Bug report #20272
Polygon intersection on same layer returning wrong result
Status: | Closed | ||
---|---|---|---|
Priority: | Normal | ||
Assignee: | - | ||
Category: | Processing/QGIS | ||
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 |
Description
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.
History
#1
Updated by Giovanni Manghi almost 6 years ago
- Operating System deleted (
Windows 10 x64) - Priority changed from High to Normal
- Category changed from Vectors to Processing/QGIS
#2
Updated by Julien Cabieces over 5 years 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.