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 % Because of optical illusion, the utmost flag (bottom for
  21 % down-pointing, top for up-pointing) should be smaller than the other
  22 % flags.  Adobe Sonata doesn't do this correctly.  (Instead they have
  23 % an extension flag, which looks less elegant)
  24 %
  25
  26 save hip_thickness, foot_thickness;
  27 hip_thickness# = 1.3 stemthickness#;
  28 foot_thickness# =  hip_thickness#;
  29
  30 %
  31 % Inspired by Adobe Sonata and [Wanske]
  32 % for example, see POSTSCRIPT Language -- program design,
  33 % page 119, and [Wanske], p 41,42
  34 %
  35 def draw_flag(expr center, flare,
  36         dims, hip_depth, foot_wid, hip_thickness, foot_thickness)=
  37         clearxy;
  38
  39         penpos1(flare, 90);
  40         penpos2(whatever, 0);
  41         x2r - x2l = hip_thickness;
  42         penpos3(foot_thickness, 0) ;
  43
  44         z1r  = center;
  45         z2r = center + (xpart dims, -ypart(dims) * hip_depth);
  46         z3r = center + (xpart(dims) * foot_wid, -ypart dims);
  47
  48         outer_path := z3r{curl 0} .. z2r{up} .. {up}z1r;
  49
  50         penlabels(1, 2, 3);
  51         fill z1l{curl 0}
  52                 ..tension 1.1 .. z2l{down} ..
  53                 {curl 0} simple_serif(z3l, z3r, 80) &
  54                 outer_path & z1r -- cycle;
  55 enddef;
  56
  57 %
  58 % TODO: calc intersectpoint (see TeX book, p. 137)
  59 % TODO: calc incision_depth
  60 %
  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 staff_space#;
 103         hip_depth_ratio = .72;
 104         foot_width_ratio = .8;
 105         hip_width# = upflag_width# - hip_thickness#/2;
 106
 107         foot_depth# =  3 staff_space#;
 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,-1 staff_space);
 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 staff_space#;
 129         flag_count = 2;
 130         flare# = .85 staff_space#;
 131         flagspace# = .85 staff_space#;
 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         draw_flag((stemthickness/2,- flagspace), flare,
 146                 (hip_width, foot_depth),
 147                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 148
 149         add_flag(flagspace, flare,
 150                 .97, 1.00, 1.25, hip_thickness, foot_thickness);
 151
 152         pickup pencircle scaled stemthickness;
 153         draw (0, 0) .. (0,-2 staff_space);
 154 fet_endchar;
 155
 156
 157 fet_beginchar("32nd Flag (up)", "u5", "thirtysecondflag")
 158         save flare,
 159                 hip_depth_ratio, hip_width,
 160                 foot_depth, foot_width_ratio;
 161         save flagspace, total_depth, flag_count;
 162         flag_count = 3;
 163         total_depth#=4.25 staff_space#;
 164         flare# = .85 staff_space#;
 165         flagspace# = .87 staff_space#;
 166         hip_depth_ratio = .72 ;
 167         hip_width# = upflag_width# - hip_thickness#/2;
 168         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 169
 170         foot_width_ratio = .8;
 171
 172         set_char_box(stemthickness# /2, hip_width#
 173                 + stemthickness#/2 + right_upflag_space#,
 174                 total_depth# + foot_thickness#/2, stemthickness#/2)
 175
 176         define_pixels(flare, hip_width, hip_thickness,
 177                 flagspace,
 178                 foot_depth,  foot_thickness);
 179
 180         draw_flag((stemthickness/2,- 2 flagspace), flare,
 181                 (hip_width, foot_depth),
 182                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 183
 184         add_flag(flagspace, flare,
 185                 .97, 1.00, 1.25, hip_thickness, foot_thickness);
 186
 187         add_flag(flagspace, flare,
 188                 .95, 1.05, 1.25, hip_thickness, foot_thickness);
 189
 190         pickup pencircle scaled stemthickness;
 191         draw (0, 0) .. (0,-2 staff_space);
 192 fet_endchar;
 193
 194 fet_beginchar("64th Flag (up)", "u6", "sixtyfourthflag")
 195         save flare,
 196                 hip_depth_ratio, hip_width,
 197                 foot_depth, foot_width_ratio;
 198         save flagspace, total_depth, flag_count;
 199
 200         flag_count = 4;
 201         flare# = .85 staff_space#;
 202         flagspace# = .9 staff_space#;
 203         hip_depth_ratio = .72 ;
 204         hip_width# = upflag_width# - hip_thickness#/2;
 205         total_depth# = 5.25 staff_space#;
 206         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 207
 208         foot_width_ratio = .8;
 209
 210         set_char_box(stemthickness# /2, hip_width#
 211                 + stemthickness#/2 + right_upflag_space#,
 212                 total_depth# + foot_thickness#/2, stemthickness#/2)
 213
 214         define_pixels(flare, hip_width, hip_thickness,
 215                 flagspace,
 216                 foot_depth,  foot_thickness);
 217
 218         draw_flag((stemthickness/2,- (flag_count-1)* flagspace), flare,
 219                 (hip_width, foot_depth),
 220                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 221
 222         add_flag(flagspace, flare,
 223                 .97, 1.00, 1.3, hip_thickness, foot_thickness);
 224
 225         add_flag(flagspace, flare,
 226                 1.00, 1.00, 1.25, hip_thickness, foot_thickness);
 227         add_flag(flagspace, flare,
 228                 .95, 1.05, 1.25, hip_thickness, foot_thickness);
 229         pickup pencircle scaled stemthickness;
 230         draw (0, 0) .. (0,-2 staff_space);
 231 fet_endchar;
 232
 233 fet_beginchar("8th (down)", "d3", "deighthflag")
 234         save flare,
 235                 hip_depth_ratio, hip_width,
 236                 foot_depth, foot_width_ratio;
 237         save flagspace, total_depth, flag_count;
 238
 239         flag_count = 1;
 240         flare# = .99 staff_space#;
 241         flagspace# = .9 staff_space#;
 242         hip_depth_ratio = .72 ;
 243         hip_width# = downflag_width# - hip_thickness#/2;
 244         total_depth# = 2.85 staff_space#;
 245         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 246
 247         foot_width_ratio = .8;
 248
 249         set_char_box(stemthickness# /2, hip_width#
 250                 + stemthickness#/2 + right_downflag_space#,
 251                 total_depth# + foot_thickness#/2, stemthickness#/2)
 252
 253         define_pixels(flare, hip_width, hip_thickness,
 254                 flagspace,
 255                 foot_depth,  foot_thickness);
 256
 257         draw_flag((stemthickness/2,- (flag_count-1) *flagspace), flare,
 258                 (hip_width, foot_depth),
 259                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 260
 261         pickup pencircle scaled stemthickness;
 262         draw (0, 0) .. (0,-2 staff_space);
 263         y_mirror_char;
 264 fet_endchar;
 265
 266 %%%%%%%%
 267 %
 268 %
 269 %
 270 % Single Stroke for Short Appogiatura
 271 %
 272 %
 273 %
 274
 275 fet_beginchar("grace dash (up)", "ugrace", "gracedash")
 276         save flare,
 277                 hip_depth_ratio, hip_width,
 278                 foot_depth;
 279
 280         flare# = 1.0 staff_space#;
 281         hip_depth_ratio = .72;
 282         hip_width# = upflag_width# - hip_thickness#/2;
 283
 284         foot_depth# =  3 staff_space#;
 285
 286         define_pixels(flare, hip_width, hip_thickness,
 287                 foot_depth, foot_thickness);
 288
 289         set_char_box(hip_width# * hip_depth_ratio,
 290           hip_width# + stemthickness#/2 + right_upflag_space#,
 291           foot_depth# * hip_depth_ratio, -flare#)
 292
 293         pickup pencircle scaled 1.5 stemthickness;
 294         draw (-b ,-d) ..
 295           (w, h);
 296 fet_endchar;
 297
 298 fet_beginchar("grace dash (down)", "dgrace", "dgracedash")
 299         save flare, hip_depth_ratio, hip_width, foot_depth;
 300         save flagspace, total_depth, flag_count;
 301
 302         flag_count = 1;
 303         flare# = .99 staff_space#;
 304         flagspace# = .9 staff_space#;
 305         hip_depth_ratio = .72 ;
 306         hip_width# = downflag_width# - hip_thickness#/2;
 307         total_depth# = 2.85 staff_space#;
 308         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 309
 310         foot_width_ratio = .8;
 311
 312         define_pixels(flare, hip_width, hip_thickness,
 313                 flagspace, foot_depth);
 314
 315         set_char_box(hip_width# * hip_depth_ratio,
 316           hip_width# + stemthickness#/2 + right_downflag_space#,
 317           foot_depth# * hip_depth_ratio, -flare#)
 318
 319         pickup pencircle scaled 1.5 stemthickness;
 320         draw (-b, -d) .. (w,h);
 321         y_mirror_char;
 322 fet_endchar;
 323
 324 fet_beginchar("16th (down)", "d4", "dsixteenthflag")
 325         save flare,
 326                 hip_depth_ratio, hip_width,
 327                 foot_depth, foot_width_ratio;
 328         save flagspace, total_depth, flag_count;
 329
 330         flag_count = 2;
 331         flare# = .8 staff_space#;
 332         flagspace# = .9 staff_space#;
 333         hip_depth_ratio = .85 ;
 334         hip_width# = downflag_width# - hip_thickness#/2;
 335         total_depth# = 3.0 staff_space#;
 336         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 337
 338         foot_width_ratio = .95;
 339
 340         set_char_box(stemthickness# /2, hip_width#
 341                 + stemthickness#/2 + right_downflag_space#,
 342                 total_depth# + foot_thickness#/2, stemthickness#/2)
 343
 344         define_pixels(flare, hip_width, hip_thickness,
 345                 flagspace,
 346                 foot_depth,  foot_thickness);
 347
 348         draw_flag((stemthickness/2,- (flag_count-1) *flagspace), flare,
 349                 (hip_width, foot_depth),
 350                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 351         add_flag(flagspace, flare,
 352                 .95, 1.00, 1.25, hip_thickness, foot_thickness);
 353
 354
 355
 356         pickup pencircle scaled stemthickness;
 357         draw (0, 0) .. (0,-2 staff_space);
 358         y_mirror_char;
 359 fet_endchar;
 360
 361 fet_beginchar("32nd (down)", "d5", "dthirtysecondflag")
 362         save flare,
 363                 hip_depth_ratio, hip_width,
 364                 foot_depth, foot_width_ratio;
 365         save flagspace, total_depth, flag_count;
 366
 367         flag_count = 3;
 368         flare# = .84 staff_space#;
 369         flagspace# = .9 staff_space#;
 370         hip_depth_ratio = .85 ;
 371         hip_width# = downflag_width# - hip_thickness#/2;
 372         total_depth# = 3.85 staff_space#;
 373         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 374
 375         foot_width_ratio = .95;
 376
 377         set_char_box(stemthickness# /2, hip_width#
 378                 + stemthickness#/2 + right_downflag_space#,
 379                 total_depth# + foot_thickness#/2, stemthickness#/2)
 380
 381         define_pixels(flare, hip_width, hip_thickness,
 382                 flagspace,
 383                 foot_depth,  foot_thickness);
 384
 385         draw_flag((stemthickness/2,- (flag_count-1) *flagspace), flare,
 386                 (hip_width, foot_depth),
 387                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 388         add_flag(flagspace, flare,
 389                 .97, 1.00, 1.25, hip_thickness, foot_thickness);
 390
 391         add_flag(flagspace, flare,
 392                 .95, 1.05, 1.25, hip_thickness, foot_thickness);
 393
 394
 395
 396         pickup pencircle scaled stemthickness;
 397         draw (0, 0) .. (0,-2 staff_space);
 398         y_mirror_char;
 399 fet_endchar;
 400 fet_beginchar("64th (down)", "d6", "dsixtyfourthflag")
 401         save flare,
 402                 hip_depth_ratio, hip_width,
 403                 foot_depth, foot_width_ratio;
 404         save flagspace, total_depth, flag_count;
 405
 406         flag_count = 4;
 407         flare# = .8 staff_space#;
 408         flagspace# = .9 staff_space#;
 409         hip_depth_ratio = .85 ;
 410         hip_width# = downflag_width# - hip_thickness#/2;
 411         total_depth# = 4.35 staff_space#;
 412         (flag_count-1) * flagspace# + foot_depth# = total_depth#;
 413
 414         foot_width_ratio = .98;
 415
 416         set_char_box(stemthickness# /2, hip_width#
 417                 + stemthickness#/2 + right_downflag_space#,
 418                 total_depth# + foot_thickness#/2, stemthickness#/2)
 419
 420         define_pixels(flare, hip_width, hip_thickness,
 421                 flagspace,
 422                 foot_depth,  foot_thickness);
 423
 424         draw_flag((stemthickness/2,- (flag_count-1) *flagspace), flare,
 425                 (hip_width, foot_depth),
 426                 hip_depth_ratio,foot_width_ratio, hip_thickness, foot_thickness);
 427         add_flag(flagspace, flare,
 428                 .97, 1.20, 1.175, hip_thickness, foot_thickness);
 429         add_flag(flagspace, flare,
 430                 .97, 1.10, 1.175, hip_thickness, foot_thickness);
 431
 432         add_flag(.98 flagspace, flare,
 433                 .91, 1.05, 1.2, hip_thickness, foot_thickness);
 434
 435
 436
 437         pickup pencircle scaled stemthickness;
 438         draw (0, 0) .. (0,-2 staff_space);
 439         y_mirror_char;
 440 fet_endchar;
 441
 442 % ustem?
 443 %
 444 %
 445 % Stem characters so we can compose metronome markings with Feta
 446 % entirely.
 447 %
 448
 449 fet_beginchar("stem (up)", "stem", "stem")
 450         set_char_box(stemthickness#/2, stemthickness#/2, 0, 3.5staff_space#);
 451         pickup pencircle scaled stemthickness;
 452         draw (0, 0.2staff_space) .. (0, 3.5staff_space);
 453 fet_endchar;
 454
 455 % do we want this?
 456 fet_beginchar("stem (down)", "dstem", "dstem")
 457         set_char_box(stemthickness#/2, stemthickness#/2, 3.5staff_space#, 0);
 458         pickup pencircle scaled stemthickness;
 459         draw (0, -0.2staff_space) .. (0, -3.5staff_space);
 460 fet_endchar;
 461
 462
 463 fet_endgroup("flags");