vtkSPHQuarticKernel Class Reference

a quartic SPH interpolation kernel More...

#include <vtkSPHQuarticKernel.h>

Inheritance diagram for vtkSPHQuarticKernel:

Collaboration diagram for vtkSPHQuarticKernel:

Public Member Functions
virtual void	Initialize (vtkAbstractPointLocator *loc, vtkDataSet *ds, vtkPointData *pd)
	Produce the computational parameters for the kernel. More...
virtual double	ComputeFunctionWeight (const double d)
	Compute weighting factor given a normalized distance from a sample point. More...
virtual double	ComputeDerivWeight (const double d)
	Compute weighting factor for derivative quantities given a normalized distance from a sample point. More...
Public Member Functions inherited from vtkSPHKernel
virtual vtkIdType	ComputeBasis (double x[3], vtkIdList *pIds, vtkIdType ptId=0)
	Given a point x (and optional associated ptId), determine the points around x which form an interpolation basis. More...
virtual vtkIdType	ComputeWeights (double x[3], vtkIdList *pIds, vtkDoubleArray *weights)
	Given a point x, and a list of basis points pIds, compute interpolation weights associated with these basis points. More...
virtual vtkIdType	ComputeDerivWeights (double x[3], vtkIdList *pIds, vtkDoubleArray *weights, vtkDoubleArray *gradWeights)
	Given a point x, and a list of basis points pIds, compute interpolation weights, plus derivative weights, associated with these basis points. More...
virtual void	SetSpatialStep (double)
	The user defined intial particle spatial step. More...
virtual double	GetSpatialStep ()
	The user defined intial particle spatial step. More...
virtual void	SetDimension (int)
	The domain dimension, default to 3. More...
virtual int	GetDimension ()
	The domain dimension, default to 3. More...
virtual double	GetCutoffFactor ()
	Return the cutoff factor. More...
virtual void	SetCutoffArray (vtkDataArray *)
	Specify the (optional) array defining a cutoff distance. More...
virtual vtkDataArray *	GetCutoffArray ()
	Specify the (optional) array defining a cutoff distance. More...
virtual void	SetDensityArray (vtkDataArray *)
	Specify the (optional) density array. More...
virtual vtkDataArray *	GetDensityArray ()
	Specify the (optional) density array. More...
virtual void	SetMassArray (vtkDataArray *)
	Specify the (optional) mass array. More...
virtual vtkDataArray *	GetMassArray ()
	Specify the (optional) mass array. More...
virtual double	GetNormFactor ()
	Return the SPH normalization factor. More...
vtkSPHKernel *	NewInstance () const
	Standard methods for instantiation, obtaining type information, and printing. More...
Public Member Functions inherited from vtkInterpolationKernel
	vtkAbstractTypeMacro (vtkInterpolationKernel, vtkObject)
	Standard method for type and printing. More...
virtual void	SetRequiresInitialization (bool)
	Indicate whether the kernel needs initialization. More...
virtual bool	GetRequiresInitialization ()
	Indicate whether the kernel needs initialization. More...
virtual void	RequiresInitializationOn ()
	Indicate whether the kernel needs initialization. More...
virtual void	RequiresInitializationOff ()
	Indicate whether the kernel needs initialization. More...
Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)
virtual void	DebugOn ()
	Turn debugging output on. More...
virtual void	DebugOff ()
	Turn debugging output off. More...
bool	GetDebug ()
	Get the value of the debug flag. More...
void	SetDebug (bool debugFlag)
	Set the value of the debug flag. More...
virtual void	Modified ()
	Update the modification time for this object. More...
virtual vtkMTimeType	GetMTime ()
	Return this object's modified time. More...
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)
int	InvokeEvent (unsigned long event)
int	InvokeEvent (const char *event)
unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
unsigned long	AddObserver (const char *event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
void	RemoveObservers (const char *event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
int	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
int	HasObserver (const char *event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method. More...
int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...
int	InvokeEvent (const char *event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...
Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string. More...
virtual void	Delete ()
	Delete a VTK object. More...
virtual void	FastDelete ()
	Delete a reference to this object. More...
void	InitializeObjectBase ()
void	Print (ostream &os)
	Print an object to an ostream. More...
virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object). More...
virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object). More...
int	GetReferenceCount ()
	Return the current reference count of this object. More...
void	SetReferenceCount (int)
	Sets the reference count. More...
void	PrintRevisions (ostream &)
	Legacy. More...
virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...
virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

Protected Member Functions
	vtkSPHQuarticKernel ()
	~vtkSPHQuarticKernel ()
Protected Member Functions inherited from vtkSPHKernel
	vtkSPHKernel ()
	~vtkSPHKernel ()
Protected Member Functions inherited from vtkInterpolationKernel
	vtkInterpolationKernel ()
	~vtkInterpolationKernel ()
virtual void	FreeStructures ()
Protected Member Functions inherited from vtkObject
	vtkObject ()
	~vtkObject () override
void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override
void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override
void	InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=NULL)
	These methods allow a command to exclusively grab all events. More...
void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events. More...
Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()
virtual	~vtkObjectBase ()
virtual void	CollectRevisions (ostream &)
virtual void	ReportReferences (vtkGarbageCollector *)
	vtkObjectBase (const vtkObjectBase &)
void	operator= (const vtkObjectBase &)
typedef vtkSPHKernel	Superclass
	Standard methods for instantiation, obtaining type information, and printing. More...
static vtkSPHQuarticKernel *	New ()
	Standard methods for instantiation, obtaining type information, and printing. More...
static int	IsTypeOf (const char *type)
	Standard methods for instantiation, obtaining type information, and printing. More...
static vtkSPHQuarticKernel *	SafeDownCast (vtkObjectBase *o)
	Standard methods for instantiation, obtaining type information, and printing. More...
virtual int	IsA (const char *type)
	Standard methods for instantiation, obtaining type information, and printing. More...
vtkSPHQuarticKernel *	NewInstance () const
	Standard methods for instantiation, obtaining type information, and printing. More...
void	PrintSelf (ostream &os, vtkIndent indent)
	Standard methods for instantiation, obtaining type information, and printing. More...
virtual vtkObjectBase *	NewInstanceInternal () const
	Standard methods for instantiation, obtaining type information, and printing. More...

Additional Inherited Members
Public Types inherited from vtkSPHKernel
typedef vtkInterpolationKernel	Superclass
	Standard methods for instantiation, obtaining type information, and printing. More...
Static Public Member Functions inherited from vtkSPHKernel
static int	IsTypeOf (const char *type)
	Standard methods for instantiation, obtaining type information, and printing. More...
static vtkSPHKernel *	SafeDownCast (vtkObjectBase *o)
	Standard methods for instantiation, obtaining type information, and printing. More...
Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
static void	BreakOnError ()
	This method is called when vtkErrorMacro executes. More...
static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...
static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...
static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...
static int	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...
Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class. More...
static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
Protected Attributes inherited from vtkSPHKernel
double	SpatialStep
int	Dimension
vtkDataArray *	CutoffArray
vtkDataArray *	DensityArray
vtkDataArray *	MassArray
double	CutoffFactor
double	Cutoff
double	Sigma
double	DistNorm
double	NormFactor
double	DefaultVolume
bool	UseCutoffArray
bool	UseArraysForVolume
Protected Attributes inherited from vtkInterpolationKernel
bool	RequiresInitialization
vtkAbstractPointLocator *	Locator
vtkDataSet *	DataSet
vtkPointData *	PointData
Protected Attributes inherited from vtkObject
bool	Debug
vtkTimeStamp	MTime
vtkSubjectHelper *	SubjectHelper
Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount
vtkWeakPointerBase **	WeakPointers

Detailed Description

a quartic SPH interpolation kernel

vtkSPHQuarticKernel is an smooth particle hydrodynamics interpolation kernel as described by D.J. Price. This is a quartic formulation.

Warning

For more information see D.J. Price, Smoothed particle hydrodynamics and magnetohydrodynamics, J. Comput. Phys. 231:759-794, 2012. Especially equation 49.

Acknowledgments:

The following work has been generously supported by Altair Engineering and FluiDyna GmbH. Please contact Steve Cosgrove or Milos Stanic for more information.

See also

vtkSPHKernel vtkSPHInterpolator

Tests:

vtkSPHQuarticKernel (Tests)

Definition at line 51 of file vtkSPHQuarticKernel.h.

Member Typedef Documentation

typedef vtkSPHKernel vtkSPHQuarticKernel::Superclass

Standard methods for instantiation, obtaining type information, and printing.

Definition at line 59 of file vtkSPHQuarticKernel.h.

Constructor & Destructor Documentation

vtkSPHQuarticKernel::vtkSPHQuarticKernel ( )

protected

vtkSPHQuarticKernel::~vtkSPHQuarticKernel ( )

protected

Member Function Documentation

static vtkSPHQuarticKernel* vtkSPHQuarticKernel::New ( )

static

Standard methods for instantiation, obtaining type information, and printing.

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

static

Standard methods for instantiation, obtaining type information, and printing.

virtual int vtkSPHQuarticKernel::IsA ( const char *  type )

virtual

Standard methods for instantiation, obtaining type information, and printing.

Reimplemented from vtkSPHKernel.

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

static

Standard methods for instantiation, obtaining type information, and printing.

virtual vtkObjectBase* vtkSPHQuarticKernel::NewInstanceInternal ( ) const

protectedvirtual

Standard methods for instantiation, obtaining type information, and printing.

Reimplemented from vtkSPHKernel.

vtkSPHQuarticKernel* vtkSPHQuarticKernel::NewInstance

(

)

const

Standard methods for instantiation, obtaining type information, and printing.

void vtkSPHQuarticKernel::PrintSelf ( ostream &  os, vtkIndent  indent  )

virtual

Standard methods for instantiation, obtaining type information, and printing.

Reimplemented from vtkSPHKernel.

virtual void vtkSPHQuarticKernel::Initialize ( vtkAbstractPointLocator *  loc, vtkDataSet *  ds, vtkPointData *  pd  )

virtual

Produce the computational parameters for the kernel.

Invoke this method after setting initial values like SpatialStep.

Reimplemented from vtkSPHKernel.

virtual double vtkSPHQuarticKernel::ComputeFunctionWeight ( const double  d )

inlinevirtual

Compute weighting factor given a normalized distance from a sample point.

Implements vtkSPHKernel.

Definition at line 74 of file vtkSPHQuarticKernel.h.

virtual double vtkSPHQuarticKernel::ComputeDerivWeight ( const double  d )

inlinevirtual

Compute weighting factor for derivative quantities given a normalized distance from a sample point.

Implements vtkSPHKernel.

Definition at line 89 of file vtkSPHQuarticKernel.h.

---

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

• /home/demarle/Builds/VTK/release/Utilities/Doxygen/dox/Filters/Points/vtkSPHQuarticKernel.h