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0033179: Modeling Algorithms - Crash in in ShapeFix_Shape with the attached object, when healing for fixing SameParameterFlag

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BSplCLib_2.cxx - method MergeBSplineKnots is modified in order to have always not empty result.
Geom2dConvert.cxx - in static function MultNumandDenom tolerance for comparing knots is decreased.
This commit is contained in:
ifv 2022-11-18 10:13:16 +03:00
parent ea5f35f4e5
commit 316d3693a4
2 changed files with 16 additions and 1 deletions
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15
src/BSplCLib/BSplCLib_2.cxx
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@ -1234,5 +1234,20 @@ void BSplCLib::MergeBSplineKnots
} }
NumPoles = index - degree - 1 ; NumPoles = index - degree - 1 ;
} }
else
{
degree = Degree1 + Degree2;
num_knots = 2;
NewKnots =
new TColStd_HArray1OfReal(1, num_knots);
NewKnots->ChangeArray1()(1) = StartValue;
NewKnots->ChangeArray1()(num_knots) = EndValue;
NewMults =
new TColStd_HArray1OfInteger(1, num_knots);
NewMults->ChangeArray1()(1) = degree + 1;
NewMults->ChangeArray1()(num_knots) = degree + 1;
NumPoles = BSplCLib::NbPoles(degree, Standard_False, NewMults->Array1());
}
} }

2
src/Geom2dConvert/Geom2dConvert.cxx
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@ -519,7 +519,6 @@ static Handle(Geom2d_BSplineCurve) MultNumandDenom(const Handle(Geom2d_BSplineCu
Handle(TColStd_HArray1OfReal) resKnots; Handle(TColStd_HArray1OfReal) resKnots;
Handle(TColStd_HArray1OfInteger) resMults; Handle(TColStd_HArray1OfInteger) resMults;
Standard_Real start_value,end_value; Standard_Real start_value,end_value;
Standard_Real tolerance=Precision::Confusion();
Standard_Integer resNbPoles,degree, Standard_Integer resNbPoles,degree,
ii,jj, ii,jj,
aStatus; aStatus;
@ -531,6 +530,7 @@ static Handle(Geom2d_BSplineCurve) MultNumandDenom(const Handle(Geom2d_BSplineCu
BS->KnotSequence(BSFlatKnots); BS->KnotSequence(BSFlatKnots);
start_value = BSKnots(1); start_value = BSKnots(1);
end_value = BSKnots(BS->NbKnots()); end_value = BSKnots(BS->NbKnots());
Standard_Real tolerance = 10.*Epsilon(Abs(end_value));
a->Knots(aKnots); a->Knots(aKnots);
a->Poles(aPoles); a->Poles(aPoles);