center = point 2 of outer_path;
  75         prev_xextreme = point 1 of outer_path;
  76         prev_yextreme = point 0 of outer_path;
  77         prev_hipwid = xpart (prev_xextreme - prev_center);
  78         prev_footdep = -ypart (prev_yextreme - prev_center);
  79         prev_hipdep = -ypart(prev_xextreme - prev_center);
  80         ip = point intersectpoint of outer_path;
  81
  82         wid = prev_hipwid * hip_wid_multiplier;
  83         hip_dep = prev_hipdep * hip_dep_multiplier;
  84
  85         center = prev_center + (0,yoff);
  86         rel_foot = incision_depth [(wid, hip_dep), ip - center];
  87         dep = -ypart(rel_foot);
  88         foot_wid_ratio = xpart(rel_foot ) / wid;
  89         hip_dep_ratio = hip_dep / dep;
  90
  91         draw_flag(center, flare,
  92                 (wid, dep), hip_dep_ratio, foot_wid_ratio,
  93                 hip_thickness, foot_thickness);
  94         endgroup
  95 enddef;
  96
  97 fet_beginchar("8th Flag (up)", "u3", "eighthflag")
  98         save flare,
  99                 hip_depth_ratio, hip_width,
 100                 foot_depth, foot_width_ratio;
 101
 102         flare# = 1.0 interline#;
 103         hip_depth_ratio = .72;
 104         foot_width_ratio = .8;
 105         hip_width# = upflag_width# - hip_thickness#/2;
 106
 107         foot_depth# =  3 interline#;
 108
 109         set_char_box(stemthickness# /2, hip_width#
 110                 + stemthickness#/2 + right_upflag_space#,
 111                  foot_depth# + foot_thickness#/2, stemthickness#/2)
 112
 113         define_pixels(flare, hip_width, hip_thickness,
 114                 foot_depth, foot_thickness);
 115         draw_flag((stemthickness/2,0), flare,
 116                 (hip_width, foot_depth),
 117                 hip_depth_ratio, foot_width_ratio, hip_thickness, foot_thickness);
 118
 119         pickup pencircle scaled stemthickness;
 120         draw (0, 0) .. (0,-2 interline);
 121 fet_endchar;
 122
 123 fet_beginchar("16th Flag (up)", "u4", "sixteenthflag")
 124         save flare,
 125                 hip_depth_ratio, hip_width,
 126                 foot_depth, foot_width_ratio;
 127         save flagspace, total_depth, flag_count;
 128         total_depth# = 3.5 interline#;
 129         flag_count = 2;
 130         flare# = .85 interline#;
 131         flagspace# = .85 interline#;
 132         hip_depth_ratio = .72 ;
 133         hip_width# = upflag_width# - hip_thickness#/2;
 134         flagspace# + foot_depth# = total_depth#;
 135
 136         foot_width_ratio = .8;
 137
 138         set_char_box(stemthickness# /2, hip_width#
 139                 + stemthickness#/2 + right_upflag_space#,
 140                 total_depth# + foot_thickness#/2, stemthickness#/2)
 141
 142         define_pixels(flare, hip_width, hip_thickness,
 143                 flagspace,
 144                 foot_depth,  foot_thickness);
 145
 146         draw_flag((stemthickness/2,- flagspace), flare,
 147                 (hip_width, foot_depth),
 148                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 149
 150         add_flag(flagspace, flare,
 151                 .97, 1.00, 1.25, hip_thickness, foot_thickness);
 152
 153         pickup pencircle scaled stemthickness;
 154         draw (0, 0) .. (0,-2 interline);
 155 fet_endchar;
 156
 157
 158 fet_beginchar("32nd Flag (up)", "u5", "thirtysecondflag")
 159         save flare,
 160                 hip_depth_ratio, hip_width,
 161                 foot_depth, foot_width_ratio;
 162         save flagspace, total_depth, flag_count;
 163         flag_count = 3;
 164         total_depth#=4.25 interline#;
 165         flare# = .85 interline#;
 166         flagspace# = .87 interline#;
 167         hip_depth_ratio = .72 ;
 168         hip_width# = upflag_width# - hip_thickness#/2;
 169         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 170
 171         foot_width_ratio = .8;
 172
 173         set_char_box(stemthickness# /2, hip_width#
 174                 + stemthickness#/2 + right_upflag_space#,
 175                 total_depth# + foot_thickness#/2, stemthickness#/2)
 176
 177         define_pixels(flare, hip_width, hip_thickness,
 178                 flagspace,
 179                 foot_depth,  foot_thickness);
 180
 181         draw_flag((stemthickness/2,- 2 flagspace), flare,
 182                 (hip_width, foot_depth),
 183                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 184
 185         add_flag(flagspace, flare,
 186                 .97, 1.00, 1.25, hip_thickness, foot_thickness);
 187
 188         add_flag(flagspace, flare,
 189                 .95, 1.05, 1.25, hip_thickness, foot_thickness);
 190
 191         pickup pencircle scaled stemthickness;
 192         draw (0, 0) .. (0,-2 interline);
 193 fet_endchar;
 194
 195 fet_beginchar("64th Flag (up)", "u6", "sixtyfourthflag")
 196         save flare,
 197                 hip_depth_ratio, hip_width,
 198                 foot_depth, foot_width_ratio;
 199         save flagspace, total_depth, flag_count;
 200
 201         flag_count = 4;
 202         flare# = .85 interline#;
 203         flagspace# = .9 interline#;
 204         hip_depth_ratio = .72 ;
 205         hip_width# = upflag_width# - hip_thickness#/2;
 206         total_depth# = 5.25 interline#;
 207         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 208
 209         foot_width_ratio = .8;
 210
 211         set_char_box(stemthickness# /2, hip_width#
 212                 + stemthickness#/2 + right_upflag_space#,
 213                 total_depth# + foot_thickness#/2, stemthickness#/2)
 214
 215         define_pixels(flare, hip_width, hip_thickness,
 216                 flagspace,
 217                 foot_depth,  foot_thickness);
 218
 219         draw_flag((stemthickness/2,- (flag_count-1)* flagspace), flare,
 220                 (hip_width, foot_depth),
 221                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 222
 223         add_flag(flagspace, flare,
 224                 .97, 1.00, 1.3, hip_thickness, foot_thickness);
 225
 226         add_flag(flagspace, flare,
 227                 1.00, 1.00, 1.25, hip_thickness, foot_thickness);
 228         add_flag(flagspace, flare,
 229                 .95, 1.05, 1.25, hip_thickness, foot_thickness);
 230         pickup pencircle scaled stemthickness;
 231         draw (0, 0) .. (0,-2 interline);
 232 fet_endchar;
 233
 234 fet_beginchar("8th (down)", "d3", "deighthflag")
 235         save flare,
 236                 hip_depth_ratio, hip_width,
 237                 foot_depth, foot_width_ratio;
 238         save flagspace, total_depth, flag_count;
 239
 240         flag_count = 1;
 241         flare# = .99 interline#;
 242         flagspace# = .9 interline#;
 243         hip_depth_ratio = .72 ;
 244         hip_width# = downflag_width# - hip_thickness#/2;
 245         total_depth# = 2.85 interline#;
 246         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 247
 248         foot_width_ratio = .8;
 249
 250         set_char_box(stemthickness# /2, hip_width#
 251                 + stemthickness#/2 + right_downflag_space#,
 252                 total_depth# + foot_thickness#/2, stemthickness#/2)
 253
 254         define_pixels(flare, hip_width, hip_thickness,
 255                 flagspace,
 256                 foot_depth,  foot_thickness);
 257
 258         draw_flag((stemthickness/2,- (flag_count-1) *flagspace), flare,
 259                 (hip_width, foot_depth),
 260                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 261
 262
 263         pickup pencircle scaled stemthickness;
 264         draw (0, 0) .. (0,-2 interline);
 265         y_mirror_char;
 266 fet_endchar;
 267
 268 fet_beginchar("16th (down)", "d4", "dsixteenthflag")
 269         save flare,
 270                 hip_depth_ratio, hip_width,
 271                 foot_depth, foot_width_ratio;
 272         save flagspace, total_depth, flag_count;
 273
 274         flag_count = 2;
 275         flare# = .8 interline#;
 276         flagspace# = .9 interline#;
 277         hip_depth_ratio = .85 ;
 278         hip_width# = downflag_width# - hip_thickness#/2;
 279         total_depth# = 3.0 interline#;
 280         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 281
 282         foot_width_ratio = .95;
 283
 284         set_char_box(stemthickness# /2, hip_width#
 285                 + stemthickness#/2 + right_downflag_space#,
 286                 total_depth# + foot_thickness#/2, stemthickness#/2)
 287
 288         define_pixels(flare, hip_width, hip_thickness,
 289                 flagspace,
 290                 foot_depth,  foot_thickness);
 291
 292         draw_flag((stemthickness/2,- (flag_count-1) *flagspace), flare,
 293                 (hip_width, foot_depth),
 294                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 295         add_flag(flagspace, flare,
 296                 .95, 1.00, 1.25, hip_thickness, foot_thickness);
 297
 298
 299
 300         pickup pencircle scaled stemthickness;
 301         draw (0, 0) .. (0,-2 interline);
 302         y_mirror_char;
 303 fet_endchar;
 304
 305 fet_beginchar("32nd (down)", "d5", "dthirtysecondflag")
 306         save flare,
 307                 hip_depth_ratio, hip_width,
 308                 foot_depth, foot_width_ratio;
 309         save flagspace, total_depth, flag_count;
 310
 311         flag_count = 3;
 312         flare# = .84 interline#;
 313         flagspace# = .9 interline#;
 314         hip_depth_ratio = .85 ;
 315         hip_width# = downflag_width# - hip_thickness#/2;
 316         total_depth# = 3.85 interline#;
 317         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 318
 319         foot_width_ratio = .95;
 320
 321         set_char_box(stemthickness# /2, hip_width#
 322                 + stemthickness#/2 + right_downflag_space#,
 323                 total_depth# + foot_thickness#/2, stemthickness#/2)
 324
 325         define_pixels(flare, hip_width, hip_thickness,
 326                 flagspace,
 327                 foot_depth,  foot_thickness);
 328
 329         draw_flag((stemthickness/2,- (flag_count-1) *flagspace), flare,
 330                 (hip_width, foot_depth),
 331                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 332         add_flag(flagspace, flare,
 333                 .97, 1.00, 1.25, hip_thickness, foot_thickness);
 334
 335         add_flag(flagspace, flare,
 336                 .95, 1.05, 1.25, hip_thickness, foot_thickness);
 337
 338
 339
 340         pickup pencircle scaled stemthickness;
 341         draw (0, 0) .. (0,-2 interline);
 342         y_mirror_char;
 343 fet_endchar;
 344 fet_beginchar("64th (down)", "d6", "dsixtyfourthflag")
 345         save flare,
 346                 hip_depth_ratio, hip_width,
 347                 foot_depth, foot_width_ratio;
 348         save flagspace, total_depth, flag_count;
 349
 350         flag_count = 4;
 351         flare# = .8 interline#;
 352         flagspace# = .9 interline#;
 353         hip_depth_ratio = .85 ;
 354         hip_width# = downflag_width# - hip_thickness#/2;
 355         total_depth# = 4.35 interline#;
 356         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 357
 358         foot_width_ratio = .98;
 359
 360         set_char_box(stemthickness# /2, hip_width#
 361                 + stemthickness#/2 + right_downflag_space#,
 362                 total_depth# + foot_thickness#/2, stemthickness#/2)
 363
 364         define_pixels(flare, hip_width, hip_thickness,
 365                 flagspace,
 366                 foot_depth,  foot_thickness);
 367
 368         draw_flag((stemthickness/2,- (flag_count-1) *flagspace), flare,
 369                 (hip_width, foot_depth),
 370                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 371         add_flag(flagspace, flare,
 372                 .97, 1.20, 1.175, hip_thickness, foot_thickness);
 373         add_flag(flagspace, flare,
 374                 .97, 1.10, 1.175, hip_thickness, foot_thickness);
 375
 376         add_flag(.98 flagspace, flare,
 377                 .91, 1.05, 1.2, hip_thickness, foot_thickness);
 378
 379
 380
 381         pickup pencircle scaled stemthickness;
 382         draw (0, 0) .. (0,-2 interline);
 383         y_mirror_char;
 384 fet_endchar;
 385 fet_endgroup("flags");