67 |
|
e_cmix(), /* color mixtures */ |
68 |
|
e_cspec(); /* color spectra */ |
69 |
|
|
70 |
– |
int e_include(), /* include file */ |
71 |
– |
e_sph(), /* sphere */ |
72 |
– |
e_cyl(), /* cylinder */ |
73 |
– |
e_cone(), /* cone */ |
74 |
– |
e_prism(), /* prism */ |
75 |
– |
e_ring(), /* ring */ |
76 |
– |
e_torus(); /* torus */ |
77 |
– |
|
70 |
|
/* alternate handler support functions */ |
71 |
|
|
72 |
|
static int (*e_supp[MG_NENTITIES])(); |
116 |
|
ineed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX; |
117 |
|
} else |
118 |
|
uneed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
119 |
+ |
if (mg_ehand[MG_E_FACE] == NULL) |
120 |
+ |
mg_ehand[MG_E_FACE] = mg_ehand[MG_E_FACEH]; |
121 |
+ |
else if (mg_ehand[MG_E_FACEH] == NULL) |
122 |
+ |
mg_ehand[MG_E_FACEH] = e_faceh; |
123 |
|
if (mg_ehand[MG_E_COLOR] != NULL) { |
124 |
|
if (mg_ehand[MG_E_CMIX] == NULL) { |
125 |
|
mg_ehand[MG_E_CMIX] = e_cmix; |
315 |
|
{ |
316 |
|
char abuf[MG_MAXLINE]; |
317 |
|
char *argv[MG_MAXARGC]; |
322 |
– |
int en; |
318 |
|
register char *cp, *cp2, **ap; |
319 |
|
/* copy line, removing escape chars */ |
320 |
|
cp = abuf; cp2 = mg_file->inpline; |
459 |
|
} |
460 |
|
|
461 |
|
|
462 |
+ |
int |
463 |
+ |
e_faceh(ac, av) /* replace face+holes with single contour */ |
464 |
+ |
int ac; |
465 |
+ |
char **av; |
466 |
+ |
{ |
467 |
+ |
char *newav[MG_MAXARGC]; |
468 |
+ |
int lastp = 0; |
469 |
+ |
register int i, j; |
470 |
+ |
|
471 |
+ |
newav[0] = mg_ename[MG_E_FACE]; |
472 |
+ |
for (i = 1; i < ac; i++) |
473 |
+ |
if (av[i][0] == '-') { |
474 |
+ |
if (i < 4) |
475 |
+ |
return(MG_EARGC); |
476 |
+ |
if (i >= ac-1) |
477 |
+ |
break; |
478 |
+ |
if (!lastp) |
479 |
+ |
lastp = i-1; |
480 |
+ |
for (j = i+1; j < ac-1 && av[j+1][0] != '-'; j++) |
481 |
+ |
; |
482 |
+ |
if (j - i < 3) |
483 |
+ |
return(MG_EARGC); |
484 |
+ |
newav[i] = av[j]; /* connect hole loop */ |
485 |
+ |
} else |
486 |
+ |
newav[i] = av[i]; /* hole or perimeter vertex */ |
487 |
+ |
if (lastp) |
488 |
+ |
newav[i++] = av[lastp]; /* finish seam to outside */ |
489 |
+ |
newav[i] = NULL; |
490 |
+ |
return(mg_handle(MG_E_FACE, i, newav)); |
491 |
+ |
} |
492 |
+ |
|
493 |
+ |
|
494 |
|
static void |
495 |
|
make_axes(u, v, w) /* compute u and v given w (normalized) */ |
496 |
|
FVECT u, v, w; |
809 |
|
if (rad2 == 0.) |
810 |
|
return(MG_EILL); |
811 |
|
} else if (rad2 != 0.) { |
812 |
< |
if (rad1 < 0. ^ rad2 < 0.) |
812 |
> |
if ((rad1 < 0.) ^ (rad2 < 0.)) |
813 |
|
return(MG_EILL); |
814 |
|
} else { /* swap */ |
815 |
|
C_VERTEX *cv; |