title: Axes missing when plotting in matplotlib using vispy as backend
body: <p>I have been watching the development of the python graphing library <a href="http://vispy.org/" rel="nofollow">vispy</a> with excitement.  I just discovered that I can use vispy as a backend to matplotlib, which is great because I am plotting hundreds of thousands of points.  I ran the <a href="http://api.vispy.org/en/latest/examples/basics/plotting/mpl_plot.html" rel="nofollow">example</a> and I noticed there are no axes.  I also ran the following code.  </p>
  
  <pre><code>import vispy.mpl_plot as plt
  plt.plot([1,2,3,4], [1,4,9,16], 'ro')
  plt.show()    
  </code></pre>
  
  <p>The axes were present until the <code>plt.show()</code> command, and they disappeared.  I understand that the vispy project is under development, but plotting with axes would be extremely valuable to me, so I was wondering how I could do this.  Also, less urgently, the border around the graph becomes huge.  Is there a way to shrink the border?</p>