From 3008c918937b0bae8f5ee5b497efecb5bb9ea64b Mon Sep 17 00:00:00 2001
From: eap <eap@opencascade.com>
Date: Mon, 21 May 2007 07:33:28 +0000
Subject: [PATCH] NPAL15983 (EDF PAL 413: Bug when displaying empty groups)
 void GEOM_Displayer::Update( SALOME_OCCPrs* prs ) { ... +          if
 (!TopoDS_Iterator(myShape).More()) return;

---
 src/GEOMGUI/GEOM_Displayer.cxx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/GEOMGUI/GEOM_Displayer.cxx b/src/GEOMGUI/GEOM_Displayer.cxx
index 60fbb31ec..8e52ce44c 100644
--- a/src/GEOMGUI/GEOM_Displayer.cxx
+++ b/src/GEOMGUI/GEOM_Displayer.cxx
@@ -82,6 +82,7 @@
 #include <gp_Pln.hxx>
 #include <TColStd_MapOfInteger.hxx>
 #include <TColStd_MapIteratorOfMapOfInteger.hxx>
+#include <TopoDS_Iterator.hxx>
 
 // VTK Includes
 #include <vtkActorCollection.h>
@@ -525,8 +526,11 @@ void GEOM_Displayer::Update( SALOME_OCCPrs* prs )
         Handle(GEOM_AISShape) AISShape;
         if (myType == GEOM_VECTOR)
           AISShape = new GEOM_AISVector (myShape, "");
-        else
+        else {
+          if (!TopoDS_Iterator(myShape).More())
+            return;// NPAL15983 (Bug when displaying empty groups)
           AISShape = new GEOM_AISShape (myShape, "");
+        }
         // Temporary staff: vertex must be infinite for correct visualization
         AISShape->SetInfiniteState( myShape.Infinite() || myShape.ShapeType() == TopAbs_VERTEX );
 
-- 
2.39.2