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 over 5 years ago. Updated 3 months ago.

Status:Open Start Date:10/15/2011
Priority:Normal Due date:
Assigned to:- % Done:

0%

Category:Processing/QGIS
Target version:Future Release - Nice to have
Platform: Resolution:
Platform version: Pull Request or Patch supplied:No
Status info: Tag:

Description

See

http://hub.qgis.org/issues/3126#note-15

and

http://hub.qgis.org/issues/3126#note-16

The case

http://hub.qgis.org/issues/2806
http://hub.qgis.org/issues/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.

History

Updated by Giovanni Manghi over 5 years ago

  • Target version set to Version 1.7.4

Updated by Giovanni Manghi almost 5 years ago

  • Target version changed from Version 1.7.4 to Version 2.0.0

Updated by Pirmin Kalberer over 4 years ago

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

Updated by Giovanni Manghi almost 3 years ago

  • Assigned to deleted (cfarmer -)

Updated by Giovanni Manghi 3 months ago

  • Category changed from fTools to Processing/QGIS

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