vide_public/external/healpix/Healpix_cxx/calc_powspec_module.cc
2012-10-30 13:56:48 -04:00

73 lines
2.1 KiB
C++

/*
* This file is part of Healpix_cxx.
*
* Healpix_cxx is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Healpix_cxx is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Healpix_cxx; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* For more information about HEALPix, see http://healpix.jpl.nasa.gov
*/
/*
* Healpix_cxx is being developed at the Max-Planck-Institut fuer Astrophysik
* and financially supported by the Deutsches Zentrum fuer Luft- und Raumfahrt
* (DLR).
*/
/*
* Copyright (C) 2004-2010 Max-Planck-Society
* Author: Martin Reinecke
*/
#include "fitshandle.h"
#include "alm.h"
#include "alm_fitsio.h"
#include "powspec.h"
#include "powspec_fitsio.h"
#include "alm_powspec_tools.h"
#include "levels_facilities.h"
using namespace std;
int calc_powspec_module (int argc, const char **argv)
{
announce ("calc_powspec");
planck_assert (argc==3||argc==4,
"usage: calc_powspec <almfile1> [<almfile2>] <powspec_file>");
if (argc==3)
{
int lmax,mmax;
get_almsize(argv[1],lmax,mmax,2);
Alm<xcomplex<float> > alm;
read_Alm_from_fits (argv[1],alm,lmax,mmax,2);
PowSpec powspec;
extract_powspec (alm,powspec);
write_powspec_to_fits (argv[2],powspec,1);
}
else
{
int lmax,mmax;
get_almsize(argv[1],lmax,mmax,2);
Alm<xcomplex<float> > alm1;
read_Alm_from_fits (argv[1],alm1,lmax,mmax,2);
get_almsize(argv[2],lmax,mmax,2);
Alm<xcomplex<float> > alm2;
read_Alm_from_fits (argv[2],alm2,lmax,mmax,2);
PowSpec powspec;
extract_crosspowspec (alm1,alm2,powspec);
write_powspec_to_fits (argv[3],powspec,1);
}
return 0;
}