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/*
* Accelerator.cc
*
* Created on: 22 mars 2011
* Author: christian
*/
#include <iostream>
#include "Accelerator.h"
#include "exceptions.h"
using namespace std;
namespace vhc {
Accelerator::Accelerator():
elementCollec(0),
particleCollec(0),
allowLinear(false),
closed(false)
{};
Accelerator::~Accelerator() {
clear();
}
void Accelerator::initializeParticles() {
//rajouter les particules dans leurs elements respectifs
for (ParticleIterator i = particleCollec.begin(); i != particleCollec.end(); ++i) {
for (ElementIterator j = elementCollec.begin(); j != elementCollec.end(); ++j) {
if ((**j).contains(**i)) {
(**i).setElement(*j);
break;
}
}
//si une particule n'est pas contenue dans un element elle est supprimee
if ((**i).getElement() == NULL) {
delete *i;
i = particleCollec.erase(i);
--i;
//std::cout << "Particle hit wall. Removed from simulation" << std::endl;
}
}
}
Element& Accelerator::add(const Element& element) {
Element* e = element.clone();
elementCollec.push_back(e);
closed = false;
return *e;
}
Particle& Accelerator::add(const Particle& particle) {
Particle* p = particle.clone();
particleCollec.push_back(p);
closed = false;
return *p;
}
const Accelerator::ElementCollection& Accelerator::getElements() const { return elementCollec;}
const Accelerator::ParticleCollection& Accelerator::getParticles() const { return particleCollec;}
void Accelerator::close() {
for (ElementIterator current = elementCollec.begin(); current != elementCollec.end(); ++current) {
ElementIterator next = current;
++next;
if (next == elementCollec.end()) next = elementCollec.begin();
// est-ce que les elements se suivent (sont connectes)?
if (Vector3D::ae((*current)->getExitPosition(), (*next)->getEntryPosition())) {
(**current).setNext(*next);
(**next).setPrevious(*current);
//sinon est-ce qu'il s'agit du dernier element?
} else if (next == elementCollec.begin()) {
if (!allowLinear) throw UnsupportedOperationException("Cannot close accelerator. Linear Accelerators are not allowed.");
//sinon
} else throw UnsupportedOperationException("Cannot close accelerator. Two succeeding elements are not physically connected. (not close enough)");
}
initializeParticles();
closed = true;
}
void Accelerator::updateParticles() {
for (ParticleIterator i = particleCollec.begin(); i != particleCollec.end(); ++i) {
Particle& particle = **i;
if (particle.getElement()->isAfter(particle)) {
if (particle.getElement()->getNext() == NULL)
if (allowLinear) {
delete *i;
i = particleCollec.erase(i);
--i;
//cout << "Particle reached end of accelerator. Removed from simulation" << std::endl;
}
else throw Exception("Element in accelerator not connected to next.");
else particle.setElement(particle.getElement()->getNext());
} else if (particle.getElement()->isBefore(particle)) {
if (particle.getElement()->getPrevious() == NULL)
if (allowLinear) {
delete *i;
i = particleCollec.erase(i);
--i;
//cout << "Particle reached beginning of accelerator. Removed from simulation" << std::endl;
}
else throw Exception("Element in accelerator not connected to previous.");
else particle.setElement(particle.getElement()->getPrevious());
} else if (particle.getElement()->isBeside(particle)) {
//std::cout << "Particle hit wall. Removed from simulation" << std::endl;
delete *i;
i = particleCollec.erase(i);
--i;
}
}
}
void Accelerator::clear() {
for (ParticleIterator i = particleCollec.begin(); i != particleCollec.end(); ++i) {
delete *i;
*i = NULL;
}
particleCollec.clear();
for (ElementIterator i = elementCollec.begin(); i != elementCollec.end(); ++i) {
delete *i;
*i = NULL;
}
elementCollec.clear();
closed = false;
}
void Accelerator::step(double dt) {
if (!closed) close();
for (ParticleIterator i = particleCollec.begin(); i != particleCollec.end(); ++i) {
Particle& particle = **i;
particle.setForce(Vector3D::Null);
particle.applyMagneticForce(particle.getElement()->magneticFieldAt(particle.getPosition()), dt);
Vector3D a = particle.getForce() / (particle.getGamma() * particle.getMass());
particle.setVelocity(particle.getVelocity() + a * dt);
particle.translate(particle.getVelocity() * dt);
}
updateParticles();
}
void Accelerator::enableLinear(bool value) {
allowLinear = value;
}
/** Cf. Accelerator.h */
std::string Accelerator::toString() const {
std::stringstream s;
if (elementCollec.size() == 0) {
s << "This accelerator doesn't contain anything."<<"\n";
} else if (elementCollec.size()==1) {
s << "This accelerator is made of the following element :" << "\n";
s << elementCollec.front()->toString()<<"\n";
} else {
s << "This accelerator is made of the " << elementCollec.size() << " following elements :" << "\n";
for (ElementCollection::const_iterator i = elementCollec.begin(); i != elementCollec.end(); ++i) {
s << (*i)->toString() << "\n";
}
}
if (particleCollec.size() == 0) {
s << "This accelerator doesn't contain any particle." << "\n";
} else if (particleCollec.size() == 1) {
s << "This accelerator contains the following particle :" << "\n";
s << particleCollec.front()->toString() << "\n";
}else{
s << "This accelerator contains the " << particleCollec.size() << " following particles :"<<"\n";
for (list<Particle*>::const_iterator i = particleCollec.begin(); i != particleCollec.end(); ++i) {
s << (*i)->toString() << "\n";
}
}
return s.str();
}
} //vhc
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