title: Bordered group of nodes in a network graph?
body: <p>I am attempting to implement a network graph using Vis JS library and would like to implement a group of nodes that are inside a logical group (box). VisJS allows grouping of nodes but is not implemented in a visual way that I am looking for.</p>
  
  <p>Another library that executes this perfectly is GoJS: <a href="http://gojs.net/latest/samples/basic.html" rel="noreferrer">http://gojs.net/latest/samples/basic.html</a>
  Another example from VisJS that shows network graph I would like to implement, but no example in documentation: <a href="http://visjs.org/docs/img/vis_overview.png" rel="noreferrer">http://visjs.org/docs/img/vis_overview.png</a></p>
  
  <p>I would like to have nodes placed into larger boxes to represent the group of nodes.</p>
  
  <p>Any ideas or suggestions for implementing this?</p>