[Qgis-user] Multipolygons with errors ?

[Goyo]

2013/3/25 David J. Bakeman <dbakeman at comcast.net>:

> OK.  So if I take your shape file and run Vector/Geometry
> Tools/Singlepart to multipart.

Then if two parts of a feature touch each other I think it's invalid
again (as for the OGC-SFS).

> Note grass doesn't report any topo errors on either the singlepart or
> multipart shape files.

This may be due to GRASS using a different geometry model. It
validates against different criteria.

Goyo