int
main(int argc, char *argv[]) {
char *me, *outS;
hestOpt *hopt;
hestParm *hparm;
airArray *mop;
int fidx, aidx, num, frames;
double psc, width[2], arrowWidth, lineWidth, angle, seglen,
x0, y0, x1, y1, cc, ss;
wheelPS wps;
char filename[AIR_STRLEN_MED];
me = argv[0];
mop = airMopNew();
hparm = hestParmNew();
hparm->elideMultipleNonExistFloatDefault = AIR_TRUE;
hopt = NULL;
airMopAdd(mop, hparm, (airMopper)hestParmFree, airMopAlways);
hestOptAdd(&hopt, "w", "arrowWidth lineWidth", airTypeDouble, 2, 2, width,
"1.0 0.2", "widths");
hestOptAdd(&hopt, "n", "number", airTypeInt, 1, 1, &num, "10",
"number of arrows");
hestOptAdd(&hopt, "f", "frames", airTypeInt, 1, 1, &frames, "10",
"number of frames");
hestOptAdd(&hopt, "psc", "scale", airTypeDouble, 1, 1, &psc, "200",
"scaling from world space to PostScript points");
hestOptAdd(&hopt, "o", "prefix", airTypeString, 1, 1, &outS, NULL,
"prefix of file names");
hestParseOrDie(hopt, argc-1, argv+1, hparm,
me, interInfo, AIR_TRUE, AIR_TRUE, AIR_TRUE);
airMopAdd(mop, hopt, (airMopper)hestOptFree, airMopAlways);
airMopAdd(mop, hopt, (airMopper)hestParseFree, airMopAlways);
for (fidx=0; fidx<frames; fidx++) {
sprintf(filename, "%s%03d.eps", outS, fidx);
if (!(wps.file = airFopen(filename, stdout, "wb"))) {
fprintf(stderr, "%s: couldn't open output file\n", me);
airMopError(mop);
return 1;
}
lineWidth = width[0];
arrowWidth = width[1];
wps.psc = psc;
ELL_4V_SET(wps.bbox, -0.45, -0.85, 1.1, 0.85);
wheelPreamble(&wps);
fprintf(wps.file, "0 setlinecap\n");
wheelGray(&wps, 0.4);
wheelWidth(&wps, lineWidth);
x0 = 0;
y0 = 0;
seglen = 1.0/num;
angle = AIR_AFFINE(0, fidx, frames, 0, 2*AIR_PI);
for (aidx=1; aidx<=num; aidx++) {
cc = cos(angle*aidx)*seglen;
ss = sin(angle*aidx)*seglen;
x1 = x0 + 0.90*cc;
y1 = y0 + 0.90*ss;
wheelArrow(&wps, x0, y0, x1, y1, arrowWidth, arrowWidth*0.4);
x0 += cc;
y0 += ss;
}
wheelGray(&wps, 0.0);
wheelArrow(&wps, 0, 0, x0, y0, arrowWidth, arrowWidth*0.4);
wheelEpilog(&wps);
airFclose(wps.file);
}
airMopOkay(mop);
exit(0);
}
int
main(int argc, char *argv[]) {
char *me, *outS;
hestOpt *hopt;
hestParm *hparm;
airArray *mop;
double tval[6], ABC[3], geom[3], rnth[3], RA, norm, mu2, tmpr=0, tmpa=0,
xroot[3], yroot[3], bbox[4], htick, htth, psc;
wheelPS wps;
int correct, labels, drawRA;
me = argv[0];
mop = airMopNew();
hparm = hestParmNew();
hparm->elideMultipleNonExistFloatDefault = AIR_TRUE;
hopt = NULL;
airMopAdd(mop, hparm, (airMopper)hestParmFree, airMopAlways);
hestOptAdd(&hopt, "t", "a b c d e f", airTypeDouble, 6, 6, tval,
"nan nan nan nan nan nan nan",
"six values of symmetric tensors");
hestOptAdd(&hopt, "ABC", "A B C", airTypeDouble, 3, 3, ABC, "nan nan nan",
"directly give coefficients of cubic polynomial "
"(and override info from \"-t\")");
hestOptAdd(&hopt, "g", "c rad th", airTypeDouble, 3, 3, geom, "nan nan nan",
"directly give center, radius, and angle (in degrees) of wheel "
"(and override info from \"-t\" and \"-ABC\"");
hestOptAdd(&hopt, "p", "RA norm th", airTypeDouble, 3, 3, rnth,
"nan nan nan",
"directly give RA, norm, and angle (in degrees) of tensor "
"(and override info from \"-t\", \"-ABC\", and \"-geom\"");
hestOptAdd(&hopt, "correct", NULL, airTypeInt, 0, 0, &correct, NULL,
"when using \"-g\", be honest about what the estimated "
"acos(sqrt(2)*skew)/3 is going to be");
hestOptAdd(&hopt, "labels", NULL, airTypeInt, 0, 0, &labels, NULL,
"put little labels on things; fix with psfrag in LaTeX");
hestOptAdd(&hopt, "RA", NULL, airTypeInt, 0, 0, &drawRA, NULL,
"draw extra geometry associated with RA");
hestOptAdd(&hopt, "htick", "pos", airTypeDouble, 1, 1, &htick, "nan",
"location of single tick mark on horizontal axis");
hestOptAdd(&hopt, "htth", "thick", airTypeDouble, 1, 1, &htth, "3",
"thickness of horizontal tick");
hestOptAdd(&hopt, "bb", "bbox", airTypeDouble, 4, 4, bbox,
"nan nan nan nan", "bounding box, in world space around the "
"region of the graph that should be drawn to EPS");
hestOptAdd(&hopt, "ysc", "scale", airTypeDouble, 1, 1, &(wps.yscale), "0.5",
"scaling on Y axis for drawing graph of characteristic "
"polynomial, or \"0\" to turn this off.");
hestOptAdd(&hopt, "psc", "scale", airTypeDouble, 1, 1, &psc, "100",
"scaling from world space to PostScript points");
hestOptAdd(&hopt, "o", "filename", airTypeString, 1, 1, &outS, "-",
"file to write EPS output to");
hestParseOrDie(hopt, argc-1, argv+1, hparm,
me, wheelInfo, AIR_TRUE, AIR_TRUE, AIR_TRUE);
airMopAdd(mop, hopt, (airMopper)hestOptFree, airMopAlways);
airMopAdd(mop, hopt, (airMopper)hestParseFree, airMopAlways);
if (!(wps.file = airFopen(outS, stdout, "wb"))) {
fprintf(stderr, "%s: couldn't open output file\n", me);
airMopError(mop); return 1;
}
airMopAdd(mop, wps.file, (airMopper)airFclose, airMopAlways);
if (AIR_EXISTS(rnth[0])) {
RA = rnth[0];
norm = rnth[1];
mu2 = (norm*norm/3)*(2*RA*RA/(1 + 2*RA*RA));
geom[0] = sqrt(mu2)/(sqrt(2)*RA);
geom[1] = sqrt(2*mu2);
geom[2] = rnth[2];
wheelGeomToRoot(xroot, yroot, geom);
wheelGeomToABC(ABC, geom[0], geom[1], geom[2]);
} else if (AIR_EXISTS(geom[0])) {
wheelGeomToRoot(xroot, yroot, geom);
if (correct) {
tval[0] = xroot[0];
tval[1] = tval[2] = 0;
tval[3] = xroot[1];
tval[4] = 0;
tval[5] = xroot[2];
wheelTenToGeom(geom,
tval[0], tval[1], tval[2], tval[3], tval[4], tval[5]);
wheelGeomToRoot(xroot, yroot, geom);
}
wheelGeomToABC(ABC, geom[0], geom[1], geom[2]);
wheelGeomToRNTH(rnth, geom[0], geom[1], geom[2]);
} else if (AIR_EXISTS(ABC[0])) {
wheelABCToGeom(geom, ABC[0], ABC[1], ABC[2]);
wheelGeomToRNTH(rnth, geom[0], geom[1], geom[2]);
wheelGeomToRoot(xroot, yroot, geom);
} else {
wheelTenToGeom(geom, tval[0], tval[1], tval[2], tval[3], tval[4], tval[5]);
wheelGeomToRoot(xroot, yroot, geom);
wheelGeomToRNTH(rnth, geom[0], geom[1], geom[2]);
wheelGeomToABC(ABC, geom[0], geom[1], geom[2]);
}
fprintf(stderr, "%s: RNTH: %g %g %g\n", me, rnth[0], rnth[1], rnth[2]);
fprintf(stderr, "%s: ABC: %g %g %g\n", me, ABC[0], ABC[1], ABC[2]);
fprintf(stderr, "%s: xroot: %g %g %g\n",
me, xroot[0], xroot[1], xroot[2]);
fprintf(stderr, "%s: geom: %g %g %g\n", me, geom[0], geom[1], geom[2]);
if (!AIR_EXISTS(bbox[0])) {
bbox[0] = geom[0] - 1.2*geom[1];
bbox[1] = - 1.2*geom[1];
bbox[2] = geom[0] + 1.2*geom[1];
bbox[3] = + 1.2*geom[1];
fprintf(stderr, "%s: bbox %g %g %g %g\n", me,
bbox[0], bbox[1], bbox[2], bbox[3]);
}
wps.psc = psc;
ELL_4V_COPY(wps.bbox, bbox);
wheelPreamble(&wps);
/* graph */
if (wps.yscale) {
wheelWidth(&wps, 4);
wheelGray(&wps, 0.5);
wheelGraph(&wps, xroot[0], xroot[1], xroot[2]);
}
/* axis */
wheelWidth(&wps, 2);
wheelGray(&wps, 0.0);
wheelLine(&wps, bbox[0], 0, bbox[2], 0);
/* circle */
wheelWidth(&wps, 3);
wheelCircle(&wps, geom[0], 0, geom[1]);
/* spokes */
wheelWidth(&wps, 4);
wheelLine(&wps, geom[0], 0, xroot[0], yroot[0]);
wheelLine(&wps, geom[0], 0, xroot[1], yroot[1]);
wheelLine(&wps, geom[0], 0, xroot[2], yroot[2]);
/* dots at spoke ends */
wheelDot(&wps, xroot[0], yroot[0], 0.025*geom[1]);
wheelDot(&wps, xroot[1], yroot[1], 0.025*geom[1]);
wheelDot(&wps, xroot[2], yroot[2], 0.025*geom[1]);
/* lines from dots to roots */
wheelWidth(&wps, 2);
fprintf(wps.file, "gsave\n");
fprintf(wps.file, "[2 4] 0 setdash\n");
wheelLine(&wps, xroot[0], 0, xroot[0], yroot[0]);
wheelLine(&wps, xroot[1], 0, xroot[1], yroot[1]);
wheelLine(&wps, xroot[2], 0, xroot[2], yroot[2]);
fprintf(wps.file, "grestore\n");
/* tickmarks */
wheelWidth(&wps, 6);
wheelLine(&wps, xroot[0], -0.02*geom[1], xroot[0], 0.02*geom[1]);
wheelLine(&wps, xroot[1], -0.02*geom[1], xroot[1], 0.02*geom[1]);
wheelLine(&wps, xroot[2], -0.02*geom[1], xroot[2], 0.02*geom[1]);
if (AIR_EXISTS(htick)) {
wheelWidth(&wps, htth);
wheelLine(&wps, htick, -0.04, htick, 0.04);
}
/* RA angle */
if (drawRA) {
wheelWidth(&wps, 3);
wheelLine(&wps, 0.0, 0.0, geom[0], geom[1]);
wheelWidth(&wps, 2);
fprintf(wps.file, "gsave\n");
fprintf(wps.file, "[2 4] 0 setdash\n");
wheelLine(&wps, geom[0], geom[1], geom[0], 0);
fprintf(wps.file, "grestore\n");
}
/* labels, if wanted */
if (labels) {
fprintf(wps.file, "/Helvetica findfont 20 scalefont setfont\n");
wheelLabel(&wps, geom[0], 0, "center");
wheelLine(&wps, geom[0], -0.02*geom[1], geom[0], 0.02*geom[1]);
wheelLabel(&wps, (geom[0] + xroot[0])/1.8, yroot[0]/1.8, "radius");
wheelWidth(&wps, 2);
wheelArc(&wps, geom[0], 0, geom[1]/2, 0, geom[2]);
wheelLabel(&wps, geom[0] + geom[1]*cos(AIR_PI*geom[2]/180/2)/2.5,
geom[1]*sin(AIR_PI*geom[2]/180/2)/2.5, "theta");
if (drawRA) {
tmpr = sqrt(geom[0]*geom[0] + geom[1]*geom[1]);
tmpa = atan(2.0*rnth[0]);
wheelWidth(&wps, 2);
wheelArc(&wps, 0, 0, 0.2*tmpr, 0, 180*tmpa/AIR_PI);
wheelLabel(&wps, 0.2*tmpr*cos(tmpa/2), 0.2*tmpr*sin(tmpa/2), "phi");
}
wheelLabel(&wps, xroot[0], yroot[0], "spoke0");
wheelLabel(&wps, xroot[1], yroot[1], "spoke-");
wheelLabel(&wps, xroot[2], yroot[2], "spoke+");
wheelLabel(&wps, xroot[0], 0, "root0");
wheelLabel(&wps, xroot[1], 0, "root-");
wheelLabel(&wps, xroot[2], 0, "root+");
}
wheelEpilog(&wps);
airMopOkay(mop);
exit(0);
}