From 31e4fd8994353cb35034d0120f61497263539378 Mon Sep 17 00:00:00 2001
From: DeepSOIC <vv.titov@gmail.com>
Date: Sat, 16 May 2015 17:26:44 +0300
Subject: [PATCH] Sketcher: fix free-standing sketches

See forum thread, Sketch support == NULL
http://forum.freecadweb.org/viewtopic.php?f=20&t=10942
---
 src/Mod/Part/App/Part2DObject.cpp     | 2 +-
 src/Mod/Sketcher/App/SketchObject.cpp | 6 ++----
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/Mod/Part/App/Part2DObject.cpp b/src/Mod/Part/App/Part2DObject.cpp
index 9f224d8e3..4b82fbf6a 100644
--- a/src/Mod/Part/App/Part2DObject.cpp
+++ b/src/Mod/Part/App/Part2DObject.cpp
@@ -82,7 +82,7 @@ void Part2DObject::positionBySupport(void)
     gp_Pln plane;
     App::DocumentObject* support = Support.getValue();
     if (support == NULL)
-        throw Base::Exception("Sketch support has been deleted");
+        return;
 
     if (support->getTypeId().isDerivedFrom(App::Plane::getClassTypeId())) {
         // Find the name of the Baseplane without having to access PartDesignGui::BaseplaneNames[]
diff --git a/src/Mod/Sketcher/App/SketchObject.cpp b/src/Mod/Sketcher/App/SketchObject.cpp
index 3a52ac93e..07a390269 100644
--- a/src/Mod/Sketcher/App/SketchObject.cpp
+++ b/src/Mod/Sketcher/App/SketchObject.cpp
@@ -129,10 +129,8 @@ App::DocumentObjectExecReturn *SketchObject::execute(void)
 {
     try {
         App::DocumentObject* support = Support.getValue();
-        if (support == NULL)
-            return new App::DocumentObjectExecReturn("Sketch support has been deleted");
-
-        this->positionBySupport();
+        if (support)
+            this->positionBySupport();
     }
     catch (const Base::Exception& e) {
         return new App::DocumentObjectExecReturn(e.what());