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virtual int | 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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vtkDelaunay3D * | 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 | CreateDefaultLocator () |
| Create default locator. More...
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vtkUnstructuredGrid * | InitPointInsertion (double center[3], double length, vtkIdType numPts, vtkPoints *&pts) |
| This is a helper method used with InsertPoint() to create tetrahedronalizations of points. More...
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void | InsertPoint (vtkUnstructuredGrid *Mesh, vtkPoints *points, vtkIdType id, double x[3], vtkIdList *holeTetras) |
| This is a helper method used with InitPointInsertion() to create tetrahedronalizations of points. More...
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void | EndPointInsertion () |
| Invoke this method after all points have been inserted. More...
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vtkMTimeType | GetMTime () override |
| Return the MTime also considering the locator. More...
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virtual void | SetAlpha (double) |
| Specify alpha (or distance) value to control output of this filter. More...
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virtual double | GetAlpha () |
| Specify alpha (or distance) value to control output of this filter. More...
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virtual void | SetAlphaTets (int) |
| Boolean controls whether tetrahedra are output for non-zero alpha values. More...
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virtual int | GetAlphaTets () |
| Boolean controls whether tetrahedra are output for non-zero alpha values. More...
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virtual void | AlphaTetsOn () |
| Boolean controls whether tetrahedra are output for non-zero alpha values. More...
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virtual void | AlphaTetsOff () |
| Boolean controls whether tetrahedra are output for non-zero alpha values. More...
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|
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virtual void | SetAlphaTris (int) |
| Boolean controls whether triangles are output for non-zero alpha values. More...
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virtual int | GetAlphaTris () |
| Boolean controls whether triangles are output for non-zero alpha values. More...
|
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virtual void | AlphaTrisOn () |
| Boolean controls whether triangles are output for non-zero alpha values. More...
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virtual void | AlphaTrisOff () |
| Boolean controls whether triangles are output for non-zero alpha values. More...
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virtual void | SetAlphaLines (int) |
| Boolean controls whether lines are output for non-zero alpha values. More...
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virtual int | GetAlphaLines () |
| Boolean controls whether lines are output for non-zero alpha values. More...
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virtual void | AlphaLinesOn () |
| Boolean controls whether lines are output for non-zero alpha values. More...
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virtual void | AlphaLinesOff () |
| Boolean controls whether lines are output for non-zero alpha values. More...
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|
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virtual void | SetAlphaVerts (int) |
| Boolean controls whether vertices are output for non-zero alpha values. More...
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virtual int | GetAlphaVerts () |
| Boolean controls whether vertices are output for non-zero alpha values. More...
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virtual void | AlphaVertsOn () |
| Boolean controls whether vertices are output for non-zero alpha values. More...
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virtual void | AlphaVertsOff () |
| Boolean controls whether vertices are output for non-zero alpha values. More...
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virtual void | SetTolerance (double) |
| Specify a tolerance to control discarding of closely spaced points. More...
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virtual double | GetTolerance () |
| Specify a tolerance to control discarding of closely spaced points. More...
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virtual void | SetOffset (double) |
| Specify a multiplier to control the size of the initial, bounding Delaunay triangulation. More...
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virtual double | GetOffset () |
| Specify a multiplier to control the size of the initial, bounding Delaunay triangulation. More...
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virtual void | SetBoundingTriangulation (int) |
| Boolean controls whether bounding triangulation points (and associated triangles) are included in the output. More...
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virtual int | GetBoundingTriangulation () |
| Boolean controls whether bounding triangulation points (and associated triangles) are included in the output. More...
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virtual void | BoundingTriangulationOn () |
| Boolean controls whether bounding triangulation points (and associated triangles) are included in the output. More...
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virtual void | BoundingTriangulationOff () |
| Boolean controls whether bounding triangulation points (and associated triangles) are included in the output. More...
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void | SetLocator (vtkIncrementalPointLocator *locator) |
| Set / get a spatial locator for merging points. More...
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virtual vtkIncrementalPointLocator * | GetLocator () |
| Set / get a spatial locator for merging points. More...
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virtual void | SetOutputPointsPrecision (int) |
| Set/get the desired precision for the output types. More...
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virtual int | GetOutputPointsPrecision () |
| Set/get the desired precision for the output types. More...
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vtkUnstructuredGridAlgorithm * | NewInstance () const |
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int | ProcessRequest (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override |
| see vtkAlgorithm for details More...
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vtkDataObject * | GetInput (int port) |
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vtkDataObject * | GetInput () |
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vtkUnstructuredGrid * | GetUnstructuredGridInput (int port) |
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vtkUnstructuredGrid * | GetOutput () |
| Get the output data object for a port on this algorithm. More...
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vtkUnstructuredGrid * | GetOutput (int) |
| Get the output data object for a port on this algorithm. More...
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virtual void | SetOutput (vtkDataObject *d) |
| Get the output data object for a port on this algorithm. More...
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void | SetInputData (vtkDataObject *) |
| Assign a data object as input. More...
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void | SetInputData (int, vtkDataObject *) |
| Assign a data object as input. More...
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void | AddInputData (vtkDataObject *) |
| Assign a data object as input. More...
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void | AddInputData (int, vtkDataObject *) |
| Assign a data object as input. 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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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 | UpdateProgress (double amount) |
| Update the progress of the process object. More...
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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 | 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...
|
|
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...
|
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vtkExecutive * | GetInputExecutive () |
| Equivalent to GetInputExecutive(0, 0) More...
|
|
vtkInformation * | GetInputInformation (int port, int index) |
| Return the information object that is associated with a particular input connection. More...
|
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vtkInformation * | GetInputInformation () |
| Equivalent to GetInputInformation(0, 0) More...
|
|
vtkInformation * | GetOutputInformation (int port) |
| Return the information object that is associated with a particular output port. More...
|
|
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]=0) |
| Convenience method to update an algorithm after passing requests to its first output port. More...
|
|
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]=0) |
| 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...
|
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virtual void | UpdateWholeExtent () |
| Bring this algorithm's outputs up-to-date. More...
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|
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...
|
|
int | SetUpdateExtentToWholeExtent (int port) |
| If the whole output extent is required, this method can be called to set the output update extent to the whole extent. More...
|
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int | SetUpdateExtentToWholeExtent () |
| Convenience function equivalent to SetUpdateExtentToWholeExtent(0) This method assumes that the whole extent is known (that UpdateInformation has been called). More...
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void | SetUpdateExtent (int port, int piece, int numPieces, int ghostLevel) |
| Set the output update extent in terms of piece and ghost levels. More...
|
|
void | SetUpdateExtent (int piece, int numPieces, int ghostLevel) |
| Convenience function equivalent to SetUpdateExtent(0, piece, numPieces, ghostLevel) More...
|
|
void | SetUpdateExtent (int port, int extent[6]) |
| Set the output update extent for data objects that use 3D extents. More...
|
|
void | SetUpdateExtent (int extent[6]) |
| Convenience function equivalent to SetUpdateExtent(0, extent) More...
|
|
virtual vtkInformation * | GetInformation () |
| Set/Get the information object associated with this algorithm. More...
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virtual void | SetInformation (vtkInformation *) |
| Set/Get the information object associated with this 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 |
| Participate in garbage collection. More...
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virtual void | SetAbortExecute (int) |
| Set/Get the AbortExecute flag for the process object. More...
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|
virtual int | GetAbortExecute () |
| Set/Get the AbortExecute flag for the process object. More...
|
|
virtual void | AbortExecuteOn () |
| Set/Get the AbortExecute flag for the process object. More...
|
|
virtual void | AbortExecuteOff () |
| Set/Get the AbortExecute flag for the process object. More...
|
|
virtual void | SetProgress (double) |
| Set/Get the execution progress of a process object. More...
|
|
virtual double | GetProgress () |
| Set/Get the execution progress of a process object. More...
|
|
void | SetProgressText (const char *ptext) |
| Set the current text message associated with the progress state. More...
|
|
virtual char * | GetProgressText () |
| Set the current text message associated with the progress state. More...
|
|
virtual unsigned long | GetErrorCode () |
| The error code contains a possible error that occurred while reading or writing the file. More...
|
|
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...
|
|
virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType) |
| Set the input data arrays that this algorithm will process. More...
|
|
virtual void | SetInputArrayToProcess (int idx, vtkInformation *info) |
| Set the input data arrays that this algorithm will process. More...
|
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virtual void | SetInputConnection (int port, vtkAlgorithmOutput *input) |
| Set the connection for the given input port index. More...
|
|
virtual void | SetInputConnection (vtkAlgorithmOutput *input) |
| Set the connection for the given input port index. More...
|
|
virtual void | AddInputConnection (int port, vtkAlgorithmOutput *input) |
| Add a connection to the given input port index. More...
|
|
virtual void | AddInputConnection (vtkAlgorithmOutput *input) |
| Add a connection to the given input port index. More...
|
|
virtual void | Update (int port) |
| Bring this algorithm's outputs up-to-date. More...
|
|
virtual void | Update () |
| Bring this algorithm's outputs up-to-date. More...
|
|
virtual void | SetReleaseDataFlag (int) |
| Turn release data flag on or off for all output ports. More...
|
|
virtual int | GetReleaseDataFlag () |
| Turn release data flag on or off for all output ports. More...
|
|
void | ReleaseDataFlagOn () |
| Turn release data flag on or off for all output ports. More...
|
|
void | ReleaseDataFlagOff () |
| Turn release data flag on or off for all output ports. More...
|
|
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...
|
|
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. More...
|
|
int * | GetUpdateExtent () |
| These functions return the update extent for output ports that use 3D extents. More...
|
|
int * | GetUpdateExtent (int port) |
| These functions return the update extent for output ports that use 3D extents. More...
|
|
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. More...
|
|
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. More...
|
|
void | GetUpdateExtent (int extent[6]) |
| These functions return the update extent for output ports that use 3D extents. More...
|
|
void | GetUpdateExtent (int port, int extent[6]) |
| These functions return the update extent for output ports that use 3D extents. More...
|
|
int | GetUpdatePiece () |
| These functions return the update extent for output ports that use piece extents. More...
|
|
int | GetUpdatePiece (int port) |
| These functions return the update extent for output ports that use piece extents. More...
|
|
int | GetUpdateNumberOfPieces () |
| These functions return the update extent for output ports that use piece extents. More...
|
|
int | GetUpdateNumberOfPieces (int port) |
| These functions return the update extent for output ports that use piece extents. More...
|
|
int | GetUpdateGhostLevel () |
| These functions return the update extent for output ports that use piece extents. More...
|
|
int | GetUpdateGhostLevel (int port) |
| These functions return the update extent for output ports that use piece extents. More...
|
|
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 () |
| If an ProgressObserver is set, the algorithm will report progress through it rather than directly. More...
|
|
| vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
|
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...
|
|
void | SetDebug (bool debugFlag) |
| Set the value of the debug flag. More...
|
|
virtual void | Modified () |
| Update the modification time for this object. More...
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void | RemoveObserver (unsigned long tag) |
|
void | RemoveObservers (unsigned long event) |
|
void | RemoveObservers (const char *event) |
|
void | RemoveAllObservers () |
|
int | HasObserver (unsigned long event) |
|
int | HasObserver (const char *event) |
|
int | InvokeEvent (unsigned long event) |
|
int | InvokeEvent (const char *event) |
|
unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
|
|
unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
|
|
vtkCommand * | GetCommand (unsigned long tag) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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|
void | RemoveObserver (vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
|
|
void | RemoveObservers (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
|
|
void | RemoveObservers (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
|
|
int | HasObserver (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
|
|
int | HasObserver (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
|
|
template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f) |
| Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
|
|
template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
| Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
|
|
template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
| Allow user to set the AbortFlagOn() with the return value of the callback method. More...
|
|
int | InvokeEvent (unsigned long event, void *callData) |
| This method invokes an event and return whether the event was aborted or not. More...
|
|
int | InvokeEvent (const char *event, void *callData) |
| This method invokes an event and return whether the event was aborted or not. More...
|
|
const char * | GetClassName () const |
| Return the class name as a string. More...
|
|
virtual void | Delete () |
| Delete a VTK object. More...
|
|
virtual void | FastDelete () |
| Delete a reference to this object. More...
|
|
void | InitializeObjectBase () |
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void | Print (ostream &os) |
| Print an object to an ostream. More...
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|
int | GetReferenceCount () |
| Return the current reference count of this object. More...
|
|
void | SetReferenceCount (int) |
| Sets the reference count. More...
|
|
void | PrintRevisions (ostream &) |
| Legacy. More...
|
|
virtual void | PrintHeader (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses. More...
|
|
virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses. More...
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|
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virtual vtkObjectBase * | NewInstanceInternal () const |
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| vtkDelaunay3D () |
|
| ~vtkDelaunay3D () override |
|
int | RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override |
| This is called by the superclass. More...
|
|
int | FindTetra (vtkUnstructuredGrid *Mesh, double x[3], vtkIdType tetId, int depth) |
|
int | InSphere (double x[3], vtkIdType tetraId) |
|
void | InsertTetra (vtkUnstructuredGrid *Mesh, vtkPoints *pts, vtkIdType tetraId) |
|
vtkIdType | FindEnclosingFaces (double x[3], vtkUnstructuredGrid *Mesh, vtkIdList *tetras, vtkIdList *faces, vtkIncrementalPointLocator *Locator) |
|
int | FillInputPortInformation (int, vtkInformation *) override |
| Fill the input port information objects for this algorithm. More...
|
|
| vtkUnstructuredGridAlgorithm () |
|
| ~vtkUnstructuredGridAlgorithm () override |
|
virtual int | RequestInformation (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) |
|
virtual int | RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
| This is called by the superclass. More...
|
|
int | FillOutputPortInformation (int port, vtkInformation *info) override |
| Fill the output port information objects for this algorithm. More...
|
|
| 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...
|
|
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...
|
|
void | ReportReferences (vtkGarbageCollector *) override |
|
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) |
|
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) |
| Filters that have multiple connections on one port can use this signature. More...
|
|
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) |
| Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
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vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature. More...
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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. More...
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vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input) |
| Filters that have multiple connections on one port can use this signature. More...
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vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input, int &association) |
| Filters that have multiple connections on one port can use this signature. More...
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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. More...
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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. More...
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vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature. More...
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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. More...
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vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input) |
| Filters that have multiple connections on one port can use this signature. More...
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vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association) |
| Filters that have multiple connections on one port can use this signature. More...
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virtual void | SetErrorCode (unsigned long) |
| The error code contains a possible error that occurred while reading or writing the file. More...
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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=NULL) |
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void | InternalReleaseFocus () |
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| vtkObjectBase () |
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virtual | ~vtkObjectBase () |
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virtual void | CollectRevisions (ostream &) |
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| vtkObjectBase (const vtkObjectBase &) |
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void | operator= (const vtkObjectBase &) |
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create 3D Delaunay triangulation of input points
vtkDelaunay3D is a filter that constructs a 3D Delaunay triangulation from a list of input points. These points may be represented by any dataset of type vtkPointSet and subclasses. The output of the filter is an unstructured grid dataset. Usually the output is a tetrahedral mesh, but if a non-zero alpha distance value is specified (called the "alpha" value), then only tetrahedra, triangles, edges, and vertices laying within the alpha radius are output. In other words, non-zero alpha values may result in arbitrary combinations of tetrahedra, triangles, lines, and vertices. (The notion of alpha value is derived from Edelsbrunner's work on "alpha shapes".) Note that a modification to alpha shapes enables output of combinations of tetrahedra, triangles, lines, and/or verts (see the boolean ivars AlphaTets, AlphaTris, AlphaLines, AlphaVerts).
The 3D Delaunay triangulation is defined as the triangulation that satisfies the Delaunay criterion for n-dimensional simplexes (in this case n=3 and the simplexes are tetrahedra). This criterion states that a circumsphere of each simplex in a triangulation contains only the n+1 defining points of the simplex. (See text for more information.) While in two dimensions this translates into an "optimal" triangulation, this is not true in 3D, since a measurement for optimality in 3D is not agreed on.
Delaunay triangulations are used to build topological structures from unorganized (or unstructured) points. The input to this filter is a list of points specified in 3D. (If you wish to create 2D triangulations see vtkDelaunay2D.) The output is an unstructured grid.
The Delaunay triangulation can be numerically sensitive. To prevent problems, try to avoid injecting points that will result in triangles with bad aspect ratios (1000:1 or greater). In practice this means inserting points that are "widely dispersed", and enables smooth transition of triangle sizes throughout the mesh. (You may even want to add extra points to create a better point distribution.) If numerical problems are present, you will see a warning message to this effect at the end of the triangulation process.
- Warning
- Points arranged on a regular lattice (termed degenerate cases) can be triangulated in more than one way (at least according to the Delaunay criterion). The choice of triangulation (as implemented by this algorithm) depends on the order of the input points. The first four points will form a tetrahedron; other degenerate points (relative to this initial tetrahedron) will not break it.
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Points that are coincident (or nearly so) may be discarded by the algorithm. This is because the Delaunay triangulation requires unique input points. You can control the definition of coincidence with the "Tolerance" instance variable.
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The output of the Delaunay triangulation is supposedly a convex hull. In certain cases this implementation may not generate the convex hull. This behavior can be controlled by the Offset instance variable. Offset is a multiplier used to control the size of the initial triangulation. The larger the offset value, the more likely you will generate a convex hull; and the more likely you are to see numerical problems.
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The implementation of this algorithm varies from the 2D Delaunay algorithm (i.e., vtkDelaunay2D) in an important way. When points are injected into the triangulation, the search for the enclosing tetrahedron is quite different. In the 3D case, the closest previously inserted point point is found, and then the connected tetrahedra are searched to find the containing one. (In 2D, a "walk" towards the enclosing triangle is performed.) If the triangulation is Delaunay, then an enclosing tetrahedron will be found. However, in degenerate cases an enclosing tetrahedron may not be found and the point will be rejected.
- See also
- vtkDelaunay2D vtkGaussianSplatter vtkUnstructuredGrid
- Examples:
- vtkDelaunay3D (Examples)
- Tests:
- vtkDelaunay3D (Tests)
Definition at line 113 of file vtkDelaunay3D.h.