Bug report #16985

Reshape Features can't handle resulting exclaves

Added by Andreas Wicht about 2 years ago. Updated 6 months ago.

Status:Open
Priority:High
Assignee:-
Category:Digitising
Affected QGIS version:3.4.5 Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:
Crashes QGIS or corrupts data:Yes Copied to github as #:24884

Description

The Reshape Features Tool in combination with 'topological editing' and 'avoid intersections' turned on does not resolve overlaps for neighbouring polygons, when the reshaped boundary creates an exclave in the neighbouring polygon.

If this behaviour is intentional it might be a usability boost to catch this case and handle it correctly.

reshape_features_2.png - after edit (28.9 KB) Andreas Wicht, 2017-08-08 03:17 PM

reshape_features_1.png - before edit (23.7 KB) Andreas Wicht, 2017-08-08 03:17 PM

History

#1 Updated by Giovanni Manghi about 2 years ago

  • Status changed from Open to Feedback

why "Crashes QGIS or corrupts data:" is "yes"?

#2 Updated by Andreas Wicht about 2 years ago

Giovanni Manghi wrote:

why "Crashes QGIS or corrupts data:" is "yes"?

isn't an invalid polygon corrupted output? or would that mean completely broken and not displayable anymore?

#3 Updated by Giovanni Manghi about 2 years ago

  • Priority changed from Normal to High
  • Status changed from Feedback to Open

#4 Updated by Andreas Wicht over 1 year ago

This issue also applies to QGIS 3.0.
Shall I open a second ticket or how can I change the affected version(s)?

#5 Updated by Giovanni Manghi 6 months ago

  • Status changed from Open to Feedback

Andreas Wicht wrote:

This issue also applies to QGIS 3.0.
Shall I open a second ticket or how can I change the affected version(s)?

still valid for 3.4.5/3.6 or master?

#6 Updated by Andreas Wicht 6 months ago

Giovanni Manghi wrote:

still valid for 3.4.5/3.6 or master?

Yes, can confirm for 3.4.5, 3.6.0 and master.

#7 Updated by Andreas Wicht 6 months ago

  • Status changed from Feedback to Open

#8 Updated by Giovanni Manghi 6 months ago

  • Affected QGIS version changed from 2.18.11 to 3.4.5

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