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+
+/*
+ * iccgamut
+ *
+ * Produce color surface gamut of an ICC profile.
+ *
+ * Author: Graeme W. Gill
+ * Date: 19/3/00
+ * Version: 1.00
+ *
+ * Copyright 2000 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.
+ */
+
+
+/*
+ * TTBD:
+ * To support CIACAM02 properly, need to cope with viewing parameters ?
+ */
+
+#define SURFACE_ONLY
+#define GAMRES 10.0 /* Default surface resolution */
+
+#define USE_CAM_CLIP_OPT /* Use CAM space to clip in */
+
+#define RGBRES 33 /* 33 */
+#define CMYKRES 17 /* 17 */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <string.h>
+#include <math.h>
+#include "copyright.h"
+#include "aconfig.h"
+#include "numlib.h"
+#include "icc.h"
+#include "xicc.h"
+#include "gamut.h"
+#include "counters.h"
+
+static void diag_gamut(icxLuBase *p, double detail, int doaxes,
+ double tlimit, double klimit, char *outname);
+
+void usage(char *diag) {
+ int i;
+ fprintf(stderr,"Create Lab/Jab gamut plot Version %s\n",ARGYLL_VERSION_STR);
+ fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n");
+ fprintf(stderr,"usage: iccgamut [options] profile\n");
+ if (diag != NULL)
+ fprintf(stderr,"Diagnostic: %s\n",diag);
+ fprintf(stderr," -v Verbose\n");
+ fprintf(stderr," -d sres Surface resolution details 1.0 - 50.0\n");
+ fprintf(stderr," -w emit VRML .wrl file as well as CGATS .gam file\n");
+ fprintf(stderr," -n Don't add VRML axes or white/black point\n");
+ fprintf(stderr," -k Add VRML markers for prim. & sec. \"cusp\" points\n");
+ fprintf(stderr," -f function f = forward*, b = backwards\n");
+ fprintf(stderr," -i intent p = perceptual, r = relative colorimetric,\n");
+ fprintf(stderr," s = saturation, a = absolute (default), d = profile default\n");
+// fprintf(stderr," P = absolute perceptual, S = absolute saturation\n");
+ fprintf(stderr," -p oride l = Lab_PCS (default), j = %s Appearance Jab\n",icxcam_description(cam_default));
+ fprintf(stderr," -o order n = normal (priority: lut > matrix > monochrome)\n");
+ fprintf(stderr," r = reverse (priority: monochrome > matrix > lut)\n");
+ fprintf(stderr," -l tlimit set total ink limit, 0 - 400%% (estimate by default)\n");
+ fprintf(stderr," -L klimit set black ink limit, 0 - 100%% (estimate by default)\n");
+ fprintf(stderr," -c viewcond set viewing conditions for %s,\n",icxcam_description(cam_default));
+ fprintf(stderr," either an enumerated choice, or a series of parameter:value changes\n");
+ for (i = 0; ; i++) {
+ icxViewCond vc;
+ if (xicc_enum_viewcond(NULL, &vc, i, NULL, 1, NULL) == -999)
+ break;
+
+ fprintf(stderr," %s\n",vc.desc);
+ }
+ fprintf(stderr," s:surround n = auto, a = average, m = dim, d = dark,\n");
+ fprintf(stderr," c = transparency (default average)\n");
+ fprintf(stderr," w:X:Y:Z Adapted white point as XYZ (default media white)\n");
+ fprintf(stderr," w:x:y Adapted white point as x, y\n");
+ fprintf(stderr," a:adaptation Adaptation luminance in cd.m^2 (default 50.0)\n");
+ fprintf(stderr," b:background Background %% of image luminance (default 20)\n");
+ fprintf(stderr," l:scenewhite Scene white in cd.m^2 if surround = auto (default 250)\n");
+ fprintf(stderr," f:flare Flare light %% of image luminance (default 1)\n");
+ fprintf(stderr," f:X:Y:Z Flare color as XYZ (default media white)\n");
+ fprintf(stderr," f:x:y Flare color as x, y\n");
+ fprintf(stderr," -s Create special cube surface topology plot\n");
+ fprintf(stderr,"\n");
+ exit(1);
+}
+
+int
+main(int argc, char *argv[]) {
+ int fa,nfa; /* argument we're looking at */
+ char prof_name[100];
+ char *xl, out_name[100];
+ icmFile *fp;
+ icc *icco;
+ xicc *xicco;
+ gamut *gam;
+ int verb = 0;
+ int rv = 0;
+ int vrml = 0;
+ int doaxes = 1;
+ int docusps = 0;
+ double gamres = GAMRES; /* Surface resolution */
+ int special = 0; /* Special surface plot */
+ int fl = 0; /* luobj flags */
+ icxInk ink; /* Ink parameters */
+ int tlimit = -1; /* Total ink limit as a % */
+ int klimit = -1; /* Black ink limit as a % */
+ icxViewCond vc; /* Viewing Condition for CIECAM */
+ int vc_e = -1; /* Enumerated viewing condition */
+ int vc_s = -1; /* Surround override */
+ double vc_wXYZ[3] = {-1.0, -1.0, -1.0}; /* Adapted white override in XYZ */
+ double vc_wxy[2] = {-1.0, -1.0}; /* Adapted white override in x,y */
+ double vc_a = -1.0; /* Adapted luminance */
+ double vc_b = -1.0; /* Background % overide */
+ double vc_l = -1.0; /* Scene luminance override */
+ double vc_f = -1.0; /* Flare % overide */
+ double vc_fXYZ[3] = {-1.0, -1.0, -1.0}; /* Flare color override in XYZ */
+ double vc_fxy[2] = {-1.0, -1.0}; /* Flare color override in x,y */
+
+ icxLuBase *luo;
+
+ /* Lookup parameters */
+ icmLookupFunc func = icmFwd; /* Default */
+ icRenderingIntent intent = -1; /* Default */
+ icColorSpaceSignature pcsor = icSigLabData; /* Default */
+ icmLookupOrder order = icmLuOrdNorm; /* Default */
+
+ error_program = argv[0];
+
+ if (argc < 2)
+ usage("Too few parameters");
+
+ /* Process the 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) < argc) {
+ if (argv[fa+1][0] != '-') {
+ nfa = fa + 1;
+ na = argv[nfa]; /* next is seperate non-flag argument */
+ }
+ }
+ }
+
+ if (argv[fa][1] == '?')
+ usage(NULL);
+
+ /* function */
+ else if (argv[fa][1] == 'f' || argv[fa][1] == 'F') {
+ fa = nfa;
+ if (na == NULL) usage("No parameter after flag -f");
+ switch (na[0]) {
+ case 'f':
+ case 'F':
+ func = icmFwd;
+ break;
+ case 'b':
+ case 'B':
+ func = icmBwd;
+ break;
+ default:
+ usage("Unrecognised parameter after flag -f");
+ }
+ }
+
+ /* Intent */
+ else if (argv[fa][1] == 'i' || argv[fa][1] == 'I') {
+ fa = nfa;
+ if (na == NULL) usage("No parameter after flag -i");
+ switch (na[0]) {
+ case 'd':
+ intent = icmDefaultIntent;
+ break;
+ case 'a':
+ intent = icAbsoluteColorimetric;
+ break;
+ case 'p':
+ intent = icPerceptual;
+ break;
+ case 'r':
+ intent = icRelativeColorimetric;
+ break;
+ case 's':
+ intent = icSaturation;
+ break;
+ /* Argyll special intents to check spaces underlying */
+ /* icxPerceptualAppearance & icxSaturationAppearance */
+ case 'P':
+ intent = icmAbsolutePerceptual;
+ break;
+ case 'S':
+ intent = icmAbsoluteSaturation;
+ break;
+ default:
+ usage("Unrecognised parameter after flag -i");
+ }
+ }
+
+ /* Search order */
+ else if (argv[fa][1] == 'o' || argv[fa][1] == 'O') {
+ fa = nfa;
+ if (na == NULL) usage("No parameter after flag -o");
+ switch (na[0]) {
+ case 'n':
+ case 'N':
+ order = icmLuOrdNorm;
+ break;
+ case 'r':
+ case 'R':
+ order = icmLuOrdRev;
+ break;
+ default:
+ usage("Unrecognised parameter after flag -o");
+ }
+ }
+
+ /* PCS override */
+ else if (argv[fa][1] == 'p' || argv[fa][1] == 'P') {
+ fa = nfa;
+ if (na == NULL) usage("No parameter after flag -p");
+ switch (na[0]) {
+ case 'l':
+ pcsor = icSigLabData;
+ break;
+ case 'j':
+ pcsor = icxSigJabData;
+ break;
+ default:
+ usage("Unrecognised parameter after flag -p");
+ }
+ }
+
+ /* Verbosity */
+ else if (argv[fa][1] == 'v' || argv[fa][1] == 'V') {
+ verb = 1;
+ }
+ /* VRML output */
+ else if (argv[fa][1] == 'w' || argv[fa][1] == 'W') {
+ vrml = 1;
+ }
+ /* No axis output in vrml */
+ else if (argv[fa][1] == 'n' || argv[fa][1] == 'N') {
+ doaxes = 0;
+ }
+ /* Do cusp markers in vrml */
+ else if (argv[fa][1] == 'k' || argv[fa][1] == 'K') {
+ docusps = 1;
+ }
+ /* Special */
+ else if (argv[fa][1] == 's' || argv[fa][1] == 'S') {
+ special = 1;
+ }
+ /* Ink limit */
+ else if (argv[fa][1] == 'l') {
+ fa = nfa;
+ if (na == NULL) usage("No parameter after flag -l");
+ tlimit = atoi(na);
+ }
+
+ else if (argv[fa][1] == 'L') {
+ fa = nfa;
+ if (na == NULL) usage("No parameter after flag -L");
+ klimit = atoi(na);
+ }
+
+
+ /* Surface Detail */
+ else if (argv[fa][1] == 'd' || argv[fa][1] == 'D') {
+ fa = nfa;
+ if (na == NULL) usage("No parameter after flag -d");
+ gamres = atof(na);
+ if (gamres < 0.1 || gamres > 50.0)
+ usage("Parameter after flag -d seems out of range");
+ }
+
+ /* Viewing conditions */
+ else if (argv[fa][1] == 'c' || argv[fa][1] == 'C') {
+ fa = nfa;
+ if (na == NULL) usage("No parameter after flag -c");
+#ifdef NEVER
+ if (na[0] >= '0' && na[0] <= '9') {
+ vc_e = atoi(na);
+ } else
+#endif
+ if (na[1] != ':') {
+ if ((vc_e = xicc_enum_viewcond(NULL, NULL, -2, na, 1, NULL)) == -999)
+ usage("Urecognised Enumerated Viewing conditions");
+ } else if (na[0] == 's' || na[0] == 'S') {
+ if (na[1] != ':')
+ usage("Unrecognised parameters after -cs");
+ if (na[2] == 'n' || na[2] == 'N') {
+ vc_s = vc_none; /* Automatic from Lv */
+ } else if (na[2] == 'a' || na[2] == 'A') {
+ vc_s = vc_average;
+ } else if (na[2] == 'm' || na[2] == 'M') {
+ vc_s = vc_dim;
+ } else if (na[2] == 'd' || na[2] == 'D') {
+ vc_s = vc_dark;
+ } else if (na[2] == 'c' || na[2] == 'C') {
+ vc_s = vc_cut_sheet;
+ } else
+ usage("Unrecognised parameters after -cs:");
+ } else if (na[0] == 'w' || na[0] == 'W') {
+ double x, y, z;
+ if (sscanf(na+1,":%lf:%lf:%lf",&x,&y,&z) == 3) {
+ vc_wXYZ[0] = x; vc_wXYZ[1] = y; vc_wXYZ[2] = z;
+ } else if (sscanf(na+1,":%lf:%lf",&x,&y) == 2) {
+ vc_wxy[0] = x; vc_wxy[1] = y;
+ } else
+ usage("Unrecognised parameters after -cw");
+ } else if (na[0] == 'a' || na[0] == 'A') {
+ if (na[1] != ':')
+ usage("Unrecognised parameters after -ca");
+ vc_a = atof(na+2);
+ } else if (na[0] == 'b' || na[0] == 'B') {
+ if (na[1] != ':')
+ usage("Unrecognised parameters after -cb");
+ vc_b = atof(na+2);
+ } else if (na[0] == 'l' || na[0] == 'L') {
+ if (na[1] != ':')
+ usage("Viewing conditions (-[cd]l) missing ':'");
+ vc_l = atof(na+2);
+ } else if (na[0] == 'f' || na[0] == 'F') {
+ double x, y, z;
+ if (sscanf(na+1,":%lf:%lf:%lf",&x,&y,&z) == 3) {
+ vc_fXYZ[0] = x; vc_fXYZ[1] = y; vc_fXYZ[2] = z;
+ } else if (sscanf(na+1,":%lf:%lf",&x,&y) == 2) {
+ vc_fxy[0] = x; vc_fxy[1] = y;
+ } else if (sscanf(na+1,":%lf",&x) == 1) {
+ vc_f = x;
+ } else
+ usage("Unrecognised parameters after -cf");
+ } else
+ usage("Unrecognised parameters after -c");
+ }
+ else
+ usage("Unknown flag");
+ } else
+ break;
+ }
+
+ if (intent == -1) {
+ if (pcsor == icxSigJabData)
+ intent = icRelativeColorimetric; /* Default to icxAppearance */
+ else
+ intent = icAbsoluteColorimetric; /* Default to icAbsoluteColorimetric */
+ }
+
+ if (fa >= argc || argv[fa][0] == '-') usage("Expected profile name");
+ strcpy(prof_name,argv[fa]);
+
+ /* Open up the profile for reading */
+ if ((fp = new_icmFileStd_name(prof_name,"r")) == NULL)
+ error ("Can't open file '%s'",prof_name);
+
+ if ((icco = new_icc()) == NULL)
+ error ("Creation of ICC object failed");
+
+ if ((rv = icco->read(icco,fp,0)) != 0)
+ error ("%d, %s",rv,icco->err);
+
+ if (verb) {
+ icmFile *op;
+ if ((op = new_icmFileStd_fp(stdout)) == NULL)
+ error ("Can't open stdout");
+ icco->header->dump(icco->header, op, 1);
+ op->del(op);
+ }
+
+ /* Wrap with an expanded icc */
+ if ((xicco = new_xicc(icco)) == NULL)
+ error ("Creation of xicc failed");
+
+ /* Set the ink limits */
+ icxDefaultLimits(xicco, &ink.tlimit, tlimit/100.0, &ink.klimit, klimit/100.0);
+
+ if (verb) {
+ if (ink.tlimit >= 0.0)
+ printf("Total ink limit assumed is %3.0f%%\n",100.0 * ink.tlimit);
+ if (ink.klimit >= 0.0)
+ printf("Black ink limit assumed is %3.0f%%\n",100.0 * ink.klimit);
+ }
+
+ /* Setup a safe ink generation (not used) */
+ ink.KonlyLmin = 0; /* Use normal black Lmin for locus */
+ ink.k_rule = icxKluma5k;
+ ink.c.Ksmth = ICXINKDEFSMTH; /* Default smoothing */
+ ink.c.Kskew = ICXINKDEFSKEW; /* default curve skew */
+ ink.c.Kstle = 0.0; /* Min K at white end */
+ ink.c.Kstpo = 0.0; /* Start of transition is at white */
+ ink.c.Kenle = 1.0; /* Max K at black end */
+ ink.c.Kenpo = 1.0; /* End transition at black */
+ ink.c.Kshap = 1.0; /* Linear transition */
+
+ /* Setup the default viewing conditions */
+ if (xicc_enum_viewcond(xicco, &vc, -1, NULL, 0, NULL) == -2)
+ error ("%d, %s",xicco->errc, xicco->err);
+
+ if (vc_e != -1)
+ if (xicc_enum_viewcond(xicco, &vc, vc_e, NULL, 0, NULL) == -2)
+ error ("%d, %s",xicco->errc, xicco->err);
+ if (vc_s >= 0)
+ vc.Ev = vc_s;
+ if (vc_wXYZ[1] > 0.0) {
+ /* Normalise it to current media white */
+ vc.Wxyz[0] = vc_wXYZ[0]/vc_wXYZ[1] * vc.Wxyz[1];
+ vc.Wxyz[2] = vc_wXYZ[2]/vc_wXYZ[1] * vc.Wxyz[1];
+ }
+ if (vc_wxy[0] >= 0.0) {
+ double x = vc_wxy[0];
+ double y = vc_wxy[1]; /* If Y == 1.0, then X+Y+Z = 1/y */
+ double z = 1.0 - x - y;
+ vc.Wxyz[0] = x/y * vc.Wxyz[1];
+ vc.Wxyz[2] = z/y * vc.Wxyz[1];
+ }
+ if (vc_a >= 0.0)
+ vc.La = vc_a;
+ if (vc_b >= 0.0)
+ vc.Yb = vc_b/100.0;
+ if (vc_l >= 0.0)
+ vc.Lv = vc_l;
+ if (vc_f >= 0.0)
+ vc.Yf = vc_f/100.0;
+ if (vc_fXYZ[1] > 0.0) {
+ /* Normalise it to current media white */
+ vc.Fxyz[0] = vc_fXYZ[0]/vc_fXYZ[1] * vc.Fxyz[1];
+ vc.Fxyz[2] = vc_fXYZ[2]/vc_fXYZ[1] * vc.Fxyz[1];
+ }
+ if (vc_fxy[0] >= 0.0) {
+ double x = vc_fxy[0];
+ double y = vc_fxy[1]; /* If Y == 1.0, then X+Y+Z = 1/y */
+ double z = 1.0 - x - y;
+ vc.Fxyz[0] = x/y * vc.Fxyz[1];
+ vc.Fxyz[2] = z/y * vc.Fxyz[1];
+ }
+
+ fl |= ICX_CLIP_NEAREST; /* Don't setup rev uncessarily */
+
+#ifdef USE_CAM_CLIP_OPT
+ fl |= ICX_CAM_CLIP;
+#endif
+
+#ifdef NEVER
+ printf("~1 output space flags = 0x%x\n",fl);
+ printf("~1 output space intent = %s\n",icx2str(icmRenderingIntent,intent));
+ printf("~1 output space pcs = %s\n",icx2str(icmColorSpaceSignature,pcsor));
+ printf("~1 output space viewing conditions =\n"); xicc_dump_viewcond(&vc);
+ printf("~1 output space inking =\n"); xicc_dump_inking(&ink);
+#endif
+
+ strcpy(out_name, prof_name);
+ if ((xl = strrchr(out_name, '.')) == NULL) /* Figure where extention is */
+ xl = out_name + strlen(out_name);
+
+ strcpy(xl,".gam");
+
+ /* Get a expanded color conversion object */
+ if ((luo = xicco->get_luobj(xicco, fl, func, intent, pcsor, order, &vc, &ink)) == NULL)
+ error ("%d, %s",xicco->errc, xicco->err);
+
+ if (special) {
+ if (func != icmFwd)
+ error("Must be forward direction for special plot");
+ strcpy(xl,".wrl");
+ diag_gamut(luo, gamres, doaxes, tlimit/100.0, klimit/100.0, out_name);
+ } else {
+ /* Creat a gamut surface */
+ if ((gam = luo->get_gamut(luo, gamres)) == NULL)
+ error ("%d, %s",xicco->errc, xicco->err);
+
+ if (gam->write_gam(gam,out_name))
+ error ("write gamut failed on '%s'",out_name);
+
+ if (vrml) {
+ strcpy(xl,".wrl");
+ if (gam->write_vrml(gam,out_name, doaxes, docusps))
+ error ("write vrml failed on '%s'",out_name);
+ }
+
+ if (verb) {
+ printf("Total volume of gamut is %f cubic colorspace units\n",gam->volume(gam));
+ }
+ gam->del(gam);
+ }
+
+ luo->del(luo); /* Done with lookup object */
+
+ xicco->del(xicco); /* Expansion wrapper */
+ icco->del(icco); /* Icc */
+ fp->del(fp);
+
+
+ return 0;
+}
+
+/* -------------------------------------------- */
+/* Code for special gamut surface plot */
+
+#define GAMUT_LCENT 50
+
+/* Create a diagnostic gamut, illustrating */
+/* device space "fold-over" */
+static void diag_gamut(
+icxLuBase *p, /* Lookup object */
+double detail, /* Gamut resolution detail */
+int doaxes, /* Do Lab axes */
+double tlimit, /* Total ink limit */
+double klimit, /* K ink limit */
+char *outname /* Output VRML file */
+) {
+ int i, j;
+ FILE *wrl;
+ struct {
+ double x, y, z;
+ double wx, wy, wz;
+ double r, g, b;
+ } 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 */
+ };
+ int vix; /* Vertex index */
+ DCOUNT(coa, MXDI, p->inputChan, 0, 0, 2);
+
+ double col[1 << MXDI][3]; /* Color asigned to each major vertex */
+ int res;
+
+ if (tlimit < 0.0)
+ tlimit = p->inputChan;
+ if (klimit < 0.0)
+ klimit = 1.0;
+
+ /* Asign some colors to the combination nodes */
+ for (i = 0; i < (1 << p->inputChan); i++) {
+ int a, b, c, j;
+ double h;
+
+ j = (i ^ 0x5a5a5a5a) % (1 << p->inputChan);
+ h = (double)j/((1 << p->inputChan)-1);
+
+ /* Make fully saturated with chosen hue */
+ if (h < 1.0/3.0) {
+ a = 0;
+ b = 1;
+ c = 2;
+ } else if (h < 2.0/3.0) {
+ a = 1;
+ b = 2;
+ c = 0;
+ h -= 1.0/3.0;
+ } else {
+ a = 2;
+ b = 0;
+ c = 1;
+ h -= 2.0/3.0;
+ }
+ h *= 3.0;
+
+ col[i][a] = (1.0 - h);
+ col[i][b] = h;
+ col[i][c] = d_rand(0.0, 1.0);
+ }
+
+ if (detail > 0.0)
+ res = (int)(100.0/detail); /* Establish an appropriate sampling density */
+ else
+ res = 4;
+
+ if (res < 2)
+ res = 2;
+
+ if ((wrl = fopen(outname,"w")) == NULL)
+ error("Error opening wrl output file '%s'",outname);
+
+ /* Spit out a VRML 2 Object surface of gamut */
+ 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) {
+ fprintf(wrl,"# Lab axes as boxes:\n");
+ for (i = 0; i < 5; i++) {
+ fprintf(wrl,"Transform { translation %f %f %f\n", axes[i].x, axes[i].y, axes[i].z);
+ fprintf(wrl,"\tchildren [\n");
+ fprintf(wrl,"\t\tShape{\n");
+ fprintf(wrl,"\t\t\tgeometry Box { size %f %f %f }\n",
+ axes[i].wx, axes[i].wy, axes[i].wz);
+ fprintf(wrl,"\t\t\tappearance Appearance { material Material ");
+ fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[i].r, axes[i].g, axes[i].b);
+ fprintf(wrl,"\t\t}\n");
+ fprintf(wrl,"\t]\n");
+ fprintf(wrl,"}\n");
+ }
+ fprintf(wrl,"\n");
+ }
+ fprintf(wrl," Transform {\n");
+ fprintf(wrl," translation 0 0 0\n");
+ fprintf(wrl," children [\n");
+ fprintf(wrl," Shape { \n");
+ fprintf(wrl," geometry IndexedFaceSet {\n");
+ fprintf(wrl," solid FALSE\n"); /* Don't back face cull */
+ fprintf(wrl," convex TRUE\n");
+ fprintf(wrl,"\n");
+ fprintf(wrl," coord Coordinate { \n");
+ fprintf(wrl," point [ # Verticy coordinates\n");
+
+
+ /* Itterate over all the faces in the device space */
+ /* generating the vertx positions. */
+ DC_INIT(coa);
+ vix = 0;
+ while(!DC_DONE(coa)) {
+ int e, m1, m2;
+ double in[MXDI];
+ double inl[MXDI];
+ double out[3];
+ double sum;
+
+ /* Scan only device surface */
+ for (m1 = 0; m1 < p->inputChan; m1++) {
+ if (coa[m1] != 0)
+ continue;
+
+ for (m2 = m1 + 1; m2 < p->inputChan; m2++) {
+ int x, y;
+
+ if (coa[m2] != 0)
+ continue;
+
+ for (e = 0; e < p->inputChan; e++)
+ in[e] = (double)coa[e]; /* Base value */
+
+ /* Scan over 2D device space face */
+ for (x = 0; x < res; x++) { /* step over surface */
+ in[m1] = x/(res - 1.0);
+ for (y = 0; y < res; y++) {
+ in[m2] = y/(res - 1.0);
+
+ for (sum = 0.0, e = 0; e < p->inputChan; e++) {
+ sum += inl[e] = in[e];
+ }
+ if (sum >= tlimit) {
+ for (e = 0; e < p->inputChan; e++)
+ inl[e] *= tlimit/sum;
+ }
+ if (p->inputChan >= 3 && inl[3] >= klimit)
+ inl[3] = klimit;
+ p->lookup(p, out, inl);
+ fprintf(wrl,"%f %f %f,\n",out[1], out[2], out[0]-50.0);
+ vix++;
+ }
+ }
+ }
+ }
+ /* Increment index within block */
+ DC_INC(coa);
+ }
+
+ fprintf(wrl," ]\n");
+ fprintf(wrl," }\n");
+ fprintf(wrl,"\n");
+ fprintf(wrl," coordIndex [ # Indexes of poligon Verticies \n");
+
+ /* Itterate over all the faces in the device space */
+ /* generating the quadrilateral indexes. */
+ DC_INIT(coa);
+ vix = 0;
+ while(!DC_DONE(coa)) {
+ int e, m1, m2;
+ double in[MXDI];
+
+ /* Scan only device surface */
+ for (m1 = 0; m1 < p->inputChan; m1++) {
+ if (coa[m1] != 0)
+ continue;
+
+ for (m2 = m1 + 1; m2 < p->inputChan; m2++) {
+ int x, y;
+
+ if (coa[m2] != 0)
+ continue;
+
+ for (e = 0; e < p->inputChan; e++)
+ in[e] = (double)coa[e]; /* Base value */
+
+ /* Scan over 2D device space face */
+ /* Only output quads under the total ink limit */
+ /* Scan over 2D device space face */
+ for (x = 0; x < res; x++) { /* step over surface */
+ for (y = 0; y < res; y++) {
+ if (x < (res-1) && y < (res-1)) {
+ fprintf(wrl,"%d, %d, %d, %d, -1\n",
+ vix, vix + 1, vix + 1 + res, vix + res);
+ }
+ vix++;
+ }
+ }
+ }
+ }
+ /* Increment index within block */
+ DC_INC(coa);
+ }
+
+ fprintf(wrl," ]\n");
+ fprintf(wrl,"\n");
+ fprintf(wrl," colorPerVertex TRUE\n");
+ fprintf(wrl," color Color {\n");
+ fprintf(wrl," color [ # RGB colors of each vertex\n");
+
+ /* Itterate over all the faces in the device space */
+ /* generating the vertx colors. */
+ DC_INIT(coa);
+ vix = 0;
+ while(!DC_DONE(coa)) {
+ int e, m1, m2;
+ double in[MXDI];
+
+ /* Scan only device surface */
+ for (m1 = 0; m1 < p->inputChan; m1++) {
+ if (coa[m1] != 0)
+ continue;
+
+ for (m2 = m1 + 1; m2 < p->inputChan; m2++) {
+ int x, y;
+
+ if (coa[m2] != 0)
+ continue;
+
+ for (e = 0; e < p->inputChan; e++)
+ in[e] = (double)coa[e]; /* Base value */
+
+ /* Scan over 2D device space face */
+ for (x = 0; x < res; x++) { /* step over surface */
+ double xb = x/(res - 1.0);
+ for (y = 0; y < res; y++) {
+ int v0, v1, v2, v3;
+ double yb = y/(res - 1.0);
+ double rgb[3];
+
+ for (v0 = 0, e = 0; e < p->inputChan; e++)
+ v0 |= coa[e] ? (1 << e) : 0; /* Binary index */
+
+ v1 = v0 | (1 << m2); /* Y offset */
+ v2 = v0 | (1 << m2) | (1 << m1); /* X+Y offset */
+ v3 = v0 | (1 << m1); /* Y offset */
+
+ /* Linear interp between the main verticies */
+ for (j = 0; j < 3; j++) {
+ rgb[j] = (1.0 - yb) * (1.0 - xb) * col[v0][j]
+ + yb * (1.0 - xb) * col[v1][j]
+ + (1.0 - yb) * xb * col[v3][j]
+ + yb * xb * col[v2][j];
+ }
+ fprintf(wrl,"%f %f %f,\n",rgb[1], rgb[2], rgb[0]);
+ vix++;
+ }
+ }
+ }
+ }
+ /* Increment index within block */
+ DC_INC(coa);
+ }
+
+ fprintf(wrl," ] \n");
+ fprintf(wrl," }\n");
+ fprintf(wrl," }\n");
+ fprintf(wrl," appearance Appearance { \n");
+ fprintf(wrl," material Material {\n");
+ fprintf(wrl," transparency 0.0\n");
+ fprintf(wrl," ambientIntensity 0.3\n");
+ fprintf(wrl," shininess 0.5\n");
+ fprintf(wrl," }\n");
+ fprintf(wrl," }\n");
+ fprintf(wrl," } # end Shape\n");
+ fprintf(wrl," ]\n");
+ fprintf(wrl," }\n");
+
+ fprintf(wrl,"\n");
+ fprintf(wrl," ] # end of children for world\n");
+ fprintf(wrl,"}\n");
+
+ if (fclose(wrl) != 0)
+ error("Error closing output file '%s'",outname);
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 12:59:10 +0000