title: highcharts - is it possible to zoom pie charts
body: <p>I'm wondering if it is possible to zoom in on a slice in a pie chart. </p>
  
  <p>My chart is modeled after this example <a href="http://jsfiddle.net/gh/get/jquery/1.7.2/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/pie-donut/" rel="nofollow">jsfiddle example</a></p>
  
  <pre><code>chart: {
              renderTo: 'container',
              type: 'area',
              zoomType: 'x',
          }
  </code></pre>
  
  <p>But it doesn't seem to work with pie charts. Am I missing something here?
  Ideally, I would have a pie chart with 2 layers, where the outer layer serves as a child of the inner layer. When selecting a child slice, I could then have an entire pie chart showing that slice alone, along with its own children, etc.</p>