Extrema_ExtCC Class Reference

It calculates all the distance between two curves. These distances can be maximum or minimum. More...

#include <Extrema_ExtCC.hxx>

Public Member Functions
	Extrema_ExtCC (const Standard_Real TolC1=1.0e-10, const Standard_Real TolC2=1.0e-10)
	Extrema_ExtCC (const Adaptor3d_Curve &C1, const Adaptor3d_Curve &C2, const Standard_Real TolC1=1.0e-10, const Standard_Real TolC2=1.0e-10)
	It calculates all the distances.
	Extrema_ExtCC (const Adaptor3d_Curve &C1, const Adaptor3d_Curve &C2, const Standard_Real U1, const Standard_Real U2, const Standard_Real V1, const Standard_Real V2, const Standard_Real TolC1=1.0e-10, const Standard_Real TolC2=1.0e-10)
	It calculates all the distances.
void	Initialize (const Adaptor3d_Curve &C1, const Adaptor3d_Curve &C2, const Standard_Real TolC1=1.0e-10, const Standard_Real TolC2=1.0e-10)
	Initializes but does not perform algorithm.
void	Initialize (const Adaptor3d_Curve &C1, const Adaptor3d_Curve &C2, const Standard_Real U1, const Standard_Real U2, const Standard_Real V1, const Standard_Real V2, const Standard_Real TolC1=1.0e-10, const Standard_Real TolC2=1.0e-10)
	Initializes but does not perform algorithm.
void	SetCurve (const Standard_Integer theRank, const Adaptor3d_Curve &C)
void	SetCurve (const Standard_Integer theRank, const Adaptor3d_Curve &C, const Standard_Real Uinf, const Standard_Real Usup)
void	SetRange (const Standard_Integer theRank, const Standard_Real Uinf, const Standard_Real Usup)
void	SetTolerance (const Standard_Integer theRank, const Standard_Real Tol)
void	Perform ()
Standard_Boolean	IsDone () const
	Returns True if the distances are found.
Standard_Integer	NbExt () const
	Returns the number of extremum distances.
Standard_Boolean	IsParallel () const
	Returns True if the two curves are parallel.
Standard_Real	SquareDistance (const Standard_Integer N=1) const
	Returns the value of the Nth extremum square distance.
void	Points (const Standard_Integer N, Extrema_POnCurv &P1, Extrema_POnCurv &P2) const
	Returns the points of the Nth extremum distance. P1 is on the first curve, P2 on the second one.
void	TrimmedSquareDistances (Standard_Real &dist11, Standard_Real &distP12, Standard_Real &distP21, Standard_Real &distP22, gp_Pnt &P11, gp_Pnt &P12, gp_Pnt &P21, gp_Pnt &P22) const
	if the curve is a trimmed curve, dist11 is a square distance between the point on C1 of parameter FirstParameter and the point of parameter FirstParameter on C2.
void	SetSingleSolutionFlag (const Standard_Boolean theSingleSolutionFlag)
	Set flag for single extrema computation. Works on parametric solver only.
Standard_Boolean	GetSingleSolutionFlag () const
	Get flag for single extrema computation. Works on parametric solver only.

Protected Member Functions
void	PrepareResults (const Extrema_ExtElC &AlgExt, const Standard_Boolean theIsInverse, const Standard_Real Ut11, const Standard_Real Ut12, const Standard_Real Ut21, const Standard_Real Ut22)
	Prepares the extrema result(s) for analytical cases (line, circle, ellipsis etc.)
void	PrepareResults (const Extrema_ECC &AlgExt, const Standard_Real Ut11, const Standard_Real Ut12, const Standard_Real Ut21, const Standard_Real Ut22)
	Prepares the extrema result(s) for general cases (e.g. with B-spline curves).
void	PrepareParallelResult (const Standard_Real theUt11, const Standard_Real theUt12, const Standard_Real theUt21, const Standard_Real theUt22, const Standard_Real theSqDist)
	Prepares the extrema result(s) in case when the given curves are parallel.
void	ClearSolutions ()

Detailed Description

It calculates all the distance between two curves. These distances can be maximum or minimum.

Constructor & Destructor Documentation

Extrema_ExtCC() [1/3]

Extrema_ExtCC::Extrema_ExtCC	(	const Standard_Real	TolC1 = 1.0e-10,
		const Standard_Real	TolC2 = 1.0e-10
	)

Extrema_ExtCC() [2/3]

Extrema_ExtCC::Extrema_ExtCC	(	const Adaptor3d_Curve &	C1,
		const Adaptor3d_Curve &	C2,
		const Standard_Real	TolC1 = 1.0e-10,
		const Standard_Real	TolC2 = 1.0e-10
	)

It calculates all the distances.

Extrema_ExtCC() [3/3]

Extrema_ExtCC::Extrema_ExtCC	(	const Adaptor3d_Curve &	C1,
		const Adaptor3d_Curve &	C2,
		const Standard_Real	U1,
		const Standard_Real	U2,
		const Standard_Real	V1,
		const Standard_Real	V2,
		const Standard_Real	TolC1 = 1.0e-10,
		const Standard_Real	TolC2 = 1.0e-10
	)

It calculates all the distances.

Member Function Documentation

ClearSolutions()

void Extrema_ExtCC::ClearSolutions ( )

inlineprotected

GetSingleSolutionFlag()

Standard_Boolean Extrema_ExtCC::GetSingleSolutionFlag

(

)

const

Get flag for single extrema computation. Works on parametric solver only.

Initialize() [1/2]

void Extrema_ExtCC::Initialize	(	const Adaptor3d_Curve &	C1,
		const Adaptor3d_Curve &	C2,
		const Standard_Real	TolC1 = 1.0e-10,
		const Standard_Real	TolC2 = 1.0e-10
	)

Initializes but does not perform algorithm.

Initialize() [2/2]

void Extrema_ExtCC::Initialize	(	const Adaptor3d_Curve &	C1,
		const Adaptor3d_Curve &	C2,
		const Standard_Real	U1,
		const Standard_Real	U2,
		const Standard_Real	V1,
		const Standard_Real	V2,
		const Standard_Real	TolC1 = 1.0e-10,
		const Standard_Real	TolC2 = 1.0e-10
	)

Initializes but does not perform algorithm.

IsDone()

Standard_Boolean Extrema_ExtCC::IsDone

(

)

const

Returns True if the distances are found.

IsParallel()

Standard_Boolean Extrema_ExtCC::IsParallel

(

)

const

Returns True if the two curves are parallel.

NbExt()

Standard_Integer Extrema_ExtCC::NbExt

(

)

const

Returns the number of extremum distances.

Perform()

void Extrema_ExtCC::Perform

(

)

Points()

void Extrema_ExtCC::Points	(	const Standard_Integer	N,
		Extrema_POnCurv &	P1,
		Extrema_POnCurv &	P2
	)		const

Returns the points of the Nth extremum distance. P1 is on the first curve, P2 on the second one.

PrepareParallelResult()

void Extrema_ExtCC::PrepareParallelResult ( const Standard_Real  theUt11, const Standard_Real  theUt12, const Standard_Real  theUt21, const Standard_Real  theUt22, const Standard_Real  theSqDist  )

protected

Prepares the extrema result(s) in case when the given curves are parallel.

PrepareResults() [1/2]

void Extrema_ExtCC::PrepareResults ( const Extrema_ECC &  AlgExt, const Standard_Real  Ut11, const Standard_Real  Ut12, const Standard_Real  Ut21, const Standard_Real  Ut22  )

protected

Prepares the extrema result(s) for general cases (e.g. with B-spline curves).

PrepareResults() [2/2]

void Extrema_ExtCC::PrepareResults ( const Extrema_ExtElC &  AlgExt, const Standard_Boolean  theIsInverse, const Standard_Real  Ut11, const Standard_Real  Ut12, const Standard_Real  Ut21, const Standard_Real  Ut22  )

protected

Prepares the extrema result(s) for analytical cases (line, circle, ellipsis etc.)

SetCurve() [1/2]

void Extrema_ExtCC::SetCurve	(	const Standard_Integer	theRank,
		const Adaptor3d_Curve &	C
	)

SetCurve() [2/2]

void Extrema_ExtCC::SetCurve	(	const Standard_Integer	theRank,
		const Adaptor3d_Curve &	C,
		const Standard_Real	Uinf,
		const Standard_Real	Usup
	)

SetRange()

void Extrema_ExtCC::SetRange	(	const Standard_Integer	theRank,
		const Standard_Real	Uinf,
		const Standard_Real	Usup
	)

SetSingleSolutionFlag()

void Extrema_ExtCC::SetSingleSolutionFlag

(

const Standard_Boolean

theSingleSolutionFlag

)

Set flag for single extrema computation. Works on parametric solver only.

SetTolerance()

void Extrema_ExtCC::SetTolerance	(	const Standard_Integer	theRank,
		const Standard_Real	Tol
	)

SquareDistance()

Standard_Real Extrema_ExtCC::SquareDistance

(

const Standard_Integer

N = 1

)

const

Returns the value of the Nth extremum square distance.

TrimmedSquareDistances()

void Extrema_ExtCC::TrimmedSquareDistances	(	Standard_Real &	dist11,
		Standard_Real &	distP12,
		Standard_Real &	distP21,
		Standard_Real &	distP22,
		gp_Pnt &	P11,
		gp_Pnt &	P12,
		gp_Pnt &	P21,
		gp_Pnt &	P22
	)		const

if the curve is a trimmed curve, dist11 is a square distance between the point on C1 of parameter FirstParameter and the point of parameter FirstParameter on C2.

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

• Extrema_ExtCC.hxx