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/*
* FODO.cc
*
* Created on: Mar 29, 2011
* Author: jakob
*/
#include "FODO.h"
#include "CompositeElement.h"
#include "StraightElement.h"
#include "Quadrupole.h"
#include "Vector3D.h"
#include "exception.h"
namespace vhc {
FODO::FODO(const Vector3D& entry, const Vector3D& exit, double sectionRadius, double straightLength, double focalisingCoefficient, Element* next):
CompositeElement(entry, exit, sectionRadius, next),
focalisingQuadrupole(NULL),
defocalisingQuadrupole(NULL),
straightElement1(NULL),
straightElement2(NULL) {
double L = straightLength;
double l = getDiagonal().norm() / 2 - L;
if (l < 0) throw IllegalArgumentException("Length of straight elements must be less than half of FODO length.");
Vector3D d = getDiagonal().unit();
focalisingQuadrupole = new Quadrupole(entry, entry + d * l, sectionRadius, focalisingCoefficient);
elements.push_back(focalisingQuadrupole);
straightElement1 = new StraightElement(focalisingQuadrupole->getExitPosition(), focalisingQuadrupole->getExitPosition() + d * L, sectionRadius);
elements.push_back(straightElement1);
defocalisingQuadrupole = new Quadrupole(straightElement1->getExitPosition(), straightElement1->getExitPosition() + d * l, sectionRadius, -focalisingCoefficient);
elements.push_back(defocalisingQuadrupole);
straightElement2 = new StraightElement(defocalisingQuadrupole->getExitPosition(), defocalisingQuadrupole->getExitPosition() + d * L, sectionRadius);
elements.push_back(straightElement2);
//connection des elements
for (int i(0); i < elements.size() - 1; i++) {
elements[i]->setNext(elements[i+1]);
}
}
FODO::~FODO() {
for (int i(0); i < elements.size(); i++) {
delete elements[i];
elements[i] = NULL;
}
}
}
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