From 25fce7a95ae19bdc866cb178616599c6b39d0f5e Mon Sep 17 00:00:00 2001
From: Julian Daube <joposter@gmail.com>
Date: Mon, 1 Jul 2019 13:07:38 +0200
Subject: [PATCH] structure: remove tree links

---
 gds/elements.py | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/gds/elements.py b/gds/elements.py
index 9665b7a..ab65758 100644
--- a/gds/elements.py
+++ b/gds/elements.py
@@ -64,13 +64,12 @@ class Box(Element, Drawable):
     points = []
 
 class SRef(Element):
-    Position = None
-    Structure = ""
+    position = (0,0)
+    structure = ""
     
     transformation  = Transformation()
 
     # tree
-    Parent   = None
-    Children = []
+    parent   = None