From 4792aadc3ab8fc33084d012342b2afbd80890968 Mon Sep 17 00:00:00 2001
From: Jaime van Kessel <nallath@gmail.com>
Date: Thu, 22 Sep 2016 14:11:44 +0200
Subject: [PATCH] Platform collision no longer crashes if node has no parent

CURA-2443
---
 cura/PlatformPhysics.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cura/PlatformPhysics.py b/cura/PlatformPhysics.py
index 2a5bd4091c..4325703a37 100644
--- a/cura/PlatformPhysics.py
+++ b/cura/PlatformPhysics.py
@@ -102,7 +102,7 @@ class PlatformPhysics:
                         continue
                     
                     # Ignore collisions within a group
-                    if other_node.getParent().callDecoration("isGroup") is not None or node.getParent().callDecoration("isGroup") is not None:
+                    if other_node.getParent() and node.getParent() and (other_node.getParent().callDecoration("isGroup") is not None or node.getParent().callDecoration("isGroup") is not None):
                         continue
                     
                     # Ignore nodes that do not have the right properties set.