Feature request #4384

Updated by Jürgen Fischer over 2 years ago

See #3126-15

https://issues.qgis.org/issues/3126#note-15

and #3126-16



https://issues.qgis.org/issues/3126#note-16

The case



#2806

#3126



merging polygons with "dirty" geometries (0 size areas, slivers) causes to get incorrect results.



Adding an option to set tolerance during geometry union operations (as Arc* does) will help the user to get their results without using tools like GRASS.

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