This is a special 19-point stencil that supports optimal fifth-order WENO upwinding, second-order central differencing, Laplacian, and zero-crossing test. More...

#include <Stencils.h>

Inheritance diagram for openvdb::OPENVDB_VERSION_NAME::math::WenoStencil< GridT, IsSafe >:

Public Types
typedef GridT	GridType

typedef GridT::TreeType	TreeType

typedef GridType::ValueType	ValueType

Public Types inherited from openvdb::OPENVDB_VERSION_NAME::math::BaseStencil< WenoStencil< GridT, IsSafe >, GridT, IsSafe >
typedef GridT	GridType

typedef GridT::TreeType	TreeType

typedef GridT::ValueType	ValueType

typedef tree::ValueAccessor < const TreeType, IsSafe >	AccessorType

typedef std::vector< ValueType >	BufferType

Public Member Functions
	WenoStencil (const GridType &grid)

	WenoStencil (const GridType &grid, Real dx)

ValueType	normSqGrad (const ValueType &isoValue=zeroVal< ValueType >()) const
	Return the norm-square of the WENO upwind gradient (computed via WENO upwinding and Godunov's scheme) at the previously buffered location. More...

math::Vec3< ValueType >	gradient (const math::Vec3< ValueType > &V) const

math::Vec3< ValueType >	gradient () const

ValueType	laplacian () const

bool	zeroCrossing () const

Public Member Functions inherited from openvdb::OPENVDB_VERSION_NAME::math::BaseStencil< WenoStencil< GridT, IsSafe >, GridT, IsSafe >
void	moveTo (const Coord &ijk)
	Initialize the stencil buffer with the values of voxel (i, j, k) and its neighbors. More...

void	moveTo (const Coord &ijk, const ValueType &centerValue)
	Initialize the stencil buffer with the values of voxel (i, j, k) and its neighbors. The method also takes a value of the center element of the stencil, assuming it is already known. More...

void	moveTo (const IterType &iter)
	Initialize the stencil buffer with the values of voxel (x, y, z) and its neighbors. More...

void	moveTo (const Vec3< RealType > &xyz)
	Initialize the stencil buffer with the values of voxel (x, y, z) and its neighbors. More...

const ValueType &	getValue (unsigned int pos=0) const
	Return the value from the stencil buffer with linear offset pos. More...

const ValueType &	getValue () const
	Return the value at the specified location relative to the center of the stencil. More...

void	setValue (const ValueType &value)
	Set the value at the specified location relative to the center of the stencil. More...

int	size ()
	Return the size of the stencil buffer. More...

ValueType	median () const
	Return the median value of the current stencil. More...

ValueType	mean () const
	Return the mean value of the current stencil. More...

ValueType	min () const
	Return the smallest value in the stencil buffer. More...

ValueType	max () const
	Return the largest value in the stencil buffer. More...

const Coord &	getCenterCoord () const
	Return the coordinates of the center point of the stencil. More...

const ValueType &	getCenterValue () const
	Return the value at the center of the stencil. More...

bool	intersects (const ValueType &isoValue=zeroVal< ValueType >()) const
	Return true if the center of the stencil intersects the iso-contour specified by the isoValue. More...

std::bitset< 6 >	intersectionMask (const ValueType &isoValue=zeroVal< ValueType >()) const
	Return true a bit-mask where the 6 bits indicates if the center of the stencil intersects the iso-contour specified by the isoValue. More...

const GridType &	grid () const
	Return a const reference to the grid from which this stencil was constructed. More...

const AccessorType &	accessor () const
	Return a const reference to the ValueAccessor associated with this Stencil. More...

Static Public Attributes
static const int	SIZE = 19

Friends
template<typename , typename , bool >
class	BaseStencil

Additional Inherited Members
Protected Member Functions inherited from openvdb::OPENVDB_VERSION_NAME::math::BaseStencil< WenoStencil< GridT, IsSafe >, GridT, IsSafe >
	BaseStencil (const GridType &grid, int size)

Protected Attributes inherited from openvdb::OPENVDB_VERSION_NAME::math::BaseStencil< WenoStencil< GridT, IsSafe >, GridT, IsSafe >
const GridType *	mGrid

AccessorType	mAcc

BufferType	mValues

Coord	mCenter

Detailed Description

template<typename GridT, bool IsSafe = true>
class openvdb::OPENVDB_VERSION_NAME::math::WenoStencil< GridT, IsSafe >

This is a special 19-point stencil that supports optimal fifth-order WENO upwinding, second-order central differencing, Laplacian, and zero-crossing test.

Note: For optimal random access performance this class includes its own grid accessor.

Definition at line 1365 of file Stencils.h.