From: eap <eap@opencascade.com>
Date: Mon, 5 Aug 2013 10:58:04 +0000 (+0000)
Subject: Prevent SIGSEGV
X-Git-Tag: V7_3_0a1~230
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=27a1dc566b3fbc294fc761f7939a6dec51ecdeb3;p=modules%2Fsmesh.git

Prevent SIGSEGV
             if ( !anActor ) anActor = SMESH::CreateActor( aMeshSObj->GetStudy(), aMeshSObj->GetID().c_str(), true );
+            if ( anActor ) // actor is not created for an empty mesh
+            {
+              anActor->SetEntityMode( entities );
---

diff --git a/src/SMESHGUI/SMESHGUI_ComputeDlg.cxx b/src/SMESHGUI/SMESHGUI_ComputeDlg.cxx
index 0415094f1..26180bedb 100644
--- a/src/SMESHGUI/SMESHGUI_ComputeDlg.cxx
+++ b/src/SMESHGUI/SMESHGUI_ComputeDlg.cxx
@@ -906,10 +906,11 @@ void SMESHGUI_BaseComputeOp::computeMesh()
 #endif
             SMESH_Actor *anActor = SMESH::FindActorByObject( myMesh );
             if ( !anActor ) anActor = SMESH::CreateActor( aMeshSObj->GetStudy(), aMeshSObj->GetID().c_str(), true );    
-
-            anActor->SetEntityMode( entities );
-            SMESH::DisplayActor( SMESH::GetActiveWindow(), anActor );
-
+            if ( anActor ) // actor is not created for an empty mesh
+            {
+              anActor->SetEntityMode( entities );
+              SMESH::DisplayActor( SMESH::GetActiveWindow(), anActor );
+            }
             SMESH::Update(myIObject, true);
 
             if ( limitExceeded )