AsymmetricEnge.h

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/*
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#ifndef ENDFIELDMODEL_ASYMMETRICENGE_H_
#define ENDFIELDMODEL_ASYMMETRICENGE_H_
 
#include <iostream>
#include <vector>
#include <memory>
 
#include "AbsBeamline/EndFieldModel/EndFieldModel.h"
#include "AbsBeamline/EndFieldModel/Enge.h"
 
namespace endfieldmodel {
 
class AsymmetricEnge : public EndFieldModel {
    public:
        AsymmetricEnge();
        AsymmetricEnge(const std::vector<double> aStart,
                       double x0Start,
                       double lambdaStart, 
                       const std::vector<double> aEnd,
                       double x0End,
                       double lambdaEnd);
 
        inline AsymmetricEnge* clone() const;
 
        std::ostream& print(std::ostream& out) const;
 
        inline double function(double x, int n) const;
 
        inline double getCentreLength() const;
 
        inline double getEndLength() const;
 
        inline std::shared_ptr<Enge> getEngeStart() const;
 
        inline void setEngeStart(std::shared_ptr<Enge> eStart);
 
        inline std::shared_ptr<Enge> getEngeEnd() const;
 
        inline void setEngeEnd(std::shared_ptr<Enge> eEnd);
 
        inline double getX0Start() const;
 
        inline void setX0Start(double x0);
 
        inline double getX0End() const;
 
        inline void setX0End(double x0);
 
        inline void setMaximumDerivative(size_t n);
 
        void rescale(double scaleFactor);
 
    private:
        AsymmetricEnge(const AsymmetricEnge& rhs);
        std::shared_ptr<Enge> engeStart_m;
        std::shared_ptr<Enge> engeEnd_m;
};
 
std::shared_ptr<Enge> AsymmetricEnge::getEngeStart() const {
    return engeStart_m;
}
std::shared_ptr<Enge> AsymmetricEnge::getEngeEnd() const {
    return engeEnd_m;
}
void AsymmetricEnge::setEngeStart(std::shared_ptr<Enge> enge) {
    engeStart_m = enge;
}
void AsymmetricEnge::setEngeEnd(std::shared_ptr<Enge> enge) {
    engeEnd_m = enge;
}
 
double AsymmetricEnge::getX0Start() const {
    return engeStart_m->getX0();
}
 
double AsymmetricEnge::getX0End() const {
    return engeEnd_m->getX0();
}
 
void AsymmetricEnge::setX0Start(double x0) {
    engeStart_m->setX0(x0);
}
 
void AsymmetricEnge::setX0End(double x0) {
    engeEnd_m->setX0(x0);
}
 
double AsymmetricEnge::function(double x, int n) const {
    // f(x) = E(x-x0) + E(-x-x0) - 1
    // f^{(2n)} = E^{(2n)}(x-x0) + E^{(2n)}(-x-x0)
    // f^{(2n+1)} = E^{(2n)}(x-x0) - E^{(2n)}(-x-x0)
    if (n == 0) {
        return engeStart_m->getEnge(x-engeStart_m->getX0(), n)+
               engeEnd_m->getEnge(-x-engeEnd_m->getX0(), n)-1;
    } else if (n%2) {
        return engeStart_m->getEnge(x-engeStart_m->getX0(), n)-
               engeEnd_m->getEnge(-x-engeEnd_m->getX0(), n);
    } else {
        return engeStart_m->getEnge(x-engeStart_m->getX0(), n)+
               engeEnd_m->getEnge(-x-engeEnd_m->getX0(), n);
    }
}
 
AsymmetricEnge* AsymmetricEnge::clone() const {
    return new AsymmetricEnge(*this);
}
 
void AsymmetricEnge::setMaximumDerivative(size_t n) {
    Enge::setEngeDiffIndices(n);
}
 
double AsymmetricEnge::getCentreLength() const {
    return (engeStart_m->getCentreLength()+engeEnd_m->getCentreLength())/2;
}
 
double AsymmetricEnge::getEndLength() const {
    return (engeStart_m->getEndLength()+engeEnd_m->getEndLength())/2;
}
}
 
#endif