Bug report #16111
different (wrong) output of bufferalgorithm when used in graphical modeller
|Affected QGIS version:||2.18.2||Regression?:||No|
|Operating System:||windows||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||24023|
With 4 different polygonshapefiles I'm doing the following steps: polygon to line -> merge them al together -> split lines on intersection -> polygonize -> inside buffer -> join attributes by location
When doing it by hand, step by step, I have no problem. When putting all those steps together in a model I get following error:
QgsFeature.setGeometry(QgsGeometry): argument 1 has unexpected type 'NoneType'. This happens at the last step.
The problem occurs with the inside buffer. When I use the inside buffer as output of the model and do the 'join attributes by location' by hand, I get the same error.