VTK
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A concrete class for obtaining the interpolated velocity values at a point. More...
#include <vtkCellLocatorInterpolatedVelocityField.h>
Public Types | |
typedef vtkCompositeInterpolatedVelocityField | Superclass |
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typedef vtkAbstractInterpolatedVelocityField | Superclass |
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typedef vtkFunctionSet | Superclass |
Public Member Functions | |
virtual int | IsA (const char *type) |
vtkCellLocatorInterpolatedVelocityField * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) |
void | SetCellLocatorPrototype (vtkAbstractCellLocator *prototype) |
virtual void | CopyParameters (vtkAbstractInterpolatedVelocityField *from) |
virtual void | AddDataSet (vtkDataSet *dataset) |
virtual int | FunctionValues (double *x, double *f) |
virtual void | SetLastCellId (vtkIdType c, int dataindex) |
virtual vtkAbstractCellLocator * | GetLastCellLocator () |
virtual vtkAbstractCellLocator * | GetCellLocatorPrototype () |
virtual void | SetLastCellId (vtkIdType c) |
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vtkCompositeInterpolatedVelocityField * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) |
virtual int | GetLastDataSetIndex () |
virtual vtkDataSet * | GetLastDataSet () |
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vtkAbstractInterpolatedVelocityField * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) |
void | SelectVectors (int fieldAssociation, const char *fieldName) |
void | ClearLastCellId () |
virtual void | SetCaching (bool) |
virtual bool | GetCaching () |
virtual int | GetCacheHit () |
virtual int | GetCacheMiss () |
virtual vtkIdType | GetLastCellId () |
virtual char * | GetVectorsSelection () |
virtual int | GetVectorsType () |
virtual void | SetNormalizeVector (bool) |
virtual bool | GetNormalizeVector () |
int | GetLastWeights (double *w) |
int | GetLastLocalCoordinates (double pcoords[3]) |
Static Public Member Functions | |
static int | IsTypeOf (const char *type) |
static vtkCellLocatorInterpolatedVelocityField * | SafeDownCast (vtkObjectBase *o) |
static vtkCellLocatorInterpolatedVelocityField * | New () |
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static int | IsTypeOf (const char *type) |
static vtkCompositeInterpolatedVelocityField * | SafeDownCast (vtkObjectBase *o) |
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static int | IsTypeOf (const char *type) |
static vtkAbstractInterpolatedVelocityField * | SafeDownCast (vtkObjectBase *o) |
Protected Member Functions | |
virtual vtkObjectBase * | NewInstanceInternal () const |
vtkCellLocatorInterpolatedVelocityField () | |
~vtkCellLocatorInterpolatedVelocityField () | |
int | FunctionValues (vtkDataSet *ds, vtkAbstractCellLocator *loc, double *x, double *f) |
virtual int | FunctionValues (vtkDataSet *ds, double *x, double *f) |
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vtkCompositeInterpolatedVelocityField () | |
~vtkCompositeInterpolatedVelocityField () | |
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vtkAbstractInterpolatedVelocityField () | |
~vtkAbstractInterpolatedVelocityField () | |
virtual void | SetVectorsSelection (const char *) |
void | FastCompute (vtkDataArray *vectors, double f[3]) |
bool | InterpolatePoint (vtkPointData *outPD, vtkIdType outIndex) |
vtkGenericCell * | GetLastCell () |
Additional Inherited Members | |
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int | LastDataSetIndex |
vtkCompositeInterpolatedVelocityFieldDataSetsType * | DataSets |
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int | CacheHit |
int | CacheMiss |
int | WeightsSize |
bool | Caching |
bool | NormalizeVector |
int | VectorsType |
char * | VectorsSelection |
double * | Weights |
double | LastPCoords [3] |
vtkIdType | LastCellId |
vtkDataSet * | LastDataSet |
vtkGenericCell * | Cell |
vtkGenericCell * | GenCell |
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static const double | TOLERANCE_SCALE |
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static const double | TOLERANCE_SCALE |
A concrete class for obtaining the interpolated velocity values at a point.
vtkCellLocatorInterpolatedVelocityField acts as a continuous velocity field via cell interpolation on a vtkDataSet, NumberOfIndependentVariables = 4 (x,y,z,t) and NumberOfFunctions = 3 (u,v,w). As a concrete sub-class of vtkCompositeInterpolatedVelocityField, it adopts vtkAbstractCellLocator's sub-classes, e.g., vtkCellLocator and vtkModifiedBSPTree, without the use of vtkPointLocator ( employed by vtkDataSet/vtkPointSet::FindCell() in vtkInterpolatedVelocityField ). vtkCellLocatorInterpolatedVelocityField adopts one level of cell caching. Specifically, if the next point is still within the previous cell, cell location is then simply skipped and vtkCell:: EvaluatePosition() is called to obtain the new parametric coordinates and weights that are used to interpolate the velocity function values across the vertices of this cell. Otherwise a global cell (the target containing the next point) location is instead directly invoked, without exploiting the clue that vtkInterpolatedVelocityField makes use of from the previous cell (an immediate neighbor). Although ignoring the neighbor cell may incur a relatively high computational cost, vtkCellLocatorInterpolatedVelocityField is more robust in locating the target cell than its sibling class vtkInterpolatedVelocityField.
Definition at line 57 of file vtkCellLocatorInterpolatedVelocityField.h.
Definition at line 61 of file vtkCellLocatorInterpolatedVelocityField.h.
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Reimplemented from vtkCompositeInterpolatedVelocityField.
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Reimplemented from vtkCompositeInterpolatedVelocityField.
vtkCellLocatorInterpolatedVelocityField* vtkCellLocatorInterpolatedVelocityField::NewInstance | ( | ) | const |
void vtkCellLocatorInterpolatedVelocityField::PrintSelf | ( | ostream & | os, |
vtkIndent | indent | ||
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Construct a vtkCellLocatorInterpolatedVelocityField without an initial dataset. Caching is set on and LastCellId is set to -1.
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Get the cell locator attached to the most recently visited dataset.
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Get the prototype of the cell locator that is used for interpolating the velocity field during integration.
void vtkCellLocatorInterpolatedVelocityField::SetCellLocatorPrototype | ( | vtkAbstractCellLocator * | prototype | ) |
Set a prototype of the cell locator that is used for interpolating the velocity field during integration.
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Import parameters. Sub-classes can add more after chaining.
Reimplemented from vtkAbstractInterpolatedVelocityField.
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Add a dataset coupled with a cell locator (of type vtkAbstractCellLocator) for vector function evaluation. Note the use of a vtkAbstractCellLocator enables robust cell location. If more than one dataset is added, the evaluation point is searched in all until a match is found. THIS FUNCTION DOES NOT CHANGE THE REFERENCE COUNT OF dataset FOR THREAD SAFETY REASONS.
Implements vtkCompositeInterpolatedVelocityField.
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Evaluate the velocity field f at point (x, y, z).
Implements vtkAbstractInterpolatedVelocityField.
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Set the cell id cached by the last evaluation within a specified dataset.
Implements vtkAbstractInterpolatedVelocityField.
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Set the cell id cached by the last evaluation.
Reimplemented from vtkAbstractInterpolatedVelocityField.
Definition at line 102 of file vtkCellLocatorInterpolatedVelocityField.h.
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Evaluate the velocity field f at point (x, y, z) in a specified dataset (actually of type vtkPointSet only) through the use of the associated vtkAbstractCellLocator::FindCell() (instead of involving vtkPointLocator) to locate the next cell if the given point is outside the current cell.
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Evaluate the velocity field f at point (x, y, z) in a specified dataset (of type vtkImageData or vtkRectilinearGrid only) by invoking FindCell() to locate the next cell if the given point is outside the current cell.
Reimplemented from vtkAbstractInterpolatedVelocityField.
Definition at line 125 of file vtkCellLocatorInterpolatedVelocityField.h.