void test_sorting(CuTest* tc) { double flux[] = { 50, 100, 50, 100, 20, 20, 40, 40 }; double bg[] = { 0, 10, 10, 0, 10, 0, 5, 0 }; int trueorder[] = { 4, 5, 7, 6, 2, 0, 1, 3 }; int i, N; starxy_t* s; char* infn = "/tmp/test-resort-xylist"; char* outfn = "/tmp/test-resort-xylist-out"; xylist_t* xy; xylist_t* xy2; starxy_t* s2; xy = xylist_open_for_writing(infn); CuAssertPtrNotNull(tc, xy); xylist_set_include_flux(xy, TRUE); xylist_set_include_background(xy, TRUE); if (xylist_write_primary_header(xy) || xylist_write_header(xy)) { CuFail(tc, "write header"); } N = sizeof(flux) / sizeof(double); s = starxy_new(N, TRUE, TRUE); for (i=0; i<N; i++) { starxy_setx(s, i, random()%1000); starxy_sety(s, i, random()%1000); } starxy_set_flux_array(s, flux); starxy_set_bg_array(s, bg); if (xylist_write_field(xy, s) || xylist_fix_header(xy) || xylist_fix_primary_header(xy) || xylist_close(xy)) { CuFail(tc, "close xy"); } CuAssertIntEquals(tc, 0, resort_xylist(infn, outfn, NULL, NULL, TRUE)); xy2 = xylist_open(outfn); s2 = xylist_read_field(xy2, NULL); CuAssertPtrNotNull(tc, s2); CuAssertPtrNotNull(tc, s2->x); CuAssertPtrNotNull(tc, s2->y); CuAssertPtrNotNull(tc, s2->flux); CuAssertPtrNotNull(tc, s2->background); for (i=0; i<N; i++) { CuAssertDblEquals(tc, s->x[trueorder[i]], s2->x[i], 1e-6); CuAssertDblEquals(tc, s->y[trueorder[i]], s2->y[i], 1e-6); CuAssertDblEquals(tc, s->flux[trueorder[i]], s2->flux[i], 1e-6); CuAssertDblEquals(tc, s->background[trueorder[i]], s2->background[i], 1e-6); } }
int main(int argc, char** args) { int c; char* xylsfn = NULL; char* wcsfn = NULL; char* rdlsfn = NULL; xylist_t* xyls = NULL; rdlist_t* rdls = NULL; sip_t sip; int i, j; int W, H; //double xyzcenter[3]; //double fieldrad2; double pixeljitter = 1.0; int loglvl = LOG_MSG; double wcsscale; char* bgfn = NULL; //double nsigma = 3.0; fits_use_error_system(); while ((c = getopt(argc, args, OPTIONS)) != -1) { switch (c) { case 'I': bgfn = optarg; break; case 'j': pixeljitter = atof(optarg); break; case 'h': print_help(args[0]); exit(0); case 'r': rdlsfn = optarg; break; case 'x': xylsfn = optarg; break; case 'w': wcsfn = optarg; break; case 'v': loglvl++; break; } } if (optind != argc) { print_help(args[0]); exit(-1); } if (!xylsfn || !wcsfn || !rdlsfn) { print_help(args[0]); exit(-1); } log_init(loglvl); // read WCS. logmsg("Trying to parse SIP header from %s...\n", wcsfn); if (!sip_read_header_file(wcsfn, &sip)) { logmsg("Failed to parse SIP header from %s.\n", wcsfn); } // image W, H W = sip.wcstan.imagew; H = sip.wcstan.imageh; if ((W == 0.0) || (H == 0.0)) { logmsg("WCS file %s didn't contain IMAGEW and IMAGEH headers.\n", wcsfn); // FIXME - use bounds of xylist? exit(-1); } wcsscale = sip_pixel_scale(&sip); logmsg("WCS scale: %g arcsec/pixel\n", wcsscale); // read XYLS. xyls = xylist_open(xylsfn); if (!xyls) { logmsg("Failed to read an xylist from file %s.\n", xylsfn); exit(-1); } // read RDLS. rdls = rdlist_open(rdlsfn); if (!rdls) { logmsg("Failed to read an rdlist from file %s.\n", rdlsfn); exit(-1); } // Find field center and radius. /* sip_pixelxy2xyzarr(&sip, W/2, H/2, xyzcenter); fieldrad2 = arcsec2distsq(sip_pixel_scale(&sip) * hypot(W/2, H/2)); */ { // (x,y) positions of field stars. double* fieldpix; int Nfield; double* indexpix; starxy_t* xy; rd_t* rd; int Nindex; xy = xylist_read_field(xyls, NULL); if (!xy) { logmsg("Failed to read xyls entries.\n"); exit(-1); } Nfield = starxy_n(xy); fieldpix = starxy_to_xy_array(xy, NULL); logmsg("Found %i field objects\n", Nfield); // Project RDLS into pixel space. rd = rdlist_read_field(rdls, NULL); if (!rd) { logmsg("Failed to read rdls entries.\n"); exit(-1); } Nindex = rd_n(rd); logmsg("Found %i indx objects\n", Nindex); indexpix = malloc(2 * Nindex * sizeof(double)); for (i=0; i<Nindex; i++) { anbool ok; double ra = rd_getra(rd, i); double dec = rd_getdec(rd, i); ok = sip_radec2pixelxy(&sip, ra, dec, indexpix + i*2, indexpix + i*2 + 1); assert(ok); } logmsg("CRPIX is (%g,%g)\n", sip.wcstan.crpix[0], sip.wcstan.crpix[1]); /* // ?? // Look for index-field pairs that are (a) close together; and (b) close to CRPIX. // Split the image into 3x3, 5x5 or so, and in each, look for a // (small) rotation and log(scale), then (bigger) shift, using histogram // cross-correlation. // Are the rotations and scales really going to be big enough that this // is required, or can we get away with doing shift first, then fine-tuning // rotation and scale? { // NxN blocks int NB = 3; int b; // HACK - use histogram2d machinery to split image into blocks. histogram2d* blockhist = histogram2d_new_nbins(0, W, NB, 0, H, NB); int* fieldi = malloc(Nfield * sizeof(int)); int* indexi = malloc(Nindex * sizeof(int)); // rotation bins int NR = 100; // scale bins (ie, log(radius) bins) double minrad = 1.0; double maxrad = 200.0; int NS = 100; histogram2d* rsfield = histogram2d_new_nbins(-M_PI, M_PI, NR, log(minrad), log(maxrad), NS); histogram2d* rsindex = histogram2d_new_nbins(-M_PI, M_PI, NR, log(minrad), log(maxrad), NS); histogram2d_set_y_edges(rsfield, HIST2D_DISCARD); histogram2d_set_y_edges(rsindex, HIST2D_DISCARD); for (b=0; b<(NB*NB); b++) { int bin; int NF, NI; double dx, dy; NF = NI = 0; for (i=0; i<Nfield; i++) { bin = histogram2d_add(blockhist, fieldpix[2*i], fieldpix[2*i+1]); if (bin != b) continue; fieldi[NF] = i; NF++; } for (i=0; i<Nindex; i++) { bin = histogram2d_add(blockhist, indexpix[2*i], indexpix[2*i+1]); if (bin != b) continue; indexi[NI] = i; NI++; } logmsg("bin %i has %i field and %i index stars.\n", b, NF, NI); logmsg("histogramming field rotation/scale\n"); for (i=0; i<NF; i++) { for (j=0; j<i; j++) { dx = fieldpix[2*fieldi[i]] - fieldpix[2*fieldi[j]]; dy = fieldpix[2*fieldi[i]+1] - fieldpix[2*fieldi[j]+1]; histogram2d_add(rsfield, atan2(dy, dx), log(sqrt(dx*dx + dy*dy))); } } logmsg("histogramming index rotation/scale\n"); for (i=0; i<NI; i++) { for (j=0; j<i; j++) { dx = indexpix[2*indexi[i]] - fieldpix[2*indexi[j]]; dy = indexpix[2*indexi[i]+1] - fieldpix[2*indexi[j]+1]; histogram2d_add(rsindex, atan2(dy, dx), log(sqrt(dx*dx + dy*dy))); } } } histogram2d_free(rsfield); histogram2d_free(rsindex); free(fieldi); free(indexi); histogram2d_free(blockhist); } */ { double* fieldsigma2s = malloc(Nfield * sizeof(double)); int besti; int* theta; double logodds; double Q2, R2; double qc[2]; double gamma; // HACK -- quad radius-squared Q2 = square(100.0); qc[0] = sip.wcstan.crpix[0]; qc[1] = sip.wcstan.crpix[1]; // HACK -- variance growth rate wrt radius. gamma = 1.0; for (i=0; i<Nfield; i++) { R2 = distsq(qc, fieldpix + 2*i, 2); fieldsigma2s[i] = square(pixeljitter) * (1.0 + gamma * R2/Q2); } logodds = verify_star_lists(indexpix, Nindex, fieldpix, fieldsigma2s, Nfield, W*H, 0.25, log(1e-100), log(1e100), &besti, NULL, &theta, NULL, NULL); logmsg("Logodds: %g\n", logodds); if (bgfn) { plot_args_t pargs; plotimage_t* img; cairo_t* cairo; char outfn[32]; j = 0; plotstuff_init(&pargs); pargs.outformat = PLOTSTUFF_FORMAT_PNG; sprintf(outfn, "tweak-%03i.png", j); pargs.outfn = outfn; img = plotstuff_get_config(&pargs, "image"); //img->format = PLOTSTUFF_FORMAT_JPG; // guess plot_image_set_filename(img, bgfn); plot_image_setsize(&pargs, img); plotstuff_run_command(&pargs, "image"); cairo = pargs.cairo; // red circles around every field star. cairo_set_color(cairo, "red"); for (i=0; i<Nfield; i++) { cairoutils_draw_marker(cairo, CAIROUTIL_MARKER_CIRCLE, fieldpix[2*i+0], fieldpix[2*i+1], 2.0 * sqrt(fieldsigma2s[i])); cairo_stroke(cairo); } // green crosshairs at every index star. cairo_set_color(cairo, "green"); for (i=0; i<Nindex; i++) { cairoutils_draw_marker(cairo, CAIROUTIL_MARKER_XCROSSHAIR, indexpix[2*i+0], indexpix[2*i+1], 3); cairo_stroke(cairo); } // thick white circles for corresponding field stars. cairo_set_line_width(cairo, 2); for (i=0; i<Nfield; i++) { if (theta[i] < 0) continue; cairo_set_color(cairo, "white"); cairoutils_draw_marker(cairo, CAIROUTIL_MARKER_CIRCLE, fieldpix[2*i+0], fieldpix[2*i+1], 2.0 * sqrt(fieldsigma2s[i])); cairo_stroke(cairo); // thick cyan crosshairs for corresponding index stars. cairo_set_color(cairo, "cyan"); cairoutils_draw_marker(cairo, CAIROUTIL_MARKER_XCROSSHAIR, indexpix[2*theta[i]+0], indexpix[2*theta[i]+1], 3); cairo_stroke(cairo); } plotstuff_output(&pargs); } free(theta); free(fieldsigma2s); } free(fieldpix); free(indexpix); } if (xylist_close(xyls)) { logmsg("Failed to close XYLS file.\n"); } return 0; }
void test_solve_multiindex(CuTest* ct) { sl* fns; multiindex_t* mi; int i; solver_t* s = NULL; starxy_t* field = NULL; MatchObj* mo = NULL; xylist_t* xy = NULL; log_init(LOG_VERB); fns = sl_new(4); sl_append(fns, "../util/t10.ind"); sl_append(fns, "../util/t11.ind"); sl_append(fns, "../util/t12.ind"); mi = multiindex_open("../util/t10.skdt", fns, 0); printf("Got %i indices\n", multiindex_n(mi)); for (i=0; i<multiindex_n(mi); i++) { index_t* ind = multiindex_get(mi, i); printf(" %i: %s, %i stars, %i quads (%g to %g arcmin)\n", i, ind->indexname, index_nquads(ind), index_nstars(ind), ind->index_scale_lower/60., ind->index_scale_upper/60.); } s = solver_new(); // 10.8 s->funits_lower = 5.0; s->funits_upper = 15.0; xy = xylist_open("../util/t1.xy"); if (!xy) { ERROR("Failed to open xylist\n"); CuFail(ct, "xylist"); } field = xylist_read_field(xy, NULL); solver_set_field(s, field); solver_set_field_bounds(s, 0, 1000, 0, 1000); for (i=0; i<multiindex_n(mi); i++) { index_t* ind = multiindex_get(mi, i); solver_add_index(s, ind); } solver_run(s); if (solver_did_solve(s)) { mo = solver_get_best_match(s); matchobj_print(mo, LOG_MSG); // HACK -- ugly!! verify_free_matchobj(mo); } xylist_close(xy); solver_cleanup_field(s); solver_free(s); multiindex_free(mi); sl_free2(fns); }
int main(int argc, char** args) { int c; char* xylsfn = NULL; char* wcsfn = NULL; char* rdlsfn = NULL; char* plotfn = NULL; xylist_t* xyls = NULL; rdlist_t* rdls = NULL; sip_t sip; int i; int W, H; double pixeljitter = 1.0; int loglvl = LOG_MSG; double wcsscale; fits_use_error_system(); while ((c = getopt(argc, args, OPTIONS)) != -1) { switch (c) { case 'p': plotfn = optarg; break; case 'j': pixeljitter = atof(optarg); break; case 'h': print_help(args[0]); exit(0); case 'r': rdlsfn = optarg; break; case 'x': xylsfn = optarg; break; case 'w': wcsfn = optarg; break; case 'v': loglvl++; break; } } if (optind != argc) { print_help(args[0]); exit(-1); } if (!xylsfn || !wcsfn || !rdlsfn) { print_help(args[0]); exit(-1); } log_init(loglvl); // read WCS. logmsg("Trying to parse SIP header from %s...\n", wcsfn); if (!sip_read_header_file(wcsfn, &sip)) { logmsg("Failed to parse SIP header from %s.\n", wcsfn); } // image W, H W = sip.wcstan.imagew; H = sip.wcstan.imageh; if ((W == 0.0) || (H == 0.0)) { logmsg("WCS file %s didn't contain IMAGEW and IMAGEH headers.\n", wcsfn); // FIXME - use bounds of xylist? exit(-1); } wcsscale = sip_pixel_scale(&sip); logmsg("WCS scale: %g arcsec/pixel\n", wcsscale); // read XYLS. xyls = xylist_open(xylsfn); if (!xyls) { logmsg("Failed to read an xylist from file %s.\n", xylsfn); exit(-1); } // read RDLS. rdls = rdlist_open(rdlsfn); if (!rdls) { logmsg("Failed to read an rdlist from file %s.\n", rdlsfn); exit(-1); } { // (x,y) positions of field stars. double* fieldpix; int Nfield; double* indexpix; starxy_t* xy; rd_t* rd; int Nindex; xy = xylist_read_field(xyls, NULL); if (!xy) { logmsg("Failed to read xyls entries.\n"); exit(-1); } Nfield = starxy_n(xy); fieldpix = starxy_to_xy_array(xy, NULL); logmsg("Found %i field objects\n", Nfield); // Project RDLS into pixel space. rd = rdlist_read_field(rdls, NULL); if (!rd) { logmsg("Failed to read rdls entries.\n"); exit(-1); } Nindex = rd_n(rd); logmsg("Found %i indx objects\n", Nindex); indexpix = malloc(2 * Nindex * sizeof(double)); for (i=0; i<Nindex; i++) { anbool ok; double ra = rd_getra(rd, i); double dec = rd_getdec(rd, i); ok = sip_radec2pixelxy(&sip, ra, dec, indexpix + i*2, indexpix + i*2 + 1); assert(ok); } logmsg("CRPIX is (%g,%g)\n", sip.wcstan.crpix[0], sip.wcstan.crpix[1]); { double* fieldsigma2s = malloc(Nfield * sizeof(double)); int besti; int* theta; double logodds; double Q2, R2; double qc[2]; double gamma; // HACK -- quad radius-squared Q2 = square(100.0); qc[0] = sip.wcstan.crpix[0]; qc[1] = sip.wcstan.crpix[1]; // HACK -- variance growth rate wrt radius. gamma = 1.0; for (i=0; i<Nfield; i++) { R2 = distsq(qc, fieldpix + 2*i, 2); fieldsigma2s[i] = square(pixeljitter) * (1.0 + gamma * R2/Q2); } logodds = verify_star_lists(indexpix, Nindex, fieldpix, fieldsigma2s, Nfield, W*H, 0.25, log(1e-100), log(1e100), &besti, NULL, &theta, NULL); logmsg("Logodds: %g\n", logodds); if (TRUE) { for (i=0; i<Nfield; i++) { if (theta[i] < 0) continue; printf("%g %g %g %g\n", fieldpix[2*i+0], fieldpix[2*i+1], rd_getra(rd, theta[i]), rd_getdec(rd, theta[i])); } } if (plotfn) { plot_args_t pargs; plotimage_t* img; cairo_t* cairo; plotstuff_init(&pargs); pargs.outformat = PLOTSTUFF_FORMAT_PNG; pargs.outfn = plotfn; img = plotstuff_get_config(&pargs, "image"); img->format = PLOTSTUFF_FORMAT_JPG; plot_image_set_filename(img, "1.jpg"); plot_image_setsize(&pargs, img); plotstuff_run_command(&pargs, "image"); cairo = pargs.cairo; // red circles around every field star. cairo_set_color(cairo, "red"); for (i=0; i<Nfield; i++) { cairoutils_draw_marker(cairo, CAIROUTIL_MARKER_CIRCLE, fieldpix[2*i+0], fieldpix[2*i+1], 2.0 * sqrt(fieldsigma2s[i])); cairo_stroke(cairo); } // green crosshairs at every index star. cairo_set_color(cairo, "green"); for (i=0; i<Nindex; i++) { cairoutils_draw_marker(cairo, CAIROUTIL_MARKER_XCROSSHAIR, indexpix[2*i+0], indexpix[2*i+1], 3); cairo_stroke(cairo); } // thick white circles for corresponding field stars. cairo_set_line_width(cairo, 2); for (i=0; i<Nfield; i++) { if (theta[i] < 0) continue; cairo_set_color(cairo, "white"); cairoutils_draw_marker(cairo, CAIROUTIL_MARKER_CIRCLE, fieldpix[2*i+0], fieldpix[2*i+1], 2.0 * sqrt(fieldsigma2s[i])); cairo_stroke(cairo); // thick cyan crosshairs for corresponding index stars. cairo_set_color(cairo, "cyan"); cairoutils_draw_marker(cairo, CAIROUTIL_MARKER_XCROSSHAIR, indexpix[2*theta[i]+0], indexpix[2*theta[i]+1], 3); cairo_stroke(cairo); } plotstuff_output(&pargs); } free(theta); free(fieldsigma2s); } free(fieldpix); free(indexpix); } if (xylist_close(xyls)) { logmsg("Failed to close XYLS file.\n"); } return 0; }
// 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); } } }