Wifi triangulation for android

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http://stackoverflow.com – I am trying to use wifi triangulation in an app that I am making and I think I am after biting off more than I can handle. The app will allow users to see where in a building they are (the building has only one floor) and there is an option to find where a room is. A route will be calculated to show the quickest route from where the user is to that room. I was hoping to use iDOCENT (http://www.egr.msu.edu/classes/ece480/capstone/spring11/group02/index.html). but after almost two months at it, I'm not after making much headway with it. That site does have documentation on it, but a lot if it (HowTos)