Additional fix for 29713

diff --git a/src/ShapeAnalysis/ShapeAnalysis_Edge.cxx b/src/ShapeAnalysis/ShapeAnalysis_Edge.cxx
index 0ae7794bd438e0cbaf7a3d72cc72de95ba0ca133..5342e2a924041f8efed99c0311cd1bb61fb5ccf7 100644 (file)
--- a/src/ShapeAnalysis/ShapeAnalysis_Edge.cxx
+++ b/src/ShapeAnalysis/ShapeAnalysis_Edge.cxx
@@ -438,7 +438,7 @@ Standard_Boolean ShapeAnalysis_Edge::CheckCurve3dWithPCurve (const TopoDS_Edge&
   TopoDS_Vertex aFirstVert = FirstVertex (edge);
   TopoDS_Vertex aLastVert  = LastVertex (edge);
 
-  if (aFirstVert.IsNull() || aLastVert.IsNull())
+  if (aFirstVert.IsNull() || aLastVert.IsNull() || aFirstVert.IsSame(aLastVert))
     return Standard_False;
 
   Standard_Real preci1 = BRep_Tool::Tolerance (aFirstVert),