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virtual vtkTypeBool | IsA (const char *type) |
| Return 1 if this class is the same type of (or a subclass of) the named class. More...
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vtkSPHInterpolator * | NewInstance () const |
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void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses. More...
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void | SetSourceData (vtkDataObject *source) |
| Specify the dataset Pc that will be probed by the input points P. More...
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vtkDataObject * | GetSource () |
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void | SetSourceConnection (vtkAlgorithmOutput *algOutput) |
| Specify the dataset Pc that will be probed by the input points P. More...
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void | SetLocator (vtkAbstractPointLocator *locator) |
| Specify a point locator. More...
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virtual vtkAbstractPointLocator * | GetLocator () |
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void | SetKernel (vtkSPHKernel *kernel) |
| Specify an interpolation kernel. More...
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virtual vtkSPHKernel * | GetKernel () |
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virtual void | SetCutoffArrayName (vtkStdString) |
| Specify an (optional) cutoff distance for each point in the input P. More...
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virtual vtkStdString | GetCutoffArrayName () |
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virtual void | SetDensityArrayName (vtkStdString) |
| Specify the density array name. More...
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virtual vtkStdString | GetDensityArrayName () |
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virtual void | SetMassArrayName (vtkStdString) |
| Specify the mass array name. More...
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virtual vtkStdString | GetMassArrayName () |
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void | AddExcludedArray (const vtkStdString &excludedArray) |
| Adds an array to the list of arrays which are to be excluded from the interpolation process. More...
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void | ClearExcludedArrays () |
| Clears the contents of excluded array list. More...
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int | GetNumberOfExcludedArrays () |
| Return the number of excluded arrays. More...
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const char * | GetExcludedArray (int i) |
| Return the name of the ith excluded array. More...
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void | AddDerivativeArray (const vtkStdString &derivArray) |
| Adds an array to the list of arrays whose derivative is to be taken. More...
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void | ClearDerivativeArrays () |
| Clears the contents of derivative array list. More...
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int | GetNumberOfDerivativeArrays () |
| Return the number of derivative arrays. More...
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const char * | GetDerivativeArray (int i) |
| Return the name of the ith derivative array. More...
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virtual void | SetNullPointsStrategy (int) |
| Specify a strategy to use when encountering a "null" point during the interpolation process. More...
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virtual int | GetNullPointsStrategy () |
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void | SetNullPointsStrategyToMaskPoints () |
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void | SetNullPointsStrategyToNullValue () |
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virtual void | SetValidPointsMaskArrayName (vtkStdString) |
| If the NullPointsStrategy == MASK_POINTS, then an array is generated for each input point. More...
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virtual vtkStdString | GetValidPointsMaskArrayName () |
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virtual void | SetNullValue (double) |
| Specify the null point value. More...
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virtual double | GetNullValue () |
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virtual void | SetComputeShepardSum (vtkTypeBool) |
| Indicate whether to compute the summation of weighting coefficients (the so-called Shepard sum). More...
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virtual void | ComputeShepardSumOn () |
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virtual void | ComputeShepardSumOff () |
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virtual vtkTypeBool | GetComputeShepardSum () |
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virtual void | SetShepardSumArrayName (vtkStdString) |
| If ComputeShepardSum is on, then an array is generated with name ShepardSumArrayName for each input point. More...
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virtual vtkStdString | GetShepardSumArrayName () |
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virtual void | SetPromoteOutputArrays (vtkTypeBool) |
| If enabled, then input arrays that are non-real types (i.e., not float or double) are promoted to float type on output. More...
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virtual void | PromoteOutputArraysOn () |
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virtual void | PromoteOutputArraysOff () |
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virtual vtkTypeBool | GetPromoteOutputArrays () |
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virtual void | SetPassPointArrays (vtkTypeBool) |
| Indicate whether to shallow copy the input point data arrays to the output. More...
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virtual void | PassPointArraysOn () |
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virtual void | PassPointArraysOff () |
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virtual vtkTypeBool | GetPassPointArrays () |
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virtual void | SetPassCellArrays (vtkTypeBool) |
| Indicate whether to shallow copy the input cell data arrays to the output. More...
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virtual void | PassCellArraysOn () |
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virtual void | PassCellArraysOff () |
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virtual vtkTypeBool | GetPassCellArrays () |
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virtual void | SetPassFieldArrays (vtkTypeBool) |
| Indicate whether to pass the field-data arrays from the input to the output. More...
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virtual void | PassFieldArraysOn () |
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virtual void | PassFieldArraysOff () |
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virtual vtkTypeBool | GetPassFieldArrays () |
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virtual void | SetShepardNormalization (vtkTypeBool) |
| Indicate whether to normalize all arrays with the Shepard coefficients (except the density array and the Shepard sum array). More...
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virtual void | ShepardNormalizationOn () |
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virtual void | ShepardNormalizationOff () |
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virtual vtkTypeBool | GetShepardNormalization () |
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vtkMTimeType | GetMTime () override |
| Get the MTime of this object also considering the locator and kernel. More...
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vtkDataSetAlgorithm * | NewInstance () const |
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vtkDataSet * | GetOutput () |
| Get the output data object for a port on this algorithm. More...
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vtkDataSet * | GetOutput (int) |
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vtkDataObject * | GetInput () |
| Get the input data object. More...
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vtkPolyData * | GetPolyDataOutput () |
| Get the output as vtkPolyData. More...
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vtkStructuredPoints * | GetStructuredPointsOutput () |
| Get the output as vtkStructuredPoints. More...
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vtkImageData * | GetImageDataOutput () |
| Get the output as vtkStructuredPoints. More...
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vtkStructuredGrid * | GetStructuredGridOutput () |
| Get the output as vtkStructuredGrid. More...
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vtkUnstructuredGrid * | GetUnstructuredGridOutput () |
| Get the output as vtkUnstructuredGrid. More...
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vtkRectilinearGrid * | GetRectilinearGridOutput () |
| Get the output as vtkRectilinearGrid. More...
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void | SetInputData (vtkDataObject *) |
| Assign a data object as input. More...
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void | SetInputData (int, vtkDataObject *) |
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void | SetInputData (vtkDataSet *) |
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void | SetInputData (int, vtkDataSet *) |
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void | AddInputData (vtkDataObject *) |
| Assign a data object as input. More...
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void | AddInputData (vtkDataSet *) |
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void | AddInputData (int, vtkDataSet *) |
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void | AddInputData (int, vtkDataObject *) |
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int | ProcessRequest (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) override |
| see vtkAlgorithm for details More...
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vtkAlgorithm * | NewInstance () const |
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int | HasExecutive () |
| Check whether this algorithm has an assigned executive. More...
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vtkExecutive * | GetExecutive () |
| Get this algorithm's executive. More...
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virtual void | SetExecutive (vtkExecutive *executive) |
| Set this algorithm's executive. More...
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int | ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo) |
| Version of ProcessRequest() that is wrapped. More...
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virtual int | ComputePipelineMTime (vtkInformation *request, vtkInformationVector **inInfoVec, vtkInformationVector *outInfoVec, int requestFromOutputPort, vtkMTimeType *mtime) |
| A special version of ProcessRequest meant specifically for the pipeline modified time request. More...
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virtual int | ModifyRequest (vtkInformation *request, int when) |
| This method gives the algorithm a chance to modify the contents of a request before or after (specified in the when argument) it is forwarded. More...
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vtkInformation * | GetInputPortInformation (int port) |
| Get the information object associated with an input port. More...
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vtkInformation * | GetOutputPortInformation (int port) |
| Get the information object associated with an output port. More...
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virtual vtkInformation * | GetInformation () |
| Set/Get the information object associated with this algorithm. More...
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virtual void | SetInformation (vtkInformation *) |
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int | GetNumberOfInputPorts () |
| Get the number of input ports used by the algorithm. More...
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int | GetNumberOfOutputPorts () |
| Get the number of output ports provided by the algorithm. More...
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void | Register (vtkObjectBase *o) override |
| Participate in garbage collection. More...
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void | UnRegister (vtkObjectBase *o) override |
| Decrease the reference count (release by another object). More...
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virtual void | SetAbortExecute (vtkTypeBool) |
| Set/Get the AbortExecute flag for the process object. More...
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virtual vtkTypeBool | GetAbortExecute () |
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virtual void | AbortExecuteOn () |
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virtual void | AbortExecuteOff () |
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virtual void | SetProgress (double) |
| Set/Get the execution progress of a process object. More...
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virtual double | GetProgress () |
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void | UpdateProgress (double amount) |
| Update the progress of the process object. More...
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void | SetProgressText (const char *ptext) |
| Set the current text message associated with the progress state. More...
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virtual char * | GetProgressText () |
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virtual unsigned long | GetErrorCode () |
| The error code contains a possible error that occurred while reading or writing the file. More...
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virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name) |
| Set the input data arrays that this algorithm will process. More...
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virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType) |
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virtual void | SetInputArrayToProcess (int idx, vtkInformation *info) |
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virtual void | SetInputArrayToProcess (int idx, int port, int connection, const char *fieldAssociation, const char *attributeTypeorName) |
| String based versions of SetInputArrayToProcess(). More...
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vtkInformation * | GetInputArrayInformation (int idx) |
| Get the info object for the specified input array to this algorithm. More...
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void | RemoveAllInputs () |
| Remove all the input data. More...
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vtkDataObject * | GetOutputDataObject (int port) |
| Get the data object that will contain the algorithm output for the given port. More...
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vtkDataObject * | GetInputDataObject (int port, int connection) |
| Get the data object that will contain the algorithm input for the given port and given connection. More...
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virtual void | SetInputConnection (int port, vtkAlgorithmOutput *input) |
| Set the connection for the given input port index. More...
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virtual void | SetInputConnection (vtkAlgorithmOutput *input) |
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virtual void | AddInputConnection (int port, vtkAlgorithmOutput *input) |
| Add a connection to the given input port index. More...
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virtual void | AddInputConnection (vtkAlgorithmOutput *input) |
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virtual void | RemoveInputConnection (int port, vtkAlgorithmOutput *input) |
| Remove a connection from the given input port index. More...
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virtual void | RemoveInputConnection (int port, int idx) |
| Remove a connection given by index idx. More...
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virtual void | RemoveAllInputConnections (int port) |
| Removes all input connections. More...
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virtual void | SetInputDataObject (int port, vtkDataObject *data) |
| Sets the data-object as an input on the given port index. More...
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virtual void | SetInputDataObject (vtkDataObject *data) |
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virtual void | AddInputDataObject (int port, vtkDataObject *data) |
| Add the data-object as an input to this given port. More...
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virtual void | AddInputDataObject (vtkDataObject *data) |
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vtkAlgorithmOutput * | GetOutputPort (int index) |
| Get a proxy object corresponding to the given output port of this algorithm. More...
|
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vtkAlgorithmOutput * | GetOutputPort () |
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int | GetNumberOfInputConnections (int port) |
| Get the number of inputs currently connected to a port. More...
|
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int | GetTotalNumberOfInputConnections () |
| Get the total number of inputs for this algorithm. More...
|
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vtkAlgorithmOutput * | GetInputConnection (int port, int index) |
| Get the algorithm output port connected to an input port. More...
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vtkAlgorithm * | GetInputAlgorithm (int port, int index, int &algPort) |
| Returns the algorithm and the output port index of that algorithm connected to a port-index pair. More...
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vtkAlgorithm * | GetInputAlgorithm (int port, int index) |
| Returns the algorithm connected to a port-index pair. More...
|
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vtkAlgorithm * | GetInputAlgorithm () |
| Equivalent to GetInputAlgorithm(0, 0). More...
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vtkExecutive * | GetInputExecutive (int port, int index) |
| Returns the executive associated with a particular input connection. More...
|
|
vtkExecutive * | GetInputExecutive () |
| Equivalent to GetInputExecutive(0, 0) More...
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vtkInformation * | GetInputInformation (int port, int index) |
| Return the information object that is associated with a particular input connection. More...
|
|
vtkInformation * | GetInputInformation () |
| Equivalent to GetInputInformation(0, 0) More...
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vtkInformation * | GetOutputInformation (int port) |
| Return the information object that is associated with a particular output port. More...
|
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virtual void | Update (int port) |
| Bring this algorithm's outputs up-to-date. More...
|
|
virtual void | Update () |
|
virtual int | Update (int port, vtkInformationVector *requests) |
| This method enables the passing of data requests to the algorithm to be used during execution (in addition to bringing a particular port up-to-date). More...
|
|
virtual int | Update (vtkInformation *requests) |
| Convenience method to update an algorithm after passing requests to its first output port. More...
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virtual int | UpdatePiece (int piece, int numPieces, int ghostLevels, const int extents[6]=nullptr) |
| Convenience method to update an algorithm after passing requests to its first output port. More...
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|
virtual int | UpdateExtent (const int extents[6]) |
| Convenience method to update an algorithm after passing requests to its first output port. More...
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|
virtual int | UpdateTimeStep (double time, int piece=-1, int numPieces=1, int ghostLevels=0, const int extents[6]=nullptr) |
| Convenience method to update an algorithm after passing requests to its first output port. More...
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virtual void | UpdateInformation () |
| Bring the algorithm's information up-to-date. More...
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virtual void | UpdateDataObject () |
| Create output object(s). More...
|
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virtual void | PropagateUpdateExtent () |
| Propagate meta-data upstream. More...
|
|
virtual void | UpdateWholeExtent () |
| Bring this algorithm's outputs up-to-date. More...
|
|
void | ConvertTotalInputToPortConnection (int ind, int &port, int &conn) |
| Convenience routine to convert from a linear ordering of input connections to a port/connection pair. More...
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virtual void | SetReleaseDataFlag (int) |
| Turn release data flag on or off for all output ports. More...
|
|
virtual int | GetReleaseDataFlag () |
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void | ReleaseDataFlagOn () |
|
void | ReleaseDataFlagOff () |
|
int | UpdateExtentIsEmpty (vtkInformation *pinfo, vtkDataObject *output) |
| This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0. More...
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int | UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType) |
|
int * | GetUpdateExtent () |
| These functions return the update extent for output ports that use 3D extents. More...
|
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int * | GetUpdateExtent (int port) |
|
void | GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
|
void | GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
|
void | GetUpdateExtent (int extent[6]) |
|
void | GetUpdateExtent (int port, int extent[6]) |
|
int | GetUpdatePiece () |
| These functions return the update extent for output ports that use piece extents. More...
|
|
int | GetUpdatePiece (int port) |
|
int | GetUpdateNumberOfPieces () |
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int | GetUpdateNumberOfPieces (int port) |
|
int | GetUpdateGhostLevel () |
|
int | GetUpdateGhostLevel (int port) |
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void | SetProgressObserver (vtkProgressObserver *) |
| If an ProgressObserver is set, the algorithm will report progress through it rather than directly. More...
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virtual vtkProgressObserver * | GetProgressObserver () |
|
| vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
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virtual void | DebugOn () |
| Turn debugging output on. More...
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virtual void | DebugOff () |
| Turn debugging output off. More...
|
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bool | GetDebug () |
| Get the value of the debug flag. More...
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void | SetDebug (bool debugFlag) |
| Set the value of the debug flag. More...
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virtual void | Modified () |
| Update the modification time for this object. More...
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unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
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vtkCommand * | GetCommand (unsigned long tag) |
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void | RemoveObserver (vtkCommand *) |
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void | RemoveObservers (unsigned long event, vtkCommand *) |
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void | RemoveObservers (const char *event, vtkCommand *) |
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vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
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vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
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void | RemoveObserver (unsigned long tag) |
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void | RemoveObservers (unsigned long event) |
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void | RemoveObservers (const char *event) |
|
void | RemoveAllObservers () |
|
vtkTypeBool | HasObserver (unsigned long event) |
|
vtkTypeBool | HasObserver (const char *event) |
|
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...
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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) |
|
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...
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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. More...
|
|
int | InvokeEvent (const char *event, void *callData) |
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int | InvokeEvent (unsigned long event) |
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int | InvokeEvent (const char *event) |
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const char * | GetClassName () const |
| Return the class name as a string. More...
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virtual void | Delete () |
| Delete a VTK object. More...
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virtual void | FastDelete () |
| Delete a reference to this object. More...
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void | InitializeObjectBase () |
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void | Print (ostream &os) |
| Print an object to an ostream. More...
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virtual void | PrintHeader (ostream &os, vtkIndent indent) |
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virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
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int | GetReferenceCount () |
| Return the current reference count of this object. More...
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void | SetReferenceCount (int) |
| Sets the reference count. More...
|
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void | PrintRevisions (ostream &) |
| Legacy. More...
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|
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virtual vtkObjectBase * | NewInstanceInternal () const |
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| vtkSPHInterpolator () |
|
| ~vtkSPHInterpolator () override |
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int | RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override |
| This is called within ProcessRequest when a request asks the algorithm to do its work. More...
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int | RequestInformation (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override |
| This is called within ProcessRequest when a request asks for Information. More...
|
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int | RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override |
| This is called within ProcessRequest when each filter in the pipeline decides what portion of its input is needed to create the portion of its output that the downstream filter asks for. More...
|
|
virtual void | Probe (vtkDataSet *input, vtkDataSet *source, vtkDataSet *output) |
| Virtual for specialized subclass(es) More...
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virtual void | PassAttributeData (vtkDataSet *input, vtkDataObject *source, vtkDataSet *output) |
| Call at end of RequestData() to pass attribute data respecting the PassCellArrays, PassPointArrays, PassFieldArrays flags. More...
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|
| vtkDataSetAlgorithm () |
|
| ~vtkDataSetAlgorithm () override |
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virtual int | RequestDataObject (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) |
| This is called within ProcessRequest to when a request asks the algorithm to create empty output data objects. More...
|
|
int | FillOutputPortInformation (int port, vtkInformation *info) override |
| Fill the output port information objects for this algorithm. More...
|
|
int | FillInputPortInformation (int port, vtkInformation *info) override |
| Fill the input port information objects for this algorithm. More...
|
|
vtkDataObject * | GetInput (int port) |
|
| vtkAlgorithm () |
|
| ~vtkAlgorithm () override |
|
virtual void | SetNumberOfInputPorts (int n) |
| Set the number of input ports used by the algorithm. More...
|
|
virtual void | SetNumberOfOutputPorts (int n) |
| Set the number of output ports provided by the algorithm. More...
|
|
int | InputPortIndexInRange (int index, const char *action) |
|
int | OutputPortIndexInRange (int index, const char *action) |
|
int | GetInputArrayAssociation (int idx, vtkInformationVector **inputVector) |
| Get the assocition of the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
|
|
int | GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature. More...
|
|
int | GetInputArrayAssociation (int idx, vtkDataObject *input) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector) |
| Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature. More...
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input, int &association) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector) |
| Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
|
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature. More...
|
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association) |
|
vtkInformation * | GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector) |
| This method takes in an index (as specified in SetInputArrayToProcess) and a pipeline information vector. More...
|
|
virtual vtkExecutive * | CreateDefaultExecutive () |
| Create a default executive. More...
|
|
virtual void | SetErrorCode (unsigned long) |
| The error code contains a possible error that occurred while reading or writing the file. More...
|
|
void | ReportReferences (vtkGarbageCollector *) override |
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virtual void | SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input) |
| Replace the Nth connection on the given input port. More...
|
|
virtual void | SetNumberOfInputConnections (int port, int n) |
| Set the number of input connections on the given input port. More...
|
|
void | SetInputDataInternal (int port, vtkDataObject *input) |
| These methods are used by subclasses to implement methods to set data objects directly as input. More...
|
|
void | AddInputDataInternal (int port, vtkDataObject *input) |
|
| vtkObject () |
|
| ~vtkObject () override |
|
void | RegisterInternal (vtkObjectBase *, vtkTypeBool check) override |
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void | UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override |
|
void | InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr) |
| These methods allow a command to exclusively grab all events. More...
|
|
void | InternalReleaseFocus () |
|
| vtkObjectBase () |
|
virtual | ~vtkObjectBase () |
|
virtual void | CollectRevisions (ostream &) |
|
| vtkObjectBase (const vtkObjectBase &) |
|
void | operator= (const vtkObjectBase &) |
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interpolate over point cloud using SPH kernels
This filter uses SPH (smooth particle hydrodynamics) kernels to interpolate a data source onto an input structure. For example, while the data source is a set of particles, the data from these particles can be interpolated onto an input object such as a line, plane or volume. Then the output (which consists of the input structure plus interpolated data) can then be visualized using classical visualization techniques such as isocontouring, slicing, heat maps and so on.
To use this filter, besides setting the input P and source Pc, specify a point locator (which accelerates queries about points and their neighbors) and an interpolation kernel (a subclass of vtkSPHKernel). In addition, the name of the source's density and mass arrays can optionally be provided; however if not provided then the local volume is computed from the kernel's spatial step. Finally, a cutoff distance array can optionall be provided when the local neighborhood around each point varies. The cutoff distance defines a local neighborhood in which the points in that neighborhood are used to interpolate values. If not provided, then the cutoff distance is computed from the spatial step size times the cutoff factor (see vtkSPHKernel).
Other options to the filter include specifying which data attributes to interpolate from the source. By default, all data attributes contained in the source are interpolated. However, by adding array names to the exclusion list, these arrays will not be interpolated. Also, it is possible to use a SPH derivative formulation to interpolate from the source data attributes. This requires adding arrays (by name) to the derivative list, in which case the derivative formulation will be applied to create a new output array named "X_deriv" where X is the name of a source point attribute array.
- Warning
- This class has been threaded with vtkSMPTools. Using TBB or other non-sequential type (set in the CMake variable VTK_SMP_IMPLEMENTATION_TYPE) may improve performance significantly.
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For widely spaced points in Pc, or when p is located outside the bounding region of Pc, the interpolation may behave badly and the interpolation process will adapt as necessary to produce output. For example, if the N closest points within R are requested to interpolate p, if N=0 then the interpolation will switch to a different strategy (which can be controlled as in the NullPointsStrategy).
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For more information and technical reference, 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
- vtkPointInterpolator vtkSPHKernel vtkSPHQuinticKernel
- Tests:
- vtkSPHInterpolator (Tests)
Definition at line 96 of file vtkSPHInterpolator.h.