Hi everyone,

I'd like to know (from a high level view) what would be required to take a pdf floor plan of a building and determine where exactly you are on that floor plan using GPS coordinates? In addition to location, the user would be presented with a "turn by turn" directions to another point on the map, navigating down hallways, between cubicles, etc.

Use case: an iPhone app that determined a user's location and guided them to a conference room or person's office in the building.

I realize that this is by no means trivial, but any help is appreciated. Thanks!