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virtual int | IsA (const char *type) |
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vtkStreamTracer * | NewInstance () const |
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void | PrintSelf (ostream &os, vtkIndent indent) |
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void | SetSourceConnection (vtkAlgorithmOutput *algOutput) |
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void | SetInterpolatorTypeToDataSetPointLocator () |
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void | SetInterpolatorTypeToCellLocator () |
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void | SetInterpolatorPrototype (vtkAbstractInterpolatedVelocityField *ivf) |
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void | SetInterpolatorType (int interpType) |
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virtual void | SetStartPosition (double, double, double) |
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virtual void | SetStartPosition (double[3]) |
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virtual double * | GetStartPosition () |
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virtual void | GetStartPosition (double &, double &, double &) |
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virtual void | GetStartPosition (double[3]) |
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void | SetSourceData (vtkDataSet *source) |
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vtkDataSet * | GetSource () |
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void | SetIntegrator (vtkInitialValueProblemSolver *) |
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virtual vtkInitialValueProblemSolver * | GetIntegrator () |
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void | SetIntegratorType (int type) |
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int | GetIntegratorType () |
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void | SetIntegratorTypeToRungeKutta2 () |
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void | SetIntegratorTypeToRungeKutta4 () |
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void | SetIntegratorTypeToRungeKutta45 () |
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virtual void | SetMaximumPropagation (double) |
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virtual double | GetMaximumPropagation () |
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void | SetIntegrationStepUnit (int unit) |
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int | GetIntegrationStepUnit () |
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virtual void | SetInitialIntegrationStep (double) |
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virtual double | GetInitialIntegrationStep () |
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virtual void | SetMinimumIntegrationStep (double) |
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virtual double | GetMinimumIntegrationStep () |
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virtual void | SetMaximumIntegrationStep (double) |
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virtual double | GetMaximumIntegrationStep () |
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virtual void | SetMaximumError (double) |
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virtual double | GetMaximumError () |
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virtual void | SetMaximumNumberOfSteps (vtkIdType) |
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virtual vtkIdType | GetMaximumNumberOfSteps () |
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virtual void | SetTerminalSpeed (double) |
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virtual double | GetTerminalSpeed () |
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virtual bool | GetSurfaceStreamlines () |
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virtual void | SetSurfaceStreamlines (bool) |
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virtual void | SurfaceStreamlinesOn () |
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virtual void | SurfaceStreamlinesOff () |
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virtual void | SetIntegrationDirection (int) |
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virtual int | GetIntegrationDirection () |
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void | SetIntegrationDirectionToForward () |
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void | SetIntegrationDirectionToBackward () |
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void | SetIntegrationDirectionToBoth () |
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virtual void | SetComputeVorticity (bool) |
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virtual bool | GetComputeVorticity () |
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virtual void | SetRotationScale (double) |
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virtual double | GetRotationScale () |
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vtkPolyDataAlgorithm * | NewInstance () const |
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vtkDataObject * | GetInput () |
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vtkDataObject * | GetInput (int port) |
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vtkPolyData * | GetPolyDataInput (int port) |
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vtkPolyData * | GetOutput () |
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vtkPolyData * | GetOutput (int) |
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virtual void | SetOutput (vtkDataObject *d) |
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virtual int | ProcessRequest (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
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void | SetInputData (vtkDataObject *) |
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void | SetInputData (int, vtkDataObject *) |
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void | AddInputData (vtkDataObject *) |
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void | AddInputData (int, vtkDataObject *) |
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vtkAlgorithm * | NewInstance () const |
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int | HasExecutive () |
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vtkExecutive * | GetExecutive () |
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virtual void | SetExecutive (vtkExecutive *executive) |
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virtual int | ModifyRequest (vtkInformation *request, int when) |
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vtkInformation * | GetInputPortInformation (int port) |
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vtkInformation * | GetOutputPortInformation (int port) |
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int | GetNumberOfInputPorts () |
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int | GetNumberOfOutputPorts () |
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void | UpdateProgress (double amount) |
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vtkInformation * | GetInputArrayInformation (int idx) |
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void | RemoveAllInputs () |
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vtkDataObject * | GetOutputDataObject (int port) |
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virtual void | RemoveInputConnection (int port, vtkAlgorithmOutput *input) |
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virtual void | RemoveInputConnection (int port, int idx) |
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virtual void | RemoveAllInputConnections (int port) |
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int | GetNumberOfInputConnections (int port) |
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int | GetTotalNumberOfInputConnections () |
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vtkAlgorithmOutput * | GetInputConnection (int port, int index) |
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vtkAlgorithm * | GetInputAlgorithm (int port, int index, int &algPort) |
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vtkAlgorithm * | GetInputAlgorithm (int port, int index) |
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vtkExecutive * | GetInputExecutive (int port, int index) |
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vtkInformation * | GetInputInformation (int port, int index) |
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vtkInformation * | GetOutputInformation (int port) |
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virtual void | UpdateInformation () |
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virtual void | UpdateDataObject () |
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virtual void | PropagateUpdateExtent () |
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virtual void | UpdateWholeExtent () |
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void | ConvertTotalInputToPortConnection (int ind, int &port, int &conn) |
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int | SetUpdateExtentToWholeExtent (int port) |
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int | SetUpdateExtentToWholeExtent () |
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void | SetUpdateExtent (int port, int extent[6]) |
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int | ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo) |
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virtual int | ComputePipelineMTime (vtkInformation *request, vtkInformationVector **inInfoVec, vtkInformationVector *outInfoVec, int requestFromOutputPort, unsigned long *mtime) |
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virtual vtkInformation * | GetInformation () |
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virtual void | SetInformation (vtkInformation *) |
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virtual void | Register (vtkObjectBase *o) |
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virtual void | UnRegister (vtkObjectBase *o) |
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virtual void | SetAbortExecute (int) |
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virtual int | GetAbortExecute () |
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virtual void | AbortExecuteOn () |
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virtual void | AbortExecuteOff () |
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virtual void | SetProgress (double) |
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virtual double | GetProgress () |
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void | SetProgressText (const char *ptext) |
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virtual char * | GetProgressText () |
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virtual unsigned long | GetErrorCode () |
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virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name) |
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virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType) |
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virtual void | SetInputArrayToProcess (int idx, vtkInformation *info) |
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virtual void | SetInputArrayToProcess (int idx, int port, int connection, const char *fieldAssociation, const char *attributeTypeorName) |
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vtkDataObject * | GetInputDataObject (int port, int connection) |
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virtual void | SetInputConnection (int port, vtkAlgorithmOutput *input) |
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virtual void | SetInputConnection (vtkAlgorithmOutput *input) |
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virtual void | AddInputConnection (int port, vtkAlgorithmOutput *input) |
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virtual void | AddInputConnection (vtkAlgorithmOutput *input) |
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virtual void | SetInputDataObject (int port, vtkDataObject *data) |
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virtual void | SetInputDataObject (vtkDataObject *data) |
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virtual void | AddInputDataObject (int port, vtkDataObject *data) |
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virtual void | AddInputDataObject (vtkDataObject *data) |
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vtkAlgorithmOutput * | GetOutputPort (int index) |
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vtkAlgorithmOutput * | GetOutputPort () |
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vtkAlgorithm * | GetInputAlgorithm () |
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vtkExecutive * | GetInputExecutive () |
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vtkInformation * | GetInputInformation () |
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virtual void | Update (int port) |
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virtual void | Update () |
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virtual void | SetReleaseDataFlag (int) |
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virtual int | GetReleaseDataFlag () |
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void | ReleaseDataFlagOn () |
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void | ReleaseDataFlagOff () |
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int | UpdateExtentIsEmpty (vtkInformation *pinfo, vtkDataObject *output) |
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int | UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType) |
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void | SetUpdateExtent (int port, int piece, int numPieces, int ghostLevel) |
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void | SetUpdateExtent (int piece, int numPieces, int ghostLevel) |
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void | SetUpdateExtent (int extent[6]) |
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int * | GetUpdateExtent () |
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int * | GetUpdateExtent (int port) |
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void | GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
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void | GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
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void | GetUpdateExtent (int extent[6]) |
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void | GetUpdateExtent (int port, int extent[6]) |
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int | GetUpdatePiece () |
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int | GetUpdatePiece (int port) |
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int | GetUpdateNumberOfPieces () |
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int | GetUpdateNumberOfPieces (int port) |
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int | GetUpdateGhostLevel () |
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int | GetUpdateGhostLevel (int port) |
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void | SetProgressObserver (vtkProgressObserver *) |
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virtual vtkProgressObserver * | GetProgressObserver () |
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vtkObject * | NewInstance () const |
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virtual void | DebugOn () |
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virtual void | DebugOff () |
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bool | GetDebug () |
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void | SetDebug (bool debugFlag) |
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virtual void | Modified () |
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virtual unsigned long | GetMTime () |
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unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
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unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
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vtkCommand * | GetCommand (unsigned long tag) |
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void | RemoveObserver (vtkCommand *) |
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void | RemoveObservers (unsigned long event, vtkCommand *) |
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void | RemoveObservers (const char *event, vtkCommand *) |
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int | HasObserver (unsigned long event, vtkCommand *) |
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int | HasObserver (const char *event, vtkCommand *) |
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void | RemoveObserver (unsigned long tag) |
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void | RemoveObservers (unsigned long event) |
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void | RemoveObservers (const char *event) |
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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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template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f) |
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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) |
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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) |
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int | InvokeEvent (unsigned long event, void *callData) |
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int | InvokeEvent (const char *event, void *callData) |
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int | InvokeEvent (unsigned long event) |
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int | InvokeEvent (const char *event) |
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const char * | GetClassName () const |
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virtual void | Delete () |
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virtual void | FastDelete () |
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void | Print (ostream &os) |
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void | SetReferenceCount (int) |
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void | PrintRevisions (ostream &) |
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virtual void | PrintHeader (ostream &os, vtkIndent indent) |
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virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
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int | GetReferenceCount () |
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virtual vtkObjectBase * | NewInstanceInternal () const |
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| vtkStreamTracer () |
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| ~vtkStreamTracer () |
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virtual vtkExecutive * | CreateDefaultExecutive () |
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void | AddInput (vtkDataObject *) |
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virtual int | RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
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virtual int | FillInputPortInformation (int, vtkInformation *) |
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void | CalculateVorticity (vtkGenericCell *cell, double pcoords[3], vtkDoubleArray *cellVectors, double vorticity[3]) |
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void | Integrate (vtkPointData *inputData, vtkPolyData *output, vtkDataArray *seedSource, vtkIdList *seedIds, vtkIntArray *integrationDirections, double lastPoint[3], vtkAbstractInterpolatedVelocityField *func, int maxCellSize, int vecType, const char *vecFieldName, double &propagation, vtkIdType &numSteps, double &integrationTime) |
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double | SimpleIntegrate (double seed[3], double lastPoint[3], double stepSize, vtkAbstractInterpolatedVelocityField *func) |
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int | CheckInputs (vtkAbstractInterpolatedVelocityField *&func, int *maxCellSize) |
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void | GenerateNormals (vtkPolyData *output, double *firstNormal, const char *vecName) |
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void | ConvertIntervals (double &step, double &minStep, double &maxStep, int direction, double cellLength) |
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int | SetupOutput (vtkInformation *inInfo, vtkInformation *outInfo) |
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void | InitializeSeeds (vtkDataArray *&seeds, vtkIdList *&seedIds, vtkIntArray *&integrationDirections, vtkDataSet *source) |
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| vtkPolyDataAlgorithm () |
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| ~vtkPolyDataAlgorithm () |
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virtual int | RequestInformation (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) |
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virtual int | FillOutputPortInformation (int port, vtkInformation *info) |
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virtual int | RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
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| vtkAlgorithm () |
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| ~vtkAlgorithm () |
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virtual void | SetNumberOfInputPorts (int n) |
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virtual void | SetNumberOfOutputPorts (int n) |
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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) |
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virtual void | ReportReferences (vtkGarbageCollector *) |
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virtual void | SetNumberOfInputConnections (int port, int n) |
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int | GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector) |
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int | GetInputArrayAssociation (int idx, vtkDataObject *input) |
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vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector) |
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vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
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vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
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vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
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vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input) |
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vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input, int &association) |
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vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector) |
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vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
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vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
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vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
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vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input) |
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vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association) |
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vtkInformation * | GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector) |
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virtual void | SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input) |
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void | SetInputDataInternal (int port, vtkDataObject *input) |
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void | AddInputDataInternal (int port, vtkDataObject *input) |
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virtual void | SetErrorCode (unsigned long) |
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| vtkObject () |
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virtual | ~vtkObject () |
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virtual void | RegisterInternal (vtkObjectBase *, int check) |
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virtual void | UnRegisterInternal (vtkObjectBase *, int check) |
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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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Streamline generator.
vtkStreamTracer is a filter that integrates a vector field to generate streamlines. The integration is performed using a specified integrator, by default Runge-Kutta2.
vtkStreamTracer produces polylines as the output, with each cell (i.e., polyline) representing a streamline. The attribute values associated with each streamline are stored in the cell data, whereas those associated with streamline-points are stored in the point data.
vtkStreamTracer supports forward (the default), backward, and combined (i.e., BOTH) integration. The length of a streamline is governed by specifying a maximum value either in physical arc length or in (local) cell length. Otherwise, the integration terminates upon exiting the flow field domain, or if the particle speed is reduced to a value less than a specified terminal speed, or when a maximum number of steps is completed. The specific reason for the termination is stored in a cell array named ReasonForTermination.
Note that normalized vectors are adopted in streamline integration, which achieves high numerical accuracy/smoothness of flow lines that is particularly guaranteed for Runge-Kutta45 with adaptive step size and error control). In support of this feature, the underlying step size is ALWAYS in arc length unit (LENGTH_UNIT) while the 'real' time interval (virtual for steady flows) that a particle actually takes to trave in a single step is obtained by dividing the arc length by the LOCAL speed. The overall elapsed time (i.e., the life span) of the particle is the sum of those individual step-wise time intervals.
The quality of streamline integration can be controlled by setting the initial integration step (InitialIntegrationStep), particularly for Runge-Kutta2 and Runge-Kutta4 (with a fixed step size), and in the case of Runge-Kutta45 (with an adaptive step size and error control) the minimum integration step, the maximum integration step, and the maximum error. These steps are in either LENGTH_UNIT or CELL_LENGTH_UNIT while the error is in physical arc length. For the former two integrators, there is a trade-off between integration speed and streamline quality.
The integration time, vorticity, rotation and angular velocity are stored in point data arrays named "IntegrationTime", "Vorticity", "Rotation" and "AngularVelocity", respectively (vorticity, rotation and angular velocity are computed only when ComputeVorticity is on). All point data attributes in the source dataset are interpolated on the new streamline points.
vtkStreamTracer supports integration through any type of dataset. Thus if the dataset contains 2D cells like polygons or triangles, the integration is constrained to lie on the surface defined by 2D cells.
The starting point, or the so-called 'seed', of a streamline may be set in two different ways. Starting from global x-y-z "position" allows you to start a single trace at a specified x-y-z coordinate. If you specify a source object, traces will be generated from each point in the source that is inside the dataset.
- See also
- vtkRibbonFilter vtkRuledSurfaceFilter vtkInitialValueProblemSolver vtkRungeKutta2 vtkRungeKutta4 vtkRungeKutta45 vtkTemporalStreamTracer vtkAbstractInterpolatedVelocityField vtkInterpolatedVelocityField vtkCellLocatorInterpolatedVelocityField
- Examples:
- vtkStreamTracer (Examples)
- Tests:
- vtkStreamTracer (Tests)
Definition at line 102 of file vtkStreamTracer.h.