1 |
/* Copyright (c) 1990 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 |
|
16 |
#define PI 3.14159265358979323846 |
17 |
/* floating comparisons */ |
18 |
#define FTINY 1e-6 |
19 |
#define FEQ(a,b) ((a)<=(b)+FTINY&&(a)>=(b)-FTINY) |
20 |
/* tilt specs */ |
21 |
#define TLTSTR "TILT=" |
22 |
#define TLTSTRLEN 5 |
23 |
#define TLTNONE "NONE" |
24 |
#define TLTINCL "INCLUDE" |
25 |
#define TLT_VERT 1 |
26 |
#define TLT_H0 2 |
27 |
#define TLT_H90 3 |
28 |
/* photometric types */ |
29 |
#define PM_C 1 |
30 |
#define PM_B 2 |
31 |
/* unit types */ |
32 |
#define U_FEET 1 |
33 |
#define U_METERS 2 |
34 |
/* string lengths */ |
35 |
#define MAXLINE 132 |
36 |
#define MAXWORD 76 |
37 |
#define MAXPATH 128 |
38 |
/* file types */ |
39 |
#define T_RAD ".rad" |
40 |
#define T_DST ".dat" |
41 |
#define T_TLT "+.dat" |
42 |
/* shape types */ |
43 |
#define RECT 1 |
44 |
#define DISK 2 |
45 |
#define SPHERE 3 |
46 |
|
47 |
#define MINDIM .001 /* minimum dimension (point source) */ |
48 |
|
49 |
#define F_M .3048 /* feet to meters */ |
50 |
|
51 |
#define abspath(p) ((p)[0] == '/' || (p)[0] == '.') |
52 |
|
53 |
char *libdir = NULL; /* library directory location */ |
54 |
char *prefdir = NULL; /* subdirectory */ |
55 |
char *lampdat = "lamp.tab"; /* lamp data file */ |
56 |
|
57 |
double meters2out = 1.0; /* conversion from meters to output */ |
58 |
char *lamptype = NULL; /* selected lamp type */ |
59 |
float *lampcolor = NULL; /* pointer to lamp color */ |
60 |
float defcolor[3] = {1.,1.,1.}; /* default lamp color */ |
61 |
double multiplier = 1.0; /* multiplier for all light sources */ |
62 |
char units[64] = "meters"; /* output units */ |
63 |
double minaspect = 0.0; /* minimum allowed aspect ratio */ |
64 |
int maxemitters = 1; /* maximum emitters per hemisphere */ |
65 |
double illumrad = 0.0; /* radius for illum sphere */ |
66 |
|
67 |
typedef struct { |
68 |
int type; /* RECT, DISK, SPHERE */ |
69 |
double w, l, h; /* width, length, height */ |
70 |
double area; /* effective radiating area */ |
71 |
} SHAPE; /* a source shape */ |
72 |
|
73 |
int gargc; /* global argc (minus filenames) */ |
74 |
char **gargv; /* global argv */ |
75 |
|
76 |
extern char *strcpy(), *strcat(), *stradd(), *tailtrunc(), *filetrunc(), |
77 |
*filename(), *libname(), *fullname(), *malloc(); |
78 |
extern double atof(); |
79 |
extern float *matchlamp(); |
80 |
|
81 |
|
82 |
main(argc, argv) |
83 |
int argc; |
84 |
char *argv[]; |
85 |
{ |
86 |
char *outfile = NULL; |
87 |
int status; |
88 |
char outname[MAXWORD]; |
89 |
double d1; |
90 |
int i; |
91 |
|
92 |
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
93 |
switch (argv[i][1]) { |
94 |
case 'd': /* dimensions */ |
95 |
if (argv[i][2] == '\0') |
96 |
goto badopt; |
97 |
if (argv[i][3] == '\0') |
98 |
d1 = 1.0; |
99 |
else if (argv[i][3] == '/') { |
100 |
d1 = atof(argv[i]+4); |
101 |
if (d1 <= FTINY) |
102 |
goto badopt; |
103 |
} else |
104 |
goto badopt; |
105 |
switch (argv[i][2]) { |
106 |
case 'c': /* centimeters */ |
107 |
if (FEQ(d1,10.)) |
108 |
strcpy(units,"millimeters"); |
109 |
else { |
110 |
strcpy(units,"centimeters"); |
111 |
strcat(units,argv[i]+3); |
112 |
} |
113 |
meters2out = 100.*d1; |
114 |
break; |
115 |
case 'm': /* meters */ |
116 |
if (FEQ(d1,1000.)) |
117 |
strcpy(units,"millimeters"); |
118 |
else if (FEQ(d1,100.)) |
119 |
strcpy(units,"centimeters"); |
120 |
else { |
121 |
strcpy(units,"meters"); |
122 |
strcat(units,argv[i]+3); |
123 |
} |
124 |
meters2out = d1; |
125 |
break; |
126 |
case 'i': /* inches */ |
127 |
strcpy(units,"inches"); |
128 |
strcat(units,argv[i]+3); |
129 |
meters2out = d1*(12./F_M); |
130 |
break; |
131 |
case 'f': /* feet */ |
132 |
if (FEQ(d1,12.)) |
133 |
strcpy(units,"inches"); |
134 |
else { |
135 |
strcpy(units,"feet"); |
136 |
strcat(units,argv[i]+3); |
137 |
} |
138 |
meters2out = d1/F_M; |
139 |
break; |
140 |
default: |
141 |
goto badopt; |
142 |
} |
143 |
break; |
144 |
case 'l': /* library directory */ |
145 |
libdir = argv[++i]; |
146 |
break; |
147 |
case 'p': /* prefix subdirectory */ |
148 |
prefdir = argv[++i]; |
149 |
break; |
150 |
case 'f': /* lamp data file */ |
151 |
lampdat = argv[++i]; |
152 |
break; |
153 |
case 'o': /* output file name */ |
154 |
outfile = argv[++i]; |
155 |
break; |
156 |
case 's': /* square emitters */ |
157 |
minaspect = .6; |
158 |
if (argv[i][2] == '/') { |
159 |
maxemitters = atoi(argv[i]+3); |
160 |
if (maxemitters < 1) |
161 |
goto badopt; |
162 |
} |
163 |
break; |
164 |
case 'i': /* illum */ |
165 |
illumrad = atof(argv[++i]); |
166 |
if (illumrad < MINDIM) |
167 |
illumrad = MINDIM; |
168 |
break; |
169 |
case 't': /* select lamp type */ |
170 |
lamptype = argv[++i]; |
171 |
break; |
172 |
case 'c': /* default lamp color */ |
173 |
defcolor[0] = atof(argv[++i]); |
174 |
defcolor[1] = atof(argv[++i]); |
175 |
defcolor[2] = atof(argv[++i]); |
176 |
break; |
177 |
case 'm': /* multiplier */ |
178 |
multiplier = atof(argv[++i]); |
179 |
break; |
180 |
default: |
181 |
badopt: |
182 |
fprintf(stderr, "%s: bad option: %s\n", |
183 |
argv[0], argv[i]); |
184 |
exit(1); |
185 |
} |
186 |
gargc = i; |
187 |
gargv = argv; |
188 |
/* get lamp data */ |
189 |
if ((status = loadlamps(lampdat)) < 0) |
190 |
exit(1); |
191 |
if (status == 0 || (lamptype != NULL && |
192 |
(lampcolor = matchlamp(lamptype)) == NULL)) { |
193 |
lampcolor = defcolor; |
194 |
fprintf(stderr, "%s: warning - no lamp data\n", argv[0]); |
195 |
} |
196 |
/* convert ies file(s) */ |
197 |
if (outfile != NULL) { |
198 |
if (i == argc) |
199 |
exit(ies2rad(NULL, outfile) == 0 ? 0 : 1); |
200 |
else if (i == argc-1) |
201 |
exit(ies2rad(argv[i], outfile) == 0 ? 0 : 1); |
202 |
else { |
203 |
fprintf(stderr, "%s: single input file required\n", |
204 |
argv[0]); |
205 |
exit(1); |
206 |
} |
207 |
} else if (i >= argc) { |
208 |
fprintf(stderr, "%s: missing output file specification\n", |
209 |
argv[0]); |
210 |
exit(1); |
211 |
} |
212 |
status = 0; |
213 |
for ( ; i < argc; i++) { |
214 |
tailtrunc(strcpy(outname,filename(argv[i]))); |
215 |
if (ies2rad(argv[i], outname) != 0) |
216 |
status = 1; |
217 |
} |
218 |
exit(status); |
219 |
} |
220 |
|
221 |
|
222 |
char * |
223 |
stradd(dst, src, sep) /* add a string at dst */ |
224 |
register char *dst, *src; |
225 |
int sep; |
226 |
{ |
227 |
if (src && *src) { |
228 |
do |
229 |
*dst++ = *src++; |
230 |
while (*src); |
231 |
if (sep && dst[-1] != sep) |
232 |
*dst++ = sep; |
233 |
} |
234 |
*dst = '\0'; |
235 |
return(dst); |
236 |
} |
237 |
|
238 |
|
239 |
char * |
240 |
fullname(path, fname, suffix) /* return full path name */ |
241 |
char *path, *fname, *suffix; |
242 |
{ |
243 |
if (prefdir != NULL && abspath(prefdir)) |
244 |
libname(path, fname, suffix); |
245 |
else if (abspath(fname)) |
246 |
strcpy(stradd(path, fname, 0), suffix); |
247 |
else |
248 |
libname(stradd(path, libdir, '/'), fname, suffix); |
249 |
|
250 |
return(path); |
251 |
} |
252 |
|
253 |
|
254 |
char * |
255 |
libname(path, fname, suffix) /* return library relative name */ |
256 |
char *path, *fname, *suffix; |
257 |
{ |
258 |
if (abspath(fname)) |
259 |
strcpy(stradd(path, fname, 0), suffix); |
260 |
else |
261 |
strcpy(stradd(stradd(path, prefdir, '/'), fname, 0), suffix); |
262 |
|
263 |
return(path); |
264 |
} |
265 |
|
266 |
|
267 |
char * |
268 |
filename(path) /* get final component of pathname */ |
269 |
register char *path; |
270 |
{ |
271 |
register char *cp; |
272 |
|
273 |
for (cp = path; *path; path++) |
274 |
if (*path == '/') |
275 |
cp = path+1; |
276 |
return(cp); |
277 |
} |
278 |
|
279 |
|
280 |
char * |
281 |
filetrunc(path) /* truncate filename at end of path */ |
282 |
char *path; |
283 |
{ |
284 |
register char *p1, *p2; |
285 |
|
286 |
for (p1 = p2 = path; *p2; p2++) |
287 |
if (*p2 == '/') |
288 |
p1 = p2; |
289 |
*p1 = '\0'; |
290 |
return(path); |
291 |
} |
292 |
|
293 |
|
294 |
char * |
295 |
tailtrunc(name) /* truncate tail of filename */ |
296 |
char *name; |
297 |
{ |
298 |
register char *p1, *p2; |
299 |
|
300 |
for (p1 = filename(name); *p1 == '.'; p1++) |
301 |
; |
302 |
p2 = NULL; |
303 |
for ( ; *p1; p1++) |
304 |
if (*p1 == '.') |
305 |
p2 = p1; |
306 |
if (p2 != NULL) |
307 |
*p2 = '\0'; |
308 |
return(name); |
309 |
} |
310 |
|
311 |
|
312 |
blanktrunc(s) /* truncate spaces at end of line */ |
313 |
char *s; |
314 |
{ |
315 |
register char *cp; |
316 |
|
317 |
for (cp = s; *cp; cp++) |
318 |
; |
319 |
while (cp-- > s && isspace(*cp)) |
320 |
; |
321 |
*++cp = '\0'; |
322 |
} |
323 |
|
324 |
|
325 |
putheader(out) /* print header */ |
326 |
FILE *out; |
327 |
{ |
328 |
register int i; |
329 |
|
330 |
putc('#', out); |
331 |
for (i = 0; i < gargc; i++) { |
332 |
putc(' ', out); |
333 |
fputs(gargv[i], out); |
334 |
} |
335 |
fputs("\n# Dimensions in ", out); |
336 |
fputs(units, out); |
337 |
putc('\n', out); |
338 |
} |
339 |
|
340 |
|
341 |
ies2rad(inpname, outname) /* convert IES file */ |
342 |
char *inpname, *outname; |
343 |
{ |
344 |
char buf[MAXLINE], tltid[MAXWORD]; |
345 |
FILE *inpfp, *outfp; |
346 |
|
347 |
if (inpname == NULL) { |
348 |
inpname = "<stdin>"; |
349 |
inpfp = stdin; |
350 |
} else if ((inpfp = fopen(inpname, "r")) == NULL) { |
351 |
perror(inpname); |
352 |
return(-1); |
353 |
} |
354 |
if ((outfp = fopen(fullname(buf,outname,T_RAD), "w")) == NULL) { |
355 |
perror(buf); |
356 |
fclose(inpfp); |
357 |
return(-1); |
358 |
} |
359 |
putheader(outfp); |
360 |
if (lamptype == NULL) |
361 |
lampcolor = NULL; |
362 |
while (fgets(buf,sizeof(buf),inpfp) != NULL |
363 |
&& strncmp(buf,TLTSTR,TLTSTRLEN)) { |
364 |
blanktrunc(buf); |
365 |
if (!buf[0]) |
366 |
continue; |
367 |
fputs("#<", outfp); |
368 |
fputs(buf, outfp); |
369 |
putc('\n', outfp); |
370 |
if (lampcolor == NULL) |
371 |
lampcolor = matchlamp(buf); |
372 |
} |
373 |
if (lampcolor == NULL) { |
374 |
fprintf(stderr, "%s: warning - no lamp type\n", inpname); |
375 |
lampcolor = defcolor; |
376 |
} |
377 |
if (feof(inpfp)) { |
378 |
fprintf(stderr, "%s: not in IES format\n", inpname); |
379 |
goto readerr; |
380 |
} |
381 |
sscanf(buf+TLTSTRLEN, "%s", tltid); |
382 |
if (inpfp == stdin) |
383 |
buf[0] = '\0'; |
384 |
else |
385 |
filetrunc(strcpy(buf, inpname)); |
386 |
if (dotilt(inpfp, outfp, buf, tltid, outname, tltid) != 0) { |
387 |
fprintf(stderr, "%s: bad tilt data\n", inpname); |
388 |
goto readerr; |
389 |
} |
390 |
if (dosource(inpfp, outfp, tltid, outname) != 0) { |
391 |
fprintf(stderr, "%s: bad luminaire data\n", inpname); |
392 |
goto readerr; |
393 |
} |
394 |
fclose(outfp); |
395 |
fclose(inpfp); |
396 |
return(0); |
397 |
readerr: |
398 |
fclose(outfp); |
399 |
fclose(inpfp); |
400 |
unlink(fullname(buf,outname,T_RAD)); |
401 |
return(-1); |
402 |
} |
403 |
|
404 |
|
405 |
dotilt(in, out, dir, tltspec, dfltname, tltid) /* convert tilt data */ |
406 |
FILE *in, *out; |
407 |
char *dir, *tltspec, *dfltname, *tltid; |
408 |
{ |
409 |
int nangles, tlt_type; |
410 |
double minmax[2]; |
411 |
char buf[MAXPATH], tltname[MAXWORD]; |
412 |
FILE *datin, *datout; |
413 |
|
414 |
if (!strcmp(tltspec, TLTNONE)) { |
415 |
datin = NULL; |
416 |
strcpy(tltid, "void"); |
417 |
} else if (!strcmp(tltspec, TLTINCL)) { |
418 |
datin = in; |
419 |
strcpy(tltname, dfltname); |
420 |
} else { |
421 |
if (tltspec[0] == '/') |
422 |
strcpy(buf, tltspec); |
423 |
else |
424 |
strcpy(stradd(buf, dir, '/'), tltspec); |
425 |
if ((datin = fopen(buf, "r")) == NULL) { |
426 |
perror(buf); |
427 |
return(-1); |
428 |
} |
429 |
tailtrunc(strcpy(tltname,filename(tltspec))); |
430 |
} |
431 |
if (datin != NULL) { |
432 |
if ((datout = fopen(fullname(buf,tltname,T_TLT),"w")) == NULL) { |
433 |
perror(buf); |
434 |
if (datin != in) |
435 |
fclose(datin); |
436 |
return(-1); |
437 |
} |
438 |
if (fscanf(datin, "%d %d", &tlt_type, &nangles) != 2 |
439 |
|| cvdata(datin,datout,1,&nangles,1.,minmax) != 0) { |
440 |
fprintf(stderr, "%s: data format error\n", tltspec); |
441 |
fclose(datout); |
442 |
if (datin != in) |
443 |
fclose(datin); |
444 |
unlink(fullname(buf,tltname,T_TLT)); |
445 |
return(-1); |
446 |
} |
447 |
fclose(datout); |
448 |
if (datin != in) |
449 |
fclose(datin); |
450 |
strcat(strcpy(tltid, filename(tltname)), "_tilt"); |
451 |
fprintf(out, "\nvoid brightdata %s\n", tltid); |
452 |
libname(buf,tltname,T_TLT); |
453 |
switch (tlt_type) { |
454 |
case TLT_VERT: /* vertical */ |
455 |
fprintf(out, "4 noop %s tilt.cal %s\n", buf, |
456 |
minmax[1]>90.+FTINY ? "tilt_ang" : "tilt_ang2"); |
457 |
break; |
458 |
case TLT_H0: /* horiz. in 0 deg. plane */ |
459 |
fprintf(out, "6 noop %s tilt.cal %s -rz 90\n", buf, |
460 |
minmax[1]>90.+FTINY ? "tilt_xang" : "tilt_xang2"); |
461 |
break; |
462 |
case TLT_H90: |
463 |
fprintf(out, "4 noop %s tilt.cal %s\n", buf, |
464 |
minmax[1]>90.+FTINY ? "tilt_xang" : "tilt_xang2"); |
465 |
break; |
466 |
default: |
467 |
fprintf(stderr, |
468 |
"%s: illegal lamp to luminaire geometry (%d)\n", |
469 |
tltspec, tlt_type); |
470 |
return(-1); |
471 |
} |
472 |
fprintf(out, "0\n0\n"); |
473 |
} |
474 |
return(0); |
475 |
} |
476 |
|
477 |
|
478 |
dosource(in, out, mod, name) /* create source and distribution */ |
479 |
FILE *in, *out; |
480 |
char *mod, *name; |
481 |
{ |
482 |
SHAPE srcshape; |
483 |
char buf[MAXPATH], id[MAXWORD]; |
484 |
FILE *datout; |
485 |
double mult, bfactor, pfactor, width, length, height, wattage; |
486 |
double bounds[2][2]; |
487 |
int nangles[2], pmtype, unitype; |
488 |
double d1; |
489 |
|
490 |
if (fscanf(in, "%*d %*f %lf %d %d %d %d %lf %lf %lf %lf %lf %lf", |
491 |
&mult, &nangles[0], &nangles[1], &pmtype, &unitype, |
492 |
&width, &length, &height, &bfactor, &pfactor, |
493 |
&wattage) != 11) { |
494 |
fprintf(stderr, "dosource: bad lamp specification\n"); |
495 |
return(-1); |
496 |
} |
497 |
if (nangles[0] < 2 || nangles[1] < 1) { |
498 |
fprintf(stderr, "dosource: too few measured angles\n"); |
499 |
return(-1); |
500 |
} |
501 |
if (unitype == U_FEET) { |
502 |
width *= F_M; |
503 |
length *= F_M; |
504 |
height *= F_M; |
505 |
} |
506 |
if (makeshape(&srcshape, width, length, height) != 0) { |
507 |
fprintf(stderr, "dosource: illegal source dimensions"); |
508 |
return(-1); |
509 |
} |
510 |
if ((datout = fopen(fullname(buf,name,T_DST), "w")) == NULL) { |
511 |
perror(buf); |
512 |
return(-1); |
513 |
} |
514 |
if (cvdata(in, datout, 2, nangles, 1./683., bounds) != 0) { |
515 |
fprintf(stderr, "dosource: bad distribution data\n"); |
516 |
fclose(datout); |
517 |
unlink(fullname(buf,name,T_DST)); |
518 |
return(-1); |
519 |
} |
520 |
fclose(datout); |
521 |
fprintf(out, "# %g watt luminaire, lamp*ballast factor = %g\n", |
522 |
wattage, bfactor*pfactor); |
523 |
strcat(strcpy(id, filename(name)), "_dist"); |
524 |
fprintf(out, "\n%s brightdata %s\n", mod, id); |
525 |
if (nangles[1] < 2) |
526 |
fprintf(out, "4 "); |
527 |
else if (pmtype == PM_B) |
528 |
fprintf(out, "5 "); |
529 |
else if (FEQ(bounds[1][0],90.) && FEQ(bounds[1][1],270.)) |
530 |
fprintf(out, "8 "); |
531 |
else |
532 |
fprintf(out, "6 "); |
533 |
fprintf(out, "%s %s source.cal ", |
534 |
srcshape.type==SPHERE ? "corr" : "flatcorr", |
535 |
libname(buf,name,T_DST)); |
536 |
if (pmtype == PM_B) { |
537 |
if (FEQ(bounds[1][0],0.)) |
538 |
fprintf(out, "srcB_horiz2 "); |
539 |
else |
540 |
fprintf(out, "srcB_horiz "); |
541 |
fprintf(out, "srcB_vert "); |
542 |
} else { |
543 |
if (nangles[1] >= 2) { |
544 |
d1 = bounds[1][1] - bounds[1][0]; |
545 |
if (d1 <= 90.+FTINY) |
546 |
fprintf(out, "src_phi4 "); |
547 |
else if (d1 <= 180.+FTINY) |
548 |
fprintf(out, "src_phi2 "); |
549 |
else |
550 |
fprintf(out, "src_phi "); |
551 |
fprintf(out, "src_theta -my "); |
552 |
if (FEQ(bounds[1][0],90.) && FEQ(bounds[1][1],270.)) |
553 |
fprintf(out, "-rz -90 "); |
554 |
} else |
555 |
fprintf(out, "src_theta "); |
556 |
} |
557 |
fprintf(out, "\n0\n1 %g\n", multiplier*mult*bfactor*pfactor); |
558 |
if (putsource(&srcshape, out, id, filename(name), |
559 |
bounds[0][0]<90., bounds[0][1]>90.) != 0) |
560 |
return(-1); |
561 |
return(0); |
562 |
} |
563 |
|
564 |
|
565 |
putsource(shp, fp, mod, name, dolower, doupper) /* put out source */ |
566 |
SHAPE *shp; |
567 |
FILE *fp; |
568 |
char *mod, *name; |
569 |
int dolower, doupper; |
570 |
{ |
571 |
char buf[MAXWORD]; |
572 |
|
573 |
fprintf(fp, "\n%s %s %s_light\n", mod, |
574 |
illumrad>=MINDIM/2. ? "illum" : "light", |
575 |
name); |
576 |
fprintf(fp, "0\n0\n3 %g %g %g\n", |
577 |
lampcolor[0]/shp->area, |
578 |
lampcolor[1]/shp->area, |
579 |
lampcolor[2]/shp->area); |
580 |
if (doupper && dolower && shp->type != SPHERE && shp->h > MINDIM) { |
581 |
fprintf(fp, "\n%s glow %s_glow\n", mod, name); |
582 |
fprintf(fp, "0\n0\n4 %g %g %g 0\n", |
583 |
lampcolor[0]/shp->area, |
584 |
lampcolor[1]/shp->area, |
585 |
lampcolor[2]/shp->area); |
586 |
} |
587 |
switch (shp->type) { |
588 |
case RECT: |
589 |
strcat(strcpy(buf, name), "_light"); |
590 |
if (dolower) |
591 |
putrectsrc(shp, fp, buf, name, 0); |
592 |
if (doupper) |
593 |
putrectsrc(shp, fp, buf, name, 1); |
594 |
if (doupper && dolower && shp->h > MINDIM) { |
595 |
strcat(strcpy(buf, name), "_glow"); |
596 |
putsides(shp, fp, buf, name); |
597 |
} |
598 |
break; |
599 |
case DISK: |
600 |
strcat(strcpy(buf, name), "_light"); |
601 |
if (dolower) |
602 |
putdisksrc(shp, fp, buf, name, 0); |
603 |
if (doupper) |
604 |
putdisksrc(shp, fp, buf, name, 1); |
605 |
if (doupper && dolower && shp->h > MINDIM) { |
606 |
strcat(strcpy(buf, name), "_glow"); |
607 |
putcyl(shp, fp, buf, name); |
608 |
} |
609 |
break; |
610 |
case SPHERE: |
611 |
strcat(strcpy(buf, name), "_light"); |
612 |
putspheresrc(shp, fp, buf, name); |
613 |
break; |
614 |
} |
615 |
return(0); |
616 |
} |
617 |
|
618 |
|
619 |
makeshape(shp, width, length, height) /* make source shape */ |
620 |
register SHAPE *shp; |
621 |
double width, length, height; |
622 |
{ |
623 |
if (illumrad >= MINDIM/2.) { |
624 |
shp->type = SPHERE; |
625 |
shp->w = shp->l = shp->h = 2.*illumrad; |
626 |
} else if (width < MINDIM) { |
627 |
width = -width; |
628 |
if (width < MINDIM) { |
629 |
shp->type = SPHERE; |
630 |
shp->w = shp->l = shp->h = MINDIM; |
631 |
} else if (height < .5*width) { |
632 |
shp->type = DISK; |
633 |
shp->w = shp->l = width; |
634 |
if (height >= MINDIM) |
635 |
shp->h = height; |
636 |
else |
637 |
shp->h = .5*MINDIM; |
638 |
} else { |
639 |
shp->type = SPHERE; |
640 |
shp->w = shp->l = shp->h = width; |
641 |
} |
642 |
} else { |
643 |
shp->type = RECT; |
644 |
shp->w = width; |
645 |
if (length >= MINDIM) |
646 |
shp->l = length; |
647 |
else |
648 |
shp->l = MINDIM; |
649 |
if (height >= MINDIM) |
650 |
shp->h = height; |
651 |
else |
652 |
shp->h = .5*MINDIM; |
653 |
} |
654 |
switch (shp->type) { |
655 |
case RECT: |
656 |
shp->area = shp->w * shp->l; |
657 |
break; |
658 |
case DISK: |
659 |
shp->area = PI/4. * shp->w * shp->w; |
660 |
break; |
661 |
case SPHERE: |
662 |
shp->area = PI * shp->w * shp->w; |
663 |
break; |
664 |
} |
665 |
return(0); |
666 |
} |
667 |
|
668 |
|
669 |
putrectsrc(shp, fp, mod, name, up) /* rectangular source */ |
670 |
SHAPE *shp; |
671 |
FILE *fp; |
672 |
char *mod, *name; |
673 |
int up; |
674 |
{ |
675 |
if (up) |
676 |
putrect(shp, fp, mod, name, ".u", 4, 5, 7, 6); |
677 |
else |
678 |
putrect(shp, fp, mod, name, ".d", 0, 2, 3, 1); |
679 |
} |
680 |
|
681 |
|
682 |
putsides(shp, fp, mod, name) /* put out sides of box */ |
683 |
register SHAPE *shp; |
684 |
FILE *fp; |
685 |
char *mod, *name; |
686 |
{ |
687 |
putrect(shp, fp, mod, name, ".1", 0, 1, 5, 4); |
688 |
putrect(shp, fp, mod, name, ".2", 1, 3, 7, 5); |
689 |
putrect(shp, fp, mod, name, ".3", 3, 2, 6, 7); |
690 |
putrect(shp, fp, mod, name, ".4", 2, 0, 4, 6); |
691 |
} |
692 |
|
693 |
|
694 |
putrect(shp, fp, mod, name, suffix, a, b, c, d) /* put out a rectangle */ |
695 |
SHAPE *shp; |
696 |
FILE *fp; |
697 |
char *mod, *name, *suffix; |
698 |
int a, b, c, d; |
699 |
{ |
700 |
fprintf(fp, "\n%s polygon %s%s\n0\n0\n12\n", mod, name, suffix); |
701 |
putpoint(shp, fp, a); |
702 |
putpoint(shp, fp, b); |
703 |
putpoint(shp, fp, c); |
704 |
putpoint(shp, fp, d); |
705 |
} |
706 |
|
707 |
|
708 |
putpoint(shp, fp, p) /* put out a point */ |
709 |
register SHAPE *shp; |
710 |
FILE *fp; |
711 |
int p; |
712 |
{ |
713 |
static double mult[2] = {-.5, .5}; |
714 |
|
715 |
fprintf(fp, "\t%g\t%g\t%g\n", |
716 |
mult[p&1]*shp->l*meters2out, |
717 |
mult[p>>1&1]*shp->w*meters2out, |
718 |
mult[p>>2]*shp->h*meters2out); |
719 |
} |
720 |
|
721 |
|
722 |
putdisksrc(shp, fp, mod, name, up) /* put out a disk source */ |
723 |
register SHAPE *shp; |
724 |
FILE *fp; |
725 |
char *mod, *name; |
726 |
int up; |
727 |
{ |
728 |
if (up) { |
729 |
fprintf(fp, "\n%s ring %s.u\n", mod, name); |
730 |
fprintf(fp, "0\n0\n8\n"); |
731 |
fprintf(fp, "\t0 0 %g\n", .5*shp->h*meters2out); |
732 |
fprintf(fp, "\t0 0 1\n"); |
733 |
fprintf(fp, "\t0 %g\n", .5*shp->w*meters2out); |
734 |
} else { |
735 |
fprintf(fp, "\n%s ring %s.d\n", mod, name); |
736 |
fprintf(fp, "0\n0\n8\n"); |
737 |
fprintf(fp, "\t0 0 %g\n", -.5*shp->h*meters2out); |
738 |
fprintf(fp, "\t0 0 -1\n"); |
739 |
fprintf(fp, "\t0 %g\n", .5*shp->w*meters2out); |
740 |
} |
741 |
} |
742 |
|
743 |
|
744 |
putcyl(shp, fp, mod, name) /* put out a cylinder */ |
745 |
register SHAPE *shp; |
746 |
FILE *fp; |
747 |
char *mod, *name; |
748 |
{ |
749 |
fprintf(fp, "\n%s cylinder %s.c\n", mod, name); |
750 |
fprintf(fp, "0\n0\n7\n"); |
751 |
fprintf(fp, "\t0 0 %g\n", .5*shp->h*meters2out); |
752 |
fprintf(fp, "\t0 0 %g\n", -.5*shp->h*meters2out); |
753 |
fprintf(fp, "\t%g\n", .5*shp->w*meters2out); |
754 |
} |
755 |
|
756 |
|
757 |
putspheresrc(shp, fp, mod, name) /* put out a sphere source */ |
758 |
SHAPE *shp; |
759 |
FILE *fp; |
760 |
char *mod, *name; |
761 |
{ |
762 |
fprintf(fp, "\n%s sphere %s.s\n", mod, name); |
763 |
fprintf(fp, "0\n0\n4 0 0 0 %g\n", .5*shp->w*meters2out); |
764 |
} |
765 |
|
766 |
|
767 |
cvdata(in, out, ndim, npts, mult, lim) /* convert data */ |
768 |
FILE *in, *out; |
769 |
int ndim, npts[]; |
770 |
double mult, lim[][2]; |
771 |
{ |
772 |
register double *pt[4]; |
773 |
register int i, j; |
774 |
double val; |
775 |
int total; |
776 |
|
777 |
total = 1; j = 0; |
778 |
for (i = 0; i < ndim; i++) |
779 |
if (npts[i] > 1) { |
780 |
total *= npts[i]; |
781 |
j++; |
782 |
} |
783 |
fprintf(out, "%d\n", j); |
784 |
/* get coordinates */ |
785 |
for (i = 0; i < ndim; i++) { |
786 |
pt[i] = (double *)malloc(npts[i]*sizeof(double)); |
787 |
for (j = 0; j < npts[i]; j++) |
788 |
fscanf(in, "%lf", &pt[i][j]); |
789 |
if (lim != NULL) { |
790 |
lim[i][0] = pt[i][0]; |
791 |
lim[i][1] = pt[i][npts[i]-1]; |
792 |
} |
793 |
} |
794 |
/* write out in reverse */ |
795 |
for (i = ndim-1; i >= 0; i--) { |
796 |
if (npts[i] > 1) { |
797 |
for (j = 1; j < npts[i]-1; j++) |
798 |
if (!FEQ(pt[i][j]-pt[i][j-1], |
799 |
pt[i][j+1]-pt[i][j])) |
800 |
break; |
801 |
if (j == npts[i]-1) |
802 |
fprintf(out, "%g %g %d\n", pt[i][0], pt[i][j], |
803 |
npts[i]); |
804 |
else { |
805 |
fprintf(out, "0 0 %d", npts[i]); |
806 |
for (j = 0; j < npts[i]; j++) { |
807 |
if (j%4 == 0) |
808 |
putc('\n', out); |
809 |
fprintf(out, "\t%g", pt[i][j]); |
810 |
} |
811 |
putc('\n', out); |
812 |
} |
813 |
} |
814 |
free((char *)pt[i]); |
815 |
} |
816 |
for (i = 0; i < total; i++) { |
817 |
if (i%4 == 0) |
818 |
putc('\n', out); |
819 |
if (fscanf(in, "%lf", &val) != 1) |
820 |
return(-1); |
821 |
fprintf(out, "\t%g", val*mult); |
822 |
} |
823 |
putc('\n', out); |
824 |
return(0); |
825 |
} |