Value accessor with two levels of node caching. More...

#include <openvdb/tree/ValueAccessor.h>

Inherits ValueAccessorBase< _TreeType, IsSafe >.

Public Types
using	TreeType = _TreeType

using	ValueType = typename TreeType::ValueType

using	RootNodeT = typename TreeType::RootNodeType

using	LeafNodeT = typename TreeType::LeafNodeType

using	BaseT = ValueAccessorBase< TreeType, IsSafe >

using	InvTreeT = typename RootNodeT::NodeChainType

using	NodeT0 = typename InvTreeT::template Get< L0 >

using	NodeT1 = typename InvTreeT::template Get< L1 >

Public Member Functions
	ValueAccessor2 (TreeType &tree)
	Constructor from a tree. More...

	ValueAccessor2 (const ValueAccessor2 &other)
	Copy constructor. More...

ValueAccessor2 &	operator= (const ValueAccessor2 &other)
	Assignment operator. More...

	~ValueAccessor2 () override=default
	Virtual destructor. More...

bool	isCached (const Coord &xyz) const

const ValueType &	getValue (const Coord &xyz) const
	Return the value of the voxel at the given coordinates. More...

bool	isValueOn (const Coord &xyz) const
	Return the active state of the voxel at the given coordinates. More...

bool	probeValue (const Coord &xyz, ValueType &value) const
	Return the active state of the voxel as well as its value. More...

int	getValueDepth (const Coord &xyz) const

bool	isVoxel (const Coord &xyz) const

void	setValueOnly (const Coord &xyz, const ValueType &value)
	Set the value of the voxel at the given coordinate but preserves its active state. More...

void	setValueOff (const Coord &xyz, const ValueType &value)
	Set the value of the voxel at the given coordinates and mark the voxel as inactive. More...

template<typename ModifyOp >
void	modifyValue (const Coord &xyz, const ModifyOp &op)
	Apply a functor to the value of the voxel at the given coordinates and mark the voxel as active. More...

template<typename ModifyOp >
void	modifyValueAndActiveState (const Coord &xyz, const ModifyOp &op)
	Apply a functor to the voxel at the given coordinates. More...

void	setActiveState (const Coord &xyz, bool on=true)
	Set the active state of the voxel at the given coordinates without changing its value. More...

void	setValueOn (const Coord &xyz)
	Mark the voxel at the given coordinates as active without changing its value. More...

void	setValueOff (const Coord &xyz)
	Mark the voxel at the given coordinates as inactive without changing its value. More...

template<typename NodeT >
NodeT *	getNode ()
	Return the cached node of type NodeType. [Mainly for internal use]. More...

template<typename NodeT >
void	insertNode (const Coord &xyz, NodeT &node)

template<typename NodeT >
void	eraseNode ()

void	addLeaf (LeafNodeT *leaf)
	Add the specified leaf to this tree, possibly creating a child branch in the process. If the leaf node already exists, replace it. More...

void	addTile (Index level, const Coord &xyz, const ValueType &value, bool state)
	Add a tile at the specified tree level that contains voxel (x, y, z), possibly deleting existing nodes or creating new nodes in the process. More...

LeafNodeT *	touchLeaf (const Coord &xyz)

template<typename NodeT >
NodeT *	probeNode (const Coord &xyz)

LeafNodeT *	probeLeaf (const Coord &xyz)

template<typename NodeT >
const NodeT *	probeConstLeaf (const Coord &xyz) const

const LeafNodeT *	probeConstLeaf (const Coord &xyz) const

const LeafNodeT *	probeLeaf (const Coord &xyz) const

template<typename NodeT >
const NodeT *	probeConstNode (const Coord &xyz) const

void	clear () override
	Remove all the cached nodes and invalidate the corresponding hash-keys. More...

_TreeType *	getTree () const
	Return a pointer to the tree associated with this accessor. More...

_TreeType &	tree () const
	Return a reference to the tree associated with this accessor. More...


void	setValue (const Coord &xyz, const ValueType &value)
	Set the value of the voxel at the given coordinates and mark the voxel as active. More...

void	setValueOn (const Coord &xyz, const ValueType &value)
	Set the value of the voxel at the given coordinates and mark the voxel as active. More...

Static Public Member Functions
static Index	numCacheLevels ()
	Return the number of cache levels employed by this ValueAccessor. More...

static bool	isSafe ()
	Return true if this accessor is safe, i.e. registered by the tree from which it is constructed. Un-registered accessors can in rare cases be faster because it avoids the (small) overhead of registration, but they are unsafe if the tree is modified. So unless you're an expert it is highly recommended to set IsSafe = true (which is the default). More...

Static Public Attributes
static const bool	IsConstTree

Protected Attributes
_TreeType *	mTree

Friends
template<typename >
class	RootNode

template<typename , Index >
class	InternalNode

template<typename , Index >
class	LeafNode

template<typename >
class	Tree

Detailed Description

template<typename _TreeType, bool IsSafe, Index L0, Index L1>
class openvdb::v9_0::tree::ValueAccessor2< _TreeType, IsSafe, L0, L1 >

Value accessor with two levels of node caching.

The node cache levels are specified by L0 and L1 with the default values 0 and 1 (defined in the forward declaration) corresponding to a LeafNode and its parent InternalNode.

Note: This class is for experts only and should rarely be used directly. Instead use ValueAccessor with its default template arguments.

Member Typedef Documentation

using BaseT = ValueAccessorBase<TreeType, IsSafe>

using InvTreeT = typename RootNodeT::NodeChainType

using LeafNodeT = typename TreeType::LeafNodeType

using NodeT0 = typename InvTreeT::template Get<L0>

using NodeT1 = typename InvTreeT::template Get<L1>

using RootNodeT = typename TreeType::RootNodeType

using TreeType = _TreeType

using ValueType = typename TreeType::ValueType

Constructor & Destructor Documentation

ValueAccessor2 ( TreeType & tree )

inline

Constructor from a tree.

ValueAccessor2 ( const ValueAccessor2< _TreeType, IsSafe, L0, L1 > & other )

inline

Copy constructor.

~ValueAccessor2 ( )

overridedefault

Virtual destructor.

Member Function Documentation

void addLeaf ( LeafNodeT * leaf )

inline

Add the specified leaf to this tree, possibly creating a child branch in the process. If the leaf node already exists, replace it.

void addTile	(	Index	level,
		const Coord &	xyz,
		const ValueType &	value,
		bool	state
	)

inline

Add a tile at the specified tree level that contains voxel (x, y, z), possibly deleting existing nodes or creating new nodes in the process.

void clear ( )

inlineoverridevirtual

Remove all the cached nodes and invalidate the corresponding hash-keys.

Implements ValueAccessorBase< _TreeType, IsSafe >.

void eraseNode ( )

inline

If a node of the given type exists in the cache, remove it, so that isCached(xyz) returns false for any voxel (x, y, z) contained in that node. [Mainly for internal use]

NodeT* getNode ( )

inline

Return the cached node of type NodeType. [Mainly for internal use].

_TreeType * getTree ( ) const

inlineinherited

Return a pointer to the tree associated with this accessor.

The pointer will be null only if the tree from which this accessor was constructed was subsequently deleted (which generally leaves the accessor in an unsafe state).

const ValueType& getValue ( const Coord & xyz ) const

inline

Return the value of the voxel at the given coordinates.

int getValueDepth ( const Coord & xyz ) const

inline

Return the tree depth (0 = root) at which the value of voxel (x, y, z) resides, or -1 if (x, y, z) isn't explicitly represented in the tree (i.e., if it is implicitly a background voxel).

void insertNode	(	const Coord &	xyz,
		NodeT &	node
	)

inline

Cache the given node, which should lie along the path from the root node to the node containing voxel (x, y, z). [Mainly for internal use]

bool isCached ( const Coord & xyz ) const

inline

Return true if any of the nodes along the path to the given voxel have been cached.

static bool isSafe ( )

inlinestaticinherited

Return true if this accessor is safe, i.e. registered by the tree from which it is constructed. Un-registered accessors can in rare cases be faster because it avoids the (small) overhead of registration, but they are unsafe if the tree is modified. So unless you're an expert it is highly recommended to set IsSafe = true (which is the default).

bool isValueOn ( const Coord & xyz ) const

inline

Return the active state of the voxel at the given coordinates.

bool isVoxel ( const Coord & xyz ) const

inline

Return true if the value of voxel (x, y, z) resides at the leaf level of the tree, i.e., if it is not a tile value.

void modifyValue	(	const Coord &	xyz,
		const ModifyOp &	op
	)

inline

Apply a functor to the value of the voxel at the given coordinates and mark the voxel as active.

See Tree::modifyValue() for details.

void modifyValueAndActiveState	(	const Coord &	xyz,
		const ModifyOp &	op
	)

inline

Apply a functor to the voxel at the given coordinates.

See Tree::modifyValueAndActiveState() for details.

static Index numCacheLevels ( )

inlinestatic

Return the number of cache levels employed by this ValueAccessor.

ValueAccessor2& operator= ( const ValueAccessor2< _TreeType, IsSafe, L0, L1 > & other )

inline

Assignment operator.

const NodeT* probeConstLeaf ( const Coord & xyz ) const

inline

Returns: a const pointer to the node of the specified type that contains voxel (x, y, z) and if it doesn't exist, return nullptr.

const LeafNodeT* probeConstLeaf ( const Coord & xyz ) const

inline

Returns: a const pointer to the leaf node that contains voxel (x, y, z) and if it doesn't exist, return nullptr.

const NodeT* probeConstNode ( const Coord & xyz ) const

inline

Returns: a const pointer to the node of the specified type that contains voxel (x, y, z) and if it doesn't exist, return nullptr.

LeafNodeT* probeLeaf ( const Coord & xyz )

inline

Returns: a pointer to the leaf node that contains voxel (x, y, z) and if it doesn't exist, return nullptr.

const LeafNodeT* probeLeaf ( const Coord & xyz ) const

inline

NodeT* probeNode ( const Coord & xyz )

inline

Returns: a pointer to the node of the specified type that contains voxel (x, y, z) and if it doesn't exist, return nullptr.

bool probeValue	(	const Coord &	xyz,
		ValueType &	value
	)		const

inline

Return the active state of the voxel as well as its value.

void setActiveState	(	const Coord &	xyz,
		bool	on = `true`
	)

inline

Set the active state of the voxel at the given coordinates without changing its value.

void setValue	(	const Coord &	xyz,
		const ValueType &	value
	)

inline

Set the value of the voxel at the given coordinates and mark the voxel as active.

void setValueOff	(	const Coord &	xyz,
		const ValueType &	value
	)

inline

Set the value of the voxel at the given coordinates and mark the voxel as inactive.

void setValueOff ( const Coord & xyz )

inline

Mark the voxel at the given coordinates as inactive without changing its value.

void setValueOn	(	const Coord &	xyz,
		const ValueType &	value
	)

inline

Set the value of the voxel at the given coordinates and mark the voxel as active.

void setValueOn ( const Coord & xyz )

inline

Mark the voxel at the given coordinates as active without changing its value.

void setValueOnly	(	const Coord &	xyz,
		const ValueType &	value
	)

inline

Set the value of the voxel at the given coordinate but preserves its active state.

LeafNodeT* touchLeaf ( const Coord & xyz )

inline

Returns: the leaf node that contains voxel (x, y, z) and if it doesn't exist, create it, but preserve the values and active states of all voxels.

Use this method to preallocate a static tree topology over which to safely perform multithreaded processing.

_TreeType & tree ( ) const

inlineinherited

Return a reference to the tree associated with this accessor.

Friends And Related Function Documentation

friend class InternalNode

friend

friend class LeafNode

friend

friend class RootNode

friend

friend class Tree

friend

Member Data Documentation

const bool IsConstTree

staticinherited

_TreeType * mTree

protectedinherited

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Attributes

Friends

Detailed Description

template<typename _TreeType, bool IsSafe, Index L0, Index L1> class openvdb::v9_0::tree::ValueAccessor2< _TreeType, IsSafe, L0, L1 >

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation

template<typename _TreeType, bool IsSafe, Index L0, Index L1>
class openvdb::v9_0::tree::ValueAccessor2< _TreeType, IsSafe, L0, L1 >