title: three.js - create cube around tube geometry
body: <p>Please find the URL for tube geometry: <a href="https://stackoverflow.com/questions/12530637/three-js-move-camera-inside-tube-geometry">3d tube with 200 points of data passed in JSON format.</a></p>
  
  <p>As number of points vary for the length of the tube, how do I create a transparent cube around tube geometry dynamically to cover entire tube structure inside the cube and the whole scene look like a pipe inside a surface ?</p>