sweep polygonal data creating "skirt" from free edges and lines, and lines from vertices
More...
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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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vtkQuadRotationalExtrusionFilter * | NewInstance () const |
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void | PrintSelf (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses. More...
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virtual void | SetAxis (int) |
| Set the axis of rotation to use. More...
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virtual int | GetAxis () |
| Set the axis of rotation to use. More...
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void | SetAxisToX () |
| Set the axis of rotation to use. More...
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void | SetAxisToY () |
| Set the axis of rotation to use. More...
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void | SetAxisToZ () |
| Set the axis of rotation to use. More...
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virtual void | SetResolution (int) |
| Set/Get resolution of sweep operation. More...
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virtual int | GetResolution () |
| Set/Get resolution of sweep operation. More...
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virtual void | SetCapping (int) |
| Turn on/off the capping of the skirt. More...
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virtual int | GetCapping () |
| Turn on/off the capping of the skirt. More...
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virtual void | CappingOn () |
| Turn on/off the capping of the skirt. More...
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virtual void | CappingOff () |
| Turn on/off the capping of the skirt. More...
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virtual void | SetDefaultAngle (double) |
| Set/Get angle of rotation. More...
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virtual double | GetDefaultAngle () |
| Set/Get angle of rotation. More...
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void | RemoveAllPerBlockAngles () |
| Set/Get angles of rotation for each block in a composite data set. More...
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void | AddPerBlockAngle (vtkIdType blockId, double angle) |
| Set/Get angles of rotation for each block in a composite data set. More...
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virtual void | SetTranslation (double) |
| Set/Get total amount of translation along the z-axis. More...
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virtual double | GetTranslation () |
| Set/Get total amount of translation along the z-axis. More...
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virtual void | SetDeltaRadius (double) |
| Set/Get change in radius during sweep process. More...
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virtual double | GetDeltaRadius () |
| Set/Get change in radius during sweep process. More...
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vtkMultiBlockDataSetAlgorithm * | NewInstance () const |
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int | ProcessRequest (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) override |
| see vtkAlgorithm for details More...
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vtkMultiBlockDataSet * | GetOutput () |
| Get the output data object for a port on this algorithm. More...
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vtkMultiBlockDataSet * | GetOutput (int) |
| 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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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...
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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...
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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...
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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 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...
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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...
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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]=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...
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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...
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void | SetUpdateExtent (int piece, int numPieces, int ghostLevel) |
| Convenience function equivalent to SetUpdateExtent(0, piece, numPieces, ghostLevel) More...
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void | SetUpdateExtent (int port, int extent[6]) |
| Set the output update extent for data objects that use 3D extents. More...
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void | SetUpdateExtent (int extent[6]) |
| Convenience function equivalent to SetUpdateExtent(0, extent) 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 *) |
| 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...
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virtual void | AbortExecuteOn () |
| Set/Get the AbortExecute flag for the process object. More...
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virtual void | AbortExecuteOff () |
| Set/Get the AbortExecute flag for the process object. More...
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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 () |
| Set/Get the execution progress of a 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 () |
| Set the current text message associated with the progress state. More...
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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) |
| Set the input data arrays that this algorithm will process. More...
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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...
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virtual void | SetInputConnection (vtkAlgorithmOutput *input) |
| Set the connection for the given input port index. More...
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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) |
| Add a connection to the given input port index. More...
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virtual void | Update (int port) |
| Bring this algorithm's outputs up-to-date. More...
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virtual void | Update () |
| Bring this algorithm's outputs up-to-date. More...
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virtual void | SetReleaseDataFlag (int) |
| Turn release data flag on or off for all output ports. More...
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virtual int | GetReleaseDataFlag () |
| Turn release data flag on or off for all output ports. More...
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void | ReleaseDataFlagOn () |
| Turn release data flag on or off for all output ports. More...
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void | ReleaseDataFlagOff () |
| Turn release data flag on or off for all output ports. More...
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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) |
| 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 * | GetUpdateExtent () |
| These functions return the update extent for output ports that use 3D extents. More...
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int * | GetUpdateExtent (int port) |
| These functions return the update extent for output ports that use 3D extents. More...
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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...
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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...
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void | GetUpdateExtent (int extent[6]) |
| These functions return the update extent for output ports that use 3D extents. More...
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void | GetUpdateExtent (int port, int extent[6]) |
| These functions return the update extent for output ports that use 3D extents. More...
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int | GetUpdatePiece () |
| These functions return the update extent for output ports that use piece extents. More...
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int | GetUpdatePiece (int port) |
| These functions return the update extent for output ports that use piece extents. More...
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int | GetUpdateNumberOfPieces () |
| These functions return the update extent for output ports that use piece extents. More...
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int | GetUpdateNumberOfPieces (int port) |
| These functions return the update extent for output ports that use piece extents. More...
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int | GetUpdateGhostLevel () |
| These functions return the update extent for output ports that use piece extents. More...
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int | GetUpdateGhostLevel (int port) |
| These functions return the update extent for output ports that use piece extents. More...
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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 () |
| If an ProgressObserver is set, the algorithm will report progress through it rather than directly. More...
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| 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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virtual vtkMTimeType | GetMTime () |
| Return this object's modified time. More...
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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) |
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void | RemoveAllObservers () |
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int | HasObserver (unsigned long event) |
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int | HasObserver (const char *event) |
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int | InvokeEvent (unsigned long event) |
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int | InvokeEvent (const char *event) |
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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) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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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...
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void | RemoveObservers (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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void | RemoveObservers (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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int | HasObserver (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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int | HasObserver (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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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) |
| 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, 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...
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int | InvokeEvent (const char *event, void *callData) |
| This method invokes an event and return whether the event was aborted or not. More...
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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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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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virtual void | PrintHeader (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses. More...
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virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses. More...
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virtual vtkObjectBase * | NewInstanceInternal () const |
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| vtkQuadRotationalExtrusionFilter () |
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| ~vtkQuadRotationalExtrusionFilter () |
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int | FillInputPortInformation (int, vtkInformation *) |
| Fill the input port information objects for this algorithm. More...
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int | RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
| This is called by the superclass. More...
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int | RotateAroundAxis (double, vtkIdType, vtkPoints *, vtkPoints *, vtkPointData *, vtkPointData *) |
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| vtkMultiBlockDataSetAlgorithm () |
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| ~vtkMultiBlockDataSetAlgorithm () override |
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virtual int | RequestDataObject (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
| This is called by the superclass. More...
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virtual int | RequestInformation (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
| This is called by the superclass. More...
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vtkExecutive * | CreateDefaultExecutive () override |
| Create a default executive. More...
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int | FillOutputPortInformation (int port, vtkInformation *info) override |
| Fill the output port information objects for this algorithm. More...
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vtkDataObject * | GetInput (int port) |
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virtual int | RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
| This is called by the superclass. More...
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| vtkAlgorithm () |
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| ~vtkAlgorithm () override |
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virtual void | SetNumberOfInputPorts (int n) |
| Set the number of input ports used by the algorithm. More...
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virtual void | SetNumberOfOutputPorts (int n) |
| Set the number of output ports provided by the algorithm. More...
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int | InputPortIndexInRange (int index, const char *action) |
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int | OutputPortIndexInRange (int index, const char *action) |
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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...
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vtkInformation * | GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector) |
| This method takes in an index (as specified in SetInputArrayToProcess) and a pipeline information vector. More...
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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. More...
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virtual void | SetNumberOfInputConnections (int port, int n) |
| Set the number of input connections on the given input port. More...
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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. More...
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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. More...
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int | GetInputArrayAssociation (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, 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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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) |
| These methods allow a command to exclusively grab all events. More...
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void | InternalReleaseFocus () |
| These methods allow a command to exclusively grab all events. More...
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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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sweep polygonal data creating "skirt" from free edges and lines, and lines from vertices
vtkQuadRotationalExtrusionFilter is a modeling filter. It takes polygonal data as input and generates polygonal data on output. The input dataset is swept around the z-axis to create new polygonal primitives. These primitives form a "skirt" or swept surface. For example, sweeping a line results in a cylindrical shell, and sweeping a circle creates a torus.
There are a number of control parameters for this filter. You can control whether the sweep of a 2D object (i.e., polygon or triangle strip) is capped with the generating geometry via the "Capping" instance variable. Also, you can control the angle of rotation, and whether translation along the z-axis is performed along with the rotation. (Translation is useful for creating "springs".) You also can adjust the radius of the generating geometry using the "DeltaRotation" instance variable.
The skirt is generated by locating certain topological features. Free edges (edges of polygons or triangle strips only used by one polygon or triangle strips) generate surfaces. This is true also of lines or polylines. Vertices generate lines.
This filter can be used to model axisymmetric objects like cylinders, bottles, and wine glasses; or translational/rotational symmetric objects like springs or corkscrews.
- Warning
- If the object sweeps 360 degrees, radius does not vary, and the object does not translate, capping is not performed. This is because the cap is unnecessary.
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Some polygonal objects have no free edges (e.g., sphere). When swept, this will result in two separate surfaces if capping is on, or no surface if capping is off.
- See also
- vtkLinearExtrusionFilter vtkRotationalExtrusionFilter
- Thanks:
- This class was initially developed by Daniel Aguilera, CEA/DIF Ported and modified by Philippe Pebay, Kitware, 2011
- Tests:
- vtkQuadRotationalExtrusionFilter (Tests)
Definition at line 75 of file vtkQuadRotationalExtrusionFilter.h.