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TriquadraticSampler< TreeOrAccT > Class Template Reference

Tri-quadratic sampler, i.e. second order, interpolator. More...

`#include <nanovdb/util/SampleFromVoxels.h>`

Inheritance diagram for TriquadraticSampler< TreeOrAccT >:

## Public Types

using | ValueT = typename TreeOrAccT::ValueType
using | CoordT = typename TreeOrAccT::CoordType

## Public Member Functions

| TriquadraticSampler (const TreeOrAccT &acc)
| Protected constructor from a Tree or ReadAccessor.
const TreeOrAccT & | accessor () const
void | stencil (const CoordT &ijk, ValueT(&v)[3][3][3]) const
| Extract the stencil of 27 values.
template<typename RealT, template< typename... > class Vec3T>
TreeOrAccT::ValueType | sample (const Vec3T< RealT > &uvw, const ValueT(&v)[3][3][3])

## Static Public Member Functions

template<typename RealT, template< typename... > class Vec3T>
static ValueT | sample (const Vec3T< RealT > &uvw, const ValueT(&v)[3][3][3])
static bool | zeroCrossing (const ValueT(&v)[3][3][3])

## Static Public Attributes

static const int | ORDER = 1

## Protected Attributes

const TreeOrAccT & | mAcc

## Detailed Description

template<typename TreeOrAccT>
class nanovdb::TriquadraticSampler< TreeOrAccT >

Tri-quadratic sampler, i.e. second order, interpolator.

## Member Typedef Documentation

## CoordT

template<typename TreeOrAccT>

using CoordT = typename TreeOrAccT::CoordType

## ValueT

template<typename TreeOrAccT>

using ValueT = typename TreeOrAccT::ValueType

## Constructor & Destructor Documentation

## TriquadraticSampler()

template<typename TreeOrAccT>

TriquadraticSampler | ( | const TreeOrAccT & | acc | ) |

inline

Protected constructor from a Tree or ReadAccessor.

## Member Function Documentation

## accessor()

template<typename TreeOrAccT>

const TreeOrAccT & accessor | ( |  | ) | const

inline

## sample() [1/2]

template<typename TreeOrAccT>
template<typename RealT, template< typename... > class Vec3T>

ValueT sample | ( | const Vec3T< RealT > & | uvw,
|  | const ValueT(&) | v[3][3][3] )

inlinestatic

## sample() [2/2]

template<typename TreeOrAccT>
template<typename RealT, template< typename... > class Vec3T>

TreeOrAccT::ValueType sample | ( | const Vec3T< RealT > & | uvw,
|  | const ValueT(&) | v[3][3][3] )

## stencil()

template<typename TreeOrAccT>

void stencil | ( | const CoordT & | ijk,
|  | ValueT(&) | v[3][3][3] ) const

inline

Extract the stencil of 27 values.

## zeroCrossing()

template<typename TreeOrAccT>

bool zeroCrossing | ( | const ValueT(&) | v[3][3][3] | ) |

inlinestatic

## Member Data Documentation

## mAcc

template<typename TreeOrAccT>

const TreeOrAccT& mAcc

protected

## ORDER

template<typename TreeOrAccT>

const int ORDER = 1

static