Bug report #20272
Polygon intersection on same layer returning wrong result
|Affected QGIS version:||3.4.0||Regression?:||No|
|Operating System:||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:||invalid|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||28093|
When running the vector Intersection tool and specifying the same layer as Input and Overlay layer,
result contains an intersection and symmetrical difference.
See attached image.
#2 Updated by Julien Cabieces about 1 year ago
- Resolution set to invalid
- Status changed from Open to Closed
Looks normal to me. If you intersect a polygon with itself, it returns the same polygon.
So it's the same for the layer, if you intersect a layer with itself you obtain the same layer, plus the areas where polygons from the layer covers each other.