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#include "copyright.h" |
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< |
#include "standard.h" |
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< |
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> |
#include <ctype.h> |
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> |
#include "rtio.h" |
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> |
#include "rtmath.h" |
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> |
#include "paths.h" |
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#include "view.h" |
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#include "paths.h" |
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#define FEQ(x,y) (fabs((x)-(y)) <= FTINY) |
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#define VEQ(v,w) (FEQ((v)[0],(w)[0]) && FEQ((v)[1],(w)[1]) \ |
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VIEW stdview = STDVIEW; /* default view parameters */ |
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+ |
static gethfunc gethview; |
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+ |
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char * |
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setview(v) /* set hvec and vvec, return message on error */ |
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register VIEW *v; |
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if (v->vaft < -FTINY || (v->vaft > FTINY && v->vaft <= v->vfore)) |
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return("illegal fore/aft clipping plane"); |
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| 38 |
< |
if (normalize(v->vdir) == 0.0) /* normalize direction */ |
| 38 |
> |
if (v->vdist <= FTINY) |
| 39 |
> |
return("illegal view distance"); |
| 40 |
> |
v->vdist *= normalize(v->vdir); /* normalize direction */ |
| 41 |
> |
if (v->vdist == 0.0) |
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return("zero view direction"); |
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if (normalize(v->vup) == 0.0) /* normalize view up */ |
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v->vdir[0] = atof(av[1]); |
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v->vdir[1] = atof(av[2]); |
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v->vdir[2] = atof(av[3]); |
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v->vdist = 1.; |
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return(3); |
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case 'u': /* up */ |
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check(3,"fff"); |
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int na; |
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int nvopts = 0; |
| 403 |
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| 404 |
< |
if (*s != '-') |
| 405 |
< |
s = sskip2(s,1); |
| 404 |
> |
while (isspace(*s)) |
| 405 |
> |
if (!*s++) |
| 406 |
> |
return(0); |
| 407 |
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while (*s) { |
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ac = 0; |
| 409 |
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do { |
| 410 |
< |
av[ac++] = s; |
| 411 |
< |
while (*s && *s != ' ') |
| 410 |
> |
if (ac || *s == '-') |
| 411 |
> |
av[ac++] = s; |
| 412 |
> |
while (*s && !isspace(*s)) |
| 413 |
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s++; |
| 414 |
< |
while (*s == ' ') |
| 414 |
> |
while (isspace(*s)) |
| 415 |
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s++; |
| 416 |
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} while (*s && ac < 4); |
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if ((na = getviewopt(vp, ac, av)) >= 0) { |
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{ |
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fprintf(fp, " -vt%c", vp->type); |
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fprintf(fp, " -vp %.6g %.6g %.6g", vp->vp[0], vp->vp[1], vp->vp[2]); |
| 435 |
< |
fprintf(fp, " -vd %.6g %.6g %.6g", vp->vdir[0], vp->vdir[1], vp->vdir[2]); |
| 435 |
> |
fprintf(fp, " -vd %.6g %.6g %.6g", vp->vdir[0]*vp->vdist, |
| 436 |
> |
vp->vdir[1]*vp->vdist, |
| 437 |
> |
vp->vdir[2]*vp->vdist); |
| 438 |
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fprintf(fp, " -vu %.6g %.6g %.6g", vp->vup[0], vp->vup[1], vp->vup[2]); |
| 439 |
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fprintf(fp, " -vh %.6g -vv %.6g", vp->horiz, vp->vert); |
| 440 |
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fprintf(fp, " -vo %.6g -va %.6g", vp->vfore, vp->vaft); |
| 458 |
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vp->vp[0], vp->vp[1], vp->vp[2]); |
| 459 |
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cp += strlen(cp); |
| 460 |
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} |
| 461 |
< |
if (!VEQ(vp->vdir,stdview.vdir)) { |
| 461 |
> |
if (!FEQ(vp->vdist,stdview.vdist) || !VEQ(vp->vdir,stdview.vdir)) { |
| 462 |
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sprintf(cp, " -vd %.6g %.6g %.6g", |
| 463 |
< |
vp->vdir[0], vp->vdir[1], vp->vdir[2]); |
| 463 |
> |
vp->vdir[0]*vp->vdist, |
| 464 |
> |
vp->vdir[1]*vp->vdist, |
| 465 |
> |
vp->vdir[2]*vp->vdist); |
| 466 |
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cp += strlen(cp); |
| 467 |
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} |
| 468 |
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if (!VEQ(vp->vup,stdview.vup)) { |
| 502 |
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isview(s) /* is this a view string? */ |
| 503 |
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char *s; |
| 504 |
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{ |
| 505 |
< |
static char *altname[]={NULL,VIEWSTR,"rpict","rview","pinterp",NULL}; |
| 505 |
> |
static char *altname[]={NULL,VIEWSTR,"rpict","rview","rvu","rpiece","pinterp",NULL}; |
| 506 |
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extern char *progname; |
| 507 |
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register char *cp; |
| 508 |
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register char **an; |
| 534 |
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| 535 |
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| 536 |
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static int |
| 537 |
< |
gethview(s, v) /* get view from header */ |
| 538 |
< |
char *s; |
| 539 |
< |
register struct myview *v; |
| 537 |
> |
gethview( /* get view from header */ |
| 538 |
> |
char *s, |
| 539 |
> |
void *v |
| 540 |
> |
) |
| 541 |
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{ |
| 542 |
< |
if (isview(s) && sscanview(v->hv, s) > 0) |
| 543 |
< |
v->ok++; |
| 542 |
> |
if (isview(s) && sscanview(((struct myview*)v)->hv, s) > 0) |
| 543 |
> |
((struct myview*)v)->ok++; |
| 544 |
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return(0); |
| 545 |
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} |
| 546 |
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|
| 562 |
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mvs.hv = vp; |
| 563 |
|
mvs.ok = 0; |
| 564 |
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|
| 565 |
< |
getheader(fp, (int (*)(char *, char *))&gethview, (char *)&mvs); |
| 565 |
> |
getheader(fp, gethview, &mvs); |
| 566 |
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|
| 567 |
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if (rp != NULL && !fgetsresolu(rp, fp)) |
| 568 |
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mvs.ok = 0; |
