Yeah it's not the geopackage format but that the polygons are just huge, sorry about that. There is ~1000 polygons but each one is a ton of vertices (~100k), so zoomed out the redraw takes a little while (seconds). This is true with fileGBD too, which feels slower than the gpkg FWIW. In practice we have a simplified version of the data we usually deal with and that is plenty fast.
I guess the dream is a format that has "overviews" but for vector data. Maybe gpkg already supports this idea? I haven't really dug into either format, so apologies for my naivety. On Sun, Aug 5, 2018 at 11:15 AM, jratike80 < [email protected]> wrote: > Patrick Young wrote > > We also tried a GeoPackage, but it seemed a little slow to read in QGIS. > > Hi, > > Could you give some more details about your GeoPackage and what you mean > with "little slow"? I have pretty good experiences about using GeoPackage > as > data source for MapServer. I also just tried how a polygon layer with 1.1 > million polygons behaves with QGIS and panning and zooming is pretty much > immediate when the map scale is reasonable. With reasonable scale I mean > that roughly 50000 polygons or less fits the map view so that the spatial > index can drop most of the records. > > -Jukka Rahkonen- > > > > > -- > Sent from: http://osgeo-org.1560.x6.nabble.com/GDAL-Dev-f3742093.html > _______________________________________________ > gdal-dev mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/gdal-dev >
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