Graphic3d_BvhCStructureSetTrsfPers Class Reference

Set of transformation persistent OpenGl_Structure for building BVH tree. Provides built-in mechanism to invalidate tree when world view projection state changes. Due to frequent invalidation of BVH tree the choice of BVH tree builder is made in favor of BVH linear builder (quick rebuild). More...

#include <Graphic3d_BvhCStructureSetTrsfPers.hxx>

Inheritance diagram for Graphic3d_BvhCStructureSetTrsfPers:

Public Member Functions
	Graphic3d_BvhCStructureSetTrsfPers (const occ::handle< BVH_Builder3d > &theBuilder)
	Creates an empty primitive set for BVH clipping.
int	Size () const override
	Returns total number of structures.
Graphic3d_BndBox3d	Box (const int theIdx) const override
	Returns AABB of the structure.
double	Center (const int theIdx, const int theAxis) const override
	Calculates center of the AABB along given axis.
void	Swap (const int theIdx1, const int theIdx2) override
	Swaps structures with the given indices.
bool	Add (const Graphic3d_CStructure *theStruct)
	Adds structure to the set.
bool	Remove (const Graphic3d_CStructure *theStruct)
	Removes the given structure from the set.
void	Clear ()
	Cleans the whole primitive set.
const Graphic3d_CStructure *	GetStructureById (int theId)
	Returns the structure corresponding to the given ID.
const NCollection_IndexedMap< const Graphic3d_CStructure * > &	Structures () const
	Access directly a collection of structures.
void	MarkDirty ()
	Marks object state as outdated (needs BVH rebuilding).
const opencascade::handle< BVH_Tree< double, 3 > > &	BVH (const occ::handle< Graphic3d_Camera > &theCamera, const NCollection_Mat4< double > &theProjectionMatrix, const NCollection_Mat4< double > &theWorldViewMatrix, const int theViewportWidth, const int theViewportHeight, const Graphic3d_WorldViewProjState &theWVPState)
	Returns BVH tree for the given world view projection (builds it if necessary).
const occ::handle< BVH_Builder3d > &	Builder () const
	Returns builder for bottom-level BVH.
void	SetBuilder (const occ::handle< BVH_Builder3d > &theBuilder)
	Assigns builder for bottom-level BVH.
Public Member Functions inherited from BVH_Set< double, 3 >
	BVH_Set ()=default
	Creates new abstract set of objects.
virtual	~BVH_Set ()=default
	Releases resources of set of objects.
virtual BVH_Box< double, N >	Box () const
	Returns AABB of the entire set of objects.

Additional Inherited Members
Public Types inherited from BVH_Set< double, 3 >
typedef BVH_Box< double, N >	BVH_BoxNt

Detailed Description

Set of transformation persistent OpenGl_Structure for building BVH tree. Provides built-in mechanism to invalidate tree when world view projection state changes. Due to frequent invalidation of BVH tree the choice of BVH tree builder is made in favor of BVH linear builder (quick rebuild).

Constructor & Destructor Documentation

Graphic3d_BvhCStructureSetTrsfPers()

Graphic3d_BvhCStructureSetTrsfPers::Graphic3d_BvhCStructureSetTrsfPers

(

const occ::handle< BVH_Builder3d > &

theBuilder

)

Creates an empty primitive set for BVH clipping.

Member Function Documentation

Add()

bool Graphic3d_BvhCStructureSetTrsfPers::Add

(

const Graphic3d_CStructure *

theStruct

)

Adds structure to the set.

Returns

true if structure added, otherwise returns false (structure already in the set).

Box()

Graphic3d_BndBox3d Graphic3d_BvhCStructureSetTrsfPers::Box ( const int theIdx ) const

override

Returns AABB of the structure.

Builder()

const occ::handle< BVH_Builder3d > & Graphic3d_BvhCStructureSetTrsfPers::Builder ( ) const

inline

Returns builder for bottom-level BVH.

BVH()

const opencascade::handle< BVH_Tree< double, 3 > > & Graphic3d_BvhCStructureSetTrsfPers::BVH	(	const occ::handle< Graphic3d_Camera > &	theCamera,
		const NCollection_Mat4< double > &	theProjectionMatrix,
		const NCollection_Mat4< double > &	theWorldViewMatrix,
		const int	theViewportWidth,
		const int	theViewportHeight,
		const Graphic3d_WorldViewProjState &	theWVPState )

Returns BVH tree for the given world view projection (builds it if necessary).

Center()

double Graphic3d_BvhCStructureSetTrsfPers::Center ( const int theIdx, const int theAxis ) const

overridevirtual

Calculates center of the AABB along given axis.

Implements BVH_Set< double, 3 >.

Clear()

void Graphic3d_BvhCStructureSetTrsfPers::Clear

(

)

Cleans the whole primitive set.

GetStructureById()

const Graphic3d_CStructure * Graphic3d_BvhCStructureSetTrsfPers::GetStructureById

(

int

theId

)

Returns the structure corresponding to the given ID.

MarkDirty()

void Graphic3d_BvhCStructureSetTrsfPers::MarkDirty ( )

inline

Marks object state as outdated (needs BVH rebuilding).

Remove()

bool Graphic3d_BvhCStructureSetTrsfPers::Remove

(

const Graphic3d_CStructure *

theStruct

)

Removes the given structure from the set.

Returns

true if structure removed, otherwise returns false (structure is not in the set).

SetBuilder()

void Graphic3d_BvhCStructureSetTrsfPers::SetBuilder ( const occ::handle< BVH_Builder3d > & theBuilder )

inline

Assigns builder for bottom-level BVH.

Size()

int Graphic3d_BvhCStructureSetTrsfPers::Size ( ) const

overridevirtual

Returns total number of structures.

Implements BVH_Set< double, 3 >.

Structures()

const NCollection_IndexedMap< const Graphic3d_CStructure * > & Graphic3d_BvhCStructureSetTrsfPers::Structures ( ) const

inline

Access directly a collection of structures.

Swap()

void Graphic3d_BvhCStructureSetTrsfPers::Swap ( const int theIdx1, const int theIdx2 )

overridevirtual

Swaps structures with the given indices.

Implements BVH_Set< double, 3 >.

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

• Graphic3d_BvhCStructureSetTrsfPers.hxx