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132 lines
3.7 KiB
C++
132 lines
3.7 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 "powspec.h"
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#include "lsconstants.h"
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using namespace std;
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void PowSpec::dealloc()
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{
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tt_.dealloc();
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gg_.dealloc();
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cc_.dealloc();
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tg_.dealloc();
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tc_.dealloc();
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gc_.dealloc();
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}
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void PowSpec::assertArraySizes() const
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{
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planck_assert((num_specs==1) || (num_specs==4) || (num_specs==6),
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"incorrect number of spectral components");
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if (num_specs==1)
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planck_assert(multiequal(tsize(0),gg_.size(),cc_.size(),tg_.size(),
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tc_.size(),gc_.size()), "incorrect array sizes");
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if (num_specs==4)
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{
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planck_assert(multiequal(tt_.size(),gg_.size(),cc_.size(),tg_.size()),
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"incorrect array sizes");
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planck_assert(multiequal(tsize(0),tc_.size(),gc_.size()),
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"incorrect array sizes");
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}
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if (num_specs==6)
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planck_assert(multiequal(tt_.size(),gg_.size(),cc_.size(),tg_.size(),
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tc_.size(),gc_.size()), "incorrect array sizes");
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}
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bool PowSpec::consistentAutoPowspec() const
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{
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for (tsize l=0; l<tt_.size(); ++l)
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if (tt_[l]<0) return false;
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if (num_specs>=4)
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for (tsize l=0; l<tt_.size(); ++l)
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{
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if (gg_[l]<0) return false;
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if (cc_[l]<0) return false;
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if (abs(tg_[l])>sqrt(tt_[l]*gg_[l])) return false;
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}
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if (num_specs==6)
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for (tsize l=0; l<tt_.size(); ++l)
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{
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if (abs(tc_[l])>sqrt(tt_[l]*cc_[l])) return false;
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if (abs(gc_[l])>sqrt(gg_[l]*cc_[l])) return false;
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}
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return true;
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}
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void PowSpec::Set(arr<double> &tt_new)
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{
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dealloc();
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num_specs = 1;
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tt_.transfer(tt_new);
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//FIXME: temporarily relaxed to allow cross-spectra
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if (!consistentAutoPowspec())
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cerr << "Warning: negative values in TT spectrum" << endl;
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}
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void PowSpec::Set(arr<double> &tt_new, arr<double> &gg_new,
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arr<double> &cc_new, arr<double> &tg_new)
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{
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dealloc();
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num_specs = 4;
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tt_.transfer(tt_new); gg_.transfer(gg_new);
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cc_.transfer(cc_new); tg_.transfer(tg_new);
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assertArraySizes();
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}
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void PowSpec::Set(arr<double> &tt_new, arr<double> &gg_new, arr<double> &cc_new,
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arr<double> &tg_new, arr<double> &tc_new, arr<double> &gc_new)
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{
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Set (tt_new, gg_new, cc_new, tg_new);
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num_specs = 6;
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tc_.transfer(tc_new); gc_.transfer(gc_new);
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assertArraySizes();
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}
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void PowSpec::smoothWithGauss (double fwhm)
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{
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planck_assert (num_specs<=4, "not yet implemented for num_specs>4");
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double sigma = fwhm*fwhm2sigma;
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double fact_pol = exp(2*sigma*sigma);
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for (tsize l=0; l<tt_.size(); ++l)
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{
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double f1 = exp(-.5*l*(l+1)*sigma*sigma);
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double f2 = f1*fact_pol;
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tt_[l] *= f1*f1;
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if (num_specs>1)
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{
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gg_[l] *= f2*f2;
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cc_[l] *= f2*f2;
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tg_[l] *= f1*f2;
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}
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}
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}
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