PointPartitioner.h File Reference

Spatially partitions points using a parallel radix-based sorting algorithm. More...

#include <openvdb/Types.h>
#include <openvdb/math/Transform.h>
#include <tbb/blocked_range.h>
#include <tbb/parallel_for.h>
#include <tbb/task_scheduler_init.h>
#include <algorithm>
#include <cmath>
#include <deque>
#include <map>
#include <set>
#include <utility>
#include <vector>

Include dependency graph for PointPartitioner.h:

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Classes
class	openvdb::OPENVDB_VERSION_NAME::tools::PointPartitioner< PointIndexType, BucketLog2Dim >
class	openvdb::OPENVDB_VERSION_NAME::tools::PointPartitioner< PointIndexType, BucketLog2Dim >::IndexIterator
struct	openvdb::OPENVDB_VERSION_NAME::tools::point_partitioner_internal::ComputePointOrderOp< PointIndexType >
struct	openvdb::OPENVDB_VERSION_NAME::tools::point_partitioner_internal::CreateOrderedPointIndexArrayOp< PointIndexType >
struct	openvdb::OPENVDB_VERSION_NAME::tools::point_partitioner_internal::VoxelOrderOp< PointIndexType, BucketLog2Dim >
struct	openvdb::OPENVDB_VERSION_NAME::tools::point_partitioner_internal::Array< T >
struct	openvdb::OPENVDB_VERSION_NAME::tools::point_partitioner_internal::MoveSegmentDataOp< PointIndexType >
struct	openvdb::OPENVDB_VERSION_NAME::tools::point_partitioner_internal::MergeBinsOp< PointIndexType >
struct	openvdb::OPENVDB_VERSION_NAME::tools::point_partitioner_internal::BinPointIndicesOp< PointArray, PointIndexType, VoxelOffsetType >
struct	openvdb::OPENVDB_VERSION_NAME::tools::point_partitioner_internal::OrderSegmentsOp< PointIndexType >

Namespaces
	openvdb
	openvdb::OPENVDB_VERSION_NAME
	openvdb::OPENVDB_VERSION_NAME::tools
	openvdb::OPENVDB_VERSION_NAME::tools::point_partitioner_internal

Typedefs
using	openvdb::OPENVDB_VERSION_NAME::tools::UInt32PointPartitioner = PointPartitioner< uint32_t, 3 >

Functions
template<typename PointIndexType , typename VoxelOffsetType , typename PointArray >
void	openvdb::OPENVDB_VERSION_NAME::tools::point_partitioner_internal::binAndSegment (const PointArray &points, const math::Transform &xform, std::unique_ptr< typename Array< PointIndexType >::Ptr[]> &indexSegments, std::unique_ptr< typename Array< PointIndexType >::Ptr[]> &offsetSegments, std::vector< Coord > &coords, const Index binLog2Dim, const Index bucketLog2Dim, VoxelOffsetType *voxelOffsets=nullptr, bool cellCenteredTransform=true)
	Segment points using one level of least significant digit radix bins. More...
template<typename PointIndexType , typename VoxelOffsetType , typename PointArray >
void	openvdb::OPENVDB_VERSION_NAME::tools::point_partitioner_internal::partition (const PointArray &points, const math::Transform &xform, const Index bucketLog2Dim, std::unique_ptr< PointIndexType[]> &pointIndices, std::unique_ptr< PointIndexType[]> &pageOffsets, std::unique_ptr< Coord[]> &pageCoordinates, PointIndexType &pageCount, std::unique_ptr< VoxelOffsetType[]> &voxelOffsets, bool recordVoxelOffsets, bool cellCenteredTransform)

Detailed Description

Spatially partitions points using a parallel radix-based sorting algorithm.

Performs a stable deterministic sort; partitioning the same point sequence will produce the same result each time.

The algorithm is unbounded meaning that points may be distributed anywhere in index space.

The actual points are never stored in the tool, only offsets into an external array.

Author

Mihai Alden

Definition in file PointPartitioner.h.