A framework to define selection of a sensitive entity made of a set of triangles. More...

#include <Select3D_SensitiveTriangulation.hxx>

Inheritance diagram for Select3D_SensitiveTriangulation:

[legend]

Public Member Functions
	Select3D_SensitiveTriangulation (const Handle< SelectMgr_EntityOwner > &theOwnerId, const Handle< Poly_Triangulation > &theTrg, const TopLoc_Location &theInitLoc, const Standard_Boolean theIsInterior=Standard_True)
	Constructs a sensitive triangulation object defined by the owner theOwnerId, the triangulation theTrg, the location theInitLoc, and the flag theIsInterior.

	Select3D_SensitiveTriangulation (const Handle< SelectMgr_EntityOwner > &theOwnerId, const Handle< Poly_Triangulation > &theTrg, const TopLoc_Location &theInitLoc, const Handle< TColStd_HArray1OfInteger > &theFreeEdges, const gp_Pnt &theCOG, const Standard_Boolean theIsInterior)
	Constructs a sensitive triangulation object defined by the owner theOwnerId, the triangulation theTrg, the location theInitLoc, the array of free edges theFreeEdges, the center of gravity theCOG, and the flag theIsInterior. As free edges and the center of gravity do not have to be computed later, this syntax reduces computation time.

bool	LastDetectedTriangle (Poly_Triangle &theTriangle) const
	Get last detected triangle.

bool	LastDetectedTriangle (Poly_Triangle &theTriangle, gp_Pnt theTriNodes[3]) const
	Get last detected triangle.

Standard_Integer	LastDetectedTriangleIndex () const
	Return index of last detected triangle within [1..NbTris] range, or -1 if undefined.

virtual Standard_Integer	NbSubElements () const override
	Returns the amount of nodes in triangulation.

Handle< Select3D_SensitiveEntity >	GetConnected () override
	Originally this method intended to return sensitive entity with new location aLocation, but currently sensitive entities do not hold a location, instead HasLocation() and Location() methods call corresponding entity owner's methods. Thus all entities returned by GetConnected() share the same location propagated from corresponding selectable object. You must redefine this function for any type of sensitive entity which can accept another connected sensitive entity.

const Handle< Poly_Triangulation > &	Triangulation () const

virtual Standard_Integer	Size () const override
	Returns the length of array of triangles or edges.

virtual Select3D_BndBox3d	Box (const Standard_Integer theIdx) const override
	Returns bounding box of triangle/edge with index theIdx.

virtual Standard_Real	Center (const Standard_Integer theIdx, const Standard_Integer theAxis) const override
	Returns geometry center of triangle/edge with index theIdx in array along the given axis theAxis.

virtual void	Swap (const Standard_Integer theIdx1, const Standard_Integer theIdx2) override
	Swaps items with indexes theIdx1 and theIdx2 in array.

virtual Select3D_BndBox3d	BoundingBox () override
	Returns bounding box of the triangulation. If location transformation is set, it will be applied.

virtual gp_Pnt	CenterOfGeometry () const override
	Returns center of triangulation. If location transformation is set, it will be applied.

virtual Standard_Boolean	HasInitLocation () const override
	Returns true if the shape corresponding to the entity has init location.

virtual gp_GTrsf	InvInitLocation () const override
	Returns inversed location transformation matrix if the shape corresponding to this entity has init location set. Otherwise, returns identity matrix.

const TopLoc_Location &	GetInitLocation () const

virtual void	DumpJson (Standard_OStream &theOStream, Standard_Integer theDepth=-1) const override
	Dumps the content of me into the stream.

virtual Standard_Boolean	Matches (SelectBasics_SelectingVolumeManager &theMgr, SelectBasics_PickResult &thePickResult) override
	Checks whether one or more entities of the set overlap current selecting volume.

Public Member Functions inherited from Select3D_SensitiveSet
	Select3D_SensitiveSet (const Handle< SelectMgr_EntityOwner > &theOwnerId)
	Creates new empty sensitive set and its content.

virtual void	BVH () override
	Builds BVH tree for sensitive set. Must be called manually to build BVH tree for any sensitive set in case if its content was initialized not in a constructor, but element by element.

virtual Standard_Boolean	ToBuildBVH () const override
	Returns TRUE if BVH tree is in invalidated state.

void	SetBuilder (const Handle< Select3D_BVHBuilder3d > &theBuilder)
	Sets the method (builder) used to construct BVH.

void	MarkDirty ()
	Marks BVH tree of the set as outdated. It will be rebuild at the next call of BVH()

virtual void	Clear () override
	Destroys cross-reference to avoid memory leak.

Standard_Integer	GetLeafNodeSize () const
	Returns a number of nodes in 1 BVH leaf.

Public Member Functions inherited from Select3D_SensitiveEntity
const Handle< SelectMgr_EntityOwner > &	OwnerId () const
	Returns pointer to owner of the entity.

virtual void	Set (const Handle< SelectMgr_EntityOwner > &theOwnerId)
	Sets owner of the entity.

Standard_Integer	SensitivityFactor () const
	allows a better sensitivity for a specific entity in selection algorithms useful for small sized entities.

void	SetSensitivityFactor (const Standard_Integer theNewSens)
	Allows to manage sensitivity of a particular sensitive entity.

const Handle< Graphic3d_TransformPers > &	TransformPersistence () const
	Return transformation persistence.

virtual void	SetTransformPersistence (const Handle< Graphic3d_TransformPers > &theTrsfPers)
	Set transformation persistence.

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 ()
	Destructor must be virtual.

virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object.

Standard_Boolean	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type.

Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName.

Standard_Boolean	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.

Standard_Boolean	IsKind (const Standard_CString 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.

Standard_Integer	GetRefCount () const noexcept
	Get the reference counter of this object.

void	IncrementRefCounter () noexcept
	Increments the reference counter of this object.

Standard_Integer	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value.

virtual void	Delete () const
	Memory deallocator for transient classes.

Protected Member Functions
void	computeBoundingBox ()
	Compute bounding box.

Select3D_BndBox3d	applyTransformation ()
	Inner function for transformation application to bounding box of the triangulation.

Protected Member Functions inherited from Select3D_SensitiveSet
Standard_Boolean	matches (SelectBasics_SelectingVolumeManager &theMgr, SelectBasics_PickResult &thePickResult, Standard_Boolean theToCheckAllInside)
	Checks whether one or more entities of the set overlap current selecting volume. Implements the traverse of BVH tree built for the set.

Standard_Boolean	processElements (SelectBasics_SelectingVolumeManager &theMgr, Standard_Integer theFirstElem, Standard_Integer theLastElem, Standard_Boolean theIsFullInside, Standard_Boolean theToCheckAllInside, SelectBasics_PickResult &thePickResult, Standard_Integer &theMatchesNb)
	Process elements overlapped by the selection volume.

Protected Member Functions inherited from Select3D_SensitiveEntity
	Select3D_SensitiveEntity (const Handle< SelectMgr_EntityOwner > &theOwnerId)

Protected Attributes
Handle< Poly_Triangulation >	myTriangul

TopLoc_Location	myInitLocation

gp_Pnt	myCDG3D
	Center of the whole triangulation.

Handle< TColStd_HArray1OfInteger >	myFreeEdges

Standard_Boolean	mySensType
	Type of sensitivity: boundary or interior.

Standard_Integer	myPrimitivesNb
	Amount of free edges or triangles depending on sensitivity type.

Handle< TColStd_HArray1OfInteger >	myBVHPrimIndexes
	Indexes of edges or triangles for BVH build.

Select3D_BndBox3d	myBndBox
	Bounding box of the whole triangulation.

gp_GTrsf	myInvInitLocation

Protected Attributes inherited from Select3D_SensitiveSet
BvhPrimitiveSet	myContent
	A link between sensitive entity and BVH_PrimitiveSet.

Standard_Integer	myDetectedIdx
	Index of detected primitive in BVH sorted primitive array.

Protected Attributes inherited from Select3D_SensitiveEntity
Handle< SelectMgr_EntityOwner >	myOwnerId

Handle< Graphic3d_TransformPers >	myTrsfPers

Standard_Integer	mySFactor

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 Select3D_SensitiveSet
static const Handle< Select3D_BVHBuilder3d > &	DefaultBVHBuilder ()
	Return global instance to default BVH builder.

static void	SetDefaultBVHBuilder (const Handle< Select3D_BVHBuilder3d > &theBuilder)
	Assign new BVH builder to be used by default for new sensitive sets (assigning is NOT thread-safe!).

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.

Detailed Description

A framework to define selection of a sensitive entity made of a set of triangles.

Constructor & Destructor Documentation

◆ Select3D_SensitiveTriangulation() [1/2]

Select3D_SensitiveTriangulation::Select3D_SensitiveTriangulation	(	const Handle< SelectMgr_EntityOwner > &	theOwnerId,
		const Handle< Poly_Triangulation > &	theTrg,
		const TopLoc_Location &	theInitLoc,
		const Standard_Boolean	theIsInterior = Standard_True )

Constructs a sensitive triangulation object defined by the owner theOwnerId, the triangulation theTrg, the location theInitLoc, and the flag theIsInterior.

◆ Select3D_SensitiveTriangulation() [2/2]

Select3D_SensitiveTriangulation::Select3D_SensitiveTriangulation	(	const Handle< SelectMgr_EntityOwner > &	theOwnerId,
		const Handle< Poly_Triangulation > &	theTrg,
		const TopLoc_Location &	theInitLoc,
		const Handle< TColStd_HArray1OfInteger > &	theFreeEdges,
		const gp_Pnt &	theCOG,
		const Standard_Boolean	theIsInterior )

Constructs a sensitive triangulation object defined by the owner theOwnerId, the triangulation theTrg, the location theInitLoc, the array of free edges theFreeEdges, the center of gravity theCOG, and the flag theIsInterior. As free edges and the center of gravity do not have to be computed later, this syntax reduces computation time.

Member Function Documentation

◆ applyTransformation()

Select3D_BndBox3d Select3D_SensitiveTriangulation::applyTransformation ( )

protected

Inner function for transformation application to bounding box of the triangulation.

◆ BoundingBox()

virtual Select3D_BndBox3d Select3D_SensitiveTriangulation::BoundingBox ( )

overridevirtual

Returns bounding box of the triangulation. If location transformation is set, it will be applied.

Reimplemented from Select3D_SensitiveSet.

◆ Box()

virtual Select3D_BndBox3d Select3D_SensitiveTriangulation::Box ( const Standard_Integer theIdx ) const

overridevirtual

Returns bounding box of triangle/edge with index theIdx.

Implements Select3D_SensitiveSet.

◆ Center()

virtual Standard_Real Select3D_SensitiveTriangulation::Center	(	const Standard_Integer	theIdx,
		const Standard_Integer	theAxis ) const

overridevirtual

Returns geometry center of triangle/edge with index theIdx in array along the given axis theAxis.

Implements Select3D_SensitiveSet.

◆ CenterOfGeometry()

virtual gp_Pnt Select3D_SensitiveTriangulation::CenterOfGeometry ( ) const

overridevirtual

Returns center of triangulation. If location transformation is set, it will be applied.

Reimplemented from Select3D_SensitiveSet.

◆ computeBoundingBox()

void Select3D_SensitiveTriangulation::computeBoundingBox ( )

protected

Compute bounding box.

◆ DumpJson()

virtual void Select3D_SensitiveTriangulation::DumpJson	(	Standard_OStream &	theOStream,
		Standard_Integer	theDepth = -1 ) const

overridevirtual

Dumps the content of me into the stream.

Reimplemented from Select3D_SensitiveSet.

◆ GetConnected()

Handle< Select3D_SensitiveEntity > Select3D_SensitiveTriangulation::GetConnected ( )

overridevirtual

Originally this method intended to return sensitive entity with new location aLocation, but currently sensitive entities do not hold a location, instead HasLocation() and Location() methods call corresponding entity owner's methods. Thus all entities returned by GetConnected() share the same location propagated from corresponding selectable object. You must redefine this function for any type of sensitive entity which can accept another connected sensitive entity.

Reimplemented from Select3D_SensitiveEntity.

◆ GetInitLocation()

const TopLoc_Location & Select3D_SensitiveTriangulation::GetInitLocation ( ) const

inline

◆ HasInitLocation()

virtual Standard_Boolean Select3D_SensitiveTriangulation::HasInitLocation ( ) const

overridevirtual

Returns true if the shape corresponding to the entity has init location.

Reimplemented from Select3D_SensitiveEntity.

◆ InvInitLocation()

virtual gp_GTrsf Select3D_SensitiveTriangulation::InvInitLocation ( ) const

overridevirtual

Returns inversed location transformation matrix if the shape corresponding to this entity has init location set. Otherwise, returns identity matrix.

Reimplemented from Select3D_SensitiveEntity.

◆ LastDetectedTriangle() [1/2]

bool Select3D_SensitiveTriangulation::LastDetectedTriangle ( Poly_Triangle & theTriangle ) const

Get last detected triangle.

Parameters

theTriangle [out] triangle node indexes

Returns: TRUE if defined

◆ LastDetectedTriangle() [2/2]

bool Select3D_SensitiveTriangulation::LastDetectedTriangle	(	Poly_Triangle &	theTriangle,
		gp_Pnt	theTriNodes[3] ) const

Get last detected triangle.

Parameters

theTriangle	[out] triangle node indexes
theTriNodes	[out] triangle nodes (with pre-applied transformation)

Returns: TRUE if defined

◆ LastDetectedTriangleIndex()

Standard_Integer Select3D_SensitiveTriangulation::LastDetectedTriangleIndex ( ) const

inline

Return index of last detected triangle within [1..NbTris] range, or -1 if undefined.

◆ Matches()

virtual Standard_Boolean Select3D_SensitiveTriangulation::Matches	(	SelectBasics_SelectingVolumeManager &	theMgr,
		SelectBasics_PickResult &	thePickResult )

overridevirtual

Checks whether one or more entities of the set overlap current selecting volume.

Reimplemented from Select3D_SensitiveSet.

◆ NbSubElements()

virtual Standard_Integer Select3D_SensitiveTriangulation::NbSubElements ( ) const

overridevirtual

Returns the amount of nodes in triangulation.

Implements Select3D_SensitiveEntity.

◆ Size()

virtual Standard_Integer Select3D_SensitiveTriangulation::Size ( ) const

overridevirtual

Returns the length of array of triangles or edges.

Implements Select3D_SensitiveSet.

◆ Swap()

virtual void Select3D_SensitiveTriangulation::Swap	(	const Standard_Integer	theIdx1,
		const Standard_Integer	theIdx2 )

overridevirtual

Swaps items with indexes theIdx1 and theIdx2 in array.

Implements Select3D_SensitiveSet.

◆ Triangulation()

const Handle< Poly_Triangulation > & Select3D_SensitiveTriangulation::Triangulation ( ) const

inline

Field Documentation

◆ myBndBox

Select3D_BndBox3d Select3D_SensitiveTriangulation::myBndBox

mutableprotected

Bounding box of the whole triangulation.

◆ myBVHPrimIndexes

Handle< TColStd_HArray1OfInteger > Select3D_SensitiveTriangulation::myBVHPrimIndexes

protected

Indexes of edges or triangles for BVH build.

◆ myCDG3D

gp_Pnt Select3D_SensitiveTriangulation::myCDG3D

protected

Center of the whole triangulation.

◆ myFreeEdges

Handle< TColStd_HArray1OfInteger > Select3D_SensitiveTriangulation::myFreeEdges

protected

◆ myInitLocation

TopLoc_Location Select3D_SensitiveTriangulation::myInitLocation

protected

◆ myInvInitLocation

gp_GTrsf Select3D_SensitiveTriangulation::myInvInitLocation

protected

◆ myPrimitivesNb

Standard_Integer Select3D_SensitiveTriangulation::myPrimitivesNb

protected

Amount of free edges or triangles depending on sensitivity type.

◆ mySensType

Standard_Boolean Select3D_SensitiveTriangulation::mySensType

protected

Type of sensitivity: boundary or interior.

◆ myTriangul

Handle< Poly_Triangulation > Select3D_SensitiveTriangulation::myTriangul

protected

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

Select3D_SensitiveTriangulation.hxx

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Select3D_SensitiveTriangulation() [1/2]

◆ Select3D_SensitiveTriangulation() [2/2]

Member Function Documentation

◆ applyTransformation()

◆ BoundingBox()

◆ Box()

◆ Center()

◆ CenterOfGeometry()

◆ computeBoundingBox()

◆ DumpJson()

◆ GetConnected()

◆ GetInitLocation()

◆ HasInitLocation()

◆ InvInitLocation()

◆ LastDetectedTriangle() [1/2]

◆ LastDetectedTriangle() [2/2]

◆ LastDetectedTriangleIndex()

◆ Matches()

◆ NbSubElements()

◆ Size()

◆ Swap()

◆ Triangulation()

Field Documentation

◆ myBndBox

◆ myBVHPrimIndexes

◆ myCDG3D

◆ myFreeEdges

◆ myInitLocation

◆ myInvInitLocation

◆ myPrimitivesNb

◆ mySensType

◆ myTriangul