title: DynamicDataDisplay WPF - Get data visible in current viewport
body: <p>This question is about the DynamicDataDisplay library available at  <a href="http://dynamicdatadisplay.codeplex.com/" rel="nofollow">codeplex</a>.</p>
  
  <p>Is there a way to get the data that is currently visible in the current ViewPort.</p>
  
  <p>i.e. I want to get the data that is currently visible when the user does a ctrl+mouse zoom.</p>