From 4d5ef64c070b00a30f99ac5ff89034e90d28d7e6 Mon Sep 17 00:00:00 2001
From: vsv <vitaly.smetannikov@opencascade.com>
Date: Mon, 29 Dec 2014 18:38:40 +0300
Subject: [PATCH] Avoid crash with null shape for presentation

---
 src/ModuleBase/ModuleBase_ResultPrs.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/ModuleBase/ModuleBase_ResultPrs.cpp b/src/ModuleBase/ModuleBase_ResultPrs.cpp
index 5031dac24..3e24e1e76 100644
--- a/src/ModuleBase/ModuleBase_ResultPrs.cpp
+++ b/src/ModuleBase/ModuleBase_ResultPrs.cpp
@@ -51,8 +51,10 @@ void ModuleBase_ResultPrs::Compute(const Handle(PrsMgr_PresentationManager3d)& t
   if (!aShapePtr)
     return;
   myOriginalShape = aShapePtr->impl<TopoDS_Shape>();
-  Set(aShapePtr->impl<TopoDS_Shape>());
-  AIS_Shape::Compute(thePresentationManager, thePresentation, theMode);
+  if (!myOriginalShape.IsNull()) {
+    Set(aShapePtr->impl<TopoDS_Shape>());
+    AIS_Shape::Compute(thePresentationManager, thePresentation, theMode);
+  }
 }
 
 
-- 
2.39.2