Detailed Description

A harmonic bond potential with zero rest length.

See also: Parameter file format; Bond Interaction Class Interface

Definition at line 31 of file HarmonicL0Bond.h.

#include <HarmonicL0Bond.h>

Inheritance diagram for Simp::HarmonicL0Bond:

Public Member Functions
	HarmonicL0Bond ()
	Constructor. More...

	HarmonicL0Bond (const HarmonicL0Bond &other)
	Copy constructor. More...

HarmonicL0Bond &	operator= (const HarmonicL0Bond &other)
	Assignment. More...

void	setNBondType (int nBondType)
	Set the number of bond types. More...

void	readParameters (std::istream &in)
	Read bond interaction parameters from input stream. More...

virtual void	loadParameters (Serializable::IArchive &ar)
	Load internal state from an archive. More...

virtual void	save (Serializable::OArchive &ar)
	Save internal state to an archive. More...

double	energy (double rSq, int type) const
	Returns potential energy for one bond. More...

double	forceOverR (double rSq, int type) const
	Returns force/distance for one bond, for use in MD. More...

double	randomBondLength (Random *random, double beta, int type) const
	Return bond length chosen from equilibrium distribution. More...

void	set (std::string name, int type, double value)
	Modify a parameter, identified by a string. More...

double	get (std::string name, int type) const
	Get a parameter value, identified by a string. More...

double	kappa (int type) const
	Returns bond spring constant. More...

Public Member Functions inherited from Util::ParamComposite
	ParamComposite ()
	Constructor. More...

	ParamComposite (const ParamComposite &other)
	Copy constructor. More...

	ParamComposite (int capacity)
	Constructor. More...

virtual	~ParamComposite ()
	Virtual destructor. More...

void	resetParam ()
	Resets ParamComposite to its empty state. More...

virtual void	readParam (std::istream &in)
	Read the parameter file block. More...

virtual void	readParamOptional (std::istream &in)
	Read optional parameter file block. More...

virtual void	writeParam (std::ostream &out)
	Write all parameters to an output stream. More...

virtual void	load (Serializable::IArchive &ar)
	Load all parameters from an input archive. More...

virtual void	loadOptional (Serializable::IArchive &ar)
	Load an optional ParamComposite. More...

void	saveOptional (Serializable::OArchive &ar)
	Saves isActive flag, and then calls save() iff isActive is true. More...

void	readParamComposite (std::istream &in, ParamComposite &child, bool next=true)
	Add and read a required child ParamComposite. More...

void	readParamCompositeOptional (std::istream &in, ParamComposite &child, bool next=true)
	Add and attempt to read an optional child ParamComposite. More...

template<typename Type >
ScalarParam< Type > &	read (std::istream &in, const char *label, Type &value)
	Add and read a new required ScalarParam < Type > object. More...

template<typename Type >
ScalarParam< Type > &	readOptional (std::istream &in, const char *label, Type &value)
	Add and read a new optional ScalarParam < Type > object. More...

template<typename Type >
CArrayParam< Type > &	readCArray (std::istream &in, const char label, Type value, int n)
	Add and read a required C array parameter. More...

template<typename Type >
CArrayParam< Type > &	readOptionalCArray (std::istream &in, const char label, Type value, int n)
	Add and read an optional C array parameter. More...

template<typename Type >
DArrayParam< Type > &	readDArray (std::istream &in, const char *label, DArray< Type > &array, int n)
	Add and read a required DArray < Type > parameter. More...

template<typename Type >
DArrayParam< Type > &	readOptionalDArray (std::istream &in, const char *label, DArray< Type > &array, int n)
	Add and read an optional DArray < Type > parameter. More...

template<typename Type , int N>
FArrayParam< Type, N > &	readFArray (std::istream &in, const char *label, FArray< Type, N > &array)
	Add and read a required FArray < Type, N > array parameter. More...

template<typename Type , int N>
FArrayParam< Type, N > &	readOptionalFArray (std::istream &in, const char *label, FArray< Type, N > &array)
	Add and read an optional FArray < Type, N > array parameter. More...

template<typename Type >
CArray2DParam< Type > &	readCArray2D (std::istream &in, const char label, Type value, int m, int n, int np)
	Add and read a required CArray2DParam < Type > 2D C-array. More...

template<typename Type >
CArray2DParam< Type > &	readOptionalCArray2D (std::istream &in, const char label, Type value, int m, int n, int np)
	Add and read an optional CArray2DParam < Type > 2D C-array parameter. More...

template<typename Type >
DMatrixParam< Type > &	readDMatrix (std::istream &in, const char *label, DMatrix< Type > &matrix, int m, int n)
	Add and read a required DMatrix < Type > matrix parameter. More...

template<typename Type >
DMatrixParam< Type > &	readOptionalDMatrix (std::istream &in, const char *label, DMatrix< Type > &matrix, int m, int n)
	Add and read an optional DMatrix < Type > matrix parameter. More...

template<typename Type >
DSymmMatrixParam< Type > &	readDSymmMatrix (std::istream &in, const char *label, DMatrix< Type > &matrix, int n)
	Add and read a required symmetrix DMatrix. More...

template<typename Type >
DSymmMatrixParam< Type > &	readOptionalDSymmMatrix (std::istream &in, const char *label, DMatrix< Type > &matrix, int n)
	Add and read an optional DMatrix matrix parameter. More...

Begin &	readBegin (std::istream &in, const char *label, bool isRequired=true)
	Add and read a class label and opening bracket. More...

End &	readEnd (std::istream &in)
	Add and read the closing bracket. More...

Blank &	readBlank (std::istream &in)
	Add and read a new Blank object, representing a blank line. More...

void	loadParamComposite (Serializable::IArchive &ar, ParamComposite &child, bool next=true)
	Add and load a required child ParamComposite. More...

void	loadParamCompositeOptional (Serializable::IArchive &ar, ParamComposite &child, bool next=true)
	Add and load an optional child ParamComposite if isActive. More...

template<typename Type >
ScalarParam< Type > &	loadParameter (Serializable::IArchive &ar, const char *label, Type &value, bool isRequired)
	Add and load a new ScalarParam < Type > object. More...

template<typename Type >
ScalarParam< Type > &	loadParameter (Serializable::IArchive &ar, const char *label, Type &value)
	Add and load new required ScalarParam < Type > object. More...

template<typename Type >
CArrayParam< Type > &	loadCArray (Serializable::IArchive &ar, const char label, Type value, int n, bool isRequired)
	Add a C array parameter and load its elements. More...

template<typename Type >
CArrayParam< Type > &	loadCArray (Serializable::IArchive &ar, const char label, Type value, int n)
	Add and load a required CArrayParam< Type > array parameter. More...

template<typename Type >
DArrayParam< Type > &	loadDArray (Serializable::IArchive &ar, const char *label, DArray< Type > &array, int n, bool isRequired)
	Add an load a DArray < Type > array parameter. More...

template<typename Type >
DArrayParam< Type > &	loadDArray (Serializable::IArchive &ar, const char *label, DArray< Type > &array, int n)
	Add and load a required DArray< Type > array parameter. More...

template<typename Type , int N>
FArrayParam< Type, N > &	loadFArray (Serializable::IArchive &ar, const char *label, FArray< Type, N > &array, bool isRequired)
	Add and load an FArray < Type, N > fixed-size array parameter. More...

template<typename Type , int N>
FArrayParam< Type, N > &	loadFArray (Serializable::IArchive &ar, const char *label, FArray< Type, N > &array)
	Add and load a required FArray < Type > array parameter. More...

template<typename Type >
CArray2DParam< Type > &	loadCArray2D (Serializable::IArchive &ar, const char label, Type value, int m, int n, int np, bool isRequired)
	Add and load a CArray2DParam < Type > C 2D array parameter. More...

template<typename Type >
CArray2DParam< Type > &	loadCArray2D (Serializable::IArchive &ar, const char label, Type value, int m, int n, int np)
	Add and load a required < Type > matrix parameter. More...

template<typename Type >
DMatrixParam< Type > &	loadDMatrix (Serializable::IArchive &ar, const char *label, DMatrix< Type > &matrix, int m, int n, bool isRequired)
	Add and load a DMatrixParam < Type > matrix parameter. More...

template<typename Type >
DMatrixParam< Type > &	loadDMatrix (Serializable::IArchive &ar, const char *label, DMatrix< Type > &matrix, int m, int n)
	Add and load a required DMatrixParam < Type > matrix parameter. More...

template<typename Type >
DSymmMatrixParam< Type > &	loadDSymmMatrix (Serializable::IArchive &ar, const char *label, DMatrix< Type > &matrix, int n, bool isRequired)
	Add and load a symmetric DSymmMatrixParam < Type > matrix parameter. More...

template<typename Type >
DSymmMatrixParam< Type > &	loadDSymmMatrix (Serializable::IArchive &ar, const char *label, DMatrix< Type > &matrix, int n)
	Add and load a required DSymmMatrixParam < Type > matrix parameter. More...

void	addParamComposite (ParamComposite &child, bool next=true)
	Add a child ParamComposite object to the format array. More...

Begin &	addBegin (const char *label)
	Add a Begin object representing a class name and bracket. More...

End &	addEnd ()
	Add a closing bracket. More...

Blank &	addBlank ()
	Create and add a new Blank object, representing a blank line. More...

std::string	className () const
	Get class name string. More...

bool	isRequired () const
	Is this ParamComposite required in the input file? More...

bool	isActive () const
	Is this parameter active? More...

Public Member Functions inherited from Util::ParamComponent
virtual	~ParamComponent ()
	Destructor. More...

void	setIndent (const ParamComponent &parent, bool next=true)
	Set indent level. More...

std::string	indent () const
	Return indent string for this object (string of spaces). More...

template<class Archive >
void	serialize (Archive &ar, const unsigned int version)
	Serialize this ParamComponent as a string. More...

Public Member Functions inherited from Util::Serializable
virtual	~Serializable ()
	Destructor. More...

Public Member Functions inherited from Util::MpiFileIo
	MpiFileIo ()
	Constructor. More...

	MpiFileIo (const MpiFileIo &other)
	Copy constructor. More...

bool	isIoProcessor () const
	Can this processor do file I/O ? More...

void	setIoCommunicator (MPI::Intracomm &communicator)
	Set the communicator. More...

void	clearCommunicator ()
	Clear (nullify) the communicator. More...

bool	hasIoCommunicator () const
	Does this object have an associated MPI communicator? More...

MPI::Intracomm &	ioCommunicator () const
	Get the MPI communicator by reference. More...

Additional Inherited Members
Public Types inherited from Util::Serializable
typedef BinaryFileOArchive	OArchive
	Type of output archive used by save method. More...

typedef BinaryFileIArchive	IArchive
	Type of input archive used by load method. More...

Static Public Member Functions inherited from Util::ParamComponent
static void	initStatic ()
	Initialize static echo member to false. More...

static void	setEcho (bool echo=true)
	Enable or disable echoing for all subclasses of ParamComponent. More...

static bool	echo ()
	Get echo parameter. More...

Protected Member Functions inherited from Util::ParamComposite
void	setClassName (const char *className)
	Set class name string. More...

void	setIsRequired (bool isRequired)
	Set or unset the isActive flag. More...

void	setIsActive (bool isActive)
	Set or unset the isActive flag. More...

void	setParent (ParamComponent &param, bool next=true)
	Set this to the parent of a child component. More...

void	addComponent (ParamComponent &param, bool isLeaf=true)
	Add a new ParamComponent object to the format array. More...

template<typename Type >
ScalarParam< Type > &	add (std::istream &in, const char *label, Type &value, bool isRequired=true)
	Add a new required ScalarParam < Type > object. More...

template<typename Type >
CArrayParam< Type > &	addCArray (std::istream &in, const char label, Type value, int n, bool isRequired=true)
	Add (but do not read) a required C array parameter. More...

template<typename Type >
DArrayParam< Type > &	addDArray (std::istream &in, const char *label, DArray< Type > &array, int n, bool isRequired=true)
	Add (but do not read) a DArray < Type > parameter. More...

template<typename Type , int N>
FArrayParam< Type, N > &	addFArray (std::istream &in, const char *label, FArray< Type, N > &array, bool isRequired=true)
	Add (but do not read) a FArray < Type, N > array parameter. More...

template<typename Type >
CArray2DParam< Type > &	addCArray2D (std::istream &in, const char label, Type value, int m, int n, int np, bool isRequired=true)
	Add (but do not read) a CArray2DParam < Type > 2D C-array. More...

template<typename Type >
DMatrixParam< Type > &	addDMatrix (std::istream &in, const char *label, DMatrix< Type > &matrix, int m, int n, bool isRequired=true)
	Add and read a required DMatrix < Type > matrix parameter. More...

Protected Member Functions inherited from Util::ParamComponent
	ParamComponent ()
	Constructor. More...

	ParamComponent (const ParamComponent &other)
	Copy constructor. More...

Constructor & Destructor Documentation

Simp::HarmonicL0Bond::HarmonicL0Bond ( )

Constructor.

Definition at line 20 of file HarmonicL0Bond.cpp.

References Util::ParamComposite::setClassName().

Simp::HarmonicL0Bond::HarmonicL0Bond ( const HarmonicL0Bond & other )

Copy constructor.

Definition at line 32 of file HarmonicL0Bond.cpp.

Member Function Documentation

HarmonicL0Bond & Simp::HarmonicL0Bond::operator= ( const HarmonicL0Bond & other )

Assignment.

Definition at line 43 of file HarmonicL0Bond.cpp.

void Simp::HarmonicL0Bond::setNBondType ( int nBondType )

Set the number of bond types.

Parameters

nBondType number of bond types

Definition at line 55 of file HarmonicL0Bond.cpp.

References UTIL_THROW.

void Simp::HarmonicL0Bond::readParameters ( std::istream & in )

virtual

Read bond interaction parameters from input stream.

Format: kappa CArray<double>

Precondition: nBondType must be set, by calling setNBondType().

Parameters

in	input stream

Reimplemented from Util::ParamComposite.

Definition at line 66 of file HarmonicL0Bond.cpp.

References UTIL_CHECK.

void Simp::HarmonicL0Bond::loadParameters ( Serializable::IArchive & ar )

virtual

Load internal state from an archive.

Parameters

ar	input/loading archive

Reimplemented from Util::ParamComposite.

Definition at line 75 of file HarmonicL0Bond.cpp.

References UTIL_CHECK.

void Simp::HarmonicL0Bond::save ( Serializable::OArchive & ar )

virtual

Save internal state to an archive.

Parameters

ar	output/saving archive

Reimplemented from Util::ParamComposite.

Definition at line 84 of file HarmonicL0Bond.cpp.

References Util::BinaryFileOArchive::pack(), and UTIL_CHECK.

double Simp::HarmonicL0Bond::energy	(	double	rSq,
		int	type
	)		const

inline

Returns potential energy for one bond.

Parameters

rSq	square of distance between bonded particles.
type	type of bond.

Definition at line 167 of file HarmonicL0Bond.h.

double Simp::HarmonicL0Bond::forceOverR	(	double	rSq,
		int	type
	)		const

inline

Returns force/distance for one bond, for use in MD.

A positive return value represents a repulsive radial force.

Parameters

rSq	square of distance between bonded particles.
type	type of bond.

Returns: scalar repulsive force divided by distance.

Definition at line 174 of file HarmonicL0Bond.h.

double Simp::HarmonicL0Bond::randomBondLength	(	Random *	random,
		double	beta,
		int	type
	)		const

Return bond length chosen from equilibrium distribution.

This function returns a bond length chosen from the Boltzmann distribution of lengths for bonds of random orientation. The distribution P(l) of values of the length l is proportional to l*l*exp[-beta*phi(l) ], where phi(l) is the bond energy.

Parameters

random	pointer to random number generator object.
beta	inverse temperature
type	bond type

Returns: random bond length chosen from equilibrium distribution.

Definition at line 96 of file HarmonicL0Bond.cpp.

References Util::Random::gaussian().

void Simp::HarmonicL0Bond::set	(	std::string	name,
		int	type,
		double	value
	)

Modify a parameter, identified by a string.

Parameters

name	parameter name
type	bond type index
value	new value of parameter

Definition at line 109 of file HarmonicL0Bond.cpp.

References UTIL_THROW.

double Simp::HarmonicL0Bond::get	(	std::string	name,
		int	type
	)		const

Get a parameter value, identified by a string.

Parameters

name	parameter name
type	bond type index

Definition at line 121 of file HarmonicL0Bond.cpp.

References UTIL_THROW.

double Simp::HarmonicL0Bond::kappa ( int type ) const

inline

Returns bond spring constant.

Definition at line 157 of file HarmonicL0Bond.h.

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

Detailed Description

Public Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation