|
|
virtual void | SetRadius (double) |
| Specify the radius of influence of the signed distance function.
|
|
virtual double | GetRadius () |
| Specify the radius of influence of the signed distance function.
|
|
|
virtual void | SetHoleFilling (bool) |
| Enable hole filling.
|
|
virtual bool | GetHoleFilling () |
| Enable hole filling.
|
|
virtual void | HoleFillingOn () |
| Enable hole filling.
|
|
virtual void | HoleFillingOff () |
| Enable hole filling.
|
|
|
virtual void | SetComputeNormals (vtkTypeBool) |
| Set/Get the computation of normals.
|
|
virtual vtkTypeBool | GetComputeNormals () |
| Set/Get the computation of normals.
|
|
virtual void | ComputeNormalsOn () |
| Set/Get the computation of normals.
|
|
virtual void | ComputeNormalsOff () |
| Set/Get the computation of normals.
|
|
|
virtual void | SetComputeGradients (vtkTypeBool) |
| Set/Get the computation of gradients.
|
|
virtual vtkTypeBool | GetComputeGradients () |
| Set/Get the computation of gradients.
|
|
virtual void | ComputeGradientsOn () |
| Set/Get the computation of gradients.
|
|
virtual void | ComputeGradientsOff () |
| Set/Get the computation of gradients.
|
|
virtual vtkTypeBool | IsA (const char *type) |
| Return 1 if this class is the same type of (or a subclass of) the named class.
|
|
vtkPolyDataAlgorithm * | NewInstance () const |
|
void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses.
|
|
vtkTypeBool | ProcessRequest (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override |
| see vtkAlgorithm for details
|
|
vtkDataObject * | GetInput () |
|
vtkDataObject * | GetInput (int port) |
|
vtkPolyData * | GetPolyDataInput (int port) |
|
vtkPolyData * | GetOutput () |
| Get the output data object for a port on this algorithm.
|
|
vtkPolyData * | GetOutput (int) |
| Get the output data object for a port on this algorithm.
|
|
virtual void | SetOutput (vtkDataObject *d) |
| Get the output data object for a port on this algorithm.
|
|
void | SetInputData (vtkDataObject *) |
| Assign a data object as input.
|
|
void | SetInputData (int, vtkDataObject *) |
| Assign a data object as input.
|
|
void | AddInputData (vtkDataObject *) |
| Assign a data object as input.
|
|
void | AddInputData (int, vtkDataObject *) |
| Assign a data object as input.
|
|
virtual vtkTypeBool | IsA (const char *type) |
| Return 1 if this class is the same type of (or a subclass of) the named class.
|
|
vtkAlgorithm * | NewInstance () const |
|
void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses.
|
|
int | HasExecutive () |
| Check whether this algorithm has an assigned executive.
|
|
vtkExecutive * | GetExecutive () |
| Get this algorithm's executive.
|
|
virtual void | SetExecutive (vtkExecutive *executive) |
| Set this algorithm's executive.
|
|
virtual vtkTypeBool | ProcessRequest (vtkInformation *request, vtkInformationVector **inInfo, vtkInformationVector *outInfo) |
| Upstream/Downstream requests form the generalized interface through which executives invoke a algorithm's functionality.
|
|
vtkTypeBool | ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo) |
| Version of ProcessRequest() that is wrapped.
|
|
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.
|
|
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.
|
|
vtkInformation * | GetInputPortInformation (int port) |
| Get the information object associated with an input port.
|
|
vtkInformation * | GetOutputPortInformation (int port) |
| Get the information object associated with an output port.
|
|
int | GetNumberOfInputPorts () |
| Get the number of input ports used by the algorithm.
|
|
int | GetNumberOfOutputPorts () |
| Get the number of output ports provided by the algorithm.
|
|
void | SetProgress (double) |
| SetProgress is deprecated.
|
|
void | UpdateProgress (double amount) |
| Update the progress of the process object.
|
|
virtual void | SetInputArrayToProcess (int idx, int port, int connection, const char *fieldAssociation, const char *attributeTypeorName) |
| String based versions of SetInputArrayToProcess().
|
|
vtkInformation * | GetInputArrayInformation (int idx) |
| Get the info object for the specified input array to this algorithm.
|
|
void | RemoveAllInputs () |
| Remove all the input data.
|
|
vtkDataObject * | GetOutputDataObject (int port) |
| Get the data object that will contain the algorithm output for the given port.
|
|
vtkDataObject * | GetInputDataObject (int port, int connection) |
| Get the data object that will contain the algorithm input for the given port and given connection.
|
|
virtual void | RemoveInputConnection (int port, vtkAlgorithmOutput *input) |
| Remove a connection from the given input port index.
|
|
virtual void | RemoveInputConnection (int port, int idx) |
| Remove a connection given by index idx.
|
|
virtual void | RemoveAllInputConnections (int port) |
| Removes all input connections.
|
|
virtual void | SetInputDataObject (int port, vtkDataObject *data) |
| Sets the data-object as an input on the given port index.
|
|
virtual void | SetInputDataObject (vtkDataObject *data) |
|
virtual void | AddInputDataObject (int port, vtkDataObject *data) |
| Add the data-object as an input to this given port.
|
|
virtual void | AddInputDataObject (vtkDataObject *data) |
|
vtkAlgorithmOutput * | GetOutputPort (int index) |
| Get a proxy object corresponding to the given output port of this algorithm.
|
|
vtkAlgorithmOutput * | GetOutputPort () |
|
int | GetNumberOfInputConnections (int port) |
| Get the number of inputs currently connected to a port.
|
|
int | GetTotalNumberOfInputConnections () |
| Get the total number of inputs for this algorithm.
|
|
vtkAlgorithmOutput * | GetInputConnection (int port, int index) |
| Get the algorithm output port connected to an input port.
|
|
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.
|
|
vtkAlgorithm * | GetInputAlgorithm (int port, int index) |
| Returns the algorithm connected to a port-index pair.
|
|
vtkAlgorithm * | GetInputAlgorithm () |
| Equivalent to GetInputAlgorithm(0, 0).
|
|
vtkExecutive * | GetInputExecutive (int port, int index) |
| Returns the executive associated with a particular input connection.
|
|
vtkExecutive * | GetInputExecutive () |
| Equivalent to GetInputExecutive(0, 0)
|
|
vtkInformation * | GetInputInformation (int port, int index) |
| Return the information object that is associated with a particular input connection.
|
|
vtkInformation * | GetInputInformation () |
| Equivalent to GetInputInformation(0, 0)
|
|
vtkInformation * | GetOutputInformation (int port) |
| Return the information object that is associated with a particular output port.
|
|
virtual vtkTypeBool | 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).
|
|
virtual vtkTypeBool | Update (vtkInformation *requests) |
| Convenience method to update an algorithm after passing requests to its first output port.
|
|
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.
|
|
virtual int | UpdateExtent (const int extents[6]) |
| Convenience method to update an algorithm after passing requests to its first output port.
|
|
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.
|
|
virtual void | UpdateInformation () |
| Bring the algorithm's information up-to-date.
|
|
virtual void | UpdateDataObject () |
| Create output object(s).
|
|
virtual void | PropagateUpdateExtent () |
| Propagate meta-data upstream.
|
|
virtual void | UpdateWholeExtent () |
| Bring this algorithm's outputs up-to-date.
|
|
void | ConvertTotalInputToPortConnection (int ind, int &port, int &conn) |
| Convenience routine to convert from a linear ordering of input connections to a port/connection pair.
|
|
virtual vtkInformation * | GetInformation () |
| Set/Get the information object associated with this algorithm.
|
|
virtual void | SetInformation (vtkInformation *) |
| Set/Get the information object associated with this algorithm.
|
|
void | Register (vtkObjectBase *o) override |
| Participate in garbage collection.
|
|
void | UnRegister (vtkObjectBase *o) override |
| Participate in garbage collection.
|
|
virtual void | SetAbortExecute (vtkTypeBool) |
| Set/Get the AbortExecute flag for the process object.
|
|
virtual vtkTypeBool | GetAbortExecute () |
| Set/Get the AbortExecute flag for the process object.
|
|
virtual void | AbortExecuteOn () |
| Set/Get the AbortExecute flag for the process object.
|
|
virtual void | AbortExecuteOff () |
| Set/Get the AbortExecute flag for the process object.
|
|
virtual double | GetProgress () |
| Get the execution progress of a process object.
|
|
void | SetProgressShiftScale (double shift, double scale) |
| Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called.
|
|
virtual double | GetProgressShift () |
| Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called.
|
|
virtual double | GetProgressScale () |
| Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called.
|
|
void | SetProgressText (const char *ptext) |
| Set the current text message associated with the progress state.
|
|
virtual char * | GetProgressText () |
| Set the current text message associated with the progress state.
|
|
virtual unsigned long | GetErrorCode () |
| The error code contains a possible error that occurred while reading or writing the file.
|
|
virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name) |
| Set the input data arrays that this algorithm will process.
|
|
virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType) |
| Set the input data arrays that this algorithm will process.
|
|
virtual void | SetInputArrayToProcess (int idx, vtkInformation *info) |
| Set the input data arrays that this algorithm will process.
|
|
virtual void | SetInputConnection (int port, vtkAlgorithmOutput *input) |
| Set the connection for the given input port index.
|
|
virtual void | SetInputConnection (vtkAlgorithmOutput *input) |
| Set the connection for the given input port index.
|
|
virtual void | AddInputConnection (int port, vtkAlgorithmOutput *input) |
| Add a connection to the given input port index.
|
|
virtual void | AddInputConnection (vtkAlgorithmOutput *input) |
| Add a connection to the given input port index.
|
|
virtual void | Update (int port) |
| Bring this algorithm's outputs up-to-date.
|
|
virtual void | Update () |
| Bring this algorithm's outputs up-to-date.
|
|
virtual void | SetReleaseDataFlag (int) |
| Turn release data flag on or off for all output ports.
|
|
virtual int | GetReleaseDataFlag () |
| Turn release data flag on or off for all output ports.
|
|
void | ReleaseDataFlagOn () |
| Turn release data flag on or off for all output ports.
|
|
void | ReleaseDataFlagOff () |
| Turn release data flag on or off for all output ports.
|
|
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.
|
|
int | UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType) |
| This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0.
|
|
int * | GetUpdateExtent () |
| These functions return the update extent for output ports that use 3D extents.
|
|
int * | GetUpdateExtent (int port) |
| These functions return the update extent for output ports that use 3D extents.
|
|
void | GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
| These functions return the update extent for output ports that use 3D extents.
|
|
void | GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
| These functions return the update extent for output ports that use 3D extents.
|
|
void | GetUpdateExtent (int extent[6]) |
| These functions return the update extent for output ports that use 3D extents.
|
|
void | GetUpdateExtent (int port, int extent[6]) |
| These functions return the update extent for output ports that use 3D extents.
|
|
int | GetUpdatePiece () |
| These functions return the update extent for output ports that use piece extents.
|
|
int | GetUpdatePiece (int port) |
| These functions return the update extent for output ports that use piece extents.
|
|
int | GetUpdateNumberOfPieces () |
| These functions return the update extent for output ports that use piece extents.
|
|
int | GetUpdateNumberOfPieces (int port) |
| These functions return the update extent for output ports that use piece extents.
|
|
int | GetUpdateGhostLevel () |
| These functions return the update extent for output ports that use piece extents.
|
|
int | GetUpdateGhostLevel (int port) |
| These functions return the update extent for output ports that use piece extents.
|
|
void | SetProgressObserver (vtkProgressObserver *) |
| If an ProgressObserver is set, the algorithm will report progress through it rather than directly.
|
|
virtual vtkProgressObserver * | GetProgressObserver () |
| If an ProgressObserver is set, the algorithm will report progress through it rather than directly.
|
|
| vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
|
virtual void | DebugOn () |
| Turn debugging output on.
|
|
virtual void | DebugOff () |
| Turn debugging output off.
|
|
bool | GetDebug () |
| Get the value of the debug flag.
|
|
void | SetDebug (bool debugFlag) |
| Set the value of the debug flag.
|
|
virtual void | Modified () |
| Update the modification time for this object.
|
|
virtual vtkMTimeType | GetMTime () |
| Return this object's modified time.
|
|
void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses.
|
|
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) |
|
int | InvokeEvent (unsigned long event) |
|
int | InvokeEvent (const char *event) |
|
unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
|
unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
|
vtkCommand * | GetCommand (unsigned long tag) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
|
void | RemoveObserver (vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
|
void | RemoveObservers (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
|
void | RemoveObservers (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
|
vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
|
vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
|
|
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.
|
|
template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
| Overloads to AddObserver that allow developers to add class member functions as callbacks for events.
|
|
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.
|
|
int | InvokeEvent (unsigned long event, void *callData) |
| This method invokes an event and return whether the event was aborted or not.
|
|
int | InvokeEvent (const char *event, void *callData) |
| This method invokes an event and return whether the event was aborted or not.
|
|
const char * | GetClassName () const |
| Return the class name as a string.
|
|
virtual vtkTypeBool | IsA (const char *name) |
| Return 1 if this class is the same type of (or a subclass of) the named class.
|
|
virtual vtkIdType | GetNumberOfGenerationsFromBase (const char *name) |
| Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
|
|
virtual void | Delete () |
| Delete a VTK object.
|
|
virtual void | FastDelete () |
| Delete a reference to this object.
|
|
void | InitializeObjectBase () |
|
void | Print (ostream &os) |
| Print an object to an ostream.
|
|
virtual void | Register (vtkObjectBase *o) |
| Increase the reference count (mark as used by another object).
|
|
virtual void | UnRegister (vtkObjectBase *o) |
| Decrease the reference count (release by another object).
|
|
int | GetReferenceCount () |
| Return the current reference count of this object.
|
|
void | SetReferenceCount (int) |
| Sets the reference count.
|
|
bool | GetIsInMemkind () const |
| A local state flag that remembers whether this object lives in the normal or extended memory space.
|
|
virtual void | PrintHeader (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses.
|
|
virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses.
|
|
|
| vtkExtractSurface () |
|
| ~vtkExtractSurface () override |
|
int | RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override |
| This is called by the superclass.
|
|
int | RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override |
| This is called by the superclass.
|
|
int | FillInputPortInformation (int port, vtkInformation *info) override |
| Fill the input port information objects for this algorithm.
|
|
virtual vtkObjectBase * | NewInstanceInternal () const |
|
| vtkPolyDataAlgorithm () |
|
| ~vtkPolyDataAlgorithm () override |
|
virtual int | RequestInformation (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) |
|
virtual int | RequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) |
| This is called by the superclass.
|
|
virtual int | RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
| This is called by the superclass.
|
|
int | FillOutputPortInformation (int port, vtkInformation *info) override |
| Fill the output port information objects for this algorithm.
|
|
int | FillInputPortInformation (int port, vtkInformation *info) override |
| Fill the input port information objects for this algorithm.
|
|
virtual vtkObjectBase * | NewInstanceInternal () const |
|
| vtkAlgorithm () |
|
| ~vtkAlgorithm () override |
|
virtual int | FillInputPortInformation (int port, vtkInformation *info) |
| Fill the input port information objects for this algorithm.
|
|
virtual int | FillOutputPortInformation (int port, vtkInformation *info) |
| Fill the output port information objects for this algorithm.
|
|
virtual void | SetNumberOfInputPorts (int n) |
| Set the number of input ports used by the algorithm.
|
|
virtual void | SetNumberOfOutputPorts (int n) |
| Set the number of output ports provided by the algorithm.
|
|
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.
|
|
vtkInformation * | GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector) |
| This method takes in an index (as specified in SetInputArrayToProcess) and a pipeline information vector.
|
|
virtual vtkExecutive * | CreateDefaultExecutive () |
| Create a default executive.
|
|
void | ReportReferences (vtkGarbageCollector *) override |
|
virtual void | SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input) |
| Replace the Nth connection on the given input port.
|
|
virtual void | SetNumberOfInputConnections (int port, int n) |
| Set the number of input connections on the given input port.
|
|
void | SetInputDataInternal (int port, vtkDataObject *input) |
| These methods are used by subclasses to implement methods to set data objects directly as input.
|
|
void | AddInputDataInternal (int port, vtkDataObject *input) |
|
int | GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature.
|
|
int | GetInputArrayAssociation (int idx, vtkDataObject *input) |
| Filters that have multiple connections on one port can use this signature.
|
|
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.
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
| Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature.
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
| Filters that have multiple connections on one port can use this signature.
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input) |
| Filters that have multiple connections on one port can use this signature.
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input, int &association) |
| Filters that have multiple connections on one port can use this signature.
|
|
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.
|
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
| Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
|
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature.
|
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
| Filters that have multiple connections on one port can use this signature.
|
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input) |
| Filters that have multiple connections on one port can use this signature.
|
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association) |
| Filters that have multiple connections on one port can use this signature.
|
|
virtual void | SetErrorCode (unsigned long) |
| The error code contains a possible error that occurred while reading or writing the file.
|
|
| 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.
|
|
void | InternalReleaseFocus () |
| These methods allow a command to exclusively grab all events.
|
|
| vtkObjectBase () |
|
virtual | ~vtkObjectBase () |
|
virtual void | RegisterInternal (vtkObjectBase *, vtkTypeBool check) |
|
virtual void | UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) |
|
virtual void | ReportReferences (vtkGarbageCollector *) |
|
| vtkObjectBase (const vtkObjectBase &) |
|
void | operator= (const vtkObjectBase &) |
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generate zero-crossing isosurface from truncated signed distance volume
This filter extracts the zero-crossing isosurface from a truncated signed distance function TSDF. The TSDF is sampled across a volume, and is extracted using a modified version of the Flying Edges (FE) algorithm for increased speed, and to support multithreading. To use the filter, an input volume should be assigned, which may have special values indicating empty and/or unseen portions of the volume. These values are equal to +/- radius value of the signed distance function, and should be consistent with any filters used to generate the input volume (e.g., vtkSignedDistance).
The Flying Edges algorithm is modified to deal with the nature of the truncated, signed distance function. Being truncated, the distance function typically is not computed throughout the volume, rather the special data values "unseen" and/or "empty" maybe assigned to distant or bordering voxels. The implications of this are that this implementation may produce non-closed, non-manifold surfaces, which is what is required to extract surfaces.
More specifically, voxels may exist in one of three states: 1) within the TSDF, which extends +/-Radius from a generating geometry (typically a point cloud); 2) in the empty state, in which it is known that the surface does not exist; and 3) the unseen state, where a surface may exist but not enough information is known to be certain. Such situations arise, for example, when laser scanners generate point clouds, and the propagation of the laser beam "carves" out regions where no geometry exists (thereby defining empty space). Furthermore, areas in which the beam are occluded by geometry are known as "unseen" and the boundary between empty and unseen can be processed to produced a portion of the output isosurface (this is called hole filling).
- Warning
- 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.
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Empty regions are expected to have a data value -(this->Radius+FLT_EPSILON). Unseen regions are expected to have a data value (this->Radius+FLT_EPSILON). Near regions have data values d such that: -(this->Radius+FLT_EPSILON) < d (this->Radius+FLT_EPSILON).
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Notes on the implementation:
1. This is a lightly modified version of vtkFlyingEdges3D. Some design goals
included minimizing the impact on the FE algorithm, and not adding extra
memory requirements.
2. It presumes an isocontour value=0.0 (the zero crossing of a signed
distance function).
3. The major modifications are to the edge cases. In Flying Edges, a single
byte represents the case of an edge, and within that byte only 2 bits
are needed (the extra six bytes are not used). Here, these unused bytes
are repurposed to represent the "state" of the edge, whether it is
1) near to the TSDF; 2) in an empty state; or 3) unseen state.
4. Since these now-used bits encode extra state information, masking and
related methods are modified from FE to tease apart the edge cases from
the edge state.
5. Voxels with edges marked "empty" are not processed, i.e., no output
triangle primitives are generated. Depending on whether hole filling is
enabled, voxels with edges marked "unseen" may not be processed either.
6. As a result of #1 and #5, and the desire to keep the implementation simple,
it is possible to produce output points which are not used by any output
triangle.
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This algorithm loosely follows the most excellent paper by Curless and Levoy: "A Volumetric Method for Building Complex Models from Range
Images."
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This algorithm differs from the paper cited above in an important way. The Curless & Levoy algorithm is designed to create watertight surfaces, while this modified algorithm may not do so as the generating surface is not assumed to be closed.
- See also
- vtkSignedDistance vtkFlyingEdges3D
- Online Examples:
Definition at line 149 of file vtkExtractSurface.h.