Hi Jukka, Am Donnerstag, 31. Mai 2018, 16:21:51 CEST schrieb Even Rouault: > On jeudi 31 mai 2018 14:02:32 CEST Rahkonen Jukka (MML) wrote: > > Hi, > > > > I wonder what would it need to store vector tiles into GeoPackage instead > > of MBTiles. Officially probably a new extension like the Tiled Gridded > > Coverage Data extension, but wouln't it technically be rather simple to > > write vector tiles as BLOBs into the tile_data column instead of png or > > jpeg BLOBs? > > "Rather simple", well that's arguable from an implementation point of view, > since the architecture of the MVT and GeoPackage drivers isn't naturally > compatible to make them work together currently. > > But conceptually yes, the vector tiles as BLOBS of a tile pyramid user table > would be a good fit You would also need to write metadata to describe the > layers and attributes, to avoid having to scan all the tiles to retrieve it > (at least for OGR point of view that has a fixed schema constraint to > expose vector features)
What speaks against declaring a Gpkg-Extension "MBTiles" which lets GDAL know that MVT's are stored in MBTile layout? MVT's are quite special geometries, since they are stored in screen coordinates. Regards Pirmin _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/gdal-dev
