BVH_Builder< T, N > Class Template Reference

Performs construction of BVH tree using bounding boxes (AABBs) of abstract objects. More...

#include <BVH_Builder.hxx>

Inheritance diagram for BVH_Builder< T, N >:

Public Member Functions
virtual void	Build (BVH_Set< T, N > *theSet, BVH_Tree< T, N > *theBVH, const BVH_Box< T, N > &theBox) const =0
	Builds BVH using specific algorithm.
Public Member Functions inherited from BVH_BuilderTransient
int	MaxTreeDepth () const
	Returns the maximum depth of constructed BVH.
int	LeafNodeSize () const
	Returns the maximum number of sub-elements in the leaf.
bool	IsParallel () const
	Returns parallel flag.
void	SetParallel (const bool isParallel)
	Set parallel flag controlling possibility of parallel execution.
Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor.
	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing.
Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter.
virtual	~Standard_Transient ()=default
	Destructor must be virtual.
virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object.
bool	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type.
bool	IsInstance (const char *const theTypeName) const
	Returns a true value if this is an instance of TypeName.
bool	IsKind (const opencascade::handle< Standard_Type > &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism.
bool	IsKind (const char *const theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism.
Standard_Transient *	This () const
	Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero.
int	GetRefCount () const noexcept
	Get the reference counter of this object.
void	IncrementRefCounter () noexcept
	Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations.
int	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement.
virtual void	Delete () const
	Memory deallocator for transient classes.

Protected Member Functions
	BVH_Builder (const int theLeafNodeSize, const int theMaxTreeDepth)
	Creates new abstract BVH builder.
void	updateDepth (BVH_Tree< T, N > *theBVH, const int theLevel) const
	Updates depth of constructed BVH tree.
Protected Member Functions inherited from BVH_BuilderTransient
	BVH_BuilderTransient (const int theLeafNodeSize, const int theMaxTreeDepth)
	Creates new abstract BVH builder.

Additional Inherited Members
Public Types inherited from Standard_Transient
typedef void	base_type
	Returns a type descriptor about this object.
Static Public Member Functions inherited from Standard_Transient
static constexpr const char *	get_type_name ()
	Returns a type descriptor about this object.
static const opencascade::handle< Standard_Type > &	get_type_descriptor ()
	Returns type descriptor of Standard_Transient class.
Protected Attributes inherited from BVH_BuilderTransient
int	myMaxTreeDepth
	Maximum depth of constructed BVH.
int	myLeafNodeSize
	Maximum number of objects per leaf.
bool	myIsParallel
	Parallel execution flag.

Detailed Description

template<class T, int N>
class BVH_Builder< T, N >

Performs construction of BVH tree using bounding boxes (AABBs) of abstract objects.

Template Parameters

T	Numeric data type
N	Vector dimension

Constructor & Destructor Documentation

BVH_Builder()

template<class T , int N>

BVH_Builder< T, N >::BVH_Builder ( const int theLeafNodeSize, const int theMaxTreeDepth )

inlineprotected

Creates new abstract BVH builder.

Member Function Documentation

Build()

template<class T , int N>

virtual void BVH_Builder< T, N >::Build ( BVH_Set< T, N > * theSet, BVH_Tree< T, N > * theBVH, const BVH_Box< T, N > & theBox ) const

pure virtual

Builds BVH using specific algorithm.

Implemented in BVH_LinearBuilder< T, N >, and BVH_QueueBuilder< T, N >.

updateDepth()

template<class T , int N>

void BVH_Builder< T, N >::updateDepth ( BVH_Tree< T, N > * theBVH, const int theLevel ) const

inlineprotected

Updates depth of constructed BVH tree.

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The documentation for this class was generated from the following file:

• BVH_Builder.hxx