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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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vtkContour3DLinearGrid * | NewInstance () const |
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void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses. More...
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void | SetValue (int i, double value) |
| Methods to set / get contour values. More...
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double | GetValue (int i) |
| Get the ith contour value. More...
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double * | GetValues () |
| Get a pointer to an array of contour values. More...
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void | GetValues (double *contourValues) |
| Fill a supplied list with contour values. More...
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void | SetNumberOfContours (int number) |
| Set the number of contours to place into the list. More...
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int | GetNumberOfContours () |
| Get the number of contours in the list of contour values. More...
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void | GenerateValues (int numContours, double range[2]) |
| Generate numContours equally spaced contour values between specified range. More...
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void | GenerateValues (int numContours, double rangeStart, double rangeEnd) |
| Generate numContours equally spaced contour values between specified range. More...
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virtual void | SetMergePoints (vtkTypeBool) |
| Indicate whether to merge coincident points. More...
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virtual vtkTypeBool | GetMergePoints () |
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virtual void | MergePointsOn () |
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virtual void | MergePointsOff () |
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virtual void | SetInterpolateAttributes (vtkTypeBool) |
| Indicate whether to interpolate input attributes onto the isosurface. More...
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virtual vtkTypeBool | GetInterpolateAttributes () |
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virtual void | InterpolateAttributesOn () |
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virtual void | InterpolateAttributesOff () |
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virtual void | SetComputeNormals (vtkTypeBool) |
| Indicate whether to compute output point normals. More...
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virtual vtkTypeBool | GetComputeNormals () |
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virtual void | ComputeNormalsOn () |
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virtual void | ComputeNormalsOff () |
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void | SetOutputPointsPrecision (int precision) |
| Set/get the desired precision for the output types. More...
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int | GetOutputPointsPrecision () const |
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vtkMTimeType | GetMTime () override |
| Overloaded GetMTime() because of delegation to the internal vtkContourValues class. More...
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virtual void | SetSequentialProcessing (vtkTypeBool) |
| Force sequential processing (i.e. More...
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virtual vtkTypeBool | GetSequentialProcessing () |
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virtual void | SequentialProcessingOn () |
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virtual void | SequentialProcessingOff () |
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int | GetNumberOfThreadsUsed () |
| Return the number of threads actually used during execution. More...
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bool | GetLargeIds () |
| Inform the user as to whether large ids were used during filter execution. 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...
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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 void | Update (int port) |
| Bring this algorithm's outputs up-to-date. More...
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virtual void | Update () |
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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]=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...
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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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virtual void | SetReleaseDataFlag (int) |
| Turn release data flag on or off for all output ports. More...
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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) |
| 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) |
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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) |
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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 () |
| These functions return the update extent for output ports that use piece extents. More...
|
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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 *) |
| If an ProgressObserver is set, the algorithm will report progress through it rather than directly. More...
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virtual vtkProgressObserver * | GetProgressObserver () |
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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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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) |
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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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vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
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vtkTypeBool | 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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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...
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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) |
|
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) |
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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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| vtkContour3DLinearGrid () |
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| ~vtkContour3DLinearGrid () override |
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int | RequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) override |
| This is called by the superclass. More...
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int | FillInputPortInformation (int port, vtkInformation *info) override |
| Fill the input port information objects for this algorithm. More...
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| vtkPolyDataAlgorithm () |
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| ~vtkPolyDataAlgorithm () override |
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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...
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int | FillOutputPortInformation (int port, vtkInformation *info) override |
| Fill the output port information objects for this algorithm. More...
|
|
| 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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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) |
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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...
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
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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...
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input, int &association) |
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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) |
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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...
|
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association) |
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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...
|
|
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...
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|
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 () |
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virtual void | CollectRevisions (ostream &) |
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| vtkObjectBase (const vtkObjectBase &) |
|
void | operator= (const vtkObjectBase &) |
|
fast generation of isosurface from 3D linear cells
vtkContour3DLinearGrid is a specialized filter that generates isocontours from an input vtkUnstructuredGrid consisting of 3D linear cells: tetrahedra, hexahedra, voxels, pyramids, and/or wedges. (The cells are linear in the sense that each cell edge is a straight line.) The filter is designed for high-speed, specialized operation. All other cell types are skipped and produce no output.
To use this filter you must specify an input unstructured grid, and one or more contour values. You can either use the method SetValue() to specify each contour value, or use GenerateValues() to generate a series of evenly spaced contours.
The filter performance varies depending on optional output information. Basically if point merging is required (when PointMerging, InterpolateAttributes, and/or ComputeNormals is enabled), a sorting process is required to eliminate duplicate output points in the isosurface. Otherwise when point merging is not required, a fast path process produces independent triangles representing the isosurface. In many situations the results of the fast path are quite good and do not require additional processing.
- Warning
- The fast path simply produces output points and triangles (the fast path executes when MergePoints if off; InterpolateAttributes is off; and ComputeNormals is off). Since the fast path does not merge points, it produces many more output points, typically on the order of 5-6x more than when MergePoints is enabled. Adding in the other options point merging, field interpolation, and normal generation results in additional performance impacts. By default the fast path is enabled.
-
Internal to this filter, a caching iterator is used to traverse the cells that compose the vtkUnstructuredGrid. Maximum performance is obtained if the cells are all of one type (i.e., input grid of homogeneous cell types); repeated switching from different types may have detrimental effects on performance.
-
For unstructured data, gradients are not computed. Normals are computed if requested; they are "pseudo-normals" in that the normals of output triangles that use a common point are averaged at the point. Alternatively use vtkPolyDataNormals to compute the surface normals.
-
The output of this filter is subtly different than the more general filter vtkContourGrid. vtkContourGrid eliminates small, degenerate triangles with concident points which are consequently not sent to the output. In practice this makes little impact on visual appearance but may have repercussions if the output is used for modelling and/or analysis.
-
Input cells that are not of 3D linear type (tetrahedron, hexahedron, wedge, pyramid, and voxel) are simply skipped and not processed.
-
The filter is templated on types of input and output points, and input scalar type. To reduce object file bloat, only real points (float,double) are processed, and a limited subset of scalar types.
-
This class has been threaded with vtkSMPTools. Using TBB or other non-sequential type (set in the CMake variable VTK_SMP_IMPLEMENTATION_TYPE) may improve performance significantly.
- See also
- vtkContourGrid vtkContourFilter vtkFlyingEdges3D vtkMarchingCubes vtkPolyDataNormals vtkStaticEdgeLocatorTemplate.h
- Tests:
- vtkContour3DLinearGrid (Tests)
Definition at line 100 of file vtkContour3DLinearGrid.h.