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0026498: BRepOffsetAPI_MakeOffset causes segmentation fault

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Test case for issue CR26498
This commit is contained in:
isn
2015-08-27 13:52:14 +03:00
committed by ski
parent e43a4f2bd9
commit 7642e2d02d
2 changed files with 61 additions and 0 deletions
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19
src/BRepFill/BRepFill_OffsetWire.cxx
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@@ -222,6 +222,8 @@ static void MakeOffset
const GeomAbs_JoinType theJoinType,
const TopoDS_Vertex * Ends);
Standard_Boolean CheckSmallParamOnEdge(const TopoDS_Edge& anEdge);
//=======================================================================
//function : KPartCircle
//purpose :
@@ -1379,6 +1381,8 @@ void BRepFill_OffsetWire::MakeWires()
TopExp::Vertices (E,V1,V2);
if (V1.IsSame(V2) && IsSmallClosedEdge(E, V1))
continue; //remove small closed edges
if (!CheckSmallParamOnEdge(E))
continue;
if (!MVE.Contains(V1)) {
TopTools_ListOfShape empty;
MVE.Add(V1,empty);
@@ -2756,3 +2760,18 @@ static void QuasiFleche(const Adaptor3d_Curve& C,
}
}
Standard_Boolean CheckSmallParamOnEdge(const TopoDS_Edge& anEdge)
{
const BRep_ListOfCurveRepresentation& aList = ((Handle(BRep_TEdge)::DownCast(anEdge.TShape()))->Curves());
if (!aList.IsEmpty())
{
Handle( BRep_CurveRepresentation ) CRep = ((Handle(BRep_TEdge)::DownCast(anEdge.TShape()))->Curves()).First();
Standard_Real f = (Handle(BRep_GCurve)::DownCast(CRep))->First();
Standard_Real l = (Handle(BRep_GCurve)::DownCast(CRep))->Last();
if (Abs (l - f) < Precision::PConfusion())
return Standard_False;
}
return Standard_True;
}