| 35 |
|
int iscomplete = 0; /* polygon is already completed */ |
| 36 |
|
double crad = 0.0; /* radius for corners (sign from lvdir) */ |
| 37 |
|
|
| 38 |
– |
static double compute_rounding(void); |
| 38 |
|
|
| 39 |
< |
|
| 41 |
< |
static void |
| 39 |
> |
void |
| 40 |
|
readverts(char *fname) /* read vertices from a file */ |
| 41 |
|
{ |
| 42 |
|
FILE *fp; |
| 43 |
|
|
| 44 |
< |
if (fname == NULL) |
| 44 |
> |
if (fname == NULL) { |
| 45 |
|
fp = stdin; |
| 46 |
< |
else if ((fp = fopen(fname, "r")) == NULL) { |
| 46 |
> |
fname = "<stdin>"; |
| 47 |
> |
} else if ((fp = fopen(fname, "r")) == NULL) { |
| 48 |
|
fprintf(stderr, "%s: cannot open\n", fname); |
| 49 |
|
exit(1); |
| 50 |
|
} |
| 51 |
|
while (fscanf(fp, "%lf %lf", &vert[nverts][0], &vert[nverts][1]) == 2) |
| 52 |
< |
nverts++; |
| 52 |
> |
if (++nverts >= MAXVERT) |
| 53 |
> |
break; |
| 54 |
> |
|
| 55 |
> |
if (!feof(fp)) { |
| 56 |
> |
if (nverts < MAXVERT) { |
| 57 |
> |
fprintf(stderr, "%s: warning - non-numerical data\n", fname); |
| 58 |
> |
} else { |
| 59 |
> |
fprintf(stderr, "%s: too many vertices\n", fname); |
| 60 |
> |
exit(1); |
| 61 |
> |
} |
| 62 |
> |
} |
| 63 |
|
fclose(fp); |
| 64 |
|
} |
| 65 |
|
|
| 66 |
|
|
| 67 |
< |
static void |
| 67 |
> |
void |
| 68 |
|
side(int n0, int n1) /* print single side */ |
| 69 |
|
{ |
| 70 |
|
printf("\n%s polygon %s.%d\n", pmtype, pname, n0+1); |
| 80 |
|
} |
| 81 |
|
|
| 82 |
|
|
| 83 |
< |
static void |
| 83 |
> |
void |
| 84 |
|
rside(int n0, int n1) /* print side with rounded edge */ |
| 85 |
|
{ |
| 86 |
|
double s, c, t[3]; |
| 130 |
|
} |
| 131 |
|
|
| 132 |
|
|
| 133 |
< |
static double |
| 134 |
< |
compute_rounding(void) /* compute vectors for rounding operations */ |
| 133 |
> |
double |
| 134 |
> |
compute_rounding() /* compute vectors for rounding operations */ |
| 135 |
|
{ |
| 136 |
|
int i; |
| 137 |
|
double *v0, *v1; |
| 174 |
|
} |
| 175 |
|
|
| 176 |
|
|
| 177 |
< |
static void |
| 178 |
< |
printends(void) /* print ends of prism */ |
| 177 |
> |
void |
| 178 |
> |
printends() /* print ends of prism */ |
| 179 |
|
{ |
| 180 |
|
int i; |
| 181 |
|
/* bottom face */ |
| 193 |
|
} |
| 194 |
|
|
| 195 |
|
|
| 196 |
< |
static void |
| 197 |
< |
printrends(void) /* print ends of prism with rounding */ |
| 196 |
> |
void |
| 197 |
> |
printrends() /* print ends of prism with rounding */ |
| 198 |
|
{ |
| 199 |
|
int i; |
| 200 |
|
double c0[3], c1[3], cl[3]; |
| 273 |
|
} |
| 274 |
|
|
| 275 |
|
|
| 276 |
< |
static void |
| 276 |
> |
void |
| 277 |
|
printsides(int round) /* print prism sides */ |
| 278 |
|
{ |
| 279 |
|
int i; |
| 310 |
|
nverts = atoi(argv[3]); |
| 311 |
|
if (argc-3 < 2*nverts) |
| 312 |
|
goto userr; |
| 313 |
+ |
if (nverts > MAXVERT) { |
| 314 |
+ |
fprintf(stderr, "%s: too many vertices\n", argv[0]); |
| 315 |
+ |
return(1); |
| 316 |
+ |
} |
| 317 |
|
for (an = 0; an < nverts; an++) { |
| 318 |
|
vert[an][0] = atof(argv[2*an+4]); |
| 319 |
|
vert[an][1] = atof(argv[2*an+5]); |
| 325 |
|
} |
| 326 |
|
if (nverts < 3) { |
| 327 |
|
fprintf(stderr, "%s: not enough vertices\n", argv[0]); |
| 328 |
< |
exit(1); |
| 328 |
> |
return(1); |
| 329 |
|
} |
| 330 |
|
|
| 331 |
|
for ( ; an < argc; an++) { |
| 344 |
|
fprintf(stderr, |
| 345 |
|
"%s: illegal extrusion vector\n", |
| 346 |
|
argv[0]); |
| 347 |
< |
exit(1); |
| 347 |
> |
return(1); |
| 348 |
|
} |
| 349 |
|
llen = sqrt(lvect[0]*lvect[0] + lvect[1]*lvect[1] + |
| 350 |
|
lvect[2]*lvect[2]); |
| 366 |
|
if (crad > lvdir*lvect[2]) { |
| 367 |
|
fprintf(stderr, "%s: rounding greater than height\n", |
| 368 |
|
argv[0]); |
| 369 |
< |
exit(1); |
| 369 |
> |
return(1); |
| 370 |
|
} |
| 371 |
|
crad *= lvdir; /* simplifies formulas */ |
| 372 |
|
compute_rounding(); |