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 Handle< BVH_Builder3d > &theBuilder)
	Creates an empty primitive set for BVH clipping.
virtual Standard_Integer	Size () const override
	Returns total number of structures.
virtual Graphic3d_BndBox3d	Box (const Standard_Integer theIdx) const override
	Returns AABB of the structure.
virtual Standard_Real	Center (const Standard_Integer theIdx, const Standard_Integer theAxis) const override
	Calculates center of the AABB along given axis.
virtual void	Swap (const Standard_Integer theIdx1, const Standard_Integer theIdx2) override
	Swaps structures with the given indices.
Standard_Boolean	Add (const Graphic3d_CStructure *theStruct)
	Adds structure to the set.
Standard_Boolean	Remove (const Graphic3d_CStructure *theStruct)
	Removes the given structure from the set.
void	Clear ()
	Cleans the whole primitive set.
const Graphic3d_CStructure *	GetStructureById (Standard_Integer 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	Marks object state as outdated (needs BVH rebuilding).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< Standard_Real, 3 > > &	BVH (const Handle< Graphic3d_Camera > &theCamera, const Graphic3d_Mat4d &theProjectionMatrix, const Graphic3d_Mat4d &theWorldViewMatrix, const Standard_Integer theViewportWidth, const Standard_Integer theViewportHeight, const Graphic3d_WorldViewProjState &theWVPState)
	Returns BVH tree for the given world view projection (builds it if necessary).
const Handle< BVH_Builder3d > &	Builder () const
	Returns builder for bottom-level BVH.
void	SetBuilder (const Handle< BVH_Builder3d > &theBuilder)
	Assigns builder for bottom-level BVH.
Public Member Functions inherited from BVH_Set< Standard_Real, 3 >
	BVH_Set ()
	Creates new abstract set of objects.
virtual	~BVH_Set ()
	Releases resources of set of objects.
virtual BVH_Box< Standard_Real, N >	Box () const
	Returns AABB of the entire set of objects.

Additional Inherited Members
Public Types inherited from BVH_Set< Standard_Real, 3 >
typedef BVH_Box< Standard_Real, 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 Handle< BVH_Builder3d > &

theBuilder

)

Creates an empty primitive set for BVH clipping.

Member Function Documentation

Add()

Standard_Boolean 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()

virtual Graphic3d_BndBox3d Graphic3d_BvhCStructureSetTrsfPers::Box ( const Standard_Integer theIdx ) const

overridevirtual

Returns AABB of the structure.

Implements BVH_Set< Standard_Real, 3 >.

Builder()

const Handle< BVH_Builder3d > & Graphic3d_BvhCStructureSetTrsfPers::Builder ( ) const

inline

Returns builder for bottom-level BVH.

BVH()

const opencascade::handle< BVH_Tree< Standard_Real, 3 > > & Graphic3d_BvhCStructureSetTrsfPers::BVH	(	const Handle< Graphic3d_Camera > &	theCamera,
		const Graphic3d_Mat4d &	theProjectionMatrix,
		const Graphic3d_Mat4d &	theWorldViewMatrix,
		const Standard_Integer	theViewportWidth,
		const Standard_Integer	theViewportHeight,
		const Graphic3d_WorldViewProjState &	theWVPState )

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

Center()

virtual Standard_Real Graphic3d_BvhCStructureSetTrsfPers::Center ( const Standard_Integer theIdx, const Standard_Integer theAxis ) const

overridevirtual

Calculates center of the AABB along given axis.

Implements BVH_Set< Standard_Real, 3 >.

Clear()

void Graphic3d_BvhCStructureSetTrsfPers::Clear

(

)

Cleans the whole primitive set.

GetStructureById()

const Graphic3d_CStructure * Graphic3d_BvhCStructureSetTrsfPers::GetStructureById

(

Standard_Integer

theId

)

Returns the structure corresponding to the given ID.

MarkDirty()

void Graphic3d_BvhCStructureSetTrsfPers::MarkDirty ( )

inline

Marks object state as outdated (needs BVH rebuilding).

Remove()

Standard_Boolean 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 Handle< BVH_Builder3d > & theBuilder )

inline

Assigns builder for bottom-level BVH.

Size()

virtual Standard_Integer Graphic3d_BvhCStructureSetTrsfPers::Size ( ) const

overridevirtual

Returns total number of structures.

Implements BVH_Set< Standard_Real, 3 >.

Structures()

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

inline

Access directly a collection of structures.

Swap()

virtual void Graphic3d_BvhCStructureSetTrsfPers::Swap ( const Standard_Integer theIdx1, const Standard_Integer theIdx2 )

overridevirtual

Swaps structures with the given indices.

Implements BVH_Set< Standard_Real, 3 >.

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

• Graphic3d_BvhCStructureSetTrsfPers.hxx