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| void | Initialize (vtkAbstractPointLocator *loc, vtkDataSet *ds, vtkPointData *pd) override |
| | Produce the computational parameters for the kernel.
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| |
| vtkIdType | ComputeBasis (double x[3], vtkIdList *pIds, vtkIdType ptId=0) override |
| | Given a point x (and optional associated ptId), determine the points around x which form an interpolation basis.
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| |
| vtkIdType | ComputeWeights (double x[3], vtkIdList *pIds, vtkDoubleArray *weights) override |
| | Given a point x, and a list of basis points pIds, compute interpolation weights associated with these basis points.
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| |
| 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.
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| |
| virtual double | ComputeFunctionWeight (const double d)=0 |
| | Compute weighting factor given a normalized distance from a sample point.
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| |
| virtual double | ComputeDerivWeight (const double d)=0 |
| | Compute weighting factor for derivative quantities given a normalized distance from a sample point.
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| |
|
| virtual void | SetSpatialStep (double) |
| | The user defined initial particle spatial step.
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| |
| virtual double | GetSpatialStep () |
| | The user defined initial particle spatial step.
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| |
|
| virtual void | SetDimension (int) |
| | The domain dimension, default to 3.
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| |
| virtual int | GetDimension () |
| | The domain dimension, default to 3.
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| |
|
| virtual double | GetCutoffFactor () |
| | Return the cutoff factor.
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| |
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| virtual void | SetCutoffArray (vtkDataArray *) |
| | Specify the (optional) array defining a cutoff distance.
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| virtual vtkDataArray * | GetCutoffArray () |
| | Specify the (optional) array defining a cutoff distance.
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| |
|
| virtual void | SetDensityArray (vtkDataArray *) |
| | Specify the (optional) density array.
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| |
| virtual vtkDataArray * | GetDensityArray () |
| | Specify the (optional) density array.
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| |
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| virtual void | SetMassArray (vtkDataArray *) |
| | Specify the (optional) mass array.
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| |
| virtual vtkDataArray * | GetMassArray () |
| | Specify the (optional) mass array.
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| |
|
| virtual double | GetNormFactor () |
| | Return the SPH normalization factor.
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| |
| virtual void | Initialize (vtkAbstractPointLocator *loc, vtkDataSet *ds, vtkPointData *pd) |
| | Initialize the kernel.
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| |
| virtual vtkIdType | ComputeBasis (double x[3], vtkIdList *pIds, vtkIdType ptId=0)=0 |
| | Given a point x (and optional associated point id), determine the points around x which form an interpolation basis.
|
| |
| virtual vtkIdType | ComputeWeights (double x[3], vtkIdList *pIds, vtkDoubleArray *weights)=0 |
| | Given a point x, and a list of basis points pIds, compute interpolation weights associated with these basis points.
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| |
| | vtkAbstractTypeMacro (vtkInterpolationKernel, vtkObject) |
| | Standard method for type and printing.
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| virtual void | SetRequiresInitialization (bool) |
| | Indicate whether the kernel needs initialization.
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| virtual bool | GetRequiresInitialization () |
| | Indicate whether the kernel needs initialization.
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| virtual void | RequiresInitializationOn () |
| | Indicate whether the kernel needs initialization.
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| virtual void | RequiresInitializationOff () |
| | Indicate whether the kernel needs initialization.
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| |
| | vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
| |
| virtual void | DebugOn () |
| | Turn debugging output on.
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| |
| virtual void | DebugOff () |
| | Turn debugging output off.
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| bool | GetDebug () |
| | Get the value of the debug flag.
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| |
| void | SetDebug (bool debugFlag) |
| | Set the value of the debug flag.
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| |
| virtual void | Modified () |
| | Update the modification time for this object.
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| |
| virtual vtkMTimeType | GetMTime () |
| | Return this object's modified time.
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| |
| void | PrintSelf (ostream &os, vtkIndent indent) override |
| | Methods invoked by print to print information about the object including superclasses.
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| void | RemoveObserver (unsigned long tag) |
| |
| void | RemoveObservers (unsigned long event) |
| |
| void | RemoveObservers (const char *event) |
| |
| void | RemoveAllObservers () |
| |
| vtkTypeBool | HasObserver (unsigned long event) |
| |
| vtkTypeBool | 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.
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| |
| unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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| |
| vtkCommand * | GetCommand (unsigned long tag) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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| |
| void | RemoveObserver (vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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| |
| void | RemoveObservers (unsigned long event, vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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| |
| void | RemoveObservers (const char *event, vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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| |
| vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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| |
| vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
| |
| 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.
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| |
| 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.
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| |
| 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.
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| |
| int | InvokeEvent (unsigned long event, void *callData) |
| | This method invokes an event and return whether the event was aborted or not.
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| |
| int | InvokeEvent (const char *event, void *callData) |
| | This method invokes an event and return whether the event was aborted or not.
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| |
| const char * | GetClassName () const |
| | Return the class name as a string.
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| |
| virtual vtkTypeBool | IsA (const char *name) |
| | Return 1 if this class is the same type of (or a subclass of) the named class.
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| |
| virtual vtkIdType | GetNumberOfGenerationsFromBase (const char *name) |
| | Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
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| |
| virtual void | Delete () |
| | Delete a VTK object.
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| |
| virtual void | FastDelete () |
| | Delete a reference to this object.
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| |
| void | InitializeObjectBase () |
| |
| void | Print (ostream &os) |
| | Print an object to an ostream.
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| |
| virtual void | Register (vtkObjectBase *o) |
| | Increase the reference count (mark as used by another object).
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| |
| virtual void | UnRegister (vtkObjectBase *o) |
| | Decrease the reference count (release by another object).
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| |
| int | GetReferenceCount () |
| | Return the current reference count of this object.
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| |
| void | SetReferenceCount (int) |
| | Sets the reference count.
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| |
| bool | GetIsInMemkind () const |
| | A local state flag that remembers whether this object lives in the normal or extended memory space.
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| |
| virtual void | PrintHeader (ostream &os, vtkIndent indent) |
| | Methods invoked by print to print information about the object including superclasses.
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| |
| virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
| | Methods invoked by print to print information about the object including superclasses.
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| |
|
| static vtkObject * | New () |
| | Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
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| |
| static void | BreakOnError () |
| | This method is called when vtkErrorMacro executes.
|
| |
| static void | SetGlobalWarningDisplay (int val) |
| | This is a global flag that controls whether any debug, warning or error messages are displayed.
|
| |
| static void | GlobalWarningDisplayOn () |
| | This is a global flag that controls whether any debug, warning or error messages are displayed.
|
| |
| static void | GlobalWarningDisplayOff () |
| | This is a global flag that controls whether any debug, warning or error messages are displayed.
|
| |
| static int | GetGlobalWarningDisplay () |
| | This is a global flag that controls whether any debug, warning or error messages are displayed.
|
| |
| static vtkTypeBool | IsTypeOf (const char *name) |
| | Return 1 if this class type is the same type of (or a subclass of) the named class.
|
| |
| static vtkIdType | GetNumberOfGenerationsFromBaseType (const char *name) |
| | Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
|
| |
| static vtkObjectBase * | New () |
| | Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
|
| |
| static void | SetMemkindDirectory (const char *directoryname) |
| | The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.
|
| |
| static bool | GetUsingMemkind () |
| | A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.
|
| |
| static vtkMallocingFunction | GetCurrentMallocFunction () |
| |
| static vtkReallocingFunction | GetCurrentReallocFunction () |
| |
| static vtkFreeingFunction | GetCurrentFreeFunction () |
| |
| static vtkFreeingFunction | GetAlternateFreeFunction () |
| |
a family of SPH interpolation kernels
vtkSPHKernel is an abstract superclass for smoothed-particle hydrodynamics interpolation kernels as described by D.J. Price (see full reference below).
Note that the kernel operates over a volume in space defined by a radius at a sampling point. The kernel implicitly assumes that the particles making up the input data satisfies physical properties such as conservation of mass. Therefore subclasses of this kernel are not generally applicable for interpolation processes, and therefore operate in conjunction with the vthSPHInterpolator class.
By default the kernel computes local particle volume from the spatial step^3. However, if both an optional mass and density arrays are provided then they are used to compute local volume.
Also be default, the local neighborhood around a point to be interpolated is computed as the CutoffFactor * SpatialStep. (Note the CutoffFactor varies for each type of SPH kernel.) However, the user may specify a CutoffArray which enables variable cutoff distances per each point.
- 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 vtkSPHQuinticKernel vtkInterpolationKernel vtkGaussianKernel vtkShepardKernel vtkLinearKernel
Definition at line 67 of file vtkSPHKernel.h.
Public Member Functions inherited from vtkInterpolationKernel
1.9.6