From 5c6feed39d719b6af02a38b5b49a4e1e8b0318b1 Mon Sep 17 00:00:00 2001
From: vsv <vsv@opencascade.com>
Date: Mon, 17 Jun 2019 18:28:12 +0300
Subject: [PATCH] Prevent crash on sketcher plane change

---
 src/SketcherPrs/SketcherPrs_PositionMgr.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/SketcherPrs/SketcherPrs_PositionMgr.cpp b/src/SketcherPrs/SketcherPrs_PositionMgr.cpp
index d98ffa0ac..0a546233d 100644
--- a/src/SketcherPrs/SketcherPrs_PositionMgr.cpp
+++ b/src/SketcherPrs/SketcherPrs_PositionMgr.cpp
@@ -361,6 +361,8 @@ gp_Pnt SketcherPrs_PositionMgr::getPointPosition(
   double theStep, GeomPointPtr thePnt)
 {
   gp_Pnt aP = thePnt->impl<gp_Pnt>();
+  if (!thePrs->plane().get())
+    return aP;
   GeomDirPtr aNormal = thePrs->plane()->normal();
   gp_Dir aNormDir = aNormal->impl<gp_Dir>();
 
-- 
2.39.2