Dear all,

Has anyone experience with digitizing polygons in a grass database with QGIS?

I try to digitize vector polygons in a grass database in qgis as described in the QGIS help.

https://docs.qgis.org/3.16/en/docs/user_manual/grass_integration/grass_integration.html#creating-a-new-grass-vector-layer

It works well with points and lines. But with polygons I am not able to capture data. I add a closed boundary and add a centroid. When saving the data I get a message that the geometry type is not compatible. When I try to build the topology with v.build I get a warning "coor file of vector map <name of map>is larger than it should be”.

Has anyone an idea? Thanks a lot!


Kind regards,

Klaus
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