1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
|
/* Illuminant measurement utility */
/*
* Argyll Color Correction System
* Author: Graeme W. Gill
* Date: 3/10/2001
*
* Derived from printread.c/chartread.c
* Was called printspot.
*
* Copyright 2001 - 2013 Graeme W. Gill
* All rights reserved.
*
* This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :-
* see the License.txt file for licencing details.
*/
/* This program uses an instrument capable of spectral illuminant/emissive */
/* and reflective (non-UV filtered) measurement, to measure an illuminant */
/* spectrum that includes a UV estimate. */
/* Based on spotread.c */
/*
TTBD:
Should add support for converting Spyder correction readings to ccmx.
(see SpyderDeviceCorrections.txt)
*/
#define DEBUG /* Save measurements and restore them to outname_X.sp */
/*
outname_i.sp Illuminant spectrum
outname_r.sp Illuminant off paper spectrum
outname_p.sp Instrument measured paper reflectance spectrum
outname_mpir.sp Measured paper under illuminant spectrum
outname_cpir.sp Computed paper under illuminant spectrum
*/
#undef SHOWDXX /* Plot the best matched daylight as well */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <sys/types.h>
#include <time.h>
#include <string.h>
#include "copyright.h"
#include "aconfig.h"
#include "numlib.h"
#include "cgats.h"
#include "xicc.h"
#include "conv.h"
#include "inst.h"
#include "icoms.h"
#include "instappsup.h"
#include "plot.h"
#include "spyd2setup.h" /* Enable Spyder 2 access */
#include <stdarg.h>
#if defined (NT)
#include <conio.h>
#endif
/* Deal with an instrument error. */
/* Return 0 to retry, 1 to abort */
static int ierror(inst *it, inst_code ic) {
int ch;
empty_con_chars();
printf("Got '%s' (%s) error.\nHit Esc or Q to give up, any other key to retry:",
it->inst_interp_error(it, ic), it->interp_error(it, ic));
fflush(stdout);
ch = next_con_char();
printf("\n");
if (ch == 0x03 || ch == 0x1b || ch == 'q' || ch == 'Q') /* Escape, ^C or Q */
return 1;
return 0;
}
#if defined(__APPLE__) && defined(__POWERPC__)
/* Workaround for a ppc gcc 3.3 optimiser bug... */
static int gcc_bug_fix(int i) {
static int nn;
nn += i;
return nn;
}
#define GCC_BUGFIX(XX) gcc_bug_fix(XX);
#else /* !APPLE */
#define GCC_BUGFIX(XX)
#endif /* !APPLE */
/* ============================================================== */
/* optimizer callback */
/* Structure to hold optimisation information */
typedef struct {
xspect *i_sp; /* Illuminiant measurement */
xspect *r_sp; /* Illuminant off paper measurement */
xspect *p_sp; /* Paper reflectance measurement */
xsp2cie *pap; /* Estimated illuminant + UV on paper lookup inc FWA */
xsp2cie *ref; /* Measured illuminant on paper lookup */
xspect ill; /* Illuminant with UV added - set by bfindfunc() */
xspect cpsp; /* FWA corrected calculated paper reflectance */
xspect srop; /* Scaled measured paper reflectance */
double lab0[3], lab1[3]; /* Conversion of calculated vs. measured */
} bfinds;
/* Optimize the UV content that minimizes the (weighted) Delta E */
static double bfindfunc(void *adata, double pv[]) {
bfinds *b = (bfinds *)adata;
int i;
double rv = 0.0;
/* Add UV level to illuminant */
b->ill = *b->i_sp;
xsp_setUV(&b->ill, b->i_sp, pv[0]); /* Extends ill range into UV */
/* Update the conversion */
if (b->pap->update_fwa_custillum(b->pap, NULL, &b->ill) != 0)
error ("Updating FWA compensation failed");
/* Apply FWA compensation to the paper reflectance */
b->pap->sconvert(b->pap, &b->cpsp, b->lab0, b->p_sp);
/* Adjust gain factor of measured illuminant off paper */
/* and divide by illuminant measurement to give reflectance */
b->srop = *b->r_sp;
for (i = 0; i < b->r_sp->spec_n; i++) {
double ww = XSPECT_XWL(b->r_sp, i);
double ival = value_xspect(b->i_sp, ww);
if (ival < 0.05) /* Stop noise sending it wild */
ival = 0.05;
b->srop.spec[i] *= pv[1]/ival;
if (b->srop.spec[i] < 0.0)
b->srop.spec[i] = 0.0;
}
/* Compute Lab of the computed reflectance under flat spectrum */
b->ref->convert(b->ref, b->lab0, &b->cpsp);
/* Compute Lab value of illuminant measured reflectance */
b->ref->convert(b->ref, b->lab1, &b->srop);
/* Weighted Delta E (low weight on a* error) */
rv = sqrt( (b->lab0[0] - b->lab1[0]) * (b->lab0[0] - b->lab1[0])
+ 0.1 * (b->lab0[1] - b->lab1[1]) * (b->lab0[1] - b->lab1[1])
+ (b->lab0[2] - b->lab1[2]) * (b->lab0[2] - b->lab1[2]));
/* Add a slight weight of the UV level, to minimize it */
/* if the case is unconstrained. */
rv += 0.1 * fabs(pv[0]);
//printf("~1 rev = %f (%f %f %f - %f %f %f) from %f %f\n",rv, b->lab0[0], b->lab0[1], b->lab0[2], b->lab1[0], b->lab1[1], b->lab1[2], pv[0], pv[1]);
return rv;
}
/* ============================================================== */
#ifdef SHOWDXX /* Plot the best matched daylight as well */
/* optimizer callback for computing daylight match */
/* Structure to hold optimisation information */
typedef struct {
xspect ill; /* Illuminant with UV added - target */
xspect dxx; /* Daylight spectrum */
xsp2cie *ref; /* reference Lab conversion */
double lab0[3], lab1[3]; /* Conversion of target vs. Daylight */
} cfinds;
/* Optimize the daylight color temperature and level to minimizes the Delta E */
static double cfindfunc(void *adata, double pv[]) {
cfinds *b = (cfinds *)adata;
int i;
double rv = 0.0;
/* Compute daylight with the given color temperature */
standardIlluminant( &b->dxx, icxIT_Dtemp, pv[0]);
b->dxx.norm = 1.0;
/* Adjust the level of daylight spectra */
for (i = 0; i < b->dxx.spec_n; i++) {
b->dxx.spec[i] *= pv[1];
}
/* Compute Lab of target */
b->ref->convert(b->ref, b->lab0, &b->ill);
/* Compute Lab of Dxx */
b->ref->convert(b->ref, b->lab1, &b->dxx);
/* Weighted Delta E (low weight on a* error) */
rv = icmLabDEsq(b->lab0, b->lab1);
//printf("~1 rev = %f (%f %f %f - %f %f %f) from %f %f\n",rv, b->lab0[0], b->lab0[1], b->lab0[2], b->lab1[0], b->lab1[1], b->lab1[2], pv[0], pv[1]);
return rv;
}
#endif /* SHOWDXX */
/* ============================================================== */
void
usage(char *diag, ...) {
icompaths *icmps;
fprintf(stderr,"Measure an illuminant, Version %s\n",ARGYLL_VERSION_STR);
fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n");
if (setup_spyd2() == 2)
fprintf(stderr,"WARNING: This file contains a proprietary firmware image, and may not be freely distributed !\n");
if (diag != NULL) {
va_list args;
fprintf(stderr,"Diagnostic: ");
va_start(args, diag);
vfprintf(stderr, diag, args);
va_end(args);
fprintf(stderr,"\n");
}
fprintf(stderr,"usage: illumread [-options] output.sp\n");
fprintf(stderr," -v Verbose mode\n");
fprintf(stderr," -S Plot spectrum for each reading\n");
fprintf(stderr," -c listno Choose instrument from the following list (default 1)\n");
if ((icmps = new_icompaths(g_log)) != NULL) {
icompath **paths;
if ((paths = icmps->paths) != NULL) {
int i;
for (i = 0; ; i++) {
if (paths[i] == NULL)
break;
if (paths[i]->itype == instSpyder2 && setup_spyd2() == 0)
fprintf(stderr," %d = '%s' !! Disabled - no firmware !!\n",i+1,paths[i]->name);
else
fprintf(stderr," %d = '%s'\n",i+1,paths[i]->name);
}
} else
fprintf(stderr," ** No ports found **\n");
}
fprintf(stderr," -N Disable initial calibration of instrument if possible\n");
fprintf(stderr," -H Use high resolution spectrum mode (if available)\n");
fprintf(stderr," -Y r Set refresh measurement mode\n");
fprintf(stderr," -Y R:rate Override measured refresh rate with rate Hz\n");
fprintf(stderr," -W n|h|x Override serial port flow control: n = none, h = HW, x = Xon/Xoff\n");
fprintf(stderr," -D [level] Print debug diagnostics to stderr\n");
fprintf(stderr," illuminant.sp File to save measurement to\n");
if (icmps != NULL)
icmps->del(icmps);
exit(1);
}
int main(int argc, char *argv[])
{
int i,j;
int fa, nfa, mfa; /* current argument we're looking at */
int verb = 0;
int debug = 0;
int nocal = 0; /* Disable initial calibration */
int pspec = 0; /* 2 = Plot out the spectrum for each reading */
int highres = 0; /* Use high res mode if available */
int refrmode = -1; /* -1 = default, = non-refresh mode, 1 = non-refresh mode */
double refrate = 0.0; /* 0.0 = default, > 0.0 = override refresh rate */
char outname[MAXNAMEL+1] = "\000"; /* Spectral output file name */
#ifdef DEBUG
char tname[MAXNAMEL+11] = "\000", *tnp;
int rd_i = 0, rd_r = 0, rd_p = 0;
#endif
icompaths *icmps = NULL; /* Ports to choose from */
int comno = 1; /* Specific port suggested by user */
inst *it = NULL; /* Instrument object, NULL if none */
inst_mode mode = 0; /* Instrument reading mode */
inst_opt_type trigmode = inst_opt_unknown; /* Chosen trigger mode */
instType itype = instUnknown; /* No default target instrument */
inst_mode cap = inst_mode_none; /* Instrument mode capabilities */
inst2_capability cap2 = inst2_none; /* Instrument capabilities 2 */
inst3_capability cap3 = inst3_none; /* Instrument capabilities 3 */
baud_rate br = baud_38400; /* Target baud rate */
flow_control fc = fc_nc; /* Default flow control */
inst_code rv;
int uswitch = 0; /* Instrument switch is enabled */
xspect i_sp; /* Illuminant emsission spectrum */
xspect r_sp; /* Illuminant reflected from paper emission spectrum */
xspect p_sp; /* Paper reflectance spectrum */
xspect insp; /* Instrument illuminant (for FWA) */
xspect ill; /* Estimated illuminant */
xspect aill; /* Accumulated result */
int nacc = 0; /* Number accumulated */
ipatch val; /* Value read */
set_exe_path(argv[0]); /* Set global exe_path and error_program */
check_if_not_interactive();
setup_spyd2(); /* Load firware if available */
i_sp.spec_n = 0;
r_sp.spec_n = 0;
p_sp.spec_n = 0;
insp.spec_n = 0;
ill.spec_n = 0;
aill.spec_n = 0;
/* Process the arguments */
mfa = 0; /* Minimum final arguments */
for(fa = 1;fa < argc;fa++) {
nfa = fa; /* skip to nfa if next argument is used */
if (argv[fa][0] == '-') { /* Look for any flags */
char *na = NULL; /* next argument after flag, null if none */
if (argv[fa][2] != '\000')
na = &argv[fa][2]; /* next is directly after flag */
else {
if ((fa+1+mfa) < argc) {
if (argv[fa+1][0] != '-') {
nfa = fa + 1;
na = argv[nfa]; /* next is seperate non-flag argument */
}
}
}
if (argv[fa][1] == '?') {
usage(NULL);
} else if (argv[fa][1] == 'v' || argv[fa][1] == 'V') {
verb = 1;
g_log->verb = verb;
} else if (argv[fa][1] == 'S') {
pspec = 2;
/* COM port */
} else if (argv[fa][1] == 'c') {
fa = nfa;
if (na == NULL) usage(NULL);
comno = atoi(na);
if (comno < 1 || comno > 99) usage(NULL);
/* No initial calibration */
} else if (argv[fa][1] == 'N') {
nocal = 1;
/* High res mode */
} else if (argv[fa][1] == 'H') {
highres = 1;
/* Extra flags */
} else if (argv[fa][1] == 'Y') {
if (na == NULL)
usage(NULL);
if (na[0] == 'R') {
if (na[1] != ':')
usage("-Y R:rate syntax incorrect");
refrate = atof(na+2);
if (refrate < 5.0 || refrate > 150.0)
usage("-Y R:rate %f Hz not in valid range",refrate);
} else if (na[0] == 'r')
refrmode = 1;
else
usage(NULL);
fa = nfa;
/* Serial port flow control */
} else if (argv[fa][1] == 'W') {
fa = nfa;
if (na == NULL) usage(NULL);
if (na[0] == 'n' || na[0] == 'N')
fc = fc_none;
else if (na[0] == 'h' || na[0] == 'H')
fc = fc_Hardware;
else if (na[0] == 'x' || na[0] == 'X')
fc = fc_XonXOff;
else
usage(NULL);
} else if (argv[fa][1] == 'D') {
debug = 1;
if (na != NULL && na[0] >= '0' && na[0] <= '9') {
debug = atoi(na);
fa = nfa;
}
g_log->debug = debug;
} else
usage(NULL);
}
else
break;
}
/* Get the output spectrum file name argument */
if (fa >= argc)
usage(NULL);
strncpy(outname,argv[fa++],MAXNAMEL-1); outname[MAXNAMEL-1] = '\000';
#ifdef DEBUG
strcpy(tname, outname);
if ((tnp = strrchr(tname, '.')) == NULL)
tnp = tname + strlen(tname);
/* Special debug */
strcpy(tnp, "_i.sp");
if (read_xspect(&i_sp, tname) == 0) {
rd_i = 1;
printf("(Found '%s' file and loaded it)\n",tname);
}
strcpy(tnp, "_r.sp");
if (read_xspect(&r_sp, tname) == 0) {
rd_r = 1;
printf("(Found '%s' file and loaded it)\n",tname);
}
strcpy(tnp, "_p.sp");
if (read_xspect(&p_sp, tname) == 0) {
rd_p = 1;
/* Should read instrument type from debug_p.sp !! */
if (inst_illuminant(&insp, instI1Pro) != 0) /* Hack !! */
error ("Instrument doesn't have an FWA illuminent");
printf("(Found '%s' file and loaded it)\n",tname);
}
#endif /* DEBUG */
/* Until the measurements are done, or we give up */
for (;;) {
int c;
/* Print the menue of adjustments */
printf("\nPress 1 .. 7\n");
printf("1) Measure direct illuminant%s\n",i_sp.spec_n != 0 ? " (measured)":"");
printf("2) Measure illuminant reflected from paper%s\n", r_sp.spec_n != 0 ? " (measured)":"");
printf("3) Measure paper%s\n", p_sp.spec_n != 0 ? " (measured)":"");
if (it == NULL) {
printf("4) Select another instrument, Currently %d (", comno);
if (icmps == NULL)
icmps = new_icompaths(g_log);
else
icmps->refresh(icmps);
if (icmps != NULL) {
icompath **paths;
if ((paths = icmps->paths) != NULL) {
int i;
for (i = 0; ; i++) {
if (paths[i] == NULL)
break;
if ((i+1) == comno) {
printf(" '%s'",paths[i]->name);
break;
}
}
}
}
printf(")\n");
} else
printf("4) Select another instrument, Currently %s\n", inst_name(itype));
printf("5) Compute illuminant spectrum, average result with %d previous readings & save it\n",nacc);
printf("6) Compute illuminant spectrum from this reading & save result\n");
printf("7) Exit\n");
empty_con_chars();
c = next_con_char();
printf("'%c'\n",c);
/* Deal with doing a measurement */
if (c == '1' || c == '2' || c == '3') {
int ch;
if (it == NULL) {
if (icmps == NULL)
icmps = new_icompaths(g_log);
/* Open the instrument */
if ((it = new_inst(icmps->get_path(icmps, comno), 0, g_log, DUIH_FUNC_AND_CONTEXT)) == NULL) {
printf("!!! Unknown, inappropriate or no instrument detected !!!\n");
continue;
}
if (verb)
printf("Connecting to the instrument ..\n");
#ifdef DEBUG
printf("About to init the comms\n");
#endif
/* Establish communications */
if ((rv = it->init_coms(it, br, fc, 15.0)) != inst_ok) {
printf("!!! Failed to initialise communications with instrument\n"
" or wrong instrument or bad configuration !!!\n"
" ('%s' + '%s')\n", it->inst_interp_error(it, rv), it->interp_error(it, rv));
it->del(it);
it = NULL;
itype = instUnknown;
continue;
}
#ifdef DEBUG
printf("Established comms & initing the instrument\n");
#endif
/* Initialise the instrument */
if ((rv = it->init_inst(it)) != inst_ok) {
printf("!!! Instrument initialisation failed with '%s' (%s) !!!\n",
it->inst_interp_error(it, rv), it->interp_error(it, rv));
it->del(it);
it = NULL;
itype = instUnknown;
continue;
}
itype = it->get_itype(it); /* get actual type of instrument */
/* Check the instrument has the necessary capabilities */
it->capabilities(it, &cap, &cap2, &cap3);
/* Need spectral */
if (!IMODETST(cap, inst_mode_spectral)) {
printf("Instrument lacks spectral measurement capability");
}
if (refrmode >= 0 && !IMODETST(cap, inst_mode_emis_refresh_ovd)
&& !IMODETST(cap, inst_mode_emis_norefresh_ovd)) {
if (verb) {
printf("Requested refresh mode override and instrument doesn't support it (ignored)\n");
refrmode = -1;
}
}
/* Disable iniial calibration of machine if selected */
if (nocal != 0) {
if ((rv = it->get_set_opt(it,inst_opt_noinitcalib, 0)) != inst_ok) {
printf("Setting no-initial calibrate failed failed with '%s' (%s) !!!\n",
it->inst_interp_error(it, rv), it->interp_error(it, rv));
printf("Disable initial-calibrate not supported\n");
}
}
}
/* Check the instrument has the necessary capabilities for this measurement */
it->capabilities(it, &cap, &cap2, &cap3);
if (c == '1') {
if (IMODETST(cap, inst_mode_emis_ambient)) {
mode = inst_mode_emis_ambient;
} else if (IMODETST(cap, inst_mode_emis_spot)) {
mode = inst_mode_emis_spot;
} else {
printf("!!! Instrument doesn't have ambient or emissive capability !!!\n");
continue;
}
}
if (c == '2') {
if (IMODETST(cap, inst_mode_emis_tele)) {
mode = inst_mode_emis_tele;
} else if (IMODETST(cap, inst_mode_emis_spot)) {
mode = inst_mode_emis_spot;
} else {
printf("!!! Instrument doesn't have telephoto or emissive capability !!!\n");
continue;
}
}
if (c == '3') {
inst_opt_filter filt;
if (IMODETST(cap, inst_mode_ref_spot)) {
mode = inst_mode_ref_spot;
} else {
printf("!!! Instrument lacks reflective spot measurement capability !!!\n");
continue;
}
if ((rv = it->get_set_opt(it, inst_stat_get_filter, &filt)) == inst_ok) {
if (filt & inst_opt_filter_UVCut) {
printf("!!! Instrument has UV filter - can't measure FWA !!!\n");
continue;
}
}
}
mode |= inst_mode_spectral;
if (refrmode == 0)
mode |= inst_mode_emis_norefresh_ovd;
else if (refrmode == 1)
mode |= inst_mode_emis_refresh_ovd;
if (highres) {
if (IMODETST(cap, inst_mode_highres)) {
mode |= inst_mode_highres;
} else if (verb) {
printf("!!! High resolution ignored - instrument doesn't support it !!!\n");
}
}
if ((rv = it->set_mode(it, mode)) != inst_ok) {
printf("!!! Setting instrument mode failed with error :'%s' (%s) !!!\n",
it->inst_interp_error(it, rv), it->interp_error(it, rv));
continue;
}
it->capabilities(it, &cap, &cap2, &cap3);
if (refrate > 0.0) {
if (!(cap2 & inst2_set_refresh_rate)) {
if (verb)
printf("Attempted to set refresh rate and instrument doesn't support setting it (ignored)\n");
refrate = 0.0;
} else {
if ((rv = it->set_refr_rate(it, refrate)) != inst_ok) {
error("Setting instrument refresh rate to %f Hz failed with error :'%s' (%s)",
refrate, it->inst_interp_error(it, rv), it->interp_error(it, rv));
}
}
}
/* If it batter powered, show the status of the battery */
if ((cap2 & inst2_has_battery)) {
double batstat = 0.0;
if ((rv = it->get_set_opt(it, inst_stat_battery, &batstat)) == inst_ok)
printf("The battery charged level is %.0f%%\n",batstat * 100.0);
}
/* If it's an instrument that need positioning do trigger using user via uicallback */
/* in illumread, else enable switch or keyboard trigger if possible. */
if ((cap2 & inst2_xy_locate) && (cap2 & inst2_xy_position)) {
trigmode = inst_opt_trig_prog;
} else if (cap2 & inst2_user_switch_trig) {
trigmode = inst_opt_trig_user_switch;
uswitch = 1;
/* Or go for user via uicallback trigger */
} else if (cap2 & inst2_user_trig) {
trigmode = inst_opt_trig_user;
/* Or something is wrong with instrument capabilities */
} else {
printf("!!! No reasonable trigger mode avilable for this instrument !!!\n");
continue;
}
if ((rv = it->get_set_opt(it, trigmode)) != inst_ok) {
printf("!!! Setting trigger mode failed with error :'%s' (%s) !!!\n",
it->inst_interp_error(it, rv), it->interp_error(it, rv));
continue;
}
/* Setup the keyboard trigger to return our commands */
inst_set_uih(0x0, 0xff, DUIH_TRIG);
inst_set_uih('q', 'q', DUIH_ABORT);
inst_set_uih('Q', 'Q', DUIH_ABORT);
inst_set_uih(0x03, 0x03, DUIH_ABORT); /* ^c */
inst_set_uih(0x1b, 0x1b, DUIH_ABORT); /* Esc */
/* Hold table */
if (cap2 & inst2_xy_holdrel) {
for (;;) { /* retry loop */
if ((rv = it->xy_sheet_hold(it)) == inst_ok)
break;
if (ierror(it, rv)) {
printf("!!! Setting paper hold failed with error :'%s' (%s) !!!\n",
it->inst_interp_error(it, rv), it->interp_error(it, rv));
it->xy_clear(it);
continue;
}
}
}
/* Do any needed calibration before the user places the instrument on a desired spot */
if (it->needs_calibration(it) != inst_calt_none) {
double lx, ly;
inst_code ev;
printf("\nInstrument needs a calibration before continuing\n");
/* save current location */
if ((cap2 & inst2_xy_locate) && (cap2 & inst2_xy_position)) {
for (;;) { /* retry loop */
if ((ev = it->xy_get_location(it, &lx, &ly)) == inst_ok)
break;
if (ierror(it, ev) == 0) /* Ignore */
continue;
break; /* Abort */
}
if (ev != inst_ok) {
printf("!!! Setting calibration location failed with error :'%s' (%s) !!!\n",
it->inst_interp_error(it, rv), it->interp_error(it, rv));
continue;
}
}
ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL);
if (ev != inst_ok) { /* Abort or fatal error */
printf("!!! Calibration failed with error :'%s' (%s) !!!\n",
it->inst_interp_error(it, rv), it->interp_error(it, rv));
continue;
}
/* restore location */
if ((cap2 & inst2_xy_locate) && (cap2 & inst2_xy_position)) {
for (;;) { /* retry loop */
if ((ev = it->xy_position(it, 0, lx, ly)) == inst_ok)
break;
if (ierror(it, ev) == 0) /* Ignore */
continue;
break; /* Abort */
}
if (ev != inst_ok) {
printf("!!! Restoring location failed with error :'%s' (%s) !!!\n",
it->inst_interp_error(it, rv), it->interp_error(it, rv));
continue;
}
}
}
/* Now do the measurement: */
/* If this is an xy instrument: */
if ((cap2 & inst2_xy_locate) && (cap2 & inst2_xy_position)) {
/* Allow the user to position the instrument */
for (;;) { /* retry loop */
if ((rv = it->xy_locate_start(it)) == inst_ok)
break;
if (ierror(it, rv) == 0) /* Ignore */
continue;
break; /* Abort */
}
if (rv != inst_ok)
break; /* Abort */
if (c != 3) {
printf("!!! Unexpected: XY instrument used for emissive measurements !!!\n");
continue;
}
printf("Using the XY table controls, position the instrument sight\n");
printf("so as to read the paper,\n");
/* Purely manual instrument */
} else {
if (c == '1') {
if (IMODETST(cap, inst_mode_emis_ambient)) {
printf("\n(If applicable) set instrument to ambient measurenent mode, or place\n");
printf("ambient adapter on it, and position it so as to measure the illuminant directly.\n");
} else {
printf("\n(If applicable) set instrument to emissive measurenent mode,\n");
printf("and position it so as to measure the illuminant directly.\n");
}
} else if (c == '2') {
if (IMODETST(cap, inst_mode_emis_tele)) {
printf("\n(If applicable) set instrument to telephoto measurenent mode,\n");
printf("position it so as to measure the illuminant reflected from the paper.\n");
} else {
printf("\n(If applicable) set instrument to emsissive measurenent mode,\n");
printf("position it so as to measure the illuminant reflected from the paper.\n");
}
} else if (c == '3') {
printf("\n(If applicable) set instrument to reflective measurenent mode,\n");
printf("position it so as to measure the paper.");
} else
error("Unexpected choice");
}
if (uswitch)
printf("Hit ESC or Q to abort, or instrument switch or any other key to take a reading: ");
else
printf("Hit ESC or Q to abort, any any other key to take a reading: ");
fflush(stdout);
if ((cap2 & inst2_xy_locate) && (cap2 & inst2_xy_position)) {
/* Wait for the user to hit a key */
for (;;) {
if ((rv = inst_get_uicallback()(inst_get_uicontext(), inst_armed)) != inst_ok)
break;
}
if (rv == inst_user_abort) {
break; /* Abort */
} else if (rv == inst_user_trig) {
double lx, ly;
inst_code ev;
/* Take the location set on the sight, and move the instrument */
/* to take the measurement there. */
if ((cap2 & inst2_xy_locate) && (cap2 & inst2_xy_position)) {
for (;;) { /* retry loop */
if ((rv = it->xy_get_location(it, &lx, &ly)) == inst_ok)
break;
if (ierror(it, rv) == 0) /* Ignore */
continue;
break; /* Abort */
}
if (rv != inst_ok)
break; /* Abort */
for (;;) { /* retry loop */
if ((rv = it->xy_locate_end(it)) == inst_ok)
break;
if (ierror(it, rv) == 0) /* Ignore */
continue;
break; /* Abort */
}
if (rv != inst_ok)
break; /* Abort */
for (;;) { /* retry loop */
if ((rv = it->xy_position(it, 1, lx, ly)) == inst_ok)
break;
if (ierror(it, rv) == 0) /* Ignore */
continue;
break; /* Abort */
}
if (rv != inst_ok)
break; /* Abort */
}
rv = it->read_sample(it, "SPOT", &val, 1);
/* Restore the location the instrument to have the location */
/* sight over the selected patch. */
for (;;) { /* retry loop */
if ((ev = it->xy_position(it, 0, lx, ly)) == inst_ok)
break;
if (ierror(it, ev) == 0) /* Ignore */
continue;
break; /* Abort */
}
if (ev != inst_ok)
break; /* Abort */
}
/* else what ? */
/* Not an XY instrument */
} else {
rv = it->read_sample(it, "SPOT", &val, 1);
}
/* Release paper */
if (cap2 & inst2_xy_holdrel) {
it->xy_clear(it);
}
#ifdef DEBUG
printf("read_sample returned '%s' (%s)\n",
it->inst_interp_error(it, rv), it->interp_error(it, rv));
#endif /* DEBUG */
/* Deal with a trigger or command */
if ((rv & inst_mask) == inst_user_trig) {
ch = inst_get_uih_char() & 0xff;
/* Deal with a command or abort */
} else if ((rv & inst_mask) == inst_user_abort) {
ch = inst_get_uih_char();
if (ch & DUIH_CMND) {
ch &= 0xff;
} else if (ch & DUIH_ABORT) {
printf("\nIlluminant measure aborted at user request!\n");
continue;
}
/* Deal with a needs calibration */
} else if ((rv & inst_mask) == inst_needs_cal) {
inst_code ev;
printf("\nIlluminant measure failed because instruments needs calibration.\n");
ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL);
continue;
/* Deal with a bad sensor position */
} else if ((rv & inst_mask) == inst_wrong_config) {
printf("\nIlluminant measure failed due to the sensor being in the wrong position\n(%s)\n",it->interp_error(it, rv));
continue;
/* Deal with a misread */
} else if ((rv & inst_mask) == inst_misread) {
printf("\nIlluminant measure failed due to misread (%s)\n",it->interp_error(it, rv));
continue;
/* Deal with a communications error */
} else if ((rv & inst_mask) == inst_coms_fail) {
empty_con_chars();
printf("\nIlluminant measure failed due to communication problem.\n");
printf("Hit Esc or Q to give up, any other key to retry:"); fflush(stdout);
continue;
/* Some other fatal error */
} else if (rv != inst_ok) {
printf("\nGot fatal error '%s' (%s)\n",
it->inst_interp_error(it, rv), it->interp_error(it, rv));
continue;
}
if (c == '1') {
i_sp = val.sp;
#ifdef DEBUG
if (rd_i == 0) {
strcpy(tnp, "_i.sp");
write_xspect(tname,&i_sp);
}
#endif
} else if (c == '2') {
r_sp = val.sp;
#ifdef DEBUG
if (rd_r == 0) {
strcpy(tnp, "_r.sp");
write_xspect(tname,&r_sp);
}
#endif
} else if (c == '3') {
p_sp = val.sp;
/* Get the illuminant spectrum too */
if (inst_illuminant(&insp, itype) != 0)
error ("Instrument doesn't have an FWA illuminent");
#ifdef DEBUG
if (rd_p == 0) {
/* Should save instrument type/instrument illuminant spectrum !!! */
strcpy(tnp, "_p.sp");
write_xspect(tname,&p_sp);
}
#endif
}
if (pspec) {
double xx[XSPECT_MAX_BANDS];
double y1[XSPECT_MAX_BANDS];
double xmin, xmax, ymin, ymax;
int nn;
if (val.sp.spec_n <= 0)
error("Instrument didn't return spectral data");
printf("Spectrum from %f to %f nm in %d steps\n",
val.sp.spec_wl_short, val.sp.spec_wl_long, val.sp.spec_n);
if (val.sp.spec_n > XSPECT_MAX_BANDS)
error("Got > %d spectral values (%d)",XSPECT_MAX_BANDS,val.sp.spec_n);
for (j = 0; j < val.sp.spec_n; j++) {
GCC_BUGFIX(j)
xx[j] = val.sp.spec_wl_short
+ j * (val.sp.spec_wl_long - val.sp.spec_wl_short)/(val.sp.spec_n-1);
y1[j] = value_xspect(&val.sp, xx[j]);
}
xmax = val.sp.spec_wl_long;
xmin = val.sp.spec_wl_short;
ymin = ymax = 0.0; /* let it scale */
do_plot_x(xx, y1, NULL, NULL, val.sp.spec_n, 1,
xmin, xmax, ymin, ymax, 2.0);
}
continue;
} /* End of take a measurement */
/* Deal with selecting the instrument */
if (c == '4') {
if (it != NULL)
it->del(it);
it = NULL;
itype = instUnknown;
if (icmps == NULL)
icmps = new_icompaths(g_log);
else
icmps->refresh(icmps);
if (icmps != NULL) {
icompath **paths;
if ((paths = icmps->paths) != NULL) {
int i;
for (i = 0; ; i++) {
if (paths[i] == NULL)
break;
if (paths[i]->itype == instSpyder2 && setup_spyd2() == 0)
fprintf(stderr," %d = '%s' !! Disabled - no firmware !!\n",i+1,paths[i]->name);
else
fprintf(stderr," %d = '%s'\n",i+1,paths[i]->name);
}
printf("Select device 1 - %d: \n",i);
empty_con_chars();
c = next_con_char();
if (c < '1' || c > ('0' + i)) {
printf("'%c' is out of range - ignored !\n",c);
} else {
comno = c - '0';
}
} else {
fprintf(stderr,"No ports to select from!\n");
}
}
continue;
}
if (c == '5' || c == '6') { /* Compute result */
xspect cpisp; /* FWA corrected calculated initial paper reflectance */
double gain;
bfinds bf; /* Optimization context */
double xyz0[3], xyz1[3];
double tt[2], sr[2];
double rv;
if (i_sp.spec_n == 0) {
printf("Need to measure the direct illuminant\n");
continue;
}
if (r_sp.spec_n == 0) {
printf("Need to measure the illuminant reflected off paper\n");
continue;
}
if (p_sp.spec_n == 0) {
printf("Need to measure the paper\n");
continue;
}
/* Normalize direct illumination */
for (gain = 0.0, i = 0; i < i_sp.spec_n; i++)
gain += i_sp.spec[i];
gain /= i_sp.spec_n;
for (i = 0; i < i_sp.spec_n; i++)
i_sp.spec[i] /= gain;
/* Normalize indirect illumination */
for (gain = 0.0, i = 0; i < r_sp.spec_n; i++)
gain += r_sp.spec[i];
gain /= r_sp.spec_n;
for (i = 0; i < r_sp.spec_n; i++)
r_sp.spec[i] /= gain;
/* Normalize paper reflectance to 1.0 */
xspect_denorm(&p_sp);
bf.i_sp = &i_sp;
bf.r_sp = &r_sp;
bf.p_sp = &p_sp;
if ((bf.pap = new_xsp2cie(icxIT_custom, &i_sp, icxOT_CIE_1931_2, NULL, icSigLabData, icxClamp)) == NULL)
error("new_xsp2cie pap failed");
if (bf.pap->set_fwa(bf.pap, &insp, NULL, &p_sp) != 0)
error ("Setting FWA compensation failed");
/* Setup the equal energy to Lab conversion */
if ((bf.ref = new_xsp2cie(icxIT_E, NULL, icxOT_CIE_1931_2, NULL, icSigLabData, icxClamp)) == NULL)
error("new_xsp2cie ref failed");
/* Estimate an initial gain match */
tt[0] = 0.0;
tt[1] = 1.0;
bfindfunc((void *)&bf, tt);
icmLab2XYZ(&icmD50, xyz0, bf.lab0);
icmLab2XYZ(&icmD50, xyz1, bf.lab1);
gain = xyz0[1] / xyz1[1];
//printf("~1 Target XYZ %f %f %f, is %f %f %f, gain needed = %f\n",xyz0[0],xyz0[1],xyz0[2],xyz1[0],xyz1[1],xyz1[2],gain);
for (i = 0; i < r_sp.spec_n; i++)
r_sp.spec[i] *= gain;
/* Check initial gain match is OK */
bfindfunc((void *)&bf, tt);
cpisp = bf.cpsp; /* Copy initial match */
icmLab2XYZ(&icmD50, xyz0, bf.lab0);
icmLab2XYZ(&icmD50, xyz1, bf.lab1);
#ifdef NEVER
printf("~1 Target XYZ %f %f %f, now %f %f %f\n",xyz0[0],xyz0[1],xyz0[2],xyz1[0],xyz1[1],xyz1[2]);
#endif
tt[0] = 0.1, tt[1] = 1.0; /* Search parameter starting values */
sr[0] = sr[1] = 0.1; /* Search parameter search radiuses */
if (powell(&rv, 2, tt, sr, 0.0001, 1000,
bfindfunc, (void *)&bf, NULL, NULL) != 0) {
printf("Optimization search failed\n");
continue;
}
printf("(Best match DE %f, UV content = %f (gain match %f))\n", rv, tt[0], tt[1]);
/* Compute the result */
bfindfunc((void *)&bf, tt);
ill = bf.ill;
if (c == '5' && nacc > 0) {
for (i = 0; i < ill.spec_n; i++)
aill.spec[i] += ill.spec[i];
nacc++;
} else {
aill = ill;
nacc = 1;
}
/* Save the result */
if (aill.spec_n == 0) {
printf("Nothing to save!\n");
} else {
for (i = 0; i < ill.spec_n; i++)
ill.spec[i] = aill.spec[i]/nacc;
if(write_xspect(outname, &ill))
printf("\nWriting file '%s' failed\n",outname);
else
printf("\nWriting file '%s' succeeded\n",outname);
#ifdef DEBUG
strcpy(tnp, "_mpir.sp"); // Measured paper under illuminant spectrum
write_xspect(tname,&bf.srop);
strcpy(tnp, "_cpir.sp"); // Computed paper under illuminant spectrum
write_xspect(tname,&bf.cpsp);
#endif
}
/* Plot the result */
if (pspec) {
double xx[XSPECT_MAX_BANDS];
double y1[XSPECT_MAX_BANDS];
double y2[XSPECT_MAX_BANDS];
double y3[XSPECT_MAX_BANDS];
double xmin, xmax, ymin, ymax;
int nn;
#ifdef SHOWDXX
cfinds cf; /* Optimization context */
double tt[2], sr[2];
double rv;
xspect cpdsp; /* FWA corrected calculated daylight paper reflectance */
/* Setup the referencec comversion */
if ((cf.ref = new_xsp2cie(icxIT_E, NULL, icxOT_CIE_1931_2, NULL, icSigLabData, icxClamp)) == NULL)
error("new_xsp2cie ref failed");
cf.ill = bf.ill;
/* Set starting values */
tt[0] = 5000.0; /* degrees */
tt[1] = 1.0;
cfindfunc((void *)&cf, tt);
icmLab2XYZ(&icmD50, xyz0, cf.lab0);
icmLab2XYZ(&icmD50, xyz1, cf.lab1);
tt[1] = xyz0[1] / xyz1[1];
sr[0] = 10.0;
sr[1] = 0.1; /* Search parameter search radiuses */
if (powell(&rv, 2, tt, sr, 0.0001, 1000,
cfindfunc, (void *)&cf, NULL, NULL) != 0) {
error("Optimization search failed\n");
}
printf("(Best daylight match DE %f, temp = %f (gain match %f))\n", rv, tt[0], tt[1]);
/* Compute the result */
cfindfunc((void *)&cf, tt);
printf("Illuminant: Black - Measured, Red - with estimated UV, Green - daylight\n");
if (bf.ill.spec_n > XSPECT_MAX_BANDS)
error("Got > %d spectral values (%d)",XSPECT_MAX_BANDS,bf.ill.spec_n);
for (j = 0; j < bf.ill.spec_n; j++) {
GCC_BUGFIX(j)
xx[j] = XSPECT_XWL(&bf.ill, j);
y1[j] = value_xspect(bf.i_sp, xx[j]); /* Measured (black) */
y2[j] = value_xspect(&bf.ill, xx[j]); /* Computed (red)*/
y3[j] = value_xspect(&cf.dxx, xx[j]); /* Daylight match (green)*/
}
xmax = bf.ill.spec_wl_long;
xmin = bf.ill.spec_wl_short;
ymin = ymax = 0.0; /* let it scale */
do_plot_x(xx, y1, y2, y3, bf.ill.spec_n, 1,
xmin, xmax, ymin, ymax, 2.0);
/* Update the conversion to the matched Dayligh */
if (bf.pap->update_fwa_custillum(bf.pap, NULL, &cf.dxx) != 0)
error ("Updating FWA compensation to daylight failed");
/* Apply FWA compensation to the paper reflectance */
bf.pap->sconvert(bf.pap, &cpdsp, NULL, bf.p_sp);
printf("Paper Reflectance: Black - Measured, Red - Initial FWA model, Green - FWA Final FWA model\n");
// printf("Paper Reflectance: Black - Measured, Red - FWA Modelled, Green - Daylight modelled\n");
for (j = 0; j < bf.cpsp.spec_n; j++) {
GCC_BUGFIX(j)
xx[j] = XSPECT_XWL(&bf.cpsp, j);
y1[j] = value_xspect(&bf.srop, xx[j]); /* Measured reflectance (black) */
y2[j] = value_xspect(&cpisp, xx[j]); /* Computed initial reflectance (red) */
y3[j] = value_xspect(&bf.cpsp, xx[j]); /* Computed final reflectance (green) */
// y3[j] = value_xspect(&cpdsp, xx[j]); /* Computed daylight reflectance (green) */
}
xmax = bf.cpsp.spec_wl_long;
xmin = bf.cpsp.spec_wl_short;
ymin = ymax = 0.0; /* let it scale */
do_plot_x(xx, y1, y2, y3, bf.cpsp.spec_n, 1,
xmin, xmax, ymin, ymax, 2.0);
#else // !SHOWDXX
printf("Illuminant: Black - Measured, Red - with estimated UV\n");
if (bf.ill.spec_n > XSPECT_MAX_BANDS)
error("Got > %d spectral values (%d)",XSPECT_MAX_BANDS,bf.ill.spec_n);
for (j = 0; j < bf.ill.spec_n; j++) {
GCC_BUGFIX(j)
xx[j] = XSPECT_XWL(&bf.ill, j);
y1[j] = value_xspect(bf.i_sp, xx[j]); /* Measured (black) */
y2[j] = value_xspect(&bf.ill, xx[j]); /* Computed (red)*/
}
xmax = bf.ill.spec_wl_long;
xmin = bf.ill.spec_wl_short;
ymin = ymax = 0.0; /* let it scale */
do_plot_x(xx, y1, y2, NULL, bf.ill.spec_n, 1,
xmin, xmax, ymin, ymax, 2.0);
printf("Paper Reflectance: Black - Measured, Red - Initial FWA model, Green - FWA Final FWA model\n");
for (j = 0; j < bf.cpsp.spec_n; j++) {
GCC_BUGFIX(j)
xx[j] = XSPECT_XWL(&bf.cpsp, j);
y1[j] = value_xspect(&bf.srop, xx[j]); /* Measured reflectance (black) */
y2[j] = value_xspect(&cpisp, xx[j]); /* Computed initial reflectance (red) */
y3[j] = value_xspect(&bf.cpsp, xx[j]); /* Computed final reflectance (green) */
}
xmax = bf.cpsp.spec_wl_long;
xmin = bf.cpsp.spec_wl_short;
ymin = ymax = 0.0; /* let it scale */
do_plot_x(xx, y1, y2, y3, bf.cpsp.spec_n, 1,
xmin, xmax, ymin, ymax, 2.0);
#endif // !SHOWDXX
printf("%s illuminant with UV:\n",c == '5' ? "Averaged" : "Computed");
for (j = 0; j < ill.spec_n; j++) {
GCC_BUGFIX(j)
xx[j] = XSPECT_XWL(&ill, j);
y1[j] = value_xspect(&ill, xx[j]);
}
xmax = ill.spec_wl_long;
xmin = ill.spec_wl_short;
ymin = ymax = 0.0; /* let it scale */
do_plot_x(xx, y1, NULL, NULL, ill.spec_n, 1,
xmin, xmax, ymin, ymax, 2.0);
}
/* Make sure that the illuminant is re-measured for another reading */
i_sp.spec_n = 0;
r_sp.spec_n = 0;
continue;
}
if (c == '7' || c == 0x3) { /* Exit */
break;
}
} /* Next command */
#ifdef DEBUG
printf("About to exit\n");
#endif
/* Free instrument */
if (it != NULL)
it->del(it);
return 0;
}
|