title: KML Direction of Movement Line
body: <p>I've been working with NASA WorldWind and Google Earth.  I'm using a KML <a href="https://developers.google.com/kml/documentation/kml_tut#placemarks" rel="nofollow noreferrer">placemark</a> for the icon, and I'm hoping to replicate a Header/Leader Line in KML.  I want a leader line similar to how the DIRECTION_OF_MOVEMENT line works in WorldWind for it's implementation on 2525 symbology.  Basically, the line indicates the direction that the object is moving in and it stays pointing towards that heading no matter the orientation of the map as shown by the black line in the attached screenshot.  How can I replicate this using KML in Google Earth?</p>
  
  <p><a href="https://i.stack.imgur.com/oNdWS.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/oNdWS.jpg" alt="enter image description here"></a></p>