OCC.Core.AdvApprox module

AdvApprox module, see official documentation at https://www.opencascade.com/doc/occt-7.4.0/refman/html/package_advapprox.html

class AdvApprox_ApproxAFunction(*args)

Bases: object

• Constructs approximator tool. //! Warning: the Func should be valid reference to object of type inherited from class EvaluatorFunction from Approx with life time longer than that of the approximator tool; //! the result should be formatted in the following way<–Num1DSS–> <–2 * Num2DSS–> <–3 * Num3DSS–> R[0] …. R[Num1DSS]….. R[Dimension-1] //! the order in which each Subspace appears should be consistent with the tolerances given in the create function and the results will be given in that order as well that isCurve2d(n) will correspond to the nth entry described by Num2DSS, Curve(n) will correspond to the nth entry described by Num3DSS The same type of schema applies to the Poles1d, Poles2d and Poles.

  param Num1DSS

  type Num1DSS

  int

  param Num2DSS

  type Num2DSS

  int

  param Num3DSS

  type Num3DSS

  int

  param OneDTol

  type OneDTol

  TColStd_HArray1OfReal

  param TwoDTol

  type TwoDTol

  TColStd_HArray1OfReal

  param ThreeDTol

  type ThreeDTol

  TColStd_HArray1OfReal

  param First

  type First

  float

  param Last

  type Last

  float

  param Continuity

  type Continuity

  GeomAbs_Shape

  param MaxDeg

  type MaxDeg

  int

  param MaxSeg

  type MaxSeg

  int

  param Func

  type Func

  AdvApprox_EvaluatorFunction

  rtype

  None* Approximation with user methode of cutting

  param Num1DSS

  type Num1DSS

  int

  param Num2DSS

  type Num2DSS

  int

  param Num3DSS

  type Num3DSS

  int

  param OneDTol

  type OneDTol

  TColStd_HArray1OfReal

  param TwoDTol

  type TwoDTol

  TColStd_HArray1OfReal

  param ThreeDTol

  type ThreeDTol

  TColStd_HArray1OfReal

  param First

  type First

  float

  param Last

  type Last

  float

  param Continuity

  type Continuity

  GeomAbs_Shape

  param MaxDeg

  type MaxDeg

  int

  param MaxSeg

  type MaxSeg

  int

  param Func

  type Func

  AdvApprox_EvaluatorFunction

  param CutTool

  type CutTool

  AdvApprox_Cutting

  rtype

  None

static Approximation()

Parameters

TotalDimension –

type TotalDimension

int

param TotalNumSS

type TotalNumSS

int

param LocalDimension

type LocalDimension

TColStd_Array1OfInteger

param First

type First

float

param Last

type Last

float

param Evaluator

type Evaluator

AdvApprox_EvaluatorFunction

param CutTool

type CutTool

AdvApprox_Cutting

param ContinuityOrder

type ContinuityOrder

int

param NumMaxCoeffs

type NumMaxCoeffs

int

param MaxSegments

type MaxSegments

int

param TolerancesArray

type TolerancesArray

TColStd_Array1OfReal

param code_precis

type code_precis

int

param NumCurves

type NumCurves

int

param NumCoeffPerCurveArray

type NumCoeffPerCurveArray

TColStd_Array1OfInteger

param LocalCoefficientArray

type LocalCoefficientArray

TColStd_Array1OfReal

param IntervalsArray

type IntervalsArray

TColStd_Array1OfReal

param ErrorMaxArray

type ErrorMaxArray

TColStd_Array1OfReal

param AverageErrorArray

type AverageErrorArray

TColStd_Array1OfReal

param ErrorCode

type ErrorCode

int

rtype

void

AverageError()

• returns the error as is in the algorithms

  param Dimension

  type Dimension

  int

  rtype

  opencascade::handle<TColStd_HArray1OfReal>:param Dimension:

  type Dimension

  int

  param Index

  type Index

  int

  rtype

  float

Degree()

Return type

int

DumpToString(AdvApprox_ApproxAFunction self) → std::string

HasResult()

Return type

bool

IsDone()

Return type

bool

Knots()

Return type

opencascade::handle<TColStd_HArray1OfReal>

MaxError()

• returns the error as is in the algorithms

  param Dimension

  type Dimension

  int

  rtype

  opencascade::handle<TColStd_HArray1OfReal>:param Dimension:

  type Dimension

  int

  param Index

  type Index

  int

  rtype

  float

Multiplicities()

Return type

opencascade::handle<TColStd_HArray1OfInteger>

NbKnots()

Return type

int

NbPoles()

• as the name says

  rtype

  int

NumSubSpaces()

Parameters

Dimension –

type Dimension

int

rtype

int

Poles()

• – returns the poles from the algorithms as is

  rtype

  opencascade::handle<TColgp_HArray2OfPnt>* returns the poles at Index from the 3d subspace

  param Index

  type Index

  int

  param P

  type P

  TColgp_Array1OfPnt

  rtype

  None

Poles1d()

• returns the poles from the algorithms as is

  rtype

  opencascade::handle<TColStd_HArray2OfReal>* returns the poles at Index from the 1d subspace

  param Index

  type Index

  int

  param P

  type P

  TColStd_Array1OfReal

  rtype

  None

Poles2d()

• returns the poles from the algorithms as is

  rtype

  opencascade::handle<TColgp_HArray2OfPnt2d>* returns the poles at Index from the 2d subspace

  param Index

  type Index

  int

  param P

  type P

  TColgp_Array1OfPnt2d

  rtype

  None

property thisown

The membership flag

class AdvApprox_Cutting(*args, **kwargs)

Bases: object

Value()

Parameters

a –

type a

float

param b

type b

float

param cuttingvalue

type cuttingvalue

float

rtype

bool

property thisown

The membership flag

class AdvApprox_DichoCutting(*args)

Bases: OCC.Core.AdvApprox.AdvApprox_Cutting

Return type

None

property thisown

The membership flag

class AdvApprox_PrefAndRec(*args)

Bases: OCC.Core.AdvApprox.AdvApprox_Cutting

Parameters

RecomendedCut –

type RecomendedCut

TColStd_Array1OfReal

param PrefferedCut

type PrefferedCut

TColStd_Array1OfReal

param Weight

default value is 5

type Weight

float

rtype

None

property thisown

The membership flag

class AdvApprox_PrefCutting(*args)

Bases: OCC.Core.AdvApprox.AdvApprox_Cutting

Parameters

CutPnts –

type CutPnts

TColStd_Array1OfReal

rtype

None

property thisown

The membership flag

class AdvApprox_SimpleApprox(*args)

Bases: object

Parameters

TotalDimension –

type TotalDimension

int

param TotalNumSS

type TotalNumSS

int

param Continuity

type Continuity

GeomAbs_Shape

param WorkDegree

type WorkDegree

int

param NbGaussPoints

type NbGaussPoints

int

param JacobiBase

type JacobiBase

PLib_JacobiPolynomial

param Func

type Func

AdvApprox_EvaluatorFunction

rtype

None

AverageError()

Parameters

Index –

type Index

int

rtype

float

Coefficients()

• returns the coefficients in the Jacobi Base

  rtype

  opencascade::handle<TColStd_HArray1OfReal>

Degree()

Return type

int

DifTab()

Return type

opencascade::handle<TColStd_HArray1OfReal>

DumpToString(AdvApprox_SimpleApprox self) → std::string

FirstConstr()

• returns the constraints at First

  rtype

  opencascade::handle<TColStd_HArray2OfReal>

IsDone()

Return type

bool

LastConstr()

• returns the constraints at Last

  rtype

  opencascade::handle<TColStd_HArray2OfReal>

MaxError()

Parameters

Index –

type Index

int

rtype

float

Perform()

• Constructs approximator tool. //! Warning: the Func should be valid reference to object of type inherited from class EvaluatorFunction from Approx with life time longer than that of the approximator tool;

  param LocalDimension

  type LocalDimension

  TColStd_Array1OfInteger

  param LocalTolerancesArray

  type LocalTolerancesArray

  TColStd_Array1OfReal

  param First

  type First

  float

  param Last

  type Last

  float

  param MaxDegree

  type MaxDegree

  int

  rtype

  None

SomTab()

Return type

opencascade::handle<TColStd_HArray1OfReal>

property thisown

The membership flag

class SwigPyIterator(*args, **kwargs)

Bases: object

advance()

copy()

decr()

distance()

equal()

incr()

next()

previous()

property thisown

The membership flag

value()