how i use WP7 mobile in wireless-based indoors positioning system?

can I use WP7 mobile in wireless-based indoors positioning system (i.e WIFI-based positioning system inside a开发者_JS百科 building) ?

and if i can .. what about the type of map (for example vector map )

all of this in WP7 ..can I ?

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It is likely to be very difficult to do this accurately with the current API.

There is only very little network information available to your application (see http://msdn.microsoft.com/en-us/library/k056bfdz(v=VS.95).aspx)

One of the aims of the WP7 SDK/API was to make working with location simpler. This is why location information has been abstracted away behind the GeoCoordinateWatcher. This is not designed for providing location based purely on (private) WiFi network information.

If you are trying to develop an application that must be able to interact closely with wireless networks then WP7 is currently not an appropriate platform for doing this.