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(); |