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0020970: CEA 423 Bug on normal on a sphere

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vsr 2010-10-05 09:46:23 +00:00
parent 7f82ab7d2a
commit e0f54fb506
1 changed files with 11 additions and 0 deletions
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11
src/GEOMImpl/GEOMImpl_MeasureDriver.cxx
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@ -216,6 +216,17 @@ Standard_Integer GEOMImpl_MeasureDriver::Execute(TFunction_Logbook& log) const
gp_Vec Vec1,Vec2;
BRepAdaptor_Surface SF (aFace);
SF.D1(pUV.X(), pUV.Y(), p1, Vec1, Vec2);
if (Vec1.Magnitude() < Precision::Confusion()) {
gp_Vec tmpV;
gp_Pnt tmpP;
SF.D1(pUV.X(), pUV.Y()-0.1, tmpP, Vec1, tmpV);
}
else if (Vec2.Magnitude() < Precision::Confusion()) {
gp_Vec tmpV;
gp_Pnt tmpP;
SF.D1(pUV.X()-0.1, pUV.Y(), tmpP, tmpV, Vec2);
}
gp_Vec V = Vec1.Crossed(Vec2);
Standard_Real mod = V.Magnitude();
if (mod < Precision::Confusion())