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

97 lines
3 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) 2003-2010 Max-Planck-Society
* Author: Martin Reinecke
*/
#include <fstream>
#include "cxxutils.h"
#include "paramfile.h"
#include "healpix_map.h"
#include "healpix_map_fitsio.h"
#include "fitshandle.h"
#include "levels_facilities.h"
using namespace std;
int hotspots_cxx_module (int argc, const char **argv)
{
module_startup ("hotspots_cxx", argc, argv, 2, "<parameter file>");
paramfile params (argv[1]);
string infile = params.find<string>("infile");
string mapfile = params.find<string>("outmap","");
bool have_mapfile = mapfile!="";
string minfile = params.find<string>("minfile","");
bool have_minfile = minfile!="";
string maxfile = params.find<string>("maxfile","");
bool have_maxfile = maxfile!="";
planck_assert (have_mapfile || have_minfile || have_maxfile,
"no output file specified");
Healpix_Map<float> inmap;
read_Healpix_map_from_fits(infile,inmap,1,2);
Healpix_Map<float> outmap;
if (have_mapfile) outmap.Set(inmap.Order(),inmap.Scheme());
ofstream minout, maxout;
if (have_minfile) minout.open(minfile.c_str());
if (have_maxfile) maxout.open(maxfile.c_str());
fix_arr<int,8> nb;
// FIXME: This should be parallelized
for (int m=0; m<inmap.Npix(); ++m)
{
float value = inmap[m];
if (!approx<double>(value, Healpix_undef))
{
inmap.neighbors(m,nb);
bool ismax=true, ismin=true;
for (tsize n=0; n<nb.size(); ++n)
{
if (nb[n] >=0)
{
float nbval = inmap[nb[n]];
if (!approx<double>(nbval, Healpix_undef))
{
if (nbval>=value) ismax=false;
if (nbval<=value) ismin=false;
}
}
}
if (have_mapfile)
outmap[m] = float((ismax||ismin) ? value : Healpix_undef);
if (have_minfile && ismin) minout << m << " " << value << endl;
if (have_maxfile && ismax) maxout << m << " " << value << endl;
}
}
if (have_mapfile)
write_Healpix_map_to_fits (mapfile,outmap,PLANCK_FLOAT32);
return 0;
}