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/*
# This file is part of the Astrometry.net suite.
# Licensed under a 3-clause BSD style license - see LICENSE
*/
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <assert.h>
#include "os-features.h"
#include "index.h"
#include "quadfile.h"
#include "kdtree.h"
#include "starutil.h"
#include "mathutil.h"
#include "bl.h"
#include "starkd.h"
#include "boilerplate.h"
#include "log.h"
static const char* OPTIONS = "hvmM:";
void print_help(char* progname) {
BOILERPLATE_HELP_HEADER(stderr);
fprintf(stderr, "Usage: %s\n"
" [-h]: help\n"
" [-m]: measure range of mags of quad stars.\n"
" [-M <column-name>]: set name of magnitude column.\n"
" <index-base-name> [<index-base-name> ...]\n\n"
"\n", progname);
}
int main(int argc, char** args) {
int argchar;
anbool measmags = FALSE;
char* magcol = "mag";
int loglvl = LOG_MSG;
while ((argchar = getopt (argc, args, OPTIONS)) != -1)
switch (argchar) {
case 'm':
measmags = TRUE;
break;
case 'M':
magcol = optarg;
break;
case 'h':
print_help(args[0]);
exit(0);
case 'v':
loglvl++;
break;
}
log_init(loglvl);
log_to(stderr);
if (optind == argc) {
print_help(args[0]);
exit(-1);
}
for (; optind<argc; optind++) {
int lastgrass = 0;
int dimquads;
char* basename;
index_t* index;
int i, N, k;
basename = args[optind];
logmsg("Reading index %s\n", basename);
index = index_load(basename, 0, NULL);
dimquads = index_get_quad_dim(index);
N = index_nquads(index);
logmsg("%i quads.\n", N);
if (measmags) {
printf("# mag_mean mag_var mag_min mag_max");
for (k=0; k<dimquads; k++)
printf(" mag_%i", k);
printf("\n");
for (i=0; i<N; i++) {
int grass;
unsigned int stars[DQMAX];
double* mags;
double mean, var, mn, mx;
grass = (i * 80 / N);
if (grass != lastgrass) {
fprintf(stderr, ".");
fflush(stderr);
lastgrass = grass;
}
quadfile_get_stars(index->quads, i, stars);
mags = startree_get_data_column(index->starkd, magcol, stars, dimquads);
mean = var = 0.0;
for (k=0; k<dimquads; k++)
mean += mags[k];
mean /= (double)dimquads;
for (k=0; k<dimquads; k++)
var += square(mags[k] - mean);
var /= (double)dimquads;
mn = LARGE_VAL;
mx = -LARGE_VAL;
for (k=0; k<dimquads; k++) {
mn = MIN(mn, mags[k]);
mx = MAX(mx, mags[k]);
}
printf("%g %g %g %g", mean, var, mn, mx);
for (k=0; k<dimquads; k++)
printf(" %g", mags[k]);
printf("\n");
startree_free_data_column(index->starkd, mags);
/*
for (k=0; k<dimquads; k++)
startree_get_radec(index->starkd, stars[k], &ra, &dec);
*/
}
}
fprintf(stderr, "\n");
index_close(index);
}
return 0;
}
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