Bug report #20913

Linstring layer union processing bug

Added by Hirofumi Hayashi almost 2 years ago. Updated over 1 year ago.

Affected QGIS version:3.4.3 Regression?:No
Operating System:Windows10 Pro Easy fix?:No
Pull Request or Patch supplied:No Resolution:no timely feedback
Crashes QGIS or corrupts data:No Copied to github as #:28732


Union processing of linestrings layer have a bug that the processing at the end of the overlapping linestring is incorrect.

  • see attached capture/003.png

QGIS3.4.3 (2f64a3c4e7)

Reproduction:(use attached zip file)

1) load unionbug.qgz

2) Check overlapped linestrings layer * see capture/001.png

3) Select Vector > Geoprocessing tools > Union ...

4) Select Input layer to miyakojimatest1

5) Run union processing

6) Check Union result * see capture/002.png and 003.png

union_bugreport20190104.zip (1010 KB) Hirofumi Hayashi, 2019-01-04 02:59 AM

union.sqlite (628 KB) Giovanni Manghi, 2019-01-07 09:31 AM


#1 Updated by Giovanni Manghi almost 2 years ago

  • Status changed from Open to Feedback
  • File union.sqlite added

Is the attach result correct?

#2 Updated by Giovanni Manghi over 1 year ago

  • Resolution set to no timely feedback
  • Status changed from Feedback to Closed

Closing for lack of feedback.

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