diff --git a/osc/main.py b/osc/main.py
index 8a7b0ba..a28d70f 100644
--- a/osc/main.py
+++ b/osc/main.py
@@ -2,7 +2,11 @@ from graphviz import Digraph
 from pythonosc.dispatcher import Dispatcher
 from pythonosc.osc_server import BlockingOSCUDPServer
 
-g = Digraph('G', filename='graph.gv', format='pdf')
+edge_attrs = {
+    'arrowhead': 'vee',
+}
+
+g = Digraph('G', filename='graph.gv', format='pdf', engine='circo', strict=True, edge_attr = edge_attrs)
 
 # last vertex received
 v = -1
@@ -13,12 +17,14 @@ t = ""
 
 def print_vertex(address, *args):
     global v
+    global g
     v = args[args.index('vertex') + 1]
     if v == -1:
+        g = Digraph('G', filename='graph.gv', format='pdf', engine='circo', strict=True, edge_attr = edge_attrs)
         return
     g.node(str(v))
     g.render("Test")
-    print(v)
+    print(args)
 
 def print_edge(address, *args):
     global v
@@ -26,7 +32,8 @@ def print_edge(address, *args):
     global t
     w = args[args.index('w') + 1]
     t = args[args.index('edge_type') + 1]
-    print((v,w,t))
+    print(args)
+    # print((v,w,t))
     if v == -1 or w == -1:
         return
     g.edge(str(v), str(w))