[geomoose-psc] Reminder: PSC Meeting on Friday

[Jim Klassen]

GeoPackage and PostGIS also support multiple geometry types in a table.

As for creating GeoParquet, this is a decent guide:

https://github.com/opengeospatial/geoparquet/blob/main/format-specs/distributing-geoparquet.md

When using GDAL (3.12+) I use:

|gdal vector set-geom-type \ --lco COMPRESSION=ZSTD --lco COMPRESSION_LEVEL=15 \ --lco GEOMETRY_ENCODING=GEOARROW \ --lco SORT_BY_BBOX=YES \ --multi \ parcels.shp \ parcels.parquet|

gdal vector set-geom-type instead of gdal vector convert to get the --multi option because the shapefile has multi-polygons stored in a file marked as POLYGON.

I'm not 100% clear on if the GEOARROW geometries or the WKB+PARQUET_GEO_TYPES is the preferred method going forward.


On 4/16/26 1:06 PM, Christopher Hughes via geomoose-psc wrote:
> Hi All,
>
> I've added a draft agenda for our meeting tomorrow at https://github.com/geomoose/geomoose/wiki/PSC-Meeting-2026-04-17. I added GeoParquet as agenda item based on Dan's email the other day (I am interested in geoparquet - partly because I was reading that you can have multiple geometry types in a single dataset? - my initial attempts to convert shapefiles to geoparquet failed though, so I'm interested in the conversion process documentation that Eli mentioned).
>
> Minutes from previous meetings can be found here:
> https://github.com/geomoose/geomoose/wiki/PSC-Meetings <https://github.com/geomoose/geomoose/wiki/PSC-Meetings>
>
> As with last month, we'll meet on Liberachat here:
> https://web.libera.chat/?channels=#geomoose <https://web.libera.chat/?channels=#geomoose>
>
> The Matrix/Element?FluffyChat option also works via matrix.osgeo.org <http://matrix.osgeo.org/> on Matrix Channel #geomoose:osgeo.org <http://osgeo.org/>
>
> Chris
>
> --
> Chris Hughes
>
> GIS Analyst
> Lincoln County GIS Department
> 880 NE 7th St. l Newport, OR 97365
> Tel: (541) 574 1283
>
>
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