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/*
Copyright 2020 Thibaut Paumard & Frédéric 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 "GyotoFactoryMessenger.h"
#include "GyotoShift.h"
#include "GyotoError.h"
#include "GyotoProperty.h"
using namespace std ;
using namespace Gyoto ;
using namespace Gyoto::Metric ;
//// Property list:
//
// Note that none of those lines ends with punctation. "," and ";" are
// added by the macros where needed. Three steps:
// 1- GYOTO_PROPERTY_START(<classname>)
// 2- For each Property we want to support, a line such as:
// GYOTO_PROPERTY_<type>(<classname>, <propertyname>, <accessorname>)
// Note that the BOOL type is a bit special: the argument
// <propertyname> is replaced by two arguments: <name_if_true> and
// <name_if_false>.
// 3- GYOTO_PROPERTY_END(<classname>, <pointer to parent's property list>)
//
////
GYOTO_PROPERTY_START(Shift,
"Shift space-time.")
GYOTO_PROPERTY_METRIC(Shift, SubMetric, subMetric,
"The underlying space-time to shift.")
GYOTO_PROPERTY_VECTOR_DOUBLE(Shift, Offset, offset,
"Amount by which to shift (4 components).")
GYOTO_PROPERTY_END(Shift, Generic::properties)
// This is the minimal constructor: it just sets the coordinate kind and
// the metric kind name.
Shift::Shift() :
Generic(GYOTO_COORDKIND_CARTESIAN, "Shift"),
submet_(NULL)
{for (int i=0; i<4; ++i) offset_[i]=0.;}
Shift* Shift::clone() const { return new Shift(*this); }
Shift::~Shift(){
if (submet_) submet_->unhook(this);
}
SmartPointer<Metric::Generic> Shift::subMetric() const { return submet_; }
void Shift::subMetric(SmartPointer<Metric::Generic> submet) {
if (submet_) submet_->unhook(this);
submet_=submet;
if (submet_) {
submet_->hook(this);
mass(submet_->mass());
}
}
void Shift::mass(double m) {
submet_->mass(m);
// hook system will also set mass_;
}
void Shift::tell(Hook::Teller* msg) {
if (msg==submet_) Generic::mass(submet_->mass());
}
void Shift::offset(std::vector<double> const &v) {
GYOTO_DEBUG_EXPR(v.size());
if (v.size() !=4)
GYOTO_ERROR("Shift offset needs exactly 4 tokens");
for (int i=0; i<4; ++i) offset_[i]=v[i];
}
std::vector<double> Shift::offset() const {
std::vector<double> res(4, 0.);
for (int i=0; i<4; ++i) res[i]=offset_[i];
return res;
}
void Shift::gmunu(double g[4][4], const double pos[4]) const
{
double spos[4] = {pos[0]-offset_[0],
pos[1]-offset_[1],
pos[2]-offset_[2],
pos[3]-offset_[3]};
submet_->gmunu(g,spos);
}
void Shift::gmunu_up(double gup[4][4], const double pos[4]) const
{
double spos[4] = {pos[0]-offset_[0],
pos[1]-offset_[1],
pos[2]-offset_[2],
pos[3]-offset_[3]};
submet_->gmunu_up(gup,spos);
}
void Shift::jacobian(double jac[4][4][4], const double pos[4]) const {
double spos[4] = {pos[0]-offset_[0],
pos[1]-offset_[1],
pos[2]-offset_[2],
pos[3]-offset_[3]};
submet_->jacobian(jac,spos);
}
int Shift::isStopCondition(double const coord[8]) const {
double scoord[8] = {coord[0]-offset_[0],
coord[1]-offset_[1],
coord[2]-offset_[2],
coord[3]-offset_[3],
coord[4], coord[5], coord[6], coord[7]};
return submet_->isStopCondition(scoord);
}
#ifdef GYOTO_USE_XERCES
void Shift::fillProperty(Gyoto::FactoryMessenger *fmp, Property const &p) const {
if (p.type == Property::metric_t && submet_) {
FactoryMessenger * childfmp = fmp -> makeChild ( "SubMetric" );
submet_ -> fillElement(childfmp);
delete childfmp;
} else Object::fillProperty(fmp, p);
}
void Shift::setParameters(FactoryMessenger *fmp) {
GYOTO_DEBUG << std::endl;
std::string name="", content="", unit="";
std::vector<std::string> plugin;
FactoryMessenger * child = NULL;
while (fmp->getNextParameter(&name, &content, &unit)) {
GYOTO_DEBUG_EXPR(name);
if (name=="SubMetric") {
content = fmp -> getAttribute("kind");
plugin = split(fmp -> getAttribute("plugin"), ",");
child = fmp -> getChild();
subMetric ((*Metric::getSubcontractor(content, plugin))(child, plugin));
delete child;
} else setParameter(name, content, unit);
}
GYOTO_DEBUG << "done" << std::endl;
}
#endif
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