int wcs_xy2rd(const char* wcsfn, int ext,
const char* xylsfn, const char* rdlsfn,
const char* xcol, const char* ycol,
int forcetan,
int forcewcslib,
il* fields) {
rdlist_t* rdls = NULL;
xylist_t* xyls = NULL;
anwcs_t* wcs = NULL;
int i;
int rtn = -1;
anbool alloced_fields = FALSE;
// read WCS.
if (forcewcslib) {
wcs = anwcs_open_wcslib(wcsfn, ext);
} else if (forcetan) {
wcs = anwcs_open_tan(wcsfn, ext);
} else {
wcs = anwcs_open(wcsfn, ext);
}
if (!wcs) {
ERROR("Failed to read WCS file \"%s\", extension %i", wcsfn, ext);
return -1;
}
// read XYLS.
xyls = xylist_open(xylsfn);
if (!xyls) {
ERROR("Failed to read an xylist from file %s", xylsfn);
goto bailout;
}
xylist_set_include_flux(xyls, FALSE);
xylist_set_include_background(xyls, FALSE);
if (xcol)
xylist_set_xname(xyls, xcol);
if (ycol)
xylist_set_yname(xyls, ycol);
// write RDLS.
rdls = rdlist_open_for_writing(rdlsfn);
if (!rdls) {
ERROR("Failed to open file %s to write RDLS.\n", rdlsfn);
goto bailout;
}
if (rdlist_write_primary_header(rdls)) {
ERROR("Failed to write header to RDLS file %s.\n", rdlsfn);
goto bailout;
}
if (!fields) {
alloced_fields = TRUE;
fields = il_new(16);
}
if (!il_size(fields)) {
// add all fields.
int NF = xylist_n_fields(xyls);
for (i=1; i<=NF; i++)
il_append(fields, i);
}
logverb("Processing %zu extensions...\n", il_size(fields));
for (i=0; i<il_size(fields); i++) {
int fieldind = il_get(fields, i);
starxy_t xy;
rd_t rd;
int j;
if (!xylist_read_field_num(xyls, fieldind, &xy)) {
ERROR("Failed to read xyls file %s, field %i", xylsfn, fieldind);
goto bailout;
}
if (rdlist_write_header(rdls)) {
ERROR("Failed to write rdls field header to %s", rdlsfn);
goto bailout;
}
rd_alloc_data(&rd, starxy_n(&xy));
for (j=0; j<starxy_n(&xy); j++) {
double x, y, ra, dec;
x = starxy_getx(&xy, j);
y = starxy_gety(&xy, j);
anwcs_pixelxy2radec(wcs, x, y, &ra, &dec);
rd_setra (&rd, j, ra);
rd_setdec(&rd, j, dec);
}
if (rdlist_write_field(rdls, &rd)) {
ERROR("Failed to write rdls field to %s", rdlsfn);
goto bailout;
}
rd_free_data(&rd);
starxy_free_data(&xy);
if (rdlist_fix_header(rdls)) {
ERROR("Failed to fix rdls field header for %s", rdlsfn);
goto bailout;
}
rdlist_next_field(rdls);
}
if (rdlist_fix_primary_header(rdls) ||
rdlist_close(rdls)) {
ERROR("Failed to fix header of RDLS file %s", rdlsfn);
goto bailout;
}
rdls = NULL;
if (xylist_close(xyls)) {
ERROR("Failed to close XYLS file %s", xylsfn);
goto bailout;
}
xyls = NULL;
rtn = 0;
bailout:
if (alloced_fields)
il_free(fields);
if (rdls)
rdlist_close(rdls);
if (xyls)
xylist_close(xyls);
if (wcs)
anwcs_free(wcs);
return rtn;
}
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;
}
int main(int argc, char** args) {
int c;
char* xylsfn = NULL;
char* rdlsfn = NULL;
char* corrfn = NULL;
char* outfn = NULL;
char* xcol = NULL;
char* ycol = NULL;
char* rcol = NULL;
char* dcol = NULL;
xylist_t* xyls = NULL;
rdlist_t* rdls = NULL;
rd_t rd;
starxy_t xy;
int fieldnum = 1;
int N;
double* fieldxy = NULL;
double* xyz = NULL;
sip_t wcs;
int rtn = -1;
int loglvl = LOG_MSG;
int siporder = 0;
int W=0, H=0;
anbool crpix_center = FALSE;
int i;
int doshift = 1;
fits_use_error_system();
while ((c = getopt(argc, args, OPTIONS)) != -1) {
switch (c) {
case 'h':
print_help(args[0]);
exit(0);
case 'W':
W = atoi(optarg);
break;
case 'H':
H = atoi(optarg);
break;
case 'C':
crpix_center = TRUE;
break;
case 's':
siporder = atoi(optarg);
break;
case 'c':
corrfn = optarg;
break;
case 'r':
rdlsfn = optarg;
break;
case 'R':
rcol = optarg;
break;
case 'D':
dcol = optarg;
break;
case 'x':
xylsfn = optarg;
break;
case 'X':
xcol = optarg;
break;
case 'Y':
ycol = optarg;
break;
case 'o':
outfn = optarg;
break;
case 'v':
loglvl++;
break;
}
}
if (optind != argc) {
print_help(args[0]);
exit(-1);
}
if (! ((xylsfn && rdlsfn) || corrfn) || !outfn) {
print_help(args[0]);
exit(-1);
}
log_init(loglvl);
if (corrfn) {
xylsfn = corrfn;
rdlsfn = corrfn;
if (!xcol)
xcol = "FIELD_X";
if (!ycol)
ycol = "FIELD_Y";
if (!rcol)
rcol = "INDEX_RA";
if (!dcol)
dcol = "INDEX_DEC";
}
// read XYLS.
xyls = xylist_open(xylsfn);
if (!xyls) {
ERROR("Failed to read an xylist from file %s", xylsfn);
goto bailout;
}
xylist_set_include_flux(xyls, FALSE);
xylist_set_include_background(xyls, FALSE);
if (xcol)
xylist_set_xname(xyls, xcol);
if (ycol)
xylist_set_yname(xyls, ycol);
// read RDLS.
rdls = rdlist_open(rdlsfn);
if (!rdls) {
ERROR("Failed to read an RA,Dec list from file %s", rdlsfn);
goto bailout;
}
if (rcol)
rdlist_set_raname(rdls, rcol);
if (dcol)
rdlist_set_decname(rdls, dcol);
if (!xylist_read_field_num(xyls, fieldnum, &xy)) {
ERROR("Failed to read xyls file %s, field %i", xylsfn, fieldnum);
goto bailout;
}
if (!rdlist_read_field_num(rdls, fieldnum, &rd)) {
ERROR("Failed to read rdls field %i", fieldnum);
goto bailout;
}
N = starxy_n(&xy);
if (rd_n(&rd) != N) {
ERROR("X,Y list and RA,Dec list must have the same number of entries, "
"but found %i vs %i", N, rd_n(&rd));
goto bailout;
}
logverb("Read %i points from %s and %s\n", N, rdlsfn, xylsfn);
xyz = (double*)malloc(sizeof(double) * 3 * N);
if (!xyz) {
ERROR("Failed to allocate %i xyz coords", N);
goto bailout;
}
radecdeg2xyzarrmany(rd.ra, rd.dec, xyz, N);
fieldxy = starxy_to_xy_array(&xy, NULL);
if (!fieldxy) {
ERROR("Failed to allocate %i xy coords", N);
goto bailout;
}
logverb("Fitting WCS\n");
if (siporder == 0) {
if (fit_tan_wcs(xyz, fieldxy, N, &(wcs.wcstan), NULL)) {
ERROR("Failed to fit for TAN WCS");
goto bailout;
}
} else {
if (W == 0) {
for (i=0; i<N; i++) {
W = MAX(W, (int)ceil(fieldxy[2*i + 0]));
}
}
if (H == 0) {
for (i=0; i<N; i++) {
H = MAX(H, (int)ceil(fieldxy[2*i + 1]));
}
}
logverb("Image size = %i x %i pix\n", W, H);
fit_sip_wcs_2(xyz, fieldxy, NULL, N,
siporder, siporder+1, W, H,
crpix_center, NULL, doshift, &wcs);
}
if (siporder <= 1) {
if (tan_write_to_file(&(wcs.wcstan), outfn)) {
ERROR("Failed to write TAN WCS header to file \"%s\"", outfn);
goto bailout;
}
} else {
if (sip_write_to_file(&wcs, outfn)) {
ERROR("Failed to write SIP WCS header to file \"%s\"", outfn);
goto bailout;
}
}
logverb("Wrote WCS to %s\n", outfn);
starxy_free_data(&xy);
rd_free_data(&rd);
rtn = 0;
bailout:
if (rdls)
rdlist_close(rdls);
if (xyls)
xylist_close(xyls);
if (fieldxy)
free(fieldxy);
if (xyz)
free(xyz);
return rtn;
}
// This runs after "astrometry-engine" is run on the file.
static void after_solved(augment_xylist_t* axy,
solve_field_args_t* sf,
anbool makeplots,
const char* me,
anbool verbose,
const char* tempdir,
sl* tempdirs,
sl* tempfiles,
double plotscale,
const char* bgfn) {
sip_t wcs;
double ra, dec, fieldw, fieldh;
char rastr[32], decstr[32];
char* fieldunits;
// print info about the field.
logmsg("Field: %s\n", axy->imagefn ? axy->imagefn : axy->xylsfn);
if (file_exists(axy->wcsfn)) {
double orient;
if (axy->wcs_last_mod) {
time_t t = file_get_last_modified_time(axy->wcsfn);
if (t == axy->wcs_last_mod) {
logmsg("Warning: there was already a WCS file, and its timestamp has not changed.\n");
}
}
if (!sip_read_header_file(axy->wcsfn, &wcs)) {
ERROR("Failed to read WCS header from file %s", axy->wcsfn);
exit(-1);
}
sip_get_radec_center(&wcs, &ra, &dec);
sip_get_radec_center_hms_string(&wcs, rastr, decstr);
sip_get_field_size(&wcs, &fieldw, &fieldh, &fieldunits);
orient = sip_get_orientation(&wcs);
logmsg("Field center: (RA,Dec) = (%3.6f, %3.6f) deg.\n", ra, dec);
logmsg("Field center: (RA H:M:S, Dec D:M:S) = (%s, %s).\n", rastr, decstr);
logmsg("Field size: %g x %g %s\n", fieldw, fieldh, fieldunits);
logmsg("Field rotation angle: up is %g degrees E of N\n", orient);
} else {
logmsg("Did not solve (or no WCS file was written).\n");
}
// create new FITS file...
if (axy->fitsimgfn && sf->newfitsfn && file_exists(axy->wcsfn)) {
logmsg("Creating new FITS file \"%s\"...\n", sf->newfitsfn);
if (new_wcs(axy->fitsimgfn, axy->wcsfn, sf->newfitsfn, TRUE)) {
ERROR("Failed to create FITS image with new WCS headers");
exit(-1);
}
}
// write list of index stars in image coordinates
if (sf->indxylsfn && file_exists(axy->wcsfn) && file_exists(axy->rdlsfn)) {
assert(axy->wcsfn);
assert(axy->rdlsfn);
// index rdls to xyls.
if (wcs_rd2xy(axy->wcsfn, 0, axy->rdlsfn, sf->indxylsfn,
NULL, NULL, FALSE, FALSE, NULL)) {
ERROR("Failed to project index stars into field coordinates using wcs-rd2xy");
exit(-1);
}
}
if (makeplots && file_exists(sf->indxylsfn) && file_readable(axy->matchfn) && file_readable(axy->wcsfn)) {
logmsg("Creating index object overlay plot...\n");
if (plot_index_overlay(axy, me, sf->indxylsfn, sf->redgreenfn, plotscale, bgfn)) {
ERROR("Plot index overlay failed.");
}
}
if (makeplots && file_readable(axy->wcsfn)) {
logmsg("Creating annotation plot...\n");
if (plot_annotations(axy, me, verbose, sf->ngcfn, plotscale, bgfn)) {
ERROR("Plot annotations failed.");
}
}
if (axy->imagefn && sf->kmzfn && file_exists(axy->wcsfn)) {
logmsg("Writing kmz file...\n");
if (write_kmz(axy, sf->kmzfn, tempdir, tempdirs, tempfiles)) {
ERROR("Failed to write KMZ.");
exit(-1);
}
}
if (sf->scampfn && file_exists(axy->wcsfn)) {
//char* hdrfile = NULL;
qfits_header* imageheader = NULL;
starxy_t* xy;
xylist_t* xyls;
xyls = xylist_open(axy->axyfn);
if (!xyls) {
ERROR("Failed to read xylist to write SCAMP catalog");
exit(-1);
}
if (axy->xcol)
xylist_set_xname(xyls, axy->xcol);
if (axy->ycol)
xylist_set_yname(xyls, axy->ycol);
//xylist_set_include_flux(xyls, FALSE);
xylist_set_include_background(xyls, FALSE);
xy = xylist_read_field(xyls, NULL);
xylist_close(xyls);
if (axy->fitsimgfn) {
//hdrfile = axy->fitsimgfn;
imageheader = anqfits_get_header2(axy->fitsimgfn, 0);
}
if (axy->xylsfn) {
char val[32];
//hdrfile = axy->xylsfn;
imageheader = anqfits_get_header2(axy->xylsfn, 0);
// Set NAXIS=2, NAXIS1=IMAGEW, NAXIS2=IMAGEH
fits_header_mod_int(imageheader, "NAXIS", 2, NULL);
sprintf(val, "%i", axy->W);
qfits_header_add_after(imageheader, "NAXIS", "NAXIS1", val, "image width", NULL);
sprintf(val, "%i", axy->H);
qfits_header_add_after(imageheader, "NAXIS1", "NAXIS2", val, "image height", NULL);
//fits_header_add_int(imageheader, "NAXIS1", axy->W, NULL);
//fits_header_add_int(imageheader, "NAXIS2", axy->H, NULL);
logverb("Using NAXIS 1,2 = %i,%i\n", axy->W, axy->H);
}
if (scamp_write_field(imageheader, &wcs, xy, sf->scampfn)) {
ERROR("Failed to write SCAMP catalog");
exit(-1);
}
starxy_free(xy);
if (imageheader)
qfits_header_destroy(imageheader);
}
if (sf->scampconfigfn) {
if (scamp_write_config_file(axy->scampfn, sf->scampconfigfn)) {
ERROR("Failed to write SCAMP config file snippet to %s", sf->scampconfigfn);
exit(-1);
}
}
}