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-rw-r--r--profile/profcheck.c690
1 files changed, 327 insertions, 363 deletions
diff --git a/profile/profcheck.c b/profile/profcheck.c
index 1895713..32cddad 100644
--- a/profile/profcheck.c
+++ b/profile/profcheck.c
@@ -27,6 +27,8 @@
#undef DEBUG
+#undef HACK /* Print per patch XYZ differences */
+
#define IMP_MONO /* Turn on development code */
#define verbo stdout
@@ -42,6 +44,9 @@
#include "xicc.h"
#include "insttypes.h"
#include "sort.h"
+#include "plot.h"
+#include "vrml.h"
+#include "ui.h"
void
usage(void) {
@@ -51,10 +56,13 @@ usage(void) {
fprintf(stderr," -v [level] Verbosity level (default 1), 2 to print each DE\n");
fprintf(stderr," -c Show CIE94 delta E values\n");
fprintf(stderr," -k Show CIEDE2000 delta E values\n");
- fprintf(stderr," -w create VRML visualisation (iccprofile.wrl)\n");
- fprintf(stderr," -x Use VRML axes\n");
- fprintf(stderr," -m Make VRML lines a minimum of 0.5\n");
+ fprintf(stderr," -w create %s visualisation (iccprofile%s)\n",vrml_format(),vrml_ext());
+ fprintf(stderr," -x Use %s axes\n",vrml_format());
+ fprintf(stderr," -m Make %s lines a minimum of 0.5\n",vrml_format());
fprintf(stderr," -e Color vectors acording to delta E\n");
+ fprintf(stderr," -h Plot a histogram of delta E's\n");
+ fprintf(stderr," -s Sort output by delta E\n");
+ fprintf(stderr," -P N.NN Create a pruned .ti3 with points less or equal to N.NN delta E\n");
fprintf(stderr," -d devval1,deval2,devvalN\n");
fprintf(stderr," Specify a device value to sort against\n");
fprintf(stderr," -p Sort device value by PCS (Lab) target\n");
@@ -70,12 +78,7 @@ usage(void) {
exit(1);
}
-FILE *start_vrml(char *name, int doaxes);
-void start_line_set(FILE *wrl);
-void add_vertex(FILE *wrl, double pp[3]);
-void make_lines(FILE *wrl, int ppset);
-void make_de_lines(FILE *wrl);
-void end_vrml(FILE *wrl);
+static void DE2RGB(double *out, double in);
/* Patch value type */
typedef struct {
@@ -83,10 +86,21 @@ typedef struct {
char slo[50]; /* sample location, "" if not known */
double p[MAX_CHAN]; /* Device value */
double v[3]; /* CIE value */
- double dp; /* Delta from target value */
- double dv; /* Delta from CIE value */
+
+ double pv[3]; /* Profile CIE value */
+ double de; /* Delta E to profile CIE value */
+
+ double dp; /* Delta p[] from target device value */
+ double dv; /* Delta E from CIE value */
} pval;
+/* Histogram bin type */
+typedef struct {
+ int count; /* Raw count */
+ double val; /* Normalized value */
+ double min, max; /* Bin range */
+} hbin;
+
int main(int argc, char *argv[])
{
int fa,nfa; /* current argument we're looking at */
@@ -104,8 +118,8 @@ int main(int argc, char *argv[])
icRenderingIntent intent = icAbsoluteColorimetric;
icc *rd_icco;
icmLuBase *luo;
- char out_name[MAXNAMEL+1], *xl; /* VRML name */
- FILE *wrl = NULL;
+ char out_name[MAXNAMEL+1], *xl; /* VRML/X3D name */
+ vrml *wrl = NULL;
int fwacomp = 0; /* FWA compensation */
int isdisp = 0; /* nz if this is a display device, 0 if output */
@@ -117,12 +131,18 @@ int main(int argc, char *argv[])
xspect cust_illum; /* Custom illumination spectrum */
icxObserverType observ = icxOT_CIE_1931_2;
+ int sortbyde = 0; /* Sort by delta E */
+
int ddevv = 0; /* Do device value sort */
double devval[MAX_CHAN]; /* device value to sort on */
- int sortbypcs = 0; /* Sort by PCS */
+ int sortbypcs = 0; /* Sort by PCS error to device target */
+
+ int dohisto = 0; /* Plot histogram of delta E's */
+ double prune = 0.0; /* If > 0.0, created a pruned .ti3 file */
int npat; /* Number of patches */
pval *tpat; /* Patch input values */
+ pval **stpat; /* Pointers to internal sorted tpat[] */
int i, j, rv = 0;
icColorSpaceSignature devspace = 0; /* The device colorspace */
int isAdditive = 0; /* 0 if subtractive, 1 if additive colorspace */
@@ -168,7 +188,7 @@ int main(int argc, char *argv[])
}
}
- /* VRML */
+ /* VRML/X3D */
else if (argv[fa][1] == 'w')
dovrml = 1;
@@ -194,6 +214,23 @@ int main(int argc, char *argv[])
cie2k = 1;
}
+ /* Plot histogram */
+ else if (argv[fa][1] == 'h')
+ dohisto = 1;
+
+ /* Sort by delta E */
+ else if (argv[fa][1] == 's')
+ sortbyde = 1;
+
+ /* Create a pruned .ti3 */
+ else if (argv[fa][1] == 'P') {
+ fa = nfa;
+ if (na == NULL) usage();
+ prune = atof(na);
+ if (prune <= 0.0)
+ usage();
+ }
+
/* Device sort value */
else if (argv[fa][1] == 'd') {
char *tp, buf[200];
@@ -354,7 +391,7 @@ int main(int argc, char *argv[])
strncpy(out_name,iccname,MAXNAMEL-4); out_name[MAXNAMEL-4] = '\000';
if ((xl = strrchr(out_name, '.')) == NULL) /* Figure where extention is */
xl = out_name + strlen(out_name);
- strcpy(xl,".wrl");
+ xl[0] = '\000'; /* Remove extension */
if (fwacomp && spec == 0)
error ("FWA compensation only works when viewer and/or illuminant selected");
@@ -504,6 +541,12 @@ int main(int argc, char *argv[])
if ((tpat = (pval *)malloc(sizeof(pval) * npat)) == NULL)
error("Malloc failed - tpat[]");
+ if ((stpat = (pval **)malloc(sizeof(pval *) * npat)) == NULL)
+ error("Malloc failed - stpat[]");
+
+ for (i = 0; i < npat; i++)
+ stpat[i] = &tpat[i];
+
/* Read in the CGATs fields */
{
int sidx; /* Sample ID index */
@@ -840,11 +883,212 @@ int main(int argc, char *argv[])
}
}
- icg->del(icg); /* Clean up */
} /* End of reading in CGATs file */
/* - - - - - - - - - - */
- /* Check the forward profile accuracy against the data points */
+ /* Compute the delta E of each point against the profile value */
+
+ /* Open up the file for reading */
+ if ((rd_fp = new_icmFileStd_name(iccname,"r")) == NULL)
+ error("Write: Can't open file '%s'",iccname);
+
+ if ((rd_icco = new_icc()) == NULL)
+ error("Read: Creation of ICC object failed");
+
+ /* Read the header and tag list */
+ if ((rv = rd_icco->read(rd_icco,rd_fp,0)) != 0)
+ error("Read: %d, %s",rv,rd_icco->err);
+
+ /* Get the Fwd table, absolute with Lab override */
+ if ((luo = rd_icco->get_luobj(rd_icco, icmFwd, intent,
+ icSigLabData, icmLuOrdNorm)) == NULL) {
+ error("%d, %s",rd_icco->errc, rd_icco->err);
+ }
+
+ for (i = 0; i < npat; i++) {
+
+ /* Lookup the patch value in the profile */
+ if (luo->lookup(luo, tpat[i].pv, tpat[i].p) > 1)
+ error("%d, %s",rd_icco->errc,rd_icco->err);
+
+ if (cie2k)
+ tpat[i].de = icmCIE2K(tpat[i].v, tpat[i].pv);
+ else if (cie94)
+ tpat[i].de = icmCIE94(tpat[i].v, tpat[i].pv);
+ else
+ tpat[i].de = icmLabDE(tpat[i].v, tpat[i].pv);
+ }
+
+ /* - - - - - - - - - - */
+ /* Sort by delta E */
+ if (sortbyde) {
+ /* Sort the dE's */
+#define HEAP_COMPARE(A,B) (A.de > B.de)
+ HEAPSORT(pval, tpat, npat);
+#undef HEAP_COMPARE
+ }
+
+ /* - - - - - - - - - - */
+ /* Plot a dE histogram */
+ if (dohisto) {
+ double demax = -1e6, demin = 1e6;
+ int maxbins = 50; /* Maximum bins */
+ int minbins = 20; /* Target minimum bins (depends on distribution) */
+ int mincount = 10; /* Minimum number of points in a bin */
+ double mbwidth;
+ int nbins = 0;
+ hbin *bins = NULL;
+ double tval;
+ double *x, *y;
+
+ /* Figure out the range of dE's */
+ for (i = 0; i < npat; i++) {
+ double de = tpat[i].de;
+
+ if (de > demax)
+ demax = de;
+ if (de < demin)
+ demin = de;
+ }
+
+ if (demax < 1e-6)
+ error("histogram: dE range is too small to plot");
+
+ /* Bin width that gives maxbins */
+ mbwidth = demax / maxbins;
+
+ /* Reduce mincount if needed to get minbins */
+ if (npat/minbins < mincount)
+ mincount = npat/minbins;
+
+ if ((bins = (hbin *)calloc(maxbins, sizeof(hbin))) == NULL)
+ error("malloc of histogram bins failed");
+
+ /* Sort the dE's */
+#define HEAP_COMPARE(A,B) (A->de < B->de)
+ HEAPSORT(pval *, stpat, npat);
+#undef HEAP_COMPARE
+
+ /* Create bins and add points */
+ bins[0].min = 0.0;
+ for (nbins = i = 0; i < npat && nbins < maxbins; i++) {
+ double de = stpat[i]->de;
+
+ /* Move on to next bin ? */
+ if (bins[nbins].count >= mincount
+ && (de - bins[nbins].min) >= mbwidth) {
+ if (i > 0)
+ bins[nbins].max = 0.5 * (de + stpat[i-1]->de);
+ else
+ bins[nbins].max = de;
+ nbins++;
+ bins[nbins].min = bins[nbins-1].max;
+ }
+ bins[nbins].count++;
+ bins[nbins].max = de;
+ }
+ if (bins[nbins].count != 0)
+ nbins++;
+
+ /* Compute value */
+ tval = 0.0;
+ for (i = 0; i < nbins; i++) {
+ bins[i].val = bins[i].count/(bins[i].max - bins[i].min);
+ tval += bins[i].val;
+ }
+
+ tval /= 100.0; /* Make it % */
+ for (i = 0; i < nbins; i++) {
+ bins[i].val /= tval;
+ if (verb) fprintf(verbo,"Bin %d, %f - %f, % 2.4f%%, count %d\n",
+ i,bins[i].min,bins[i].max,bins[i].val,bins[i].count);
+ }
+
+ /* Plot it */
+ if ((x = (double *)calloc(nbins+1, sizeof(double))) == NULL)
+ error("malloc of histogram x array");
+ if ((y = (double *)calloc(nbins+1, sizeof(double))) == NULL)
+ error("malloc of histogram y array");
+
+ for (i = 0; i < nbins; i++) {
+ x[i] = 0.5 * (bins[i].min + bins[i].max);
+ y[i] = bins[i].val;
+ }
+ x[i] = demax;
+ y[i] = 0.0;
+ do_plot(x, y, NULL, NULL, nbins+1);
+
+ free(y);
+ free(x);
+ free(bins);
+ }
+
+ /* - - - - - - - - - - */
+ /* Create a pruned .ti3 file */
+ if (prune > 0.0) {
+ char *cp, outname[MAXNAMEL+31];
+ cgats *ocg;
+ cgats_set_elem *setel; /* Array of set value elements */
+
+ strcpy(outname, ti3name);
+ if ((cp = strrchr(outname, '.')) == NULL)
+ cp = outname + strlen(outname);
+ sprintf(cp, "_p%.2f.ti3",prune);
+
+ if (verb) fprintf(verbo,"Created pruned file '%s'\n",outname);
+
+ /* Create the output files */
+ if ((ocg = new_cgats()) == NULL)
+ error("Failed to create cgats object");
+
+ /* Duplicate the type of the file */
+ if (icg->t[0].tt == cgats_X) {
+ ocg->add_other(ocg, icg->cgats_type);
+ ocg->add_table(ocg, tt_other, 0);
+ } else if (icg->t[0].tt == tt_other) {
+ ocg->add_other(ocg, icg->others[icg->t[0].oi]);
+ ocg->add_table(ocg, tt_other, 0);
+ } else {
+ ocg->add_table(ocg, icg->t[0].tt, 0);
+ }
+
+ /* Duplicate all the keywords */
+ for (i = 0; i < icg->t[0].nkwords; i++) {
+ ocg->add_kword(ocg, 0, icg->t[0].ksym[i], icg->t[0].kdata[i], NULL);
+ }
+
+ /* Duplicate all of the fields */
+ for (i = 0; i < icg->t[0].nfields; i++) {
+ ocg->add_field(ocg, 0, icg->t[0].fsym[i], icg->t[0].ftype[i]);
+ }
+
+ if ((setel = (cgats_set_elem *)malloc(
+ sizeof(cgats_set_elem) * icg->t[0].nfields)) == NULL)
+ error("Malloc failed!");
+
+ /* Copy them approproately */
+ for (i = 0; i < icg->t[0].nsets; i++) {
+
+ if (tpat[i].de <= prune) {
+ icg->get_setarr(icg, 0, i, setel);
+ ocg->add_setarr(ocg, 0, setel);
+ }
+ }
+
+ if (verb) {
+ double acc;
+
+ acc = (double)ocg->t[0].nsets/(double)icg->t[0].nsets * 100.0;
+ fprintf(verbo,"%.2f%% accepted, %.3f%% rejected\n",acc, 100.0-acc);
+ }
+
+ /* Write out the file */
+ if (ocg->write_name(ocg, outname))
+ error("CGATS file '%s' write error : %s",outname,ocg->err);
+ }
+
+ /* - - - - - - - - - - */
+ /* Display various results */
{
double merr = 0.0; /* Max */
double aerr = 0.0; /* Avg */
@@ -853,58 +1097,57 @@ int main(int argc, char *argv[])
int inn, outn; /* Chanells for input and output spaces */
if (dovrml) {
- wrl = start_vrml(out_name, doaxes);
- start_line_set(wrl);
- }
-
- /* Open up the file for reading */
- if ((rd_fp = new_icmFileStd_name(iccname,"r")) == NULL)
- error("Write: Can't open file '%s'",iccname);
-
- if ((rd_icco = new_icc()) == NULL)
- error("Read: Creation of ICC object failed");
-
- /* Read the header and tag list */
- if ((rv = rd_icco->read(rd_icco,rd_fp,0)) != 0)
- error("Read: %d, %s",rv,rd_icco->err);
-
- /* Get the Fwd table, absolute with Lab override */
- if ((luo = rd_icco->get_luobj(rd_icco, icmFwd, intent,
- icSigLabData, icmLuOrdNorm)) == NULL) {
- error("%d, %s",rd_icco->errc, rd_icco->err);
+ wrl = new_vrml(out_name, doaxes, vrml_lab);
+ wrl->start_line_set(wrl, 0);
}
/* Get details of conversion (Arguments may be NULL if info not needed) */
luo->spaces(luo, NULL, &inn, NULL, &outn, NULL, NULL, NULL, NULL, NULL);
for (i = 0; i < npat; i++) {
- double out[3];
- double mxd;
+ double de, *out;
- /* Lookup the patch value in the profile */
- if (luo->lookup(luo, out, tpat[i].p) > 1)
- error("%d, %s",rd_icco->errc,rd_icco->err);
+ de = tpat[i].de;
+ out = tpat[i].pv;
if (verb > 1) {
+#ifdef HACK // Print XYZ
+#pragma message("!!!!!!!!!!!!!!!!!! profile/profcheck.c HACK enabled !!!!!!!!!!!!!!!")
+ double outxyz[3], vxyz[3];
+ icmLab2XYZ(&icmD50, outxyz, out);
+ icmLab2XYZ(&icmD50, vxyz, tpat[i].v);
+
+ printf("[%f] %s%s%s: %s -> %f %f %f should be %f %f %f\n",
+ de,
+ tpat[i].sid,
+ tpat[i].slo[0] != '\000' ? " @ " : "",
+ tpat[i].slo,
+ icmPdv(devchan, tpat[i].p),
+ outxyz[0],outxyz[1],outxyz[2],
+ vxyz[0],vxyz[1],vxyz[2]);
+#else
printf("[%f] %s%s%s: %s -> %f %f %f should be %f %f %f\n",
- cie2k ? icmCIE2K(tpat[i].v, out) :
- cie94 ? icmCIE94(tpat[i].v, out) : icmLabDE(tpat[i].v, out),
+ de,
tpat[i].sid,
tpat[i].slo[0] != '\000' ? " @ " : "",
tpat[i].slo,
icmPdv(devchan, tpat[i].p),
out[0],out[1],out[2],
tpat[i].v[0],tpat[i].v[1],tpat[i].v[2]);
+#endif
}
if (dovrml) {
- if (dominl && icmLabDE(tpat[i].v, out) < 0.5) {
+ int ix[2];
+ double p1[3], p2[3];
+
+ /* Add the vertexes */
+ if (dominl && de < 0.5) { /* Make a minimum length */
double cent[3], vec[3], vlen;
- double p1[3], p2[3];
/* Compute center */
icmAdd3(cent, tpat[i].v, out);
icmScale3(cent, cent, 0.5);
- if ((vlen = icmLabDE(tpat[i].v, out)) < 1e-6) {
+ if ((vlen = de) < 1e-6) {
vec[0] = 0.25; vec[1] = 0.0; vec[2] = 0.0;
} else {
icmSub3(vec, tpat[i].v, out);
@@ -912,36 +1155,36 @@ int main(int argc, char *argv[])
}
icmSub3(p1, cent, vec);
icmAdd3(p2, cent, vec);
- add_vertex(wrl, p1);
- add_vertex(wrl, p2);
} else {
- add_vertex(wrl, tpat[i].v);
- add_vertex(wrl, out);
+ icmCpy3(p1, tpat[i].v);
+ icmCpy3(p2, out);
}
- }
+ ix[0] = wrl->add_vertex(wrl, 0, p1);
+ ix[1] = wrl->add_vertex(wrl, 0, p2);
- /* Check the result */
- if (cie2k)
- mxd = icmCIE2K(tpat[i].v, out);
- else if (cie94)
- mxd = icmCIE94(tpat[i].v, out);
- else
- mxd = icmLabDE(tpat[i].v, out);
+ /* Add the line */
+ if (dodecol) { /* Lines with color determined by length */
+ double rgb[3];
+ DE2RGB(rgb, icmNorm33(p1, p2));
+ wrl->add_col_line(wrl, 0, ix, rgb);
- aerr += mxd;
- rerr += mxd * mxd;
+ } else { /* Natural color */
+ wrl->add_line(wrl, 0, ix);
+ }
+ }
+
+ /* Stats */
+ aerr += de;
+ rerr += de * de;
nsamps++;
- if (mxd > merr)
- merr = mxd;
+ if (de > merr)
+ merr = de;
}
if (dovrml) {
- if (dodecol)
- make_de_lines(wrl);
- else
- make_lines(wrl, 2);
- end_vrml(wrl);
+ wrl->make_lines_vc(wrl, 0, 0.0);
+ wrl->del(wrl);
}
printf("Profile check complete, errors%s: max. = %f, avg. = %f, RMS = %f\n",
cie2k ? "(CIEDE2000)" : cie94 ? " (CIE94)" : "", merr, aerr/nsamps, sqrt(rerr/nsamps));
@@ -975,13 +1218,13 @@ int main(int argc, char *argv[])
if (sortbypcs) {
/* Sort by pcs delta */
-#define HEAP_COMPARE(A,B) (A.dv < B.dv)
- HEAPSORT(pval, tpat, npat);
+#define HEAP_COMPARE(A,B) (A->dv < B->dv)
+ HEAPSORT(pval *, stpat, npat);
#undef HEAP_COMPARE
} else {
/* Sort by device delta */
-#define HEAP_COMPARE(A,B) (A.dp < B.dp)
- HEAPSORT(pval, tpat, npat);
+#define HEAP_COMPARE(A,B) (A->dp < B->dp)
+ HEAPSORT(pval *, stpat, npat);
#undef HEAP_COMPARE
}
@@ -1000,18 +1243,18 @@ int main(int argc, char *argv[])
for (i = 0; i < npat; i++) {
if (devspace == icSigCmykData) {
printf("%s: %f %f %f %f [%f] -> %f %f %f [%f]\n",
- tpat[i].sid,
- tpat[i].p[0],tpat[i].p[1],tpat[i].p[2],tpat[i].p[3],
- tpat[i].dp,
- tpat[i].v[0],tpat[i].v[1],tpat[i].v[2],
- tpat[i].dv);
+ stpat[i]->sid,
+ stpat[i]->p[0],stpat[i]->p[1],stpat[i]->p[2],stpat[i]->p[3],
+ stpat[i]->dp,
+ stpat[i]->v[0],stpat[i]->v[1],stpat[i]->v[2],
+ stpat[i]->dv);
} else { /* Assume RGB/CMY */
printf("%s: %f %f %f [%f] -> %f %f %f [%f]\n",
- tpat[i].sid,
- tpat[i].p[0],tpat[i].p[1],tpat[i].p[2],
- tpat[i].dp,
- tpat[i].v[0],tpat[i].v[1],tpat[i].v[2],
- tpat[i].dv);
+ stpat[i]->sid,
+ stpat[i]->p[0],stpat[i]->p[1],stpat[i]->p[2],
+ stpat[i]->dp,
+ stpat[i]->v[0],stpat[i]->v[1],stpat[i]->v[2],
+ stpat[i]->dv);
}
}
}
@@ -1024,292 +1267,13 @@ int main(int argc, char *argv[])
rd_fp->del(rd_fp);
}
+ icg->del(icg); /* Clean up */
+
return 0;
}
/* ------------------------------------------------ */
-/* Some simple functions to do basix VRML work */
-/* !!! Should change to plot/vrml lib !!! */
-
-#define GAMUT_LCENT 50.0
-static int npoints = 0;
-static int paloc = 0;
-static struct { double pp[3]; } *pary;
-
-static void Lab2RGB(double *out, double *in);
-static void DE2RGB(double *out, double in);
-
-FILE *start_vrml(char *name, int doaxes) {
- FILE *wrl;
-
- /* Define the axis boxes */
- struct {
- double x, y, z; /* Box center */
- double wx, wy, wz; /* Box size */
- double r, g, b; /* Box color */
- } axes[5] = {
- { 0, 0, 50-GAMUT_LCENT, 2, 2, 100, .7, .7, .7 }, /* L axis */
- { 50, 0, 0-GAMUT_LCENT, 100, 2, 2, 1, 0, 0 }, /* +a (red) axis */
- { 0, -50, 0-GAMUT_LCENT, 2, 100, 2, 0, 0, 1 }, /* -b (blue) axis */
- { -50, 0, 0-GAMUT_LCENT, 100, 2, 2, 0, 1, 0 }, /* -a (green) axis */
- { 0, 50, 0-GAMUT_LCENT, 2, 100, 2, 1, 1, 0 }, /* +b (yellow) axis */
- };
-
- /* Define the labels */
- struct {
- double x, y, z;
- double size;
- char *string;
- double r, g, b;
- } labels[6] = {
- { -2, 2, -GAMUT_LCENT + 100 + 10, 10, "+L*", .7, .7, .7 }, /* Top of L axis */
- { -2, 2, -GAMUT_LCENT - 10, 10, "0", .7, .7, .7 }, /* Bottom of L axis */
- { 100 + 5, -3, 0-GAMUT_LCENT, 10, "+a*", 1, 0, 0 }, /* +a (red) axis */
- { -5, -100 - 10, 0-GAMUT_LCENT, 10, "-b*", 0, 0, 1 }, /* -b (blue) axis */
- { -100 - 15, -3, 0-GAMUT_LCENT, 10, "-a*", 0, 0, 1 }, /* -a (green) axis */
- { -5, 100 + 5, 0-GAMUT_LCENT, 10, "+b*", 1, 1, 0 }, /* +b (yellow) axis */
- };
-
- if ((wrl = fopen(name,"w")) == NULL)
- error("Error opening VRML file '%s'\n",name);
-
- npoints = 0;
-
- fprintf(wrl,"#VRML V2.0 utf8\n");
- fprintf(wrl,"\n");
- fprintf(wrl,"# Created by the Argyll CMS\n");
- fprintf(wrl,"Transform {\n");
- fprintf(wrl,"children [\n");
- fprintf(wrl," NavigationInfo {\n");
- fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n");
- fprintf(wrl," } # We'll add our own light\n");
- fprintf(wrl,"\n");
- fprintf(wrl," DirectionalLight {\n");
- fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n");
- fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n");
- fprintf(wrl," }\n");
- fprintf(wrl,"\n");
- fprintf(wrl," Viewpoint {\n");
- fprintf(wrl," position 0 0 340 # Position we view from\n");
- fprintf(wrl," }\n");
- fprintf(wrl,"\n");
- if (doaxes != 0) {
- int n;
- fprintf(wrl," # Lab axes as boxes:\n");
- for (n = 0; n < 5; n++) {
- fprintf(wrl," Transform { translation %f %f %f\n", axes[n].x, axes[n].y, axes[n].z);
- fprintf(wrl," children [\n");
- fprintf(wrl," Shape{\n");
- fprintf(wrl," geometry Box { size %f %f %f }\n",
- axes[n].wx, axes[n].wy, axes[n].wz);
- fprintf(wrl," appearance Appearance { material Material ");
- fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[n].r, axes[n].g, axes[n].b);
- fprintf(wrl," }\n");
- fprintf(wrl," ]\n");
- fprintf(wrl," }\n");
- }
- fprintf(wrl," # Axes identification:\n");
- for (n = 0; n < 6; n++) {
- fprintf(wrl," Transform { translation %f %f %f\n", labels[n].x, labels[n].y, labels[n].z);
- fprintf(wrl," children [\n");
- fprintf(wrl," Shape{\n");
- fprintf(wrl," geometry Text { string [\"%s\"]\n",labels[n].string);
- fprintf(wrl," fontStyle FontStyle { family \"SANS\" style \"BOLD\" size %f }\n",
- labels[n].size);
- fprintf(wrl," }\n");
- fprintf(wrl," appearance Appearance { material Material ");
- fprintf(wrl,"{ diffuseColor %f %f %f} }\n", labels[n].r, labels[n].g, labels[n].b);
- fprintf(wrl," }\n");
- fprintf(wrl," ]\n");
- fprintf(wrl," }\n");
- }
- fprintf(wrl,"\n");
- }
-
- return wrl;
-}
-
-void
-start_line_set(FILE *wrl) {
-
- fprintf(wrl,"\n");
- fprintf(wrl,"Shape {\n");
- fprintf(wrl," geometry IndexedLineSet { \n");
- fprintf(wrl," coord Coordinate { \n");
- fprintf(wrl," point [\n");
-}
-
-void add_vertex(FILE *wrl, double pp[3]) {
-
- fprintf(wrl,"%f %f %f,\n",pp[1], pp[2], pp[0]-GAMUT_LCENT);
-
- if (paloc < (npoints+1)) {
- paloc = (paloc + 10) * 2;
- if (pary == NULL)
- pary = malloc(paloc * 3 * sizeof(double));
- else
- pary = realloc(pary, paloc * 3 * sizeof(double));
-
- if (pary == NULL)
- error ("Malloc failed");
- }
- pary[npoints].pp[0] = pp[0];
- pary[npoints].pp[1] = pp[1];
- pary[npoints].pp[2] = pp[2];
- npoints++;
-}
-
-
-void make_lines(FILE *wrl, int ppset) {
- int i, j;
-
- fprintf(wrl," ]\n");
- fprintf(wrl," }\n");
- fprintf(wrl," coordIndex [\n");
-
- for (i = 0; i < npoints;) {
- for (j = 0; j < ppset; j++, i++) {
- fprintf(wrl,"%d, ", i);
- }
- fprintf(wrl,"-1,\n");
- }
- fprintf(wrl," ]\n");
-
- /* Color */
- fprintf(wrl," colorPerVertex TRUE\n");
- fprintf(wrl," color Color {\n");
- fprintf(wrl," color [ # RGB colors of each vertex\n");
-
- for (i = 0; i < npoints; i++) {
- double rgb[3], Lab[3];
- Lab[0] = pary[i].pp[0];
- Lab[1] = pary[i].pp[1];
- Lab[2] = pary[i].pp[2];
- Lab2RGB(rgb, Lab);
- fprintf(wrl," %f %f %f,\n", rgb[0], rgb[1], rgb[2]);
- }
- fprintf(wrl," ] \n");
- fprintf(wrl," }\n");
- /* End color */
-
- fprintf(wrl," }\n");
- fprintf(wrl,"} # end shape\n");
-}
-
-/* Assume 2 ppset, and make line color prop to length */
-void make_de_lines(FILE *wrl) {
- int i, j;
-
- fprintf(wrl," ]\n");
- fprintf(wrl," }\n");
- fprintf(wrl," coordIndex [\n");
-
- for (i = 0; i < npoints;) {
- for (j = 0; j < 2; j++, i++) {
- fprintf(wrl,"%d, ", i);
- }
- fprintf(wrl,"-1,\n");
- }
- fprintf(wrl," ]\n");
-
- /* Color */
- fprintf(wrl," colorPerVertex TRUE\n");
- fprintf(wrl," color Color {\n");
- fprintf(wrl," color [ # RGB colors of each vertex\n");
-
- for (i = 0; i < npoints; i++) {
- double rgb[3], ss;
- for (ss = 0.0, j = 0; j < 3; j++) {
- double tt = (pary[i & ~1].pp[j] - pary[i | 1].pp[j]);
- ss += tt * tt;
- }
- ss = sqrt(ss);
- DE2RGB(rgb, ss);
- fprintf(wrl," %f %f %f,\n", rgb[0], rgb[1], rgb[2]);
- }
- fprintf(wrl," ] \n");
- fprintf(wrl," }\n");
- /* End color */
-
- fprintf(wrl," }\n");
- fprintf(wrl,"} # end shape\n");
-}
-
-void end_vrml(FILE *wrl) {
-
- fprintf(wrl,"\n");
- fprintf(wrl," ] # end of children for world\n");
- fprintf(wrl,"}\n");
-
- if (fclose(wrl) != 0)
- error("Error closing VRML file\n");
-}
-
-
-/* Convert a gamut Lab value to an RGB value for display purposes */
-static void
-Lab2RGB(double *out, double *in) {
- double L = in[0], a = in[1], b = in[2];
- double x,y,z,fx,fy,fz;
- double R, G, B;
-
- /* Scale so that black is visible */
- L = L * (100 - 40.0)/100.0 + 40.0;
-
- /* First convert to XYZ using D50 white point */
- if (L > 8.0) {
- fy = (L + 16.0)/116.0;
- y = pow(fy,3.0);
- } else {
- y = L/903.2963058;
- fy = 7.787036979 * y + 16.0/116.0;
- }
-
- fx = a/500.0 + fy;
- if (fx > 24.0/116.0)
- x = pow(fx,3.0);
- else
- x = (fx - 16.0/116.0)/7.787036979;
-
- fz = fy - b/200.0;
- if (fz > 24.0/116.0)
- z = pow(fz,3.0);
- else
- z = (fz - 16.0/116.0)/7.787036979;
-
- x *= 0.9642; /* Multiply by white point, D50 */
- y *= 1.0;
- z *= 0.8249;
-
- /* Now convert to sRGB values */
- R = x * 3.2410 + y * -1.5374 + z * -0.4986;
- G = x * -0.9692 + y * 1.8760 + z * 0.0416;
- B = x * 0.0556 + y * -0.2040 + z * 1.0570;
-
- if (R < 0.0)
- R = 0.0;
- else if (R > 1.0)
- R = 1.0;
-
- if (G < 0.0)
- G = 0.0;
- else if (G > 1.0)
- G = 1.0;
-
- if (B < 0.0)
- B = 0.0;
- else if (B > 1.0)
- B = 1.0;
-
- R = pow(R, 1.0/2.2);
- G = pow(G, 1.0/2.2);
- B = pow(B, 1.0/2.2);
-
- out[0] = R;
- out[1] = G;
- out[2] = B;
-}
/* Convert a delta E value into a signal color: */
static void
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 21:38:45 +0000