OpenVDB 11.0.0
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DenseStencil< GridT, IsSafe > Class Template Reference

Dense stencil of a given width. More...

#include <openvdb/math/Stencils.h>

Inheritance diagram for DenseStencil< GridT, IsSafe >:
BaseStencil< DenseStencil< GridT, true >, GridT, true >

Public Types

typedef GridT GridType
 
typedef GridT::TreeType TreeType
 
typedef GridType::ValueType ValueType
 
typedef tree::ValueAccessor< const TreeType, IsSafe > AccessorType
 
typedef std::vector< ValueTypeBufferType
 

Public Member Functions

 DenseStencil (const GridType &grid, int halfWidth)
 
const ValueTypegetCenterValue () const
 
void moveTo (const Coord &ijk)
 Initialize the stencil buffer with the values of voxel (x, y, z) and its neighbors.
 
template<typename IterType >
void moveTo (const IterType &iter)
 Initialize the stencil buffer with the values of voxel (x, y, z) and its neighbors.
 
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.
 
void moveTo (const Vec3< RealType > &xyz)
 Initialize the stencil buffer with the values of voxel (x, y, z) and its neighbors.
 
const ValueTypegetValue (unsigned int pos=0) const
 Return the value from the stencil buffer with linear offset pos.
 
const ValueTypegetValue () const
 Return the value at the specified location relative to the center of the stencil.
 
void setValue (const ValueType &value)
 Set the value at the specified location relative to the center of the stencil.
 
int size ()
 Return the size of the stencil buffer.
 
ValueType median () const
 Return the median value of the current stencil.
 
ValueType mean () const
 Return the mean value of the current stencil.
 
ValueType min () const
 Return the smallest value in the stencil buffer.
 
ValueType max () const
 Return the largest value in the stencil buffer.
 
const CoordgetCenterCoord () const
 Return the coordinates of the center point of the stencil.
 
bool intersects (const ValueType &isoValue=zeroVal< ValueType >()) const
 Return true if the center of the stencil intersects the iso-contour specified by the isoValue.
 
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.
 
const GridTypegrid () const
 Return a const reference to the grid from which this stencil was constructed.
 
const AccessorTypeaccessor () const
 Return a const reference to the ValueAccessor associated with this Stencil.
 

Protected Attributes

const GridTypemGrid
 
Coord mCenter
 

Friends

template<typename , typename , bool >
class BaseStencil
 

Detailed Description

template<typename GridT, bool IsSafe = true>
class openvdb::v11_0::math::DenseStencil< GridT, IsSafe >

Dense stencil of a given width.

Member Typedef Documentation

◆ AccessorType

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

◆ BufferType

std::vector<ValueType> BufferType
inherited

◆ GridType

template<typename GridT , bool IsSafe = true>
GridT GridType

◆ TreeType

template<typename GridT , bool IsSafe = true>
GridT::TreeType TreeType

◆ ValueType

template<typename GridT , bool IsSafe = true>
GridType::ValueType ValueType

Constructor & Destructor Documentation

◆ DenseStencil()

template<typename GridT , bool IsSafe = true>
DenseStencil ( const GridType & grid,
int halfWidth )
inline

Member Function Documentation

◆ accessor()

const AccessorType & accessor ( ) const
inlineinherited

Return a const reference to the ValueAccessor associated with this Stencil.

◆ getCenterCoord()

const Coord & getCenterCoord ( ) const
inlineinherited

Return the coordinates of the center point of the stencil.

◆ getCenterValue()

template<typename GridT , bool IsSafe = true>
const ValueType & getCenterValue ( ) const
inline

◆ getValue() [1/2]

const ValueType & getValue ( ) const
inlineinherited

Return the value at the specified location relative to the center of the stencil.

◆ getValue() [2/2]

const ValueType & getValue ( unsigned int pos = 0) const
inlineinherited

Return the value from the stencil buffer with linear offset pos.

Note
The default (pos = 0) corresponds to the first element which is typically the center point of the stencil.

◆ grid()

const GridType & grid ( ) const
inlineinherited

Return a const reference to the grid from which this stencil was constructed.

◆ intersectionMask()

std::bitset< 6 > intersectionMask ( const ValueType & isoValue = zeroVal<ValueType>()) const
inlineinherited

Return true a bit-mask where the 6 bits indicates if the center of the stencil intersects the iso-contour specified by the isoValue.

Note
There are 2^6 = 64 different possible cases, including no intersections!

The ordering of bit mask is ( -x, +x, -y, +y, -z, +z ), so to check if there is an intersection in -y use mask.test(2) where mask is ther return value from this function. To check if there are any intersections use mask.any(), and for no intersections use mask.none(). To count the number of intersections use mask.count().

◆ intersects()

bool intersects ( const ValueType & isoValue = zeroVal<ValueType>()) const
inlineinherited

Return true if the center of the stencil intersects the iso-contour specified by the isoValue.

◆ max()

ValueType max ( ) const
inlineinherited

Return the largest value in the stencil buffer.

◆ mean()

ValueType mean ( ) const
inlineinherited

Return the mean value of the current stencil.

◆ median()

ValueType median ( ) const
inlineinherited

Return the median value of the current stencil.

◆ min()

ValueType min ( ) const
inlineinherited

Return the smallest value in the stencil buffer.

◆ moveTo() [1/4]

void moveTo ( const Coord & ijk,
const ValueType & centerValue )
inlineinherited

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.

Parameters
ijkIndex coordinates of stnecil center
centerValueValue of the center element of the stencil

◆ moveTo() [2/4]

void moveTo ( const Vec3< RealType > & xyz)
inlineinherited

Initialize the stencil buffer with the values of voxel (x, y, z) and its neighbors.

Parameters
xyzFloating point voxel coordinates of stencil center

This method will check to see if it is necessary to update the stencil based on the cached index coordinates of the center point.

◆ moveTo() [3/4]

template<typename GridT , bool IsSafe = true>
void moveTo ( const Coord & ijk)
inline

Initialize the stencil buffer with the values of voxel (x, y, z) and its neighbors.

◆ moveTo() [4/4]

template<typename GridT , bool IsSafe = true>
template<typename IterType >
void moveTo ( const IterType & iter)
inline

Initialize the stencil buffer with the values of voxel (x, y, z) and its neighbors.

◆ setValue()

void setValue ( const ValueType & value)
inlineinherited

Set the value at the specified location relative to the center of the stencil.

◆ size()

int size ( )
inlineinherited

Return the size of the stencil buffer.

Friends And Related Symbol Documentation

◆ BaseStencil

template<typename GridT , bool IsSafe = true>
template<typename , typename , bool >
friend class BaseStencil
friend

Member Data Documentation

◆ mCenter

Coord mCenter
protectedinherited

◆ mGrid

const GridType* mGrid
protectedinherited