int scamp_write_field(const qfits_header* imageheader, const sip_t* wcs, const starxy_t* xy, const char* filename) { scamp_cat_t* scamp; qfits_header* hdr; int i; if (!imageheader) hdr = qfits_table_prim_header_default(); else hdr = qfits_header_copy(imageheader); sip_add_to_header(hdr, wcs); scamp = scamp_catalog_open_for_writing(filename, FALSE); if (!scamp) { return -1; } if (scamp_catalog_write_field_header(scamp, hdr)) { return -1; } qfits_header_destroy(hdr); for (i=0; i<starxy_n(xy); i++) { scamp_obj_t obj; obj.x = starxy_getx(xy, i); obj.y = starxy_gety(xy, i); obj.err_a = 1.0; obj.err_b = 1.0; obj.err_theta = 0.0; if (xy->flux) obj.flux = xy->flux[i]; else obj.flux = 1000.0; obj.err_flux = 1.0; obj.flags = 0; if (scamp_catalog_write_object(scamp, &obj)) { return -1; } } if (scamp_catalog_close(scamp)) { return -1; } return 0; }
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; }