On 08.01.2016 19:37, Paolo Cavallini wrote:
Il 08/01/2016 19:02, Paolo Cavallini ha scritto:
Hi all,
I tried several options, but I cannot get rid of the errors in layers from
http://opendata.regione.abruzzo.it/content/ctrn-regione-abruzzo-15000
e.g.
http://opendata.regione.abruzzo.it/opengeodata/Dati_vettoriali/DBTR/CTR_2001-05_5k_SHP/348111.rar
Any hint?
BTW, neither GRASS nor Make Valid (the lwgeom plugin) succeed in fixing
these errors, as they simply throw away the polygons with errors.
Furthermore, lwgeom plugin seems not to be working (returning an empty
output layer) on 2.8, whereas it runs on >=2.12. Feedback would be welcome.
All the best.
Hi Paolo
Looks like these are 3D shapefiles, at least when running the checker
with "create new layer" I got:
Failed to create the output layer: creation of layer failed (OGR
error:Geometry type of `3D Polygon' not supported in shapefiles.
Type can be overridden with a layer creation option
of SHPT=POINT/ARC/POLYGON/MULTIPOINT/POINTZ/ARCZ/POLYGONZ/MULTIPOINTZ.
)
Some improvements are needed in QgsVectorFileWriter to discard the Z
component resp to allow 3D polygons.
I'll also look at whether there is some bad handling within the geometry
checker code itself.
Best Sandro
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