Feature request #4384

ftools: expose an (geos) option in the qgis gui to do some snapping/renoding before running an union

Added by Giovanni Manghi about 6 years ago. Updated 2 months ago.

Pull Request or Patch supplied:No Resolution:
Easy fix?:No


See #3126-15 and #3126-16

The case


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.


#1 Updated by Giovanni Manghi almost 6 years ago

  • Target version set to Version 1.7.4

#2 Updated by Giovanni Manghi over 5 years ago

  • Target version changed from Version 1.7.4 to Version 2.0.0

#3 Updated by Pirmin Kalberer about 5 years ago

  • Target version changed from Version 2.0.0 to Future Release - Nice to have

#4 Updated by Giovanni Manghi over 3 years ago

  • Assignee deleted (cfarmer -)

#5 Updated by Giovanni Manghi 10 months ago

  • Category changed from 44 to Processing/QGIS

#6 Updated by Giovanni Manghi 6 months ago

  • Easy fix? set to No

#7 Updated by Jürgen Fischer 2 months ago

  • Description updated (diff)

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