| 1 |
/* Copyright (c) 1986 Regents of the University of California */ |
| 2 |
|
| 3 |
#ifndef lint |
| 4 |
static char SCCSid[] = "$SunId$ LBL"; |
| 5 |
#endif |
| 6 |
|
| 7 |
/* |
| 8 |
* xform.c - program to transform object files. |
| 9 |
* Transformations must preserve aspect ratio. |
| 10 |
* |
| 11 |
* 10/19/85 |
| 12 |
* 11/6/86 Finally added error checking! |
| 13 |
*/ |
| 14 |
|
| 15 |
#include <stdio.h> |
| 16 |
|
| 17 |
#include <ctype.h> |
| 18 |
|
| 19 |
|
| 20 |
typedef struct { |
| 21 |
char *funame; /* function name */ |
| 22 |
int (*funp)(); /* pointer to function */ |
| 23 |
} FUN; |
| 24 |
|
| 25 |
int xac; /* global xform argument count */ |
| 26 |
char **xav; /* global xform argument pointer */ |
| 27 |
int xfa; /* start of xf arguments */ |
| 28 |
|
| 29 |
double totxform[4][4]; /* total transformation matrix */ |
| 30 |
double totscale; /* total scale factor */ |
| 31 |
int reverse; /* boolean true if scene inverted */ |
| 32 |
|
| 33 |
int expand = 0; /* boolean true to expand commands */ |
| 34 |
|
| 35 |
char *idprefix = NULL; /* prefix for object identifiers */ |
| 36 |
|
| 37 |
extern int o_source(); |
| 38 |
extern int o_sphere(); |
| 39 |
extern int o_face(); |
| 40 |
extern int o_cone(); |
| 41 |
extern int o_cylinder(); |
| 42 |
extern int o_ring(); |
| 43 |
extern int m_glow(); |
| 44 |
extern int m_spot(); |
| 45 |
extern int m_dielectric(); |
| 46 |
extern int m_interface(); |
| 47 |
extern int text(); |
| 48 |
extern int alias(); |
| 49 |
extern int passargs(); |
| 50 |
extern int addxform(); |
| 51 |
|
| 52 |
FUN ofun[] = { |
| 53 |
{ "source", o_source }, |
| 54 |
{ "sphere", o_sphere }, |
| 55 |
{ "bubble", o_sphere }, |
| 56 |
{ "polygon", o_face }, |
| 57 |
{ "cone", o_cone }, |
| 58 |
{ "cup", o_cone }, |
| 59 |
{ "cylinder", o_cylinder }, |
| 60 |
{ "tube", o_cylinder }, |
| 61 |
{ "ring", o_ring }, |
| 62 |
{ "instance", addxform }, |
| 63 |
{ "alias", alias }, |
| 64 |
{ "antimatter", passargs }, |
| 65 |
{ "glow", m_glow }, |
| 66 |
{ "spotlight", m_spot }, |
| 67 |
{ "dielectric", m_dielectric }, |
| 68 |
{ "interface", m_interface }, |
| 69 |
{ "colortext", text }, |
| 70 |
{ "brighttext", text }, |
| 71 |
{ "texfunc", addxform }, |
| 72 |
{ "texdata", addxform }, |
| 73 |
{ "colorfunc", addxform }, |
| 74 |
{ "brightfunc", addxform }, |
| 75 |
{ "colorpict", addxform }, |
| 76 |
{ "colordata", addxform }, |
| 77 |
{ "brightdata", addxform }, |
| 78 |
{ "mixfunc", addxform }, |
| 79 |
{ "mixdata", addxform }, |
| 80 |
{ "mixtext", text }, |
| 81 |
{ "light", passargs }, |
| 82 |
{ "illum", passargs }, |
| 83 |
{ "plastic", passargs }, |
| 84 |
{ "metal", passargs }, |
| 85 |
{ "trans", passargs }, |
| 86 |
{ "glass", passargs }, |
| 87 |
{ 0 } /* terminator */ |
| 88 |
}; |
| 89 |
|
| 90 |
#define issurface(t) ((t)<=9) |
| 91 |
|
| 92 |
typedef struct { |
| 93 |
short nsargs; /* # of string arguments */ |
| 94 |
char **sarg; /* string arguments */ |
| 95 |
short niargs; /* # of integer arguments */ |
| 96 |
int *iarg; /* integer arguments */ |
| 97 |
short nfargs; /* # of float arguments */ |
| 98 |
double *farg; /* float arguments */ |
| 99 |
} FUNARGS; |
| 100 |
|
| 101 |
#define MAXSTR 512 /* maximum string length */ |
| 102 |
|
| 103 |
FUNARGS *getfargs(); |
| 104 |
char *malloc(); |
| 105 |
|
| 106 |
#define progname (xav[0]) |
| 107 |
|
| 108 |
|
| 109 |
main(argc, argv) /* get transform options and transform file */ |
| 110 |
int argc; |
| 111 |
char *argv[]; |
| 112 |
{ |
| 113 |
FILE *fopen(); |
| 114 |
FILE *fp; |
| 115 |
int a; |
| 116 |
/* check for array */ |
| 117 |
for (a = 1; a < argc; a++) |
| 118 |
if (!strcmp(argv[a], "-a")) |
| 119 |
return(doarray(argc, argv, a)); |
| 120 |
|
| 121 |
for (a = 1; a < argc; a++) { |
| 122 |
if (argv[a][0] == '-') |
| 123 |
switch (argv[a][1]) { |
| 124 |
case 'n': |
| 125 |
if (argv[a][2] || a+1 >= argc) |
| 126 |
break; |
| 127 |
idprefix = argv[++a]; |
| 128 |
continue; |
| 129 |
case 'e': |
| 130 |
if (argv[a][2]) |
| 131 |
break; |
| 132 |
expand = 1; |
| 133 |
continue; |
| 134 |
} |
| 135 |
break; |
| 136 |
} |
| 137 |
|
| 138 |
xav = argv; |
| 139 |
xfa = a; |
| 140 |
|
| 141 |
totscale = 1.0; |
| 142 |
setident4(totxform); |
| 143 |
|
| 144 |
a += xf(totxform, &totscale, argc-a, argv+a); |
| 145 |
|
| 146 |
if (reverse = totscale < 0.0) |
| 147 |
totscale = -totscale; |
| 148 |
|
| 149 |
if (a < argc && argv[a][0] == '-') { |
| 150 |
fprintf(stderr, "%s: command line error at '%s'\n", |
| 151 |
argv[0], argv[a]); |
| 152 |
exit(1); |
| 153 |
} |
| 154 |
xac = a; |
| 155 |
|
| 156 |
putchar('#'); /* simple header */ |
| 157 |
for (a = 0; a < xac; a++) |
| 158 |
printf(" %s", xav[a]); |
| 159 |
putchar('\n'); |
| 160 |
|
| 161 |
if (a == argc) |
| 162 |
xform("standard input", stdin); |
| 163 |
else |
| 164 |
for ( ; a < argc; a++) { |
| 165 |
if ((fp = fopen(argv[a], "r")) == NULL) { |
| 166 |
fprintf(stderr, "%s: cannot open \"%s\"\n", |
| 167 |
progname, argv[a]); |
| 168 |
exit(1); |
| 169 |
} |
| 170 |
xform(argv[a], fp); |
| 171 |
fclose(fp); |
| 172 |
} |
| 173 |
|
| 174 |
return(0); |
| 175 |
} |
| 176 |
|
| 177 |
|
| 178 |
doarray(ac, av, ai) /* make array */ |
| 179 |
char **av; |
| 180 |
int ac, ai; |
| 181 |
{ |
| 182 |
char *newav[256], **avp; |
| 183 |
char newid[128], repts[32]; |
| 184 |
char *oldid = NULL; |
| 185 |
int i, err; |
| 186 |
|
| 187 |
avp = newav+2; |
| 188 |
avp[0] = av[0]; |
| 189 |
for (i = 1; i < ac; i++) |
| 190 |
if (!strcmp(av[i-1], "-n")) { |
| 191 |
oldid = av[i]; |
| 192 |
avp[i] = newid; |
| 193 |
} else |
| 194 |
avp[i] = av[i]; |
| 195 |
avp[ai] = "-i"; |
| 196 |
avp[ai+1] = repts; |
| 197 |
avp[i] = NULL; |
| 198 |
if (oldid == NULL) { |
| 199 |
newav[0] = av[0]; |
| 200 |
newav[1] = "-n"; |
| 201 |
newav[2] = newid; |
| 202 |
avp = newav; |
| 203 |
ac += 2; |
| 204 |
} |
| 205 |
err = 0; |
| 206 |
for (i = 0; i < atoi(av[ai+1]); i++) { |
| 207 |
if (oldid == NULL) |
| 208 |
sprintf(newid, "a%d", i); |
| 209 |
else |
| 210 |
sprintf(newid, "%s.%d", oldid, i); |
| 211 |
sprintf(repts, "%d", i); |
| 212 |
err |= main(ac, avp); |
| 213 |
} |
| 214 |
return(err); |
| 215 |
} |
| 216 |
|
| 217 |
|
| 218 |
xform(name, fin) /* transform stream by totxform */ |
| 219 |
char *name; |
| 220 |
register FILE *fin; |
| 221 |
{ |
| 222 |
register int c; |
| 223 |
|
| 224 |
while ((c = getc(fin)) != EOF) { |
| 225 |
if (isspace(c)) /* blank */ |
| 226 |
continue; |
| 227 |
if (c == '#') { /* comment */ |
| 228 |
putchar(c); |
| 229 |
do { |
| 230 |
if ((c = getc(fin)) == EOF) |
| 231 |
return; |
| 232 |
putchar(c); |
| 233 |
} while (c != '\n'); |
| 234 |
} else if (c == '!') { /* command */ |
| 235 |
ungetc(c, fin); |
| 236 |
xfcomm(name, fin); |
| 237 |
} else { /* object */ |
| 238 |
ungetc(c, fin); |
| 239 |
xfobject(name, fin); |
| 240 |
} |
| 241 |
} |
| 242 |
} |
| 243 |
|
| 244 |
|
| 245 |
xfcomm(fname, fin) /* transform a command */ |
| 246 |
FILE *fin; |
| 247 |
{ |
| 248 |
FILE *popen(); |
| 249 |
char *fgetline(); |
| 250 |
FILE *pin; |
| 251 |
char buf[512]; |
| 252 |
int i; |
| 253 |
|
| 254 |
fgetline(buf, sizeof(buf), fin); |
| 255 |
if (expand) { |
| 256 |
if ((pin = popen(buf+1, "r")) == NULL) { |
| 257 |
fprintf(stderr, "%s: (%s): cannot execute \"%s\"\n", |
| 258 |
progname, fname, buf); |
| 259 |
exit(1); |
| 260 |
} |
| 261 |
xform(buf, pin); |
| 262 |
pclose(pin); |
| 263 |
} else { |
| 264 |
printf("\n%s | %s -e", buf, xav[0]); |
| 265 |
for (i = 1; i < xac; i++) |
| 266 |
printf(" %s", xav[i]); |
| 267 |
putchar('\n'); |
| 268 |
} |
| 269 |
} |
| 270 |
|
| 271 |
|
| 272 |
xfobject(fname, fin) /* transform an object */ |
| 273 |
char *fname; |
| 274 |
FILE *fin; |
| 275 |
{ |
| 276 |
char stmp[MAXSTR]; |
| 277 |
int fn; |
| 278 |
|
| 279 |
fscanf(fin, "%s", stmp); /* modifier */ |
| 280 |
printf("\n%s ", stmp); |
| 281 |
fscanf(fin, "%s", stmp); /* object type */ |
| 282 |
if ((fn = otype(stmp)) < 0) { |
| 283 |
fprintf(stderr, "%s: (%s): unknown object type \"%s\"\n", |
| 284 |
progname, fname, stmp); |
| 285 |
exit(1); |
| 286 |
} |
| 287 |
printf("%s ", stmp); |
| 288 |
fscanf(fin, "%s", stmp); /* object name */ |
| 289 |
if (idprefix != NULL && issurface(fn)) |
| 290 |
printf("%s.%s\n", idprefix, stmp); |
| 291 |
else |
| 292 |
printf("%s\n", stmp); |
| 293 |
/* transform arguments */ |
| 294 |
if ((*ofun[fn].funp)(fin) < 0) { |
| 295 |
fprintf(stderr, "%s: (%s): bad %s \"%s\"\n", |
| 296 |
progname, fname, ofun[fn].funame, stmp); |
| 297 |
exit(1); |
| 298 |
} |
| 299 |
} |
| 300 |
|
| 301 |
|
| 302 |
passargs(fin) /* pass on arguments unchanged */ |
| 303 |
FILE *fin; |
| 304 |
{ |
| 305 |
register int i; |
| 306 |
register FUNARGS *fa; |
| 307 |
|
| 308 |
if ((fa = getfargs(fin)) == NULL) |
| 309 |
return(-1); |
| 310 |
/* string arguments */ |
| 311 |
printf("%d", fa->nsargs); |
| 312 |
for (i = 0; i < fa->nsargs; i++) |
| 313 |
printf(" %s", fa->sarg[i]); |
| 314 |
printf("\n"); |
| 315 |
/* integer arguments */ |
| 316 |
printf("%d", fa->niargs); |
| 317 |
for (i = 0; i < fa->niargs; i++) |
| 318 |
printf(" %d", fa->iarg[i]); |
| 319 |
printf("\n"); |
| 320 |
/* float arguments */ |
| 321 |
printf("%d", fa->nfargs); |
| 322 |
for (i = 0; i < fa->nfargs; i++) |
| 323 |
printf(" %18.12g", fa->farg[i]); |
| 324 |
printf("\n"); |
| 325 |
freefargs(fa); |
| 326 |
return(0); |
| 327 |
} |
| 328 |
|
| 329 |
|
| 330 |
addxform(fin) /* add xf arguments to strings */ |
| 331 |
FILE *fin; |
| 332 |
{ |
| 333 |
register int i; |
| 334 |
register FUNARGS *fa; |
| 335 |
|
| 336 |
if ((fa = getfargs(fin)) == NULL) |
| 337 |
return(-1); |
| 338 |
/* string arguments */ |
| 339 |
printf("%d", fa->nsargs + xac-xfa); |
| 340 |
for (i = 0; i < fa->nsargs; i++) |
| 341 |
printf(" %s", fa->sarg[i]); |
| 342 |
for (i = xfa; i < xac; i++) /* add xf arguments */ |
| 343 |
printf(" %s", xav[i]); |
| 344 |
printf("\n"); |
| 345 |
/* integer arguments */ |
| 346 |
printf("%d", fa->niargs); |
| 347 |
for (i = 0; i < fa->niargs; i++) |
| 348 |
printf(" %d", fa->iarg[i]); |
| 349 |
printf("\n"); |
| 350 |
/* float arguments */ |
| 351 |
printf("%d", fa->nfargs); |
| 352 |
for (i = 0; i < fa->nfargs; i++) |
| 353 |
printf(" %18.12g", fa->farg[i]); |
| 354 |
printf("\n"); |
| 355 |
freefargs(fa); |
| 356 |
return(0); |
| 357 |
} |
| 358 |
|
| 359 |
|
| 360 |
int |
| 361 |
otype(ofname) /* get object function number from its name */ |
| 362 |
register char *ofname; |
| 363 |
{ |
| 364 |
register int i; |
| 365 |
|
| 366 |
for (i = 0; ofun[i].funame != NULL; i++) |
| 367 |
if (!strcmp(ofun[i].funame, ofname)) |
| 368 |
return(i); |
| 369 |
|
| 370 |
return(-1); /* not found */ |
| 371 |
} |
| 372 |
|
| 373 |
|
| 374 |
alias(fin) /* transfer alias */ |
| 375 |
FILE *fin; |
| 376 |
{ |
| 377 |
char alias[MAXSTR]; |
| 378 |
|
| 379 |
if (fscanf(fin, "%s", alias) != 1) |
| 380 |
return(-1); |
| 381 |
printf("\t%s\n", alias); |
| 382 |
return(0); |
| 383 |
} |
| 384 |
|
| 385 |
|
| 386 |
m_glow(fin) /* transform arguments for proximity light */ |
| 387 |
FILE *fin; |
| 388 |
{ |
| 389 |
register FUNARGS *fa; |
| 390 |
|
| 391 |
if ((fa = getfargs(fin)) == NULL) |
| 392 |
return(-1); |
| 393 |
if (fa->nsargs != 0 || fa->niargs != 0 || fa->nfargs != 4) |
| 394 |
return(-1); |
| 395 |
printf("0\n0\n4"); |
| 396 |
printf(" %18.12g %18.12g %18.12g", |
| 397 |
fa->farg[0], fa->farg[1], fa->farg[2]); |
| 398 |
printf(" %18.12g\n", fa->farg[3] * totscale); |
| 399 |
freefargs(fa); |
| 400 |
return(0); |
| 401 |
} |
| 402 |
|
| 403 |
|
| 404 |
m_spot(fin) /* transform arguments for spotlight */ |
| 405 |
FILE *fin; |
| 406 |
{ |
| 407 |
double v[3]; |
| 408 |
register FUNARGS *fa; |
| 409 |
|
| 410 |
if ((fa = getfargs(fin)) == NULL) |
| 411 |
return(-1); |
| 412 |
if (fa->nsargs != 0 || fa->niargs != 0 || fa->nfargs != 7) |
| 413 |
return(-1); |
| 414 |
printf("0\n0\n7"); |
| 415 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
| 416 |
fa->farg[0], fa->farg[1], fa->farg[2], fa->farg[3]); |
| 417 |
multv3(v, fa->farg+4, totxform); |
| 418 |
printf("\t%18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
| 419 |
freefargs(fa); |
| 420 |
return(0); |
| 421 |
} |
| 422 |
|
| 423 |
|
| 424 |
m_dielectric(fin) /* transform arguments for dielectric */ |
| 425 |
FILE *fin; |
| 426 |
{ |
| 427 |
double pow(); |
| 428 |
register FUNARGS *fa; |
| 429 |
|
| 430 |
if ((fa = getfargs(fin)) == NULL) |
| 431 |
return(-1); |
| 432 |
if (fa->nsargs != 0 || fa->niargs != 0 || fa->nfargs != 5) |
| 433 |
return(-1); |
| 434 |
printf("0\n0\n5"); |
| 435 |
printf(" %18.12g %18.12g %18.12g", |
| 436 |
pow(fa->farg[0], 1.0/totscale), |
| 437 |
pow(fa->farg[1], 1.0/totscale), |
| 438 |
pow(fa->farg[2], 1.0/totscale)); |
| 439 |
printf(" %18.12g %18.12g\n", fa->farg[3], fa->farg[4]); |
| 440 |
freefargs(fa); |
| 441 |
return(0); |
| 442 |
} |
| 443 |
|
| 444 |
|
| 445 |
m_interface(fin) /* transform arguments for interface */ |
| 446 |
FILE *fin; |
| 447 |
{ |
| 448 |
double pow(); |
| 449 |
register FUNARGS *fa; |
| 450 |
|
| 451 |
if ((fa = getfargs(fin)) == NULL) |
| 452 |
return(-1); |
| 453 |
if (fa->nsargs != 0 || fa->niargs != 0 || fa->nfargs != 8) |
| 454 |
return(-1); |
| 455 |
printf("0\n0\n8\n"); |
| 456 |
printf("%18.12g %18.12g %18.12g", |
| 457 |
pow(fa->farg[0], 1.0/totscale), |
| 458 |
pow(fa->farg[1], 1.0/totscale), |
| 459 |
pow(fa->farg[2], 1.0/totscale)); |
| 460 |
printf(" %18.12g\n", fa->farg[3]); |
| 461 |
printf("%18.12g %18.12g %18.12g", |
| 462 |
pow(fa->farg[4], 1.0/totscale), |
| 463 |
pow(fa->farg[5], 1.0/totscale), |
| 464 |
pow(fa->farg[6], 1.0/totscale)); |
| 465 |
printf(" %18.12g\n", fa->farg[7]); |
| 466 |
freefargs(fa); |
| 467 |
return(0); |
| 468 |
} |
| 469 |
|
| 470 |
|
| 471 |
text(fin) /* transform text arguments */ |
| 472 |
FILE *fin; |
| 473 |
{ |
| 474 |
int i; |
| 475 |
double v[3]; |
| 476 |
register FUNARGS *fa; |
| 477 |
|
| 478 |
if ((fa = getfargs(fin)) == NULL) |
| 479 |
return(-1); |
| 480 |
if (fa->niargs != 0 || (fa->nfargs != 9 && |
| 481 |
fa->nfargs != 11 && fa->nfargs != 15)) |
| 482 |
return(-1); |
| 483 |
/* string arguments */ |
| 484 |
printf("%d", fa->nsargs); |
| 485 |
for (i = 0; i < fa->nsargs; i++) |
| 486 |
printf(" %s", fa->sarg[i]); |
| 487 |
printf("\n0\n%d\n", fa->nfargs); |
| 488 |
/* anchor point */ |
| 489 |
multp3(v, fa->farg, totxform); |
| 490 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
| 491 |
/* right vector */ |
| 492 |
multv3(v, fa->farg+3, totxform); |
| 493 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
| 494 |
/* down vector */ |
| 495 |
multv3(v, fa->farg+6, totxform); |
| 496 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
| 497 |
/* forground and background */ |
| 498 |
if (fa->nfargs == 11) |
| 499 |
printf(" %18.12g %18.12g\n", fa->farg[9], fa->farg[10]); |
| 500 |
else if (fa->nfargs == 15) { |
| 501 |
printf(" %18.12g %18.12g %18.12g\n", |
| 502 |
fa->farg[9], fa->farg[10], fa->farg[11]); |
| 503 |
printf(" %18.12g %18.12g %18.12g\n", |
| 504 |
fa->farg[12], fa->farg[13], fa->farg[14]); |
| 505 |
} |
| 506 |
freefargs(fa); |
| 507 |
return(0); |
| 508 |
} |
| 509 |
|
| 510 |
|
| 511 |
o_source(fin) /* transform source arguments */ |
| 512 |
FILE *fin; |
| 513 |
{ |
| 514 |
double dv[3]; |
| 515 |
register FUNARGS *fa; |
| 516 |
|
| 517 |
if ((fa = getfargs(fin)) == NULL) |
| 518 |
return(-1); |
| 519 |
if (fa->nsargs != 0 || fa->niargs != 0 || fa->nfargs != 4) |
| 520 |
return(-1); |
| 521 |
/* transform direction vector */ |
| 522 |
multv3(dv, fa->farg, totxform); |
| 523 |
/* output */ |
| 524 |
printf("0\n0\n4"); |
| 525 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
| 526 |
dv[0], dv[1], dv[2], fa->farg[3]); |
| 527 |
freefargs(fa); |
| 528 |
return(0); |
| 529 |
} |
| 530 |
|
| 531 |
|
| 532 |
o_sphere(fin) /* transform sphere arguments */ |
| 533 |
FILE *fin; |
| 534 |
{ |
| 535 |
double cent[3], rad; |
| 536 |
register FUNARGS *fa; |
| 537 |
|
| 538 |
if ((fa = getfargs(fin)) == NULL) |
| 539 |
return(-1); |
| 540 |
if (fa->nsargs != 0 || fa->niargs != 0 || fa->nfargs != 4) |
| 541 |
return(-1); |
| 542 |
|
| 543 |
multp3(cent, fa->farg, totxform); /* transform center */ |
| 544 |
|
| 545 |
rad = fa->farg[3] * totscale; /* scale radius */ |
| 546 |
|
| 547 |
printf("0\n0\n4"); |
| 548 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
| 549 |
cent[0], cent[1], cent[2], rad); |
| 550 |
freefargs(fa); |
| 551 |
return(0); |
| 552 |
} |
| 553 |
|
| 554 |
|
| 555 |
o_face(fin) /* transform face arguments */ |
| 556 |
FILE *fin; |
| 557 |
{ |
| 558 |
double p[3]; |
| 559 |
register int i; |
| 560 |
register FUNARGS *fa; |
| 561 |
|
| 562 |
if ((fa = getfargs(fin)) == NULL) |
| 563 |
return(-1); |
| 564 |
if (fa->nsargs != 0 || fa->niargs != 0 || fa->nfargs % 3) |
| 565 |
return(-1); |
| 566 |
|
| 567 |
printf("0\n0\n%d\n", fa->nfargs); |
| 568 |
|
| 569 |
for (i = 0; i < fa->nfargs; i += 3) { |
| 570 |
if (reverse) |
| 571 |
multp3(p, fa->farg+(fa->nfargs-i-3), totxform); |
| 572 |
else |
| 573 |
multp3(p, fa->farg+i, totxform); |
| 574 |
printf(" %18.12g %18.12g %18.12g\n", p[0], p[1], p[2]); |
| 575 |
} |
| 576 |
freefargs(fa); |
| 577 |
return(0); |
| 578 |
} |
| 579 |
|
| 580 |
|
| 581 |
o_cone(fin) /* transform cone and cup arguments */ |
| 582 |
FILE *fin; |
| 583 |
{ |
| 584 |
double p0[3], p1[3], r0, r1; |
| 585 |
register FUNARGS *fa; |
| 586 |
|
| 587 |
if ((fa = getfargs(fin)) == NULL) |
| 588 |
return(-1); |
| 589 |
if (fa->nsargs != 0 || fa->niargs != 0 || fa->nfargs != 8) |
| 590 |
return(-1); |
| 591 |
|
| 592 |
printf("0\n0\n8\n"); |
| 593 |
|
| 594 |
multp3(p0, fa->farg, totxform); |
| 595 |
multp3(p1, fa->farg+3, totxform); |
| 596 |
r0 = fa->farg[6] * totscale; |
| 597 |
r1 = fa->farg[7] * totscale; |
| 598 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
| 599 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
| 600 |
printf(" %18.12g %18.12g\n", r0, r1); |
| 601 |
|
| 602 |
freefargs(fa); |
| 603 |
return(0); |
| 604 |
} |
| 605 |
|
| 606 |
|
| 607 |
o_cylinder(fin) /* transform cylinder and tube arguments */ |
| 608 |
FILE *fin; |
| 609 |
{ |
| 610 |
double p0[3], p1[3], rad; |
| 611 |
register FUNARGS *fa; |
| 612 |
|
| 613 |
if ((fa = getfargs(fin)) == NULL) |
| 614 |
return(-1); |
| 615 |
if (fa->nsargs != 0 || fa->niargs != 0 || fa->nfargs != 7) |
| 616 |
return(-1); |
| 617 |
|
| 618 |
printf("0\n0\n7\n"); |
| 619 |
|
| 620 |
multp3(p0, fa->farg, totxform); |
| 621 |
multp3(p1, fa->farg+3, totxform); |
| 622 |
rad = fa->farg[6] * totscale; |
| 623 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
| 624 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
| 625 |
printf(" %18.12g\n", rad); |
| 626 |
freefargs(fa); |
| 627 |
return(0); |
| 628 |
} |
| 629 |
|
| 630 |
|
| 631 |
o_ring(fin) /* transform ring arguments */ |
| 632 |
FILE *fin; |
| 633 |
{ |
| 634 |
double p0[3], pd[3], r0, r1; |
| 635 |
register FUNARGS *fa; |
| 636 |
|
| 637 |
if ((fa = getfargs(fin)) == NULL) |
| 638 |
return(-1); |
| 639 |
if (fa->nsargs != 0 || fa->niargs != 0 || fa->nfargs != 8) |
| 640 |
return(-1); |
| 641 |
|
| 642 |
printf("0\n0\n8\n"); |
| 643 |
|
| 644 |
multp3(p0, fa->farg, totxform); |
| 645 |
multv3(pd, fa->farg+3, totxform); |
| 646 |
r0 = fa->farg[6] * totscale; |
| 647 |
r1 = fa->farg[7] * totscale; |
| 648 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
| 649 |
printf(" %18.12g %18.12g %18.12g\n", pd[0], pd[1], pd[2]); |
| 650 |
printf(" %18.12g %18.12g\n", r0, r1); |
| 651 |
freefargs(fa); |
| 652 |
return(0); |
| 653 |
} |
| 654 |
|
| 655 |
|
| 656 |
FUNARGS * |
| 657 |
getfargs(fp) /* get function arguments from stream */ |
| 658 |
FILE *fp; |
| 659 |
{ |
| 660 |
char *strcpy(); |
| 661 |
char sbuf[MAXSTR]; |
| 662 |
int n; |
| 663 |
register FUNARGS *fa; |
| 664 |
register int i; |
| 665 |
|
| 666 |
if ((fa = (FUNARGS *)malloc((unsigned)sizeof(FUNARGS))) == NULL) |
| 667 |
goto memerr; |
| 668 |
if (fscanf(fp, "%d", &n) != 1 || n < 0) |
| 669 |
return(NULL); |
| 670 |
if (fa->nsargs = n) { |
| 671 |
fa->sarg = (char **)malloc((unsigned)fa->nsargs*sizeof(char *)); |
| 672 |
if (fa->sarg == NULL) |
| 673 |
goto memerr; |
| 674 |
for (i = 0; i < fa->nsargs; i++) { |
| 675 |
if (fscanf(fp, "%s", sbuf) != 1) |
| 676 |
return(NULL); |
| 677 |
if ((fa->sarg[i] = malloc((unsigned)strlen(sbuf)+1)) == NULL) |
| 678 |
goto memerr; |
| 679 |
strcpy(fa->sarg[i], sbuf); |
| 680 |
} |
| 681 |
} else |
| 682 |
fa->sarg = NULL; |
| 683 |
if (fscanf(fp, "%d", &n) != 1 || n < 0) |
| 684 |
return(NULL); |
| 685 |
if (fa->niargs = n) { |
| 686 |
fa->iarg = (int *)malloc((unsigned)fa->niargs*sizeof(int)); |
| 687 |
if (fa->iarg == NULL) |
| 688 |
goto memerr; |
| 689 |
for (i = 0; i < fa->niargs; i++) |
| 690 |
if (fscanf(fp, "%d", &fa->iarg[i]) != 1) |
| 691 |
return(NULL); |
| 692 |
} else |
| 693 |
fa->iarg = NULL; |
| 694 |
if (fscanf(fp, "%d", &n) != 1 || n < 0) |
| 695 |
return(NULL); |
| 696 |
if (fa->nfargs = n) { |
| 697 |
fa->farg = (double *)malloc((unsigned)fa->nfargs*sizeof(double)); |
| 698 |
if (fa->farg == NULL) |
| 699 |
goto memerr; |
| 700 |
for (i = 0; i < fa->nfargs; i++) |
| 701 |
if (fscanf(fp, "%lf", &fa->farg[i]) != 1) |
| 702 |
return(NULL); |
| 703 |
} else |
| 704 |
fa->farg = NULL; |
| 705 |
return(fa); |
| 706 |
memerr: |
| 707 |
fprintf(stderr, "%s: out of memory in getfargs\n", progname); |
| 708 |
exit(1); |
| 709 |
} |
| 710 |
|
| 711 |
|
| 712 |
freefargs(fa) /* free memory associated with fa */ |
| 713 |
register FUNARGS *fa; |
| 714 |
{ |
| 715 |
register int i; |
| 716 |
|
| 717 |
for (i = 0; i < fa->nsargs; i++) |
| 718 |
free(fa->sarg[i]); |
| 719 |
if (fa->nsargs) |
| 720 |
free(fa->sarg); |
| 721 |
if (fa->niargs) |
| 722 |
free(fa->iarg); |
| 723 |
if (fa->nfargs) |
| 724 |
free(fa->farg); |
| 725 |
free(fa); |
| 726 |
} |
