title: Android: Location: Is the returned altitude value measured from inside the building includes the sea level height to building?
body: <p>I found this link <a href="http://www.daftlogic.com/sandbox-google-maps-find-altitude.htm" rel="nofollow">Google Maps Find Altitude</a></p>
  
  <p>from there, you may receive this kind of result (sample result): </p>
  
  <blockquote>
    <p>number,latitude,longitude,meters,feet</p>
    
    <p>0,35.612557,139.62865699999998,17.025,55.857</p>
  </blockquote>
  
  <p>Problems:</p>
  
  <ol>
  <li>I am wondering if the 17.025m altitude value includes the sea level
  height. </li>
  <li>Is it the returned altitude value measured from sea level</li>
  </ol>
  
  <p><strong>UPDATE:</strong>
  additional problem: What will be the returned value for altitude inside the building's basement floor if the floor is under the sea level?</p>