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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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vtkTemporalInterpolatedVelocityField * | 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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int | FunctionValues (double *x, double *u) override |
| Evaluate the velocity field, f, at (x, y, z, t). More...
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int | FunctionValuesAtT (int T, double *x, double *u) |
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void | SelectVectors (const char *fieldName) |
| If you want to work with an arbitrary vector array, then set its name here. More...
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void | SetDataSetAtTime (int I, int N, double T, vtkDataSet *dataset, bool staticdataset) |
| In order to use this class, two sets of data must be supplied, corresponding to times T1 and T2. More...
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bool | GetCachedCellIds (vtkIdType id[2], int ds[2]) |
| Between iterations of the Particle Tracer, Id's of the Cell are stored and then at the start of the next particle the Ids are set to 'pre-fill' the cache. More...
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void | SetCachedCellIds (vtkIdType id[2], int ds[2]) |
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void | ClearCache () |
| Set the last cell id to -1 so that the next search does not start from the previous cell. More...
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int | TestPoint (double *x) |
| A utility function which evaluates the point at T1, T2 to see if it is inside the data at both times or only one. More...
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int | QuickTestPoint (double *x) |
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virtual double * | GetLastGoodVelocity () |
| If an interpolation was successful, we can retrieve the last computed value from here. More...
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virtual void | GetLastGoodVelocity (double &, double &, double &) |
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virtual void | GetLastGoodVelocity (double[3]) |
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virtual double | GetCurrentWeight () |
| Get the most recent weight between 0->1 from T1->T2. More...
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bool | InterpolatePoint (vtkPointData *outPD1, vtkPointData *outPD2, vtkIdType outIndex) |
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bool | InterpolatePoint (int T, vtkPointData *outPD1, vtkIdType outIndex) |
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bool | GetVorticityData (int T, double pcoords[3], double *weights, vtkGenericCell *&cell, vtkDoubleArray *cellVectors) |
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void | ShowCacheResults () |
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bool | IsStatic (int datasetIndex) |
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void | AdvanceOneTimeStep () |
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vtkFunctionSet * | NewInstance () const |
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virtual int | GetNumberOfFunctions () |
| Return the number of functions. More...
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virtual int | GetNumberOfIndependentVariables () |
| Return the number of independent variables. 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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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 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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A helper class for interpolating between times during particle tracing.
vtkTemporalInterpolatedVelocityField is a general purpose helper for the temporal particle tracing code (vtkTemporalStreamTracer)
It maintains two copies of vtkCachingInterpolatedVelocityField internally and uses them to obtain velocity values at time T0 and T1.
In fact the class does quite a bit more than this because when the geometry of the datasets is the same at T0 and T1, we can re-use cached cell Ids and weights used in the cell interpolation routines. Additionally, the same weights can be used when interpolating (point) scalar values and computing vorticity etc.
- Warning
- vtkTemporalInterpolatedVelocityField is probably not thread safe. A new instance should be created by each thread.
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Datasets are added in lists. The list for T1 must be idential to that for T0 in structure/topology and dataset order, and any datasets marked as static, must remain so for all T - changing a dataset from static to dynamic between time steps will result in undefined behaviour (=crash probably)
- See also
- vtkCachingInterpolatedVelocityField vtkTemporalStreamTracer
Definition at line 68 of file vtkTemporalInterpolatedVelocityField.h.