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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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vtkEllipsoidalGaussianKernel * | 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 | Initialize (vtkAbstractPointLocator *loc, vtkDataSet *ds, vtkPointData *pd) override |
| Initialize the kernel. More...
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vtkIdType | ComputeWeights (double x[3], vtkIdList *pIds, vtkDoubleArray *prob, vtkDoubleArray *weights) override |
| Given a point x, a list of basis points pIds, and a probability weighting function prob, compute interpolation weights associated with these basis points. More...
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virtual void | SetUseNormals (bool) |
| Specify whether vector values should be used to affect the shape of the Gaussian distribution. More...
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virtual bool | GetUseNormals () |
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virtual void | UseNormalsOn () |
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virtual void | UseNormalsOff () |
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virtual void | SetNormalsArrayName (vtkStdString) |
| Specify the normals array name. More...
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virtual vtkStdString | GetNormalsArrayName () |
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virtual void | SetUseScalars (bool) |
| Specify whether scalar values should be used to scale the weights. More...
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virtual bool | GetUseScalars () |
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virtual void | UseScalarsOn () |
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virtual void | UseScalarsOff () |
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virtual void | SetScalarsArrayName (vtkStdString) |
| Specify the scalars array name. More...
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virtual vtkStdString | GetScalarsArrayName () |
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virtual void | SetScaleFactor (double) |
| Multiply the Gaussian splat distribution by this value. More...
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virtual double | GetScaleFactor () |
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virtual void | SetSharpness (double) |
| Set / Get the sharpness (i.e., falloff) of the Gaussian. More...
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virtual double | GetSharpness () |
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virtual void | SetEccentricity (double) |
| Set / Get the eccentricity of the ellipsoidal Gaussian. More...
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virtual double | GetEccentricity () |
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virtual vtkIdType | ComputeWeights (double x[3], vtkIdList *pIds, vtkDoubleArray *prob, vtkDoubleArray *weights)=0 |
| Given a point x, a list of basis points pIds, and a probability weighting function prob, compute interpolation weights associated with these basis points. More...
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vtkIdType | ComputeWeights (double x[3], vtkIdList *pIds, vtkDoubleArray *weights) override |
| Given a point x, and a list of basis points pIds, compute interpolation weights associated with these basis points. More...
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vtkGeneralizedKernel * | 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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vtkIdType | ComputeBasis (double x[3], vtkIdList *pIds, vtkIdType ptId=0) override |
| Based on the kernel style, invoke the appropriate locator method to obtain the points making up the basis. More...
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vtkIdType | ComputeWeights (double x[3], vtkIdList *pIds, vtkDoubleArray *weights) override |
| Given a point x, and a list of basis points pIds, compute interpolation weights associated with these basis points. More...
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virtual void | SetKernelFootprint (int) |
| Specify the interpolation basis style. More...
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virtual int | GetKernelFootprint () |
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void | SetKernelFootprintToRadius () |
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void | SetKernelFootprintToNClosest () |
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virtual void | SetRadius (double) |
| If the interpolation basis style is Radius, then this method specifies the radius within which the basis points must lie. More...
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virtual double | GetRadius () |
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virtual void | SetNumberOfPoints (int) |
| If the interpolation basis style is NClosest, then this method specifies the number of the closest points used to form the interpolation basis. More...
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virtual int | GetNumberOfPoints () |
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virtual void | SetNormalizeWeights (bool) |
| Indicate whether the interpolation weights should be normalized after they are computed. More...
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virtual bool | GetNormalizeWeights () |
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virtual void | NormalizeWeightsOn () |
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virtual void | NormalizeWeightsOff () |
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| vtkAbstractTypeMacro (vtkInterpolationKernel, vtkObject) |
| Standard method for type and printing. More...
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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 | SetRequiresInitialization (bool) |
| Indicate whether the kernel needs initialization. More...
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virtual bool | GetRequiresInitialization () |
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virtual void | RequiresInitializationOn () |
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virtual void | RequiresInitializationOff () |
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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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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) |
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vtkTypeBool | HasObserver (const char *event) |
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template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f) |
| 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) |
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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) |
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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 vtkIdType | GetNumberOfGenerationsFromBase (const char *name) |
| Given a 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). 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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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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an ellipsoidal Gaussian interpolation kernel
vtkEllipsoidalGaussianKernel is an interpolation kernel that returns the weights for all points found in the ellipsoid defined by radius R in combination with local data (normals and/or scalars). For example, "pancake" weightings (the local normal parallel to the minimum ellisoidal axis); or "needle" weightings (the local normal parallel to the maximum ellipsoidal axis) are possible. (Note that spherical Gaussian weightings are more efficiently computed using vtkGaussianKernel.)
The ellipsoidal Gaussian can be described by:
W(x) = S * exp( -( Sharpness^2 * ((rxy/E)**2 + z**2)/R**2) )
where S is the local scalar value; E is a user-defined eccentricity factor that controls the elliptical shape of the splat; z is the distance of the current voxel sample point along the local normal N; and rxy is the distance to neighbor point x in the direction prependicular to N.
- Warning
- The weights are normalized so that SUM(Wi) = 1. If a neighbor point p precisely lies on the point to be interpolated, then the interpolated point takes on the values associated with p.
- See also
- vtkPointInterpolator vtkInterpolationKernel vtkGeneralizedKernel vtkGaussianKernel vtkVoronoiKernel vtkSPHKernel vtkShepardKernel
Definition at line 58 of file vtkEllipsoidalGaussianKernel.h.