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/*
Copyright 2011-2016 Thibaut Paumard
This file is part of Gyoto.
Gyoto 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 3 of the License, or
(at your option) any later version.
Gyoto 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 Gyoto. If not, see <http://www.gnu.org/licenses/>.
*/
#include "GyotoSpectrum.h"
#include "GyotoRegister.h"
#include "GyotoUtils.h"
#include "GyotoFactoryMessenger.h"
#include <cmath>
#include <iostream>
using namespace Gyoto;
using namespace std;
/// Properties
// There is no generic properties for spectra. Nevertheless, we define
// this to derived classes can point to Spectrum::Generic::properties
// rather than Object::properties
#include "GyotoProperty.h"
GYOTO_PROPERTY_START(Spectrum::Generic)
GYOTO_PROPERTY_END(Spectrum::Generic, Object::properties)
///
Spectrum::Generic::Generic()
: SmartPointee(), Object() {}
Spectrum::Generic::Generic(const string kin)
: SmartPointee(), Object(kin) {}
Spectrum::Generic::Generic(const Generic& o)
: SmartPointee(o), Object(o) {}
Spectrum::Generic * Spectrum::Generic::clone() const
{
string msg = "Spectrum::clone() called: "
"cloning unimplemented for Spectrum kind ";
msg += kind_;
GYOTO_ERROR(msg);
return const_cast<Spectrum::Generic*>(this);
// avoid warning, we won't get to that point
}
Spectrum::Generic::~Generic() { GYOTO_DEBUG << endl; }
double Spectrum::Generic::integrate(double nu1, double nu2) {
double nu;
if (nu1>nu2) {nu=nu1; nu1=nu2; nu2=nu;}
double Inu1 = operator()(nu1), Inu2=operator()(nu2);
double dnux2 = ((nu2-nu1)*2.);
double Icur = (Inu2+Inu1)*dnux2*0.25;
double Iprev;
if (debug())
cerr << "DEBUG: Spectrum::Generic::integrate(): "
<< "Icur=" << Icur << endl;
do {
Iprev = Icur;
dnux2 *= 0.5;
for (nu = nu1 + 0.5*dnux2; nu < nu2; nu += dnux2) {
Icur += operator()(nu) * dnux2;
}
Icur *= 0.5;
if (debug())
cerr << "DEBUG: Spectrum::Generic::integrate(): "
<< "Icur=" << Icur << endl;
} while( fabs(Icur-Iprev) > (1e-2 * Icur) );
if (debug())
cerr << "DEBUG: Spectrum::Generic::integrate(): "
<< "dnu=" << dnux2*0.5
<< "=(nu2-nu1)/" << (nu2-nu1)/(dnux2*0.5) << endl;
return Icur;
}
double Spectrum::Generic::integrate(double nu1, double nu2,
const Spectrum::Generic * opacity,
double dsem) {
double nu;
if (nu1>nu2) {nu=nu1; nu1=nu2; nu2=nu;}
double Inu1 = operator()(nu1, (*opacity)(nu1), dsem),
Inu2=operator()(nu2, (*opacity)(nu2), dsem);
double dnux2 = ((nu2-nu1)*2.);
double Icur = (Inu2+Inu1)*dnux2*0.25;
double Iprev;
if (debug())
cerr << "DEBUG: Spectrum::Generic::integrate(): "
<< "Icur=" << Icur << endl;
do {
Iprev = Icur;
dnux2 *= 0.5;
for (nu = nu1 + 0.5*dnux2; nu < nu2; nu += dnux2) {
Icur += operator()(nu, (*opacity)(nu), dsem) * dnux2;
}
Icur *= 0.5;
if (debug())
cerr << "DEBUG: Spectrum::Generic::integrate(): "
<< "Icur=" << Icur << endl;
} while( fabs(Icur-Iprev) > (1e-2 * Icur) );
if (debug())
cerr << "DEBUG: Spectrum::Generic::integrate(): "
<< "dnu=" << dnux2*0.5
<< "=(nu2-nu1)/" << (nu2-nu1)/(dnux2*0.5) << endl;
return Icur;
}
double Spectrum::Generic::operator()(double nu, double opacity, double ds)
const {
double thickness;
// assume emissivity = opacity
if ((thickness=(opacity*ds))) return operator()(nu) * (1. - exp (-thickness)) ;
return 0.;
}
Register::Entry* Gyoto::Spectrum::Register_ = NULL;
void Gyoto::Spectrum::Register(std::string name,
Gyoto::Spectrum::Subcontractor_t* scp)
{
Register::Entry* ne =
new Register::Entry(name,
(Gyoto::SmartPointee::Subcontractor_t*)scp,
Gyoto::Spectrum::Register_);
Gyoto::Spectrum::Register_ = ne;
}
GYOTO_GETSUBCONTRACTOR(Spectrum)
void Gyoto::Spectrum::initRegister() {
if (Gyoto::Spectrum::Register_) delete Gyoto::Spectrum::Register_;
Gyoto::Spectrum::Register_ = NULL;
}
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