The Naval Research Laboratory built an app that can 3D map a room on an Android phone: http://www.technologyreview.com/view/429394/placeraider-the-military-smar

The Naval Research Laboratory built an app that can 3D map a room on an Android phone: http://www.technologyreview.com/view/429394/placeraider-the-military-smartphone-malware-designed-to-steal-your-life/ http://www.technologyreview.com/view/429394/placeraider-the-... Google is building a phone to make it very accurate: https://www.google.com/atap/projecttango/#project https://www.google.com/atap/projecttango/#project This might enable it if anyone wants to build the app: http://octomap.github.io/ http://octomap.github.io/ http://wiki.openstreetmap.org/wiki/IndoorOSM_on_Android http://wiki.openstreetmap.org/wiki/IndoorOSM_on_Android