| 9 |
|
|
| 10 |
|
#include "copyright.h" |
| 11 |
|
|
| 12 |
+ |
#include <ctype.h> |
| 13 |
|
#include "rtio.h" |
| 14 |
|
#include "rtmath.h" |
| 15 |
|
#include "paths.h" |
| 35 |
|
if (v->vaft < -FTINY || (v->vaft > FTINY && v->vaft <= v->vfore)) |
| 36 |
|
return("illegal fore/aft clipping plane"); |
| 37 |
|
|
| 38 |
+ |
if (v->vdist <= FTINY) |
| 39 |
+ |
return("illegal view distance"); |
| 40 |
|
v->vdist *= normalize(v->vdir); /* normalize direction */ |
| 41 |
|
if (v->vdist == 0.0) |
| 42 |
|
return("zero view direction"); |
| 352 |
|
v->vdir[0] = atof(av[1]); |
| 353 |
|
v->vdir[1] = atof(av[2]); |
| 354 |
|
v->vdir[2] = atof(av[3]); |
| 355 |
+ |
v->vdist = 1.; |
| 356 |
|
return(3); |
| 357 |
|
case 'u': /* up */ |
| 358 |
|
check(3,"fff"); |
| 401 |
|
int na; |
| 402 |
|
int nvopts = 0; |
| 403 |
|
|
| 404 |
< |
while (*s == ' ') |
| 405 |
< |
s++; |
| 406 |
< |
if (*s != '-') |
| 403 |
< |
s = sskip2(s,1); |
| 404 |
> |
while (isspace(*s)) |
| 405 |
> |
if (!*s++) |
| 406 |
> |
return(0); |
| 407 |
|
while (*s) { |
| 408 |
|
ac = 0; |
| 409 |
|
do { |
| 410 |
|
if (ac || *s == '-') |
| 411 |
|
av[ac++] = s; |
| 412 |
< |
while (*s && *s != ' ') |
| 412 |
> |
while (*s && !isspace(*s)) |
| 413 |
|
s++; |
| 414 |
< |
while (*s == ' ') |
| 414 |
> |
while (isspace(*s)) |
| 415 |
|
s++; |
| 416 |
|
} while (*s && ac < 4); |
| 417 |
|
if ((na = getviewopt(vp, ac, av)) >= 0) { |
