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/*
Copyright 2011 Thibaut Paumard, Frederic Vincent
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 "GyotoUtils.h"
#include "GyotoWorldline.h"
#include "GyotoStar.h"
#include "GyotoProperty.h"
#include "GyotoPhoton.h"
#include "GyotoPowerLawSpectrum.h"
#include "GyotoBlackBodySpectrum.h"
#include "GyotoFactoryMessenger.h"
#include <iostream>
#include <cmath>
#include <string>
#include <cstdlib>
#include <float.h>
#include <sstream>
#include <string.h>
using namespace std;
using namespace Gyoto;
using namespace Gyoto::Astrobj;
/// Properties
GYOTO_PROPERTY_START(Gyoto::Astrobj::Star,
"UniformSphere following a time-like Gyoto::Worldline.")
// Star only need to implement the Worldline interface on top of the
// UniformSphere interface, which is trivially tone with this macro:
GYOTO_WORLDLINE_PROPERTY_END(Star, UniformSphere::properties)
// XML I/O
// We also need to parse and write Position+Velocity in addition to
// InitCoord, which is done by overriding setParameter(), setParameters()
// and fillProperty()
int Star::setParameter(std::string name,
std::string content,
std::string unit) {
double coord[8];
if (name=="InitialCoordinate") {
name="InitCoord";
return UniformSphere::setParameter(name, content, unit);
} else if (name=="Position") {
if (FactoryMessenger::parseArray(content, coord, 4) != 4)
GYOTO_ERROR("Worldline \"Position\" requires exactly 4 tokens");
if (init_vel_) {
setInitCoord(coord, init_vel_);
delete[] init_vel_; init_vel_=NULL;
} else setPosition(coord);
wait_pos_ = 0;
} else if (name=="Velocity") {
if (FactoryMessenger::parseArray(content, coord, 3) != 3)
GYOTO_ERROR("Worldline \"Velocity\" requires exactly 3 tokens");
if (wait_pos_) {
if (init_vel_) delete [] init_vel_;
init_vel_ = new double[3];
memcpy(init_vel_, coord, 3*sizeof(double));
} else setVelocity(coord);
}
else return UniformSphere::setParameter(name, content, unit);
return 0;
}
#ifdef GYOTO_USE_XERCES
void Star::fillProperty(Gyoto::FactoryMessenger *fmp, Property const &p) const {
if (p.name == "InitCoord") {
if (imin_ <= imax_) {
double coord[8];
getInitialCoord(coord);
// For massive particule, express initial condition with 3-velocity
double vel[3] = {coord[5]/coord[4], coord[6]/coord[4], coord[7]/coord[4]};
fmp -> setParameter ("Position", coord, 4);
fmp -> setParameter ("Velocity", vel, 3);
}
return;
}
UniformSphere::fillProperty(fmp, p);
}
void Star::setParameters(FactoryMessenger* fmp) {
wait_pos_ = 1;
metric(fmp->metric());
UniformSphere::setParameters(fmp);
wait_pos_ = 0;
if (init_vel_) {
delete[] init_vel_; init_vel_=NULL;
GYOTO_ERROR("Worldline::setParameters(): "
"Velocity was found but not Position");
}
}
#endif
///
Star::Star() :
UniformSphere("Star"),
Worldline()
{
# ifdef GYOTO_DEBUG_ENABLED
GYOTO_DEBUG << "done." << endl;
# endif
}
Star::Star(SmartPointer<Metric::Generic> met, double rad,
double const pos[4],
double const v[3]) :
UniformSphere("Star"),
Worldline()
{
if (debug()) {
cerr << "DEBUG: Star Construction " << endl
<< " POS=[" << pos[0];
for (int i=1; i<4; ++i) cerr << ", " << pos[i];
cerr << "]\n VEL=[" << v[0] ;
for (int i=1; i<3; ++i) cerr << ", " << v[i];
cerr << "]\n RADIUS=" << rad << endl;
}
metric(met);
setInitCoord(pos, v);
radius(rad);
}
Star::Star(const Star& orig) :
UniformSphere(orig), Worldline(orig)
{
GYOTO_DEBUG << endl;
// we have two distinct clones of the metric, not good...
Worldline::metric(UniformSphere::metric());
}
Star* Star::clone() const { return new Star(*this); }
Star::~Star() {
if (debug()) cerr << "DEBUG: Star::~Star()\n";
}
string Star::className() const { return string("Star"); }
string Star::className_l() const { return string("star"); }
SmartPointer<Metric::Generic> Star::metric() const { return gg_; }
void Star::metric(SmartPointer<Metric::Generic> gg) {
UniformSphere::metric(gg);
Worldline::metric(gg);
}
void Star::setInitialCondition(double const coord[8]) {
if (!metric_) GYOTO_ERROR("Please set metric before calling Star::setInitialCondition(double*)");
Worldline::setInitialCondition(metric_, coord, 0);
}
double Star::getMass() const {return 1. ;}
void Star::getVelocity(double const pos[4], double vel[4]) {
getCoord(pos, 1, NULL, NULL, NULL, vel, vel+1, vel+2, vel+3);
}
void Star::getCartesian(double const * const t,
size_t const n,
double* const x, double*const y, double*const z,
double*const xp, double*const yp, double*const zp) {
Worldline::getCartesian(t, n, x, y, z, xp, yp, zp);
}
double Star::rMax() {
if (rmax_==DBL_MAX && i0_>=imin_ && i0_<=imax_) {
size_t i;
rmax_=x1_[i0_];
int ck=gg_->coordKind();
for (i=imin_;i<=imax_;++i) {
if (x1_[i]>rmax_) rmax_=x1_[i];
if (ck==GYOTO_COORDKIND_CARTESIAN) {
if (x2_[i]>rmax_) rmax_=x2_[i];
if (x3_[i]>rmax_) rmax_=x3_[i];
}
}
rmax_ *= 3.;
}
return rmax_;
}
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