Bug report #11802

reshape tool 'avoid intersections' snapping not working as expected

Added by Gavin Fleming about 9 years ago. Updated over 6 years ago.

Affected QGIS version:2.6.1 Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:fixed/implemented
Crashes QGIS or corrupts data:Yes Copied to github as #:20026


I have two polygon layers, both with snapping on and both with 'avoid intersections' ticked.

I expect that when I reshape a polygon in one layer, overlapping a polygon in the other layer, that the final generated line will be flush with the existing polygon, i.e. with the same behavious as when digitising a polygon and it overlaps another in the same layer. However, the reshaped part is accepted regardless.

I also expect reshape to result in a flush original border when my reshape overlaps a polygon in the same layer. However in this case it cookie cuts the overlapped polygon.

I would think all these workflows should behave the same as if digitising a new polygon, or is that assumption incorrect?


#1 Updated by Giovanni Manghi about 9 years ago

  • Category changed from Edit widget to Digitising

I agree that at least core tools should be work as expected regarding the "avoid intersection". This should also be extended (or suggested) for most of the plugins that make available digitizing tools.

Duplicate of #11069

#3 Updated by Arnaud Morvan almost 8 years ago

This relates with #11069

#4 Updated by Giovanni Manghi almost 7 years ago

  • Easy fix? set to No
  • Regression? set to No

#5 Updated by Giovanni Manghi over 6 years ago

  • Crashes QGIS or corrupts data changed from No to Yes
  • Description updated (diff)
  • Status changed from Open to Closed
  • Resolution set to fixed/implemented

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