Bug report #13284

Buffering using buffer distance field hangs, gives no result

Added by Jan D over 8 years ago. Updated over 6 years ago.

Affected QGIS version:2.8.2 Regression?:
Operating System:Windows Easy fix?:
Pull Request or Patch supplied:No Resolution:worksforme
Crashes QGIS or corrupts data:No Copied to github as #:21343


On Windows 7 64 bit. Problem occurs on QGIS 2.6, 2.8.2, and 2.10.1 all installed on the same machine. I don't have another machine to test.
Steps to reproduce:
1. Use any shapefile with multiple features. Attached shapefile (testshapefile.shp) is example.
2. Select one feature.
3. Open Vector->Geoprocessing Tools->Buffer.
4. Select testshapefile.shp as the input vector layer, checkmark "Use only selected features", select radio "buffer distance field", select field with buffer distances (field name buffdist in the attached example), checkmark "Dissolve buffer results", choose output shapefile name, checkmark "Add result to canvas". Press ok.
5. Nothing happens, and the buffer dialog remains open, Ok button is greyed out. Waited 10 minutes, still nothing. If I hit the cancel button, the output shapefile is produced, but it is empty of features.

testshapefile.zip (1.95 KB) Jan D, 2015-08-30 08:53 PM


#1 Updated by Jan D over 8 years ago

#2 Updated by Jan D over 8 years ago

Buffering seems to work if I don't checkmark the "Use only selected features" option.

#3 Updated by Saber Razmjooei about 8 years ago

  • Priority changed from High to Low
  • Status changed from Open to Feedback
  • Category set to 44

I can't replicate your problem. It buffers instantly.

Also, your shapefile is not "topologically correct". There are overlapping features.

#4 Updated by Saber Razmjooei about 8 years ago

Consider, upgrading to 2.8.3

#5 Updated by Saber Razmjooei about 8 years ago

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

#6 Updated by Giovanni Manghi over 6 years ago

The "ftools" category is being removed from the tracker, changing the category of this ticket to "Processing/QGIS" to not leave the category orphaned.

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