I am in a need of a solution for mobile devices, which will allow to display offline map with some 400 POIS of a given city. I have digged a bit and am stacked with the idea. I will develop my application with rhomobile, so I would have browser, ruby . Could you maybe give some hint which library and tools should I use? It seems openstreetmap is what I need , but I don't understand or don't know which tool can do following
1) Expprt the whole city into offline file which then could be loaded by some javascript library from local folder and show
I have found out that with mapnik I can generate map tiles and offline in mobile app use them. Openlayers will serve as map showing framework. Thanks for them who tried to help.