VTK
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A helper class for interpolating between times during particle tracing. More...
#include <vtkTemporalInterpolatedVelocityField.h>
Public Types | |
typedef vtkFunctionSet | Superclass |
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typedef vtkObject | Superclass |
Public Member Functions | |
virtual int | IsA (const char *type) |
vtkTemporalInterpolatedVelocityField * | NewInstance () const |
virtual void | PrintSelf (ostream &os, vtkIndent indent) |
void | SetDataSetAtTime (int I, int N, double T, vtkDataSet *dataset, bool staticdataset) |
void | ClearCache () |
bool | InterpolatePoint (vtkPointData *outPD1, vtkPointData *outPD2, vtkIdType outIndex) |
bool | InterpolatePoint (int T, vtkPointData *outPD1, vtkIdType outIndex) |
bool | GetVorticityData (int T, double pcoords[3], double *weights, vtkGenericCell *&cell, vtkDoubleArray *cellVectors) |
void | ShowCacheResults () |
bool | IsStatic (int datasetIndex) |
void | AdvanceOneTimeStep () |
virtual int | FunctionValues (double *x, double *u) |
int | FunctionValuesAtT (int T, double *x, double *u) |
void | SelectVectors (const char *fieldName) |
bool | GetCachedCellIds (vtkIdType id[2], int ds[2]) |
void | SetCachedCellIds (vtkIdType id[2], int ds[2]) |
int | TestPoint (double *x) |
int | QuickTestPoint (double *x) |
virtual double * | GetLastGoodVelocity () |
virtual void | GetLastGoodVelocity (double &, double &, double &) |
virtual void | GetLastGoodVelocity (double[3]) |
virtual double | GetCurrentWeight () |
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vtkFunctionSet * | NewInstance () const |
virtual int | GetNumberOfFunctions () |
virtual int | GetNumberOfIndependentVariables () |
Static Public Member Functions | |
static int | IsTypeOf (const char *type) |
static vtkTemporalInterpolatedVelocityField * | SafeDownCast (vtkObjectBase *o) |
static vtkTemporalInterpolatedVelocityField * | New () |
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static int | IsTypeOf (const char *type) |
static vtkFunctionSet * | SafeDownCast (vtkObjectBase *o) |
Protected Member Functions | |
virtual vtkObjectBase * | NewInstanceInternal () const |
vtkTemporalInterpolatedVelocityField () | |
~vtkTemporalInterpolatedVelocityField () | |
int | FunctionValues (vtkDataSet *ds, double *x, double *f) |
virtual void | SetVectorsSelection (const char *v) |
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vtkFunctionSet () | |
~vtkFunctionSet () | |
Protected Attributes | |
double | vals1 [3] |
double | vals2 [3] |
double | times [2] |
double | LastGoodVelocity [3] |
double | CurrentWeight |
double | OneMinusWeight |
double | ScaleCoeff |
vtkSmartPointer < vtkCachingInterpolatedVelocityField > | ivf [2] |
std::vector< bool > | StaticDataSets |
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int | NumFuncs |
int | NumIndepVars |
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.
Definition at line 68 of file vtkTemporalInterpolatedVelocityField.h.
Definition at line 71 of file vtkTemporalInterpolatedVelocityField.h.
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Reimplemented from vtkFunctionSet.
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Reimplemented from vtkFunctionSet.
vtkTemporalInterpolatedVelocityField* vtkTemporalInterpolatedVelocityField::NewInstance | ( | ) | const |
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Reimplemented from vtkFunctionSet.
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Construct a vtkTemporalInterpolatedVelocityField with no initial data set. Caching is on. LastCellId is set to -1.
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Evaluate the velocity field, f, at (x, y, z, t). For now, t is ignored.
Implements vtkFunctionSet.
int vtkTemporalInterpolatedVelocityField::FunctionValuesAtT | ( | int | T, |
double * | x, | ||
double * | u | ||
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Evaluate the velocity field, f, at (x, y, z, t). For now, t is ignored.
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If you want to work with an arbitrary vector array, then set its name here. By default this is NULL and the filter will use the active vector array.
Definition at line 89 of file vtkTemporalInterpolatedVelocityField.h.
void vtkTemporalInterpolatedVelocityField::SetDataSetAtTime | ( | int | I, |
int | N, | ||
double | T, | ||
vtkDataSet * | dataset, | ||
bool | staticdataset | ||
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In order to use this class, two sets of data must be supplied, corresponding to times T1 and T2. Data is added via this function.
bool vtkTemporalInterpolatedVelocityField::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.
void vtkTemporalInterpolatedVelocityField::SetCachedCellIds | ( | 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.
void vtkTemporalInterpolatedVelocityField::ClearCache | ( | ) |
Set the last cell id to -1 so that the next search does not start from the previous cell
int vtkTemporalInterpolatedVelocityField::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.
int vtkTemporalInterpolatedVelocityField::QuickTestPoint | ( | 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.
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If an interpolation was successful, we can retrieve the last computed value from here. Initial value is (0.0,0.0,0.0)
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If an interpolation was successful, we can retrieve the last computed value from here. Initial value is (0.0,0.0,0.0)
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If an interpolation was successful, we can retrieve the last computed value from here. Initial value is (0.0,0.0,0.0)
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Get the most recent weight between 0->1 from T1->T2. Initial value is 0.
bool vtkTemporalInterpolatedVelocityField::InterpolatePoint | ( | vtkPointData * | outPD1, |
vtkPointData * | outPD2, | ||
vtkIdType | outIndex | ||
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bool vtkTemporalInterpolatedVelocityField::InterpolatePoint | ( | int | T, |
vtkPointData * | outPD1, | ||
vtkIdType | outIndex | ||
) |
bool vtkTemporalInterpolatedVelocityField::GetVorticityData | ( | int | T, |
double | pcoords[3], | ||
double * | weights, | ||
vtkGenericCell *& | cell, | ||
vtkDoubleArray * | cellVectors | ||
) |
void vtkTemporalInterpolatedVelocityField::ShowCacheResults | ( | ) |
bool vtkTemporalInterpolatedVelocityField::IsStatic | ( | int | datasetIndex | ) |
void vtkTemporalInterpolatedVelocityField::AdvanceOneTimeStep | ( | ) |
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Definition at line 149 of file vtkTemporalInterpolatedVelocityField.h.
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Definition at line 150 of file vtkTemporalInterpolatedVelocityField.h.
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Definition at line 151 of file vtkTemporalInterpolatedVelocityField.h.
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Definition at line 152 of file vtkTemporalInterpolatedVelocityField.h.
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Definition at line 156 of file vtkTemporalInterpolatedVelocityField.h.
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Definition at line 158 of file vtkTemporalInterpolatedVelocityField.h.
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Definition at line 160 of file vtkTemporalInterpolatedVelocityField.h.
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Definition at line 162 of file vtkTemporalInterpolatedVelocityField.h.
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Definition at line 164 of file vtkTemporalInterpolatedVelocityField.h.