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37 #ifndef vtkSPHQuarticKernel_h
38 #define vtkSPHQuarticKernel_h
40 #include "vtkFiltersPointsModule.h"
73 double tmp1 = 2.5 - std::min(d,2.5);
74 double tmp2 = 1.5 - std::min(d,1.5);
75 double tmp3 = 0.5 - std::min(d,0.5);
76 return (tmp1*tmp1*tmp1*tmp1 - 5.0*tmp2*tmp2*tmp2*tmp2 +
77 10.0*tmp3*tmp3*tmp3*tmp3);
88 double tmp1 = 2.5 - std::min(d,2.5);
89 double tmp2 = 1.5 - std::min(d,1.5);
90 double tmp3 = 0.5 - std::min(d,0.5);
91 return (-4.0*tmp1*tmp1*tmp1 + 20.0*tmp2*tmp2*tmp2 - 40.0*tmp3*tmp3*tmp3);
double ComputeFunctionWeight(const double d) override
Compute weighting factor given a normalized distance from a sample point.
represent and manipulate point attribute data
a quartic SPH interpolation kernel
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
void Initialize(vtkAbstractPointLocator *loc, vtkDataSet *ds, vtkPointData *pd) override
Produce the computational parameters for the kernel.
double ComputeDerivWeight(const double d) override
Compute weighting factor for derivative quantities given a normalized distance from a sample point.
a simple class to control print indentation
list of point or cell ids
a family of SPH interpolation kernels
abstract class to specify dataset behavior
abstract class to quickly locate points in 3-space
dynamic, self-adjusting array of double
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.