#include <sah.h>

Inheritance diagram for SampleAndHold:

Collaboration diagram for SampleAndHold:

Public Member Functions
	SampleAndHold (unsigned int uL, const DofOwner pDO, const ScalarNode pN, DriveCaller *pDC, const doublereal &dSP, flag fOut)

virtual	~SampleAndHold (void)

virtual std::ostream &	Restart (std::ostream &out) const

virtual void	SetValue (DataManager pDM, VectorHandler &X, VectorHandler &XP, SimulationEntity::Hints ph=0)

virtual void	Update (const class VectorHandler &, const class VectorHandler &)

Public Member Functions inherited from ParameterNode
	ParameterNode (unsigned int uL, const DofOwner *pDO, doublereal dx, flag fOut)

virtual	~ParameterNode (void)

virtual Node::Type	GetNodeType (void) const

virtual unsigned int	iGetNumDof (void) const

virtual DofOrder::Order	GetDofType (unsigned int i) const

virtual void	Output (OutputHandler &OH) const

virtual void	Update (const VectorHandler &XCurr, const VectorHandler &XPrimeCurr)

virtual void	Update (const VectorHandler &XCurr, const int iOrder)

virtual void	AfterPredict (VectorHandler &X, VectorHandler &XP)

virtual unsigned int	iGetNumPrivData (void) const

Public Member Functions inherited from ScalarAlgebraicNode
	ScalarAlgebraicNode (unsigned int uL, const DofOwner *pDO, doublereal dx, flag fOut)

virtual	~ScalarAlgebraicNode (void)

virtual const doublereal &	dGetDofValue (int iDof, int iOrder=0) const

virtual const doublereal &	dGetDofValuePrev (int iDof, int iOrder=0) const

virtual void	SetDofValue (const doublereal &dValue, unsigned int iDof, unsigned int iOrder=0)

virtual void	SetX (const doublereal &d)

virtual const doublereal &	dGetX (void) const

virtual void	SetXPrime (const doublereal &d)

virtual const doublereal &	dGetXPrime (void) const

virtual unsigned int	iGetPrivDataIdx (const char *s) const

Public Member Functions inherited from ScalarNode
	ScalarNode (unsigned int uL, const DofOwner *pDO, flag fOut)

virtual	~ScalarNode (void)

Public Member Functions inherited from Node
	Node (unsigned int uL, const DofOwner *pDO, flag fOut)

virtual	~Node (void)

const Node *	GetNode (void) const

virtual std::ostream &	DescribeDof (std::ostream &out, const char *prefix="", bool bInitial=false) const

virtual void	DescribeDof (std::vector< std::string > &desc, bool bInitial=false, int i=-1) const

virtual std::ostream &	DescribeEq (std::ostream &out, const char *prefix="", bool bInitial=false) const

virtual void	DescribeEq (std::vector< std::string > &desc, bool bInitial=false, int i=-1) const

virtual integer	iGetFirstRowIndex (void) const

virtual integer	iGetFirstColIndex (void) const

virtual doublereal	dGetPrivData (unsigned int i) const

Public Member Functions inherited from WithLabel
	WithLabel (unsigned int uL=0, const std::string &sN="")

virtual	~WithLabel (void)

void	PutLabel (unsigned int uL)

void	PutName (const std::string &sN)

unsigned int	GetLabel (void) const

const std::string &	GetName (void) const

Public Member Functions inherited from SimulationEntity
	SimulationEntity (void)

virtual	~SimulationEntity (void)

virtual bool	bIsValidIndex (unsigned int i) const

virtual DofOrder::Order	GetEqType (unsigned int i) const

virtual Hint *	ParseHint (DataManager pDM, const char s) const

virtual void	BeforePredict (VectorHandler &, VectorHandler &, VectorHandler &, VectorHandler &) const

virtual void	DerivativesUpdate (const VectorHandler &XCurr, const VectorHandler &XPrimeCurr)

virtual void	Update (const VectorHandler &XCurr, InverseDynamics::Order iOrder)

virtual void	AfterConvergence (const VectorHandler &X, const VectorHandler &XP)

virtual void	AfterConvergence (const VectorHandler &X, const VectorHandler &XP, const VectorHandler &XPP)

virtual std::ostream &	OutputAppend (std::ostream &out) const

virtual void	ReadInitialState (MBDynParser &HP)

Public Member Functions inherited from DofOwnerOwner
	DofOwnerOwner (const DofOwner *pDO)

virtual	~DofOwnerOwner ()

virtual const DofOwner *	pGetDofOwner (void) const

virtual integer	iGetFirstIndex (void) const

virtual void	SetInitialValue (VectorHandler &X)

Public Member Functions inherited from ToBeOutput
	ToBeOutput (flag fOut=fDefaultOut)

virtual	~ToBeOutput (void)

virtual void	OutputPrepare (OutputHandler &OH)

virtual void	Output (OutputHandler &OH, const VectorHandler &X, const VectorHandler &XP) const

virtual flag	fToBeOutput (void) const

virtual bool	bToBeOutput (void) const

virtual void	SetOutputFlag (flag f=flag(1))

Protected Attributes
const ScalarNode *	pNode

const DriveOwner	Time

const doublereal	dSamplePeriod

doublereal	dSampleTime

Protected Attributes inherited from ScalarAlgebraicNode
doublereal	dX

doublereal	dXPrev

Protected Attributes inherited from WithLabel
unsigned int	uLabel

std::string	sName

Protected Attributes inherited from ToBeOutput
flag	fOutput

Additional Inherited Members
Public Types inherited from Node
enum	Type { UNKNOWN = -1, ABSTRACT = 0, STRUCTURAL, ELECTRIC, THERMAL, PARAMETER, HYDRAULIC, LASTNODETYPE }

Public Types inherited from SimulationEntity
typedef std::vector< Hint * >	Hints

Public Types inherited from ToBeOutput
enum	{ OUTPUT = 0x1U, OUTPUT_MASK = 0xFU, OUTPUT_PRIVATE = 0x10U, OUTPUT_PRIVATE_MASK = ~OUTPUT_MASK }

Protected Member Functions inherited from ScalarAlgebraicNode
virtual std::ostream &	Output (std::ostream &out) const

Detailed Description

Definition at line 40 of file sah.h.

Constructor & Destructor Documentation

SampleAndHold::SampleAndHold	(	unsigned int	uL,
		const DofOwner *	pDO,
		const ScalarNode *	pN,
		DriveCaller *	pDC,
		const doublereal &	dSP,
		flag	fOut
	)

Definition at line 38 of file sah.cc.

References ASSERT, DriveOwner::dGet(), dSamplePeriod, dSampleTime, and Time.

 : ParameterNode(uL, pDO, 0., fOut),
 pNode(pN),
 Time(pDC),
 dSamplePeriod(dSP)
 {
         ASSERT(pN != 0);
         ASSERT(pDC != 0);
         ASSERT(dSP > 0.);
 
         dSampleTime = Time.dGet() + dSamplePeriod;
 }

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SampleAndHold::~SampleAndHold ( void )

virtual

Definition at line 56 of file sah.cc.

References NO_OP.

 {
         NO_OP;
 }

Member Function Documentation

std::ostream & SampleAndHold::Restart ( std::ostream & out ) const

virtual

Reimplemented from ScalarAlgebraicNode.

Definition at line 63 of file sah.cc.

 {
         return out << "# sample and hold parameter to be implemented" 
                 << std::endl;
 }

void SampleAndHold::SetValue	(	DataManager *	pDM,
		VectorHandler &	X,
		VectorHandler &	XP,
		SimulationEntity::Hints *	ph = `0`
	)

virtual

Reimplemented from ParameterNode.

Definition at line 70 of file sah.cc.

References DriveOwner::dGet(), ScalarNode::dGetX(), dSamplePeriod, dSampleTime, ScalarAlgebraicNode::dX, pNode, and Time.

 {
         dSampleTime = Time.dGet() + dSamplePeriod;
         dX = pNode->dGetX();
 }

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void SampleAndHold::Update	(	const class VectorHandler &	,
		const class VectorHandler &
	)

virtual

Reimplemented from ScalarAlgebraicNode.

Definition at line 80 of file sah.cc.

References DriveOwner::dGet(), ScalarNode::dGetX(), dSamplePeriod, dSampleTime, ScalarAlgebraicNode::dX, pNode, and Time.

 {
         doublereal dT = Time.dGet();
         if (dT >= dSampleTime) {
                 dX = pNode->dGetX();
                 dSampleTime += dSamplePeriod;
         }
 }