OpenVDB: Tree< RootT > Class Template Reference

OpenVDB 10.0.1

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Public Types | Public Member Functions | Static Public Member Functions | List of all members
Tree< RootT > Class Template Reference

VDB Tree, which is a thin wrapper around a RootNode. More...

`#include <nanovdb/NanoVDB.h>`

Inheritance diagram for Tree< RootT >:

## Public Types
using | DataType = TreeData< RootT::LEVEL >
using | RootType = RootT
using | LeafNodeType = typename RootT::LeafNodeType
using | ValueType = typename RootT::ValueType
using | BuildType = typename RootT::BuildType
using | CoordType = typename RootT::CoordType
using | AccessorType = DefaultReadAccessor< BuildType >
using | Node3 = RootT
using | Node2 = typename RootT::ChildNodeType
using | Node1 = typename Node2::ChildNodeType
using | Node0 = LeafNodeType

## Public Member Functions
| Tree ()=delete
| This class cannot be constructed or deleted.
| Tree (const Tree &)=delete
Tree & | operator= (const Tree &)=delete
| ~Tree ()=delete
DataType * | data ()
const DataType * | data () const
RootT & | root ()
const RootT & | root () const
AccessorType | getAccessor () const
ValueType | getValue (const CoordType &ijk) const
| Return the value of the given voxel (regardless of state or location in the tree.)
bool | isActive (const CoordType &ijk) const
| Return the active state of the given voxel (regardless of state or location in the tree.)
bool | isEmpty () const
| Return true if this tree is empty, i.e. contains no values or nodes.
bool | probeValue (const CoordType &ijk, ValueType &v) const
| Combines the previous two methods in a single call.
const ValueType & | background () const
| Return a const reference to the background value.
void | extrema (ValueType &min, ValueType &max) const
| Sets the extrema values of all the active values in this tree, i.e. in all nodes of the tree.
const BBox< CoordType > & | bbox () const
| Return a const reference to the index bounding box of all the active values in this tree, i.e. in all nodes of the tree.
uint64_t | activeVoxelCount () const
| Return the total number of active voxels in this tree.
const uint32_t & | activeTileCount (uint32_t level) const
| Return the total number of active tiles at the specified level of the tree.
template<typename NodeT >
uint32_t | nodeCount () const
uint32_t | nodeCount (int level) const
template<typename NodeT >
NodeT * | getFirstNode ()
| return a pointer to the first node of the specified type
template<typename NodeT >
const NodeT * | getFirstNode () const
| return a const pointer to the first node of the specified type
template<int LEVEL>
NodeTrait< RootT, LEVEL >::type * | getFirstNode ()
| return a pointer to the first node at the specified level
template<int LEVEL>
const NodeTrait< RootT, LEVEL >::type * | getFirstNode () const
| return a const pointer to the first node of the specified level
LeafNodeType * | getFirstLeaf ()
| Template specializations of getFirstNode.
const LeafNodeType * | getFirstLeaf () const
NodeTrait< RootT, 1 >::type * | getFirstLower ()
const NodeTrait< RootT, 1 >::type * | getFirstLower () const
NodeTrait< RootT, 2 >::type * | getFirstUpper ()
const NodeTrait< RootT, 2 >::type * | getFirstUpper () const

## Static Public Member Functions
static uint64_t | memUsage ()
| return memory usage in bytes for the class

## Detailed Description

template<typename RootT>
class nanovdb::Tree< RootT >

VDB Tree, which is a thin wrapper around a RootNode.

## Member Typedef Documentation

## ◆ AccessorType

using AccessorType = DefaultReadAccessor<BuildType>

## ◆ BuildType

using BuildType = typename RootT::BuildType

## ◆ CoordType

using CoordType = typename RootT::CoordType

## ◆ DataType

using DataType = TreeData<RootT::LEVEL>

## ◆ LeafNodeType

using LeafNodeType = typename RootT::LeafNodeType

## ◆ Node0

using Node0 = LeafNodeType

## ◆ Node1

using Node1 = typename Node2::ChildNodeType

## ◆ Node2

using Node2 = typename RootT::ChildNodeType

## ◆ Node3

using Node3 = RootT

## ◆ RootType

using RootType = RootT

## ◆ ValueType

using ValueType = typename RootT::ValueType

## Constructor & Destructor Documentation

## ◆ Tree() [1/2]

Tree | ( |  | ) |
| delete

This class cannot be constructed or deleted.

## ◆ Tree() [2/2]

Tree | ( | const Tree< RootT > & |  | ) |
| delete

## ◆ ~Tree()

~Tree | ( |  | ) |
| delete

## Member Function Documentation

## ◆ activeTileCount()

const uint32_t & activeTileCount | ( | uint32_t | level | ) | const
| inline

Return the total number of active tiles at the specified level of the tree.

level = 1,2,3 corresponds to active tile count in lower internal nodes, upper internal nodes, and the root level. Note active values at the leaf level are referred to as active voxels (see activeVoxelCount defined above).

## ◆ activeVoxelCount()

uint64_t activeVoxelCount | ( |  | ) | const
| inline

Return the total number of active voxels in this tree.

## ◆ background()

const ValueType & background | ( |  | ) | const
| inline

Return a const reference to the background value.

## ◆ bbox()

const BBox< CoordType > & bbox | ( |  | ) | const
| inline

Return a const reference to the index bounding box of all the active values in this tree, i.e. in all nodes of the tree.

## ◆ data() [1/2]

DataType * data | ( |  | ) |
| inline

## ◆ data() [2/2]

const DataType * data | ( |  | ) | const
| inline

## ◆ extrema()

void extrema | ( | ValueType & | min,
|  | ValueType & | max
| ) |  | const

Sets the extrema values of all the active values in this tree, i.e. in all nodes of the tree.

## ◆ getAccessor()

AccessorType getAccessor | ( |  | ) | const
| inline

## ◆ getFirstLeaf() [1/2]

LeafNodeType * getFirstLeaf | ( |  | ) |
| inline

Template specializations of getFirstNode.

## ◆ getFirstLeaf() [2/2]

const LeafNodeType * getFirstLeaf | ( |  | ) | const
| inline

## ◆ getFirstLower() [1/2]

NodeTrait< RootT, 1 >::type * getFirstLower | ( |  | ) |
| inline

## ◆ getFirstLower() [2/2]

const NodeTrait< RootT, 1 >::type * getFirstLower | ( |  | ) | const
| inline

## ◆ getFirstNode() [1/4]

NodeT * getFirstNode | ( |  | ) |
| inline

return a pointer to the first node of the specified type

Warning
  Note it may return NULL if no nodes exist

## ◆ getFirstNode() [2/4]

NodeTrait< RootT, LEVEL >::type * getFirstNode | ( |  | ) |
| inline

return a pointer to the first node at the specified level

Warning
  Note it may return NULL if no nodes exist

## ◆ getFirstNode() [3/4]

const NodeT * getFirstNode | ( |  | ) | const
| inline

return a const pointer to the first node of the specified type

Warning
  Note it may return NULL if no nodes exist

## ◆ getFirstNode() [4/4]

const NodeTrait< RootT, LEVEL >::type * getFirstNode | ( |  | ) | const
| inline

return a const pointer to the first node of the specified level

Warning
  Note it may return NULL if no nodes exist

## ◆ getFirstUpper() [1/2]

NodeTrait< RootT, 2 >::type * getFirstUpper | ( |  | ) |
| inline

## ◆ getFirstUpper() [2/2]

const NodeTrait< RootT, 2 >::type * getFirstUpper | ( |  | ) | const
| inline

## ◆ getValue()

ValueType getValue | ( | const CoordType & | ijk | ) | const
| inline

Return the value of the given voxel (regardless of state or location in the tree.)

## ◆ isActive()

bool isActive | ( | const CoordType & | ijk | ) | const
| inline

Return the active state of the given voxel (regardless of state or location in the tree.)

## ◆ isEmpty()

bool isEmpty | ( |  | ) | const
| inline

Return true if this tree is empty, i.e. contains no values or nodes.

## ◆ memUsage()

static uint64_t memUsage | ( |  | ) |
| inlinestatic

return memory usage in bytes for the class

## ◆ nodeCount() [1/2]

uint32_t nodeCount | ( |  | ) | const
| inline

## ◆ nodeCount() [2/2]

uint32_t nodeCount | ( | int | level | ) | const
| inline

## ◆ operator=()

Tree & operator= | ( | const Tree< RootT > & |  | ) |
| delete

## ◆ probeValue()

bool probeValue | ( | const CoordType & | ijk,
|  | ValueType & | v
| ) |  | const
| inline

Combines the previous two methods in a single call.

## ◆ root() [1/2]

RootT & root | ( |  | ) |
| inline

## ◆ root() [2/2]

const RootT & root | ( |  | ) | const
| inline