SQLite/spatialite tile data source

[kalayda]

Hi!
Can't find if it was discussed to use sqlite database as map data source.

The most straight way, I see, is to use spatialite_osm_raw from spatialite-tools to convert osm.pbf to sqlite file. Somebody may than use this file as offline map storage.
The sqlite database needs significantly more disk spaces, then pbf, but it provides much more faster access to data. And potentially may use more complecated and robust, than "pure" osm file, data format. For example, it is possible to convert OSM nodes, referred by relations and ways, to spatialite geometry to use ISO 19125 (Simple Feature) API for faster and presize data fetching and "in-place" operations.

What do you think about to add sqlite/spatialite support to VTM?
At a glance, vtm-extras contains Overpass code, which can be reused for parsing OSM elements, extracted from database.

[devemux86]

You can use offline Mapsforge maps, see the MapsforgeActivity example.

Mapsforge map providers are mentioned here.