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/*************************************************************************
* Johns Hopkins University
* Center For Astrophysical Sciences
* FUSE
*************************************************************************
*
*
* Usage:
* extract_jitter [-h] [-v level] input_file
*
*
*
* Arguments:
* input_file : jitter file
*
*
*
*
*
*
* Options:
* -h: this help message
* -v: verbosity level (=1; 0 is silent)
*
*
*
*
* History: 11/04/2004 v1.0 bjg
* 06/03/2005 v1.1 wvd Fix bug that set expstart=expend.
* Delete unused variables.
*
***************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <math.h>
#include "calfuse.h"
static char CF_PRGM_ID[]= "extract_jitter";
static char CF_VER_NUM[]= "1.0";
int main(int argc,char *argv[]){
char input_filename[FLEN_CARD];
char output_filename_x[FLEN_CARD];
char output_filename_y[FLEN_CARD];
FILE * output_file_x;
FILE * output_file_y;
fitsfile * infits;
int intnull=0,anynull;
int status=0;
int hdutype=0;
long i, N;
int ncol;
double * hdu2_time;
double * hdu2_dx;
double * hdu2_dy;
int * hdu2_trkflg;
double mjd,dx,dy;
int trkflg;
double expstart, expend;
int optc;
char opts[] = "hfv:";
char usage[] =
"Usage:\n"
" extract_jitter [-h] [-v level] input_file\n\n"
"Arguments:\n"
" input_file : jitter file (FITS)\n\n";
char option[] =
"Options:\n"
" -h: this help message \n"
" -v: verbosity level (=1; 0 is silent) \n";
verbose_level = 1;
/* Check number of options and arguments */
while ((optc = getopt(argc, argv, opts)) != -1) {
switch(optc) {
case 'h':
printf("%s\n%s", usage, option);
return EXIT_SUCCESS;
case 'v':
verbose_level = atoi(optarg);
break;
}
}
/* Initialize error checking. */
cf_error_init(CF_PRGM_ID, CF_VER_NUM, stderr);
if (argc != optind+1)
cf_if_error("%s\nIncorrect number of program arguments", usage);
cf_timestamp(CF_PRGM_ID, CF_VER_NUM, "Started execution.");
strcpy(input_filename,argv[optind]);
strcpy(output_filename_x,input_filename);
strcpy(output_filename_y,input_filename);
strcat(output_filename_x,".jtx");
strcat(output_filename_y,".jty");
/* Create the output file */
output_file_x = fopen(output_filename_x,"w");
output_file_y = fopen(output_filename_y,"w");
FITS_open_file(&infits,input_filename,READONLY,&status);
FITS_read_key(infits,TDOUBLE,"EXPSTART",&expstart,NULL,&status);
FITS_read_key(infits,TDOUBLE,"EXPEND",&expend,NULL,&status);
FITS_movabs_hdu(infits,2,&hdutype,&status);
FITS_read_key(infits,TLONG,"NAXIS2",&N,NULL,&status);
hdu2_time=(double *)malloc(N*sizeof(double));
hdu2_dx=(double *)malloc(N*sizeof(double));
hdu2_dy=(double *)malloc(N*sizeof(double));
hdu2_trkflg=(int *)malloc(N*sizeof(int));
FITS_get_colnum(infits, TRUE, "TIME", &ncol, &status);
FITS_read_col(infits, TDOUBLE, ncol, 1, 1, N, &intnull,
hdu2_time, &anynull, &status);
FITS_get_colnum(infits, TRUE, "DX", &ncol, &status);
FITS_read_col(infits, TDOUBLE, ncol, 1, 1, N, &intnull,
hdu2_dx, &anynull, &status);
FITS_get_colnum(infits, TRUE, "DY", &ncol, &status);
FITS_read_col(infits, TDOUBLE, ncol, 1, 1, N, &intnull,
hdu2_dy, &anynull, &status);
FITS_get_colnum(infits, TRUE, "TRKFLG", &ncol, &status);
FITS_read_col(infits, TINT, ncol, 1, 1, N, &intnull,
hdu2_trkflg, &anynull, &status);
for (i=0;i<N-100;i++){
mjd=expstart+(hdu2_time[i])/(3600.0*24.0);
dx=hdu2_dx[i];
dy=hdu2_dy[i];
trkflg=hdu2_trkflg[i];
if ((mjd>=expstart) && (mjd<=expend) && (trkflg==5)){
fprintf(output_file_x,"%15lf %15lf\n",mjd,dx);
fprintf(output_file_y,"%15lf %15lf\n",mjd,dy);
}
}
free(hdu2_time);
free(hdu2_dx);
free(hdu2_dy);
free(hdu2_trkflg);
FITS_close_file(infits,&status);
fclose(output_file_x);
fclose(output_file_y);
cf_timestamp(CF_PRGM_ID, CF_VER_NUM, "Finished execution.");
return EXIT_SUCCESS;
}
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