title: Setting the zoom level of worldwind map
body: <p>I am trying to setup a layer using worldwind java and i want to render icons on the map at their specific geo locations.  I have that working but i want to be able to zoom to where all the icons are.  Is there an easy way to do that?  Im not really sure where to start..  Are there existing methods for zooming in on a group of points?</p>