From 45a3ad0168f1d5f59d7deca71738c4746ad1e6f3 Mon Sep 17 00:00:00 2001
From: agv <agv@opencascade.com>
Date: Fri, 26 Nov 2021 19:48:53 +0300
Subject: [PATCH] 0032692: Mesh - In BRepMesh_ModelPreProcessor avoid crashes
 with problematic topology

---
 src/BRepMesh/BRepMesh_ModelPreProcessor.cxx | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/BRepMesh/BRepMesh_ModelPreProcessor.cxx b/src/BRepMesh/BRepMesh_ModelPreProcessor.cxx
index 80722d0313..264d02c891 100644
--- a/src/BRepMesh/BRepMesh_ModelPreProcessor.cxx
+++ b/src/BRepMesh/BRepMesh_ModelPreProcessor.cxx
@@ -110,7 +110,7 @@ namespace
     void operator()(const Standard_Integer theFaceIndex) const
     {
       const IMeshData::IFaceHandle& aDFace = myModel->GetFace(theFaceIndex);
-      if (aDFace->GetSurface()->GetType() != GeomAbs_Cone)
+      if (aDFace->GetSurface()->GetType() != GeomAbs_Cone || aDFace->WiresNb() == 0)
       {
         return;
       }
@@ -119,7 +119,7 @@ namespace
       for (Standard_Integer aEdgeIdx = 0; aEdgeIdx < aDWire->EdgesNb() - 1; ++aEdgeIdx)
       {
         const IMeshData::IEdgePtr& aDEdge = aDWire->GetEdge (aEdgeIdx);
-        
+
         if (aDEdge->GetPCurve(aDFace.get(), TopAbs_FORWARD) != aDEdge->GetPCurve(aDFace.get(), TopAbs_REVERSED))
         {
           if (aDEdge->GetCurve()->ParametersNb() == 2)
@@ -137,7 +137,7 @@ namespace
             }
           }
           return;
-        } 
+        }
       }
     }
 
-- 
2.39.5