27 |
|
/* system materials & geometry */ |
28 |
|
const char *mgf_geometry = NULL; |
29 |
|
|
30 |
< |
/* angle basis */ |
30 |
> |
/* angle bases */ |
31 |
|
enum { ABdefault=-1, ABklemsFull=0, ABklemsHalf, ABklemsQuarter, |
32 |
|
ABtensorTree3, ABtensorTree4, ABend }; |
33 |
|
|
378 |
|
return -1; |
379 |
|
} |
380 |
|
|
381 |
+ |
/* Filter Klems angle basis, applying appropriate solid angle correction */ |
382 |
+ |
static int |
383 |
+ |
filter_klems_matrix(FILE *fp) |
384 |
+ |
{ |
385 |
+ |
#define MAX_COLUMNS 145 |
386 |
+ |
float col_corr[MAX_COLUMNS]; |
387 |
+ |
const char *bn; |
388 |
+ |
int i, j, n = nabases; |
389 |
+ |
/* get angle basis */ |
390 |
+ |
switch (angle_basis) { |
391 |
+ |
case ABklemsFull: bn = "LBNL/Klems Full"; break; |
392 |
+ |
case ABklemsHalf: bn = "LBNL/Klems Half"; break; |
393 |
+ |
case ABklemsQuarter: bn = "LBNL/Klems Quarter"; break; |
394 |
+ |
default: |
395 |
+ |
return 0; |
396 |
+ |
} |
397 |
+ |
while (n-- > 0) |
398 |
+ |
if (!strcasecmp(bn, abase_list[n].name)) |
399 |
+ |
break; |
400 |
+ |
if (n < 0) |
401 |
+ |
return 0; |
402 |
+ |
if (abase_list[n].nangles > MAX_COLUMNS) { |
403 |
+ |
fprintf(stderr, "Internal error - too many Klems columns!\n"); |
404 |
+ |
return 0; |
405 |
+ |
} |
406 |
+ |
/* get correction factors */ |
407 |
+ |
for (j = abase_list[n].nangles; j--; ) |
408 |
+ |
col_corr[j] = 1.f / io_getohm(j, &abase_list[n]); |
409 |
+ |
/* read/correct/write matrix */ |
410 |
+ |
for (i = 0; i < abase_list[n].nangles; i++) { |
411 |
+ |
for (j = 0; j < abase_list[n].nangles; j++) { |
412 |
+ |
double d; |
413 |
+ |
if (fscanf(fp, "%lf", &d) != 1) |
414 |
+ |
return 0; |
415 |
+ |
printf(" %f", d*col_corr[j]); |
416 |
+ |
} |
417 |
+ |
fputc('\n', stdout); |
418 |
+ |
} |
419 |
+ |
return 1; |
420 |
+ |
#undef MAX_COLUMNS |
421 |
+ |
} |
422 |
+ |
|
423 |
|
/* Write out BSDF data block with surrounding tags */ |
424 |
|
static int |
425 |
|
writeBSDFblock(const char *caller, struct s_dfile *df) |
426 |
|
{ |
427 |
+ |
int klems_data = 0; |
428 |
|
char *cp; |
429 |
|
|
430 |
|
puts("\t<WavelengthData>"); |
488 |
|
return 0; |
489 |
|
} |
490 |
|
puts("</WavelengthDataDirection>"); |
491 |
+ |
klems_data = 1; |
492 |
|
switch (angle_basis) { |
493 |
|
case ABklemsFull: |
494 |
|
puts("\t\t\t<ColumnAngleBasis>LBNL/Klems Full</ColumnAngleBasis>"); |
502 |
|
case ABtensorTree3: |
503 |
|
case ABtensorTree4: |
504 |
|
puts("\t\t\t<AngleBasis>LBNL/Shirley-Chiu</AngleBasis>"); |
505 |
+ |
klems_data = 0; |
506 |
|
break; |
507 |
|
default: |
508 |
|
fprintf(stderr, "%s: bad angle basis (%d)\n", caller, angle_basis); |
511 |
|
puts("\t\t\t<ScatteringDataType>BTDF</ScatteringDataType>"); |
512 |
|
puts("\t\t\t<ScatteringData>"); |
513 |
|
fflush(stdout); |
514 |
< |
if (df->fname == stdin_name) { |
514 |
> |
if (klems_data) { |
515 |
> |
FILE *fp = stdin; |
516 |
> |
if (df->fname[0] == '!') |
517 |
> |
fp = popen(df->fname+1, "r"); |
518 |
> |
else if (df->fname != stdin_name) |
519 |
> |
fp = fopen(df->fname, "r"); |
520 |
> |
if (fp == NULL) { |
521 |
> |
fprintf(stderr, "%s: cannot open '%s'\n", |
522 |
> |
caller, df->fname); |
523 |
> |
return 0; |
524 |
> |
} |
525 |
> |
if (!filter_klems_matrix(fp)) { |
526 |
> |
fprintf(stderr, "%s: Klems data error from '%s'\n", |
527 |
> |
caller, df->fname); |
528 |
> |
return 0; |
529 |
> |
} |
530 |
> |
if (df->fname[0] != '!') { |
531 |
> |
fclose(fp); |
532 |
> |
} else if (pclose(fp)) { |
533 |
> |
fprintf(stderr, "%s: error running '%s'\n", |
534 |
> |
caller, df->fname); |
535 |
> |
return 0; |
536 |
> |
} |
537 |
> |
} else if (df->fname == stdin_name) { |
538 |
|
copy_and_close(fileno(stdin)); |
539 |
|
} else if (df->fname[0] != '!') { |
540 |
|
if (!copy_and_close(open(df->fname, O_RDONLY))) { |