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virtual void | Initialize (vtkAbstractPointLocator *loc, vtkDataSet *ds, vtkPointData *pd) |
| Initialize the kernel. More...
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virtual vtkIdType | ComputeBasis (double x[3], vtkIdList *pIds, vtkIdType ptId=0)=0 |
| Given a point x (and optional associated point id), determine the points around x which form an interpolation basis. More...
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virtual vtkIdType | ComputeWeights (double x[3], vtkIdList *pIds, vtkDoubleArray *weights)=0 |
| Given a point x, and a list of basis points pIds, compute interpolation weights associated with these basis points. More...
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| vtkAbstractTypeMacro (vtkInterpolationKernel, vtkObject) |
| Standard method for type and printing. More...
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void | PrintSelf (ostream &os, vtkIndent indent) |
| Standard method for type and printing. More...
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virtual void | SetRequiresInitialization (bool) |
| Indicate whether the kernel needs initialization. More...
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virtual bool | GetRequiresInitialization () |
| Indicate whether the kernel needs initialization. More...
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virtual void | RequiresInitializationOn () |
| Indicate whether the kernel needs initialization. More...
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virtual void | RequiresInitializationOff () |
| Indicate whether the kernel needs initialization. More...
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| vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
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virtual void | DebugOn () |
| Turn debugging output on. More...
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virtual void | DebugOff () |
| Turn debugging output off. More...
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bool | GetDebug () |
| Get the value of the debug flag. More...
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void | SetDebug (bool debugFlag) |
| Set the value of the debug flag. More...
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virtual void | Modified () |
| Update the modification time for this object. More...
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virtual vtkMTimeType | GetMTime () |
| Return this object's modified time. More...
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void | RemoveObserver (unsigned long tag) |
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void | RemoveObservers (unsigned long event) |
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void | RemoveObservers (const char *event) |
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void | RemoveAllObservers () |
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int | HasObserver (unsigned long event) |
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int | HasObserver (const char *event) |
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int | InvokeEvent (unsigned long event) |
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int | InvokeEvent (const char *event) |
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unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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vtkCommand * | GetCommand (unsigned long tag) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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void | RemoveObserver (vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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void | RemoveObservers (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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void | RemoveObservers (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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int | HasObserver (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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int | HasObserver (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f) |
| Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
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template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
| Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
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template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
| Allow user to set the AbortFlagOn() with the return value of the callback method. More...
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int | InvokeEvent (unsigned long event, void *callData) |
| This method invokes an event and return whether the event was aborted or not. More...
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int | InvokeEvent (const char *event, void *callData) |
| This method invokes an event and return whether the event was aborted or not. More...
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const char * | GetClassName () const |
| Return the class name as a string. More...
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virtual vtkTypeBool | IsA (const char *name) |
| Return 1 if this class is the same type of (or a subclass of) the named class. 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 | Register (vtkObjectBase *o) |
| Increase the reference count (mark as used by another object). More...
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virtual void | UnRegister (vtkObjectBase *o) |
| Decrease the reference count (release by another object). More...
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int | GetReferenceCount () |
| Return the current reference count of this object. More...
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void | SetReferenceCount (int) |
| Sets the reference count. More...
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void | PrintRevisions (ostream &) |
| Legacy. More...
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virtual void | PrintHeader (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses. More...
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virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses. More...
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base class for interpolation kernels
vtkInterpolationKernel specifies an abstract interface for interpolation kernels. An interpolation kernel is used to produce an interpolated data value at a point X from the points + data in a local neighborhood surounding X. For example, given the N nearest points surrounding X, the interpolation kernel provides N weights, which when combined with the N data values associated with these nearest points, produces an interpolated data value at point X.
Note that various kernel initialization methods are provided. The basic method requires providing a point locator to accelerate neigborhood queries. Some kernels may refer back to the original dataset, or the point attribute data associated with the dataset. The initialization method enables different styles of initialization and is kernel-dependent.
Typically the kernels are invoked in two parts: first, the basis is computed using the supplied point locator and dataset. This basis is a local footprint of point surrounding a poitnX. In this footprint are the neighboring points used to compute the interpolation weights. Then, the weights are computed from points forming the basis. However, advanced users can develop their own basis, skipping the ComputeBasis() method, and then invoke ComputeWeights() directly.
- Warning
- The ComputeBasis() and ComputeWeights() methods must be thread safe as they are used in threaded algorithms.
- See also
- vtkPointInterpolator vtkPointInterpolator2D vtkGeneralizedKernel vtkGaussianKernel vtkSPHKernel vtkShepardKernel vtkVoronoiKernel
Definition at line 64 of file vtkInterpolationKernel.h.