[OSM-dev] Writing an OSM map application

[Nick Whitelegg]

On Friday 23 Mar 2007 20:09, Jon Burgess wrote:
> On Fri, 2007-03-23 at 20:26 +0100, Andreas Volz wrote:
> > Hello,
> >
> > I like to write an application that uses the map data from OSM. I
> > looked how other applications solved this. They import the world.osm
> > into a SQL database an read all map information from there. So please
> > try to answer these OSM beginner questions:
> >
> > - Is there a proposed SQL database format for OSM based maps?
>
> I think there are several in SVN, generated by different utilities for
> different purposes:
>
> utils/osm2pgsql
> utils/planet.osm/planet2mysql.rb
> utils/planet.osm/php/planet_to_mysql.phps
> www.openstreetmap.org/osm/db/README
>
> > This would
> > be usefull to share end user generated map data between various systems.
>
> I think the only true common OSM format is the planet.osm file. Each
> application has its own special needs about what data it needs to access
> and what restrictions and other requirements it has.
>
> > - Is there an application which converts the world.osm into a SQL
> > database?
>
> See list above.
>
> > - Are there any libraries (C/C++) which give me a higher level of
> > abstraction on the map data then operating with SQL queries?
>
> I don't think there are any C/C++ libraries specifically for processing
> OSM data directly although you could extract the relevant pieces from
> several existing utilities like mapnik (C++) or osm2pgsql (C) and then
> build upon these.

There is libosm which is in SVN. It's a C++ library which contains 
functionality for reading .osm files, also for fetching live OSM data from 
the internet.

See utils/libosm in SVN. Ask me if you need any help with it.
Note it's still early in development and might have the odd bug or two...

Nick