summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/fonts/source/public/yannisgr/rgrlower.mf
blob: 331fee9f6c273f7a351dd4a15e14ffa06887dc18 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
% These are the lowercase letters of the rgr-package version 1.1
% prepared on Jan 16, 1990; Lille
%
% ALFA
 
def width =   9u enddef; 
def height = x_height enddef;
def dims = width#,height#,0 enddef;
def ital = 0 enddef;
def fit_params = 0,.5u# enddef;
 
def gen_letter =
  pickup fine.nib;
  pos1(stem,0); top y1=x_height+oo; rt x1r=hround(w-.5u);       %top right
  pos2(vstem,-90); pos4(vstem,-270); x4=x2=.5w-u;
  bot y2r=-oo; top y4r=x_height+oo;                     %bottom and top bulges
  pos3(hair,-180); lft x3r=hround .75u; y3=.5[y2,y4];   %left bulge
  pos6(vstem,90); x6=w-u; y6=y2;                        %bottom right
 % numeric theta; theta=angle((x4-x6),2.5(y4-y6))-90;
  pos5(hair,0); x5=.65[x4,x6]; y5=y3;               %point of inflection
  alpha_tail(6,7);                                      %hook
  filldraw stroke z1e{(x2-x1,2(y2-y1))}...              %diagonal
   pulled_arc.e(2,3) & pulled_arc.e(3,4)                %bowl
   ...z5e{down}...z6e{right}...{up}z7e;                 %diagonal and 
  numeric x_baryctr; x_baryctr=  .25[x4,x1];   
  numeric pos_stem; pos_stem=x_baryctr;                 %iota reference
enddef;
 
cmchar "Lowercase alpha";
beginchar("a",dims);
this_letter; penlabels(1,2,3,4,5,6,7); endchar;
 
cmchar "Lowercase alpha with rough breathing";
beginchar(oct"001",width#,acc_ht#,0);
this_letter; spirit(x_baryctr)<; endchar;
 
cmchar "Lowercase alpha with smooth breathing";
beginchar(oct"002",width#,acc_ht#,0);
this_letter; spirit(x_baryctr)>; endchar;
 
cmchar "Lowercase alpha with acute";
beginchar(oct"003",width#,acc_ht#,0);
this_letter; acute(x_baryctr); endchar;
 
cmchar "Lowercase alpha with rough breathing and acute";
beginchar(oct"004",width#,acc_ht#,0);
this_letter; spirit_acute(x_baryctr)<; endchar;
 
cmchar "Lowercase alpha with smooth breathing and acute";
beginchar(oct"005",width#,acc_ht#,0);
this_letter; spirit_acute(x_baryctr)>; endchar;
 
cmchar "Lowercase alpha with circumflex";
beginchar(oct"006",width#,circ_ht#,0);
this_letter; circumflex(x_baryctr); endchar;
 
picture pic.iota;
picture savedpicture;
 
% BHTA
 
def dims = 9u#,asc_height#,desc_depth# enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter=
  pickup fine.nib; 
  numeric thin_stem; thin_stem=.6[hair,stem];           % for upper bowl
  numeric tilt; tilt=min(2*otilt,.5);                   % for both bowls
  pos1(stem,180); y1-.5stem=-d-o;               % bottom left
  pos2(hair,180); y2=.5bar_height;              % self-intersection (cf. z15)
  x1=x2; lft x1r=hround(.75u+.5(hair-stem));    % i.e., lft x2r ~ .75u
  x3r=x2r;                                      % beginning of curve
  top y5r=h+oo; bot y14r=-oo; x5r=x14r;         % top and bottom bulges
  top y10r=vstem+bot y9r=x_height; x9r=x10r;    % top and bottom of cusp
  rt x12r=hround(w-.75u);                       % lower right bulge
  x5r=.5[lft x2r,rt x12r]; x9r-.5vstem=hround(x5r-.5u-.5vstem);
  %  we want to simulate the following relations, to make slopes consistent
  %  (where |z7| is the upper right bulge):
  % | z5r-z3r=whatever*(z9r-z7r)=whatever*(z14r-z12r);|
  % | z7r-z5r=whatever*(z12r-z10r)=whatever*(z5r-z3r) yscaled -1;|
  numeric slope;
  slope=((y10r-y12r)+(y12r-y14r))/((x12r-x10r)+(x12r-x14r));
  z7'r=z9r+whatever*(1,slope); z7'r=z5r+whatever*(1,-slope);
  y7r=y7'r; rt x7r=hround rt x7'r;
  z12r=z14r+whatever*(1,slope);
z3r=z5r+whatever*(1,slope);
  filldraw double_circ_stroke gr_arc.e(7,6,5)(hair,thin_stem,tilt)..
    gr_arc.e(5,4,3)(hair,thin_stem,tilt)..{down}z2e..z1e;       % top and left
  z2=z15; pos15(hair,slope-90);         % intersection pt
  numeric slope;
  slope=angle((z14r-z15)yscaled 2);
  filldraw stroke z15e{dir slope}...gr_arc.e(14,13,12)(hair,stem,tilt); % bot
  forsuffixes e=r,l:
    path curv[]e; numeric S[]e;
    curv1e=reverse gr_arc.e(9,8,7)(hair,thin_stem,tilt);        % cusp bottom
    curv2e=gr_arc.e(12,11,10)(hair,stem,tilt); endfor           % cusp top
  (S1r,S2r)=curv1r intersectiontimes curv2r;
  (whatever,S2l)=curv1r intersectiontimes curv2l;
  (S1l,whatever)=curv1l intersectiontimes curv2r;
  if S1l=-1 : S1l:=2; fi
  if S2l=-1 : S2l:=2; fi
  filldraw stroke subpath(0,S1e+eps) of curv1e;                 % fill in cusp
  filldraw stroke subpath(0,S2e+eps) of curv2e;
  filldraw subpath (S1r+eps,2) of curv1r...subpath(2,S2r+eps) of curv2r..cycle;
enddef;
 
cmchar "Lowercase beta";
beginchar("b",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15); endchar;
 
picture savedpicture;
 
% GAMMA
 
def dims = 10u#,x_height#,desc_depth# enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter=
  pickup fine.nib;
  begingroup
    save t; t:=superness; interim superness:=.95t;
    pos2(curve,90); top y2r=h+oo;                       % top of left branch
    pos1(hair,180); bot y1=top y2r-4/3curve;            % tip of hook
    lft x1r=hround .5u; x2-x1=y2-y1;                    % central arc is round
    pos3(hair,0); pos4(hair,-180); rt x3r-lft x4r=stem; % bottom of cusp
    y4=y3; .5[x3,x4]=.5w; bot y3=-d-oo;
    pos5(curve,-270); top y5r=h+oo; x5+.5curve=hround(w-.75u); % right branch
    pos5'(curve,0); z5'=z5;
    filldraw stroke z1e{up}...z2e{right}; drawloop(2,3,4,5);    
    filldraw z5l{right}...z5'r{up}...z5r{left}--cycle;  % right branch
    if monowidth:                                       % complete stem
      x3'=x3r; x4'=x4r; y3'=y4'; y3'-.5stem=vround(-.8d);
      filldraw z3r--z3'{down}...{up}z4'--z4r--cycle; fi
  endgroup; 
enddef;
 
cmchar "Lowercase gamma";
beginchar("g",dims);
this_letter; penlabels(1,2,3,3',4,4',5); endchar;
 
picture savedpicture;
 
% DELTA
 
 
def dims = 8.5u#,asc_height#,0 enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter =
  pickup fine.nib;
  top y1r=vround(if not monowidth:.95 fi x_height+oo); x1r=.5w; % top of loop
  x5r=.5w; bot y5r=-oo;                                 % bottom of ditto
  lft x3r=w-rt x7r=hround(.75u); y3r=y7r=.5[y1r,y5r];   % left and right bulge
  filldraw stroke gr_arc.e(1,2,3)(vair,stem,.5otilt)    % three quadrants of l
    & gr_arc.e(3,4,5)(vair,stem,.5otilt) & gr_arc.e(5,6,7)(vair,stem,.5otilt);
 
  % we now draw the hook |z8..z9..z10|.  It must satisfy the following ints:
  % its outer contour is symmetric with respect to some axis containing |z9l|;
  % one end is known, the width there is |thin_stem|, and the width at |z10|
  % is, ideally, stem.  (But since we may have to change that we callt |Stem|.)
  z8l=z1l; numeric thin_stem, med_stem; thin_stem=.5[hair,Stem];
  % the aperture, measured perpendicular to the axis, equals |Stem|
  numeric apert; apert=2Stem+thin_stem-currentbreadth;  % |apeth(z10l-z8l);|
  numeric left_goal; lft left_goal=vround(lft x3r+.5u); % most tangent known
  numeric top_goal; top top_goal=h+oo;                  % highest tangent known
 
  % if by taking |Stem=stem| we got |apert > top_goal-y1l|, the problem might
  % not have a solution with a horizontal tangent; in that case the
  % constraint is on |apert|:
  if 2stem+.7[hair,stem]-currentbreadth>top_goal-y8l: apert=top_goal-y8l;
  else: Stem=stem; fi
 
  % we first estimate the slope of the axis by imagining that, in the vicinity
  % of |z9l|, the hook looks like a semicircle of diameter |apert/2|.
  % (this value is empiric, but reasonable because the tension is high)
  z0l=(left_goal+.25apert,top_goal-.25apert);           % center of semicircle
  numeric axis; axis=angle(z0l-z8l)+angle(length(z0l-z8l)+-+.5apert,.5apert);
  z9l=z0l+(.25apert,0)rotated(axis); z10l=z8l+(0,-apert)rotated(axis);
 
  % we now iterate, correcting |z9l| until the tangencies are satisfied
  path hook; numeric left_real; numeric top_real;
  forever:
 
    hook:=z8l{dir(axis)}..tension 1.5..z9l..tension 1.5..{-dir(axis)}z10l;
    if directiontime up of hook=-1:
      left_error:=0; message "hook has no vertical tangent!";
    else: left_error:=xpart directionpoint up of hook-left_goal; fi
    if directiontime right of hook=-1:
      top_error:=0; message "hook has no horizontal tangent!";
    else: top_error:=ypart directionpoint right of hook-top_goal; fi
 
    exitif (abs(left_error)<.05) and (abs(top_error)<.05);
    x9l:=x9l-left_error; y9l:=y9l-top_error;
    axis:=angle(z9l-z8l)+angle(length(z9l-z8l)+-+.5apert,.5apert);
    x10l:=x8l+apert*sind axis; y10l:=y8l-apert*cosd axis;
  endfor
 
  pos8(thin_stem,axis-90); pos10(Stem,axis+90); pos9(.3[hair,Stem],axis+180);
  filldraw stroke
    z7e{z7'e}..{dir axis}z8e..tension 1.5..z9e..tension 1.5..{-dir axis}z10e;
enddef;
 
cmchar "Lowercase delta";
beginchar("d",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8,9,10); endchar;
 
picture savedpicture;
 
% EYILON
 
def width = 7.25u enddef;
def height = x_height enddef;
def dims = width#,height#,0 enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter =
  pickup fine.nib;
  pos2(.8vstem,90); x2=.5w; top y2r=x_height+o;           %   top point
  pos7(vstem,630); x2=x7; bot y7r=-o;                   %   bottom point
  rt x1r=hround(w-u); bot y1l=.3[bot y2l,bar_height];        %   top end
  z1'=(x1r,y1l+.5(flare-currentbreadth));               %   approximation to z1
  numeric slope; slope=angle((z2-z1')yscaled 2); pos1(.5flare,slope-30);
  bar_height=.5[y1,y8]; x8=x1; pos8(flare,slope+90);    %   bottom end
  pos3(vstem,120); lft x3r=hround .75u; y3=.5[y4r,y2r]; %   top left bulge
  pos6(vstem,600); x6=x3; y6=.5[y5r,y7r];               %   bottom left bulge
  y6:=y6r;y3:=y3r;                      %   for the benefit of |pulled_arc|
  top y5r-bot y4r=curve; y5+y4=2bar_height; x5=x4=x2;   %   loop
  pos4(vair,-90); pos5(vair,90);
  filldraw stroke z1e{dir slope}...pulled_arc.e(2,3);   %   top
  drawloop(3,4,5,6);                                    %   loop and bottom
  forsuffixes e=l,r:
    path foo.e; foo.e= z8e...pulled_arc.e(7,6);
    if angle(direction 0 of foo.e) > angle(z8r-z8l):
    foo.e:= z8e{z8r-z8l}...pulled_arc.e(7,6); fi
  endfor;
  filldraw stroke foo.e; 
  numeric x_baryctr; x_baryctr=x2;                    %   accent reference
enddef;
 
cmchar "Lowercase epsilon";
beginchar("e",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8); endchar;
 
cmchar "Lowercase epsilon with rough breathing";
beginchar(oct"037",width#,acc_ht#,0);
this_letter; spirit(x_baryctr)<; endchar;
 
cmchar "Lowercase epsilon with smooth breathing";
beginchar(oct"040",width#,acc_ht#,0);
this_letter; spirit(x_baryctr)>; endchar;
 
cmchar "Lowercase epsilon with acute";
beginchar(oct"044",width#,acc_ht#,0);
this_letter; acute(x_baryctr); endchar;
 
cmchar "Lowercase epsilon with rough breathing and acute";
beginchar(oct"177",width#,acc_ht#,0);
this_letter; spirit_acute(x_baryctr)<; endchar;
 
cmchar "Lowercase epsilon with smooth breathing and acute";
beginchar(oct"046",width#,acc_ht#,0);
this_letter; spirit_acute(x_baryctr)>; endchar;
 
picture savedpicture;
 
% ZHTA
 
def dims = 8.5u#,asc_height#,desc_depth# enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter=
  pickup fine.nib;
  pos4(hair,-180); y4=bar_height; lft x4r=hround(.75u);         % left bulge
  pos6(hair,-180); rt x6l=hround(w-.75u); y6=-.5stem;           % bottom right
  y3+.5stem=h+o; x3+.5stem=hround(rt x6l-.25u);                 % top right
  numeric slope; slope=angle((z3-z4)xscaled 2); pos3(hair,slope+90);
  pos5(stem,-90); bot y5r=0; x5=.5w;                            % inflection pt
  pos7(vstem,-270); y6=.5[y7r,y5r]; x7-.5vstem=hround x5;
  pos2(stem,slope+90); z2l=z3l; filldraw double_circ_stroke
                                   % bowl and tail
    z7e{right}...z6e{up}...z5e{left}...z4e{up}...z2e{dir slope};
                            % where handle attaches
  pos1(curve,0); lft x1l=hround(lft x4r+.25u); y1+.5curve=h+o;  % end of handle
  filldraw circ_stroke z1e{down}...z3e{dir slope}; 
enddef;
 
cmchar "Lowercase zeta";
beginchar("z",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8); endchar;
 
picture savedpicture; 
 
% HTA
 
def width = 8.5u enddef;
def dims = width#,x_height#,desc_depth# enddef;
def ital = 0 enddef;
def fit_params = if straight: .75 else: .5 fi u#,0 enddef;
 
def gen_letter =
 pickup fine.nib;
  y1r-.5stem=-d-o; pos1(stem,0);
  rt x2r=hround(w-.75u); y2r=.5x_height; pos2(hair,0);
  lft x5r=hround(1.5u); y5-.5stem=-o; pos5(stem,-180);
  top y4r=x_height+o; x4r=.5[lft x2l,rt x5l];
  pos6(hair,180); y6=y2;
  if straight:
  x1=x2;x5=x6; pos4(stem,90);
  filldraw double_circ_stroke z1e--pulled_arc.e(2,4)&pulled_arc.e(4,6)--z5e;
 else:
  x1r=x2r; z2'l=z2'r=up;
  filldraw circ_stroke z1e{up}...gr_arc.e(2,3,4)(hair,stem,.8); % right leg
  filldraw circ_stroke z5e{(z4-z5) yscaled 4}...z4e{-z4'e};     % left leg
  z6r=((0,y2)--(w,y2)) intersectionpoint (z5r{(z4-z5) yscaled 4}...z4r{-z4'r});
 fi
 pos8(vstem,0); rt x8r=hround(lft x6r-.75u);            % end of handle
 pos7(vstem,-90); top y7l=x_height+o; z8r=z7r;          % top of handle
 filldraw circ_stroke z8e{up}...z7e{right}...z6e{down};
 numeric x_baryctr; x_baryctr=.1[x4,x7];           % accent reference
 numeric pos_stem; pos_stem=x5;                         % iota reference
enddef;
 
cmchar "Lowercase eta";
beginchar("h",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8); endchar;
 
cmchar "Lowercase eta with rough breathing";
beginchar(oct"007",width#,acc_ht#,desc_depth#);
this_letter; spirit(x_baryctr)<; endchar;
 
cmchar "Lowercase eta with smooth breathing";
beginchar(oct"010",width#,acc_ht#,desc_depth#);
this_letter; spirit(x_baryctr)>; endchar;
 
cmchar "Lowercase eta with acute";
beginchar(oct"011",width#,acc_ht#,desc_depth#);
this_letter; acute(x_baryctr); endchar;
 
cmchar "Lowercase eta with rough breathing and acute";
beginchar(oct"012",width#,acc_ht#,desc_depth#);
this_letter; spirit_acute(x_baryctr)<; endchar;
 
cmchar "Lowercase eta with smooth breathing and acute";
beginchar(oct"013",width#,acc_ht#,desc_depth#);
this_letter; spirit_acute(x_baryctr)>; endchar;
 
cmchar "Lowercase eta with circumflex";
beginchar(oct"014",width#,circ_ht#,desc_depth#);
this_letter; circumflex(x_baryctr); endchar;
 
picture pic.iota;
picture savedpicture;
 
% JHTA
 
def dims = 9u#,asc_height#,0 enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter=
  pickup fine.nib;
  lft x4r=w-rt x8r=hround .75u; y4r=y8r=.5h;            % left and right bulges
  x2r=x6r=.5w; top y2r=h+o; bot y6r=-o;                 % top and bottom
  filldraw stroke
    gr_arc.e(8,1,2)(vair,stem,otilt) & gr_arc.e(2,3,4)(vair,stem,otilt) &
    gr_arc.e(4,5,6)(vair,stem,otilt) & gr_arc.e(6,7,8)(vair,stem,otilt);
  pos4`(bar,90); pos8`(bar,90); x4`=x4; x8`=x8; y4`=y8`=.05[y4,y2];
  filldraw stroke z4`e--z8`e;                           % bar
enddef;
 
cmchar "Lowercase theta";
beginchar("j",dims);
this_letter; penlabels(1,2,3,4,4`,5,6,7,8,8`); endchar;
 
picture savedpicture;
 
% IWTA
 
def width = 5u enddef;
def dims = width#,x_height#,0 enddef;
def ital = 0 enddef;
def fit_params = if monospace: u#,u# else:0,2curve#-3u# fi enddef;
 
def gen_letter=
  pickup fine.nib;
  pos1(flare,180); lft x1r=hround u; top y1=x_height+oo;        % top
  numeric neck; neck=.2[hair,stem];
  pos2(neck,180); .2[lft x2r,rt x2l]=.2[lft x1r,rt x1l];        % neck
  pos3(curve,-90); bot y3r=-oo;                                 % bottom
  y2r=if monowidth:
 2 else: 1.5 fi[bot y3r,top y3l]; z3r-z2r=whatever*(1,-1.25);
  if monowidth:
    y4r+.5neck=vround y2r; x3=.5[x2,x4]; pos4(neck,0);          % tip of hook
    filldraw stroke z4e...z3e...z2e---z1e;
  else:
    z4l=z4r; top y4r=y2r; z4l-z3l=whatever*(1,1);
    path p.r, p.l; forsuffixes e=r,l: p.e=z1e---z2e...z3e...z4e; endfor
    rt x3.5r=hround(rt xpart directionpoint up of p.r);
    z4'r=direction 3 of p.r; z3'r=direction 2 of p.r;
    forever:                    % avoid bad vertical tangent between 2l and 3l
      x2.5l:= rt xpart directionpoint down of p.l;
      exitif abs(hround(x2.5l)-x2.5l)<.05;
      x2l:=x2l+hround(x2.5l)-x2.5l; p.l:=(z1l---z2l...z3l...z4l);
    endfor
    p.r:=z1r---z2r...club.r(3,3.5,4);
                                % avoid bad vertical tangent between 3r and 4r
    filldraw stroke p.e;
  fi 
  numeric x_baryctr; x_baryctr=x1;
enddef;
 
cmchar "Lowercase iota";
beginchar("i",dims);
this_letter; penlabels(1,2,3,4); endchar;
 
cmchar "Lowercase iota with rough breathing";
beginchar(oct"023",width#,acc_ht#,0);
this_letter; spirit(x_baryctr if serifs: +.25u fi)<; endchar;
 
cmchar "Lowercase iota with smooth breathing";
beginchar(oct"024",width#,acc_ht#,0);
this_letter; spirit(x_baryctr if serifs: -.25u fi)>; endchar;
 
cmchar "Lowercase iota with acute";
beginchar(oct"025",width#,acc_ht#,0);
this_letter; acute(x_baryctr); endchar;
 
cmchar "Lowercase iota with rough breathing and acute";
beginchar(oct"026",width#,acc_ht#,0);
this_letter; spirit_acute(x_baryctr)<; endchar;
 
cmchar "Lowercase iota with smooth breathing and acute";
beginchar(oct"027",width#,acc_ht#,0);
this_letter; spirit_acute(x_baryctr)>; endchar;
 
cmchar "Lowercase iota with circumflex";
beginchar(oct"030",width#,circ_ht#,0);
this_letter; circumflex(x_baryctr); endchar;
 
picture savedpicture;
 
% KAPPA
 
def dims = 9.5u#,x_height#,0 enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter=
 pickup fine.nib;
 x1-.5stem=hround .75u; y1-.5stem=-o;                   % lower left
 z1+z3=(w,h); z2=.5[z1,z3];                             % upper right and mid
 z1'=(z3-z1) if monowidth: xscaled 1/2 fi;              % slope at 1 and 3
 pos1(stem,angle z1'+90); pos2(.6[hair,stem],angle z1'+90);
 pos3(stem,angle z1'+90);
 filldraw double_circ_stroke z1e{z1'}..z2e..{z1'}z3e;   % diagonal stroke
 z4=if monowidth: z1 else: 1/3[z1,z3] fi; z4-z1=z3-z7;  % handle attachments
 z4'=if monowidth: z1' else: (z3-z1) xscaled .25 fi;    % slope at 4 and 7
 pos4(hair,angle z4'-90); pos7(hair,angle z4'+90);
 pos5(vstem,90); top y5r=h+o; pos6(vstem,180); z6l=z5l;
 lft x6r=hround(x1-.5stem-.25u);
 filldraw circ_stroke z6e{up}...z5e{right}...z4e{-z4'};         % left handle
 pos8(.5[vstem,stem],-90); bot y8r=-o; rt x9r=hround(x3+.5stem+.25u);
 pos9(.5[vstem,stem],0); z9l=z8l;
 filldraw circ_stroke z9e{down}...z8e{left}...z7e{z4'}; % right handle
enddef;
 
cmchar "Lowercase kappa";
beginchar("k",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8,9,10); endchar;
 
picture savedpicture;
 
% LAMBDA
 
def dims =  9.5u#,asc_height#,0 enddef;
def ital = 0 enddef;
def fit_params = -.25u#,-.25u# enddef;
def krn = -.75u# enddef;
 
def gen_letter=
  pickup fine.nib;
  x1-.5stem=hround .75u; y1+.5stem=h;                   % top left
  z1'=(1,.2); pos1(stem,angle z1'+90);                  % direction at z1
  x3+x1=w; y3-.5stem=-oo; pos3(stem,-angle z1'+90);     % bottom right
  y2=x_height-.5u; x2=.5[x1,x3];                            % attachment
  z2'=(z3-z1)yscaled 2; pos2(hair,angle z2'+90);        % direction at z4
  filldraw double_circ_stroke z1e{z1'}...
    z2e{(z3-z1)yscaled 2}...{z1' yscaled -1}z3e;                % diagonal
  lft x4l=hround.75u; bot y4l=0;                                % bottom left
  numeric stem'; stem'=stem-currentbreadth; numeric slope;      % from z4 to z4
  slope=angle(z2-z4l)+angle(length(z2-z4l)+-+.5stem',.5stem');
  x4r=x4l+(stem'/sind slope); y4r=y4l; z4=.5[z4r,z4l];
  path p; p=z1{z1'}...z2{(z3-z1)yscaled 2}...{z1' yscaled -1}z3;
  forsuffixes e=r,l: z5e=(z4e--(z4e+2(z2-z4))) intersectionpoint p; endfor
  filldraw stroke z4e{(z2-z4)if not monowidth: xscaled 1.2 fi}..z5e; 
enddef;
 
cmchar "Lowercase lambda";
beginchar("l",dims);
this_letter; penlabels(1,2,3,4,5); endchar;
 
picture savedpicture;
 
% MI
 
def dims = 9.5u#,x_height#,desc_depth# enddef;
def ital = 0 enddef;
def fit_params = 0,.5stem# enddef;
 
def gen_letter=
  pickup fine.nib;
  y6+.5stem=h+o; pos6(stem,0); rt x6r=hround(w-vstem);          % top right
 x5r=.5[x1,x6]; bot y5r=-oo;                                   % bottom of bowl
  if straight:
    lft x1r=hround .75 u; y1+.5stem=h+o; pos1(stem,180);        % top left
    x4=x1; x9=x6; y9=y4=.5x_height; pos4(stem,180); pos9(stem,0);
    pos5(vstem, 270);
    filldraw double_circ_stroke z1e..pulled_arc.e(4,5)&pulled_arc.e(5,9)..z6e;
    y8-.5stem=-d-oo; x8=x1; pos8(stem,180);                     % end of handle
    filldraw circ_stroke z8e..z4e;
  else:
  lft x2r=rt x2l-stem=hround .75u;            % vertical tangents of left bulb
    top y1r=h+o; x1r=.5[x2r,x2l]; z1=z1l=z1r; z1'r=-z1'l=left;  % top left
    y3r=.4[y1r,y5r]; lft x3r=x1r-.5hair;                        % middle left
    numeric tilt; tilt:=.6; path p.r, p.l;
    p.l=gr_arc.l(3,4,5)(hair,.4[hair,stem],tilt)...{up}z6l;
    p.r=subpath (2(1-tilt),2) of gr_arc.r(3,4,5)(fie,fo,fum)...{up}z6r;
    z3.5r=z4r; z3.5'r=z4'r; z3.5l=z3l; z3.5'l=z3'l;             % a hybrid
    filldraw double_circ_stroke club.e(1,2,3.5) & p.e;          % bowl
    x8=lft x2r+.5stem; bot y8=-d-oo;                           % end of handle
    pos8(stem,angle(z4'l xscaled 2)-120); z8'r=z8'l=z4'l xscaled 2;
    assign_z3'r(z3'l);                          % so club.r won't get confused
    lft x7r=rt x7l-max(hair,2)=lft x2r;         % vertical tangents of handle
    filldraw double_circ_stroke club.e(3,7,8);  % handle
    y9r=max(y4r+epsilon,-oo+2vstem);            % where hook attaches
    z9r=((0,y9r)--(w,y9r)) intersectionpoint p.r; pos9(hair,0);
  fi
  pos10(vstem,90); y10l=y5r; x10-x9=vstem;              % bottom of hook
  pos11(hair,180); top y11=bot y10l+4/3vstem;           % tip of hook
  rt x11l=hround(x10+(y11-y10)+.5hair);                 % central arc is round
  filldraw stroke z9e{down}..z10e{right}..{up}z11e;    % hook
enddef;
 
cmchar "Lowercase mu";
beginchar("m",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8,9,10,11); endchar;
 
picture savedpicture;
 
% NI
 
def dims = 8.5u#,x_height#,0 enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter =
  pickup fine.nib;
  rt x4r=hround(w-.75u); lft x4l-rt x4r=hround -.2[hair,stem];  % vert tangents
  x5=lft x4l; y5+.5hair=h+oo; z5'l=z5'r=(u,-.2h);               % right tip
  pos5(hair,angle z5'l+90);
pos3(whatever,-90); bot y3r=-oo; x3=.5w; z3'l=z3'r=z5'l xscaled -2;   % bottom
z3l+whatever*z3'l=z3r+(stem-currentbreadth)*(dir(angle z3'l-90)); % width=stem
  filldraw circ_stroke club.e(5,4,3);                           % right stroke
  y1+.5stem=h+oo; x1-.5stem=hround.75u;                         % left tip
  z1'=(9u,-h); pos1(stem,angle z1'-90);
  z2r=z3r; z2l-z3l=(hair-currentbreadth,0);
  filldraw circ_stroke z1e{z1'}...{down}z2e;              % left stroke
enddef;
 
cmchar "Lowercase nu";
beginchar("n",dims);
this_letter; penlabels(1,2,3,4,5); endchar;
 
picture savedpicture;
 
% XI
 
def dims = 8.5u#,asc_height#,desc_depth# enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter=
  pickup fine.nib;
  lft x7r=rt x7l-hair=hround(.75u); x7=.5[x7r,x7r];             % big bulge
  pos8(stem,-90); bot y8r=0; x8=.5w; z8'r=z8'l=left;            % inflection pt
  pos9(hair,-180); rt x9l=hround(w-.75u); y9=-.5stem;           % bottom right
  y6+.5stem=x_height+o; x6+.5stem=hround(rt x9l-1.5u);          % middle right
  numeric slope; slope=angle(5(x6-x7),y6-y8); pos6(stem,slope+90);
  z6'r=z6'l=dir slope;
  pos10(vstem,-270); y9=.5[y10r,y8r]; x10-.5vstem=hround x8;
  filldraw double_circ_stroke                                   % bowl and tail
    z10e{right}...z9e{up}...club.e(8,7,6);
  pos5(hair,slope-90); z5l=z6r;                                 % attachment
  z4=.5[z3,z5]+whatever*dir slope;                              % small bulge
  pos4(hair,-180); lft x4r=hround(lft x7r+1.5u);
y3+.5stem=h+o; x3+.5stem=hround(rt x9l-.25u); pos3(hair,slope+90);    % top rt
  pos2(stem,slope+90); z2l=z3l;   
  filldraw circ_stroke z2e{-dir slope}..z4{down}...z5e{dir slope};
                        % where handle attaches
  pos1(curve,0); lft x1l=hround(lft x7r+.25u); y1+.5curve=h+o;  % end of handle
  filldraw circ_stroke z1e{down}...z3e{dir slope};
enddef;
 
cmchar "Lowercase xi";
beginchar("x",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8,9,10); endchar;
 
picture savedpicture;
 
% OMIKRON
 
def width = 9.5u enddef;
def dims = width#,x_height#,0 enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter =
  pickup fine.nib;
  lft x4r=hround .75u; x8r=w-x4r; y4r=y8r=.5x_height;   % top and bottom
  top y2r=x_height+oo; bot y6r=-oo; x2r=x6r=.5w;        % right and left
  filldraw stroke
    gr_arc.e(8,1,2)(vair,curve,otilt) & gr_arc.e(2,3,4)(vair,curve,otilt) &
    gr_arc.e(4,5,6)(vair,curve,otilt) & gr_arc.e(6,7,8)(vair,curve,otilt) ;
  numeric x_baryctr; x_baryctr=x2;                      % accent reference
enddef;
 
 
cmchar "Lowercase omicron";
beginchar("o",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8); endchar;
 
cmchar "Lowercase omicron with rough breathing";
beginchar(oct"137",width#,acc_ht#,0);
this_letter; spirit(x_baryctr)<; endchar;
 
cmchar "Lowercase omicron with smooth breathing";
beginchar(oct"140",width#,acc_ht#,0);
this_letter; spirit(x_baryctr)>; endchar;
 
cmchar "Lowercase omicron with acute";
beginchar(oct"103",width#,acc_ht#,0);
this_letter; acute(x_baryctr); endchar;
 
cmchar "Lowercase omicron with rough breathing and acute";
beginchar(oct"133",width#,acc_ht#,0);
this_letter; spirit_acute(x_baryctr)<; endchar;
 
cmchar "Lowercase omicron with smooth breathing and acute";
beginchar(oct"135",width#,acc_ht#,0);
this_letter; spirit_acute(x_baryctr)>; endchar;
 
picture savedpicture;
 
% PI
 
def dims = 9.5u#,x_height#,0 enddef;
def ital = 0 enddef;
def fit_params = -.25,0 enddef;
 
def gen_letter =
  pickup fine.nib;
  pi_bar;                                                       % bar
  pos4(hair,0); pos7(hair,0); y4=y7=y2;                         % attachments
  lft x4l-(x1-.5hair)=lft x7l-rt x4r=rt x3-rt x7r;
  pos5(hair,0); pos8(hair,0); y5=y8=.5x_height; x5=x4; x8=x7;   % midstems
  x6+.5stem=hround(rt x4r if not straight:-.25u fi); y6-.5stem=-oo; % left stem
  numeric slope; slope=angle((z5-z6)xscaled2); pos6(.44iota_dp,slope-90);
  filldraw circ_stroke z6e...z5e---z4e;
  x9=x7+1.5u; bot y9l=-oo; pos9(stem,90); alpha_tail(9,10);     % right stem
  filldraw stroke z10e...z9e{left}...z8e---z7e; 
enddef;
 
cmchar "Lowercase pi";
beginchar("p",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8,9,10); endchar;
 
picture savedpicture;
 
% RO
 
def width = 8.5u enddef;
def height = x_height enddef;
def depth = desc_depth enddef;
def dims = width#,height#,depth# enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter =
  pickup fine.nib;
  lft x4r=hround .75u; x8r=w-x4r; y4r=y8r=.5h;          % left and right
  top y2r=h+oo; bot y6r=-oo; x2r=x6r=.5w;               % top and bottom
  filldraw stroke
    gr_arc.e(4,5,6)(curve,vair,-otilt) & gr_arc.e(6,7,8)(curve,vair,-otilt) &
    gr_arc.e(8,1,2)(curve,vair,-otilt) & gr_arc.e(2,3,4)(curve,vair,-otilt);
  if straight:
    y9-.5stem=-d-oo; x9=x4; pos9(stem,180);                     % end of handle
    filldraw circ_stroke z9e..z4e;
  else:
    y9=-d-oo; x9=lft x4r+.5stem;                           % end of handle
    pos9(stem,angle((z9-z4)xscaled3)-120); z9'r=z9'l=(z9-z4)xscaled3;
    rt x10l=lft x10r+vair;                      % vertical tangents of handle
    x10r=x4r-epsilon; assign_z4'r((-2eps,-1));  % so club.r won't get confused
    filldraw double_circ_stroke club.e(4,10,9);
  fi 
  numeric x_baryctr; x_baryctr=x2;                     % breathing placement
enddef;
 
cmchar "Lowercase rho";
beginchar("r",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8,9,10); endchar;
 
picture savedpicture;
 
% SIGMA
 
def dims= 8u#,x_height#,desc_depth# enddef; 
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter =
  pickup fine.nib;
  pos4(hair,-180); y4=.5h; lft x4r=hround .75u;                 %  left bulge
  pos6(hair,-180); rt x6l=hround(w-.75u); y6=-.5stem;           %  bottom right
  top y3r=h+oo; x3+.5stem=rt x6l; pos3(stem,90);                %  top right
pos5(stem,-90); bot y5r=0; x5=.5w;                            %  inflection pt
  pos7(vstem,-270); y6=.5[y7r,y5r]; x7-.5vstem=hround x5;
filldraw double_circ_stroke                                   %  bowl and tail
    z7e{right}...z6e{up}...z5e{left}...z4e{up}...z3e{right};
enddef;
 
cmchar "Final lowercase sigma";
beginchar("c",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8); endchar;
 
numeric gen_sigma; gen_sigma=1;
 
def dim_sigma =  9.5u#,x_height#,0 enddef; 
def ital_sigma = 0 enddef;
def fit_params_sigma = 0,.75u# enddef;
 
def mid_sigma=
italcorr ital_sigma; adjust_fit(fit_params_sigma);
if known pic.c: currentpicture:=pic.c; else: gen_mid_sigma; fi
if not working_hard : picture pic.c; pic.c=currentpicture; fi
enddef;
 
def gen_mid_sigma =
  pickup fine.nib;
  lft x4r=hround .75u; rt x8r=w-lft x4r;        % left and right bulge
  top y2r=h; bot y6r=-oo; x2r=x6r;              % top and bottom
  numeric fake; fake=y2r-(vstem-currentbreadth); % approx height of |z2l|
  2y4r=y2r+y6r; 2y8r=fake+y6r;
  (x8r-x6r)/(y8r-y6r)=-(x4r-x6r)/(y4r-y6r);     % determine |x6r|
  y1r=y2r;rt x1=hround(rt x8r+u); pos1(flare,90);       % tip
  filldraw stroke z1e..gr_arc.e(2,3,4)(vstem,curve,otilt)
    & gr_arc.e(4,5,6)(vair,curve,otilt)         % top stroke and left bowl
    & gr_arc.e(6,7,8)(vair,curve,otilt);        % bottom part of right bowl
  z9l=z2l; pos9(vair,180); z9'l=z2'l; z9'r=left;
  filldraw stroke z8e{z8'e}..z9e{z9'e};      % top part of right bowl
enddef;
 
cmchar "Initial and medial lowercase sigma";
beginchar("s",dim_sigma);
mid_sigma; penlabels(1,2,3,4,5,6,7,8,9); endchar;
 
picture savedpicture;
 
% TAU
 
def dims = 8.5u#,x_height#,0 enddef;
def ital = 0 enddef;
def fit_params = -.25,0 enddef;
 
def gen_letter=
  pickup fine.nib;
  pi_bar;                                                       % bar
  pos4(hair,0); y4=y2; lft x4l-(x1-.5hair)=rt x3-rt x4r;        % attachment
  pos5(hair,0); y5=.5x_height; x5=x4;                           % midstems
  x6=x4+1.5u; bot y6l=-oo; pos6(stem,90); alpha_tail(6,7);      % stem
  filldraw stroke z7e...z6e{left}...z5e---z4e; 
enddef;
 
cmchar "Lowercase tau";
beginchar("t",dims);
this_letter; penlabels(1,2,3,6,7,8); endchar;
 
picture savedpicture;
 
% UPSILON
 
def width = 9u enddef;
def dims = width#,x_height#,0 enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter=
  pickup fine.nib;
  y2+.5stem=x_height+o; x2-.5stem=hround.75u;                   % left tip
  lft x4r=hround(x2-.5stem+.75u); y4r=.5x_height;               % left middle
  y8r=y4r; rt x8r=hround(w-.75u);                               % right bulge
  x6r=.5[x4r,x8r]; bot y6r=-oo;                                 % bottom
  numeric tilt;
  tilt:=min(2*otilt,.5);
  filldraw stroke
    gr_arc.e(6,7,8)(vair,stem,tilt) ;
  filldraw stroke
    gr_arc.e(4,5,6)(vair,.4[vair,stem],tilt) ;
  y9+.5hair=x_height+o; x9=x8-u; pos9(hair,angle ((z8-z9) xscaled 2)+90);
  filldraw circ_stroke z9e...{-z8'e}z8e;
  pos2(stem,angle((z4-z2) xscaled 2)-90);
  filldraw circ_stroke z2e...{z4'e}z4e;
  numeric x_baryctr; x_baryctr=.5w; 
enddef;
 
cmchar "Lowercase upsilon";
beginchar("u",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8,9); endchar;
 
cmchar "Lowercase upsilon with rough breathing";
beginchar(oct"031",width#,acc_ht#,0);
this_letter; spirit(x_baryctr)<; endchar;
 
cmchar "Lowercase upsilon with smooth breathing";
beginchar(oct"032",width#,acc_ht#,0);
this_letter; spirit(x_baryctr)>; endchar;
 
cmchar "Lowercase upsilon with acute";
beginchar(oct"033",width#,acc_ht#,0);
this_letter; acute(x_baryctr); endchar;
 
cmchar "Lowercase upsilon with rough breathing and acute";
beginchar(oct"034",width#,acc_ht#,0);
this_letter; spirit_acute(x_baryctr)<; endchar;
 
cmchar "Lowercase upsilon with smooth breathing and acute";
beginchar(oct"166",width#,acc_ht#,0);
this_letter; spirit_acute(x_baryctr)>; endchar;
 
cmchar "Lowercase upsilon with circumflex";
beginchar(oct"036",width#,circ_ht#,0);
this_letter; circumflex(x_baryctr); endchar;
 
picture savedpicture;
 
% FI
 
def dims = 10.5u#,x_height#,desc_depth# enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter =
  pickup fine.nib;
  lft x4r=w-rt x8r=hround .75u; y4r=y8r=.5h;
  x6r=.5[x4r,x8r]; bot y6r=-oo;
  numeric tilt; tilt:=min(2*otilt,.5);
  filldraw stroke gr_arc.e(6,7,8)(vair,stem,tilt) ;
  filldraw stroke gr_arc.e(4,5,6)(vair,.5[vair,stem],tilt) ;
  y2+.5stem=h+o; x2+.5stem=hround(x6-1.5u);
  pos2(stem,angle((z2-z4)xscaled 2)+90);
  filldraw circ_stroke z2e...{z4'e}z4e;
  pos10(stem,180); pos11(hair,180);
  y10-.5stem=-d-o; y11=.25h; x10=x11=x6;
  x9r=.5[x10r,x8r]; top y9r=h+o;
  filldraw stroke gr_arc.e(8,20,9)(.25[vair,stem],.5[vair,stem],.5tilt);
  filldraw circ_stroke z10e..z11e{up}..{-z9'e}z9e; 
enddef;
 
cmchar "Lowercase phi";
beginchar("f",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8,9,10,11,12,20,21); endchar;
 
picture savedpicture;
 
% QI
 
def ital = 0 enddef;
def fit_params = 0,0 enddef;
def dims =  10u#,x_height#,desc_depth# enddef; 
 
def gen_letter=
  pickup fine.nib;
  x1-.5stem=hround .75u; y1+.5stem=h+oo;                % top left
  z1'=(1,.2); pos1(stem,angle z1'+90);                  % direction at z1
  x3+x1=w; y3-.5stem=-d-oo; pos3(stem,angle z1'+90);    % bottom right
  z2=.5[z1,z3];                                         % attachment
  z2'=(z3-z1)yscaled 2; pos2(hair,angle z2'+90);        % direction at z4
  filldraw double_circ_stroke z1e{z1'}... z2e{(z3-z1)yscaled 2}...{z1'}z3e;
  lft x7l=hround .75u; bot y7l=-d-oo; z2=.5[z7l,z8r]=.5[z7r,z8l];
  numeric stem'; stem'=stem-currentbreadth;
 numeric theta; theta=angle(z8r-z7l)+angle((x8r-x7l)++(y8r-y7l)+-+stem',stem');
  x7r=x7l+(stem'/sind theta); y7r=y7l;
  filldraw stroke z7e..z8e; 
enddef;
 
cmchar "Lowercase chi";
beginchar("q",dims);
this_letter; penlabels(1,2,3,7,8); endchar;
 
picture savedpicture;
 
% YI
 
def dims = 10.5u#,asc_height#,desc_depth# enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter =
  pickup fine.nib;
  lft x2r=w-rt x6r=.75u; y2r=y6r=.6x_height;            % left and right bulges
  x4r=.5[x2r,x6r]; bot y4r=-oo;                         % bottom
  numeric tilt; tilt:=min(2*otilt,.5);
  filldraw stroke gr_arc.e(4,5,6)(vair,stem,tilt) ;
  filldraw stroke gr_arc.e(2,3,4)(vair,.4[vair,stem],tilt) ;
  y7+.5hair=x_height+o; x7+.5hair=hround(rt x6r-.75u);          % right tip
  pos7(hair,angle ((z6-z7) xscaled 2)+90);
  filldraw circ_stroke z7e...{-z6'e}z6e;
  y1+.5stem=x_height+o; x1-.5stem=hround(lft x2r+.5u);  % left tip
  pos1(stem,angle((z2-z1) xscaled 2)-90);
  filldraw circ_stroke z1e...{z2'e}z2e;
  pos10(stem,0); pos9(hair,0); pos8(stem,0);            % vertical stroke
  y10-.5stem=-d-o; y9=.25x_height; y8+.5stem=h+o; x10=x9=x8=x4;
  filldraw double_circ_stroke z10e..z9e{up}..z8e; 
enddef;
 
cmchar "Lowercase psi";
beginchar("y",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8,9,10); endchar;
 
picture savedpicture;
 
% WMEGA
 
def width =  12u enddef; 
def height = x_height enddef;
def dims = width#,height#,0 enddef;
def ital = 0 enddef;
def fit_params = 0,0 enddef;
 
def gen_letter =
  pickup fine.nib;
  pos2(stem,-180); pos8(stem,360); lft x2r=w-rt x8r=hround.75u;
  y2=y8=.8bar_height;                                   % left and right bulges
  y4=y6=bar_height; .5[x4,x6]=.5w; rt x4r-lft x6r=stem;
pos4(hair,0); pos6(hair,180);                         % left and right of loop
  bot y3r=bot y7r=-oo; x3=.5[x2,x4]; x7+.25u=.5[x6,x8];
  pos3(vstem,-150); pos7(vstem,330);                    % left and right bottom
  top y1r=x_height+o=top y9r;                           % left tip
  x1=.5[x2,.5w]; pos1(.2[stem,hair],angle(-.5w,y2-x_height)-90);
x9=.5[x8,.5w]; pos9(.8[stem,hair],angle(-.5w,x_height-y2)-90);        % rt tip
  filldraw stroke z1e{(z2-z1) xscaled 2}...z2e{down}...z3e{right};
  filldraw stroke z7e{right}...{up}z8e...{(z9-z8) xscaled 2}z9e;
  drawloop(3,4,6,7); 
  numeric x_baryctr; x_baryctr=.5[x4,x6];
  numeric pos_stem; pos_stem=x_baryctr; 
enddef;
 
cmchar "Lowercase omega";
beginchar("w",dims);
this_letter; penlabels(0,1,2,3,4,5,6,7,8,9); endchar;
 
cmchar "Lowercase omega with rough breathing";
beginchar(oct"015",width#,acc_ht#,0);
this_letter; spirit(x_baryctr)<; endchar;
 
cmchar "Lowercase omega with smooth breathing";
beginchar(oct"016",width#,acc_ht#,0);
this_letter; spirit(x_baryctr)>; endchar;
 
cmchar "Lowercase omega with acute";
beginchar(oct"017",width#,acc_ht#,0);
this_letter; acute(x_baryctr); endchar;
 
cmchar "Lowercase omega with rough breathing and acute";
beginchar(oct"020",width#,acc_ht#,0);
this_letter; spirit_acute(x_baryctr)<; endchar;
 
cmchar "Lowercase omega with smooth breathing and acute";
beginchar(oct"021",width#,acc_ht#,0);
this_letter; spirit_acute(x_baryctr)>; endchar;
 
cmchar "Lowercase omega with circumflex";
beginchar(oct"022",width#,circ_ht#,0);
this_letter; circumflex(x_baryctr); endchar;
 
picture pic.iota;
picture savedpicture;