[postgis-devel] [postgis-users] PSC Vote: Keep or drop Flatgeobuf in PostGIS 3.2.0

[Bruce Rindahl]

MVT takes up a LOT of disk space.  The advantage is thousands of small
files that Leaflet only asks for the tiles in the view and can cache the
tiles.
I haven't done a full seed of the smallest level as that would take days
and days.  They are generated on the fly as requested and served directly
after that.

On Wed, Dec 15, 2021 at 7:01 PM Regina Obe <lr at pcorp.us> wrote:

> Just curious what are your MVT sizes comparable for you deepest tile level.
>
> I was hoping it would be better than Shapefile but guess not always, but
> good to see it is better than GeoJSON.
>
>
>
> Thanks,
>
> Regina
>
>
>
> *From:* postgis-devel [mailto:postgis-devel-bounces at lists.osgeo.org] *On
> Behalf Of *Bruce Rindahl
> *Sent:* Wednesday, December 15, 2021 7:29 PM
> *To:* PostGIS Development Discussion <postgis-devel at lists.osgeo.org>
> *Subject:* Re: [postgis-devel] [postgis-users] PSC Vote: Keep or drop
> Flatgeobuf in PostGIS 3.2.0
>
>
>
> Doing a quick test with the wildfires in CA the past 3 years.
>
>
>
> Shapefile = 9.42 MB
>
> GeoJSON = 26.5 MB
>
> FlatGeobuf  = 9.42 MB
>
>
>
> Right now I am serving the fires up via MVT on open layers and will try to
> add a FlatGeobuf layer for testing.
>
>
>
> Generated the file via ogr2ogr and will test when postGIS 3.2 is out but
> it does look like a compact format.  QGIS imports it with no issues.  As an
> exchange format it will have to be on the command line via ogr2ogr or psql
> either via GDAL or native postGIS
>
>
>
>
>
> On Thu, Nov 25, 2021 at 9:08 AM Jeff McKenna <
> jmckenna at gatewaygeomatics.com> wrote:
>
> As an aside, I appreciate this explanation on speed and benefits, Björn,
> of FlatGeobuf.  Thanks,
>
> -jeff
>
>
>
>
> --
> Jeff McKenna
> GatewayGeo: Developers of MS4W, MapServer Consulting and Training
> co-founder of FOSS4G
> http://gatewaygeo.com/
>
> _______________________________________________
> postgis-devel mailing list
> postgis-devel at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/postgis-devel
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/postgis-devel/attachments/20211216/0fba5c7e/attachment.html>