AbstractContractionModel Class Reference

#include <AbstractContractionModel.hpp>

Inherited by AbstractAlgebraicContractionModel, and AbstractOdeBasedContractionModel.

List of all members.

Public Member Functions
	AbstractContractionModel ()
virtual	~AbstractContractionModel ()
virtual bool	IsStretchDependent ()=0
virtual bool	IsStretchRateDependent ()=0
virtual void	SetInputParameters (ContractionModelInputParameters &rInputParameters)=0
virtual void	SetStretchAndStretchRate (double stretch, double stretchRate)=0
void	SetStretch (double stretch)
virtual void	RunDoNotUpdate (double startTime, double endTime, double timeStep)=0
virtual void	RunAndUpdate (double startTime, double endTime, double timeStep)=0
virtual void	UpdateStateVariables ()=0
virtual double	GetActiveTension ()=0
virtual double	GetNextActiveTension ()=0

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Detailed Description

General interface for contraction models (models on the cell level determining the active tension (actually a stress) induced in a cell in response to electrical activity or mechanical deformation).

Definition at line 60 of file AbstractContractionModel.hpp.

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Constructor & Destructor Documentation

AbstractContractionModel::AbstractContractionModel

(

)

[inline]

Constructor does nothing.

Definition at line 66 of file AbstractContractionModel.hpp.

Referenced by AbstractAlgebraicContractionModel::AbstractAlgebraicContractionModel().

virtual AbstractContractionModel::~AbstractContractionModel

(

)

[inline, virtual]

Abstract destructor does nothing.

Definition at line 73 of file AbstractContractionModel.hpp.

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Member Function Documentation

virtual double AbstractContractionModel::GetActiveTension

(

)

[pure virtual]

Returns:

the current active tension (note, actually a stress). (Pure, to be implemented in the concrete class).

DO NOT call inbetween RunDoNotUpdate() and UpdateStateVariables() as the old state variables but the next time would then be used in calculating Ta. Instead, use GetNextActiveTension(), or call UpdateStateVariables() and then this.

Implemented in ConstantActiveTension, FakeBathContractionModel, Kerchoffs2003ContractionModel, Nash2004ContractionModel, NhsContractionModel, and NonPhysiologicalContractionModel.

Referenced by ExplicitCardiacMechanicsSolver< ELASTICITY_SOLVER, DIM >::GetActiveTensionAndTensionDerivs().

virtual double AbstractContractionModel::GetNextActiveTension

(

)

[pure virtual]

Returns:

the current active tension (note, actually a stress), using the current temporary state variables (ie those obtained after RunDoNotUpdate has been called).

Implemented in AbstractAlgebraicContractionModel, Kerchoffs2003ContractionModel, Nash2004ContractionModel, NhsContractionModel, and NhsModelWithBackwardSolver.

Referenced by ImplicitCardiacMechanicsSolver< ELASTICITY_SOLVER, DIM >::GetActiveTensionAndTensionDerivs().

virtual bool AbstractContractionModel::IsStretchDependent

(

)

[pure virtual]

Returns:

whether the model depend on the stretch. (Pure, to be implemented in the concrete class).

Implemented in ConstantActiveTension, FakeBathContractionModel, Kerchoffs2003ContractionModel, Nash2004ContractionModel, NhsContractionModel, and NonPhysiologicalContractionModel.

virtual bool AbstractContractionModel::IsStretchRateDependent

(

)

[pure virtual]

Returns:

whether the model depend on the stretch-rate. (Pure, to be implemented in the concrete class).

Implemented in ConstantActiveTension, FakeBathContractionModel, Kerchoffs2003ContractionModel, Nash2004ContractionModel, NhsContractionModel, and NonPhysiologicalContractionModel.

Referenced by SetStretch().

virtual void AbstractContractionModel::RunAndUpdate	(	double	startTime,
		double	endTime,
		double	timeStep
	)			[pure virtual]

Run the contraction (ie if an ODE system) between the given times, and update the state variables. For use in the explicit electromechanics algorithm

Parameters:

	startTime	start time
	endTime	end time
	timeStep	timestep to use in ODE solving.

Implemented in AbstractAlgebraicContractionModel, AbstractOdeBasedContractionModel, and NhsModelWithBackwardSolver.

Referenced by ExplicitCardiacMechanicsSolver< ELASTICITY_SOLVER, DIM >::Solve().

virtual void AbstractContractionModel::RunDoNotUpdate	(	double	startTime,
		double	endTime,
		double	timeStep
	)			[pure virtual]

Run the contraction (ie if an ODE system) between the given times. This should NOT update any state variables. Call UpdateStateVariables() afterwards to update. For use in the implicit electromechanics algorithm

Parameters:

	startTime	start time
	endTime	end time
	timeStep	timestep to use in ODE solving.

Implemented in AbstractAlgebraicContractionModel, AbstractOdeBasedContractionModel, and NhsModelWithBackwardSolver.

Referenced by ImplicitCardiacMechanicsSolver< ELASTICITY_SOLVER, DIM >::GetActiveTensionAndTensionDerivs().

virtual void AbstractContractionModel::SetInputParameters

(

ContractionModelInputParameters &

rInputParameters

)

[pure virtual]

Set any input parameters (excl stretch and stretch rate). (Pure, to be implemented in the concrete class).

Parameters:

rInputParameters

contains various parameters: voltage, intracellular calcium concentration

Implemented in ConstantActiveTension, FakeBathContractionModel, Kerchoffs2003ContractionModel, Nash2004ContractionModel, NhsContractionModel, and NonPhysiologicalContractionModel.

void AbstractContractionModel::SetStretch

(

double

stretch

)

[inline]

Safe setting of stretch-only, for stretch-rate independent models ONLY.

Parameters:

stretch

Stretch in fibre direction

Definition at line 105 of file AbstractContractionModel.hpp.

References IsStretchRateDependent(), and SetStretchAndStretchRate().

virtual void AbstractContractionModel::SetStretchAndStretchRate	(	double	stretch,
		double	stretchRate
	)			[pure virtual]

Set the stretch and stretch rate. (Pure, to be implemented in the concrete class).

Parameters:

	stretch	fibre stretch (dimensionless)
	stretchRate	fibre stretch rate (1/ms)

Implemented in ConstantActiveTension, FakeBathContractionModel, Kerchoffs2003ContractionModel, Nash2004ContractionModel, NhsContractionModel, and NonPhysiologicalContractionModel.

Referenced by ImplicitCardiacMechanicsSolver< ELASTICITY_SOLVER, DIM >::GetActiveTensionAndTensionDerivs(), SetStretch(), and ExplicitCardiacMechanicsSolver< ELASTICITY_SOLVER, DIM >::Solve().

virtual void AbstractContractionModel::UpdateStateVariables

(

)

[pure virtual]

After calling RunDoNotUpdate, which ran but should not have updated the state variables, the state variables are updated if this is called.

Implemented in AbstractAlgebraicContractionModel, and AbstractOdeBasedContractionModel.

Referenced by ImplicitCardiacMechanicsSolver< ELASTICITY_SOLVER, DIM >::Solve().

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

• heart/src/odes/contractionmodels/AbstractContractionModel.hpp