1 |
/* Copyright (c) 1992 Regents of the University of California */ |
2 |
|
3 |
#ifndef lint |
4 |
static char SCCSid[] = "$SunId$ LBL"; |
5 |
#endif |
6 |
|
7 |
/* |
8 |
* Convert IES luminaire data to Radiance description |
9 |
* |
10 |
* 07Apr90 Greg Ward |
11 |
*/ |
12 |
|
13 |
#include <stdio.h> |
14 |
#include <ctype.h> |
15 |
#include "color.h" |
16 |
#include "paths.h" |
17 |
|
18 |
#define PI 3.14159265358979323846 |
19 |
/* floating comparisons */ |
20 |
#define FTINY 1e-6 |
21 |
#define FEQ(a,b) ((a)<=(b)+FTINY&&(a)>=(b)-FTINY) |
22 |
/* tilt specs */ |
23 |
#define TLTSTR "TILT=" |
24 |
#define TLTSTRLEN 5 |
25 |
#define TLTNONE "NONE" |
26 |
#define TLTINCL "INCLUDE" |
27 |
#define TLT_VERT 1 |
28 |
#define TLT_H0 2 |
29 |
#define TLT_H90 3 |
30 |
/* photometric types */ |
31 |
#define PM_C 1 |
32 |
#define PM_B 2 |
33 |
/* unit types */ |
34 |
#define U_FEET 1 |
35 |
#define U_METERS 2 |
36 |
/* string lengths */ |
37 |
#define MAXLINE 132 |
38 |
#define MAXWORD 76 |
39 |
/* file types */ |
40 |
#define T_RAD ".rad" |
41 |
#define T_DST ".dat" |
42 |
#define T_TLT "+.dat" |
43 |
/* shape types */ |
44 |
#define RECT 1 |
45 |
#define DISK 2 |
46 |
#define SPHERE 3 |
47 |
|
48 |
#define MINDIM .001 /* minimum dimension (point source) */ |
49 |
|
50 |
#define F_M .3048 /* feet to meters */ |
51 |
|
52 |
#define abspath(p) (ISDIRSEP((p)[0]) || (p)[0] == '.') |
53 |
|
54 |
static char default_name[] = "default"; |
55 |
|
56 |
char *libdir = NULL; /* library directory location */ |
57 |
char *prefdir = NULL; /* subdirectory */ |
58 |
char *lampdat = "lamp.tab"; /* lamp data file */ |
59 |
|
60 |
double meters2out = 1.0; /* conversion from meters to output */ |
61 |
char *lamptype = NULL; /* selected lamp type */ |
62 |
char *deflamp = NULL; /* default lamp type */ |
63 |
float defcolor[3] = {1.,1.,1.}; /* default lamp color */ |
64 |
float *lampcolor = defcolor; /* pointer to current lamp color */ |
65 |
double multiplier = 1.0; /* multiplier for all light sources */ |
66 |
char units[64] = "meters"; /* output units */ |
67 |
double illumrad = 0.0; /* radius for illum sphere */ |
68 |
|
69 |
typedef struct { |
70 |
int type; /* RECT, DISK, SPHERE */ |
71 |
double w, l, h; /* width, length, height */ |
72 |
double area; /* max. projected area */ |
73 |
} SHAPE; /* a source shape */ |
74 |
|
75 |
int gargc; /* global argc (minus filenames) */ |
76 |
char **gargv; /* global argv */ |
77 |
|
78 |
extern char *strcpy(), *strcat(), *stradd(), *tailtrunc(), *filetrunc(), |
79 |
*filename(), *libname(), *fullname(), *malloc(); |
80 |
extern float *matchlamp(); |
81 |
|
82 |
|
83 |
main(argc, argv) |
84 |
int argc; |
85 |
char *argv[]; |
86 |
{ |
87 |
char *outfile = NULL; |
88 |
int status; |
89 |
char outname[MAXWORD]; |
90 |
double d1; |
91 |
int i; |
92 |
|
93 |
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
94 |
switch (argv[i][1]) { |
95 |
case 'd': /* dimensions */ |
96 |
if (argv[i][2] == '\0') |
97 |
goto badopt; |
98 |
if (argv[i][3] == '\0') |
99 |
d1 = 1.0; |
100 |
else if (argv[i][3] == '/') { |
101 |
d1 = atof(argv[i]+4); |
102 |
if (d1 <= FTINY) |
103 |
goto badopt; |
104 |
} else |
105 |
goto badopt; |
106 |
switch (argv[i][2]) { |
107 |
case 'c': /* centimeters */ |
108 |
if (FEQ(d1,10.)) |
109 |
strcpy(units,"millimeters"); |
110 |
else { |
111 |
strcpy(units,"centimeters"); |
112 |
strcat(units,argv[i]+3); |
113 |
} |
114 |
meters2out = 100.*d1; |
115 |
break; |
116 |
case 'm': /* meters */ |
117 |
if (FEQ(d1,1000.)) |
118 |
strcpy(units,"millimeters"); |
119 |
else if (FEQ(d1,100.)) |
120 |
strcpy(units,"centimeters"); |
121 |
else { |
122 |
strcpy(units,"meters"); |
123 |
strcat(units,argv[i]+3); |
124 |
} |
125 |
meters2out = d1; |
126 |
break; |
127 |
case 'i': /* inches */ |
128 |
strcpy(units,"inches"); |
129 |
strcat(units,argv[i]+3); |
130 |
meters2out = d1*(12./F_M); |
131 |
break; |
132 |
case 'f': /* feet */ |
133 |
if (FEQ(d1,12.)) |
134 |
strcpy(units,"inches"); |
135 |
else { |
136 |
strcpy(units,"feet"); |
137 |
strcat(units,argv[i]+3); |
138 |
} |
139 |
meters2out = d1/F_M; |
140 |
break; |
141 |
default: |
142 |
goto badopt; |
143 |
} |
144 |
break; |
145 |
case 'l': /* library directory */ |
146 |
libdir = argv[++i]; |
147 |
break; |
148 |
case 'p': /* prefix subdirectory */ |
149 |
prefdir = argv[++i]; |
150 |
break; |
151 |
case 'f': /* lamp data file */ |
152 |
lampdat = argv[++i]; |
153 |
break; |
154 |
case 'o': /* output file name */ |
155 |
outfile = argv[++i]; |
156 |
break; |
157 |
case 'i': /* illum */ |
158 |
illumrad = atof(argv[++i]); |
159 |
if (illumrad < MINDIM) |
160 |
illumrad = MINDIM; |
161 |
break; |
162 |
case 't': /* override lamp type */ |
163 |
lamptype = argv[++i]; |
164 |
break; |
165 |
case 'u': /* default lamp type */ |
166 |
deflamp = argv[++i]; |
167 |
break; |
168 |
case 'c': /* default lamp color */ |
169 |
defcolor[0] = atof(argv[++i]); |
170 |
defcolor[1] = atof(argv[++i]); |
171 |
defcolor[2] = atof(argv[++i]); |
172 |
break; |
173 |
case 'm': /* multiplier */ |
174 |
multiplier = atof(argv[++i]); |
175 |
break; |
176 |
default: |
177 |
badopt: |
178 |
fprintf(stderr, "%s: bad option: %s\n", |
179 |
argv[0], argv[i]); |
180 |
exit(1); |
181 |
} |
182 |
gargc = i; |
183 |
gargv = argv; |
184 |
initlamps(); /* get lamp data (if needed) */ |
185 |
/* convert ies file(s) */ |
186 |
if (outfile != NULL) { |
187 |
if (i == argc) |
188 |
exit(ies2rad(NULL, outfile) == 0 ? 0 : 1); |
189 |
else if (i == argc-1) |
190 |
exit(ies2rad(argv[i], outfile) == 0 ? 0 : 1); |
191 |
else { |
192 |
fprintf(stderr, "%s: single input file required\n", |
193 |
argv[0]); |
194 |
exit(1); |
195 |
} |
196 |
} else if (i >= argc) { |
197 |
fprintf(stderr, "%s: missing output file specification\n", |
198 |
argv[0]); |
199 |
exit(1); |
200 |
} |
201 |
status = 0; |
202 |
for ( ; i < argc; i++) { |
203 |
tailtrunc(strcpy(outname,filename(argv[i]))); |
204 |
if (ies2rad(argv[i], outname) != 0) |
205 |
status = 1; |
206 |
} |
207 |
exit(status); |
208 |
} |
209 |
|
210 |
|
211 |
initlamps() /* set up lamps */ |
212 |
{ |
213 |
float *lcol; |
214 |
int status; |
215 |
|
216 |
if (lamptype != NULL && !strcmp(lamptype, default_name) && |
217 |
deflamp == NULL) |
218 |
return; /* no need for data */ |
219 |
/* else load file */ |
220 |
if ((status = loadlamps(lampdat)) < 0) |
221 |
exit(1); |
222 |
if (status == 0) { |
223 |
fprintf(stderr, "%s: warning - no lamp data\n", lampdat); |
224 |
lamptype = default_name; |
225 |
return; |
226 |
} |
227 |
if (deflamp != NULL) { /* match default type */ |
228 |
if ((lcol = matchlamp(deflamp)) == NULL) |
229 |
fprintf(stderr, |
230 |
"%s: warning - unknown default lamp type\n", |
231 |
deflamp); |
232 |
else |
233 |
copycolor(defcolor, lcol); |
234 |
} |
235 |
if (lamptype != NULL) { /* match selected type */ |
236 |
if (strcmp(lamptype, default_name)) { |
237 |
if ((lcol = matchlamp(lamptype)) == NULL) { |
238 |
fprintf(stderr, |
239 |
"%s: warning - unknown lamp type\n", |
240 |
lamptype); |
241 |
lamptype = default_name; |
242 |
} else |
243 |
copycolor(defcolor, lcol); |
244 |
} |
245 |
freelamps(); /* all done with data */ |
246 |
} |
247 |
/* else keep lamp data */ |
248 |
} |
249 |
|
250 |
|
251 |
char * |
252 |
stradd(dst, src, sep) /* add a string at dst */ |
253 |
register char *dst, *src; |
254 |
int sep; |
255 |
{ |
256 |
if (src && *src) { |
257 |
do |
258 |
*dst++ = *src++; |
259 |
while (*src); |
260 |
if (sep && dst[-1] != sep) |
261 |
*dst++ = sep; |
262 |
} |
263 |
*dst = '\0'; |
264 |
return(dst); |
265 |
} |
266 |
|
267 |
|
268 |
char * |
269 |
fullname(path, fname, suffix) /* return full path name */ |
270 |
char *path, *fname, *suffix; |
271 |
{ |
272 |
if (prefdir != NULL && abspath(prefdir)) |
273 |
libname(path, fname, suffix); |
274 |
else if (abspath(fname)) |
275 |
strcpy(stradd(path, fname, 0), suffix); |
276 |
else |
277 |
libname(stradd(path, libdir, DIRSEP), fname, suffix); |
278 |
|
279 |
return(path); |
280 |
} |
281 |
|
282 |
|
283 |
char * |
284 |
libname(path, fname, suffix) /* return library relative name */ |
285 |
char *path, *fname, *suffix; |
286 |
{ |
287 |
if (abspath(fname)) |
288 |
strcpy(stradd(path, fname, 0), suffix); |
289 |
else |
290 |
strcpy(stradd(stradd(path, prefdir, DIRSEP), fname, 0), suffix); |
291 |
|
292 |
return(path); |
293 |
} |
294 |
|
295 |
|
296 |
char * |
297 |
filename(path) /* get final component of pathname */ |
298 |
register char *path; |
299 |
{ |
300 |
register char *cp; |
301 |
|
302 |
for (cp = path; *path; path++) |
303 |
if (ISDIRSEP(*path)) |
304 |
cp = path+1; |
305 |
return(cp); |
306 |
} |
307 |
|
308 |
|
309 |
char * |
310 |
filetrunc(path) /* truncate filename at end of path */ |
311 |
char *path; |
312 |
{ |
313 |
register char *p1, *p2; |
314 |
|
315 |
for (p1 = p2 = path; *p2; p2++) |
316 |
if (ISDIRSEP(*p2)) |
317 |
p1 = p2; |
318 |
*p1 = '\0'; |
319 |
return(path); |
320 |
} |
321 |
|
322 |
|
323 |
char * |
324 |
tailtrunc(name) /* truncate tail of filename */ |
325 |
char *name; |
326 |
{ |
327 |
register char *p1, *p2; |
328 |
|
329 |
for (p1 = filename(name); *p1 == '.'; p1++) |
330 |
; |
331 |
p2 = NULL; |
332 |
for ( ; *p1; p1++) |
333 |
if (*p1 == '.') |
334 |
p2 = p1; |
335 |
if (p2 != NULL) |
336 |
*p2 = '\0'; |
337 |
return(name); |
338 |
} |
339 |
|
340 |
|
341 |
blanktrunc(s) /* truncate spaces at end of line */ |
342 |
char *s; |
343 |
{ |
344 |
register char *cp; |
345 |
|
346 |
for (cp = s; *cp; cp++) |
347 |
; |
348 |
while (cp-- > s && isspace(*cp)) |
349 |
; |
350 |
*++cp = '\0'; |
351 |
} |
352 |
|
353 |
|
354 |
putheader(out) /* print header */ |
355 |
FILE *out; |
356 |
{ |
357 |
register int i; |
358 |
|
359 |
putc('#', out); |
360 |
for (i = 0; i < gargc; i++) { |
361 |
putc(' ', out); |
362 |
fputs(gargv[i], out); |
363 |
} |
364 |
fputs("\n# Dimensions in ", out); |
365 |
fputs(units, out); |
366 |
putc('\n', out); |
367 |
} |
368 |
|
369 |
|
370 |
ies2rad(inpname, outname) /* convert IES file */ |
371 |
char *inpname, *outname; |
372 |
{ |
373 |
char buf[MAXLINE], tltid[MAXWORD]; |
374 |
FILE *inpfp, *outfp; |
375 |
|
376 |
if (inpname == NULL) { |
377 |
inpname = "<stdin>"; |
378 |
inpfp = stdin; |
379 |
} else if ((inpfp = fopen(inpname, "r")) == NULL) { |
380 |
perror(inpname); |
381 |
return(-1); |
382 |
} |
383 |
if ((outfp = fopen(fullname(buf,outname,T_RAD), "w")) == NULL) { |
384 |
perror(buf); |
385 |
fclose(inpfp); |
386 |
return(-1); |
387 |
} |
388 |
putheader(outfp); |
389 |
if (lamptype == NULL) |
390 |
lampcolor = NULL; |
391 |
while (fgets(buf,sizeof(buf),inpfp) != NULL |
392 |
&& strncmp(buf,TLTSTR,TLTSTRLEN)) { |
393 |
blanktrunc(buf); |
394 |
if (!buf[0]) |
395 |
continue; |
396 |
fputs("#<", outfp); |
397 |
fputs(buf, outfp); |
398 |
putc('\n', outfp); |
399 |
if (lampcolor == NULL) |
400 |
lampcolor = matchlamp(buf); |
401 |
} |
402 |
if (lampcolor == NULL) { |
403 |
fprintf(stderr, "%s: warning - no lamp type\n", inpname); |
404 |
lampcolor = defcolor; |
405 |
} |
406 |
if (feof(inpfp)) { |
407 |
fprintf(stderr, "%s: not in IES format\n", inpname); |
408 |
goto readerr; |
409 |
} |
410 |
sscanf(buf+TLTSTRLEN, "%s", tltid); |
411 |
if (inpfp == stdin) |
412 |
buf[0] = '\0'; |
413 |
else |
414 |
filetrunc(strcpy(buf, inpname)); |
415 |
if (dotilt(inpfp, outfp, buf, tltid, outname, tltid) != 0) { |
416 |
fprintf(stderr, "%s: bad tilt data\n", inpname); |
417 |
goto readerr; |
418 |
} |
419 |
if (dosource(inpfp, outfp, tltid, outname) != 0) { |
420 |
fprintf(stderr, "%s: bad luminaire data\n", inpname); |
421 |
goto readerr; |
422 |
} |
423 |
fclose(outfp); |
424 |
fclose(inpfp); |
425 |
return(0); |
426 |
readerr: |
427 |
fclose(outfp); |
428 |
fclose(inpfp); |
429 |
unlink(fullname(buf,outname,T_RAD)); |
430 |
return(-1); |
431 |
} |
432 |
|
433 |
|
434 |
dotilt(in, out, dir, tltspec, dfltname, tltid) /* convert tilt data */ |
435 |
FILE *in, *out; |
436 |
char *dir, *tltspec, *dfltname, *tltid; |
437 |
{ |
438 |
int nangles, tlt_type; |
439 |
double minmax[2]; |
440 |
char buf[MAXPATH], tltname[MAXWORD]; |
441 |
FILE *datin, *datout; |
442 |
|
443 |
if (!strcmp(tltspec, TLTNONE)) { |
444 |
datin = NULL; |
445 |
strcpy(tltid, "void"); |
446 |
} else if (!strcmp(tltspec, TLTINCL)) { |
447 |
datin = in; |
448 |
strcpy(tltname, dfltname); |
449 |
} else { |
450 |
if (ISDIRSEP(tltspec[0])) |
451 |
strcpy(buf, tltspec); |
452 |
else |
453 |
strcpy(stradd(buf, dir, DIRSEP), tltspec); |
454 |
if ((datin = fopen(buf, "r")) == NULL) { |
455 |
perror(buf); |
456 |
return(-1); |
457 |
} |
458 |
tailtrunc(strcpy(tltname,filename(tltspec))); |
459 |
} |
460 |
if (datin != NULL) { |
461 |
if ((datout = fopen(fullname(buf,tltname,T_TLT),"w")) == NULL) { |
462 |
perror(buf); |
463 |
if (datin != in) |
464 |
fclose(datin); |
465 |
return(-1); |
466 |
} |
467 |
if (fscanf(datin, "%d %d", &tlt_type, &nangles) != 2 |
468 |
|| cvdata(datin,datout,1,&nangles,1.,minmax) != 0) { |
469 |
fprintf(stderr, "%s: data format error\n", tltspec); |
470 |
fclose(datout); |
471 |
if (datin != in) |
472 |
fclose(datin); |
473 |
unlink(fullname(buf,tltname,T_TLT)); |
474 |
return(-1); |
475 |
} |
476 |
fclose(datout); |
477 |
if (datin != in) |
478 |
fclose(datin); |
479 |
strcat(strcpy(tltid, filename(tltname)), "_tilt"); |
480 |
fprintf(out, "\nvoid brightdata %s\n", tltid); |
481 |
libname(buf,tltname,T_TLT); |
482 |
switch (tlt_type) { |
483 |
case TLT_VERT: /* vertical */ |
484 |
fprintf(out, "4 noop %s tilt.cal %s\n", buf, |
485 |
minmax[1]>90.+FTINY ? "tilt_ang" : "tilt_ang2"); |
486 |
break; |
487 |
case TLT_H0: /* horiz. in 0 deg. plane */ |
488 |
fprintf(out, "6 noop %s tilt.cal %s -rz 90\n", buf, |
489 |
minmax[1]>90.+FTINY ? "tilt_xang" : "tilt_xang2"); |
490 |
break; |
491 |
case TLT_H90: |
492 |
fprintf(out, "4 noop %s tilt.cal %s\n", buf, |
493 |
minmax[1]>90.+FTINY ? "tilt_xang" : "tilt_xang2"); |
494 |
break; |
495 |
default: |
496 |
fprintf(stderr, |
497 |
"%s: illegal lamp to luminaire geometry (%d)\n", |
498 |
tltspec, tlt_type); |
499 |
return(-1); |
500 |
} |
501 |
fprintf(out, "0\n0\n"); |
502 |
} |
503 |
return(0); |
504 |
} |
505 |
|
506 |
|
507 |
dosource(in, out, mod, name) /* create source and distribution */ |
508 |
FILE *in, *out; |
509 |
char *mod, *name; |
510 |
{ |
511 |
SHAPE srcshape; |
512 |
char buf[MAXPATH], id[MAXWORD]; |
513 |
FILE *datout; |
514 |
double mult, bfactor, pfactor, width, length, height, wattage; |
515 |
double bounds[2][2]; |
516 |
int nangles[2], pmtype, unitype; |
517 |
double d1; |
518 |
|
519 |
if (fscanf(in, "%*d %*f %lf %d %d %d %d %lf %lf %lf %lf %lf %lf", |
520 |
&mult, &nangles[0], &nangles[1], &pmtype, &unitype, |
521 |
&width, &length, &height, &bfactor, &pfactor, |
522 |
&wattage) != 11) { |
523 |
fprintf(stderr, "dosource: bad lamp specification\n"); |
524 |
return(-1); |
525 |
} |
526 |
if (nangles[0] < 2 || nangles[1] < 1) { |
527 |
fprintf(stderr, "dosource: too few measured angles\n"); |
528 |
return(-1); |
529 |
} |
530 |
if (unitype == U_FEET) { |
531 |
width *= F_M; |
532 |
length *= F_M; |
533 |
height *= F_M; |
534 |
} |
535 |
if (makeshape(&srcshape, width, length, height) != 0) { |
536 |
fprintf(stderr, "dosource: illegal source dimensions"); |
537 |
return(-1); |
538 |
} |
539 |
if ((datout = fopen(fullname(buf,name,T_DST), "w")) == NULL) { |
540 |
perror(buf); |
541 |
return(-1); |
542 |
} |
543 |
if (cvdata(in, datout, 2, nangles, 1./WHTEFFICACY, bounds) != 0) { |
544 |
fprintf(stderr, "dosource: bad distribution data\n"); |
545 |
fclose(datout); |
546 |
unlink(fullname(buf,name,T_DST)); |
547 |
return(-1); |
548 |
} |
549 |
fclose(datout); |
550 |
fprintf(out, "# %g watt luminaire, lamp*ballast factor = %g\n", |
551 |
wattage, bfactor*pfactor); |
552 |
strcat(strcpy(id, filename(name)), "_dist"); |
553 |
fprintf(out, "\n%s brightdata %s\n", mod, id); |
554 |
if (nangles[1] < 2) |
555 |
fprintf(out, "4 "); |
556 |
else if (pmtype == PM_B) |
557 |
fprintf(out, "5 "); |
558 |
else if (FEQ(bounds[1][0],90.) && FEQ(bounds[1][1],270.)) |
559 |
fprintf(out, "8 "); |
560 |
else |
561 |
fprintf(out, "6 "); |
562 |
fprintf(out, "%s %s source.cal ", |
563 |
srcshape.type==SPHERE ? "corr" : "flatcorr", |
564 |
libname(buf,name,T_DST)); |
565 |
if (pmtype == PM_B) { |
566 |
if (FEQ(bounds[1][0],0.)) |
567 |
fprintf(out, "srcB_horiz2 "); |
568 |
else |
569 |
fprintf(out, "srcB_horiz "); |
570 |
fprintf(out, "srcB_vert "); |
571 |
} else { |
572 |
if (nangles[1] >= 2) { |
573 |
d1 = bounds[1][1] - bounds[1][0]; |
574 |
if (d1 <= 90.+FTINY) |
575 |
fprintf(out, "src_phi4 "); |
576 |
else if (d1 <= 180.+FTINY) |
577 |
fprintf(out, "src_phi2 "); |
578 |
else |
579 |
fprintf(out, "src_phi "); |
580 |
fprintf(out, "src_theta -my "); |
581 |
if (FEQ(bounds[1][0],90.) && FEQ(bounds[1][1],270.)) |
582 |
fprintf(out, "-rz -90 "); |
583 |
} else |
584 |
fprintf(out, "src_theta "); |
585 |
} |
586 |
fprintf(out, "\n0\n1 %g\n", multiplier*mult*bfactor*pfactor); |
587 |
if (putsource(&srcshape, out, id, filename(name), |
588 |
bounds[0][0]<90., bounds[0][1]>90.) != 0) |
589 |
return(-1); |
590 |
return(0); |
591 |
} |
592 |
|
593 |
|
594 |
putsource(shp, fp, mod, name, dolower, doupper) /* put out source */ |
595 |
SHAPE *shp; |
596 |
FILE *fp; |
597 |
char *mod, *name; |
598 |
int dolower, doupper; |
599 |
{ |
600 |
char buf[MAXWORD]; |
601 |
|
602 |
fprintf(fp, "\n%s %s %s_light\n", mod, |
603 |
illumrad>=MINDIM/2. ? "illum" : "light", |
604 |
name); |
605 |
fprintf(fp, "0\n0\n3 %g %g %g\n", |
606 |
lampcolor[0]/shp->area, |
607 |
lampcolor[1]/shp->area, |
608 |
lampcolor[2]/shp->area); |
609 |
if (doupper && dolower && shp->type != SPHERE && shp->h > MINDIM) { |
610 |
fprintf(fp, "\n%s glow %s_glow\n", mod, name); |
611 |
fprintf(fp, "0\n0\n4 %g %g %g -1\n", |
612 |
lampcolor[0]/shp->area, |
613 |
lampcolor[1]/shp->area, |
614 |
lampcolor[2]/shp->area); |
615 |
} |
616 |
switch (shp->type) { |
617 |
case RECT: |
618 |
strcat(strcpy(buf, name), "_light"); |
619 |
if (dolower) |
620 |
putrectsrc(shp, fp, buf, name, 0); |
621 |
if (doupper) |
622 |
putrectsrc(shp, fp, buf, name, 1); |
623 |
if (doupper && dolower && shp->h > MINDIM) { |
624 |
strcat(strcpy(buf, name), "_glow"); |
625 |
putsides(shp, fp, buf, name); |
626 |
} |
627 |
break; |
628 |
case DISK: |
629 |
strcat(strcpy(buf, name), "_light"); |
630 |
if (dolower) |
631 |
putdisksrc(shp, fp, buf, name, 0); |
632 |
if (doupper) |
633 |
putdisksrc(shp, fp, buf, name, 1); |
634 |
if (doupper && dolower && shp->h > MINDIM) { |
635 |
strcat(strcpy(buf, name), "_glow"); |
636 |
putcyl(shp, fp, buf, name); |
637 |
} |
638 |
break; |
639 |
case SPHERE: |
640 |
strcat(strcpy(buf, name), "_light"); |
641 |
putspheresrc(shp, fp, buf, name); |
642 |
break; |
643 |
} |
644 |
return(0); |
645 |
} |
646 |
|
647 |
|
648 |
makeshape(shp, width, length, height) /* make source shape */ |
649 |
register SHAPE *shp; |
650 |
double width, length, height; |
651 |
{ |
652 |
if (illumrad >= MINDIM/2.) { |
653 |
shp->type = SPHERE; |
654 |
shp->w = shp->l = shp->h = 2.*illumrad; |
655 |
} else if (width < MINDIM) { |
656 |
width = -width; |
657 |
if (width < MINDIM) { |
658 |
shp->type = SPHERE; |
659 |
shp->w = shp->l = shp->h = MINDIM; |
660 |
} else if (height < .5*width) { |
661 |
shp->type = DISK; |
662 |
shp->w = shp->l = width; |
663 |
if (height >= MINDIM) |
664 |
shp->h = height; |
665 |
else |
666 |
shp->h = .5*MINDIM; |
667 |
} else { |
668 |
shp->type = SPHERE; |
669 |
shp->w = shp->l = shp->h = width; |
670 |
} |
671 |
} else { |
672 |
shp->type = RECT; |
673 |
shp->w = width; |
674 |
if (length >= MINDIM) |
675 |
shp->l = length; |
676 |
else |
677 |
shp->l = MINDIM; |
678 |
if (height >= MINDIM) |
679 |
shp->h = height; |
680 |
else |
681 |
shp->h = .5*MINDIM; |
682 |
} |
683 |
switch (shp->type) { |
684 |
case RECT: |
685 |
shp->area = shp->w * shp->l; |
686 |
break; |
687 |
case DISK: |
688 |
case SPHERE: |
689 |
shp->area = PI/4. * shp->w * shp->w; |
690 |
break; |
691 |
} |
692 |
return(0); |
693 |
} |
694 |
|
695 |
|
696 |
putrectsrc(shp, fp, mod, name, up) /* rectangular source */ |
697 |
SHAPE *shp; |
698 |
FILE *fp; |
699 |
char *mod, *name; |
700 |
int up; |
701 |
{ |
702 |
if (up) |
703 |
putrect(shp, fp, mod, name, ".u", 4, 5, 7, 6); |
704 |
else |
705 |
putrect(shp, fp, mod, name, ".d", 0, 2, 3, 1); |
706 |
} |
707 |
|
708 |
|
709 |
putsides(shp, fp, mod, name) /* put out sides of box */ |
710 |
register SHAPE *shp; |
711 |
FILE *fp; |
712 |
char *mod, *name; |
713 |
{ |
714 |
putrect(shp, fp, mod, name, ".1", 0, 1, 5, 4); |
715 |
putrect(shp, fp, mod, name, ".2", 1, 3, 7, 5); |
716 |
putrect(shp, fp, mod, name, ".3", 3, 2, 6, 7); |
717 |
putrect(shp, fp, mod, name, ".4", 2, 0, 4, 6); |
718 |
} |
719 |
|
720 |
|
721 |
putrect(shp, fp, mod, name, suffix, a, b, c, d) /* put out a rectangle */ |
722 |
SHAPE *shp; |
723 |
FILE *fp; |
724 |
char *mod, *name, *suffix; |
725 |
int a, b, c, d; |
726 |
{ |
727 |
fprintf(fp, "\n%s polygon %s%s\n0\n0\n12\n", mod, name, suffix); |
728 |
putpoint(shp, fp, a); |
729 |
putpoint(shp, fp, b); |
730 |
putpoint(shp, fp, c); |
731 |
putpoint(shp, fp, d); |
732 |
} |
733 |
|
734 |
|
735 |
putpoint(shp, fp, p) /* put out a point */ |
736 |
register SHAPE *shp; |
737 |
FILE *fp; |
738 |
int p; |
739 |
{ |
740 |
static double mult[2] = {-.5, .5}; |
741 |
|
742 |
fprintf(fp, "\t%g\t%g\t%g\n", |
743 |
mult[p&1]*shp->l*meters2out, |
744 |
mult[p>>1&1]*shp->w*meters2out, |
745 |
mult[p>>2]*shp->h*meters2out); |
746 |
} |
747 |
|
748 |
|
749 |
putdisksrc(shp, fp, mod, name, up) /* put out a disk source */ |
750 |
register SHAPE *shp; |
751 |
FILE *fp; |
752 |
char *mod, *name; |
753 |
int up; |
754 |
{ |
755 |
if (up) { |
756 |
fprintf(fp, "\n%s ring %s.u\n", mod, name); |
757 |
fprintf(fp, "0\n0\n8\n"); |
758 |
fprintf(fp, "\t0 0 %g\n", .5*shp->h*meters2out); |
759 |
fprintf(fp, "\t0 0 1\n"); |
760 |
fprintf(fp, "\t0 %g\n", .5*shp->w*meters2out); |
761 |
} else { |
762 |
fprintf(fp, "\n%s ring %s.d\n", mod, name); |
763 |
fprintf(fp, "0\n0\n8\n"); |
764 |
fprintf(fp, "\t0 0 %g\n", -.5*shp->h*meters2out); |
765 |
fprintf(fp, "\t0 0 -1\n"); |
766 |
fprintf(fp, "\t0 %g\n", .5*shp->w*meters2out); |
767 |
} |
768 |
} |
769 |
|
770 |
|
771 |
putcyl(shp, fp, mod, name) /* put out a cylinder */ |
772 |
register SHAPE *shp; |
773 |
FILE *fp; |
774 |
char *mod, *name; |
775 |
{ |
776 |
fprintf(fp, "\n%s cylinder %s.c\n", mod, name); |
777 |
fprintf(fp, "0\n0\n7\n"); |
778 |
fprintf(fp, "\t0 0 %g\n", .5*shp->h*meters2out); |
779 |
fprintf(fp, "\t0 0 %g\n", -.5*shp->h*meters2out); |
780 |
fprintf(fp, "\t%g\n", .5*shp->w*meters2out); |
781 |
} |
782 |
|
783 |
|
784 |
putspheresrc(shp, fp, mod, name) /* put out a sphere source */ |
785 |
SHAPE *shp; |
786 |
FILE *fp; |
787 |
char *mod, *name; |
788 |
{ |
789 |
fprintf(fp, "\n%s sphere %s.s\n", mod, name); |
790 |
fprintf(fp, "0\n0\n4 0 0 0 %g\n", .5*shp->w*meters2out); |
791 |
} |
792 |
|
793 |
|
794 |
cvdata(in, out, ndim, npts, mult, lim) /* convert data */ |
795 |
FILE *in, *out; |
796 |
int ndim, npts[]; |
797 |
double mult, lim[][2]; |
798 |
{ |
799 |
double *pt[4]; |
800 |
register int i, j; |
801 |
double val; |
802 |
int total; |
803 |
|
804 |
total = 1; j = 0; |
805 |
for (i = 0; i < ndim; i++) |
806 |
if (npts[i] > 1) { |
807 |
total *= npts[i]; |
808 |
j++; |
809 |
} |
810 |
fprintf(out, "%d\n", j); |
811 |
/* get coordinates */ |
812 |
for (i = 0; i < ndim; i++) { |
813 |
pt[i] = (double *)malloc(npts[i]*sizeof(double)); |
814 |
for (j = 0; j < npts[i]; j++) |
815 |
fscanf(in, "%lf", &pt[i][j]); |
816 |
if (lim != NULL) { |
817 |
lim[i][0] = pt[i][0]; |
818 |
lim[i][1] = pt[i][npts[i]-1]; |
819 |
} |
820 |
} |
821 |
/* write out in reverse */ |
822 |
for (i = ndim-1; i >= 0; i--) { |
823 |
if (npts[i] > 1) { |
824 |
for (j = 1; j < npts[i]-1; j++) |
825 |
if (!FEQ(pt[i][j]-pt[i][j-1], |
826 |
pt[i][j+1]-pt[i][j])) |
827 |
break; |
828 |
if (j == npts[i]-1) |
829 |
fprintf(out, "%g %g %d\n", pt[i][0], pt[i][j], |
830 |
npts[i]); |
831 |
else { |
832 |
fprintf(out, "0 0 %d", npts[i]); |
833 |
for (j = 0; j < npts[i]; j++) { |
834 |
if (j%4 == 0) |
835 |
putc('\n', out); |
836 |
fprintf(out, "\t%g", pt[i][j]); |
837 |
} |
838 |
putc('\n', out); |
839 |
} |
840 |
} |
841 |
free((char *)pt[i]); |
842 |
} |
843 |
for (i = 0; i < total; i++) { |
844 |
if (i%4 == 0) |
845 |
putc('\n', out); |
846 |
if (fscanf(in, "%lf", &val) != 1) |
847 |
return(-1); |
848 |
fprintf(out, "\t%g", val*mult); |
849 |
} |
850 |
putc('\n', out); |
851 |
return(0); |
852 |
} |