> On Sep 30, 2014, at 20:36, "J. Roeleveld" <jo...@antarean.org> wrote:
> >> On 30 September 2014 16:12:31 CEST, Alec Ten Harmsel >> <a...@alectenharmsel.com> wrote: >> >>> On 09/30/2014 10:05 AM, meino.cra...@gmx.de wrote: >>> Suppose the GPS would already be attached >>> to the board and works... >>> >>> Is there any free available software and data for >>> strict offline useage (which does NOT calls >>> to home), which is able to map GPS data to a street/land >>> map? >>> I need both: The maps themselves and the logic to read >>> GPS coordinates and map movements and ways to those maps. >>> >>> Is something like that available for free or should >>> I directly ask the NSA/CIA/FBI/...? >>> >>> Thank you very much in advance for any help! >>> Best regards, >>> mcc >> The only project I know of that has openly available map data is >> OpenStreetMap (openstreetmap.org). I know they have an API, and they >> probably (not sure) have maps available for download. >> >> afaik the only way to combine various map data out of the box is to use >> a GIS package like QGIS. You can write software to do this using the >> proj4 library for an embedded box, not sure if anything for your >> specific use case already exists and is open source. >> >> Alec > > Openstreetmap is a good bet. > > You might also have some luck if you look into PostGIS. > It is an extension to postgresql, which might be overkill, but you might be > able to use that in yiur Google searches. > > If borders would be nice and straight, it would be easy. Unfortunately they > are not. Yes. For example the land border of Finland is around 2000 km long and only it contains 52000 coordinates ;) -- -Matti
