OpenGl_TriangleSet Class Reference

Triangulation of single OpenGL primitive array. More...

#include <OpenGl_SceneGeometry.hxx>

Inheritance diagram for OpenGl_TriangleSet:

Public Member Functions
	OpenGl_TriangleSet (const size_t theArrayID, const opencascade::handle< BVH_Builder< float, 3 > > &theBuilder)
	Creates new OpenGL element triangulation.
size_t	AssociatedPArrayID () const
	Returns ID of associated primitive array.
int	MaterialIndex () const
	Returns material index of triangle set.
void	SetMaterialIndex (int theMatID)
	Sets material index for entire triangle set.
BVH_BoxNt	Box () const override
	Returns AABB of primitive set.
float	Center (const int theIndex, const int theAxis) const override
	Returns centroid position along the given axis.
const QuadBvhHandle &	QuadBVH ()
	Returns quad BVH (QBVH) tree produced from binary BVH.
Public Member Functions inherited from BVH_Triangulation< float, 3 >
	BVH_Triangulation ()=default
	Creates empty triangulation.
	BVH_Triangulation (const opencascade::handle< BVH_Builder< float, N > > &theBuilder)
	Creates empty triangulation.
	~BVH_Triangulation () override=default
	Releases resources of triangulation.
int	Size () const override
	Returns total number of triangles.
BVH_Box< float, N >	Box (const int theIndex) const override
	Returns AABB of the given triangle.
void	Swap (const int theIndex1, const int theIndex2) override
	Performs transposing the two given triangles in the set.
Public Member Functions inherited from BVH_PrimitiveSet< T, N >
	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.
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.

Data Fields
BVH_Array3f	Normals
	Array of vertex normals.
BVH_Array2f	TexCrds
	Array of texture coords.
Data Fields inherited from BVH_Triangulation< float, 3 >
BVH::ArrayType< float, N >::Type	Vertices
	Array of vertex coordinates.
BVH_Array4i	Elements
	Array of indices of triangle vertices.

Static Public Attributes
static const int	INVALID_MATERIAL = -1
	Value of invalid material index to return in case of errors.
Static Public Attributes inherited from BVH_PrimitiveSet< T, N >
static const int	MaxTreeDepth = BVH_Constants_MaxTreeDepth

Additional Inherited Members
Public Types inherited from BVH_Triangulation< float, 3 >
typedef BVH::VectorType< float, N >::Type	BVH_VecNt
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.
Protected Member Functions inherited from BVH_PrimitiveSet< T, N >
virtual void	Update ()
	Updates BVH of primitive set.
Protected Member Functions inherited from BVH_ObjectTransient
	BVH_ObjectTransient ()
	Creates new abstract geometric object.
Protected Attributes inherited from BVH_PrimitiveSet< T, N >
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.

Detailed Description

Triangulation of single OpenGL primitive array.

Constructor & Destructor Documentation

OpenGl_TriangleSet()

OpenGl_TriangleSet::OpenGl_TriangleSet	(	const size_t	theArrayID,
		const opencascade::handle< BVH_Builder< float, 3 > > &	theBuilder )

Creates new OpenGL element triangulation.

Member Function Documentation

AssociatedPArrayID()

size_t OpenGl_TriangleSet::AssociatedPArrayID ( ) const

inline

Returns ID of associated primitive array.

Box()

BVH_BoxNt OpenGl_TriangleSet::Box ( ) const

overridevirtual

Returns AABB of primitive set.

Reimplemented from BVH_PrimitiveSet< T, N >.

Center()

float OpenGl_TriangleSet::Center ( const int theIndex, const int theAxis ) const

overridevirtual

Returns centroid position along the given axis.

Reimplemented from BVH_Triangulation< float, 3 >.

MaterialIndex()

int OpenGl_TriangleSet::MaterialIndex ( ) const

inline

Returns material index of triangle set.

QuadBVH()

const QuadBvhHandle & OpenGl_TriangleSet::QuadBVH

(

)

Returns quad BVH (QBVH) tree produced from binary BVH.

SetMaterialIndex()

void OpenGl_TriangleSet::SetMaterialIndex ( int theMatID )

inline

Sets material index for entire triangle set.

Field Documentation

INVALID_MATERIAL

const int OpenGl_TriangleSet::INVALID_MATERIAL = -1

static

Value of invalid material index to return in case of errors.

Normals

BVH_Array3f OpenGl_TriangleSet::Normals

Array of vertex normals.

TexCrds

BVH_Array2f OpenGl_TriangleSet::TexCrds

Array of texture coords.

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

• OpenGl_SceneGeometry.hxx