This is the base Implementation class for all Measures whose value type is known. More...

Inheritance diagram for SimTK::Measure_< T >::Implementation:

Public Member Functions
const T &	getValue (const State &s, int derivOrder) const

void	setDefaultValue (const T &defaultValue)
	Set a new default value for this Measure. More...

const T &	getDefaultValue () const
	Return a reference to the value that this Measure will use to initialize its value-level state resource (state variable or cache entry) during the next call to realizeTopology(). More...

void	setIsPresumedValidAtDependsOnStage (bool presume)

bool	getIsPresumedValidAtDependsOnStage () const

Protected Member Functions
	Implementation (const T &defaultValue, int numCacheEntries=1)

	Implementation (int numCacheEntries=1)
	Argument numCacheEntries should be one greater than the number of derivatives; that is, there is room for the value ("0th" derivative) also. More...

	Implementation (const Implementation &source)
	Copy constructor copies the number of cache entries from the source, but not the cache indices themselves as those must be allocated uniquely for the copy. More...

int	size () const
	Return the number of elements in the data type of this Measure; for Vector measures this is determined by the size of the default value. More...

int	getNumCacheEntries () const
	Return the number of cache entries allocated for the value and derivatives of this Measure. More...

const T &	getCacheEntry (const State &s, int derivOrder) const
	Get a const reference to the value stored in one of this Measure's cache entries, indexed by the derivative order (with the value treated as the 0th derivative). More...

T &	updCacheEntry (const State &s, int derivOrder) const
	Get a writable reference to the value stored in one of this Measure's cache entries, indexed by the derivative order (with the value treated as the 0th derivative). More...

bool	isCacheValueRealized (const State &s, int derivOrder) const
	Determine whether a particular one of this Measure's cache entries has already been realized since the given state was modified. More...

void	markCacheValueRealized (const State &s, int derivOrder) const
	Mark one of this Measure's cache entries up to date; call this after you have calculated a value or derivative and stored it in the corresponding cache entry. More...

void	markCacheValueNotRealized (const State &s, int derivOrder) const
	Invalidate one of this Measure's cache entries. More...

virtual void	realizeMeasureTopologyVirtual (State &) const
	Concrete measures can override this to allocate Topology-stage resources. More...

virtual void	calcCachedValueVirtual (const State &, int derivOrder, T &value) const
	Concrete measures must override this if the state cache is used for precalculated values or derivatives. More...

virtual const T &	getUncachedValueVirtual (const State &, int derivOrder) const
	This is only called when derivOrder >= the number of cache entries we have, but still <= the number of derivatives the Measure says it can deliver. More...

const T &	getValueZero () const
	Return a reference to a zero of the same type and size as this Measure's value. More...

Protected Member Functions inherited from SimTK::AbstractMeasure::Implementation
	Implementation ()
	This default constructor is for use by concrete measure implementation classes. More...

	Implementation (const Implementation &src)
	Base class copy constructor removes the Subsystem and sets the reference count to zero. More...

Implementation &	operator= (const Implementation &src)
	Base class copy assignment operator removes the Subsystem, and sets the reference count to zero. More...

int	incrRefCount () const

int	decrRefCount () const

int	getRefCount () const

int	getCopyNumber () const

Implementation *	clone () const
	This is a deep copy of the concrete Implementation object, except the Subsystem will have been removed. More...

void	realizeModel (State &s) const

void	realizeInstance (const State &s) const

void	realizeTime (const State &s) const

void	realizePosition (const State &s) const

void	realizeVelocity (const State &s) const

void	realizeDynamics (const State &s) const

void	realizeAcceleration (const State &s) const

void	realizeReport (const State &s) const

void	initialize (State &s) const
	This should be called at the start of a time stepping study to cause this Measure to set its state variables (if any) in the supplied state to their initial conditions. More...

int	getNumTimeDerivatives () const

Stage	getDependsOnStage (int derivOrder) const

void	setSubsystem (Subsystem &sub, MeasureIndex mx)

bool	isInSubsystem () const

const Subsystem &	getSubsystem () const

Subsystem &	updSubsystem ()

MeasureIndex	getSubsystemMeasureIndex () const

SubsystemIndex	getSubsystemIndex () const

void	invalidateTopologyCache () const

Stage	getStage (const State &s) const

virtual	~Implementation ()

virtual Implementation *	cloneVirtual () const =0

virtual void	realizeMeasureModelVirtual (State &) const

virtual void	realizeMeasureInstanceVirtual (const State &) const

virtual void	realizeMeasureTimeVirtual (const State &) const

virtual void	realizeMeasurePositionVirtual (const State &) const

virtual void	realizeMeasureVelocityVirtual (const State &) const

virtual void	realizeMeasureDynamicsVirtual (const State &) const

virtual void	realizeMeasureAccelerationVirtual (const State &) const

virtual void	realizeMeasureReportVirtual (const State &) const

virtual void	initializeVirtual (State &) const

virtual int	getNumTimeDerivativesVirtual () const

virtual Stage	getDependsOnStageVirtual (int order) const =0

Detailed Description

template<class T>
class SimTK::Measure_< T >::Implementation

This is the base Implementation class for all Measures whose value type is known.

This class is still abstract but provides many services related to the values of the derived Measure and its derivatives, all of which require cache entries of type T.

The constructor needs to be told how many type-T cache entries to allocate.

Constructor & Destructor Documentation

template<class T>

SimTK::Measure_< T >::Implementation::Implementation	(	const T &	defaultValue,
		int	numCacheEntries = `1`
	)

inlineexplicitprotected

template<class T>

SimTK::Measure_< T >::Implementation::Implementation ( int numCacheEntries = 1 )

inlineexplicitprotected

Argument numCacheEntries should be one greater than the number of derivatives; that is, there is room for the value ("0th" derivative) also.

The default is to allocate just room for the value.

template<class T>

SimTK::Measure_< T >::Implementation::Implementation ( const Implementation & source )

inlineprotected

Copy constructor copies the number of cache entries from the source, but not the cache indices themselves as those must be allocated uniquely for the copy.

Member Function Documentation

template<class T>

const T& SimTK::Measure_< T >::Implementation::getValue	(	const State &	s,
		int	derivOrder
	)		const

inline

template<class T>

void SimTK::Measure_< T >::Implementation::setDefaultValue ( const T & defaultValue )

inline

Set a new default value for this Measure.

This is a topological change.

template<class T>

const T& SimTK::Measure_< T >::Implementation::getDefaultValue ( ) const

inline

Return a reference to the value that this Measure will use to initialize its value-level state resource (state variable or cache entry) during the next call to realizeTopology().

template<class T>

void SimTK::Measure_< T >::Implementation::setIsPresumedValidAtDependsOnStage ( bool presume )

inline

template<class T>

bool SimTK::Measure_< T >::Implementation::getIsPresumedValidAtDependsOnStage ( ) const

inline

template<class T>

int SimTK::Measure_< T >::Implementation::size ( ) const

inlineprotected

Return the number of elements in the data type of this Measure; for Vector measures this is determined by the size of the default value.

template<class T>

int SimTK::Measure_< T >::Implementation::getNumCacheEntries ( ) const

inlineprotected

Return the number of cache entries allocated for the value and derivatives of this Measure.

template<class T>

const T& SimTK::Measure_< T >::Implementation::getCacheEntry	(	const State &	s,
		int	derivOrder
	)		const

inlineprotected

Get a const reference to the value stored in one of this Measure's cache entries, indexed by the derivative order (with the value treated as the 0th derivative).

template<class T>

T& SimTK::Measure_< T >::Implementation::updCacheEntry	(	const State &	s,
		int	derivOrder
	)		const

inlineprotected

Get a writable reference to the value stored in one of this Measure's cache entries, indexed by the derivative order (with the value treated as the 0th derivative).

template<class T>

bool SimTK::Measure_< T >::Implementation::isCacheValueRealized	(	const State &	s,
		int	derivOrder
	)		const

inlineprotected

Determine whether a particular one of this Measure's cache entries has already been realized since the given state was modified.

template<class T>

void SimTK::Measure_< T >::Implementation::markCacheValueRealized	(	const State &	s,
		int	derivOrder
	)		const

inlineprotected

Mark one of this Measure's cache entries up to date; call this after you have calculated a value or derivative and stored it in the corresponding cache entry.

template<class T>

void SimTK::Measure_< T >::Implementation::markCacheValueNotRealized	(	const State &	s,
		int	derivOrder
	)		const

inlineprotected

Invalidate one of this Measure's cache entries.

This is not normally necessary since the cache entries will be invalidated automatically when state variables they depend on change. However, this can be useful in some cases, particularly during debugging and testing.

template<class T>

virtual void SimTK::Measure_< T >::Implementation::realizeMeasureTopologyVirtual ( State & ) const

inlineprotectedvirtual

Concrete measures can override this to allocate Topology-stage resources.

Reimplemented in SimTK::Measure_< T >::Delay::Implementation, SimTK::Measure_< T >::Extreme::Implementation, SimTK::Measure_< T >::Differentiate::Implementation, SimTK::Measure_< T >::Integrate::Implementation, and SimTK::Measure_< T >::Variable::Implementation.

template<class T>

virtual void SimTK::Measure_< T >::Implementation::calcCachedValueVirtual	(	const State &	,
		int	derivOrder,
		T &	value
	)		const

inlineprotectedvirtual

Concrete measures must override this if the state cache is used for precalculated values or derivatives.

Reimplemented in SimTK::Measure_< T >::Delay::Implementation, SimTK::Measure_< T >::Integrate::Implementation, SimTK::Measure_< T >::Scale::Implementation, SimTK::Measure_< T >::Minus::Implementation, SimTK::Measure_< T >::Plus::Implementation, SimTK::Measure_< T >::Sinusoid::Implementation, and SimTK::Measure_< T >::Result::Implementation.

template<class T>

virtual const T& SimTK::Measure_< T >::Implementation::getUncachedValueVirtual	(	const State &	,
		int	derivOrder
	)		const

inlineprotectedvirtual

This is only called when derivOrder >= the number of cache entries we have, but still <= the number of derivatives the Measure says it can deliver.

You don't need to override this if that condition can't occur. This is commonly used for functions whose derivatives above a certain order are zero.

Reimplemented in SimTK::Measure_< T >::Extreme::Implementation, SimTK::Measure_< T >::Differentiate::Implementation, SimTK::Measure_< T >::Integrate::Implementation, SimTK::Measure_< T >::Variable::Implementation, SimTK::Measure_< T >::Time::Implementation, and SimTK::Measure_< T >::Constant::Implementation.

template<class T>

const T& SimTK::Measure_< T >::Implementation::getValueZero ( ) const

inlineprotected

Return a reference to a zero of the same type and size as this Measure's value.

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

MeasureImplementation.h

Public Member Functions

Protected Member Functions

Detailed Description

template<class T> class SimTK::Measure_< T >::Implementation

Constructor & Destructor Documentation

Member Function Documentation

template<class T>
class SimTK::Measure_< T >::Implementation