vtkRungeKutta4 Class Reference

#include <vtkRungeKutta4.h>

Inheritance diagram for vtkRungeKutta4:

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Collaboration diagram for vtkRungeKutta4:

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List of all members.

Detailed Description

Integrate an initial value problem using 4th order Runge-Kutta method.

This is a concrete sub-class of vtkInitialValueProblemSolver. It uses a 4th order Runge-Kutta method to obtain the values of a set of functions at the next time step.

See also:: vtkInitialValueProblemSolver vtkRungeKutta45 vtkRungeKutta2 vtkFunctionSet

Examples:: vtkRungeKutta4 (Examples)

Tests:: vtkRungeKutta4 (Tests)

Definition at line 39 of file vtkRungeKutta4.h.


Public Types
typedef vtkInitialValueProblemSolver	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
virtual void	PrintSelf (ostream &os, vtkIndent indent)

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)
Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkRungeKutta4 *	SafeDownCast (vtkObject *o)
static vtkRungeKutta4 *	New ()
Protected Member Functions
	vtkRungeKutta4 ()
	~vtkRungeKutta4 ()
virtual void	Initialize ()
Protected Attributes
double *	NextDerivs [3]

Member Typedef Documentation

typedef vtkInitialValueProblemSolver vtkRungeKutta4::Superclass

Reimplemented from vtkInitialValueProblemSolver.

Definition at line 42 of file vtkRungeKutta4.h.

Constructor & Destructor Documentation

vtkRungeKutta4::vtkRungeKutta4 ( ) [protected]

vtkRungeKutta4::~vtkRungeKutta4 ( ) [protected]

Member Function Documentation

virtual const char* vtkRungeKutta4::GetClassName ( ) [virtual]

Reimplemented from vtkInitialValueProblemSolver.

static int vtkRungeKutta4::IsTypeOf ( const char * name ) [static]

Return 1 if this class type 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 vtkInitialValueProblemSolver.

virtual int vtkRungeKutta4::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 vtkInitialValueProblemSolver.

static vtkRungeKutta4* vtkRungeKutta4::SafeDownCast ( vtkObject * o ) [static]

Reimplemented from vtkInitialValueProblemSolver.

virtual void vtkRungeKutta4::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 vtkInitialValueProblemSolver.

static vtkRungeKutta4* vtkRungeKutta4::New ( ) [static]

Construct a vtkRungeKutta4 with no initial FunctionSet.

Reimplemented from vtkObject.

virtual int vtkRungeKutta4::ComputeNextStep	(	double *	xprev,
		double *	xnext,
		double	t,
		double &	delT,
		double	maxError,
		double &	error
	)			`[inline, virtual]`

Given initial values, xprev , initial time, t and a requested time interval, delT calculate values of x at t+delT (xnext). delTActual is always equal to delT. Since this class can not provide an estimate for the error error is set to 0. maxStep, minStep and maxError are unused. This method returns an error code representing the nature of the failure: OutOfDomain = 1, NotInitialized = 2, UnexpectedValue = 3

Reimplemented from vtkInitialValueProblemSolver.

Definition at line 56 of file vtkRungeKutta4.h.

virtual int vtkRungeKutta4::ComputeNextStep	(	double *	xprev,
		double *	dxprev,
		double *	xnext,
		double	t,
		double &	delT,
		double	maxError,
		double &	error
	)			`[inline, virtual]`

Given initial values, xprev , initial time, t and a requested time interval, delT calculate values of x at t+delT (xnext). delTActual is always equal to delT. Since this class can not provide an estimate for the error error is set to 0. maxStep, minStep and maxError are unused. This method returns an error code representing the nature of the failure: OutOfDomain = 1, NotInitialized = 2, UnexpectedValue = 3

Reimplemented from vtkInitialValueProblemSolver.

Definition at line 65 of file vtkRungeKutta4.h.

virtual int vtkRungeKutta4::ComputeNextStep	(	double *	xprev,
		double *	xnext,
		double	t,
		double &	delT,
		double &	delTActual,
		double	minStep,
		double	maxStep,
		double	maxError,
		double &	error
	)			`[inline, virtual]`

Given initial values, xprev , initial time, t and a requested time interval, delT calculate values of x at t+delT (xnext). delTActual is always equal to delT. Since this class can not provide an estimate for the error error is set to 0. maxStep, minStep and maxError are unused. This method returns an error code representing the nature of the failure: OutOfDomain = 1, NotInitialized = 2, UnexpectedValue = 3

Reimplemented from vtkInitialValueProblemSolver.

Definition at line 75 of file vtkRungeKutta4.h.

virtual int vtkRungeKutta4::ComputeNextStep	(	double *	xprev,
		double *	dxprev,
		double *	xnext,
		double	t,
		double &	delT,
		double &	delTActual,
		double	minStep,
		double	maxStep,
		double	maxError,
		double &	error
	)			`[virtual]`

Given initial values, xprev , initial time, t and a requested time interval, delT calculate values of x at t+delT (xnext). delTActual is always equal to delT. Since this class can not provide an estimate for the error error is set to 0. maxStep, minStep and maxError are unused. This method returns an error code representing the nature of the failure: OutOfDomain = 1, NotInitialized = 2, UnexpectedValue = 3

Implements vtkInitialValueProblemSolver.

virtual void vtkRungeKutta4::Initialize ( ) [protected, virtual]

Reimplemented from vtkInitialValueProblemSolver.