[gdal-dev] Vector Tiles in OGR

[Even Rouault]

On mardi 13 février 2018 02:06:47 CET jratike80 wrote:
> Even Rouault-2 wrote
> 
> > On lundi 22 janvier 2018 23:40:55 CET Even Rouault wrote:
> >> Hi,
> >> 
> >> > P.S. @Even: Any news on a GDAL/OGR MVT reader?
> >> 
> >> Yes, a new OGR MVT reader has just been committed in GDAL trunk:
> >> http://gdal.org/drv_mvt.html
> > 
> > And the writer part (for MVT and MBTILES) driver is now in trunk
> > 
> > http://gdal.org/drv_mvt.html
> > http://gdal.org/frmt_mbtiles.html
> > 
> > Even
> 
> Hi,
> 
> At the moment we create MVT tiles from PostGIS with ST_AsMVT to suit with
> the national gridset that is based on ETRS-TM35FIN (EPSG:3067) coordinate
> system. How difficult would you consider to enhance the driver to split and
> write vector tiles according to other gridsets than the Web Mercator one?

Not that much. But is there a standard way of deriving the tiling scheme for that CRS ? I guess 
not. You'd probably need to manually define the coordinate of the left-corner of the tile (0,0) 
in the CRS and the resolution of the tile at zoom level 0.

Even

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