mf/feta-solfa.mf

   1 % solfa.mf - implements solfa shaped notes
   2 %
   3 % (c) 2001--2004 Glen Prideaux <glenprideaux@iname.com>
   4
   5 % We can use the regular distorted-elliptical head in the feta font
   6 % for the sol head, but we can't use the triangle or diamond heads for
   7 % the do or me because they're too narrow and their lines too thin.
   8
   9 fet_begingroup("solfa");
  10
  11 noteheight#:=staff_space#+ (overdone_heads) *stafflinethickness#;
  12 define_pixels(noteheight);
  13
  14 %%%%%%%%
  15 %
  16 %
  17 % SOLFA SHAPED NOTES
  18 %
  19 %
  20 save pent;
  21 pent# = stafflinethickness#;
  22 define_pixels(pent);
  23
  24 def generic_drawnoteshape =
  25   save a,beta,black,white;
  26   path black, white;
  27
  28   pickup pencircle scaled pent;
  29   2 beta# = noteheight#;
  30   a# = a_b*beta#;
  31   wid# := 2a#+pent#;
  32   hei# := noteheight#+pent#;
  33   set_char_box(0, wid#,0.5 hei#, 0.5 hei#);
  34
  35   define_pixels(a,beta);
  36
  37   black = noteshape xscaled a yscaled beta shifted (a+pent/2,0);
  38   filldraw black;
  39
  40   if (solid=false):
  41     white = noteishape xscaled (a*ai_a) yscaled (beta*bi_b)
  42                        shifted ((dx+1)*(a+pent/2),dy*(beta+pent/2));
  43     unfill white;
  44   fi;
  45 enddef;
  46
  47 def drawnoteshape =
  48   save solid; boolean solid;
  49   solid=false;
  50   generic_drawnoteshape;
  51 enddef;
  52 def drawquarternoteshape =
  53   save solid; boolean solid;
  54   solid=true;
  55   generic_drawnoteshape;
  56 enddef;
  57
  58 % do - equilateral triangle: (0,-h/2) -- (w/2,h/2) -- (w,-h/2) -- cycle;
  59 % stem attachment: -h/2
  60
  61 save triangle; path triangle;
  62 triangle := (-1,-1) -- (0,1) -- (1,-1) -- cycle;
  63
  64 def drawdoshape =
  65   save noteshape, noteishape, dx, dy, ai_a, bi_b;
  66   path noteshape, noteishape;
  67   noteshape = noteishape = triangle;
  68   (dx,dy)=(0,0.05);
  69   (ai_a,bi_b)=(i_o,i_o);
  70   drawnoteshape;
  71 enddef;
  72
  73 fet_beginchar("Whole dohead", "0do", "wholedohead")
  74   pickup pencircle scaled blot_diameter;
  75   save a_b, i_o;
  76   a_b = 1.8;
  77   i_o = 0.6;
  78
  79   drawdoshape;
  80 fet_endchar;
  81
  82 fet_beginchar("Half dohead", "1do", "halfdohead")
  83   save a_b, i_o;
  84   a_b = 1.5;
  85   i_o = 0.6;
  86
  87   drawdoshape;
  88 fet_endchar;
  89
  90 fet_beginchar("Quart dohead", "2do", "dohead")
  91   save a_b, noteshape;
  92   path noteshape;
  93   a_b = 1.54;
  94
  95   noteshape = triangle;
  96   drawquarternoteshape;
  97
  98 fet_endchar;
  99
 100 % re - flat top, curved bottom:
 101 %                (0,h/2) {dir -90} .. (w/2,-h/2) .. {dir 90} (w,h/2) -- cycle;
 102 % (broader along the base and with more vertical sides for half and
 103 % whole notes)
 104 % stem attachment: h/2
 105
 106 save reshape; path reshape;
 107 reshape = (-1,1)--(-1,0.2){down} ... (0,-1) ... {up}(1,0.2)--(1,1)--cycle;
 108
 109 fet_beginchar("Whole rehead", "0re", "wholerehead")
 110   save a_b, ai_a, bi_b, dx, dy, noteshape, noteishape;
 111   path noteshape, noteishape;
 112   noteshape = reshape;
 113   noteishape = reshape;
 114   a_b = 1.8;
 115   bi_b = 0.65;
 116   ai_a = 0.8;
 117   (dx,dy)=(0,-0.1);
 118   drawnoteshape;
 119 fet_endchar;
 120
 121 fet_beginchar("Half rehead", "1re", "halfrehead")
 122   save a_b, ai_a, bi_b, dx, dy, noteshape, noteishape;
 123   path noteshape, noteishape;
 124   noteshape = reshape;
 125   noteishape = reshape;
 126   a_b = 1.5;
 127   bi_b = 0.65;
 128   ai_a = 0.8;
 129   (dx,dy)=(0,-0.1);
 130   drawnoteshape;
 131 fet_endchar;
 132
 133 fet_beginchar("Quart rehead", "2ro", "rehead")
 134   save a_b, noteshape;
 135   path noteshape;
 136   a_b = 1.54;
 137
 138   noteshape = reshape;
 139   drawquarternoteshape;
 140 fet_endchar;
 141
 142 % me - diamond: (0,0) -- (w/2,h/2) -- (w,0) -- (w/2,-h/2) -- cycle;
 143 % similar to existing diamond shaped head, but not quite the same
 144 % stem attachment: 0
 145
 146 save meshape; path meshape;
 147 meshape = (-1,0)--(0,1)--(1,0)--(0,-1)--cycle;
 148
 149 fet_beginchar("Whole mehead", "0me", "wholemehead")
 150   save a_b, ai_a, bi_b, dx, dy, noteshape, noteishape;
 151   path noteshape, noteishape;
 152   noteshape = meshape;
 153   noteishape = (meshape slanted -0.35) rotated -10.5;
 154   a_b = 1.8;
 155   bi_b = 0.65;
 156   ai_a = 0.7;
 157   (dx,dy)=(0,0);
 158   drawnoteshape;
 159 fet_endchar;
 160
 161 fet_beginchar("Half mehead", "1me", "halfmehead")
 162   save a_b, ai_a, bi_b, dx, dy, noteshape, noteishape;
 163   path noteshape, noteishape;
 164   noteshape = meshape;
 165   noteishape =  (meshape slanted -0.35) rotated -10.5;
 166   a_b = 1.5;
 167   bi_b = 0.65;
 168   ai_a = 0.7;
 169   (dx,dy)=(0,0);
 170   drawnoteshape;
 171 fet_endchar;
 172
 173 fet_beginchar("Quart mehead", "2me", "mehead")
 174   save a_b, noteshape;
 175   path noteshape;
 176   a_b = 1.54;
 177
 178   noteshape = meshape;
 179   drawquarternoteshape;
 180 fet_endchar;
 181
 182
 183 % fa - scalene triangle:
 184 %         for stem up: (0,h/2) -- (w,h/2) -- (w,-h/2) -- cycle;
 185 %       for stem down: (w,-h/2) -- (0,1h/2) -- (0,h/2) -- cycle;
 186 %       (one is a 180 degree rotation of the other)
 187 % stem attachment: (doesn't much matter)
 188
 189 save fashape; path fashape;
 190 fashape = (-1,1)--(1,1)--(1,-1)--cycle;
 191
 192 fet_beginchar("Whole fahead", "0fa", "wholefahead")
 193   save a_b, ai_a, bi_b, dx, dy, noteshape, noteishape;
 194   path noteshape, noteishape;
 195   noteshape = fashape;
 196   noteishape = fashape;
 197   a_b = 1.8;
 198   bi_b = 0.6;
 199   ai_a = 0.6;
 200   (dx,dy)=(0.2,.05);
 201   drawnoteshape;
 202 fet_endchar;
 203
 204 fet_beginchar("Half stemup fahead", "1fau", "halffauhead")
 205   save a_b, ai_a, bi_b, dx, dy, noteshape, noteishape;
 206   path noteshape, noteishape;
 207   noteshape = fashape;
 208   noteishape =  fashape;
 209   a_b = 1.5;
 210   bi_b = 0.6;
 211   ai_a = 0.6;
 212   (dx,dy)=(0.2,.05);
 213   drawnoteshape;
 214 fet_endchar;
 215
 216 fet_beginchar("Quart stemup fahead", "2fau", "fauhead")
 217   save a_b, noteshape;
 218   path noteshape;
 219   a_b = 1.54;
 220
 221   noteshape = fashape;
 222   drawquarternoteshape;
 223 fet_endchar;
 224
 225 fet_beginchar("Half stemdn fahead", "1fad", "halffadhead")
 226   save a_b, ai_a, bi_b, dx, dy, noteshape, noteishape;
 227   path noteshape, noteishape;
 228   noteshape = fashape rotated 180;
 229   noteishape =  fashape rotated 180;
 230   a_b = 1.5;
 231   bi_b = 0.6;
 232   ai_a = 0.6;
 233   (dx,dy)=(-0.2,-.05);
 234   drawnoteshape;
 235 fet_endchar;
 236
 237 fet_beginchar("Quart stemdn fahead", "2fad", "fadhead")
 238   save a_b, noteshape;
 239   path noteshape;
 240   a_b = 1.54;
 241
 242   noteshape = fashape rotated 180;
 243   drawquarternoteshape;
 244 fet_endchar;
 245
 246
 247 % sol - oval ... the standard "round" note
 248
 249 % la - rectangle: (0,h/2)--(w,h.2)--(w,-h/2)--(0,-h/2)--cycle;
 250 % stem attachment: (doesn't much matter)
 251 save lashape; path lashape;
 252 lashape = (-1,-1)--(-1,1)--(1,1)--(1,-1)--cycle;
 253
 254 fet_beginchar("Whole lahead", "0la", "wholelahead")
 255   save a_b, ai_a, bi_b, dx, dy, noteshape, noteishape;
 256   path noteshape, noteishape;
 257   noteshape = lashape;
 258   noteishape = lashape;
 259   a_b = 1.8;
 260   bi_b = 0.6;
 261   ai_a = 0.85;
 262   (dx,dy)=(0,0);
 263   drawnoteshape;
 264 fet_endchar;
 265
 266 fet_beginchar("Half lahead", "1la", "halflahead")
 267   save a_b, ai_a, bi_b, dx, dy, noteshape, noteishape;
 268   path noteshape, noteishape;
 269   noteshape = lashape;
 270   noteishape =  lashape;
 271   a_b = 1.5;
 272   bi_b = 0.6;
 273   ai_a = 0.85;
 274   (dx,dy)=(0,0);
 275   drawnoteshape;
 276 fet_endchar;
 277
 278 fet_beginchar("Quart lahead", "2la", "lahead")
 279   save a_b, noteshape;
 280   path noteshape;
 281   a_b = 1.54;
 282
 283   noteshape = lashape;
 284   drawquarternoteshape;
 285 fet_endchar;
 286
 287
 288 % te - an "icecream cone" with about 2/3 of
 289 % the height in the cone and only 1/3 in the curved top:
 290 %      (0,h/6)--(w/2,-h/2)--(w,h/6)..(w/2,h/2)..cycle;
 291 % stem attachment: h/6
 292 save teshape; path teshape;
 293 teshape = (0,-1)--(-1,0.3)..(0,1)..(1,0.3)--cycle;
 294
 295 fet_beginchar("Whole tehead", "0te", "wholetehead")
 296   save a_b, ai_a, bi_b, dx, dy, noteshape, noteishape;
 297   path noteshape, noteishape;
 298   noteshape = teshape;
 299   noteishape = teshape;
 300   a_b = 1.8;
 301   bi_b = 0.75;
 302   ai_a = 0.75;
 303   (dx,dy)=(0,-.02);
 304   drawnoteshape;
 305 fet_endchar;
 306
 307 fet_beginchar("Half tehead", "1te", "halftehead")
 308   save a_b, ai_a, bi_b, dx, dy, noteshape, noteishape;
 309   path noteshape, noteishape;
 310   noteshape = teshape;
 311   noteishape =  teshape;
 312   a_b = 1.5;
 313   bi_b = 0.75;
 314   ai_a = 0.75;
 315   (dx,dy)=(0,-.02);
 316   drawnoteshape;
 317 fet_endchar;
 318
 319 fet_beginchar("Quart tehead", "2te", "tehead")
 320   save a_b, noteshape;
 321   path noteshape;
 322   a_b = 1.54;
 323
 324   noteshape = teshape;
 325   drawquarternoteshape;
 326 fet_endchar;
 327
 328 fet_endgroup("solfa")