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0028784: [HLR] Crash while getting hidden lines for a compound

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Method HLRBRep_PolyHLRToShape::InternalCompound is modified: avoid creation an edge with null length.

Add testing Draw command.
This commit is contained in:
jgv
2017-06-02 17:26:10 +03:00
committed by bugmaster
parent 5e3047fd4a
commit 1fae7cdaf1
3 changed files with 57 additions and 3 deletions
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11
src/HLRBRep/HLRBRep_PolyHLRToShape.cxx
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@@ -132,8 +132,13 @@ HLRBRep_PolyHLRToShape::InternalCompound (const Standard_Integer typ,
if (todraw)
if (!S.IsNull()) todraw = Map.Contains(BP.Shape());
if (todraw) {
B.Add(Result,BRepLib_MakeEdge2d(BP.P1(),BP.P2()));
added = Standard_True;
const gp_Pnt2d& FirstP2d = BP.P1();
const gp_Pnt2d& LastP2d = BP.P2();
if (FirstP2d.SquareDistance(LastP2d) > 1.e-20)
{
B.Add(Result,BRepLib_MakeEdge2d(BP.P1(),BP.P2()));
added = Standard_True;
}
}
}
}
@@ -156,7 +161,7 @@ HLRBRep_PolyHLRToShape::InternalCompound (const Standard_Integer typ,
const gp_XY aSta2D(aSta.X(), aSta.Y());
const gp_XY aEnd2D(aEnd.X(), aEnd.Y());
const gp_XY aD = aEnd2D - aSta2D;
if (aD.Modulus() > 1.e-10) {
if (aD.SquareModulus() > 1.e-20) {
B.Add(Result,BRepLib_MakeEdge2d(aSta2D, aEnd2D));
added = Standard_True;
}