| 36 |
|
int nglarangs = 0; |
| 37 |
|
double maxtheta; /* maximum angle (in radians) */ |
| 38 |
|
int hsize; /* horizontal size */ |
| 39 |
– |
int hlim; /* central limit of horizontal */ |
| 39 |
|
|
| 40 |
|
struct illum *indirect; /* array of indirect illuminances */ |
| 41 |
|
|
| 47 |
|
int argc; |
| 48 |
|
char *argv[]; |
| 49 |
|
{ |
| 50 |
+ |
int combine = 1; |
| 51 |
|
int gotview = 0; |
| 52 |
|
int rval, i; |
| 53 |
|
char *err; |
| 101 |
|
case 'p': |
| 102 |
|
picture = argv[++i]; |
| 103 |
|
break; |
| 104 |
+ |
case 'c': |
| 105 |
+ |
combine = !combine; |
| 106 |
+ |
break; |
| 107 |
|
case 'd': |
| 108 |
|
case 'l': |
| 109 |
|
rtargv[rtargc++] = argv[i]; |
| 182 |
|
if (threshold <= FTINY) |
| 183 |
|
comp_thresh(); /* compute glare threshold */ |
| 184 |
|
analyze(); /* analyze view */ |
| 185 |
+ |
if (combine) |
| 186 |
+ |
absorb_specks(); /* eliminate tiny sources */ |
| 187 |
|
cleanup(); /* tidy up */ |
| 188 |
|
/* print header */ |
| 189 |
|
printargs(argc, argv, stdout); |
| 190 |
|
fputs(VIEWSTR, stdout); |
| 191 |
|
fprintview(&ourview, stdout); |
| 192 |
< |
printf("\n\n"); |
| 192 |
> |
printf("\n"); |
| 193 |
> |
fputformat("ascii", stdout); |
| 194 |
> |
printf("\n"); |
| 195 |
|
printsources(); /* print glare sources */ |
| 196 |
|
printillum(); /* print illuminances */ |
| 197 |
|
exit(0); |
| 226 |
|
maxtheta = (PI/180.)*glarang[nglarangs-1]; |
| 227 |
|
else |
| 228 |
|
maxtheta = 0.0; |
| 229 |
< |
hlim = sampdens*maxtheta; |
| 223 |
< |
hsize = hlim + sampdens - 1; |
| 229 |
> |
hsize = hlim(0) + sampdens - 1; |
| 230 |
|
if (hsize > (int)(PI*sampdens)) |
| 231 |
|
hsize = PI*sampdens; |
| 232 |
|
indirect = (struct illum *)calloc(nglardirs, sizeof(struct illum)); |
| 281 |
|
cleanup() /* close files, wait for children */ |
| 282 |
|
{ |
| 283 |
|
if (verbose) |
| 284 |
< |
fprintf(stderr, "%s: cleaning up...\n", progname); |
| 284 |
> |
fprintf(stderr, "%s: cleaning up... \n", progname); |
| 285 |
|
if (picture != NULL) |
| 286 |
|
close_pict(); |
| 287 |
|
if (octree != NULL) |
| 296 |
|
FVECT vd; |
| 297 |
|
int x, y; |
| 298 |
|
{ |
| 299 |
+ |
int hl; |
| 300 |
|
FVECT org; /* dummy variable */ |
| 301 |
|
|
| 302 |
< |
if (x <= -hlim) /* left region */ |
| 302 |
> |
hl = hlim(y); |
| 303 |
> |
if (x <= -hl) { /* left region */ |
| 304 |
> |
if (x <= -hl-sampdens) |
| 305 |
> |
return(-1); |
| 306 |
|
return(viewray(org, vd, &leftview, |
| 307 |
< |
(double)(x+hlim)/(2*sampdens)+.5, |
| 307 |
> |
(double)(x+hl)/(2*sampdens)+.5, |
| 308 |
|
(double)y/(2*sampdens)+.5)); |
| 309 |
< |
if (x >= hlim) /* right region */ |
| 309 |
> |
} |
| 310 |
> |
if (x >= hl) { /* right region */ |
| 311 |
> |
if (x >= hl+sampdens) |
| 312 |
> |
return(-1); |
| 313 |
|
return(viewray(org, vd, &rightview, |
| 314 |
< |
(double)(x-hlim)/(2*sampdens)+.5, |
| 314 |
> |
(double)(x-hl)/(2*sampdens)+.5, |
| 315 |
|
(double)y/(2*sampdens)+.5)); |
| 316 |
< |
/* central region */ |
| 316 |
> |
} |
| 317 |
> |
/* central region */ |
| 318 |
|
if (viewray(org, vd, &ourview, .5, (double)y/(2*sampdens)+.5) < 0) |
| 319 |
|
return(-1); |
| 320 |
< |
spinvector(vd, vd, ourview.vup, h_theta(x)); |
| 320 |
> |
spinvector(vd, vd, ourview.vup, h_theta(x,y)); |
| 321 |
|
return(0); |
| 322 |
+ |
} |
| 323 |
+ |
|
| 324 |
+ |
|
| 325 |
+ |
double |
| 326 |
+ |
pixsize(x, y) /* return the solid angle of pixel at (x,y) */ |
| 327 |
+ |
int x, y; |
| 328 |
+ |
{ |
| 329 |
+ |
register int hl, xo; |
| 330 |
+ |
double disc; |
| 331 |
+ |
|
| 332 |
+ |
hl = hlim(y); |
| 333 |
+ |
if (x < -hl) |
| 334 |
+ |
xo = x+hl; |
| 335 |
+ |
else if (x > hl) |
| 336 |
+ |
xo = x-hl; |
| 337 |
+ |
else |
| 338 |
+ |
xo = 0; |
| 339 |
+ |
disc = 1. - (double)(xo*xo + y*y)/(sampdens*sampdens); |
| 340 |
+ |
if (disc <= FTINY) |
| 341 |
+ |
return(0.); |
| 342 |
+ |
return(1./(sampdens*sampdens*sqrt(disc))); |
| 343 |
|
} |
| 344 |
|
|
| 345 |
|
|