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virtual vtkTypeBool | IsA (const char *type) |
| Return 1 if this class is the same type of (or a subclass of) the named class. More...
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vtkEvenlySpacedStreamlines2D * | 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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virtual void | SetStartPosition (double, double, double) |
| Specify the starting point (seed) of the first streamline in the global coordinate system. More...
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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 | SetIntegrator (vtkInitialValueProblemSolver *) |
| Set/get the integrator type to be used for streamline generation. More...
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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 | SetInterpolatorTypeToDataSetPointLocator () |
| Set the velocity field interpolator type to the one involving a dataset point locator. More...
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void | SetInterpolatorTypeToCellLocator () |
| Set the velocity field interpolator type to the one involving a cell locator. More...
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void | SetIntegrationStepUnit (int unit) |
| Specify a uniform integration step unit for InitialIntegrationStep, and SeparatingDistance. More...
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int | GetIntegrationStepUnit () |
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virtual void | SetMaximumNumberOfSteps (vtkIdType) |
| Specify the maximum number of steps for integrating a streamline. More...
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virtual vtkIdType | GetMaximumNumberOfSteps () |
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virtual void | SetMinimumNumberOfLoopPoints (vtkIdType) |
| We don't try to eliminate loops with fewer points than this. More...
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virtual vtkIdType | GetMinimumNumberOfLoopPoints () |
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virtual void | SetInitialIntegrationStep (double) |
| Specify the Initial step size used for line integration, expressed in IntegrationStepUnit. More...
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virtual double | GetInitialIntegrationStep () |
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virtual void | SetSeparatingDistance (double) |
| Specify the separation distance between streamlines expressed in IntegrationStepUnit. More...
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virtual double | GetSeparatingDistance () |
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virtual void | SetSeparatingDistanceRatio (double) |
| Streamline integration is stopped if streamlines are closer than SeparatingDistance*SeparatingDistanceRatio to other streamlines. More...
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virtual double | GetSeparatingDistanceRatio () |
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virtual void | SetClosedLoopMaximumDistance (double) |
| Loops are considered closed if the have two points at distance less than this. More...
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virtual double | GetClosedLoopMaximumDistance () |
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virtual void | SetLoopAngle (double) |
| The angle (in radians) between the vector created by p0p1 and the velocity in the point closing the loop. More...
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virtual double | GetLoopAngle () |
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virtual void | SetTerminalSpeed (double) |
| Specify the terminal speed value, below which integration is terminated. More...
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virtual double | GetTerminalSpeed () |
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virtual void | SetComputeVorticity (bool) |
| Turn on/off vorticity computation at streamline points (necessary for generating proper stream-ribbons using the vtkRibbonFilter. More...
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virtual bool | GetComputeVorticity () |
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void | SetInterpolatorPrototype (vtkAbstractInterpolatedVelocityField *ivf) |
| The object used to interpolate the velocity field during integration is of the same class as this prototype. More...
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void | SetInterpolatorType (int interpType) |
| Set the type of the velocity field interpolator to determine whether vtkInterpolatedVelocityField (INTERPOLATOR_WITH_DATASET_POINT_LOCATOR) or vtkCellLocatorInterpolatedVelocityField (INTERPOLATOR_WITH_CELL_LOCATOR) is employed for locating cells during streamline integration. More...
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vtkPolyDataAlgorithm * | NewInstance () const |
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vtkPolyData * | GetOutput () |
| Get the output data object for a port on this algorithm. More...
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vtkPolyData * | GetOutput (int) |
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virtual void | SetOutput (vtkDataObject *d) |
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int | ProcessRequest (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override |
| see vtkAlgorithm for details More...
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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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void | SetInputData (vtkDataObject *) |
| Assign a data object as input. More...
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void | SetInputData (int, vtkDataObject *) |
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void | AddInputData (vtkDataObject *) |
| Assign a data object as input. More...
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void | AddInputData (int, vtkDataObject *) |
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vtkAlgorithm * | NewInstance () const |
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int | HasExecutive () |
| Check whether this algorithm has an assigned executive. More...
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vtkExecutive * | GetExecutive () |
| Get this algorithm's executive. More...
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virtual void | SetExecutive (vtkExecutive *executive) |
| Set this algorithm's executive. More...
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int | ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo) |
| Version of ProcessRequest() that is wrapped. More...
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virtual int | ComputePipelineMTime (vtkInformation *request, vtkInformationVector **inInfoVec, vtkInformationVector *outInfoVec, int requestFromOutputPort, vtkMTimeType *mtime) |
| A special version of ProcessRequest meant specifically for the pipeline modified time request. More...
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virtual int | ModifyRequest (vtkInformation *request, int when) |
| This method gives the algorithm a chance to modify the contents of a request before or after (specified in the when argument) it is forwarded. More...
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vtkInformation * | GetInputPortInformation (int port) |
| Get the information object associated with an input port. More...
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vtkInformation * | GetOutputPortInformation (int port) |
| Get the information object associated with an output port. More...
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virtual vtkInformation * | GetInformation () |
| Set/Get the information object associated with this algorithm. More...
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virtual void | SetInformation (vtkInformation *) |
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int | GetNumberOfInputPorts () |
| Get the number of input ports used by the algorithm. More...
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int | GetNumberOfOutputPorts () |
| Get the number of output ports provided by the algorithm. More...
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void | Register (vtkObjectBase *o) override |
| Participate in garbage collection. More...
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void | UnRegister (vtkObjectBase *o) override |
| Decrease the reference count (release by another object). More...
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virtual void | SetAbortExecute (vtkTypeBool) |
| Set/Get the AbortExecute flag for the process object. More...
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virtual vtkTypeBool | GetAbortExecute () |
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virtual void | AbortExecuteOn () |
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virtual void | AbortExecuteOff () |
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virtual void | SetProgress (double) |
| Set/Get the execution progress of a process object. More...
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virtual double | GetProgress () |
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void | UpdateProgress (double amount) |
| Update the progress of the process object. More...
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void | SetProgressText (const char *ptext) |
| Set the current text message associated with the progress state. More...
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virtual char * | GetProgressText () |
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virtual unsigned long | GetErrorCode () |
| The error code contains a possible error that occurred while reading or writing the file. More...
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virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name) |
| Set the input data arrays that this algorithm will process. More...
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virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType) |
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virtual void | SetInputArrayToProcess (int idx, vtkInformation *info) |
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virtual void | SetInputArrayToProcess (int idx, int port, int connection, const char *fieldAssociation, const char *attributeTypeorName) |
| String based versions of SetInputArrayToProcess(). More...
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vtkInformation * | GetInputArrayInformation (int idx) |
| Get the info object for the specified input array to this algorithm. More...
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void | RemoveAllInputs () |
| Remove all the input data. More...
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vtkDataObject * | GetOutputDataObject (int port) |
| Get the data object that will contain the algorithm output for the given port. More...
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vtkDataObject * | GetInputDataObject (int port, int connection) |
| Get the data object that will contain the algorithm input for the given port and given connection. More...
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virtual void | SetInputConnection (int port, vtkAlgorithmOutput *input) |
| Set the connection for the given input port index. More...
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virtual void | SetInputConnection (vtkAlgorithmOutput *input) |
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virtual void | AddInputConnection (int port, vtkAlgorithmOutput *input) |
| Add a connection to the given input port index. More...
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virtual void | AddInputConnection (vtkAlgorithmOutput *input) |
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virtual void | RemoveInputConnection (int port, vtkAlgorithmOutput *input) |
| Remove a connection from the given input port index. More...
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virtual void | RemoveInputConnection (int port, int idx) |
| Remove a connection given by index idx. More...
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virtual void | RemoveAllInputConnections (int port) |
| Removes all input connections. More...
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virtual void | SetInputDataObject (int port, vtkDataObject *data) |
| Sets the data-object as an input on the given port index. More...
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virtual void | SetInputDataObject (vtkDataObject *data) |
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virtual void | AddInputDataObject (int port, vtkDataObject *data) |
| Add the data-object as an input to this given port. More...
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virtual void | AddInputDataObject (vtkDataObject *data) |
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vtkAlgorithmOutput * | GetOutputPort (int index) |
| Get a proxy object corresponding to the given output port of this algorithm. More...
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vtkAlgorithmOutput * | GetOutputPort () |
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int | GetNumberOfInputConnections (int port) |
| Get the number of inputs currently connected to a port. More...
|
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int | GetTotalNumberOfInputConnections () |
| Get the total number of inputs for this algorithm. More...
|
|
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...
|
|
vtkAlgorithm * | GetInputAlgorithm (int port, int index) |
| Returns the algorithm connected to a port-index pair. More...
|
|
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...
|
|
virtual void | Update (int port) |
| Bring this algorithm's outputs up-to-date. More...
|
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virtual void | Update () |
|
virtual int | Update (int port, vtkInformationVector *requests) |
| This method enables the passing of data requests to the algorithm to be used during execution (in addition to bringing a particular port up-to-date). More...
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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]=nullptr) |
| Convenience method to update an algorithm after passing requests to its first output port. More...
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virtual int | UpdateExtent (const int extents[6]) |
| Convenience method to update an algorithm after passing requests to its first output port. More...
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virtual int | UpdateTimeStep (double time, int piece=-1, int numPieces=1, int ghostLevels=0, const int extents[6]=nullptr) |
| Convenience method to update an algorithm after passing requests to its first output port. More...
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virtual void | UpdateInformation () |
| Bring the algorithm's information up-to-date. More...
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virtual void | UpdateDataObject () |
| Create output object(s). More...
|
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virtual void | PropagateUpdateExtent () |
| Propagate meta-data upstream. More...
|
|
virtual void | UpdateWholeExtent () |
| Bring this algorithm's outputs up-to-date. More...
|
|
void | ConvertTotalInputToPortConnection (int ind, int &port, int &conn) |
| Convenience routine to convert from a linear ordering of input connections to a port/connection pair. More...
|
|
virtual void | SetReleaseDataFlag (int) |
| Turn release data flag on or off for all output ports. More...
|
|
virtual int | GetReleaseDataFlag () |
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void | ReleaseDataFlagOn () |
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void | ReleaseDataFlagOff () |
|
int | UpdateExtentIsEmpty (vtkInformation *pinfo, vtkDataObject *output) |
| This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0. More...
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int | UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType) |
|
int * | GetUpdateExtent () |
| These functions return the update extent for output ports that use 3D extents. More...
|
|
int * | GetUpdateExtent (int port) |
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void | GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
|
void | GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
|
void | GetUpdateExtent (int extent[6]) |
|
void | GetUpdateExtent (int port, int extent[6]) |
|
int | GetUpdatePiece () |
| These functions return the update extent for output ports that use piece extents. More...
|
|
int | GetUpdatePiece (int port) |
|
int | GetUpdateNumberOfPieces () |
|
int | GetUpdateNumberOfPieces (int port) |
|
int | GetUpdateGhostLevel () |
|
int | GetUpdateGhostLevel (int port) |
|
void | SetProgressObserver (vtkProgressObserver *) |
| If an ProgressObserver is set, the algorithm will report progress through it rather than directly. More...
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virtual vtkProgressObserver * | GetProgressObserver () |
|
| vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
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virtual void | DebugOn () |
| Turn debugging output on. More...
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virtual void | DebugOff () |
| Turn debugging output off. More...
|
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bool | GetDebug () |
| Get the value of the debug flag. More...
|
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void | SetDebug (bool debugFlag) |
| Set the value of the debug flag. More...
|
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virtual void | Modified () |
| Update the modification time for this object. More...
|
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virtual vtkMTimeType | GetMTime () |
| Return this object's modified time. More...
|
|
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) |
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vtkCommand * | GetCommand (unsigned long tag) |
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void | RemoveObserver (vtkCommand *) |
|
void | RemoveObservers (unsigned long event, vtkCommand *) |
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void | RemoveObservers (const char *event, vtkCommand *) |
|
vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
|
vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
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void | RemoveObserver (unsigned long tag) |
|
void | RemoveObservers (unsigned long event) |
|
void | RemoveObservers (const char *event) |
|
void | RemoveAllObservers () |
|
vtkTypeBool | HasObserver (unsigned long event) |
|
vtkTypeBool | HasObserver (const char *event) |
|
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) |
|
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...
|
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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 |
| Return the class name as a string. More...
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virtual void | Delete () |
| Delete a VTK object. More...
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virtual void | FastDelete () |
| Delete a reference to this object. More...
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void | InitializeObjectBase () |
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void | Print (ostream &os) |
| Print an object to an ostream. More...
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virtual void | PrintHeader (ostream &os, vtkIndent indent) |
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virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
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int | GetReferenceCount () |
| Return the current reference count of this object. More...
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void | SetReferenceCount (int) |
| Sets the reference count. More...
|
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void | PrintRevisions (ostream &) |
| Legacy. More...
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virtual vtkObjectBase * | NewInstanceInternal () const |
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| vtkEvenlySpacedStreamlines2D () |
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| ~vtkEvenlySpacedStreamlines2D () override |
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void | AddInput (vtkDataObject *) |
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int | RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override |
| This is called by the superclass. More...
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int | FillInputPortInformation (int, vtkInformation *) override |
| Fill the input port information objects for this algorithm. More...
|
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int | SetupOutput (vtkInformation *inInfo, vtkInformation *outInfo) |
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int | CheckInputs (vtkAbstractInterpolatedVelocityField *&func, int *maxCellSize) |
|
double | ConvertToLength (double interval, int unit, double cellLength) |
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void | InitializeSuperposedGrid (double *bounds) |
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void | AddToAllPoints (vtkPolyData *streamline) |
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void | AddToCurrentPoints (vtkIdType pointId) |
|
template<typename T > |
void | InitializePoints (T &points) |
|
void | InitializeMinPointIds () |
|
template<typename CellCheckerType > |
bool | ForEachCell (double *point, CellCheckerType checker, vtkPoints *points=nullptr, vtkDataArray *velocity=nullptr, int direction=1) |
|
template<int distanceType> |
bool | IsTooClose (double *point, vtkIdType cellId, vtkPoints *points, vtkDataArray *velocity, int direction) |
|
bool | IsLooping (double *point, vtkIdType cellId, vtkPoints *points, vtkDataArray *velocity, int direction) |
|
const char * | GetInputArrayToProcessName () |
|
int | ComputeCellLength (double *cellLength) |
|
| vtkPolyDataAlgorithm () |
|
| ~vtkPolyDataAlgorithm () override |
|
virtual int | RequestInformation (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) |
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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 |
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virtual void | SetNumberOfInputPorts (int n) |
| Set the number of input ports used by the algorithm. More...
|
|
virtual void | SetNumberOfOutputPorts (int n) |
| Set the number of output ports provided by the algorithm. More...
|
|
int | InputPortIndexInRange (int index, const char *action) |
|
int | OutputPortIndexInRange (int index, const char *action) |
|
int | GetInputArrayAssociation (int idx, vtkInformationVector **inputVector) |
| Get the assocition of the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
|
|
int | GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature. More...
|
|
int | GetInputArrayAssociation (int idx, vtkDataObject *input) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector) |
| Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature. More...
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input, int &association) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector) |
| Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
|
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature. More...
|
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association) |
|
vtkInformation * | GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector) |
| This method takes in an index (as specified in SetInputArrayToProcess) and a pipeline information vector. More...
|
|
virtual vtkExecutive * | CreateDefaultExecutive () |
| Create a default executive. More...
|
|
virtual void | SetErrorCode (unsigned long) |
| The error code contains a possible error that occurred while reading or writing the file. More...
|
|
void | ReportReferences (vtkGarbageCollector *) override |
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virtual void | SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input) |
| Replace the Nth connection on the given input port. More...
|
|
virtual void | SetNumberOfInputConnections (int port, int n) |
| Set the number of input connections on the given input port. More...
|
|
void | SetInputDataInternal (int port, vtkDataObject *input) |
| These methods are used by subclasses to implement methods to set data objects directly as input. More...
|
|
void | AddInputDataInternal (int port, vtkDataObject *input) |
|
| vtkObject () |
|
| ~vtkObject () override |
|
void | RegisterInternal (vtkObjectBase *, vtkTypeBool check) override |
|
void | UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override |
|
void | InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr) |
| These methods allow a command to exclusively grab all events. More...
|
|
void | InternalReleaseFocus () |
|
| vtkObjectBase () |
|
virtual | ~vtkObjectBase () |
|
virtual void | CollectRevisions (ostream &) |
|
| vtkObjectBase (const vtkObjectBase &) |
|
void | operator= (const vtkObjectBase &) |
|
Evenly spaced streamline generator for 2D.
vtkEvenlySpacedStreamlines2D is a filter that integrates a 2D vector field to generate evenly-spaced streamlines.
We implement the algorithm described in: Jobard, Bruno, and Wilfrid Lefer. "Creating evenly-spaced
streamlines of arbitrary density." Visualization in Scientific Computing '97. Springer Vienna, 1997. 43-55. The loop detection is described in: Liu, Zhanping, Robert Moorhead, and Joe Groner. "An advanced evenly-spaced streamline placement algorithm." IEEE Transactions on Visualization and Computer Graphics 12.5 (2006): 965-972.
The integration is performed using a specified integrator, by default Runge-Kutta2.
vtkEvenlySpacedStreamlines2D 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.
vtkEvenlySpacedStreamlines2D integrates streamlines both forward and backward. The integration for a streamline terminates upon exiting the flow field domain, or if the particle speed is reduced to a value less than a specified terminal speed, if the current streamline gets too close to other streamlines (vtkStreamTracer::FIXED_REASONS_FOR_TERMINATION_COUNT + 1) or if the streamline forms a loop (vtkStreamTracer::FIXED_REASONS_FOR_TERMINATION_COUNT). 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). We do not support Runge-Kutta45 (with an adaptive step size and error control) because a requirement of the algorithm is that sample points along a streamline be evenly spaced. These steps are in either LENGTH_UNIT or CELL_LENGTH_UNIT.
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.
vtkEvenlySpacedStreamlines2D supports integration through any type of 2D dataset.
The starting point, or the so-called 'seed', of the first streamline is set by setting StartPosition
- See also
- vtkStreamTracer vtkRibbonFilter vtkRuledSurfaceFilter vtkInitialValueProblemSolver vtkRungeKutta2 vtkRungeKutta4 vtkRungeKutta45 vtkTemporalStreamTracer vtkAbstractInterpolatedVelocityField vtkInterpolatedVelocityField vtkCellLocatorInterpolatedVelocityField
- Tests:
- vtkEvenlySpacedStreamlines2D (Tests)
Definition at line 116 of file vtkEvenlySpacedStreamlines2D.h.