Integrate a set of ordinary differential equations (initial value problem) in time. More...

#include <vtkInitialValueProblemSolver.h>

Inheritance diagram for vtkInitialValueProblemSolver:

Collaboration diagram for vtkInitialValueProblemSolver:

Public Types
enum	ErrorCodes { OUT_OF_DOMAIN = 1, NOT_INITIALIZED = 2, UNEXPECTED_VALUE = 3 }

typedef vtkObject	Superclass

Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

Public Member Functions
virtual int	IsA (const char *type)

vtkInitialValueProblemSolver *	NewInstance () const

virtual void	PrintSelf (ostream &os, vtkIndent indent)

virtual int	IsAdaptive ()


virtual int	ComputeNextStep (double xprev, double xnext, double t, double &delT, double maxError, double &error)

virtual int	ComputeNextStep (double xprev, double dxprev, double *xnext, double t, double &delT, double maxError, double &error)

virtual int	ComputeNextStep (double xprev, double xnext, double t, double &delT, double &delTActual, double minStep, double maxStep, double maxError, double &error)

virtual int	ComputeNextStep (double xprev, double dxprev, double *xnext, double t, double &delT, double &delTActual, double minStep, double maxStep, double maxError, double &error)=0


virtual void	SetFunctionSet (vtkFunctionSet *functionset)

virtual vtkFunctionSet *	GetFunctionSet ()

Public Member Functions inherited from vtkObject
vtkObject *	NewInstance () const

virtual void	DebugOn ()

virtual void	DebugOff ()

bool	GetDebug ()

void	SetDebug (bool debugFlag)

virtual void	Modified ()

virtual unsigned long	GetMTime ()

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)

vtkCommand *	GetCommand (unsigned long tag)

void	RemoveObserver (vtkCommand *)

void	RemoveObservers (unsigned long event, vtkCommand *)

void	RemoveObservers (const char event, vtkCommand )

int	HasObserver (unsigned long event, vtkCommand *)

int	HasObserver (const char event, vtkCommand )

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

int	HasObserver (unsigned long event)

int	HasObserver (const char *event)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

int	InvokeEvent (unsigned long event, void *callData)

int	InvokeEvent (const char event, void callData)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const

virtual void	Delete ()

virtual void	FastDelete ()

void	Print (ostream &os)

virtual void	Register (vtkObjectBase *o)

virtual void	UnRegister (vtkObjectBase *o)

void	SetReferenceCount (int)

void	PrintRevisions (ostream &)

virtual void	PrintHeader (ostream &os, vtkIndent indent)

virtual void	PrintTrailer (ostream &os, vtkIndent indent)

int	GetReferenceCount ()

Static Public Member Functions
static int	IsTypeOf (const char *type)

static vtkInitialValueProblemSolver *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkObject
static int	IsTypeOf (const char *type)

static vtkObject *	SafeDownCast (vtkObjectBase *o)

static vtkObject *	New ()

static void	BreakOnError ()

static void	SetGlobalWarningDisplay (int val)

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static int	GetGlobalWarningDisplay ()

Static Public Member Functions inherited from vtkObjectBase
static int	IsTypeOf (const char *name)

static vtkObjectBase *	New ()

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkInitialValueProblemSolver ()

	~vtkInitialValueProblemSolver ()

virtual void	Initialize ()

Protected Member Functions inherited from vtkObject
	vtkObject ()

virtual	~vtkObject ()

virtual void	RegisterInternal (vtkObjectBase *, int check)

virtual void	UnRegisterInternal (vtkObjectBase *, int check)

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=NULL)

void	InternalReleaseFocus ()

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
vtkFunctionSet *	FunctionSet

double *	Vals

double *	Derivs

int	Initialized

int	Adaptive

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

Integrate a set of ordinary differential equations (initial value problem) in time.

Given a vtkFunctionSet which returns dF_i(x_j, t)/dt given x_j and t, vtkInitialValueProblemSolver computes the value of F_i at t+deltat.

Warning: vtkInitialValueProblemSolver and it's subclasses are not thread-safe. You should create a new integrator for each thread.

See also: vtkRungeKutta2 vtkRungeKutta4

Definition at line 39 of file vtkInitialValueProblemSolver.h.

Member Typedef Documentation

typedef vtkObject vtkInitialValueProblemSolver::Superclass

Definition at line 42 of file vtkInitialValueProblemSolver.h.

Member Enumeration Documentation

enum vtkInitialValueProblemSolver::ErrorCodes

Enumerator
OUT_OF_DOMAIN
NOT_INITIALIZED
UNEXPECTED_VALUE

Definition at line 104 of file vtkInitialValueProblemSolver.h.

Constructor & Destructor Documentation

vtkInitialValueProblemSolver::vtkInitialValueProblemSolver ( )

protected

vtkInitialValueProblemSolver::~vtkInitialValueProblemSolver ( )

protected

Member Function Documentation

static int vtkInitialValueProblemSolver::IsTypeOf ( const char * type )

static

virtual int vtkInitialValueProblemSolver::IsA ( const char * name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkObject.

Reimplemented in vtkRungeKutta45, vtkRungeKutta4, and vtkRungeKutta2.

static vtkInitialValueProblemSolver* vtkInitialValueProblemSolver::SafeDownCast ( vtkObjectBase * o )

static

virtual vtkObjectBase* vtkInitialValueProblemSolver::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkObject.

Reimplemented in vtkRungeKutta45, vtkRungeKutta4, and vtkRungeKutta2.

vtkInitialValueProblemSolver* vtkInitialValueProblemSolver::NewInstance ( ) const

virtual void vtkInitialValueProblemSolver::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

virtual

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkObject.

Reimplemented in vtkRungeKutta45, and vtkRungeKutta4.

virtual int vtkInitialValueProblemSolver::ComputeNextStep	(	double *	xprev,
		double *	xnext,
		double	t,
		double &	delT,
		double	maxError,
		double &	error
	)

inlinevirtual

Given initial values, xprev , initial time, t and a requested time interval, delT calculate values of x at t+delTActual (xnext). For certain concrete sub-classes delTActual != delT. This occurs when the solver supports adaptive stepsize control. If this is the case, the solver tries to change to stepsize such that the (estimated) error of the integration is less than maxError. The solver will not set the stepsize smaller than minStep or larger than maxStep. Also note that delT is an in/out argument. Adaptive solvers will modify delT to reflect the best (estimated) size for the next integration step. An estimated value for the error is returned (by reference) in error. Note that only some concrete sub-classes support this. Otherwise, the error is set to 0. This method returns an error code representing the nature of the failure: OutOfDomain = 1, NotInitialized = 2, UnexpectedValue = 3

Reimplemented in vtkRungeKutta45, vtkRungeKutta4, and vtkRungeKutta2.

Definition at line 60 of file vtkInitialValueProblemSolver.h.

virtual int vtkInitialValueProblemSolver::ComputeNextStep	(	double *	xprev,
		double *	dxprev,
		double *	xnext,
		double	t,
		double &	delT,
		double	maxError,
		double &	error
	)

inlinevirtual

Given initial values, xprev , initial time, t and a requested time interval, delT calculate values of x at t+delTActual (xnext). For certain concrete sub-classes delTActual != delT. This occurs when the solver supports adaptive stepsize control. If this is the case, the solver tries to change to stepsize such that the (estimated) error of the integration is less than maxError. The solver will not set the stepsize smaller than minStep or larger than maxStep. Also note that delT is an in/out argument. Adaptive solvers will modify delT to reflect the best (estimated) size for the next integration step. An estimated value for the error is returned (by reference) in error. Note that only some concrete sub-classes support this. Otherwise, the error is set to 0. This method returns an error code representing the nature of the failure: OutOfDomain = 1, NotInitialized = 2, UnexpectedValue = 3

Reimplemented in vtkRungeKutta45, vtkRungeKutta4, and vtkRungeKutta2.

Definition at line 70 of file vtkInitialValueProblemSolver.h.

virtual int vtkInitialValueProblemSolver::ComputeNextStep	(	double *	xprev,
		double *	xnext,
		double	t,
		double &	delT,
		double &	delTActual,
		double	minStep,
		double	maxStep,
		double	maxError,
		double &	error
	)

inlinevirtual

Given initial values, xprev , initial time, t and a requested time interval, delT calculate values of x at t+delTActual (xnext). For certain concrete sub-classes delTActual != delT. This occurs when the solver supports adaptive stepsize control. If this is the case, the solver tries to change to stepsize such that the (estimated) error of the integration is less than maxError. The solver will not set the stepsize smaller than minStep or larger than maxStep. Also note that delT is an in/out argument. Adaptive solvers will modify delT to reflect the best (estimated) size for the next integration step. An estimated value for the error is returned (by reference) in error. Note that only some concrete sub-classes support this. Otherwise, the error is set to 0. This method returns an error code representing the nature of the failure: OutOfDomain = 1, NotInitialized = 2, UnexpectedValue = 3

Reimplemented in vtkRungeKutta45, vtkRungeKutta4, and vtkRungeKutta2.

Definition at line 80 of file vtkInitialValueProblemSolver.h.

virtual int vtkInitialValueProblemSolver::ComputeNextStep	(	double *	xprev,
		double *	dxprev,
		double *	xnext,
		double	t,
		double &	delT,
		double &	delTActual,
		double	minStep,
		double	maxStep,
		double	maxError,
		double &	error
	)

pure virtual

Given initial values, xprev , initial time, t and a requested time interval, delT calculate values of x at t+delTActual (xnext). For certain concrete sub-classes delTActual != delT. This occurs when the solver supports adaptive stepsize control. If this is the case, the solver tries to change to stepsize such that the (estimated) error of the integration is less than maxError. The solver will not set the stepsize smaller than minStep or larger than maxStep. Also note that delT is an in/out argument. Adaptive solvers will modify delT to reflect the best (estimated) size for the next integration step. An estimated value for the error is returned (by reference) in error. Note that only some concrete sub-classes support this. Otherwise, the error is set to 0. This method returns an error code representing the nature of the failure: OutOfDomain = 1, NotInitialized = 2, UnexpectedValue = 3

Implemented in vtkRungeKutta45, vtkRungeKutta4, and vtkRungeKutta2.

virtual void vtkInitialValueProblemSolver::SetFunctionSet ( vtkFunctionSet * functionset )

virtual

Set / get the dataset used for the implicit function evaluation.

virtual vtkFunctionSet* vtkInitialValueProblemSolver::GetFunctionSet ( )

virtual

Set / get the dataset used for the implicit function evaluation.

virtual int vtkInitialValueProblemSolver::IsAdaptive ( )

inlinevirtual

Returns 1 if the solver uses adaptive stepsize control, 0 otherwise

Definition at line 101 of file vtkInitialValueProblemSolver.h.

virtual void vtkInitialValueProblemSolver::Initialize ( )