X-Git-Url: http://git.dev.opencascade.org/gitweb/?p=occt.git;a=blobdiff_plain;f=src%2FBRepMesh%2FBRepMesh_IncrementalMesh.cxx;h=25627edc831140295ed8f365d9a8890e068a2035;hb=7756fc599d9c2b760296eeb290ae71152b17a792;hpb=b31fbc832ddf4fb505352f457c3596d58f002212

diff --git a/src/BRepMesh/BRepMesh_IncrementalMesh.cxx b/src/BRepMesh/BRepMesh_IncrementalMesh.cxx
index 24d3fd3658..25627edc83 100644
--- a/src/BRepMesh/BRepMesh_IncrementalMesh.cxx
+++ b/src/BRepMesh/BRepMesh_IncrementalMesh.cxx
@@ -108,15 +108,18 @@ void BRepMesh_IncrementalMesh::Perform(const Handle(IMeshTools_Context)& theCont
 
   myStatus = IMeshData_NoError;
   const Handle(IMeshData_Model)& aModel = theContext->GetModel();
-  for (Standard_Integer aFaceIt = 0; aFaceIt < aModel->FacesNb(); ++aFaceIt)
+  if (!aModel.IsNull())
   {
-    const IMeshData::IFaceHandle& aDFace = aModel->GetFace(aFaceIt);
-    myStatus |= aDFace->GetStatusMask();
-
-    for (Standard_Integer aWireIt = 0; aWireIt < aDFace->WiresNb(); ++aWireIt)
+    for (Standard_Integer aFaceIt = 0; aFaceIt < aModel->FacesNb(); ++aFaceIt)
     {
-      const IMeshData::IWireHandle& aDWire = aDFace->GetWire(aWireIt);
-      myStatus |= aDWire->GetStatusMask();
+      const IMeshData::IFaceHandle& aDFace = aModel->GetFace(aFaceIt);
+      myStatus |= aDFace->GetStatusMask();
+
+      for (Standard_Integer aWireIt = 0; aWireIt < aDFace->WiresNb(); ++aWireIt)
+      {
+        const IMeshData::IWireHandle& aDWire = aDFace->GetWire(aWireIt);
+        myStatus |= aDWire->GetStatusMask();
+      }
     }
   }