|
| virtual vtkTypeBool | IsA (const char *type) |
| | Return 1 if this class is the same type of (or a subclass of) the named class.
|
| |
| vtkWindowedSincPolyDataFilter * | NewInstance () const |
| |
| void | PrintSelf (ostream &os, vtkIndent indent) override |
| | Methods invoked by print to print information about the object including superclasses.
|
| |
|
| virtual void | SetNumberOfIterations (int) |
| | Specify the number of iterations (i.e., the degree of the polynomial approximating the windowed sinc function).
|
| |
| virtual int | GetNumberOfIterations () |
| | Specify the number of iterations (i.e., the degree of the polynomial approximating the windowed sinc function).
|
| |
|
| virtual void | SetPassBand (double) |
| | Set the passband value for the windowed sinc filter.
|
| |
| virtual double | GetPassBand () |
| | Set the passband value for the windowed sinc filter.
|
| |
|
| virtual void | SetNormalizeCoordinates (vtkTypeBool) |
| | Turn on/off coordinate normalization.
|
| |
| virtual vtkTypeBool | GetNormalizeCoordinates () |
| | Turn on/off coordinate normalization.
|
| |
| virtual void | NormalizeCoordinatesOn () |
| | Turn on/off coordinate normalization.
|
| |
| virtual void | NormalizeCoordinatesOff () |
| | Turn on/off coordinate normalization.
|
| |
|
| virtual void | SetFeatureEdgeSmoothing (vtkTypeBool) |
| | Turn on/off smoothing points along sharp interior edges.
|
| |
| virtual vtkTypeBool | GetFeatureEdgeSmoothing () |
| | Turn on/off smoothing points along sharp interior edges.
|
| |
| virtual void | FeatureEdgeSmoothingOn () |
| | Turn on/off smoothing points along sharp interior edges.
|
| |
| virtual void | FeatureEdgeSmoothingOff () |
| | Turn on/off smoothing points along sharp interior edges.
|
| |
|
| virtual void | SetFeatureAngle (double) |
| | Specify the feature angle for sharp edge identification.
|
| |
| virtual double | GetFeatureAngle () |
| | Specify the feature angle for sharp edge identification.
|
| |
|
| virtual void | SetEdgeAngle (double) |
| | Specify the edge angle to control smoothing along edges (either interior or boundary).
|
| |
| virtual double | GetEdgeAngle () |
| | Specify the edge angle to control smoothing along edges (either interior or boundary).
|
| |
|
| virtual void | SetBoundarySmoothing (vtkTypeBool) |
| | Turn on/off the smoothing of points on the boundary of the mesh.
|
| |
| virtual vtkTypeBool | GetBoundarySmoothing () |
| | Turn on/off the smoothing of points on the boundary of the mesh.
|
| |
| virtual void | BoundarySmoothingOn () |
| | Turn on/off the smoothing of points on the boundary of the mesh.
|
| |
| virtual void | BoundarySmoothingOff () |
| | Turn on/off the smoothing of points on the boundary of the mesh.
|
| |
|
| virtual void | SetNonManifoldSmoothing (vtkTypeBool) |
| | Smooth non-manifold points.
|
| |
| virtual vtkTypeBool | GetNonManifoldSmoothing () |
| | Smooth non-manifold points.
|
| |
| virtual void | NonManifoldSmoothingOn () |
| | Smooth non-manifold points.
|
| |
| virtual void | NonManifoldSmoothingOff () |
| | Smooth non-manifold points.
|
| |
|
| virtual void | SetGenerateErrorScalars (vtkTypeBool) |
| | Turn on/off the generation of scalar distance values.
|
| |
| virtual vtkTypeBool | GetGenerateErrorScalars () |
| | Turn on/off the generation of scalar distance values.
|
| |
| virtual void | GenerateErrorScalarsOn () |
| | Turn on/off the generation of scalar distance values.
|
| |
| virtual void | GenerateErrorScalarsOff () |
| | Turn on/off the generation of scalar distance values.
|
| |
|
| virtual void | SetGenerateErrorVectors (vtkTypeBool) |
| | Turn on/off the generation of error vectors.
|
| |
| virtual vtkTypeBool | GetGenerateErrorVectors () |
| | Turn on/off the generation of error vectors.
|
| |
| virtual void | GenerateErrorVectorsOn () |
| | Turn on/off the generation of error vectors.
|
| |
| virtual void | GenerateErrorVectorsOff () |
| | Turn on/off the generation of error vectors.
|
| |
| virtual vtkTypeBool | IsA (const char *type) |
| | Return 1 if this class is the same type of (or a subclass of) the named class.
|
| |
| vtkPolyDataAlgorithm * | NewInstance () const |
| |
| void | PrintSelf (ostream &os, vtkIndent indent) override |
| | Methods invoked by print to print information about the object including superclasses.
|
| |
| vtkTypeBool | ProcessRequest (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override |
| | see vtkAlgorithm for details
|
| |
| vtkDataObject * | GetInput () |
| |
| vtkDataObject * | GetInput (int port) |
| |
| vtkPolyData * | GetPolyDataInput (int port) |
| |
| vtkPolyData * | GetOutput () |
| | Get the output data object for a port on this algorithm.
|
| |
| vtkPolyData * | GetOutput (int) |
| | Get the output data object for a port on this algorithm.
|
| |
| virtual void | SetOutput (vtkDataObject *d) |
| | Get the output data object for a port on this algorithm.
|
| |
| void | SetInputData (vtkDataObject *) |
| | Assign a data object as input.
|
| |
| void | SetInputData (int, vtkDataObject *) |
| | Assign a data object as input.
|
| |
| void | AddInputData (vtkDataObject *) |
| | Assign a data object as input.
|
| |
| void | AddInputData (int, vtkDataObject *) |
| | Assign a data object as input.
|
| |
| virtual vtkTypeBool | IsA (const char *type) |
| | Return 1 if this class is the same type of (or a subclass of) the named class.
|
| |
| vtkAlgorithm * | NewInstance () const |
| |
| void | PrintSelf (ostream &os, vtkIndent indent) override |
| | Methods invoked by print to print information about the object including superclasses.
|
| |
| int | HasExecutive () |
| | Check whether this algorithm has an assigned executive.
|
| |
| vtkExecutive * | GetExecutive () |
| | Get this algorithm's executive.
|
| |
| virtual void | SetExecutive (vtkExecutive *executive) |
| | Set this algorithm's executive.
|
| |
| virtual vtkTypeBool | ProcessRequest (vtkInformation *request, vtkInformationVector **inInfo, vtkInformationVector *outInfo) |
| | Upstream/Downstream requests form the generalized interface through which executives invoke a algorithm's functionality.
|
| |
| vtkTypeBool | ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo) |
| | Version of ProcessRequest() that is wrapped.
|
| |
| 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.
|
| |
| 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.
|
| |
| vtkInformation * | GetInputPortInformation (int port) |
| | Get the information object associated with an input port.
|
| |
| vtkInformation * | GetOutputPortInformation (int port) |
| | Get the information object associated with an output port.
|
| |
| int | GetNumberOfInputPorts () |
| | Get the number of input ports used by the algorithm.
|
| |
| int | GetNumberOfOutputPorts () |
| | Get the number of output ports provided by the algorithm.
|
| |
| void | SetProgress (double) |
| | SetProgress is deprecated.
|
| |
| void | UpdateProgress (double amount) |
| | Update the progress of the process object.
|
| |
| virtual void | SetInputArrayToProcess (int idx, int port, int connection, const char *fieldAssociation, const char *attributeTypeorName) |
| | String based versions of SetInputArrayToProcess().
|
| |
| vtkInformation * | GetInputArrayInformation (int idx) |
| | Get the info object for the specified input array to this algorithm.
|
| |
| void | RemoveAllInputs () |
| | Remove all the input data.
|
| |
| vtkDataObject * | GetOutputDataObject (int port) |
| | Get the data object that will contain the algorithm output for the given port.
|
| |
| vtkDataObject * | GetInputDataObject (int port, int connection) |
| | Get the data object that will contain the algorithm input for the given port and given connection.
|
| |
| virtual void | RemoveInputConnection (int port, vtkAlgorithmOutput *input) |
| | Remove a connection from the given input port index.
|
| |
| virtual void | RemoveInputConnection (int port, int idx) |
| | Remove a connection given by index idx.
|
| |
| virtual void | RemoveAllInputConnections (int port) |
| | Removes all input connections.
|
| |
| virtual void | SetInputDataObject (int port, vtkDataObject *data) |
| | Sets the data-object as an input on the given port index.
|
| |
| virtual void | SetInputDataObject (vtkDataObject *data) |
| |
| virtual void | AddInputDataObject (int port, vtkDataObject *data) |
| | Add the data-object as an input to this given port.
|
| |
| virtual void | AddInputDataObject (vtkDataObject *data) |
| |
| vtkAlgorithmOutput * | GetOutputPort (int index) |
| | Get a proxy object corresponding to the given output port of this algorithm.
|
| |
| vtkAlgorithmOutput * | GetOutputPort () |
| |
| int | GetNumberOfInputConnections (int port) |
| | Get the number of inputs currently connected to a port.
|
| |
| int | GetTotalNumberOfInputConnections () |
| | Get the total number of inputs for this algorithm.
|
| |
| vtkAlgorithmOutput * | GetInputConnection (int port, int index) |
| | Get the algorithm output port connected to an input port.
|
| |
| 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.
|
| |
| vtkAlgorithm * | GetInputAlgorithm (int port, int index) |
| | Returns the algorithm connected to a port-index pair.
|
| |
| vtkAlgorithm * | GetInputAlgorithm () |
| | Equivalent to GetInputAlgorithm(0, 0).
|
| |
| vtkExecutive * | GetInputExecutive (int port, int index) |
| | Returns the executive associated with a particular input connection.
|
| |
| vtkExecutive * | GetInputExecutive () |
| | Equivalent to GetInputExecutive(0, 0)
|
| |
| vtkInformation * | GetInputInformation (int port, int index) |
| | Return the information object that is associated with a particular input connection.
|
| |
| vtkInformation * | GetInputInformation () |
| | Equivalent to GetInputInformation(0, 0)
|
| |
| vtkInformation * | GetOutputInformation (int port) |
| | Return the information object that is associated with a particular output port.
|
| |
| virtual vtkTypeBool | 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).
|
| |
| virtual vtkTypeBool | Update (vtkInformation *requests) |
| | Convenience method to update an algorithm after passing requests to its first output port.
|
| |
| 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.
|
| |
| virtual int | UpdateExtent (const int extents[6]) |
| | Convenience method to update an algorithm after passing requests to its first output port.
|
| |
| 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.
|
| |
| virtual void | UpdateInformation () |
| | Bring the algorithm's information up-to-date.
|
| |
| virtual void | UpdateDataObject () |
| | Create output object(s).
|
| |
| virtual void | PropagateUpdateExtent () |
| | Propagate meta-data upstream.
|
| |
| virtual void | UpdateWholeExtent () |
| | Bring this algorithm's outputs up-to-date.
|
| |
| void | ConvertTotalInputToPortConnection (int ind, int &port, int &conn) |
| | Convenience routine to convert from a linear ordering of input connections to a port/connection pair.
|
| |
| virtual vtkInformation * | GetInformation () |
| | Set/Get the information object associated with this algorithm.
|
| |
| virtual void | SetInformation (vtkInformation *) |
| | Set/Get the information object associated with this algorithm.
|
| |
| void | Register (vtkObjectBase *o) override |
| | Participate in garbage collection.
|
| |
| void | UnRegister (vtkObjectBase *o) override |
| | Participate in garbage collection.
|
| |
| virtual void | SetAbortExecute (vtkTypeBool) |
| | Set/Get the AbortExecute flag for the process object.
|
| |
| virtual vtkTypeBool | GetAbortExecute () |
| | Set/Get the AbortExecute flag for the process object.
|
| |
| virtual void | AbortExecuteOn () |
| | Set/Get the AbortExecute flag for the process object.
|
| |
| virtual void | AbortExecuteOff () |
| | Set/Get the AbortExecute flag for the process object.
|
| |
| virtual double | GetProgress () |
| | Get the execution progress of a process object.
|
| |
| void | SetProgressShiftScale (double shift, double scale) |
| | Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called.
|
| |
| virtual double | GetProgressShift () |
| | Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called.
|
| |
| virtual double | GetProgressScale () |
| | Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called.
|
| |
| void | SetProgressText (const char *ptext) |
| | Set the current text message associated with the progress state.
|
| |
| virtual char * | GetProgressText () |
| | Set the current text message associated with the progress state.
|
| |
| virtual unsigned long | GetErrorCode () |
| | The error code contains a possible error that occurred while reading or writing the file.
|
| |
| virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name) |
| | Set the input data arrays that this algorithm will process.
|
| |
| virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType) |
| | Set the input data arrays that this algorithm will process.
|
| |
| virtual void | SetInputArrayToProcess (int idx, vtkInformation *info) |
| | Set the input data arrays that this algorithm will process.
|
| |
| virtual void | SetInputConnection (int port, vtkAlgorithmOutput *input) |
| | Set the connection for the given input port index.
|
| |
| virtual void | SetInputConnection (vtkAlgorithmOutput *input) |
| | Set the connection for the given input port index.
|
| |
| virtual void | AddInputConnection (int port, vtkAlgorithmOutput *input) |
| | Add a connection to the given input port index.
|
| |
| virtual void | AddInputConnection (vtkAlgorithmOutput *input) |
| | Add a connection to the given input port index.
|
| |
| virtual void | Update (int port) |
| | Bring this algorithm's outputs up-to-date.
|
| |
| virtual void | Update () |
| | Bring this algorithm's outputs up-to-date.
|
| |
| virtual void | SetReleaseDataFlag (int) |
| | Turn release data flag on or off for all output ports.
|
| |
| virtual int | GetReleaseDataFlag () |
| | Turn release data flag on or off for all output ports.
|
| |
| void | ReleaseDataFlagOn () |
| | Turn release data flag on or off for all output ports.
|
| |
| void | ReleaseDataFlagOff () |
| | Turn release data flag on or off for all output ports.
|
| |
| 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.
|
| |
| int | UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType) |
| | 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.
|
| |
| int * | GetUpdateExtent () |
| | These functions return the update extent for output ports that use 3D extents.
|
| |
| int * | GetUpdateExtent (int port) |
| | These functions return the update extent for output ports that use 3D extents.
|
| |
| void | GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
| | These functions return the update extent for output ports that use 3D extents.
|
| |
| void | GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
| | These functions return the update extent for output ports that use 3D extents.
|
| |
| void | GetUpdateExtent (int extent[6]) |
| | These functions return the update extent for output ports that use 3D extents.
|
| |
| void | GetUpdateExtent (int port, int extent[6]) |
| | These functions return the update extent for output ports that use 3D extents.
|
| |
| int | GetUpdatePiece () |
| | These functions return the update extent for output ports that use piece extents.
|
| |
| int | GetUpdatePiece (int port) |
| | These functions return the update extent for output ports that use piece extents.
|
| |
| int | GetUpdateNumberOfPieces () |
| | These functions return the update extent for output ports that use piece extents.
|
| |
| int | GetUpdateNumberOfPieces (int port) |
| | These functions return the update extent for output ports that use piece extents.
|
| |
| int | GetUpdateGhostLevel () |
| | These functions return the update extent for output ports that use piece extents.
|
| |
| int | GetUpdateGhostLevel (int port) |
| | These functions return the update extent for output ports that use piece extents.
|
| |
| void | SetProgressObserver (vtkProgressObserver *) |
| | If an ProgressObserver is set, the algorithm will report progress through it rather than directly.
|
| |
| virtual vtkProgressObserver * | GetProgressObserver () |
| | If an ProgressObserver is set, the algorithm will report progress through it rather than directly.
|
| |
| | vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
| |
| virtual void | DebugOn () |
| | Turn debugging output on.
|
| |
| virtual void | DebugOff () |
| | Turn debugging output off.
|
| |
| bool | GetDebug () |
| | Get the value of the debug flag.
|
| |
| void | SetDebug (bool debugFlag) |
| | Set the value of the debug flag.
|
| |
| virtual void | Modified () |
| | Update the modification time for this object.
|
| |
| virtual vtkMTimeType | GetMTime () |
| | Return this object's modified time.
|
| |
| void | PrintSelf (ostream &os, vtkIndent indent) override |
| | Methods invoked by print to print information about the object including superclasses.
|
| |
| 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.
|
| |
| unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
| |
| vtkCommand * | GetCommand (unsigned long tag) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
| |
| void | RemoveObserver (vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
| |
| void | RemoveObservers (unsigned long event, vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
| |
| void | RemoveObservers (const char *event, vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
| |
| vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
| |
| 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.
|
| |
| 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.
|
| |
| 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.
|
| |
| int | InvokeEvent (unsigned long event, void *callData) |
| | This method invokes an event and return whether the event was aborted or not.
|
| |
| int | InvokeEvent (const char *event, void *callData) |
| | This method invokes an event and return whether the event was aborted or not.
|
| |
| const char * | GetClassName () const |
| | Return the class name as a string.
|
| |
| virtual vtkTypeBool | IsA (const char *name) |
| | Return 1 if this class is the same type of (or a subclass of) the named class.
|
| |
| 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).
|
| |
| virtual void | Delete () |
| | Delete a VTK object.
|
| |
| virtual void | FastDelete () |
| | Delete a reference to this object.
|
| |
| void | InitializeObjectBase () |
| |
| void | Print (ostream &os) |
| | Print an object to an ostream.
|
| |
| virtual void | Register (vtkObjectBase *o) |
| | Increase the reference count (mark as used by another object).
|
| |
| virtual void | UnRegister (vtkObjectBase *o) |
| | Decrease the reference count (release by another object).
|
| |
| int | GetReferenceCount () |
| | Return the current reference count of this object.
|
| |
| void | SetReferenceCount (int) |
| | Sets the reference count.
|
| |
| bool | GetIsInMemkind () const |
| | A local state flag that remembers whether this object lives in the normal or extended memory space.
|
| |
| virtual void | PrintHeader (ostream &os, vtkIndent indent) |
| | Methods invoked by print to print information about the object including superclasses.
|
| |
| virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
| | Methods invoked by print to print information about the object including superclasses.
|
| |
|
| virtual vtkObjectBase * | NewInstanceInternal () const |
| |
| | vtkWindowedSincPolyDataFilter () |
| |
| | ~vtkWindowedSincPolyDataFilter () override=default |
| |
| int | RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override |
| | This is called by the superclass.
|
| |
| virtual vtkObjectBase * | NewInstanceInternal () const |
| |
| | vtkPolyDataAlgorithm () |
| |
| | ~vtkPolyDataAlgorithm () override |
| |
| virtual int | RequestInformation (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) |
| |
| virtual int | RequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) |
| | This is called by the superclass.
|
| |
| virtual int | RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
| | This is called by the superclass.
|
| |
| int | FillOutputPortInformation (int port, vtkInformation *info) override |
| | Fill the output port information objects for this algorithm.
|
| |
| int | FillInputPortInformation (int port, vtkInformation *info) override |
| | Fill the input port information objects for this algorithm.
|
| |
| virtual vtkObjectBase * | NewInstanceInternal () const |
| |
| | vtkAlgorithm () |
| |
| | ~vtkAlgorithm () override |
| |
| virtual int | FillInputPortInformation (int port, vtkInformation *info) |
| | Fill the input port information objects for this algorithm.
|
| |
| virtual int | FillOutputPortInformation (int port, vtkInformation *info) |
| | Fill the output port information objects for this algorithm.
|
| |
| virtual void | SetNumberOfInputPorts (int n) |
| | Set the number of input ports used by the algorithm.
|
| |
| virtual void | SetNumberOfOutputPorts (int n) |
| | Set the number of output ports provided by the algorithm.
|
| |
| 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.
|
| |
| vtkInformation * | GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector) |
| | This method takes in an index (as specified in SetInputArrayToProcess) and a pipeline information vector.
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| virtual vtkExecutive * | CreateDefaultExecutive () |
| | Create a default executive.
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| 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.
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| virtual void | SetNumberOfInputConnections (int port, int n) |
| | Set the number of input connections on the given input port.
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| void | SetInputDataInternal (int port, vtkDataObject *input) |
| | These methods are used by subclasses to implement methods to set data objects directly as input.
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| void | AddInputDataInternal (int port, vtkDataObject *input) |
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| int | GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector) |
| | Filters that have multiple connections on one port can use this signature.
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| int | GetInputArrayAssociation (int idx, vtkDataObject *input) |
| | Filters that have multiple connections on one port can use this signature.
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| 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.
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| vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
| | Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
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| vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
| | Filters that have multiple connections on one port can use this signature.
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| vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
| | Filters that have multiple connections on one port can use this signature.
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| vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input) |
| | Filters that have multiple connections on one port can use this signature.
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| vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input, int &association) |
| | Filters that have multiple connections on one port can use this signature.
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| 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.
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| vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
| | Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
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| vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
| | Filters that have multiple connections on one port can use this signature.
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| vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
| | Filters that have multiple connections on one port can use this signature.
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| vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input) |
| | Filters that have multiple connections on one port can use this signature.
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| vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association) |
| | Filters that have multiple connections on one port can use this signature.
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| virtual void | SetErrorCode (unsigned long) |
| | The error code contains a possible error that occurred while reading or writing the file.
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| | vtkObject () |
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| | ~vtkObject () override |
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| void | RegisterInternal (vtkObjectBase *, vtkTypeBool check) override |
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| void | UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override |
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| void | InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr) |
| | These methods allow a command to exclusively grab all events.
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| void | InternalReleaseFocus () |
| | These methods allow a command to exclusively grab all events.
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| | vtkObjectBase () |
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| virtual | ~vtkObjectBase () |
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| virtual void | RegisterInternal (vtkObjectBase *, vtkTypeBool check) |
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| virtual void | UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) |
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| virtual void | ReportReferences (vtkGarbageCollector *) |
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| | vtkObjectBase (const vtkObjectBase &) |
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| void | operator= (const vtkObjectBase &) |
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adjust point positions using a windowed sinc function interpolation kernel
vtkWindowedSincPolyDataFiler adjust point coordinate using a windowed sinc function interpolation kernel. The effect is to "relax" the mesh, making the cells better shaped and the vertices more evenly distributed. Note that this filter operates the lines, polygons, and triangle strips composing an instance of vtkPolyData. Vertex or poly-vertex cells are never modified.
The algorithm proceeds as follows. For each vertex v, a topological and geometric analysis is performed to determine which vertices are connected to v, and which cells are connected to v. Then, a connectivity array is constructed for each vertex. (The connectivity array is a list of lists of vertices that directly attach to each vertex.) Next, an iteration phase begins over all vertices. For each vertex v, the coordinates of v are modified using a windowed sinc function interpolation kernel. Taubin describes this methodology is the IBM tech report RC-20404 (#90237, dated 3/12/96) "Optimal Surface Smoothing as Filter Design" G. Taubin, T. Zhang and G. Golub. (Zhang and Golub are at Stanford University.)
This report discusses using standard signal processing low-pass filters (in particular windowed sinc functions) to smooth polyhedra. The transfer functions of the low-pass filters are approximated by Chebyshev polynomials. This facilitates applying the filters in an iterative diffusion process (as opposed to a kernel convolution). The more smoothing iterations applied, the higher the degree of polynomial approximating the low-pass filter transfer function. Each smoothing iteration, therefore, applies the next higher term of the Chebyshev filter approximation to the polyhedron. This decoupling of the filter into an iteratively applied polynomial is possible since the Chebyshev polynomials are orthogonal, i.e. increasing the order of the approximation to the filter transfer function does not alter the previously calculated coefficients for the low order terms.
Note: Care must be taken to avoid smoothing with too few iterations. A Chebyshev approximation with too few terms is an poor approximation. The first few smoothing iterations represent a severe scaling and translation of the data. Subsequent iterations cause the smoothed polyhedron to converge to the true location and scale of the object. We have attempted to protect against this by automatically adjusting the filter, effectively widening the pass band. This adjustment is only possible if the number of iterations is greater than 1. Note that this sacrifices some degree of smoothing for model integrity. For those interested, the filter is adjusted by searching for a value sigma such that the actual pass band is k_pb + sigma and such that the filter transfer function evaluates to unity at k_pb, i.e. f(k_pb) = 1
To improve the numerical stability of the solution and minimize the scaling the translation effects, the algorithm can translate and scale the position coordinates to within the unit cube [-1, 1], perform the smoothing, and translate and scale the position coordinates back to the original coordinate frame. This mode is controlled with the NormalizeCoordinatesOn() / NormalizeCoordinatesOff() methods. For legacy reasons, the default is NormalizeCoordinatesOff.
This implementation is currently limited to using an interpolation kernel based on Hamming windows. Other windows (such as Hann, Blackman, Kaiser, Lanczos, Gaussian, and exponential windows) could be used instead.
There are some special instance variables used to control the execution of this filter. (These ivars basically control what vertices can be smoothed, and the creation of the connectivity array.) The BoundarySmoothing ivar enables/disables the smoothing operation on vertices that are on the "boundary" of the mesh. A boundary vertex is one that is surrounded by a semi-cycle of polygons (or used by a single line).
Another important ivar is FeatureEdgeSmoothing. If this ivar is enabled, then interior vertices are classified as either "simple", "interior edge", or "fixed", and smoothed differently. (Interior vertices are manifold vertices surrounded by a cycle of polygons; or used by two line cells.) The classification is based on the number of feature edges attached to v. A feature edge occurs when the angle between the two surface normals of a polygon sharing an edge is greater than the FeatureAngle ivar. Then, vertices used by no feature edges are classified "simple", vertices used by exactly two feature edges are classified "interior edge", and all others are "fixed" vertices.
Once the classification is known, the vertices are smoothed differently. Corner (i.e., fixed) vertices are not smoothed at all. Simple vertices are smoothed as before . Interior edge vertices are smoothed only along their two connected edges, and only if the angle between the edges is less than the EdgeAngle ivar.
The total smoothing can be controlled by using two ivars. The NumberOfIterations determines the maximum number of smoothing passes. The NumberOfIterations corresponds to the degree of the polynomial that is used to approximate the windowed sinc function. Ten or twenty iterations is all the is usually necessary. Contrast this with vtkSmoothPolyDataFilter which usually requires 100 to 200 smoothing iterations. vtkSmoothPolyDataFilter is also not an approximation to an ideal low-pass filter, which can cause the geometry to shrink as the amount of smoothing increases.
The second ivar is the specification of the PassBand for the windowed sinc filter. By design, the PassBand is specified as a doubling point number between 0 and 2. Lower PassBand values produce more smoothing. A good default value for the PassBand is 0.1 (for those interested, the PassBand (and frequencies) for PolyData are based on the valence of the vertices, this limits all the frequency modes in a polyhedral mesh to between 0 and 2.)
There are two instance variables that control the generation of error data. If the ivar GenerateErrorScalars is on, then a scalar value indicating the distance of each vertex from its original position is computed. If the ivar GenerateErrorVectors is on, then a vector representing change in position is computed.
- Warning
- The smoothing operation reduces high frequency information in the geometry of the mesh. With excessive smoothing important details may be lost. Enabling FeatureEdgeSmoothing helps reduce this effect, but cannot entirely eliminate it.
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For maximum performance, do not enable BoundarySmoothing, NonManifoldSmoothing, or FeatureEdgeSmoothing. FeatureEdgeSmoothing is particularly expensive as it requires building topological links and computing local polygon normals which are relatively expensive operations. BoundarySmoothing and NonManifoldSmoothing have a modest impact on performance.
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This class has been threaded with vtkSMPTools. Using TBB or other non-sequential execution type (set in the CMake variable VTK_SMP_IMPLEMENTATION_TYPE) may improve performance significantly.
- See also
- Another useful documentation resource is this SIGGRAPH publication: Gabriel Taubin. "A Signal Processing Approach To Fair Surface Design".
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vtkSmoothPolyDataFilter vtkPointSmoothingFilter vtkDecimate vtkDecimatePro vtkQuadricDecimation
- Online Examples:
Definition at line 211 of file vtkWindowedSincPolyDataFilter.h.
Public Types inherited from vtkPolyDataAlgorithm
1.9.6
