问题
we are developing an offline city map application for iPad, using Cloudmade SDKs. I'm curious, is there are any other SDKs which could be used for offline applications ?
回答1:
The better solution for me is:
1.- Generate your own maps with TileMill from Mapbox and then export to MBTiles format.
2.- Get the mapbox-ios-example and use the MBTiles file you just generated.
回答2:
Starting with April, 2014 there is also skobbler's /Telenav's SDK - it's got full offline capabilities (map rendering, routing & rerouting) and a map cutting tool if you want a map of a custom area (e.g. you provide the gpx enclosed polygon and you get back a map of that area)
See some examples in the demo apps and the how-to's
来源：https://stackoverflow.com/questions/3940545/what-sdks-can-be-used-for-creating-offline-maps-application-for-ipad-iphone