Set of abstract geometric primitives organized with bounding volume hierarchy (BVH). Unlike an object set, this collection is designed for storing structural elements of a single object (such as triangles in the object triangulation). Because there may be a large number of such elements, the implementations of this interface should be sufficiently optimized. More...

#include <BVH_PrimitiveSet.hxx>

Inheritance diagram for BVH_PrimitiveSet< T, N >:

[legend]

Public Member Functions
	BVH_PrimitiveSet ()
	Creates set of abstract primitives.
	BVH_PrimitiveSet (const opencascade::handle< BVH_Builder< T, N > > &theBuilder)
	Creates set of abstract primitives.
	~BVH_PrimitiveSet () override
	Releases resources of set of abstract primitives.
BVH_Box< T, N >	Box () const override
	Returns AABB of primitive set.
virtual const opencascade::handle< BVH_Tree< T, N > > &	BVH ()
	Returns BVH tree (and builds it if necessary).
virtual const opencascade::handle< BVH_Builder< T, N > > &	Builder () const
	Returns the method (builder) used to construct BVH.
virtual void	SetBuilder (const opencascade::handle< BVH_Builder< T, N > > &theBuilder)
	Sets the method (builder) used to construct BVH.
Public Member Functions inherited from BVH_Object< T, N >
	BVH_Object ()=default
	Creates new abstract geometric object.
	~BVH_Object () override=default
	Releases resources of geometric object.
Public Member Functions inherited from BVH_ObjectTransient
virtual const occ::handle< BVH_Properties > &	Properties () const
	Returns properties of the geometric object.
virtual void	SetProperties (const occ::handle< BVH_Properties > &theProperties)
	Sets properties of the geometric object.
virtual bool	IsDirty () const
	Returns TRUE if object state should be updated.
virtual void	MarkDirty ()
	Marks object state as outdated (needs BVH rebuilding).
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.
Public Member Functions inherited from BVH_Set< T, N >
	BVH_Set ()=default
	Creates new abstract set of objects.
virtual	~BVH_Set ()=default
	Releases resources of set of objects.
virtual int	Size () const =0
	Returns total number of objects.
virtual BVH_Box< T, N >	Box (const int theIndex) const =0
	Returns AABB of the given object.
virtual T	Center (const int theIndex, const int theAxis) const =0
	Returns centroid position along the given axis.
virtual void	Swap (const int theIndex1, const int theIndex2)=0
	Performs transposing the two given objects in the set.

Static Public Attributes
static const int	MaxTreeDepth = BVH_Constants_MaxTreeDepth

Protected Member Functions
virtual void	Update ()
	Updates BVH of primitive set.
Protected Member Functions inherited from BVH_ObjectTransient
	BVH_ObjectTransient ()
	Creates new abstract geometric object.

Protected Attributes
opencascade::handle< BVH_Tree< T, N > >	myBVH
	Constructed bottom-level BVH.
opencascade::handle< BVH_Builder< T, N > >	myBuilder
	Builder for bottom-level BVH.
BVH_Box< T, N >	myBox
	Cached bounding box of geometric primitives.
Protected Attributes inherited from BVH_ObjectTransient
bool	myIsDirty
	Marks internal object state as outdated.
occ::handle< BVH_Properties >	myProperties
	Generic properties assigned to the object.

Additional Inherited Members
typedef void	base_type
	Returns a type descriptor about this object.
Public Types inherited from BVH_Set< T, N >
typedef BVH_Box< T, N >	BVH_BoxNt
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.

Detailed Description

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

Set of abstract geometric primitives organized with bounding volume hierarchy (BVH). Unlike an object set, this collection is designed for storing structural elements of a single object (such as triangles in the object triangulation). Because there may be a large number of such elements, the implementations of this interface should be sufficiently optimized.

Template Parameters

T	Numeric data type
N	Vector dimension

Constructor & Destructor Documentation

◆ BVH_PrimitiveSet() [1/2]

template<class T, int N>

BVH_PrimitiveSet< T, N >::BVH_PrimitiveSet ( )

inline

Creates set of abstract primitives.

◆ BVH_PrimitiveSet() [2/2]

template<class T, int N>

BVH_PrimitiveSet< T, N >::BVH_PrimitiveSet ( const opencascade::handle< BVH_Builder< T, N > > & theBuilder )

inline

Creates set of abstract primitives.

◆ ~BVH_PrimitiveSet()

template<class T, int N>

BVH_PrimitiveSet< T, N >::~BVH_PrimitiveSet ( )

inlineoverride

Releases resources of set of abstract primitives.

Member Function Documentation

◆ Box()

template<class T, int N>

BVH_Box< T, N > BVH_PrimitiveSet< T, N >::Box ( ) const

inlineoverridevirtual

Returns AABB of primitive set.

Implements BVH_Object< T, N >.

Reimplemented in Graphic3d_BvhCStructureSet, OpenGl_TriangleSet, Select3D_SensitiveSet::BvhPrimitiveSet, and SelectMgr_SensitiveEntitySet.

◆ Builder()

template<class T, int N>

virtual const opencascade::handle< BVH_Builder< T, N > > & BVH_PrimitiveSet< T, N >::Builder ( ) const

inlinevirtual

Returns the method (builder) used to construct BVH.

◆ BVH()

template<class T, int N>

virtual const opencascade::handle< BVH_Tree< T, N > > & BVH_PrimitiveSet< T, N >::BVH ( )

inlinevirtual

Returns BVH tree (and builds it if necessary).

◆ SetBuilder()

template<class T, int N>

virtual void BVH_PrimitiveSet< T, N >::SetBuilder ( const opencascade::handle< BVH_Builder< T, N > > & theBuilder )

inlinevirtual

Sets the method (builder) used to construct BVH.

◆ Update()

template<class T, int N>

virtual void BVH_PrimitiveSet< T, N >::Update ( )

inlineprotectedvirtual

Updates BVH of primitive set.

Field Documentation

◆ MaxTreeDepth

template<class T, int N>

const int BVH_PrimitiveSet< T, N >::MaxTreeDepth = BVH_Constants_MaxTreeDepth

static

◆ myBox

template<class T, int N>

BVH_Box<T, N> BVH_PrimitiveSet< T, N >::myBox

mutableprotected

Cached bounding box of geometric primitives.

◆ myBuilder

template<class T, int N>

opencascade::handle<BVH_Builder<T, N> > BVH_PrimitiveSet< T, N >::myBuilder

protected

Builder for bottom-level BVH.

◆ myBVH

template<class T, int N>

opencascade::handle<BVH_Tree<T, N> > BVH_PrimitiveSet< T, N >::myBVH

protected

Constructed bottom-level BVH.

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

BVH_PrimitiveSet.hxx

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ BVH_PrimitiveSet() [1/2]

◆ BVH_PrimitiveSet() [2/2]

◆ ~BVH_PrimitiveSet()

Member Function Documentation

◆ Box()

◆ Builder()

◆ BVH()

◆ SetBuilder()

◆ Update()

Field Documentation

◆ MaxTreeDepth

◆ myBox

◆ myBuilder

◆ myBVH