This class provides a generic algorithm to intersect 2 surfaces. More...

#include <IntPatch_Intersection.hxx>

Public Member Functions
	IntPatch_Intersection ()

	IntPatch_Intersection (const Handle< Adaptor3d_Surface > &S1, const Handle< Adaptor3d_TopolTool > &D1, const Handle< Adaptor3d_Surface > &S2, const Handle< Adaptor3d_TopolTool > &D2, const Standard_Real TolArc, const Standard_Real TolTang)

	IntPatch_Intersection (const Handle< Adaptor3d_Surface > &S1, const Handle< Adaptor3d_TopolTool > &D1, const Standard_Real TolArc, const Standard_Real TolTang)

void	SetTolerances (const Standard_Real TolArc, const Standard_Real TolTang, const Standard_Real UVMaxStep, const Standard_Real Fleche)
	Set the tolerances used by the algorithms: — Implicit - Parametric — Parametric - Parametric — Implicit - Implicit.

void	Perform (const Handle< Adaptor3d_Surface > &S1, const Handle< Adaptor3d_TopolTool > &D1, const Handle< Adaptor3d_Surface > &S2, const Handle< Adaptor3d_TopolTool > &D2, const Standard_Real TolArc, const Standard_Real TolTang, const Standard_Boolean isGeomInt=Standard_True, const Standard_Boolean theIsReqToKeepRLine=Standard_False, const Standard_Boolean theIsReqToPostWLProc=Standard_True)
	Flag theIsReqToKeepRLine has been entered only for compatibility with TopOpeBRep package. It shall be deleted after deleting TopOpeBRep. When intersection result returns IntPatch_RLine and another IntPatch_Line (not restriction) we (in case of theIsReqToKeepRLine==TRUE) will always keep both lines even if they are coincided. Flag theIsReqToPostWLProc has been entered only for compatibility with TopOpeBRep package. It shall be deleted after deleting TopOpeBRep. If theIsReqToPostWLProc == FALSE, then we will work with Walking-line obtained after intersection algorithm directly (without any post-processing).

void	Perform (const Handle< Adaptor3d_Surface > &S1, const Handle< Adaptor3d_TopolTool > &D1, const Handle< Adaptor3d_Surface > &S2, const Handle< Adaptor3d_TopolTool > &D2, const Standard_Real TolArc, const Standard_Real TolTang, IntSurf_ListOfPntOn2S &LOfPnts, const Standard_Boolean isGeomInt=Standard_True, const Standard_Boolean theIsReqToKeepRLine=Standard_False, const Standard_Boolean theIsReqToPostWLProc=Standard_True)
	If isGeomInt == Standard_False, then method Param-Param intersection will be used. Flag theIsReqToKeepRLine has been entered only for compatibility with TopOpeBRep package. It shall be deleted after deleting TopOpeBRep. When intersection result returns IntPatch_RLine and another IntPatch_Line (not restriction) we (in case of theIsReqToKeepRLine==TRUE) will always keep both lines even if they are coincided. Flag theIsReqToPostWLProc has been entered only for compatibility with TopOpeBRep package. It shall be deleted after deleting TopOpeBRep. If theIsReqToPostWLProc == FALSE, then we will work with Walking-line obtained after intersection algorithm directly (without any post-processing).

void	Perform (const Handle< Adaptor3d_Surface > &S1, const Handle< Adaptor3d_TopolTool > &D1, const Handle< Adaptor3d_Surface > &S2, const Handle< Adaptor3d_TopolTool > &D2, const Standard_Real U1, const Standard_Real V1, const Standard_Real U2, const Standard_Real V2, const Standard_Real TolArc, const Standard_Real TolTang)
	Perform with start point.

void	Perform (const Handle< Adaptor3d_Surface > &S1, const Handle< Adaptor3d_TopolTool > &D1, const Standard_Real TolArc, const Standard_Real TolTang)
	Uses for finding self-intersected surfaces.

Standard_Boolean	IsDone () const
	Returns True if the calculus was successful.

Standard_Boolean	IsEmpty () const
	Returns true if the is no intersection.

Standard_Boolean	TangentFaces () const
	Returns True if the two patches are considered as entirely tangent, i-e every restriction arc of one patch is inside the geometric base of the other patch.

Standard_Boolean	OppositeFaces () const
	Returns True when the TangentFaces returns True and the normal vectors evaluated at a point on the first and the second surface are opposite. The exception DomainError is raised if TangentFaces returns False.

Standard_Integer	NbPnts () const
	Returns the number of "single" points.

const IntPatch_Point &	Point (const Standard_Integer Index) const
	Returns the point of range Index. An exception is raised if Index<=0 or Index>NbPnt.

Standard_Integer	NbLines () const
	Returns the number of intersection lines.

const Handle< IntPatch_Line > &	Line (const Standard_Integer Index) const
	Returns the line of range Index. An exception is raised if Index<=0 or Index>NbLine.

const IntPatch_SequenceOfLine &	SequenceOfLine () const

void	Dump (const Standard_Integer Mode, const Handle< Adaptor3d_Surface > &S1, const Handle< Adaptor3d_TopolTool > &D1, const Handle< Adaptor3d_Surface > &S2, const Handle< Adaptor3d_TopolTool > &D2) const
	Dump of each result line. Mode for more accurate dumps.

Static Public Member Functions
static Standard_Boolean	CheckSingularPoints (const Handle< Adaptor3d_Surface > &theS1, const Handle< Adaptor3d_TopolTool > &theD1, const Handle< Adaptor3d_Surface > &theS2, Standard_Real &theDist)
	Checks if surface theS1 has degenerated boundary (dS/du or dS/dv = 0) and calculates minimal distance between corresponding singular points and surface theS2 If singular point exists the method returns "true" and stores minimal distance in theDist.

static Standard_Real	DefineUVMaxStep (const Handle< Adaptor3d_Surface > &theS1, const Handle< Adaptor3d_TopolTool > &theD1, const Handle< Adaptor3d_Surface > &theS2, const Handle< Adaptor3d_TopolTool > &theD2)
	Calculates recommended value for myUVMaxStep depending on surfaces and their domains.

static void	PrepareSurfaces (const Handle< Adaptor3d_Surface > &theS1, const Handle< Adaptor3d_TopolTool > &theD1, const Handle< Adaptor3d_Surface > &theS2, const Handle< Adaptor3d_TopolTool > &theD2, const Standard_Real Tol, NCollection_Vector< Handle< Adaptor3d_Surface > > &theSeqHS1, NCollection_Vector< Handle< Adaptor3d_Surface > > &theSeqHS2)
	Prepares surfaces for intersection.

Detailed Description

This class provides a generic algorithm to intersect 2 surfaces.

Constructor & Destructor Documentation

◆ IntPatch_Intersection() [1/3]

IntPatch_Intersection::IntPatch_Intersection ( )

◆ IntPatch_Intersection() [2/3]

IntPatch_Intersection::IntPatch_Intersection	(	const Handle< Adaptor3d_Surface > &	S1,
		const Handle< Adaptor3d_TopolTool > &	D1,
		const Handle< Adaptor3d_Surface > &	S2,
		const Handle< Adaptor3d_TopolTool > &	D2,
		const Standard_Real	TolArc,
		const Standard_Real	TolTang
	)

◆ IntPatch_Intersection() [3/3]

IntPatch_Intersection::IntPatch_Intersection	(	const Handle< Adaptor3d_Surface > &	S1,
		const Handle< Adaptor3d_TopolTool > &	D1,
		const Standard_Real	TolArc,
		const Standard_Real	TolTang
	)

Member Function Documentation

◆ CheckSingularPoints()

static Standard_Boolean IntPatch_Intersection::CheckSingularPoints	(	const Handle< Adaptor3d_Surface > &	theS1,
		const Handle< Adaptor3d_TopolTool > &	theD1,
		const Handle< Adaptor3d_Surface > &	theS2,
		Standard_Real &	theDist
	)

static

Checks if surface theS1 has degenerated boundary (dS/du or dS/dv = 0) and calculates minimal distance between corresponding singular points and surface theS2 If singular point exists the method returns "true" and stores minimal distance in theDist.

◆ DefineUVMaxStep()

static Standard_Real IntPatch_Intersection::DefineUVMaxStep	(	const Handle< Adaptor3d_Surface > &	theS1,
		const Handle< Adaptor3d_TopolTool > &	theD1,
		const Handle< Adaptor3d_Surface > &	theS2,
		const Handle< Adaptor3d_TopolTool > &	theD2
	)

static

Calculates recommended value for myUVMaxStep depending on surfaces and their domains.

◆ Dump()

void IntPatch_Intersection::Dump	(	const Standard_Integer	Mode,
		const Handle< Adaptor3d_Surface > &	S1,
		const Handle< Adaptor3d_TopolTool > &	D1,
		const Handle< Adaptor3d_Surface > &	S2,
		const Handle< Adaptor3d_TopolTool > &	D2
	)		const

Dump of each result line. Mode for more accurate dumps.

◆ IsDone()

Standard_Boolean IntPatch_Intersection::IsDone ( ) const

Returns True if the calculus was successful.

◆ IsEmpty()

Standard_Boolean IntPatch_Intersection::IsEmpty ( ) const

Returns true if the is no intersection.

◆ Line()

const Handle< IntPatch_Line > & IntPatch_Intersection::Line ( const Standard_Integer Index ) const

Returns the line of range Index. An exception is raised if Index<=0 or Index>NbLine.

◆ NbLines()

Standard_Integer IntPatch_Intersection::NbLines ( ) const

Returns the number of intersection lines.

◆ NbPnts()

Standard_Integer IntPatch_Intersection::NbPnts ( ) const

Returns the number of "single" points.

◆ OppositeFaces()

Standard_Boolean IntPatch_Intersection::OppositeFaces ( ) const

Returns True when the TangentFaces returns True and the normal vectors evaluated at a point on the first and the second surface are opposite. The exception DomainError is raised if TangentFaces returns False.

◆ Perform() [1/4]

void IntPatch_Intersection::Perform	(	const Handle< Adaptor3d_Surface > &	S1,
		const Handle< Adaptor3d_TopolTool > &	D1,
		const Handle< Adaptor3d_Surface > &	S2,
		const Handle< Adaptor3d_TopolTool > &	D2,
		const Standard_Real	TolArc,
		const Standard_Real	TolTang,
		const Standard_Boolean	isGeomInt = `Standard_True`,
		const Standard_Boolean	theIsReqToKeepRLine = `Standard_False`,
		const Standard_Boolean	theIsReqToPostWLProc = `Standard_True`
	)

Flag theIsReqToKeepRLine has been entered only for compatibility with TopOpeBRep package. It shall be deleted after deleting TopOpeBRep. When intersection result returns IntPatch_RLine and another IntPatch_Line (not restriction) we (in case of theIsReqToKeepRLine==TRUE) will always keep both lines even if they are coincided. Flag theIsReqToPostWLProc has been entered only for compatibility with TopOpeBRep package. It shall be deleted after deleting TopOpeBRep. If theIsReqToPostWLProc == FALSE, then we will work with Walking-line obtained after intersection algorithm directly (without any post-processing).

◆ Perform() [2/4]

void IntPatch_Intersection::Perform	(	const Handle< Adaptor3d_Surface > &	S1,
		const Handle< Adaptor3d_TopolTool > &	D1,
		const Handle< Adaptor3d_Surface > &	S2,
		const Handle< Adaptor3d_TopolTool > &	D2,
		const Standard_Real	TolArc,
		const Standard_Real	TolTang,
		IntSurf_ListOfPntOn2S &	LOfPnts,
		const Standard_Boolean	isGeomInt = `Standard_True`,
		const Standard_Boolean	theIsReqToKeepRLine = `Standard_False`,
		const Standard_Boolean	theIsReqToPostWLProc = `Standard_True`
	)

If isGeomInt == Standard_False, then method Param-Param intersection will be used. Flag theIsReqToKeepRLine has been entered only for compatibility with TopOpeBRep package. It shall be deleted after deleting TopOpeBRep. When intersection result returns IntPatch_RLine and another IntPatch_Line (not restriction) we (in case of theIsReqToKeepRLine==TRUE) will always keep both lines even if they are coincided. Flag theIsReqToPostWLProc has been entered only for compatibility with TopOpeBRep package. It shall be deleted after deleting TopOpeBRep. If theIsReqToPostWLProc == FALSE, then we will work with Walking-line obtained after intersection algorithm directly (without any post-processing).

◆ Perform() [3/4]

void IntPatch_Intersection::Perform	(	const Handle< Adaptor3d_Surface > &	S1,
		const Handle< Adaptor3d_TopolTool > &	D1,
		const Handle< Adaptor3d_Surface > &	S2,
		const Handle< Adaptor3d_TopolTool > &	D2,
		const Standard_Real	U1,
		const Standard_Real	V1,
		const Standard_Real	U2,
		const Standard_Real	V2,
		const Standard_Real	TolArc,
		const Standard_Real	TolTang
	)

Perform with start point.

◆ Perform() [4/4]

void IntPatch_Intersection::Perform	(	const Handle< Adaptor3d_Surface > &	S1,
		const Handle< Adaptor3d_TopolTool > &	D1,
		const Standard_Real	TolArc,
		const Standard_Real	TolTang
	)

Uses for finding self-intersected surfaces.

◆ Point()

const IntPatch_Point & IntPatch_Intersection::Point ( const Standard_Integer Index ) const

Returns the point of range Index. An exception is raised if Index<=0 or Index>NbPnt.

◆ PrepareSurfaces()

static void IntPatch_Intersection::PrepareSurfaces	(	const Handle< Adaptor3d_Surface > &	theS1,
		const Handle< Adaptor3d_TopolTool > &	theD1,
		const Handle< Adaptor3d_Surface > &	theS2,
		const Handle< Adaptor3d_TopolTool > &	theD2,
		const Standard_Real	Tol,
		NCollection_Vector< Handle< Adaptor3d_Surface > > &	theSeqHS1,
		NCollection_Vector< Handle< Adaptor3d_Surface > > &	theSeqHS2
	)

static

Prepares surfaces for intersection.

◆ SequenceOfLine()

const IntPatch_SequenceOfLine & IntPatch_Intersection::SequenceOfLine ( ) const

◆ SetTolerances()

void IntPatch_Intersection::SetTolerances	(	const Standard_Real	TolArc,
		const Standard_Real	TolTang,
		const Standard_Real	UVMaxStep,
		const Standard_Real	Fleche
	)

Set the tolerances used by the algorithms: — Implicit - Parametric — Parametric - Parametric — Implicit - Implicit.

TolArc is used to compute the intersections between the restrictions of a surface and a walking line.

TolTang is used to compute the points on a walking line, and in geometric algorithms.

Fleche is a parameter used in the walking algorithms to provide small curvatures on a line.

UVMaxStep is a parameter used in the walking algorithms to compute the distance between to points in their respective parametric spaces.

◆ TangentFaces()

Standard_Boolean IntPatch_Intersection::TangentFaces ( ) const

Returns True if the two patches are considered as entirely tangent, i-e every restriction arc of one patch is inside the geometric base of the other patch.

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

IntPatch_Intersection.hxx

Public Member Functions

Static Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ IntPatch_Intersection() [1/3]

◆ IntPatch_Intersection() [2/3]

◆ IntPatch_Intersection() [3/3]

Member Function Documentation

◆ CheckSingularPoints()

◆ DefineUVMaxStep()

◆ Dump()

◆ IsDone()

◆ IsEmpty()

◆ Line()

◆ NbLines()

◆ NbPnts()

◆ OppositeFaces()

◆ Perform() [1/4]

◆ Perform() [2/4]

◆ Perform() [3/4]

◆ Perform() [4/4]

◆ Point()

◆ PrepareSurfaces()

◆ SequenceOfLine()

◆ SetTolerances()

◆ TangentFaces()