int plot_radec_plot(const char* command, cairo_t* cairo,
plot_args_t* pargs, void* baton) {
plotradec_t* args = (plotradec_t*)baton;
// Plot it!
rd_t myrd;
rd_t* rd = NULL;
//rd_t* freerd = NULL;
int Nrd;
int i;
if (!pargs->wcs) {
ERROR("plotting radec but not plot_wcs has been set.");
return -1;
}
if (args->fn && dl_size(args->radecvals)) {
ERROR("Can only plot one of rdlist filename and radec_vals");
return -1;
}
if (!args->fn && !dl_size(args->radecvals)) {
ERROR("Neither rdlist filename nor radec_vals given!");
return -1;
}
plotstuff_builtin_apply(cairo, pargs);
rd = get_rd(args, &myrd);
if (!rd) return -1;
Nrd = rd_n(rd);
// If N is specified, apply it as a max.
if (args->nobjs)
Nrd = MIN(Nrd, args->nobjs);
// Plot markers.
for (i=args->firstobj; i<Nrd; i++) {
double x,y;
double ra = rd_getra(rd, i);
double dec = rd_getdec(rd, i);
if (!plotstuff_radec2xy(pargs, ra, dec, &x, &y))
continue;
if (!plotstuff_marker_in_bounds(pargs, x, y))
continue;
plotstuff_stack_marker(pargs, x-1, y-1);
}
plotstuff_plot_stack(pargs, cairo);
if (rd != &myrd)
rd_free(rd);
//rd_free(freerd);
return 0;
}
static rd_t* get_rd(plotradec_t* args, rd_t* myrd) {
rdlist_t* rdls = NULL;
rd_t* rd = NULL;
if (args->fn) {
// Open rdlist.
rdls = rdlist_open(args->fn);
if (!rdls) {
ERROR("Failed to open rdlist from file \"%s\"", args->fn);
return NULL;
}
if (args->racol)
rdlist_set_raname(rdls, args->racol);
if (args->deccol)
rdlist_set_decname(rdls, args->deccol);
// Find number of entries in rdlist.
rd = rdlist_read_field_num(rdls, args->ext, NULL);
//freerd = rd;
rdlist_close(rdls);
if (!rd) {
ERROR("Failed to read FITS extension %i from file %s.\n", args->ext, args->fn);
return NULL;
}
} else {
assert(dl_size(args->radecvals));
rd_from_dl(myrd, args->radecvals);
rd = myrd;
}
return rd;
}
int main(int argc, char** args) {
int c;
dl* xys = dl_new(16);
dl* radecs = dl_new(16);
dl* otherradecs = dl_new(16);
double* xy;
double* xyz;
int i, N;
tan_t tan, tan2, tan3;
int W=0, H=0;
double crpix[] = { HUGE_VAL, HUGE_VAL };
int loglvl = LOG_MSG;
FILE* logstream = stderr;
int order = 1;
while ((c = getopt(argc, args, OPTIONS)) != -1) {
switch (c) {
case 'v':
loglvl++;
break;
case 'h':
exit(0);
case 'o':
order = atoi(optarg);
break;
case 'W':
W = atoi(optarg);
break;
case 'H':
H = atoi(optarg);
break;
case 'X':
crpix[0] = atof(optarg);
break;
case 'Y':
crpix[1] = atof(optarg);
break;
}
}
if (optind != argc) {
exit(-1);
}
log_init(loglvl);
log_to(logstream);
errors_log_to(logstream);
if (W == 0 || H == 0) {
logerr("Need -W, -H\n");
exit(-1);
}
if (crpix[0] == HUGE_VAL)
crpix[0] = W/2.0;
if (crpix[1] == HUGE_VAL)
crpix[1] = H/2.0;
while (1) {
double x,y,ra,dec;
if (fscanf(stdin, "%lf %lf %lf %lf\n", &x, &y, &ra, &dec) < 4)
break;
if (x == -1 && y == -1) {
dl_append(otherradecs, ra);
dl_append(otherradecs, dec);
} else {
dl_append(xys, x);
dl_append(xys, y);
dl_append(radecs, ra);
dl_append(radecs, dec);
}
}
logmsg("Read %i x,y,ra,dec tuples\n", dl_size(xys)/2);
N = dl_size(xys)/2;
xy = dl_to_array(xys);
xyz = malloc(3 * N * sizeof(double));
for (i=0; i<N; i++)
radecdeg2xyzarr(dl_get(radecs, 2*i), dl_get(radecs, 2*i+1), xyz + i*3);
dl_free(xys);
dl_free(radecs);
fit_tan_wcs(xyz, xy, N, &tan, NULL);
tan.imagew = W;
tan.imageh = H;
logmsg("Computed TAN WCS:\n");
tan_print_to(&tan, logstream);
sip_t* sip;
{
tweak_t* t = tweak_new();
starxy_t* sxy = starxy_new(N, FALSE, FALSE);
il* imginds = il_new(256);
il* refinds = il_new(256);
for (i=0; i<N; i++) {
starxy_set_x(sxy, i, xy[2*i+0]);
starxy_set_y(sxy, i, xy[2*i+1]);
}
tweak_init(t);
tweak_push_ref_xyz(t, xyz, N);
tweak_push_image_xy(t, sxy);
for (i=0; i<N; i++) {
il_append(imginds, i);
il_append(refinds, i);
}
// unweighted; no dist2s
tweak_push_correspondence_indices(t, imginds, refinds, NULL, NULL);
tweak_push_wcs_tan(t, &tan);
t->sip->a_order = t->sip->b_order = t->sip->ap_order = t->sip->bp_order = order;
for (i=0; i<10; i++) {
// go to TWEAK_HAS_LINEAR_CD -> do_sip_tweak
// t->image has the indices of corresponding image stars
// t->ref has the indices of corresponding catalog stars
tweak_go_to(t, TWEAK_HAS_LINEAR_CD);
logmsg("\n");
sip_print(t->sip);
t->state &= ~TWEAK_HAS_LINEAR_CD;
}
tan_write_to_file(&t->sip->wcstan, "kt1.wcs");
sip = t->sip;
}
for (i=0; i<dl_size(otherradecs)/2; i++) {
double ra, dec, x,y;
ra = dl_get(otherradecs, 2*i);
dec = dl_get(otherradecs, 2*i+1);
if (!sip_radec2pixelxy(sip, ra, dec, &x, &y)) {
logerr("Not in tangent plane: %g,%g\n", ra, dec);
exit(-1);
//continue;
}
printf("%g %g\n", x, y);
}
/*
blind_wcs_move_tangent_point(xyz, xy, N, crpix, &tan, &tan2);
blind_wcs_move_tangent_point(xyz, xy, N, crpix, &tan2, &tan3);
logmsg("Moved tangent point to (%g,%g):\n", crpix[0], crpix[1]);
tan_print_to(&tan3, logstream);
tan_write_to_file(&tan, "kt1.wcs");
tan_write_to_file(&tan3, "kt2.wcs");
*/
dl_free(otherradecs);
free(xy);
free(xyz);
return 0;
}
int main(int argc, char** args) {
int loglvl = LOG_MSG;
char** myargs;
int nargs;
int c;
char* wcsinfn = NULL;
char* wcsoutfn = NULL;
int ext = 0;
anbool scamp = FALSE;
double xlo = 1;
double xhi = 1000;
double xstep = 0;
double ylo = 1;
double yhi = 1000;
double ystep = 0;
anbool forcetan = FALSE;
dl* xylst;
double x,y;
double* xy;
int Nxy;
int W, H;
W = H = 0;
while ((c = getopt(argc, args, OPTIONS)) != -1) {
switch (c) {
case 't':
forcetan = TRUE;
break;
case 'W':
W = atoi(optarg);
break;
case 'H':
H = atoi(optarg);
break;
case 'x':
xlo = atof(optarg);
break;
case 'X':
xhi = atof(optarg);
break;
case 'a':
xstep = atof(optarg);
break;
case 'y':
ylo = atof(optarg);
break;
case 'Y':
yhi = atof(optarg);
break;
case 'b':
ystep = atof(optarg);
break;
case 's':
scamp = TRUE;
break;
case 'e':
ext = atoi(optarg);
break;
case 'v':
loglvl++;
break;
case '?':
case 'h':
print_help(args[0]);
exit(0);
}
}
nargs = argc - optind;
myargs = args + optind;
if (nargs != 2) {
print_help(args[0]);
exit(-1);
}
wcsinfn = myargs[0];
wcsoutfn = myargs[1];
log_init(loglvl);
fits_use_error_system();
logmsg("Reading WCS (with PV distortions) from %s, ext %i\n", wcsinfn, ext);
logmsg("Writing WCS (with SIP distortions) to %s\n", wcsoutfn);
assert(xhi >= xlo);
assert(yhi >= ylo);
if (xstep == 0) {
int nsteps = MAX(1, round((xhi - xlo)/100.0));
xstep = (xhi - xlo) / (double)nsteps;
}
if (ystep == 0) {
int nsteps = MAX(1, round((yhi - ylo)/100.0));
ystep = (yhi - ylo) / (double)nsteps;
}
logverb("Stepping from x = %g to %g, steps of %g\n", xlo, xhi, xstep);
logverb("Stepping from y = %g to %g, steps of %g\n", ylo, yhi, ystep);
xylst = dl_new(256);
for (y=ylo; y<=(yhi+0.001); y+=ystep) {
for (x=xlo; x<=(xhi+0.001); x+=xstep) {
dl_append(xylst, x);
dl_append(xylst, y);
}
}
Nxy = dl_size(xylst)/2;
xy = dl_to_array(xylst);
dl_free(xylst);
if (wcs_pv2sip(wcsinfn, ext, wcsoutfn, scamp, xy, Nxy, W, H,
forcetan)) {
exit(-1);
}
free(xy);
return 0;
}
int main(int argc, char** args) {
int argchar;
kdtree_t* kd;
int Nleaf = 25;
char* infn = NULL;
char* outfn = NULL;
char* tychofn = NULL;
char* crossfn = NULL;
char* progname = args[0];
FILE* f;
tycstar_t* tycstars = NULL;
int Ntyc = 0;
int exttype = KDT_EXT_DOUBLE;
int datatype = KDT_DATA_U32;
int treetype = KDT_TREE_U32;
int tt;
int buildopts = 0;
int i, N, D;
dl* ras;
dl* decs;
dl* hds;
fl* mag1s;
fl* mag2s;
fl* mag3s;
int nbad = 0;
int nox = 0;
int* hd;
double* xyz;
qfits_header* hdr;
while ((argchar = getopt (argc, args, OPTIONS)) != -1)
switch (argchar) {
case 'T':
tychofn = optarg;
break;
case 'X':
crossfn = optarg;
break;
case 'R':
Nleaf = (int)strtoul(optarg, NULL, 0);
break;
case 't':
treetype = kdtree_kdtype_parse_tree_string(optarg);
break;
case 'd':
datatype = kdtree_kdtype_parse_data_string(optarg);
break;
case 'b':
buildopts |= KD_BUILD_BBOX;
break;
case 's':
buildopts |= KD_BUILD_SPLIT;
break;
case 'S':
buildopts |= KD_BUILD_SPLITDIM;
break;
case '?':
fprintf(stderr, "Unknown option `-%c'.\n", optopt);
case 'h':
printHelp(progname);
return 0;
default:
return -1;
}
if (optind != argc - 2) {
printHelp(progname);
exit(-1);
}
infn = args[optind];
outfn = args[optind+1];
if (!(buildopts & (KD_BUILD_BBOX | KD_BUILD_SPLIT))) {
printf("You need bounding-boxes or splitting planes!\n");
printHelp(progname);
exit(-1);
}
if (tychofn || crossfn) {
if (!(tychofn && crossfn)) {
printf("You need both -T <Tycho2> and -X <Crossref> to do cross-referencing.\n");
exit(-1);
}
}
if (tychofn) {
int i, N;
tycho2_fits* tyc;
FILE* f;
int nx, nox;
int lastgrass = 0;
tyc = tycho2_fits_open(tychofn);
if (!tyc) {
ERROR("Failed to open Tycho-2 catalog.");
exit(-1);
}
printf("Reading Tycho-2 catalog...\n");
N = tycho2_fits_count_entries(tyc);
tycstars = calloc(N, sizeof(tycstar_t));
for (i=0; i<N; i++) {
tycho2_entry* te;
int grass = (i*80 / N);
if (grass != lastgrass) {
printf(".");
fflush(stdout);
lastgrass = grass;
}
te = tycho2_fits_read_entry(tyc);
tycstars[i].tyc1 = te->tyc1;
tycstars[i].tyc2 = te->tyc2;
tycstars[i].tyc3 = te->tyc3;
tycstars[i].ra = te->ra;
tycstars[i].dec = te->dec;
tycstars[i].mag_BT = te->mag_BT;
tycstars[i].mag_VT = te->mag_VT;
tycstars[i].mag_HP = te->mag_HP;
}
tycho2_fits_close(tyc);
printf("Sorting...\n");
qsort(tycstars, N, sizeof(tycstar_t), compare_tycs);
Ntyc = N;
f = fopen(crossfn, "rb");
if (!f) {
SYSERROR("Failed to open cross-reference file %s", crossfn);
exit(-1);
}
nx = 0;
nox = 0;
while (TRUE) {
char buf[1024];
int tyc1, tyc2, tyc3, hd, nhd, ntyc;
char ftyc, sptype0, sptype1, sptype2;
tycstar_t* s;
if (!fgets(buf, sizeof(buf), f)) {
if (ferror(f)) {
SYSERROR("Failed to read a line of text from the cross-reference file");
exit(-1);
}
break;
}
if (sscanf(buf, " %d %d %d%c %d %c%c%c %d %d",
&tyc1, &tyc2, &tyc3, &ftyc, &hd,
&sptype0, &sptype1, &sptype2, &nhd, &ntyc) != 10) {
ERROR("Failed to parse line: \"%s\"", buf);
}
//printf("%i %i %i %i %i %i\n", tyc1, tyc2, tyc3, hd, nhd, ntyc);
s = find_tycho(tycstars, Ntyc, tyc1, tyc2, tyc3);
if (!s) {
ERROR("Failed to find Tycho-2 star %i-%i-%i", tyc1, tyc2, tyc3);
nox++;
} else {
s->hd = hd;
s->ntyc = ntyc;
}
nx++;
}
fclose(f);
printf("Read %i cross-references.\n", nx);
printf("Failed to find %i cross-referenced Tycho-2 stars.\n", nox);
printf("Sorting...\n");
qsort(tycstars, N, sizeof(tycstar_t), compare_hds);
}
f = fopen(infn, "rb");
if (!f) {
SYSERROR("Failed to open input file %s", infn);
exit(-1);
}
ras = dl_new(1024);
decs = dl_new(1024);
hds = il_new(1024);
mag1s = fl_new(1024);
mag2s = fl_new(1024);
mag3s = fl_new(1024);
printf("Reading HD catalog...\n");
for (;;) {
char buf[1024];
double ra, dec;
int hd;
float mag1, mag2, mag3;
mag1 = mag2 = mag3 = 0.0;
if (!fgets(buf, sizeof(buf), f)) {
if (ferror(f)) {
SYSERROR("Failed to read a line of text from the input file");
exit(-1);
}
break;
}
if (buf[0] == '#')
continue;
if (buf[0] == '\n')
continue;
if (sscanf(buf, " %lf| %lf| %d", &ra, &dec, &hd) < 3) {
// ignore three invalid lines
if (nbad > 3) {
ERROR("Failed to parse line: \"%s\"", buf);
}
nbad++;
} else {
if (tycstars) {
tycstar_t* s = find_hd(tycstars, Ntyc, hd);
if (!s) {
//printf("Failed to find cross-ref for HD %i\n", hd);
nox++;
} else {
ra = s->ra;
dec = s->dec;
mag1 = s->mag_VT;
mag2 = s->mag_BT;
mag3 = s->mag_HP;
}
}
dl_append(ras, ra);
dl_append(decs, dec);
il_append(hds, hd);
fl_append(mag1s, mag1);
fl_append(mag2s, mag2);
fl_append(mag3s, mag3);
}
}
fclose(f);
N = dl_size(ras);
printf("Read %i entries and %i bad lines.\n", N, nbad);
if (dl_size(ras) != HD_NENTRIES) {
printf("WARNING: expected %i Henry Draper catalog entries.\n", HD_NENTRIES);
}
if (nox) {
printf("Found %i HD entries with no cross-reference (expect this to be about 1%%)\n", nox);
}
hd = malloc(sizeof(int) * N);
il_copy(hds, 0, N, hd);
il_free(hds);
for (i=0; i<N; i++)
if (hd[i] != i+1) {
printf("Line %i is HD %i\n", i+1, hd[i]);
break;
}
// HACK - don't allocate 'em in the first place...
free(hd);
xyz = malloc(sizeof(double) * 3 * N);
for (i=0; i<N; i++) {
radecdeg2xyzarr(dl_get(ras, i), dl_get(decs, i), xyz + 3*i);
}
dl_free(ras);
dl_free(decs);
tt = kdtree_kdtypes_to_treetype(exttype, treetype, datatype);
D = 3;
{
// limits of the kdtree...
double lo[] = {-1.0, -1.0, -1.0};
double hi[] = { 1.0, 1.0, 1.0};
kd = kdtree_new(N, D, Nleaf);
kdtree_set_limits(kd, lo, hi);
}
printf("Building tree...\n");
kd = kdtree_build(kd, xyz, N, D, Nleaf, tt, buildopts);
hdr = qfits_header_default();
qfits_header_add(hdr, "AN_FILE", "HDTREE", "Henry Draper catalog kdtree", NULL);
BOILERPLATE_ADD_FITS_HEADERS(hdr);
fits_add_long_history(hdr, "This file was created by the following command-line:");
fits_add_args(hdr, args, argc);
if (kdtree_fits_write(kd, outfn, hdr)) {
ERROR("Failed to write kdtree");
exit(-1);
}
// Write mags as tag-along table.
{
fitstable_t* tag;
tag = fitstable_open_for_appending(outfn);
if (!tag) {
ERROR("Failed to open kd-tree file for appending");
exit(-1);
}
fitstable_add_write_column(tag, fitscolumn_float_type(), "MAG_VT", "");
fitstable_add_write_column(tag, fitscolumn_float_type(), "MAG_BT", "");
fitstable_add_write_column(tag, fitscolumn_float_type(), "MAG_HP", "");
if (fitstable_write_header(tag)) {
ERROR("Failed to write tag-along header");
exit(-1);
}
for (i=0; i<N; i++) {
fitstable_write_row(tag, fl_get(mag1s, i), fl_get(mag2s, i),
fl_get(mag3s, i));
}
if (fitstable_fix_header(tag)) {
ERROR("Failed to fix tag-along header");
exit(-1);
}
if (fitstable_close(tag)) {
ERROR("Failed to close tag-along data");
exit(-1);
}
}
fl_free(mag1s);
fl_free(mag2s);
fl_free(mag3s);
printf("Done.\n");
qfits_header_destroy(hdr);
free(xyz);
kdtree_free(kd);
free(tycstars);
return 0;
}
int plot_xy_plot(const char* command, cairo_t* cairo,
plot_args_t* pargs, void* baton) {
plotxy_t* args = (plotxy_t*)baton;
// Plot it!
xylist_t* xyls;
starxy_t myxy;
starxy_t* xy = NULL;
starxy_t* freexy = NULL;
int Nxy;
int i;
#if 0
double t0;
#endif
plotstuff_builtin_apply(cairo, pargs);
if (args->fn && dl_size(args->xyvals)) {
ERROR("Can only plot one of xylist filename and xy_vals");
return -1;
}
if (!args->fn && !dl_size(args->xyvals)) {
ERROR("Neither xylist filename nor xy_vals given!");
return -1;
}
if (args->fn) {
#if 0
t0 = timenow();
#endif
// Open xylist.
xyls = xylist_open(args->fn);
if (!xyls) {
ERROR("Failed to open xylist from file \"%s\"", args->fn);
return -1;
}
// we don't care about FLUX and BACKGROUND columns.
xylist_set_include_flux(xyls, FALSE);
xylist_set_include_background(xyls, FALSE);
if (args->xcol)
xylist_set_xname(xyls, args->xcol);
if (args->ycol)
xylist_set_yname(xyls, args->ycol);
// Find number of entries in xylist.
xy = xylist_read_field_num(xyls, args->ext, NULL);
freexy = xy;
xylist_close(xyls);
if (!xy) {
ERROR("Failed to read FITS extension %i from file %s.\n", args->ext, args->fn);
return -1;
}
Nxy = starxy_n(xy);
// If N is specified, apply it as a max.
if (args->nobjs)
Nxy = MIN(Nxy, args->nobjs);
//logmsg("%g s to read xylist\n", timenow()-t0);
} else {
assert(dl_size(args->xyvals));
starxy_from_dl(&myxy, args->xyvals, FALSE, FALSE);
xy = &myxy;
Nxy = starxy_n(xy);
}
// Transform through WCSes.
if (args->wcs) {
double ra, dec, x, y;
assert(pargs->wcs);
/*
// check for any overlap.
double pralo,prahi,pdeclo,pdechi;
double ralo,rahi,declo,dechi;
anwcs_get_radec_bounds(pargs->wcs, 100, &pralo, &prahi, &pdeclo, &pdechi);
anwcs_get_radec_bounds(args->wcs, 100, &ralo, &rahi, &declo, &dechi);
if (
*/
for (i=0; i<Nxy; i++) {
anwcs_pixelxy2radec(args->wcs,
// I used to add 1 here
starxy_getx(xy, i), starxy_gety(xy, i),
&ra, &dec);
if (!plotstuff_radec2xy(pargs, ra, dec, &x, &y))
continue;
logverb(" xy (%g,%g) -> RA,Dec (%g,%g) -> plot xy (%g,%g)\n",
starxy_getx(xy,i), starxy_gety(xy,i), ra, dec, x, y);
// add shift and scale...
// FIXME -- not clear that we want to do this here...
/*
starxy_setx(xy, i, args->scale * (x - args->xoff));
starxy_sety(xy, i, args->scale * (y - args->yoff));
starxy_setx(xy, i, x-1);
starxy_sety(xy, i, y-1);
*/
// Output coords: FITS -> 0-indexed image
starxy_setx(xy, i, x-1);
starxy_sety(xy, i, y-1);
}
} else {
// Shift and scale xylist entries.
if (args->xoff != 0.0 || args->yoff != 0.0) {
for (i=0; i<Nxy; i++) {
starxy_setx(xy, i, starxy_getx(xy, i) - args->xoff);
starxy_sety(xy, i, starxy_gety(xy, i) - args->yoff);
}
}
if (args->scale != 1.0) {
for (i=0; i<Nxy; i++) {
starxy_setx(xy, i, args->scale * starxy_getx(xy, i));
starxy_sety(xy, i, args->scale * starxy_gety(xy, i));
}
}
}
// Plot markers.
#if 0
t0 = timenow();
#endif
for (i=args->firstobj; i<Nxy; i++) {
double x = starxy_getx(xy, i);
double y = starxy_gety(xy, i);
if (plotstuff_marker_in_bounds(pargs, x, y))
plotstuff_stack_marker(pargs, x, y);
}
plotstuff_plot_stack(pargs, cairo);
//logmsg("%g s to plot xylist\n", timenow()-t0);
starxy_free(freexy);
return 0;
}
static void plot_constellations(cairo_t* cairo, plot_args_t* pargs, plotann_t* ann) {
int i, N;
double ra,dec,radius;
double xyzf[3];
// Find the field center and radius
anwcs_get_radec_center_and_radius(pargs->wcs, &ra, &dec, &radius);
logverb("Plotting constellations: field center %g,%g, radius %g\n",
ra, dec, radius);
radecdeg2xyzarr(ra, dec, xyzf);
radius = deg2dist(radius);
N = constellations_n();
for (i=0; i<N; i++) {
int j, k;
// Find the approximate center and radius of this constellation
// and see if it overlaps with the field.
il* stars = constellations_get_unique_stars(i);
double xyzj[3];
double xyzc[3];
double maxr2 = 0;
dl* rds;
xyzc[0] = xyzc[1] = xyzc[2] = 0.0;
xyzj[0] = xyzj[1] = xyzj[2] = 0.0;
for (j=0; j<il_size(stars); j++) {
constellations_get_star_radec(il_get(stars, j), &ra, &dec);
radecdeg2xyzarr(ra, dec, xyzj);
for (k=0; k<3; k++)
xyzc[k] += xyzj[k];
}
normalize_3(xyzc);
for (j=0; j<il_size(stars); j++) {
constellations_get_star_radec(il_get(stars, j), &ra, &dec);
maxr2 = MAX(maxr2, distsq(xyzc, xyzj, 3));
}
il_free(stars);
maxr2 = square(sqrt(maxr2) + radius);
if (distsq(xyzf, xyzc, 3) > maxr2) {
xyzarr2radecdeg(xyzc, &ra, &dec);
logverb("Constellation %s (center %g,%g, radius %g) out of bounds\n",
constellations_get_shortname(i), ra, dec,
dist2deg(sqrt(maxr2) - radius));
logverb(" dist from field center to constellation center is %g deg\n",
distsq2deg(distsq(xyzf, xyzc, 3)));
logverb(" max radius: %g\n", distsq2deg(maxr2));
continue;
}
if (ann->constellation_pastel) {
float r,g,b;
xyzarr2radecdeg(xyzc, &ra, &dec);
color_for_radec(ra, dec, &r,&g,&b);
plotstuff_set_rgba2(pargs, r,g,b, 0.8);
plotstuff_builtin_apply(cairo, pargs);
}
// Phew, plot it.
if (ann->constellation_lines) {
rds = constellations_get_lines_radec(i);
logverb("Constellation %s: plotting %zu lines\n",
constellations_get_shortname(i), dl_size(rds)/4);
for (j=0; j<dl_size(rds)/4; j++) {
double r1,d1,r2,d2;
double r3,d3,r4,d4;
double off = ann->constellation_lines_offset;
r1 = dl_get(rds, j*4+0);
d1 = dl_get(rds, j*4+1);
r2 = dl_get(rds, j*4+2);
d2 = dl_get(rds, j*4+3);
if (anwcs_find_discontinuity(pargs->wcs, r1, d1, r2, d2,
&r3, &d3, &r4, &d4)) {
logverb("Discontinuous: %g,%g -- %g,%g\n", r1, d1, r2, d2);
logverb(" %g,%g == %g,%g\n", r3,d3, r4,d4);
plot_offset_line_rd(NULL, pargs, r1,d1,r3,d3, off, 0.);
plot_offset_line_rd(NULL, pargs, r4,d4,r2,d2, 0., off);
} else {
plot_offset_line_rd(NULL, pargs, r1,d1,r2,d2, off, off);
}
plotstuff_stroke(pargs);
}
dl_free(rds);
}
if (ann->constellation_labels ||
ann->constellation_markers) {
// Put the label at the center of mass of the stars that
// are in-bounds
int Nin = 0;
stars = constellations_get_unique_stars(i);
xyzc[0] = xyzc[1] = xyzc[2] = 0.0;
logverb("Labeling %s: %zu stars\n", constellations_get_shortname(i),
il_size(stars));
for (j=0; j<il_size(stars); j++) {
constellations_get_star_radec(il_get(stars, j), &ra, &dec);
if (!anwcs_radec_is_inside_image(pargs->wcs, ra, dec))
continue;
if (ann->constellation_markers)
plotstuff_marker_radec(pargs, ra, dec);
radecdeg2xyzarr(ra, dec, xyzj);
for (k=0; k<3; k++)
xyzc[k] += xyzj[k];
Nin++;
}
logverb(" %i stars in-bounds\n", Nin);
if (ann->constellation_labels && Nin) {
const char* label;
normalize_3(xyzc);
xyzarr2radecdeg(xyzc, &ra, &dec);
if (ann->constellation_labels_long)
label = constellations_get_longname(i);
else
label = constellations_get_shortname(i);
plotstuff_text_radec(pargs, ra, dec, label);
}
il_free(stars);
}
}
}
/*
static void walk_callback2(const anwcs_t* wcs, double ix, double iy,
double ra, double dec, void* token) {
struct walk_token2* walk = token;
dl_append(walk->radecs, ra);
dl_append(walk->radecs, dec);
}
*/
void test_walk_outline(CuTest* tc) {
anwcs_t* plotwcs = anwcs_create_allsky_hammer_aitoff(180., 0., 400, 200);
#if 0
tan_t tanwcs;
tanwcs.crval[0] = 10.;
tanwcs.crval[1] = 0.;
tanwcs.crpix[0] = 25.;
tanwcs.crpix[1] = 25.;
tanwcs.cd[0][0] = 1.;
tanwcs.cd[0][1] = 0.;
tanwcs.cd[1][0] = 0.;
tanwcs.cd[1][1] = 1.;
tanwcs.imagew = 50.;
tanwcs.imageh = 50.;
tanwcs.sin = 0;
#endif
dl* rd;
/*
anwcs_t* wcs = anwcs_new_tan(&tanwcs);
struct walk_token2 token2;
double stepsize = 1000;
*/
log_init(LOG_ALL);
/*
token2.radecs = dl_new(256);
anwcs_walk_image_boundary(wcs, stepsize, walk_callback2, &token2);
rd = token2.radecs;
logverb("Outline: walked in %i steps\n", dl_size(rd)/2);
// close
dl_append(rd, dl_get(rd, 0));
dl_append(rd, dl_get(rd, 1));
int i;
for (i=0; i<dl_size(rd)/2; i++) {
double ra,dec;
ra = dl_get(rd, 2*i+0);
dec = dl_get(rd, 2*i+1);
printf("outline step %i: (%.2f, %.2f)\n", i, ra, dec);
}
*/
rd = dl_new(256);
dl_append(rd, 10.);
dl_append(rd, 0.);
dl_append(rd, 350.);
dl_append(rd, 0.);
dl_append(rd, 350.);
dl_append(rd, 10.);
dl_append(rd, 10.);
dl_append(rd, 10.);
dl_append(rd, 10.);
dl_append(rd, 0.);
pl* lists = anwcs_walk_outline(plotwcs, rd, 100);
printf("\n\n\n");
printf("%zu lists\n", pl_size(lists));
int i;
for (i=0; i<pl_size(lists); i++) {
dl* plotlist = pl_get(lists, i);
printf("List %i: length %zu\n", i, dl_size(plotlist));
int j;
for (j=0; j<dl_size(plotlist)/2; j++) {
printf(" %.2f, %.2f\n",
dl_get(plotlist, j*2+0),
dl_get(plotlist, j*2+1));
}
printf("\n");
}
}
int plotstuff_plot_stack(plot_args_t* pargs, cairo_t* cairo) {
int i, j;
int layer;
anbool morelayers;
logverb("Plotting %zu stacked plot commands.\n", bl_size(pargs->cairocmds));
morelayers = TRUE;
for (layer=0;; layer++) {
if (!morelayers)
break;
morelayers = FALSE;
for (i=0; i<bl_size(pargs->cairocmds); i++) {
cairocmd_t* cmd = bl_access(pargs->cairocmds, i);
if (cmd->layer > layer)
morelayers = TRUE;
if (cmd->layer != layer)
continue;
cairo_set_rgba(cairo, cmd->rgba);
switch (cmd->type) {
case CIRCLE:
cairo_move_to(cairo, cmd->x + cmd->radius, cmd->y);
cairo_arc(cairo, cmd->x, cmd->y, cmd->radius, 0, 2*M_PI);
break;
case MARKER:
{
double oldmarkersize = pargs->markersize;
int oldmarker = pargs->marker;
pargs->markersize = cmd->markersize;
pargs->marker = cmd->marker;
plotstuff_marker(pargs, cmd->x, cmd->y);
pargs->markersize = oldmarkersize;
pargs->marker = oldmarker;
}
break;
case TEXT:
cairo_move_to(cairo, cmd->x, cmd->y);
cairo_show_text(cairo, cmd->text);
break;
case LINE:
case ARROW:
plotstuff_move_to(pargs, cmd->x, cmd->y);
plotstuff_line_to(pargs, cmd->x2, cmd->y2);
{
double dx = cmd->x - cmd->x2;
double dy = cmd->y - cmd->y2;
double angle = atan2(dy, dx);
double dang = 30. * M_PI/180.0;
double arrowlen = 20;
plotstuff_line_to(pargs,
cmd->x2 + cos(angle+dang)*arrowlen,
cmd->y2 + sin(angle+dang)*arrowlen);
plotstuff_move_to(pargs, cmd->x2, cmd->y2);
plotstuff_line_to(pargs,
cmd->x2 + cos(angle-dang)*arrowlen,
cmd->y2 + sin(angle-dang)*arrowlen);
}
break;
case RECTANGLE:
ERROR("Unimplemented!");
return -1;
case POLYGON:
if (!cmd->xy)
break;
for (j=0; j<dl_size(cmd->xy)/2; j++)
(j == 0 ? cairo_move_to : cairo_line_to)(cairo, dl_get(cmd->xy, 2*j+0), dl_get(cmd->xy, 2*j+1));
if (cmd->fill)
cairo_fill(cairo);
break;
}
cairo_stroke(cairo);
}
}
for (i=0; i<bl_size(pargs->cairocmds); i++) {
cairocmd_t* cmd = bl_access(pargs->cairocmds, i);
cairocmd_clear(cmd);
}
bl_remove_all(pargs->cairocmds);
return 0;
}