title: Getting data from matplotlib axes object
body: <p>I'm trying to determine what the data points are on a matplotlib <a href="http://matplotlib.org/api/axes_api.html#matplotlib-axes" rel="noreferrer">axes</a>.  Is there an attribute I'm missing on the <a href="http://matplotlib.org/api/axes_api.html#matplotlib-axes" rel="noreferrer">Axes</a> object to get the x/y data values?</p>
  
  <p>For example, say my code is passed a line plot, and I want to print out the x/y values that are plotted.</p>