PointPartitioner< PointIndexType, BucketLog2Dim > Class Template Reference

#include <openvdb/tools/PointPartitioner.h>

Classes
class	IndexIterator

Public Types
enum	{ LOG2DIM = BucketLog2Dim }
using	Ptr = SharedPtr< PointPartitioner >
using	ConstPtr = SharedPtr< const PointPartitioner >
using	IndexType = PointIndexType
using	VoxelOffsetType = typename std::conditional<(bits< 16), int16_t, typename std::conditional<(bits< 32), int32_t, int64_t >::type >::type
using	VoxelOffsetArray = std::unique_ptr< VoxelOffsetType[]>

Public Member Functions
	PointPartitioner ()
template<typename PointArray >
void	construct (const PointArray &points, const math::Transform &xform, bool voxelOrder=false, bool recordVoxelOffsets=false, bool cellCenteredTransform=true)
	Partitions point indices into BucketLog2Dim aligned buckets. More...
size_t	size () const
	Returns the number of buckets. More...
bool	empty () const
	true if the container size is 0, false otherwise. More...
void	clear ()
	Removes all data and frees up memory. More...
void	swap (PointPartitioner &)
	Exchanges the content of the container by another. More...
IndexIterator	indices (size_t n) const
	Returns the point indices for bucket n. More...
CoordBBox	getBBox (size_t n) const
	Returns the coordinate-aligned bounding box for bucket n. More...
const Coord &	origin (size_t n) const
	Returns the origin coordinate for bucket n. More...
const VoxelOffsetArray &	voxelOffsets () const
	Returns a list of LeafNode voxel offsets for the points. More...
bool	usingCellCenteredTransform () const
	Returns true if this point partitioning was constructed using a cell-centered transform. More...

Static Public Member Functions
template<typename PointArray >
static Ptr	create (const PointArray &points, const math::Transform &xform, bool voxelOrder=false, bool recordVoxelOffsets=false, bool cellCenteredTransform=true)
	Partitions point indices into BucketLog2Dim aligned buckets. More...

Static Public Attributes
static constexpr Index	bits = 1 + (3 * BucketLog2Dim)

Member Typedef Documentation

using ConstPtr = SharedPtr<const PointPartitioner>

using IndexType = PointIndexType

using Ptr = SharedPtr<PointPartitioner>

using VoxelOffsetArray = std::unique_ptr<VoxelOffsetType[]>

using VoxelOffsetType = typename std::conditional<(bits < 16), int16_t, typename std::conditional<(bits < 32), int32_t, int64_t>::type>::type

Member Enumeration Documentation

anonymous enum

Enumerator
LOG2DIM

Constructor & Destructor Documentation

PointPartitioner ( )

inline

Member Function Documentation

void clear ( )

inline

Removes all data and frees up memory.

void construct ( const PointArray &  points, const math::Transform &  xform, bool  voxelOrder = false, bool  recordVoxelOffsets = false, bool  cellCenteredTransform = true  )

inline

Partitions point indices into BucketLog2Dim aligned buckets.

Parameters

points	list of world space points.
xform	world to index space transform.
voxelOrder	sort point indices by local voxel offsets.
recordVoxelOffsets	construct local voxel offsets
cellCenteredTransform	toggle the cell-centered interpretation that imagines world space as divided into discrete cells (e.g., cubes) centered on the image of the index-space lattice points.

PointPartitioner< PointIndexType, BucketLog2Dim >::Ptr create ( const PointArray &  points, const math::Transform &  xform, bool  voxelOrder = false, bool  recordVoxelOffsets = false, bool  cellCenteredTransform = true  )

inlinestatic

Partitions point indices into BucketLog2Dim aligned buckets.

Parameters

points	list of world space points.
xform	world to index space transform.
voxelOrder	sort point indices by local voxel offsets.
recordVoxelOffsets	construct local voxel offsets
cellCenteredTransform	toggle the cell-centered interpretation that imagines world space as divided into discrete cells (e.g., cubes) centered on the image of the index-space lattice points.

bool empty ( ) const

inline

true if the container size is 0, false otherwise.

CoordBBox getBBox ( size_t  n ) const

inline

Returns the coordinate-aligned bounding box for bucket n.

PointPartitioner< PointIndexType, BucketLog2Dim >::IndexIterator indices ( size_t  n ) const

inline

Returns the point indices for bucket n.

const Coord& origin ( size_t  n ) const

inline

Returns the origin coordinate for bucket n.

size_t size ( ) const

inline

Returns the number of buckets.

void swap ( PointPartitioner< PointIndexType, BucketLog2Dim > &  rhs )

inline

Exchanges the content of the container by another.

bool usingCellCenteredTransform ( ) const

inline

Returns true if this point partitioning was constructed using a cell-centered transform.

Note

Cell-centered interpretation is the default behavior.

const VoxelOffsetArray& voxelOffsets ( ) const

inline

Returns a list of LeafNode voxel offsets for the points.

Note

The list is optionally constructed.

Member Data Documentation

constexpr Index bits = 1 + (3 * BucketLog2Dim)

static