Bug report #6784

Splitting a topologically correct polygon produces topologically incorrect parts

Added by paolo prosperi over 11 years ago. Updated over 9 years ago.

Affected QGIS version:master Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:worksforme
Crashes QGIS or corrupts data:No Copied to github as #:15933


The split tool applied to a polygon layer with shared boundaries (topology correct) fails in producing new polygons with shared boundary (topology, again, incorrect). So much so, if after splitting a polygon into two I try to rejoin the two parts, they do not merge. As a workaround, I need to reshape the new boundary between the two parts and then merge them. Only then dangles that impeded merging (and that should not be there at all) become visible.


#1 Updated by Jürgen Fischer almost 10 years ago

  • Category set to Digitising

#2 Updated by Giovanni Manghi almost 10 years ago

  • Status changed from Open to Feedback

cannot confirm here, at least with the latest master, still true? eventually attach sample data.

#3 Updated by Giovanni Manghi over 9 years ago

  • Resolution set to worksforme
  • Status changed from Feedback to Closed

closing for lack of feedback, please reopen if necessary.

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