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124 lines
4.1 KiB
C++
124 lines
4.1 KiB
C++
/*
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* This file is part of Healpix_cxx.
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*
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* Healpix_cxx is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Healpix_cxx is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Healpix_cxx; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* For more information about HEALPix, see http://healpix.jpl.nasa.gov
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*/
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/*
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* Healpix_cxx is being developed at the Max-Planck-Institut fuer Astrophysik
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* and financially supported by the Deutsches Zentrum fuer Luft- und Raumfahrt
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* (DLR).
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*/
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/*
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* Copyright (C) 2003-2010 Max-Planck-Society
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* Author: Martin Reinecke
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*/
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#include "xcomplex.h"
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#include "cxxutils.h"
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#include "paramfile.h"
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#include "healpix_data_io.h"
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#include "alm.h"
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#include "alm_fitsio.h"
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#include "alm_powspec_tools.h"
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#include "fitshandle.h"
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#include "levels_facilities.h"
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#include "lsconstants.h"
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using namespace std;
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namespace {
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template<typename T> void mult_alm (paramfile ¶ms)
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{
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string infile = params.template find<string>("infile");
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string outfile = params.template find<string>("outfile");
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int nside_pixwin_in = params.template find<int>("nside_pixwin_in",0);
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planck_assert (nside_pixwin_in>=0,"nside_pixwin_in must be >= 0");
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int nside_pixwin_out = params.template find<int>("nside_pixwin_out",0);
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planck_assert (nside_pixwin_out>=0,"nside_pixwin_out must be >= 0");
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double fwhm_in = arcmin2rad*params.template find<double>("fwhm_arcmin_in",0);
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planck_assert (fwhm_in>=0,"fwhm_arcmin_in must be >= 0");
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double fwhm_out = arcmin2rad*params.template find<double>("fwhm_arcmin_out",0);
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planck_assert (fwhm_out>=0,"fwhm_arcmin_out must be >= 0");
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string datadir;
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if ((nside_pixwin_in>0) || (nside_pixwin_out>0))
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datadir = params.template find<string>("healpix_data");
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bool polarisation = params.template find<bool>("polarisation");
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if (!polarisation)
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{
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int nlmax, nmmax;
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get_almsize(infile, nlmax, nmmax, 2);
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Alm<xcomplex<T> > alm;
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read_Alm_from_fits(infile,alm,nlmax,nmmax,2);
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if (fwhm_in>0) smoothWithGauss (alm, -fwhm_in);
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arr<double> temp(nlmax+1);
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if (nside_pixwin_in>0)
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{
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read_pixwin(datadir,nside_pixwin_in,temp);
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for (int l=0; l<=nlmax; ++l)
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temp[l] = 1/temp[l];
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alm.ScaleL (temp);
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}
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if (nside_pixwin_out>0)
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{
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read_pixwin(datadir,nside_pixwin_out,temp);
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alm.ScaleL (temp);
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}
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if (fwhm_out>0) smoothWithGauss (alm, fwhm_out);
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write_Alm_to_fits (outfile,alm,nlmax,nmmax,planckType<T>());
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}
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else
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{
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int nlmax, nmmax;
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get_almsize_pol(infile, nlmax, nmmax);
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Alm<xcomplex<T> > almT, almG, almC;
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read_Alm_from_fits(infile,almT,almG,almC,nlmax,nmmax,2);
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if (fwhm_in>0) smoothWithGauss (almT, almG, almC, -fwhm_in);
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arr<double> temp(nlmax+1), pol(nlmax+1);
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if (nside_pixwin_in>0)
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{
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read_pixwin(datadir,nside_pixwin_in,temp,pol);
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for (int l=0; l<=nlmax; ++l)
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{ temp[l] = 1/temp[l]; pol[l] = 1/pol[l]; }
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almT.ScaleL(temp); almG.ScaleL(pol); almC.ScaleL(pol);
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}
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if (nside_pixwin_out>0)
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{
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read_pixwin(datadir,nside_pixwin_out,temp,pol);
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almT.ScaleL(temp); almG.ScaleL(pol); almC.ScaleL(pol);
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}
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if (fwhm_out>0) smoothWithGauss (almT, almG, almC, fwhm_out);
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write_Alm_to_fits (outfile,almT,almG,almC,nlmax,nmmax,planckType<T>());
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}
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}
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} // unnamed namespace
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int mult_alm_module (int argc, const char **argv)
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{
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module_startup ("mult_alm", argc, argv, 2, "<parameter file>");
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paramfile params (argv[1]);
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bool dp = params.find<bool> ("double_precision",false);
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dp ? mult_alm<double>(params) : mult_alm<float>(params);
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return 0;
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}
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