this._vcrViewController_.setObjectsToTrack(this._itrObjsToTrack_);
// Set up a layer to render the objects we're tracking.
// Set up a SelectListener to drag the spheres.
this._glcWwd_.addSelectListener(new SelectListener()
{
protected BasicDragger dragger = new BasicDragger(_glcWwd_);
@Override
public void selected(SelectEvent evtSelect)