[QGIS-Developer] Split parts tool creates invalid polygons

Nyall Dawson nyall.dawson at gmail.com
Tue Feb 13 12:50:00 PST 2018


On 14 February 2018 at 06:44, Anita Graser <anitagraser at gmx.at> wrote:
> Hi,
>
> The split parts tool creates invalid polygons according to GEOS check
> validity. This issue seems to have been discussed two years ago
> https://issues.qgis.org/issues/12799 but it still persists today in master.
>
> To reproduce:
> 1. Create a memory layer with multipolygon type
> 2. Add a polygon
> 3. Split the polygon using split parts
> 4. Use the vertex tool to move the parts apart, in order to avoid issues
> with polygon parts sharing an edge or vertex
> 5. Run check validity
>

Can you please share before/after WKT for the geometries?

Nyall


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