title: Indoor Android Map
body: <p>I would like to map a building (one from my University) and navigate through it using just the phone. 
  No wifi/gps/bluetooth. I will give the coordinates of my starting position by taping the screen or something similar (I can also use the user feedback for detecting the floor).</p>
  
  <p>What should I use to create the actual map of the building (floor map)?
  Could you give me some starting points/resources or describe how you would accomplish this task?
  I've got suggestions that I should use openGL <a href="https://www3.ntu.edu.sg/home/ehchua/programming/android/Android_3D.html" rel="nofollow noreferrer">https://www3.ntu.edu.sg/home/ehchua/programming/android/Android_3D.html</a> Or maybe JOSM but I don't know if it can be ported to Android and used for mobile navigation afterwards.</p>
  
  <p>Is there a simpler way? What should I use instead?</p>
  
  <p>What would be the next steps after creating the map? Should I consider developing the code for navigation by myself? Any starting points here as well or similar projects?</p>