Read node number on the command line

Trajectories/extract_component.py

@@ -20,7 +20,7 @@ else:
 g.set_directed(False)
 
 for v in g.vertices():
-    if g.vp.name[v] == "109114663": break
+    if g.vp.name[v] == sys.argv[2]: break
 
 label = topology.label_out_component(g, v)
 g.set_vertex_filter(label)