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0025104: Prism from BSpline curve can not be chamfered

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Protection from zero-length vectors has been added.
This commit is contained in:
aml
2017-11-02 12:08:18 +03:00
committed by bugmaster
parent f16a6cc5aa
commit 90f0fdad2a
5 changed files with 16 additions and 14 deletions
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21
src/IntTools/IntTools_EdgeEdge.cxx
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@@ -996,15 +996,22 @@ Standard_Boolean IntTools_EdgeEdge::IsIntersection(const Standard_Real aT11,
}
//
Standard_Real anAngleCriteria;
Standard_Real anAngle1, anAngle2;
Standard_Real anAngle1 = 0.0,
anAngle2 = 0.0;
//
anAngleCriteria = 5.e-3;
if (bSmall_11_21 && bSmall_12_22) {
anAngle1 = aV11.Angle(aV21);
anAngle2 = aV12.Angle(aV22);
} else {
anAngle1 = aV11.Angle(aV22);
anAngle2 = aV12.Angle(aV21);
if (aV11.SquareMagnitude() > Precision::SquareConfusion() &&
aV12.SquareMagnitude() > Precision::SquareConfusion() &&
aV21.SquareMagnitude() > Precision::SquareConfusion() &&
aV22.SquareMagnitude() > Precision::SquareConfusion() )
{
if (bSmall_11_21 && bSmall_12_22) {
anAngle1 = aV11.Angle(aV21);
anAngle2 = aV12.Angle(aV22);
} else {
anAngle1 = aV11.Angle(aV22);
anAngle2 = aV12.Angle(aV21);
}
}
//
if (((anAngle1 < anAngleCriteria) || ((M_PI - anAngle1) < anAngleCriteria)) ||