Change default z value for nodes to 1

gns3server/controller/drawing.py

@@ -37,7 +37,7 @@ class Drawing:
     text, images, rectangle... They are pure SVG elements.
     """
 
-    def __init__(self, project, drawing_id=None, svg="<svg></svg>", x=0, y=0, z=0, rotation=0):
+    def __init__(self, project, drawing_id=None, svg="<svg></svg>", x=0, y=0, z=2, rotation=0):
         self._project = project
         if drawing_id is None:
             self._id = str(uuid.uuid4())

gns3server/controller/node.py

@@ -71,7 +71,7 @@ class Node:
         self._status = "stopped"
         self._x = 0
         self._y = 0
-        self._z = 0
+        self._z = 1  # default z value is 1
         self._ports = None
         self._symbol = None
         self._custom_adapters = []