コード例 #1
0
ファイル: fitstable.c プロジェクト: NGTS/astrometry.net
int fitstable_switch_to_reading(fitstable_t* table) {
	assert(in_memory(table));
	// store the current extension.
	fitstable_next_extension(table);
	// This resets all the meta-data about the table, meaning a reader
	// can then re-add columns it is interested in.
	fitstable_clear_table(table);
	table->extension = 1;
	return fitstable_open_extension(table, table->extension);
}
コード例 #2
0
ファイル: search-index.c プロジェクト: NGTS/astrometry.net
int main(int argc, char **argv) {
    int argchar;
	double ra=HUGE_VAL, dec=HUGE_VAL, radius=HUGE_VAL;
	int loglvl = LOG_MSG;
	char** myargs;
	int nmyargs;
	int i;
	char* outfn = NULL;
	fitstable_t* table = NULL;

    while ((argchar = getopt (argc, argv, OPTIONS)) != -1)
        switch (argchar) {
		case 'o':
			outfn = optarg;
			break;
		case 'r':
			ra = atof(optarg);
			break;
		case 'd':
			dec = atof(optarg);
			break;
		case 'R':
			radius = atof(optarg);
			break;
		case 'v':
			loglvl++;
			break;
        case '?':
            fprintf(stderr, "Unknown option `-%c'.\n", optopt);
		case 'h':
		default:
			printHelp(argv[0]);
			return -1;
		}
	log_init(loglvl);
	nmyargs = argc - optind;
	myargs = argv + optind;

	if (nmyargs < 1) {
		printHelp(argv[0]);
		exit(-1);
	}
	if (ra == HUGE_VAL || dec == HUGE_VAL || radius == HUGE_VAL) {
		printHelp(argv[0]);
		exit(-1);
	}

	if (outfn) {
		table = fitstable_open_for_writing(outfn);
		if (!table) {
			ERROR("Failed to open output table");
			exit(-1);
		}
		if (fitstable_write_primary_header(table)) {
			ERROR("Failed to write primary header of output table");
			exit(-1);
		}
	}

	for (i=0; i<nmyargs; i++) {
		char* indexfn = myargs[i];
		index_t index;
		sl* cols;
		int* inds;
		double* radecs;
		int N;
		int j;
		fitstable_t* tagtable = NULL;

		logmsg("Reading index \"%s\"...\n", indexfn);
		if (!index_load(indexfn, 0, &index)) {
			ERROR("Failed to read index \"%s\"", indexfn);
			continue;
		}

		logmsg("Index %s: id %i, healpix %i (nside %i), %i stars, %i quads, dimquads=%i, scales %g to %g arcmin.\n",
			   index.indexname, index.indexid, index.healpix, index.hpnside,
			   index.nstars, index.nquads, index.dimquads,
			   arcsec2arcmin(index.index_scale_lower),
			   arcsec2arcmin(index.index_scale_upper));

		cols = startree_get_tagalong_column_names(index.starkd, NULL);
		{
			char* colstr = sl_join(cols, ", ");
			logmsg("Tag-along columns: %s\n", colstr);
			free(colstr);
		}

		logmsg("Searching for stars around RA,Dec (%g, %g), radius %g deg.\n",
			   ra, dec, radius);
		startree_search_for_radec(index.starkd, ra, dec, radius,
								  NULL, &radecs, &inds, &N);
		logmsg("Found %i stars\n", N);

		if (table) {
			int tagsize;
			int rowsize;
			char* rowbuf = NULL;

			if (i > 0) {
				fitstable_next_extension(table);
				fitstable_clear_table(table);
			}

			tagtable = startree_get_tagalong(index.starkd);
			if (tagtable) {
				fitstable_add_fits_columns_as_struct(tagtable);
				logverb("Input tag-along table:\n");
				if (log_get_level() >= LOG_VERB)
					fitstable_print_columns(tagtable);
				fitstable_copy_columns(tagtable, table);
			}
			tagsize = fitstable_get_struct_size(table);
			debug("tagsize=%i\n", tagsize);
			// Add RA,Dec at the end of the row...
			fitstable_add_write_column_struct(table, fitscolumn_double_type(), 1, tagsize, fitscolumn_double_type(), "RA", "degrees");
			fitstable_add_write_column_struct(table, fitscolumn_double_type(), 1, tagsize + sizeof(double), fitscolumn_double_type(), "DEC", "degrees");
			rowsize = fitstable_get_struct_size(table);
			assert(rowsize == tagsize + 2*sizeof(double));
			debug("rowsize=%i\n", rowsize);
			rowbuf = malloc(rowsize);

			logverb("Output table:\n");
			if (log_get_level() >= LOG_VERB)
				fitstable_print_columns(table);

			if (fitstable_write_header(table)) {
				ERROR("Failed to write header of output table");
				exit(-1);
			}

			for (j=0; j<N; j++) {
				if (tagtable) {
					if (fitstable_read_struct(tagtable, inds[j], rowbuf)) {
						ERROR("Failed to read row %i of tag-along table", inds[j]);
						exit(-1);
					}
				}
				// Add RA,Dec to end of struct...
				memcpy(rowbuf + tagsize, radecs+2*j+0, sizeof(double));
				memcpy(rowbuf + tagsize + sizeof(double), radecs+2*j+1, sizeof(double));
				if (fitstable_write_struct(table, rowbuf)) {
					ERROR("Failed to write row %i of output", j);
					exit(-1);
				}
			}
			free(rowbuf);

			if (fitstable_fix_header(table)) {
				ERROR("Failed to fix header of output table");
				exit(-1);
			}

		}

		sl_free2(cols);
		free(radecs);
		free(inds);

		index_close(&index);
	}

	if (table) {
		if (fitstable_close(table)) {
			ERROR("Failed to close output table");
			exit(-1);
		}
	}

	return 0;
}
コード例 #3
0
ファイル: index-to-table.c プロジェクト: blackball/an-test6
int main(int argc, char *argv[]) {
    int argchar;
	char* progname = argv[0];
    index_t* index;
    fitstable_t* table;
	char* indexfn = NULL;
	char* outfn = NULL;
	int i, D, N;

    while ((argchar = getopt (argc, argv, OPTIONS)) != -1) {
		switch (argchar) {
		case 'i':
			indexfn = optarg;
			break;
		case 'o':
			outfn = optarg;
			break;
		default:
		case 'h':
			printHelp(progname);
			exit(0);
		}
	}

	if (!(indexfn && outfn)) {
		printHelp(progname);
		exit(-1);
	}

    index = index_load(indexfn, 0, NULL);
    if (!index) {
        ERROR("Failed to open index");
        exit(-1);
    }

    table = fitstable_open_for_writing(outfn);
    if (!table) {
        ERROR("Failed to open output file for writing");
        exit(-1);
    }
    D = index_get_quad_dim(index);
    fitstable_add_write_column_array(table, fitscolumn_i32_type(), D,
                                     "quads", "");
    if (fitstable_write_primary_header(table) ||
        fitstable_write_header(table)) {
        ERROR("Failed to write headers");
        exit(-1);
    }

    N = index_nquads(index);
    for (i=0; i<N; i++) {
        unsigned int quad[D];
        quadfile_get_stars(index->quads, i, quad);
        if (fitstable_write_row(table, quad)) {
            ERROR("Failed to write quad %i", i);
            exit(-1);
        }
    }

    if (fitstable_fix_header(table)) {
        ERROR("Failed to fix quad header");
        exit(-1);
    }

    fitstable_next_extension(table);
    fitstable_clear_table(table);

    // write star RA,Dec s.
    fitstable_add_write_column(table, fitscolumn_double_type(), "RA", "deg");
    fitstable_add_write_column(table, fitscolumn_double_type(), "Dec", "deg");

    if (fitstable_write_header(table)) {
        ERROR("Failed to write star header");
        exit(-1);
    }

    N = index_nstars(index);
    for (i=0; i<N; i++) {
        double xyz[3];
        double ra, dec;
        startree_get(index->starkd, i, xyz);
        xyzarr2radecdeg(xyz, &ra, &dec);
        if (fitstable_write_row(table, &ra, &dec)) {
            ERROR("Failed to write star %i", i);
            exit(-1);
        }
    }

    if (fitstable_fix_header(table) ||
        fitstable_close(table)) {
        ERROR("Failed to fix star header and close");
        exit(-1);
    }
    

    index_close(index);

	return 0;
}