OpenSim::StaticOptimization Class Reference

This class implements static optimization to compute Muscle Forces and activations. More...

#include <StaticOptimization.h>

Inheritance diagram for OpenSim::StaticOptimization:

Public Member Functions
	StaticOptimization (Model *aModel=0)
	StaticOptimization (const StaticOptimization &aObject)
	Copy constructor.
virtual Object *	copy () const
	Clone.
virtual	~StaticOptimization ()
	Destructor.
StaticOptimization &	operator= (const StaticOptimization &aStaticOptimization)
	Assign this object to the values of another.
void	setStorageCapacityIncrements (int aIncrement)
	Set the capacity increments of all storage instances.
Storage *	getActivationStorage ()
	Get the activation storage.
Storage *	getForceStorage ()
	Get the force storage.
bool	getUseModelForceSet ()
void	setUseModelForceSet (bool aUseModelActuatorSet)
virtual void	setModel (Model &aModel)
	Set the model for which the static optimization is to be computed.
void	setActivationExponent (const double aExponent)
double	getActivationExponent () const
void	setUseMusclePhysiology (const bool useIt)
bool	getUseMusclePhysiology () const
virtual int	begin (SimTK::State &s)
	This method is called at the beginning of an analysis so that any necessary initializations may be performed.
virtual int	step (const SimTK::State &s, int setNumber)
	This method is called to perform the analysis.
virtual int	end (SimTK::State &s)
	This method is called at the end of an analysis so that any necessary finalizations may be performed.
virtual int	printResults (const std::string &aBaseName, const std::string &aDir="", double aDT=-1.0, const std::string &aExtension=".sto")
	Print the results of the analysis.
Protected Member Functions
virtual int	record (const SimTK::State &s)
	Record the results.
Protected Attributes
PropertyBool	_useModelForceSetProp
	Use force set from model.
bool &	_useModelForceSet
PropertyDbl	_activationExponentProp
double &	_activationExponent
PropertyBool	_useMusclePhysiologyProp
bool &	_useMusclePhysiology
Storage *	_activationStorage
Storage *	_forceStorage
GCVSplineSet	_statesSplineSet
Array< int >	_accelerationIndices
SimTK::Vector	_parameters
bool	_ownsForceSet
ForceSet *	_forceSet
double	_optimizerDX
std::string	_optimizerAlgorithm
int	_printLevel
double	_convergenceCriterion
int	_maxIterations
Model *	_modelWorkingCopy

Detailed Description

This class implements static optimization to compute Muscle Forces and activations.

Author:: Jeff Reinbolt

Constructor & Destructor Documentation

StaticOptimization::StaticOptimization ( Model * aModel = 0 )

StaticOptimization::StaticOptimization ( const StaticOptimization & aObject )

Copy constructor.

StaticOptimization::~StaticOptimization ( ) [virtual]

Destructor.

Member Function Documentation

int StaticOptimization::begin ( SimTK::State & s ) [virtual]

This method is called at the beginning of an analysis so that any necessary initializations may be performed.

This method is meant to be called at the begining of an integration

Parameters:

s

Current state .

Returns:: -1 on error, 0 otherwise.

Reimplemented from OpenSim::Analysis.

Object * StaticOptimization::copy ( ) const [virtual]

Clone.

Reimplemented from OpenSim::Analysis.

int StaticOptimization::end ( SimTK::State & s ) [virtual]

This method is called at the end of an analysis so that any necessary finalizations may be performed.

Parameters:

s

Current state

Returns:: -1 on error, 0 otherwise.

Reimplemented from OpenSim::Analysis.

double OpenSim::StaticOptimization::getActivationExponent ( ) const [inline]

Storage * StaticOptimization::getActivationStorage ( )

Get the activation storage.

Returns:: Activation storage.

Storage * StaticOptimization::getForceStorage ( )

Get the force storage.

Returns:: Force storage.

bool OpenSim::StaticOptimization::getUseModelForceSet ( ) [inline]

bool OpenSim::StaticOptimization::getUseMusclePhysiology ( ) const [inline]

StaticOptimization & StaticOptimization::operator= ( const StaticOptimization & aStaticOptimization )

Assign this object to the values of another.

Returns:: Reference to this object.

Reimplemented from OpenSim::Analysis.

virtual int OpenSim::StaticOptimization::printResults	(	const std::string &	aBaseName,
		const std::string &	aDir = `""`,
		double	aDT = `-1.0`,
		const std::string &	aExtension = `".sto"`
	)			`[virtual]`

Print the results of the analysis.

Parameters:

	aFileName	File to which to print the data.
	aDT	Time interval between results (linear interpolation is used). If not included as an argument or negative, all time steps are printed without interpolation.

Returns:: -1 on error, 0 otherwise.

Reimplemented from OpenSim::Analysis.

int StaticOptimization::record ( const SimTK::State & s ) [protected, virtual]

Record the results.

void OpenSim::StaticOptimization::setActivationExponent ( const double aExponent ) [inline]

void StaticOptimization::setModel ( Model & aModel ) [virtual]

Set the model for which the static optimization is to be computed.

Parameters:

aModel

Model pointer

Reimplemented from OpenSim::Analysis.

void StaticOptimization::setStorageCapacityIncrements ( int aIncrement )

Set the capacity increments of all storage instances.

Parameters:

aIncrement

Increment by which storage capacities will be increased when storage capacities run out.

void OpenSim::StaticOptimization::setUseModelForceSet ( bool aUseModelActuatorSet ) [inline]

void OpenSim::StaticOptimization::setUseMusclePhysiology ( const bool useIt ) [inline]

int StaticOptimization::step	(	const SimTK::State &	s,
		int	stepNumber
	)			`[virtual]`

This method is called to perform the analysis.

It can be called during the execution of a forward integrations or after the integration by feeding it the necessary data.

This method should be overriden in derived classes. It is included here so that the derived class will not have to implement it if it is not necessary.

Parameters:

s

Current state .