OCC.Approx module¶

class Approx_Array1OfAdHSurface(*args)¶

Bases: object

Parameters:	Low (int) – Up (int) – Item (Handle_Adaptor3d_HSurface &) – Low – Up –
Return type:	None
Return type:	None

Assign()¶

Parameters:	Other (Approx_Array1OfAdHSurface &) –
Return type:	Approx_Array1OfAdHSurface

ChangeValue()¶

Parameters:	Index (int) –
Return type:	Handle_Adaptor3d_HSurface

Destroy()¶

Return type:	None

Init()¶

Parameters:	V (Handle_Adaptor3d_HSurface &) –
Return type:	None

IsAllocated()¶

Return type:	bool

Length()¶

Return type:	int

Lower()¶

Return type:	int

Set()¶

Parameters:	Other (Approx_Array1OfAdHSurface &) –
Return type:	Approx_Array1OfAdHSurface

SetValue()¶

Parameters:	Index (int) – Value (Handle_Adaptor3d_HSurface &) –
Return type:	None

Upper()¶

Return type:	int

Value()¶

Parameters:	Index (int) –
Return type:	Handle_Adaptor3d_HSurface

thisown¶: The membership flag

class Approx_Array1OfGTrsf2d(*args)¶

Bases: object

Parameters:	Low (int) – Up (int) – Item (gp_GTrsf2d) – Low – Up –
Return type:	None
Return type:	None

Assign()¶

Parameters:	Other (Approx_Array1OfGTrsf2d &) –
Return type:	Approx_Array1OfGTrsf2d

ChangeValue()¶

Parameters:	Index (int) –
Return type:	gp_GTrsf2d

Destroy()¶

Return type:	None

Init()¶

Parameters:	V (gp_GTrsf2d) –
Return type:	None

IsAllocated()¶

Return type:	bool

Length()¶

Return type:	int

Lower()¶

Return type:	int

Set()¶

Parameters:	Other (Approx_Array1OfGTrsf2d &) –
Return type:	Approx_Array1OfGTrsf2d

SetValue()¶

Parameters:	Index (int) – Value (gp_GTrsf2d) –
Return type:	None

Upper()¶

Return type:	int

Value()¶

Parameters:	Index (int) –
Return type:	gp_GTrsf2d

thisown¶: The membership flag

class Approx_Curve2d(*args)¶

Bases: object

Parameters:	C2D (Handle_Adaptor2d_HCurve2d &) – First (float) – Last (float) – TolU (float) – TolV (float) – Continuity (GeomAbs_Shape) – MaxDegree (int) – MaxSegments (int) –
Return type:	None

Curve()¶

Return type:	Handle_Geom2d_BSplineCurve

HasResult()¶

Return type:	bool

IsDone()¶

Return type:	bool

MaxError2dU()¶

Return type:	float

MaxError2dV()¶

Return type:	float

thisown¶: The membership flag

class Approx_Curve3d(*args)¶

Bases: object

Approximation of a curve with respect of the requiered tolerance Tol3D.

Parameters:	Curve (Handle_Adaptor3d_HCurve &) – Tol3d (float) – Order (GeomAbs_Shape) – MaxSegments (int) – MaxDegree (int) –
Return type:	None

Curve()¶

Return type:	Handle_Geom_BSplineCurve

DumpToString()¶: Approx_Curve3d_DumpToString(Approx_Curve3d self) -> std::string

HasResult()¶

returns Standard_True if the approximation did come out with a result that is not NECESSARELY within the required tolerance

Return type:	bool

IsDone()¶

returns Standard_True if the approximation has been done within requiered tolerance

Return type:	bool

MaxError()¶

returns the Maximum Error (>0 when an approximation has been done, 0 if no approximation)

Return type:	float

thisown¶: The membership flag

class Approx_CurveOnSurface(*args)¶

Bases: object

Parameters:	C2D (Handle_Adaptor2d_HCurve2d &) – Surf (Handle_Adaptor3d_HSurface &) – First (float) – Last (float) – Tol (float) – Continuity (GeomAbs_Shape) – MaxDegree (int) – MaxSegments (int) – Only3d (bool) – default value is Standard_False Only2d (bool) – default value is Standard_False
Return type:	None

Curve2d()¶

Return type:	Handle_Geom2d_BSplineCurve

Curve3d()¶

Return type:	Handle_Geom_BSplineCurve

HasResult()¶

Return type:	bool

IsDone()¶

Return type:	bool

MaxError2dU()¶

Return type:	float

MaxError2dV()¶

returns the maximum errors relativly to the U component or the V component of the 2d Curve

Return type:	float

MaxError3d()¶

Return type:	float

thisown¶: The membership flag

class Approx_CurvilinearParameter(*args)¶

Bases: object

case of a free 3D curve

Parameters:	C3D (Handle_Adaptor3d_HCurve &) – Tol (float) – Order (GeomAbs_Shape) – MaxDegree (int) – MaxSegments (int) –
Return type:	None

case of a curve on one surface

Parameters:	C2D (Handle_Adaptor2d_HCurve2d &) – Surf (Handle_Adaptor3d_HSurface &) – Tol (float) – Order (GeomAbs_Shape) – MaxDegree (int) – MaxSegments (int) –
Return type:	None

case of a curve on two surfaces

Parameters:	C2D1 (Handle_Adaptor2d_HCurve2d &) – Surf1 (Handle_Adaptor3d_HSurface &) – C2D2 (Handle_Adaptor2d_HCurve2d &) – Surf2 (Handle_Adaptor3d_HSurface &) – Tol (float) – Order (GeomAbs_Shape) – MaxDegree (int) – MaxSegments (int) –
Return type:	None

Curve2d1()¶

returns the BsplineCurve representing the reparametrized 2D curve on the first surface (case of a curve on one or two surfaces)

Return type:	Handle_Geom2d_BSplineCurve

Curve2d2()¶

returns the BsplineCurve representing the reparametrized 2D curve on the second surface (case of a curve on two surfaces)

Return type:	Handle_Geom2d_BSplineCurve

Curve3d()¶

returns the Bspline curve corresponding to the reparametrized 3D curve

Return type:	Handle_Geom_BSplineCurve

DumpToString()¶: Approx_CurvilinearParameter_DumpToString(Approx_CurvilinearParameter self) -> std::string

HasResult()¶

Return type:	bool

IsDone()¶

Return type:	bool

MaxError2d1()¶

returns the maximum error on the first reparametrized 2D curve

Return type:	float

MaxError2d2()¶

returns the maximum error on the second reparametrized 2D curve

Return type:	float

MaxError3d()¶

returns the maximum error on the reparametrized 3D curve

Return type:	float

thisown¶: The membership flag

class Approx_CurvlinFunc(*args)¶

Bases: OCC.MMgt.MMgt_TShared

Parameters:	C (Handle_Adaptor3d_HCurve &) – Tol (float) – C2D (Handle_Adaptor2d_HCurve2d &) – S (Handle_Adaptor3d_HSurface &) – Tol – C2D1 (Handle_Adaptor2d_HCurve2d &) – C2D2 (Handle_Adaptor2d_HCurve2d &) – S1 (Handle_Adaptor3d_HSurface &) – S2 (Handle_Adaptor3d_HSurface &) – Tol –
Return type:	None
Return type:	None
Return type:	None

EvalCase1()¶

if myCase != 1

Parameters:	S (float) – Order (int) – Result (TColStd_Array1OfReal &) –
Return type:	bool

EvalCase2()¶

if myCase != 2

Parameters:	S (float) – Order (int) – Result (TColStd_Array1OfReal &) –
Return type:	bool

EvalCase3()¶

if myCase != 3

Parameters:	S (float) – Order (int) – Result (TColStd_Array1OfReal &) –
Return type:	bool

FirstParameter()¶

Return type:	float

GetHandle()¶

GetLength()¶

Return type:	float

GetSParameter()¶

returns original parameter correponding S.

Parameters:	U (float) –
Return type:	float

GetUParameter()¶

returns original parameter correponding S. if Case == 1 computation is performed on myC2D1 and mySurf1, otherwise it is done on myC2D2 and mySurf2.

Parameters:	C (Adaptor3d_Curve &) – S (float) – NumberOfCurve (int) –
Return type:	float

Intervals()¶

Stores in <T> the parameters bounding the intervals of continuity <S>. //! The array must provide enough room to accomodate for the parameters. i.e. T.Length() > NbIntervals()

Parameters:	T (TColStd_Array1OfReal &) – S (GeomAbs_Shape) –
Return type:	None

LastParameter()¶

Return type:	float

Length()¶

Computes length of the curve.

Return type:	None

Computes length of the curve segment.

Parameters:	C (Adaptor3d_Curve &) – FirstU (float) – LasrU (float) –
Return type:	float

NbIntervals()¶

Returns the number of intervals for continuity <S>. May be one if Continuity(me) >= <S>

Parameters:	S (GeomAbs_Shape) –
Return type:	int

SetTol()¶

—Purpose Update the tolerance to used

Parameters:	Tol (float) –
Return type:	None

Trim()¶

if First < 0 or Last > 1

Parameters:	First (float) – Last (float) – Tol (float) –
Return type:	None

thisown¶: The membership flag

class Approx_FitAndDivide(*args)¶

Bases: object

Parameters:	Line (AppCont_Function &) – degreemin (int) – default value is 3 degreemax (int) – default value is 8 Tolerance3d (float) – default value is 1.0e-5 Tolerance2d (float) – default value is 1.0e-5 cutting (bool) – default value is Standard_False FirstC (AppParCurves_Constraint) – default value is AppParCurves_TangencyPoint LastC (AppParCurves_Constraint) – default value is AppParCurves_TangencyPoint degreemin – default value is 3 degreemax – default value is 8 Tolerance3d – default value is 1.0e-05 Tolerance2d – default value is 1.0e-05 cutting – default value is Standard_False FirstC – default value is AppParCurves_TangencyPoint LastC – default value is AppParCurves_TangencyPoint
Return type:	None
Return type:	None

Error()¶

Parameters:	Index (int) – tol3d (float &) – tol2d (float &) –
Return type:	None

IsAllApproximated()¶

Return type:	bool

IsToleranceReached()¶

Return type:	bool

NbMultiCurves()¶

Return type:	int

Parameters()¶

Parameters:	Index (int) – firstp (float &) – lastp (float &) –
Return type:	None

Perform()¶

Parameters:	Line (AppCont_Function &) –
Return type:	None

SetConstraints()¶

Parameters:	FirstC (AppParCurves_Constraint) – LastC (AppParCurves_Constraint) –
Return type:	None

SetDegrees()¶

Parameters:	degreemin (int) – degreemax (int) –
Return type:	None

SetTolerances()¶

Parameters:	Tolerance3d (float) – Tolerance2d (float) –
Return type:	None

Value()¶

Parameters:	Index (int) – default value is 1
Return type:	AppParCurves_MultiCurve

thisown¶: The membership flag

class Approx_FitAndDivide2d(*args)¶

Bases: object

Parameters:	Line (AppCont_Function2d &) – degreemin (int) – default value is 3 degreemax (int) – default value is 8 Tolerance3d (float) – default value is 1.0e-5 Tolerance2d (float) – default value is 1.0e-5 cutting (bool) – default value is Standard_False FirstC (AppParCurves_Constraint) – default value is AppParCurves_TangencyPoint LastC (AppParCurves_Constraint) – default value is AppParCurves_TangencyPoint degreemin – default value is 3 degreemax – default value is 8 Tolerance3d – default value is 1.0e-05 Tolerance2d – default value is 1.0e-05 cutting – default value is Standard_False FirstC – default value is AppParCurves_TangencyPoint LastC – default value is AppParCurves_TangencyPoint
Return type:	None
Return type:	None

Error()¶

Parameters:	Index (int) – tol3d (float &) – tol2d (float &) –
Return type:	None

IsAllApproximated()¶

Return type:	bool

IsToleranceReached()¶

Return type:	bool

NbMultiCurves()¶

Return type:	int

Parameters()¶

Parameters:	Index (int) – firstp (float &) – lastp (float &) –
Return type:	None

Perform()¶

Parameters:	Line (AppCont_Function2d &) –
Return type:	None

SetConstraints()¶

Parameters:	FirstC (AppParCurves_Constraint) – LastC (AppParCurves_Constraint) –
Return type:	None

SetDegrees()¶

Parameters:	degreemin (int) – degreemax (int) –
Return type:	None

SetTolerances()¶

Parameters:	Tolerance3d (float) – Tolerance2d (float) –
Return type:	None

Value()¶

Parameters:	Index (int) – default value is 1
Return type:	AppParCurves_MultiCurve

thisown¶: The membership flag

class Approx_HArray1OfAdHSurface(*args)¶

Bases: OCC.MMgt.MMgt_TShared

Parameters:	Low (int) – Up (int) – Low – Up – V (Handle_Adaptor3d_HSurface &) –
Return type:	None
Return type:	None

Array1()¶

Return type:	Approx_Array1OfAdHSurface

ChangeArray1()¶

Return type:	Approx_Array1OfAdHSurface

ChangeValue()¶

Parameters:	Index (int) –
Return type:	Handle_Adaptor3d_HSurface

GetHandle()¶

Init()¶

Parameters:	V (Handle_Adaptor3d_HSurface &) –
Return type:	None

Length()¶

Return type:	int

Lower()¶

Return type:	int

SetValue()¶

Parameters:	Index (int) – Value (Handle_Adaptor3d_HSurface &) –
Return type:	None

Upper()¶

Return type:	int

Value()¶

Parameters:	Index (int) –
Return type:	Handle_Adaptor3d_HSurface

thisown¶: The membership flag

class Approx_HArray1OfGTrsf2d(*args)¶

Bases: OCC.MMgt.MMgt_TShared

Parameters:	Low (int) – Up (int) – Low – Up – V (gp_GTrsf2d) –
Return type:	None
Return type:	None

Array1()¶

Return type:	Approx_Array1OfGTrsf2d

ChangeArray1()¶

Return type:	Approx_Array1OfGTrsf2d

ChangeValue()¶

Parameters:	Index (int) –
Return type:	gp_GTrsf2d

GetHandle()¶

Init()¶

Parameters:	V (gp_GTrsf2d) –
Return type:	None

Length()¶

Return type:	int

Lower()¶

Return type:	int

SetValue()¶

Parameters:	Index (int) – Value (gp_GTrsf2d) –
Return type:	None

Upper()¶

Return type:	int

Value()¶

Parameters:	Index (int) –
Return type:	gp_GTrsf2d

thisown¶: The membership flag

class Approx_MCurvesToBSpCurve(*args)¶

Bases: object

Return type:	None

Append()¶

Parameters:	MC (AppParCurves_MultiCurve &) –
Return type:	None

ChangeValue()¶

return the composite MultiCurves as a MultiBSpCurve.

Return type:	AppParCurves_MultiBSpCurve

Perform()¶

Return type:	None
Parameters:	TheSeq (AppParCurves_SequenceOfMultiCurve &) –
Return type:	None

Reset()¶

Return type:	None

Value()¶

return the composite MultiCurves as a MultiBSpCurve.

Return type:	AppParCurves_MultiBSpCurve

thisown¶: The membership flag

class Approx_MyLeastSquareOfFitAndDivide(*args)¶

Bases: object

Parameters:	SSP (AppCont_Function &) – U0 (float) – U1 (float) – FirstCons (AppParCurves_Constraint) – LastCons (AppParCurves_Constraint) – Deg (int) – NbPoints (int) – default value is 24
Return type:	None

Error()¶

Parameters:	F (float &) – MaxE3d (float &) – MaxE2d (float &) –
Return type:	None

IsDone()¶

Return type:	bool

Value()¶

Return type:	AppParCurves_MultiCurve

thisown¶: The membership flag

class Approx_MyLeastSquareOfFitAndDivide2d(*args)¶

Bases: object

Parameters:	SSP (AppCont_Function2d &) – U0 (float) – U1 (float) – FirstCons (AppParCurves_Constraint) – LastCons (AppParCurves_Constraint) – Deg (int) – NbPoints (int) – default value is 24
Return type:	None

Error()¶

Parameters:	F (float &) – MaxE3d (float &) – MaxE2d (float &) –
Return type:	None

IsDone()¶

Return type:	bool

Value()¶

Return type:	AppParCurves_MultiCurve

thisown¶: The membership flag

class Approx_SameParameter(*args)¶

Bases: object

Warning: the C3D and C2D must have the same parametric domain.

Parameters:	C3D (Handle_Adaptor3d_HCurve &) – C2D (Handle_Geom2d_Curve &) – S (Handle_Adaptor3d_HSurface &) – Tol (float) – C3D – C2D – S – Tol –
Return type:	None
Return type:	None

Warning: the C3D and C2D must have the same parametric domain.

Parameters:	C3D (Handle_Adaptor3d_HCurve &) – C2D (Handle_Adaptor2d_HCurve2d &) – S (Handle_Adaptor3d_HSurface &) – Tol (float) –
Return type:	None

Curve2d()¶

Returns the 2D curve that has the same parameter as the 3D curve once evaluated on the surface up to the specified tolerance

Return type:	Handle_Geom2d_BSplineCurve

IsDone()¶

Return type:	bool

IsSameParameter()¶

Tells whether the original data had already the same parameter up to the tolerance : in that case nothing is done.

Return type:	bool

TolReached()¶

Return type:	float

thisown¶: The membership flag

class Approx_SequenceNodeOfSequenceOfHArray1OfReal(*args)¶

Bases: OCC.TCollection.TCollection_SeqNode

Parameters:	I (Handle_TColStd_HArray1OfReal &) – n (TCollection_SeqNodePtr &) – p (TCollection_SeqNodePtr &) –
Return type:	None

GetHandle()¶

Value()¶

Return type:	Handle_TColStd_HArray1OfReal

thisown¶: The membership flag

class Approx_SequenceOfHArray1OfReal(*args)¶

Bases: OCC.TCollection.TCollection_BaseSequence

Return type:	None
Parameters:	Other (Approx_SequenceOfHArray1OfReal &) –
Return type:	None

Append()¶

Parameters:	T (Handle_TColStd_HArray1OfReal &) – S (Approx_SequenceOfHArray1OfReal &) –
Return type:	None
Return type:	None

Assign()¶

Parameters:	Other (Approx_SequenceOfHArray1OfReal &) –
Return type:	Approx_SequenceOfHArray1OfReal

ChangeValue()¶

Parameters:	Index (int) –
Return type:	Handle_TColStd_HArray1OfReal

Clear()¶

Return type:	None

First()¶

Return type:	Handle_TColStd_HArray1OfReal

InsertAfter()¶

Parameters:	Index (int) – T (Handle_TColStd_HArray1OfReal &) – Index – S (Approx_SequenceOfHArray1OfReal &) –
Return type:	None
Return type:	None

InsertBefore()¶

Parameters:	Index (int) – T (Handle_TColStd_HArray1OfReal &) – Index – S (Approx_SequenceOfHArray1OfReal &) –
Return type:	None
Return type:	None

Last()¶

Return type:	Handle_TColStd_HArray1OfReal

Prepend()¶

Parameters:	T (Handle_TColStd_HArray1OfReal &) – S (Approx_SequenceOfHArray1OfReal &) –
Return type:	None
Return type:	None

Remove()¶

Parameters:	Index (int) – FromIndex (int) – ToIndex (int) –
Return type:	None
Return type:	None

Set()¶

Parameters:	Other (Approx_SequenceOfHArray1OfReal &) –
Return type:	Approx_SequenceOfHArray1OfReal

SetValue()¶

Parameters:	Index (int) – I (Handle_TColStd_HArray1OfReal &) –
Return type:	None

Split()¶

Parameters:	Index (int) – Sub (Approx_SequenceOfHArray1OfReal &) –
Return type:	None

Value()¶

Parameters:	Index (int) –
Return type:	Handle_TColStd_HArray1OfReal

thisown¶: The membership flag

class Approx_SweepApproximation(*args)¶

Bases: object

Parameters:	Func (Handle_Approx_SweepFunction &) –
Return type:	None

Average2dError()¶

returns the average error of the <Index> 2d curve approximation.

Parameters:	Index (int) –
Return type:	float

AverageErrorOnSurf()¶

returns the average error in the suface approximation.

Return type:	float

Curve2d()¶

Parameters:	Index (int) – TPoles (TColgp_Array1OfPnt2d) – TKnots (TColStd_Array1OfReal &) – TMults (TColStd_Array1OfInteger &) –
Return type:	None

Curve2dPoles()¶

Parameters:	Index (int) –
Return type:	TColgp_Array1OfPnt2d

Curves2dDegree()¶

Return type:	int

Curves2dKnots()¶

Return type:	TColStd_Array1OfReal

Curves2dMults()¶

Return type:	TColStd_Array1OfInteger

Curves2dShape()¶

Parameters:	Degree (int &) – NbPoles (int &) – NbKnots (int &) –
Return type:	None

DumpToString()¶: Approx_SweepApproximation_DumpToString(Approx_SweepApproximation self) -> std::string

Eval()¶

The EvaluatorFunction from AdvApprox;

Parameters:	Parameter (float) – DerivativeRequest (int) – First (float) – Last (float) – Result (float &) –
Return type:	int

IsDone()¶

returns if we have an result

Return type:	bool

Max2dError()¶

returns the maximum error of the <Index> 2d curve approximation.

Parameters:	Index (int) –
Return type:	float

MaxErrorOnSurf()¶

returns the maximum error in the suface approximation.

Return type:	float

NbCurves2d()¶

Return type:	int

Perform()¶

Perform the Approximation [First, Last] : Approx_SweepApproximation.cdl Tol3d : Tolerance to surface approximation Tol2d : Tolerance used to perform curve approximation Normaly the 2d curve are approximated with a tolerance given by the resolution on support surfaces, but if this tolerance is too large Tol2d is used. TolAngular : Tolerance (in radian) to control the angle beetween tangents on the section law and tangent of iso-v on approximed surface Continuity : The continuity in v waiting on the surface Degmax : The maximum degree in v requiered on the surface Segmax : The maximum number of span in v requiered on the surface Warning : The continuity ci can be obtained only if Ft is Ci

Parameters:	First (float) – Last (float) – Tol3d (float) – BoundTol (float) – Tol2d (float) – TolAngular (float) – Continuity (GeomAbs_Shape) – default value is GeomAbs_C0 Degmax (int) – default value is 11 Segmax (int) – default value is 50
Return type:	None

SurfPoles()¶

Return type:	TColgp_Array2OfPnt

SurfShape()¶

Parameters:	UDegree (int &) – VDegree (int &) – NbUPoles (int &) – NbVPoles (int &) – NbUKnots (int &) – NbVKnots (int &) –
Return type:	None

SurfUKnots()¶

Return type:	TColStd_Array1OfReal

SurfUMults()¶

Return type:	TColStd_Array1OfInteger

SurfVKnots()¶

Return type:	TColStd_Array1OfReal

SurfVMults()¶

Return type:	TColStd_Array1OfInteger

SurfWeights()¶

Return type:	TColStd_Array2OfReal

Surface()¶

Parameters:	TPoles (TColgp_Array2OfPnt) – TWeights (TColStd_Array2OfReal &) – TUKnots (TColStd_Array1OfReal &) – TVKnots (TColStd_Array1OfReal &) – TUMults (TColStd_Array1OfInteger &) – TVMults (TColStd_Array1OfInteger &) –
Return type:	None

TolCurveOnSurf()¶

returns the maximum 3d error of the <Index> 2d curve approximation on the Surface.

Parameters:	Index (int) –
Return type:	float

UDegree()¶

Return type:	int

VDegree()¶

Return type:	int

thisown¶: The membership flag

class Approx_SweepFunction(*args, **kwargs)¶

Bases: OCC.MMgt.MMgt_TShared

BarycentreOfSurf()¶

Get the barycentre of Surface. An very poor estimation is sufficent. This information is usefull to perform well conditioned rational approximation. Warning: Used only if <self> IsRational

Return type:	gp_Pnt

D0()¶

compute the section for v = param

Parameters:	Param (float) – First (float) – Last (float) – Poles (TColgp_Array1OfPnt) – Poles2d (TColgp_Array1OfPnt2d) – Weigths (TColStd_Array1OfReal &) –
Return type:	bool

D1()¶

compute the first derivative in v direction of the section for v = param Warning : It used only for C1 or C2 aproximation

Parameters:	Param (float) – First (float) – Last (float) – Poles (TColgp_Array1OfPnt) – DPoles (TColgp_Array1OfVec) – Poles2d (TColgp_Array1OfPnt2d) – DPoles2d (TColgp_Array1OfVec2d) – Weigths (TColStd_Array1OfReal &) – DWeigths (TColStd_Array1OfReal &) –
Return type:	bool

D2()¶

compute the second derivative in v direction of the section for v = param Warning : It used only for C2 aproximation

Parameters:

Param (float) –
First (float) –
Last (float) –
Poles (TColgp_Array1OfPnt) –
DPoles (TColgp_Array1OfVec) –
D2Poles (TColgp_Array1OfVec) –
Poles2d (TColgp_Array1OfPnt2d) –
DPoles2d (TColgp_Array1OfVec2d) –
D2Poles2d (TColgp_Array1OfVec2d) –
Weigths (TColStd_Array1OfReal &) –
DWeigths (TColStd_Array1OfReal &) –
D2Weigths (TColStd_Array1OfReal &) –

Return type:

bool

GetHandle()¶

GetMinimalWeight()¶

Compute the minimal value of weight for each poles in all sections. This information is usefull to control error in rational approximation. Warning: Used only if <self> IsRational

Parameters:	Weigths (TColStd_Array1OfReal &) –
Return type:	void

GetTolerance()¶

Returns the tolerance to reach in approximation to satisfy. BoundTol error at the Boundary AngleTol tangent error at the Boundary (in radian) SurfTol error inside the surface.

Parameters:	BoundTol (float) – SurfTol (float) – AngleTol (float) – Tol3d (TColStd_Array1OfReal &) –
Return type:	void

Intervals()¶

Stores in <T> the parameters bounding the intervals of continuity <S>. //! The array must provide enough room to accomodate for the parameters. i.e. T.Length() > NbIntervals()

Parameters:	T (TColStd_Array1OfReal &) – S (GeomAbs_Shape) –
Return type:	void

IsRational()¶

Returns if the sections are rationnal or not

Return type:	bool

Knots()¶

get the Knots of the section

Parameters:	TKnots (TColStd_Array1OfReal &) –
Return type:	void

MaximalSection()¶

Returns the length of the greater section. This information is usefull to G1’s control. Warning: With an little value, approximation can be slower.

Return type:	float

Mults()¶

get the Multplicities of the section

Parameters:	TMults (TColStd_Array1OfInteger &) –
Return type:	void

Nb2dCurves()¶

get the number of 2d curves to approximate.

Return type:	int

NbIntervals()¶

Returns the number of intervals for continuity <S>. May be one if Continuity(me) >= <S>

Parameters:	S (GeomAbs_Shape) –
Return type:	int

Resolution()¶

Returns the resolutions in the sub-space 2d <Index> This information is usfull to find an good tolerance in 2d approximation.

Parameters:	Index (int) – Tol (float) – TolU (float &) – TolV (float &) –
Return type:	void

SectionShape()¶

get the format of an section

Parameters:	NbPoles (int &) – NbKnots (int &) – Degree (int &) –
Return type:	void

SetInterval()¶

Sets the bounds of the parametric interval on the fonction This determines the derivatives in these values if the function is not Cn.

Parameters:	First (float) – Last (float) –
Return type:	void

SetTolerance()¶

Is usefull, if (me) have to run numerical algorithm to perform D0, D1 or D2

Parameters:	Tol3d (float) – Tol2d (float) –
Return type:	void

thisown¶: The membership flag

class Handle_Approx_CurvlinFunc(*args)¶

Bases: OCC.MMgt.Handle_MMgt_TShared

static DownCast()¶

GetObject()¶

IsNull()¶

Nullify()¶

thisown¶: The membership flag

class Handle_Approx_HArray1OfAdHSurface(*args)¶

Bases: OCC.MMgt.Handle_MMgt_TShared

static DownCast()¶

GetObject()¶

IsNull()¶

Nullify()¶

thisown¶: The membership flag

class Handle_Approx_HArray1OfGTrsf2d(*args)¶

Bases: OCC.MMgt.Handle_MMgt_TShared

static DownCast()¶

GetObject()¶

IsNull()¶

Nullify()¶

thisown¶: The membership flag

class Handle_Approx_SequenceNodeOfSequenceOfHArray1OfReal(*args)¶

Bases: OCC.TCollection.Handle_TCollection_SeqNode

static DownCast()¶

GetObject()¶

IsNull()¶

Nullify()¶

thisown¶: The membership flag

class Handle_Approx_SweepFunction(*args)¶

Bases: OCC.MMgt.Handle_MMgt_TShared

static DownCast()¶

GetObject()¶

IsNull()¶

Nullify()¶

thisown¶: The membership flag

class SwigPyIterator(*args, **kwargs)¶

Bases: object

advance()¶

copy()¶

decr()¶

distance()¶

equal()¶

incr()¶

next()¶

previous()¶

thisown¶: The membership flag

value()¶

register_handle(handle, base_object)¶: Inserts the handle into the base object to prevent memory corruption in certain cases