105 |
|
c_ccname = NULL; |
106 |
|
return(MG_OK); |
107 |
|
} |
108 |
+ |
if (!isname(av[1])) |
109 |
+ |
return(MG_EILL); |
110 |
|
lp = lu_find(&clr_tab, av[1]); /* lookup context */ |
111 |
|
if (lp == NULL) |
112 |
|
return(MG_EMEM); |
223 |
|
c_cmname = NULL; |
224 |
|
return(MG_OK); |
225 |
|
} |
226 |
+ |
if (!isname(av[1])) |
227 |
+ |
return(MG_EILL); |
228 |
|
lp = lu_find(&mat_tab, av[1]); /* lookup context */ |
229 |
|
if (lp == NULL) |
230 |
|
return(MG_EMEM); |
263 |
|
*c_cmaterial = *(C_MATERIAL *)lp->data; |
264 |
|
c_cmaterial->clock = i + 1; |
265 |
|
return(MG_OK); |
266 |
+ |
case MG_E_IR: /* set index of refraction */ |
267 |
+ |
if (ac != 3) |
268 |
+ |
return(MG_EARGC); |
269 |
+ |
if (!isflt(av[1]) | !isflt(av[2])) |
270 |
+ |
return(MG_ETYPE); |
271 |
+ |
c_cmaterial->nr = atof(av[1]); |
272 |
+ |
c_cmaterial->ni = atof(av[2]); |
273 |
+ |
if (c_cmaterial->nr <= FTINY) |
274 |
+ |
return(MG_EILL); |
275 |
+ |
c_cmaterial->clock++; |
276 |
+ |
return(MG_OK); |
277 |
|
case MG_E_RD: /* set diffuse reflectance */ |
278 |
|
if (ac != 2) |
279 |
|
return(MG_EARGC); |
370 |
|
c_cvname = NULL; |
371 |
|
return(MG_OK); |
372 |
|
} |
373 |
+ |
if (!isname(av[1])) |
374 |
+ |
return(MG_EILL); |
375 |
|
lp = lu_find(&vtx_tab, av[1]); /* lookup context */ |
376 |
|
if (lp == NULL) |
377 |
|
return(MG_EMEM); |
571 |
|
int n, imax; |
572 |
|
int wl; |
573 |
|
double wl0, wlstep; |
574 |
+ |
double boxpos, boxstep; |
575 |
|
/* check bounds */ |
576 |
|
if (wlmax <= C_CMINWL | wlmax <= wlmin | wlmin >= C_CMAXWL) |
577 |
|
return(MG_EILL); |
584 |
|
wlmax -= wlstep; |
585 |
|
ac--; |
586 |
|
} |
569 |
– |
if (ac < 2) |
570 |
– |
return(MG_EILL); |
587 |
|
imax = ac; /* box filter if necessary */ |
588 |
+ |
boxpos = 0; |
589 |
+ |
boxstep = 1; |
590 |
|
if (wlstep < C_CWLI) { |
591 |
+ |
imax = (wlmax - wlmin)/C_CWLI + (1-FTINY); |
592 |
+ |
boxpos = (wlmin - C_CMINWL)/C_CWLI; |
593 |
+ |
boxstep = wlstep/C_CWLI; |
594 |
|
wlstep = C_CWLI; |
574 |
– |
imax = (wlmax - wlmin)/wlstep; |
595 |
|
} |
596 |
|
scale = 0.; /* get values and maximum */ |
597 |
|
pos = 0; |
598 |
|
for (i = 0; i < imax; i++) { |
599 |
|
va[i] = 0.; n = 0; |
600 |
< |
while (pos < (i+.5)*ac/imax) { |
600 |
> |
while (boxpos < i+.5 && pos < ac) { |
601 |
|
if (!isflt(av[pos])) |
602 |
|
return(MG_ETYPE); |
603 |
|
va[i] += atof(av[pos++]); |
604 |
|
n++; |
605 |
+ |
boxpos += boxstep; |
606 |
|
} |
607 |
|
if (n > 1) |
608 |
|
va[i] /= (double)n; |
588 |
– |
if (va[i] < 0.) |
589 |
– |
return(MG_EILL); |
609 |
|
if (va[i] > scale) |
610 |
|
scale = va[i]; |
611 |
+ |
else if (va[i] < -scale) |
612 |
+ |
scale = -va[i]; |
613 |
|
} |
614 |
< |
if (scale == 0.) |
614 |
> |
if (scale <= FTINY) |
615 |
|
return(MG_EILL); |
616 |
|
scale = C_CMAXV / scale; |
617 |
|
clr->ssum = 0; /* convert to our spacing */ |