-guint8 osm_zoom ( gdouble mpp );
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-gboolean osm_coord_to_mapcoord ( const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest );
-void osm_mapcoord_to_center_coord ( MapCoord *src, VikCoord *dest );
-void osm_maplint_download ( MapCoord *src, const gchar *dest_fn );
-void osm_mapnik_download ( MapCoord *src, const gchar *dest_fn );
-void osm_osmarender_download ( MapCoord *src, const gchar *dest_fn );
-