endfieldmodel::EndFieldModel Class Reference

#include <EndFieldModel.h>

Inheritance diagram for endfieldmodel::EndFieldModel:

Public Member Functions
virtual	~EndFieldModel ()
virtual std::ostream &	print (std::ostream &out) const =0
virtual double	function (double x, int n) const =0
virtual double	getCentreLength () const =0
virtual double	getEndLength () const =0
virtual EndFieldModel *	clone () const =0
virtual void	setMaximumDerivative (size_t n)=0
virtual void	rescale (double scaleFactor)=0

Static Public Member Functions
static std::shared_ptr< EndFieldModel >	getEndFieldModel (std::string name)
static void	setEndFieldModel (std::string name, std::shared_ptr< EndFieldModel > efm)
static std::string	getName (std::shared_ptr< EndFieldModel > efm)

Static Private Attributes
static std::map< std::string, std::shared_ptr< EndFieldModel > >	efm_map

Detailed Description

Definition at line 38 of file EndFieldModel.h.

Constructor & Destructor Documentation

~EndFieldModel()

virtual endfieldmodel::EndFieldModel::~EndFieldModel ( )

inlinevirtual

Destructor

Definition at line 41 of file EndFieldModel.h.

Member Function Documentation

clone()

virtual EndFieldModel * endfieldmodel::EndFieldModel::clone ( ) const

pure virtual

Inheritable copy constructor - returns a deep copy of the EndFieldModel

Implemented in endfieldmodel::AsymmetricEnge, endfieldmodel::Enge, and endfieldmodel::Tanh.

Referenced by ScalingFFAMagnet::ScalingFFAMagnet(), and ScalingFFAMagnet::setupEndField().

function()

virtual double endfieldmodel::EndFieldModel::function ( double  x, int  n  ) const

pure virtual

Return the value of the function or its n^th derivative

Parameters

x	returns d^n f(x)/dx^n
n	the derivative

Implemented in endfieldmodel::AsymmetricEnge, endfieldmodel::Enge, and endfieldmodel::Tanh.

getCentreLength()

virtual double endfieldmodel::EndFieldModel::getCentreLength ( ) const

pure virtual

Return the nominal flat top length of the magnet

Implemented in endfieldmodel::AsymmetricEnge, endfieldmodel::Enge, and endfieldmodel::Tanh.

Referenced by ScalingFFAMagnet::setupEndField().

getEndFieldModel()

std::shared_ptr< EndFieldModel > endfieldmodel::EndFieldModel::getEndFieldModel ( std::string  name )

static

Look up the EndFieldModel that has a given name

Parameters

name	name of the EndFieldModel

Returns

shared_ptr to the appropriate EndFieldModel.

Exceptions

GeneralClassicException

if name is not recognised

Definition at line 63 of file EndFieldModel.cpp.

References efm_map, and name.

Referenced by ScalingFFAMagnet::setupEndField().

getEndLength()

virtual double endfieldmodel::EndFieldModel::getEndLength ( ) const

pure virtual

Return the nominal end field length of the magnet

Implemented in endfieldmodel::AsymmetricEnge, endfieldmodel::Enge, and endfieldmodel::Tanh.

Referenced by ScalingFFAMagnet::setupEndField().

getName()

std::string endfieldmodel::EndFieldModel::getName ( std::shared_ptr< EndFieldModel >  efm )

static

Get the name corresponding to a given EndFieldModel

Parameters

efm	EndFieldModel to lookup

Returns

name corresponding to the EndFieldModel. Note that this just does a dumb loop over the stored map values; so O(N).

Exceptions

GeneralClassicException

if efm is not recognised

Definition at line 77 of file EndFieldModel.cpp.

References efm_map.

print()

virtual std::ostream & endfieldmodel::EndFieldModel::print ( std::ostream &  out ) const

pure virtual

Stream a human readable description of the end field model to out

Implemented in endfieldmodel::AsymmetricEnge, endfieldmodel::Enge, and endfieldmodel::Tanh.

rescale()

virtual void endfieldmodel::EndFieldModel::rescale ( double  scaleFactor )

pure virtual

Rescale the end field lengths and offsets by a factor x0

If before rescaling the endfieldmodel returns f(x), after rescaling the endfieldmodel should return f(x*scaleFactor)

Implemented in endfieldmodel::AsymmetricEnge, endfieldmodel::Enge, and endfieldmodel::Tanh.

Referenced by ScalingFFAMagnet::setupEndField(), and OpalScalingFFAMagnet::update().

setEndFieldModel()

void endfieldmodel::EndFieldModel::setEndFieldModel ( std::string  name, std::shared_ptr< EndFieldModel >  efm  )

static

Add a value to the lookup table

Parameters

name	name of the EndFieldModel. If name already exists in the map, it is overwritten with the new value.
efm	shared_ptr to the EndFieldModel.

Definition at line 72 of file EndFieldModel.cpp.

References efm_map, and name.

Referenced by OpalScalingFFAMagnet::setupDefaultEndField(), OpalAsymmetricEnge::update(), and OpalEnge::update().

setMaximumDerivative()

virtual void endfieldmodel::EndFieldModel::setMaximumDerivative ( size_t  n )

pure virtual

Set the maximum derivative that will be required to be calculated

Some end field models e.g. Enge use recursion relations to calculate analytically derivatives at high order. By setting the maximum derivative these models can set up the tables of recursion coefficients at set-up time which makes the derivative lookup faster.

Implemented in endfieldmodel::AsymmetricEnge, endfieldmodel::Enge, and endfieldmodel::Tanh.

Referenced by OpalScalingFFAMagnet::update().

Member Data Documentation

efm_map

std::map< std::string, std::shared_ptr< EndFieldModel > > endfieldmodel::EndFieldModel::efm_map

staticprivate

Definition at line 108 of file EndFieldModel.h.

Referenced by getEndFieldModel(), getName(), and setEndFieldModel().

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The documentation for this class was generated from the following files:

• /Users/gsell/src/OPAL/src/src/Classic/AbsBeamline/EndFieldModel/EndFieldModel.h
• /Users/gsell/src/OPAL/src/src/Classic/AbsBeamline/EndFieldModel/EndFieldModel.cpp