1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: xform.c,v 2.25 2003/05/13 17:58:32 greg Exp $"; |
3 |
#endif |
4 |
/* |
5 |
* xform.c - program to transform object files. |
6 |
* Transformations must preserve aspect ratio. |
7 |
* |
8 |
* 10/19/85 |
9 |
* 11/6/86 Finally added error checking! |
10 |
*/ |
11 |
|
12 |
#include <ctype.h> |
13 |
#include <stdio.h> |
14 |
|
15 |
#include "standard.h" |
16 |
#include "platform.h" |
17 |
#include "paths.h" |
18 |
#include "object.h" |
19 |
#include "otypes.h" |
20 |
|
21 |
int xac; /* global xform argument count */ |
22 |
char **xav; /* global xform argument pointer */ |
23 |
int xfa; /* start of xf arguments */ |
24 |
|
25 |
XF tot; /* total transformation */ |
26 |
int reverse; /* boolean true if scene mirrored */ |
27 |
|
28 |
int invert; /* boolean true to invert surfaces */ |
29 |
|
30 |
int expand; /* boolean true to expand commands */ |
31 |
|
32 |
char *newmod; /* new modifier for surfaces */ |
33 |
|
34 |
char *idprefix; /* prefix for object identifiers */ |
35 |
|
36 |
FUN ofun[NUMOTYPE] = INIT_OTYPE; /* default types and actions */ |
37 |
|
38 |
short tinvers[NUMOTYPE]; /* inverse types for surfaces */ |
39 |
|
40 |
int nrept = 1; /* number of array repetitions */ |
41 |
|
42 |
int stdinused = 0; /* stdin has been used by -f option? */ |
43 |
|
44 |
char mainfn[MAXPATH]; /* main file name */ |
45 |
FILE *mainfp = NULL; /* main file pointer */ |
46 |
|
47 |
#define progname (xav[0]) |
48 |
|
49 |
|
50 |
main(argc, argv) /* get transform options and transform file */ |
51 |
int argc; |
52 |
char *argv[]; |
53 |
{ |
54 |
int mal_prefix = 0; |
55 |
char *fname; |
56 |
int a; |
57 |
/* check for argument list file */ |
58 |
for (a = 1; a < argc; a++) |
59 |
if (!strcmp(argv[a], "-f")) |
60 |
return(doargf(argc, argv, a)); |
61 |
/* check for regular array */ |
62 |
for (a = 1; a < argc; a++) |
63 |
if (!strcmp(argv[a], "-a")) |
64 |
return(doarray(argc, argv, a)); |
65 |
|
66 |
initotypes(); /* initialize */ |
67 |
invert = 0; |
68 |
expand = 1; |
69 |
newmod = NULL; |
70 |
idprefix = NULL; |
71 |
|
72 |
for (a = 1; a < argc; a++) { |
73 |
if (argv[a][0] == '-') |
74 |
switch (argv[a][1]) { |
75 |
case 'm': |
76 |
if (argv[a][2] | a+1 >= argc) |
77 |
break; |
78 |
a++; |
79 |
if (newmod == NULL) |
80 |
newmod = argv[a]; |
81 |
continue; |
82 |
case 'n': |
83 |
if (argv[a][2] | a+1 >= argc) |
84 |
break; |
85 |
a++; |
86 |
if (idprefix == NULL) |
87 |
idprefix = argv[a]; |
88 |
else { |
89 |
register char *newp; |
90 |
newp = (char *)malloc(strlen(idprefix)+ |
91 |
strlen(argv[a])+2); |
92 |
if (newp == NULL) |
93 |
exit(2); |
94 |
sprintf(newp, "%s.%s", |
95 |
idprefix, argv[a]); |
96 |
if (mal_prefix++) |
97 |
free((void *)idprefix); |
98 |
idprefix = newp; |
99 |
} |
100 |
continue; |
101 |
case 'c': |
102 |
if (argv[a][2]) |
103 |
break; |
104 |
expand = 0; |
105 |
continue; |
106 |
case 'e': |
107 |
if (argv[a][2]) |
108 |
break; |
109 |
expand = 1; |
110 |
continue; |
111 |
case 'I': |
112 |
if (argv[a][2]) |
113 |
break; |
114 |
invert = !invert; |
115 |
continue; |
116 |
} |
117 |
break; |
118 |
} |
119 |
|
120 |
xav = argv; |
121 |
xfa = a; |
122 |
|
123 |
a += xf(&tot, argc-a, argv+a); |
124 |
|
125 |
if (reverse = tot.sca < 0.0) |
126 |
tot.sca = -tot.sca; |
127 |
if (invert) |
128 |
reverse = !reverse; |
129 |
|
130 |
if (a < argc && argv[a][0] == '-') { |
131 |
fprintf(stderr, "%s: command line error at '%s'\n", |
132 |
argv[0], argv[a]); |
133 |
exit(1); |
134 |
} |
135 |
|
136 |
xac = a; |
137 |
/* simple header */ |
138 |
putchar('#'); |
139 |
for (a = 0; a < xac; a++) |
140 |
printf(" %s", xav[a]); |
141 |
putchar('\n'); |
142 |
/* transform input */ |
143 |
if (xac == argc) { |
144 |
if (stdinused) { |
145 |
fprintf(stderr, "%s: cannot use stdin more than once\n", |
146 |
argv[0]); |
147 |
exit(1); |
148 |
} |
149 |
openmain(NULL); |
150 |
xform(mainfn, mainfp); |
151 |
} else |
152 |
for (a = xac; a < argc; a++) { |
153 |
openmain(argv[a]); |
154 |
xform(mainfn, mainfp); |
155 |
} |
156 |
|
157 |
if (mal_prefix) |
158 |
free((void *)idprefix); |
159 |
return(0); |
160 |
} |
161 |
|
162 |
|
163 |
doargf(ac, av, fi) /* take argument list from file */ |
164 |
char **av; |
165 |
int ac, fi; |
166 |
{ |
167 |
int inquote; |
168 |
char *newav[256], **avp; |
169 |
char argbuf[1024]; |
170 |
char newid[128]; |
171 |
char *oldid; |
172 |
register char *cp; |
173 |
FILE *argfp; |
174 |
int n, i, k, newac, err; |
175 |
|
176 |
if (fi >= ac-1 || (av[fi+1][0] == '-' && av[fi+1][1] != '\0')) { |
177 |
fprintf(stderr, "%s: missing file for -f option\n", av[0]); |
178 |
exit(1); |
179 |
} |
180 |
if (av[fi+1][0] == '-' && av[fi+1][1] == '\0') { |
181 |
if (stdinused++) { |
182 |
fprintf(stderr, |
183 |
"%s: cannot use stdin more than once\n", |
184 |
av[0]); |
185 |
exit(1); |
186 |
} |
187 |
argfp = stdin; |
188 |
n = 100; /* we just don't know! */ |
189 |
} else { |
190 |
if ((argfp = fopen(av[fi+1], "r")) == NULL) { |
191 |
fprintf(stderr, |
192 |
"%s: cannot open argument file \"%s\"\n", |
193 |
av[0], av[fi+1]); |
194 |
exit(1); |
195 |
} |
196 |
n = 0; /* count number of lines in file */ |
197 |
while (fgetline(argbuf,sizeof(argbuf),argfp) != NULL) |
198 |
n += argbuf[0] && argbuf[0] != '#'; |
199 |
if (!n) { |
200 |
fprintf(stderr, "%s: empty argument file \"%s\"\n", |
201 |
av[0], av[fi+1]); |
202 |
exit(1); |
203 |
} |
204 |
nrept *= n; |
205 |
rewind(argfp); |
206 |
} |
207 |
err = 0; k = 0; /* read each arg list and call main */ |
208 |
while (fgetline(argbuf,sizeof(argbuf),argfp) != NULL) { |
209 |
if (!argbuf[0] || argbuf[0] == '#') |
210 |
continue; |
211 |
avp = newav+2; |
212 |
avp[0] = av[0]; |
213 |
for (i = 1; i < fi; i++) |
214 |
avp[i] = av[i]; |
215 |
newac = i; |
216 |
cp = argbuf; /* parse new words */ |
217 |
if (*cp == '!') cp++; |
218 |
if (!strncmp(cp, "xform ", 6)) cp += 6; |
219 |
inquote = 0; |
220 |
for ( ; ; ) { |
221 |
skipspaces: |
222 |
while (isspace(*cp)) /* nullify spaces */ |
223 |
*cp++ = '\0'; |
224 |
if ((*cp == '"' | *cp == '\'')) |
225 |
inquote = *cp++; |
226 |
if (!*cp) /* all done? */ |
227 |
break; |
228 |
if (cp[0] == '\\' && cp[1]) |
229 |
if (*++cp == '\n') |
230 |
goto skipspaces; |
231 |
avp[newac++] = cp; /* add argument to list */ |
232 |
if (inquote) { |
233 |
while (*++cp) |
234 |
if (*cp == inquote) { |
235 |
*cp++ = '\0'; |
236 |
break; |
237 |
} |
238 |
} else { |
239 |
while (*++cp && !isspace(*cp)) |
240 |
; |
241 |
} |
242 |
} |
243 |
for (i = fi+2; i < ac; i++) |
244 |
avp[newac++] = av[i]; |
245 |
avp[newac] = NULL; |
246 |
oldid = NULL; |
247 |
for (i = 2; i < newac; i++) |
248 |
if (!strcmp(avp[i-1], "-n")) { |
249 |
oldid = avp[i]; |
250 |
avp[i] = newid; |
251 |
break; |
252 |
} |
253 |
if (oldid == NULL) { |
254 |
newav[0] = av[0]; |
255 |
newav[1] = "-n"; |
256 |
newav[2] = newid; |
257 |
avp = newav; |
258 |
newac += 2; |
259 |
} |
260 |
if (oldid == NULL) |
261 |
sprintf(newid, "i%d", k); |
262 |
else |
263 |
sprintf(newid, "%s.%d", oldid, k); |
264 |
err |= main(newac, avp); |
265 |
k++; |
266 |
} |
267 |
fclose(argfp); |
268 |
return(err); |
269 |
} |
270 |
|
271 |
|
272 |
doarray(ac, av, ai) /* make array */ |
273 |
char **av; |
274 |
int ac, ai; |
275 |
{ |
276 |
char *newav[256], **avp; |
277 |
char newid[128], repts[32]; |
278 |
char *oldid = NULL; |
279 |
int n, i, err; |
280 |
|
281 |
if (ai >= ac-1 || (n = atoi(av[ai+1])) <= 0) { |
282 |
fprintf(stderr, "%s: missing count for -a option\n", av[0]); |
283 |
exit(1); |
284 |
} |
285 |
nrept *= n; |
286 |
avp = newav+2; |
287 |
avp[0] = av[0]; |
288 |
for (i = 1; i < ac; i++) |
289 |
if (!strcmp(av[i-1], "-n")) { |
290 |
oldid = av[i]; |
291 |
avp[i] = newid; |
292 |
} else |
293 |
avp[i] = av[i]; |
294 |
avp[ai] = "-i"; |
295 |
avp[ai+1] = repts; |
296 |
avp[i] = NULL; |
297 |
if (oldid == NULL) { |
298 |
newav[0] = av[0]; |
299 |
newav[1] = "-n"; |
300 |
newav[2] = newid; |
301 |
avp = newav; |
302 |
ac += 2; |
303 |
} |
304 |
err = 0; |
305 |
for (i = 0; i < n; i++) { |
306 |
if (oldid == NULL) |
307 |
sprintf(newid, "a%d", i); |
308 |
else |
309 |
sprintf(newid, "%s.%d", oldid, i); |
310 |
sprintf(repts, "%d", i); |
311 |
err |= main(ac, avp); |
312 |
} |
313 |
return(err); |
314 |
} |
315 |
|
316 |
|
317 |
xform(name, fin) /* transform stream by tot.xfm */ |
318 |
char *name; |
319 |
register FILE *fin; |
320 |
{ |
321 |
int nobjs = 0; |
322 |
register int c; |
323 |
|
324 |
while ((c = getc(fin)) != EOF) { |
325 |
if (isspace(c)) /* blank */ |
326 |
continue; |
327 |
if (c == '#') { /* comment */ |
328 |
putchar(c); |
329 |
do { |
330 |
if ((c = getc(fin)) == EOF) |
331 |
return; |
332 |
putchar(c); |
333 |
} while (c != '\n'); |
334 |
} else if (c == '!') { /* command */ |
335 |
ungetc(c, fin); |
336 |
xfcomm(name, fin); |
337 |
nobjs++; |
338 |
} else { /* object */ |
339 |
ungetc(c, fin); |
340 |
xfobject(name, fin); |
341 |
nobjs++; |
342 |
} |
343 |
} |
344 |
if (nobjs == 0) |
345 |
fprintf(stderr, "%s: (%s): warning - empty file\n", |
346 |
progname, name); |
347 |
} |
348 |
|
349 |
|
350 |
xfcomm(fname, fin) /* transform a command */ |
351 |
char *fname; |
352 |
FILE *fin; |
353 |
{ |
354 |
FILE *pin; |
355 |
char buf[512]; |
356 |
int i; |
357 |
|
358 |
fgetline(buf, sizeof(buf), fin); |
359 |
if (expand) { |
360 |
if ((pin = popen(buf+1, "r")) == NULL) { |
361 |
fprintf(stderr, "%s: (%s): cannot execute \"%s\"\n", |
362 |
progname, fname, buf); |
363 |
exit(1); |
364 |
} |
365 |
xform(buf, pin); |
366 |
pclose(pin); |
367 |
} else { |
368 |
printf("\n%s", buf); |
369 |
if (xac > 1) { |
370 |
printf(" | %s -e", xav[0]); /* expand next time */ |
371 |
for (i = 1; i < xac; i++) |
372 |
if (i >= xfa || strcmp(xav[i], "-c")) |
373 |
printf(" %s", xav[i]); |
374 |
} |
375 |
putchar('\n'); |
376 |
} |
377 |
} |
378 |
|
379 |
|
380 |
xfobject(fname, fin) /* transform an object */ |
381 |
char *fname; |
382 |
FILE *fin; |
383 |
{ |
384 |
char typ[16], nam[MAXSTR]; |
385 |
int fn; |
386 |
/* modifier and type */ |
387 |
strcpy(typ, "EOF"); |
388 |
fgetword(nam, sizeof(nam), fin); |
389 |
fgetword(typ, sizeof(typ), fin); |
390 |
if ((fn = otype(typ)) < 0) { |
391 |
fprintf(stderr, "%s: (%s): unknown object type \"%s\"\n", |
392 |
progname, fname, typ); |
393 |
exit(1); |
394 |
} |
395 |
if (ismodifier(fn)) |
396 |
printf("\n%s %s ", nam, typ); |
397 |
else |
398 |
printf("\n%s %s ", newmod != NULL ? newmod : nam, |
399 |
invert ? ofun[tinvers[fn]].funame : typ); |
400 |
/* object name */ |
401 |
fgetword(nam, sizeof(nam), fin); |
402 |
if (idprefix == NULL || ismodifier(fn)) |
403 |
printf("%s\n", nam); |
404 |
else |
405 |
printf("%s.%s\n", idprefix, nam); |
406 |
/* transform arguments */ |
407 |
if ((*ofun[fn].funp)(fin) < 0) { |
408 |
fprintf(stderr, "%s: (%s): bad %s \"%s\"\n", |
409 |
progname, fname, ofun[fn].funame, nam); |
410 |
exit(1); |
411 |
} |
412 |
} |
413 |
|
414 |
|
415 |
o_default(fin) /* pass on arguments unchanged */ |
416 |
FILE *fin; |
417 |
{ |
418 |
register int i; |
419 |
FUNARGS fa; |
420 |
|
421 |
if (readfargs(&fa, fin) != 1) |
422 |
return(-1); |
423 |
/* string arguments */ |
424 |
printf("%d", fa.nsargs); |
425 |
for (i = 0; i < fa.nsargs; i++) { |
426 |
fputc(' ', stdout); |
427 |
fputword(fa.sarg[i], stdout); |
428 |
} |
429 |
printf("\n"); |
430 |
#ifdef IARGS |
431 |
/* integer arguments */ |
432 |
printf("%d", fa.niargs); |
433 |
for (i = 0; i < fa.niargs; i++) |
434 |
printf(" %d", fa.iarg[i]); |
435 |
printf("\n"); |
436 |
#else |
437 |
printf("0\n"); |
438 |
#endif |
439 |
/* float arguments */ |
440 |
printf("%d", fa.nfargs); |
441 |
for (i = 0; i < fa.nfargs; i++) |
442 |
printf(" %18.12g", fa.farg[i]); |
443 |
printf("\n"); |
444 |
freefargs(&fa); |
445 |
return(0); |
446 |
} |
447 |
|
448 |
|
449 |
addxform(fin) /* add xf arguments to strings */ |
450 |
FILE *fin; |
451 |
{ |
452 |
register int i; |
453 |
int resetarr = 0; |
454 |
FUNARGS fa; |
455 |
|
456 |
if (readfargs(&fa, fin) != 1) |
457 |
return(-1); |
458 |
/* string arguments */ |
459 |
if (xac > xfa && strcmp(xav[xfa], "-i")) |
460 |
resetarr = 2; |
461 |
printf("%d", fa.nsargs + resetarr + xac-xfa); |
462 |
for (i = 0; i < fa.nsargs; i++) { |
463 |
fputc(' ', stdout); |
464 |
fputword(fa.sarg[i], stdout); |
465 |
} |
466 |
if (resetarr) |
467 |
printf(" -i 1"); |
468 |
for (i = xfa; i < xac; i++) /* add xf arguments */ |
469 |
printf(" %s", xav[i]); |
470 |
printf("\n"); |
471 |
#ifdef IARGS |
472 |
/* integer arguments */ |
473 |
printf("%d", fa.niargs); |
474 |
for (i = 0; i < fa.niargs; i++) |
475 |
printf(" %d", fa.iarg[i]); |
476 |
printf("\n"); |
477 |
#else |
478 |
printf("0\n"); |
479 |
#endif |
480 |
/* float arguments */ |
481 |
printf("%d", fa.nfargs); |
482 |
for (i = 0; i < fa.nfargs; i++) |
483 |
printf(" %18.12g", fa.farg[i]); |
484 |
printf("\n"); |
485 |
freefargs(&fa); |
486 |
return(0); |
487 |
} |
488 |
|
489 |
|
490 |
alias(fin) /* transfer alias */ |
491 |
FILE *fin; |
492 |
{ |
493 |
char aliasnm[MAXSTR]; |
494 |
|
495 |
if (fgetword(aliasnm, MAXSTR, fin) == NULL) |
496 |
return(-1); |
497 |
printf("\t%s\n", aliasnm); |
498 |
return(0); |
499 |
} |
500 |
|
501 |
|
502 |
m_glow(fin) /* transform arguments for proximity light */ |
503 |
FILE *fin; |
504 |
{ |
505 |
FUNARGS fa; |
506 |
|
507 |
if (readfargs(&fa, fin) != 1) |
508 |
return(-1); |
509 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
510 |
return(-1); |
511 |
printf("0\n0\n4"); |
512 |
printf(" %18.12g %18.12g %18.12g", |
513 |
fa.farg[0], fa.farg[1], fa.farg[2]); |
514 |
printf(" %18.12g\n", fa.farg[3] * tot.sca); |
515 |
freefargs(&fa); |
516 |
return(0); |
517 |
} |
518 |
|
519 |
|
520 |
m_spot(fin) /* transform arguments for spotlight */ |
521 |
FILE *fin; |
522 |
{ |
523 |
FVECT v; |
524 |
FUNARGS fa; |
525 |
|
526 |
if (readfargs(&fa, fin) != 1) |
527 |
return(-1); |
528 |
if (fa.nsargs != 0 || fa.nfargs != 7) |
529 |
return(-1); |
530 |
printf("0\n0\n7"); |
531 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
532 |
fa.farg[0], fa.farg[1], fa.farg[2], fa.farg[3]); |
533 |
multv3(v, fa.farg+4, tot.xfm); |
534 |
printf("\t%18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
535 |
freefargs(&fa); |
536 |
return(0); |
537 |
} |
538 |
|
539 |
|
540 |
m_mist(fin) /* transform arguments for mist */ |
541 |
FILE *fin; |
542 |
{ |
543 |
FUNARGS fa; |
544 |
int i; |
545 |
|
546 |
if (readfargs(&fa, fin) != 1) |
547 |
return(-1); |
548 |
if (fa.nfargs > 7) |
549 |
return(-1); |
550 |
printf("%d", fa.nsargs); |
551 |
if (idprefix == NULL) |
552 |
for (i = 0; i < fa.nsargs; i++) |
553 |
printf(" %s", fa.sarg[i]); |
554 |
else |
555 |
for (i = 0; i < fa.nsargs; i++) { |
556 |
char sname[256], *sp; |
557 |
register char *cp1, *cp2 = sname; |
558 |
/* add idprefix */ |
559 |
for (sp = fa.sarg[i]; *sp; sp = cp1) { |
560 |
for (cp1 = idprefix; *cp1; ) |
561 |
*cp2++ = *cp1++; |
562 |
*cp2++ = '.'; |
563 |
for (cp1 = sp; *cp1 && |
564 |
(*cp2++ = *cp1++) != '>'; ) |
565 |
; |
566 |
} |
567 |
*cp2 = '\0'; |
568 |
printf(" %s", sname); |
569 |
} |
570 |
printf("\n0\n%d", fa.nfargs); |
571 |
if (fa.nfargs > 2) |
572 |
printf(" %12.6g %12.6g %12.6g", fa.farg[0]/tot.sca, |
573 |
fa.farg[1]/tot.sca, fa.farg[2]/tot.sca); |
574 |
for (i = 3; i < fa.nfargs; i++) |
575 |
printf(" %12.6g", fa.farg[i]); |
576 |
printf("\n"); |
577 |
freefargs(&fa); |
578 |
return(0); |
579 |
} |
580 |
|
581 |
|
582 |
m_dielectric(fin) /* transform arguments for dielectric */ |
583 |
FILE *fin; |
584 |
{ |
585 |
FUNARGS fa; |
586 |
|
587 |
if (readfargs(&fa, fin) != 1) |
588 |
return(-1); |
589 |
if (fa.nsargs != 0 || fa.nfargs != 5) |
590 |
return(-1); |
591 |
printf("0\n0\n5"); |
592 |
printf(" %12.6g %12.6g %12.6g", |
593 |
pow(fa.farg[0], 1.0/tot.sca), |
594 |
pow(fa.farg[1], 1.0/tot.sca), |
595 |
pow(fa.farg[2], 1.0/tot.sca)); |
596 |
printf(" %12.6g %12.6g\n", fa.farg[3], fa.farg[4]); |
597 |
freefargs(&fa); |
598 |
return(0); |
599 |
} |
600 |
|
601 |
|
602 |
m_interface(fin) /* transform arguments for interface */ |
603 |
FILE *fin; |
604 |
{ |
605 |
FUNARGS fa; |
606 |
|
607 |
if (readfargs(&fa, fin) != 1) |
608 |
return(-1); |
609 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
610 |
return(-1); |
611 |
printf("0\n0\n8\n"); |
612 |
printf("%12.6g %12.6g %12.6g", |
613 |
pow(fa.farg[0], 1.0/tot.sca), |
614 |
pow(fa.farg[1], 1.0/tot.sca), |
615 |
pow(fa.farg[2], 1.0/tot.sca)); |
616 |
printf(" %12.6g\n", fa.farg[3]); |
617 |
printf("%12.6g %12.6g %12.6g", |
618 |
pow(fa.farg[4], 1.0/tot.sca), |
619 |
pow(fa.farg[5], 1.0/tot.sca), |
620 |
pow(fa.farg[6], 1.0/tot.sca)); |
621 |
printf(" %12.6g\n", fa.farg[7]); |
622 |
freefargs(&fa); |
623 |
return(0); |
624 |
} |
625 |
|
626 |
|
627 |
text(fin) /* transform text arguments */ |
628 |
FILE *fin; |
629 |
{ |
630 |
int i; |
631 |
FVECT v; |
632 |
FUNARGS fa; |
633 |
|
634 |
if (readfargs(&fa, fin) != 1) |
635 |
return(-1); |
636 |
if (fa.nfargs < 9) |
637 |
return(-1); |
638 |
/* string arguments */ |
639 |
printf("%d", fa.nsargs); |
640 |
for (i = 0; i < fa.nsargs; i++) { |
641 |
fputc(' ', stdout); |
642 |
fputword(fa.sarg[i], stdout); |
643 |
} |
644 |
printf("\n0\n%d\n", fa.nfargs); |
645 |
/* anchor point */ |
646 |
multp3(v, fa.farg, tot.xfm); |
647 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
648 |
/* right vector */ |
649 |
multv3(v, fa.farg+3, tot.xfm); |
650 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
651 |
/* down vector */ |
652 |
multv3(v, fa.farg+6, tot.xfm); |
653 |
printf(" %18.12g %18.12g %18.12g", v[0], v[1], v[2]); |
654 |
/* remaining arguments */ |
655 |
for (i = 9; i < fa.nfargs; i++) { |
656 |
if (i%3 == 0) |
657 |
putchar('\n'); |
658 |
printf(" %18.12g", fa.farg[i]); |
659 |
} |
660 |
putchar('\n'); |
661 |
freefargs(&fa); |
662 |
return(0); |
663 |
} |
664 |
|
665 |
|
666 |
o_source(fin) /* transform source arguments */ |
667 |
FILE *fin; |
668 |
{ |
669 |
FVECT dv; |
670 |
FUNARGS fa; |
671 |
|
672 |
if (readfargs(&fa, fin) != 1) |
673 |
return(-1); |
674 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
675 |
return(-1); |
676 |
/* transform direction vector */ |
677 |
multv3(dv, fa.farg, tot.xfm); |
678 |
/* output */ |
679 |
printf("0\n0\n4"); |
680 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
681 |
dv[0], dv[1], dv[2], fa.farg[3]); |
682 |
freefargs(&fa); |
683 |
return(0); |
684 |
} |
685 |
|
686 |
|
687 |
o_sphere(fin) /* transform sphere arguments */ |
688 |
FILE *fin; |
689 |
{ |
690 |
FVECT cent; |
691 |
double rad; |
692 |
FUNARGS fa; |
693 |
|
694 |
if (readfargs(&fa, fin) != 1) |
695 |
return(-1); |
696 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
697 |
return(-1); |
698 |
|
699 |
multp3(cent, fa.farg, tot.xfm); /* transform center */ |
700 |
|
701 |
rad = fa.farg[3] * tot.sca; /* scale radius */ |
702 |
|
703 |
printf("0\n0\n4"); |
704 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
705 |
cent[0], cent[1], cent[2], rad); |
706 |
freefargs(&fa); |
707 |
return(0); |
708 |
} |
709 |
|
710 |
|
711 |
o_face(fin) /* transform face arguments */ |
712 |
FILE *fin; |
713 |
{ |
714 |
FVECT p; |
715 |
register int i; |
716 |
FUNARGS fa; |
717 |
|
718 |
if (readfargs(&fa, fin) != 1) |
719 |
return(-1); |
720 |
if (fa.nsargs != 0 || fa.nfargs % 3) |
721 |
return(-1); |
722 |
|
723 |
printf("0\n0\n%d\n", fa.nfargs); |
724 |
|
725 |
for (i = 0; i < fa.nfargs; i += 3) { |
726 |
if (reverse) |
727 |
multp3(p, fa.farg+(fa.nfargs-i-3), tot.xfm); |
728 |
else |
729 |
multp3(p, fa.farg+i, tot.xfm); |
730 |
printf(" %18.12g %18.12g %18.12g\n", p[0], p[1], p[2]); |
731 |
} |
732 |
freefargs(&fa); |
733 |
return(0); |
734 |
} |
735 |
|
736 |
|
737 |
o_cone(fin) /* transform cone and cup arguments */ |
738 |
FILE *fin; |
739 |
{ |
740 |
FVECT p0, p1; |
741 |
double r0, r1; |
742 |
FUNARGS fa; |
743 |
|
744 |
if (readfargs(&fa, fin) != 1) |
745 |
return(-1); |
746 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
747 |
return(-1); |
748 |
|
749 |
printf("0\n0\n8\n"); |
750 |
|
751 |
multp3(p0, fa.farg, tot.xfm); |
752 |
multp3(p1, fa.farg+3, tot.xfm); |
753 |
r0 = fa.farg[6] * tot.sca; |
754 |
r1 = fa.farg[7] * tot.sca; |
755 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
756 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
757 |
printf(" %18.12g %18.12g\n", r0, r1); |
758 |
|
759 |
freefargs(&fa); |
760 |
return(0); |
761 |
} |
762 |
|
763 |
|
764 |
o_cylinder(fin) /* transform cylinder and tube arguments */ |
765 |
FILE *fin; |
766 |
{ |
767 |
FVECT p0, p1; |
768 |
double rad; |
769 |
FUNARGS fa; |
770 |
|
771 |
if (readfargs(&fa, fin) != 1) |
772 |
return(-1); |
773 |
if (fa.nsargs != 0 || fa.nfargs != 7) |
774 |
return(-1); |
775 |
|
776 |
printf("0\n0\n7\n"); |
777 |
|
778 |
multp3(p0, fa.farg, tot.xfm); |
779 |
multp3(p1, fa.farg+3, tot.xfm); |
780 |
rad = fa.farg[6] * tot.sca; |
781 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
782 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
783 |
printf(" %18.12g\n", rad); |
784 |
freefargs(&fa); |
785 |
return(0); |
786 |
} |
787 |
|
788 |
|
789 |
o_ring(fin) /* transform ring arguments */ |
790 |
FILE *fin; |
791 |
{ |
792 |
FVECT p0, pd; |
793 |
double r0, r1; |
794 |
FUNARGS fa; |
795 |
|
796 |
if (readfargs(&fa, fin) != 1) |
797 |
return(-1); |
798 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
799 |
return(-1); |
800 |
|
801 |
printf("0\n0\n8\n"); |
802 |
|
803 |
multp3(p0, fa.farg, tot.xfm); |
804 |
multv3(pd, fa.farg+3, tot.xfm); |
805 |
if (invert) { |
806 |
pd[0] = -pd[0]; |
807 |
pd[1] = -pd[1]; |
808 |
pd[2] = -pd[2]; |
809 |
} |
810 |
r0 = fa.farg[6] * tot.sca; |
811 |
r1 = fa.farg[7] * tot.sca; |
812 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
813 |
printf(" %18.12g %18.12g %18.12g\n", pd[0], pd[1], pd[2]); |
814 |
printf(" %18.12g %18.12g\n", r0, r1); |
815 |
freefargs(&fa); |
816 |
return(0); |
817 |
} |
818 |
|
819 |
|
820 |
initotypes() /* initialize ofun[] array */ |
821 |
{ |
822 |
register int i; |
823 |
|
824 |
if (ofun[OBJ_SOURCE].funp == o_source) |
825 |
return; /* done already */ |
826 |
/* functions get new transform */ |
827 |
for (i = 0; i < NUMOTYPE; i++) |
828 |
if (hasfunc(i)) |
829 |
ofun[i].funp = addxform; |
830 |
/* special cases */ |
831 |
ofun[OBJ_SOURCE].funp = o_source; |
832 |
ofun[OBJ_SPHERE].funp = |
833 |
ofun[OBJ_BUBBLE].funp = o_sphere; |
834 |
ofun[OBJ_FACE].funp = o_face; |
835 |
ofun[OBJ_CONE].funp = |
836 |
ofun[OBJ_CUP].funp = o_cone; |
837 |
ofun[OBJ_CYLINDER].funp = |
838 |
ofun[OBJ_TUBE].funp = o_cylinder; |
839 |
ofun[OBJ_RING].funp = o_ring; |
840 |
ofun[OBJ_INSTANCE].funp = addxform; |
841 |
ofun[MAT_GLOW].funp = m_glow; |
842 |
ofun[MAT_SPOT].funp = m_spot; |
843 |
ofun[MAT_DIELECTRIC].funp = m_dielectric; |
844 |
ofun[MAT_INTERFACE].funp = m_interface; |
845 |
ofun[MAT_MIST].funp = m_mist; |
846 |
ofun[PAT_CTEXT].funp = |
847 |
ofun[PAT_BTEXT].funp = |
848 |
ofun[MIX_TEXT].funp = text; |
849 |
ofun[MOD_ALIAS].funp = alias; |
850 |
/* surface inverses */ |
851 |
tinvers[OBJ_FACE] = OBJ_FACE; |
852 |
tinvers[OBJ_SOURCE] = OBJ_SOURCE; |
853 |
tinvers[OBJ_CONE] = OBJ_CUP; |
854 |
tinvers[OBJ_CUP] = OBJ_CONE; |
855 |
tinvers[OBJ_SPHERE] = OBJ_BUBBLE; |
856 |
tinvers[OBJ_BUBBLE] = OBJ_SPHERE; |
857 |
tinvers[OBJ_RING] = OBJ_RING; |
858 |
tinvers[OBJ_CYLINDER] = OBJ_TUBE; |
859 |
tinvers[OBJ_TUBE] = OBJ_CYLINDER; |
860 |
tinvers[OBJ_INSTANCE] = OBJ_INSTANCE; /* oh, well */ |
861 |
} |
862 |
|
863 |
|
864 |
#ifdef OLDXFORM |
865 |
openmain(fname) |
866 |
char *fname; |
867 |
{ |
868 |
if (fname == NULL) { |
869 |
strcpy(mainfn, "standard input"); |
870 |
mainfp = stdin; |
871 |
return; |
872 |
} |
873 |
if (mainfp != NULL) { |
874 |
if (!strcmp(fname, mainfn)) { |
875 |
rewind(mainfp); |
876 |
return; |
877 |
} |
878 |
fclose(mainfp); |
879 |
} |
880 |
if ((mainfp = fopen(fname, "r")) == NULL) { |
881 |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
882 |
progname, fname); |
883 |
exit(1); |
884 |
} |
885 |
strcpy(mainfn, fname); |
886 |
} |
887 |
#else |
888 |
openmain(iname) /* open input, changing directory for file */ |
889 |
char *iname; |
890 |
{ |
891 |
static char origdir[MAXPATH]; |
892 |
static char curfn[MAXPATH]; |
893 |
static int diffdir; |
894 |
register char *fpath; |
895 |
|
896 |
if (iname == NULL) { /* standard input */ |
897 |
if (mainfp == NULL) { |
898 |
register int c; |
899 |
strcpy(mainfn, "standard input"); |
900 |
if (nrept <= 1) { |
901 |
mainfp = stdin; |
902 |
return; /* just read once */ |
903 |
} |
904 |
/* else copy */ |
905 |
if ((mainfp = tmpfile()) == NULL) { |
906 |
fprintf(stderr, |
907 |
"%s: cannot create temporary file\n", |
908 |
progname); |
909 |
exit(1); |
910 |
} |
911 |
while ((c = getc(stdin)) != EOF) |
912 |
putc(c, mainfp); |
913 |
} |
914 |
rewind(mainfp); /* rewind copy */ |
915 |
return; |
916 |
} |
917 |
if (mainfp == NULL) { /* first call, initialize */ |
918 |
getwd(origdir); |
919 |
} else if (!strcmp(iname, curfn)) { /* just need to rewind? */ |
920 |
rewind(mainfp); |
921 |
return; |
922 |
} else { /* else close old stream */ |
923 |
fclose(mainfp); |
924 |
mainfp = NULL; |
925 |
if (diffdir) { /* return to our directory */ |
926 |
chdir(origdir); |
927 |
diffdir = 0; |
928 |
} |
929 |
} |
930 |
strcpy(curfn, iname); /* remember input name */ |
931 |
/* get full path for file */ |
932 |
if ((fpath = getpath(iname, getrlibpath(), R_OK)) == NULL) { |
933 |
fprintf(stderr, "%s: cannot find file \"%s\"\n", |
934 |
progname, iname); |
935 |
exit(1); |
936 |
} |
937 |
if (fpath[0] == '.' && ISDIRSEP(fpath[1])) /* remove leading ./ */ |
938 |
fpath += 2; |
939 |
/* record path name */ |
940 |
strcpy(mainfn, fpath); |
941 |
if (expand) { /* change to local directory */ |
942 |
register char *cp = fpath + strlen(fpath); /* get dir. */ |
943 |
while (cp > fpath) { |
944 |
cp--; |
945 |
if (ISDIRSEP(*cp)) { |
946 |
if (cp == fpath) |
947 |
cp++; /* root special case */ |
948 |
break; |
949 |
} |
950 |
} |
951 |
*cp = '\0'; |
952 |
if (fpath[0]) { /* change to new directory? */ |
953 |
if (chdir(fpath) < 0) { |
954 |
fprintf(stderr, |
955 |
"%s: cannot change directory to \"%s\"\n", |
956 |
progname, fpath); |
957 |
exit(1); |
958 |
} |
959 |
diffdir++; |
960 |
} |
961 |
/* get final path component */ |
962 |
for (fpath = iname+strlen(iname); |
963 |
fpath > iname && !ISDIRSEP(fpath[-1]); fpath--) |
964 |
; |
965 |
} |
966 |
/* finally, open the file */ |
967 |
if ((mainfp = fopen(fpath, "r")) == NULL) { |
968 |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
969 |
progname, mainfn); |
970 |
exit(1); |
971 |
} |
972 |
} |
973 |
#endif |