[gdal-dev] format for topology?

[Markus Neteler]

On Mon, Oct 9, 2023 at 10:05 PM Even Rouault via gdal-dev
<gdal-dev at lists.osgeo.org> wrote:
>
> Michael,
>
> you won't find much support for that in GDAL itself. You'd better have a
> look at Spatialite topology, PostGIS topology or GRASS topology.

Concerning the latter, here some overview Wiki pages:
- https://grasswiki.osgeo.org/wiki/Vector_topology
- https://grasswiki.osgeo.org/wiki/Vector_Database_Management
- https://grass.osgeo.org/programming8/vectorlib.html

> The process is basically: import your geometries as a topology,  do
> reprojection or other work in the topology domain, and go back to the
> geometry domain.
>
> QGIS has a plugin to work with PostGIS topology:
> https://plugins.qgis.org/plugins/pgtopoeditor/
>
> (I was involved in discussions yeaaars ago about having GDAL offering a
> generic API and translation between all those topology formats but that
> never materialized)
>
> Even

Markus