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Geometry by expression does not work after intersection

The issue is that after you ran the intersection tool, the layer geometry type was changed from Point to MultiPoint (even if each feature still only has one part), but in the expression you used, ...
she_weeds's user avatar
  • 12k
6 votes

TypeError when converting QgsMultiLineString to QgsGeometry using PyQGIS

QgsMultiLineString is a child class of QgsAbstractGeometry which can be used to create a QgsGeometry using the following constructor QgsGeometry(QgsAbstractGeometry geom) This means that you can ...
Kalak's user avatar
  • 3,693
1 vote

Remove internal boundaries from a polygon in QGIS

If dissolve leaves you with lines inside the polygon, e.g. due to not exactly overlapping feature boundaries, try buffering by e.g. 1 m including dissolving the features, then "debuffer" by -...
Erik's user avatar
  • 16.1k

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