Bug report #12843

Simplify digitizing tool creates a copy of the geometry

Added by Paolo Cavallini over 5 years ago. Updated over 5 years ago.

Status:Closed
Priority:Low
Assignee:-
Category:Digitising
Affected QGIS version:2.8.2 Regression?:No
Operating System:Windows Easy fix?:No
Pull Request or Patch supplied:No Resolution:worksforme
Crashes QGIS or corrupts data:No Copied to github as #:20938

Description

The behaviour of the simplify tool in the Advance digitizing has apparently changed: now it creates a copy of the polygon, not easy to see because it is apparently behin the original one.
I found the previous behaviour more intuitive.

risultati.zip (5.13 KB) Paolo Cavallini, 2015-05-29 12:00 AM

History

#1 Updated by Nyall Dawson over 5 years ago

I can't confirm - what data type (polygon/multipolygon/...) are you working with? Can you confirm that using the same dataset in 2.8 doesn't copy the feature?

#2 Updated by Paolo Cavallini over 5 years ago

See attached file (I moved one of the polygons for clarity).

#3 Updated by Giovanni Manghi over 5 years ago

  • Status changed from Open to Feedback

can't confirm here with provided data.

#4 Updated by Paolo Cavallini over 5 years ago

The data are the result of simplification. Tested on Debian sid (master) and on verious Windows (2.8.2).

#5 Updated by Paolo Cavallini over 5 years ago

  • Priority changed from Normal to Low

#6 Updated by Giovanni Manghi over 5 years ago

Paolo Cavallini wrote:

The data are the result of simplification. Tested on Debian sid (master) and on verious Windows (2.8.2).

I can't confirm anyway, tested on Linux and Windows on master and 2.8.2

#7 Updated by Nyall Dawson over 5 years ago

Are you sure you meant the simplify tool and not the split tool? I can reproduce this with the split tool, but not the simplify tool...

#8 Updated by Paolo Cavallini over 5 years ago

Nope, is th Simplify one. BTW: tested on Windows XP.

#9 Updated by Marco Hugentobler over 5 years ago

I simplified the right object of the provided shapefile and moved it to see if there is a second object. But there is only one object, so I cannot replicate (master branch from today). Do you get a third object if you simplify one object?

#10 Updated by Paolo Cavallini over 5 years ago

  • Operating System set to Windows
  • OS version set to XP32

Checked on Linux, it works as expected. Going to check again on Windows, where I noticed the issue.

#11 Updated by Paolo Cavallini over 5 years ago

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

Cannot replicate it anymore, sorry for the noise.

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