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/*
# This file is part of the Astrometry.net suite.
# Licensed under a 3-clause BSD style license - see LICENSE
*/
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include "healpix.h"
#include "starutil.h"
#include "rdlist.h"
#include "bl.h"
char* OPTIONS = "hqf:N:";
void printHelp(char* progname) {
fprintf(stderr, "Usage: %s [options]\n"
" -f <rdls-file>\n"
" [-N nside] (default 1)\n"
" [-h] print help msg\n"
" [-q] quiet mode\n",
progname);
}
int main(int argc, char** args) {
char* filename = NULL;
int npoints;
int i, j;
int* healpixes;
int argchar;
char* progname = args[0];
il** lists;
anbool quiet = FALSE;
rdlist* rdls;
int Nside = 1;
int N;
while ((argchar = getopt (argc, args, OPTIONS)) != -1)
switch (argchar) {
case 'N':
Nside = atoi(optarg);
break;
case 'f':
filename = optarg;
break;
case 'h':
printHelp(progname);
exit(0);
case 'q':
quiet = TRUE;
break;
case '?':
fprintf(stderr, "Unknown option `-%c'.\n", optopt);
default:
exit(-1);
}
if (!filename) {
printHelp(progname);
exit(-1);
}
fprintf(stderr, "Opening RDLS file %s...\n", filename);
rdls = rdlist_open(filename);
if (!rdls) {
fprintf(stderr, "Failed to open RDLS file.\n");
exit(-1);
}
N = 12 * Nside * Nside;
healpixes = malloc(N * sizeof(int));
lists = calloc(N, sizeof(il*));
/*
for (i=0; i<N; i++) {
lists[i] = il_new(256);
}
*/
for (j=1; j<=rdls_n_fields(rdls); j++) {
rd* points;
points = rdlist_get_field(rdls, j);
if (!points) {
fprintf(stderr, "error reading field %i\n", j);
break;
}
memset(healpixes, 0, N * sizeof(int));
npoints = rd_size(points);
for (i=0; i<npoints; i++) {
double ra, dec;
int hp;
ra = deg2rad(rd_refra (points, i));
dec = deg2rad(rd_refdec(points, i));
if (Nside > 1)
hp = radectohealpix_nside(ra, dec, Nside);
else
hp = radectohealpix(ra, dec);
if ((hp < 0) || (hp >= N)) {
printf("hp=%i\n", hp);
continue;
}
healpixes[hp] = 1;
}
if (!quiet) {
printf("Field %i: healpixes ", j);
for (i=0; i<N; i++) {
if (healpixes[i])
printf("%i ", i);
}
printf("\n");
fflush(stdout);
}
for (i=0; i<N; i++)
if (healpixes[i]) {
if (!lists[i])
lists[i] = il_new(256);
il_append(lists[i], j);
}
free_rd(points);
}
for (i=0; i<N; i++) {
int N;
if (!lists[i])
continue;
printf("HP %i: ", i);
N = il_size(lists[i]);
for (j=0; j<N; j++)
printf("%i ", il_get(lists[i], j));
il_free(lists[i]);
printf("\n");
}
free(lists);
free(healpixes);
rdlist_close(rdls);
return 0;
}
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