summaryrefslogtreecommitdiff
path: root/language/vispeech/vispeech.mf
blob: 62f0700f23f1dc008c0fc48711492dfa90991e64 (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
% Visible Speech, header file, with macros and everything.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%
mode_setup;

15u#=1pt#;	% Looks pretty good.
loop_h#=loop_w#=100u#;	% seem to be square
vowel_asc#=30u#;
vowel_d#=30u#;
curve_overshoot#=0u#;	% zero, but maybe will change.
apex_overshoot#=4u#;
horiz_gap#=vert_gap#=50u#;	% appear equal.
sidebar#=10u#;
vowel_curl#=20u#;
curve#=20u#;
thin#=10u#;
fine#=7u#;
thick#=13u#;
lmodside#=3/4sidebar#;
rmodside#=sidebar#;
mod_height#=7/8loop_h#;
define_pixels(u,vowel_asc,vowel_d,loop_h,loop_w,curve_overshoot,
	apex_overshoot,vert_gap,horiz_gap,sidebar,vowel_curl,
	curve,thin,fine,thick,lmodside,rmodside,mod_height);

wide_spot=.5;	% widest point on loop, as ratio of other dim.
voice_length=.67;	% length of voicing line, as ratio.

pickup pencircle scaled fine; finepen:=savepen;
pickup pencircle scaled thin; thinpen:=savepen;
pickup pencircle scaled thick; thickpen:=savepen;
pickup pencircle scaled curve; curvepen:=savepen;
pickup penrazor scaled thick; hrazorpen:=savepen;
pickup penrazor scaled thick rotated 90; vrazorpen:=savepen;

path p;
path p[];
string rl;
rl="r";
string tb;
tb="t";
ccode=0;

vardef lside=(sidebar) enddef;
vardef rside=(w-sidebar) enddef;

def fix_width= if odd (rside-lside): w:=w+1 fi enddef;
def fix_height= if odd (h+d): h:=h+1 fi enddef;

% set string rl to "r" or "l" for gap on left or right.
def rtorlft=if rl="r": rt else: lft fi enddef;
def lftorrt=if rl="r": lft else: rt fi enddef;
def zorw=if rl="r": lside else: rside fi enddef;
def worz=if rl="r": rside else: lside fi enddef;
def vmorp=if rl="r": - else: + fi enddef;

def vlooppoints =
fix_height;
h-y1=y5;
y1-y5=vert_gap;
pickup thinpen;
rtorlft x1=worz;
rtorlft x5=worz;
x2=x4=wide_spot[zorw,worz];
top y2=h+curve_overshoot;
bot y4=-curve_overshoot;
pickup curvepen;
lftorrt x3=zorw vmorp curve_overshoot;
y3=.5h;
p:=z1..z2..z3{down}..z4..z5;
penpos1(thin,(angle direction 0 of p) vmorp 90);
penpos2(thin,90);
penpos3(curve,90 - vmorp 90);
penpos4(thin,270);
penpos5(thin,(angle direction 4 of p) vmorp 90);
enddef;

def simplevloop =
vlooppoints;
pickup thinpen;
draw z1..controls postcontrol 0 of p and precontrol 1 of p..z2;
draw z4..controls postcontrol 3 of p and precontrol 4 of p..z5;
cutoff (z1,180+angle direction 0 of p);
cutoff (z5,angle direction 4 of p);
penstroke z2e..z3e{down}..z4e;
labels(1,2,3,4,5);
enddef;

% set string tb to "t" or "b" for gap on top or bottom.
def toporbot=if tb="t": top else: bot fi enddef;
def botortop=if tb="t": bot else: top fi enddef;
def zorh=if tb="t": 0 else: h fi enddef;
def horz=if tb="t": h else: 0 fi enddef;
def hmorp=if tb="t": - else: + fi enddef;

def hlooppoints =
fix_width;
rside-x1=x5-lside;
x1-x5=horiz_gap;
pickup thinpen;
toporbot y1=horz;
toporbot y5=horz;
y2=y4=wide_spot[zorh,horz];
rt x2=rside+curve_overshoot;
lft x4=lside-curve_overshoot;
pickup curvepen;
botortop y3=zorh hmorp curve_overshoot;
x3=.5[lside,rside];
p:=z1..z2..z3{left}..z4..z5;
penpos1(thin,(angle direction 0 of p) hmorp 90);
penpos2(thin,0);
penpos3(curve,0 hmorp 90);
penpos4(thin,180);
penpos5(thin,(angle direction 4 of p) hmorp 90);
enddef;

def simplehloop =
hlooppoints;
pickup thinpen;
draw z1..controls postcontrol 0 of p and precontrol 1 of p..z2;
draw z4..controls postcontrol 3 of p and precontrol 4 of p..z5;
cutoff (z1,180+angle direction 0 of p);
cutoff (z5,angle direction 4 of p);
penstroke z2e..z3e{left}..z4e;
labels(1,2,3,4,5);
enddef;

def vsqig =
transform vsqigtrans;
(lside,0) transformed vsqigtrans = (rside,h);
(lside,h) transformed vsqigtrans = (rside,0);
(rside,0) transformed vsqigtrans = (lside,h);
pickup thinpen;
rt x.taga=rside;
rt x.tagb=rside;
top y.taga=h;
top y.tagb=y.taga - 1/2(h-vert_gap);
draw (z.taga--z.tagb)
	if rl="r": else: rotatedaround(.5[(lside,0),(rside,h)],180) fi;
pickup pencircle scaled .5[fine,thin];
bot y.s.3=0;
1.5*(y.s.3-y.s.2)=y.s.2-y.s.1=y.s.1-y.tagb;
x.s.3=x.s.1+thin;
x.s.2=x.taga+thin;
x.s.1=x.taga-2fine;
draw (z.tagb..z.s.1..z.s.2..z.s.3)
	if rl="r": else: rotatedaround(.5[(lside,0),(rside,h)],180) fi;
labels(taga,tagb,s.1,s.2,s.3)
enddef;

def hsqig =
transform hsqigtrans;
(lside,0) transformed hsqigtrans = (rside,h);
(lside,h) transformed hsqigtrans = (rside,0);
(rside,0) transformed hsqigtrans = (lside,h);
pickup thinpen;
top y.taga=h;
top y.tagb=h;
lft x.taga=lside;
lft x.tagb=x.taga + 1/2(rside-lside-horiz_gap);
draw (z.taga--z.tagb)
	if tb="t": else: rotatedaround(.5[(lside,0),(rside,h)],180) fi;
pickup pencircle scaled .5[fine,thin];
rt x.s.3=rside+fine;
1.5*(x.s.3-x.s.2)=x.s.2-x.s.1=x.s.1-x.tagb;
y.s.3=y.s.1+thin;
y.s.2=y.taga+thin;
y.s.1=y.taga-2fine;
draw (z.tagb..z.s.1..z.s.2..z.s.3)
	if tb="t": else: rotatedaround(.5[(lside,0),(rside,h)],180) fi;
labels(taga,tagb,s.1,s.2,s.3)
enddef;

def vcurlpoints =
  x1.1=x1.2=x5.1=x5.2=x1 vmorp thin;
  lasty:=ypart point infinity of p;
  y1.1=y1 + 1.5thin;
  y1.2=y1 - .5thin;
  y5.1=lasty - 1.5thin;
  y5.2=lasty + .5thin;
enddef;

def vcurl =
  vcurlpoints;
  pickup thinpen;
  cutdraw z1.1{z1-z2}..z1..z1.2..tension 2 and 1..{vmorp right}z2;
  cutdraw z5.1{point infinity of p-(point ((length p)-1) of p)}..
     point infinity of p..z5.2
     ..tension 2 and 1..{vmorp right}(point ((length p)-1) of p);
  cullit;
enddef;

def hcurlpoints =
  y1.1=y1.2=y5.1=y5.2=y1 hmorp thin;
  lastx:=xpart point infinity of p;
  x1.1=x1 + 1.7thin;
  x1.2=x1 - .5thin;
  x5.1=lastx - 1.7thin;
  x5.2=lastx + .5thin;
enddef;

def hcurl =
  hcurlpoints;
  pickup thinpen;
  cutdraw z1.1{z1-z2}..z1..z1.2..tension 2 and 1..{hmorp up}z2;
  cutdraw z5.1{point infinity of p-(point ((length p)-1) of p)}..
     point infinity of p..z5.2
     ..tension 2 and 1..{hmorp up}(point ((length p)-1) of p);
  cullit;
enddef;

def begloopchar(expr code) =
beginchar(code,loop_w#+2sidebar#,loop_h#,0u#); enddef;

def autoloopchar = begloopchar(incr ccode) enddef;

def vvoice =
  z.larynx=if known x7: z4 vmorp (1/2curve,0) else: z3 fi;
  y.voice=y.larynx;
  x.voice=voice_length[if rl="r": lside,rside else: rside,lside fi];
  pickup vrazorpen;
  draw z.voice--z.larynx;
enddef;

def hvoice =
  z.larynx=if known x7: z4 hmorp (0,1/2curve) else: z3 fi;
  x.voice=x.larynx;
  y.voice=voice_length[if tb="t": 0,h else: h,0 fi];
  pickup hrazorpen;
  draw z.voice--z.larynx;
enddef;

vardef upward(expr x) =
  ypart direction 1 of (z1{curl 5}..(x,y2)..z3{down}..z4) > 0
enddef;

def vdintpoints =
h-y1=y7;
y1-y7=vert_gap;
pickup thinpen;
rtorlft x1=worz;
rtorlft x7=worz;
x2=x6;
top y2=h+curve_overshoot;
bot y6=-curve_overshoot;
pickup curvepen;
lftorrt x3=zorw vmorp curve_overshoot;
x5=x3;
y3-y5=.5h;
y5=1/4h;
lftorrt x4=(zorw - vmorp 1.2curve) vmorp curve_overshoot;
y4=.5h;
x2=solve upward(x1,x3);
p:=z1{curl 5}..z2..z3{down}..z4&
   z4..z5{down}..z6..{curl 5}z7;
penpos1(thin,(angle direction 0 of p) vmorp 90);
penpos2(thin,90);
penpos3(curve,90 - vmorp 90);
penpos4(curve,90 - vmorp 90);
penpos5(curve,90 - vmorp 90);
penpos6(thin,270);
penpos7(thin,(angle direction 6 of p) vmorp 90);
enddef;


vardef rightward(expr y) =
  xpart direction 1 of (z1{curl 5}..(x2,y)..z3{left}..z4) > 0
enddef;

def hdintpoints =
rside-x1=x7-lside;
x1-x7=horiz_gap;
pickup thinpen;
toporbot y1=horz;
toporbot y7=horz;
y2=y6;
rt x2=rside+curve_overshoot;
lft x6=lside-curve_overshoot;
pickup curvepen;
botortop y3=zorh hmorp curve_overshoot;
y5=y3;
x3-x5=.5(rside-lside);
x5=1/4[lside,rside];
botortop y4=(zorh - hmorp 1.2curve) hmorp curve_overshoot;
x4=.5[lside,rside];
y2=solve rightward(y1,y3);
p:=z1{curl 5}..z2..z3{left}..z4&
   z4..z5{left}..z6..{curl 5}z7;
penpos1(thin,(angle direction 0 of p) - hmorp 90);
penpos2(thin,0);
penpos3(curve,0 hmorp 90);
penpos4(curve,0 hmorp 90);
penpos5(curve,0 hmorp 90);
penpos6(thin,180);
penpos7(thin,(angle direction 6 of p) - hmorp 90);
enddef;

def vclose=
  pickup thinpen;
  top rtorlft z.one=(worz,h);
  bot rtorlft z.two=(worz,0);
  draw z.one--z.two;
enddef;

def hclose=
  pickup thinpen;
  lft toporbot z.one=(lside,horz);
  rt toporbot z.two=(rside,horz);
  draw z.one--z.two;
enddef;

def bothvloop = for t="r","l": for u=1,2: enddef;

def bothhloop = for t="t","b": for u=1,2: enddef;


full_serif=curve;    % *half* the width of a full-sized serif.
slab=fine;
curl_w=3/2curve;

pickup penrazor scaled slab rotated 90; serifpen:=savepen;

def serifize(expr y) =
  pickup serifpen;
  draw (x.stem-full_serif,y)--(x.stem+full_serif,y);
enddef;

def roundingbar =
  serifize(1/2[-d,h]) enddef;

def vowelstem =
  pickup hrazorpen;
  draw (x.stem,0)--(x.stem,loop_h);
enddef;

curl_top=3/8curl_w;

def widecurl(expr pt,ud,rl) =
  % ud and rl are 1 or -1 for up and right or down and left, resp.
  begingroup save x; save y;
  z1=pt;
  % allow for top or bot...
  z2=pt+(curl_top*rl,if ud>0: vowel_asc - else: -vowel_d + fi 1/2thin);
  % allow for lft or rt...
  z3=pt+(curl_w*rl-1/2thin*rl,0);
%  penpos1(thick,90-ud*90);
%  penpos2(thin,-90*rl);
%  penstroke z1e{up*ud}..z2e{right*rl};
  pickup pencircle xscaled thick yscaled thin;
  draw z1{up*ud}..z2{right*rl};
  pickup thinpen;
  draw z2{right*rl}..{down*ud}z3;
  cullit;
  cutoff(z3,270*ud);
  endgroup;
enddef;

def closebulb(expr pt,ud,rl) = 
  begingroup save x; save y;
%  pickup pencircle scaled 1u;
  z1=pt-(rl*1/2thick,0);
%  z2=pt+(curl_top*rl,if ud>0: vowel_asc else: -vowel_d fi);
%  z3=pt+(curl_w*rl,fine*ud);
%  z4=z2+(-rl*1/4fine,-ud*fine);
%  z5=z1+(rl*thick,0);
%  draw z1{up*ud}..{rl*right}z2..{ud*down}z3..{ud*up}z4&
%	z4..{ud*down}z5;
%  labels(1,2,3,4,5);
  p1:=fullcircle scaled curve shifted 
	(pt + (rl*(curl_w-1/2curve),
		(if ud>0: vowel_asc - else: -vowel_d + fi 1/2curve)));
  fill p1;
  z2=point if ud>0: 2 else: 6 fi of p1;
  z3=z1+(rl*thick,0);
  z4=point if rl>0: 4 else: 0 fi of p1;
  fill z1{ud*up}..{rl*right}z2--z4..z3{ud*down}--cycle;
  endgroup;
enddef;

vardef llside=(3/4lmodside) enddef;	% modifiers and breath glide
				  	% are shifted left.
vardef rrside=(w-rmodside) enddef; 

pickup penrazor scaled 2/3fine rotated 90; smallserifpen:=savepen;

def width_serif(expr ht)= draw (lside,ht)--(rside,ht) enddef;

%%%%%%%%%%%
font_slant 0;
font_normal_space 70u#;
font_normal_stretch 15u#;
font_normal_shrink 10u#;
font_x_height loop_h#;
font_quad loop_w#;
font_extra_space 0;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

input viscons;
input visvowels;
input visglides;
input vismods;